Alexandros G .Sfakianakis,ENT,Anapafeos 5 Agios Nikolaos Crete 72100 Greece,00302841026182

Παρασκευή 20 Ιανουαρίου 2017

Adaptation and validation of the Singing Voice Handicap Index into Polish

Abstract

Objective

To translate and adapt the original SVHI for the Polish population and to evaluate the psychometric properties of the Polish SVHI version, such as internal consistency, reliability and construct validity in different groups of dysphonic singers.

Study design

Prospective case-control study.

Setting

Patients treated at a single institute.

Participants

60 singers with voice disorders and 57 healthy singers completed the Singing Voice Handicap Index (SVHI) and the Voice Handicap Index (VHI). Thirty singers completed the SVHI twice within a 2 - 4 week interval.

Main outcome measures

internal consistency, test-retest reliability, discriminant validity, criterion-related validity

Results

A strong Cronbach alpha coefficient (0.96) indicates that the SVHI items are measuring the same construct. Evaluating the test-retest reliability, the r –Spearman correlation coefficient was r=0.797 for the total score of SVHI, which shows a good level of reproducibility. There were significant differences between the control group (CG) and patients with benign vocal fold lesions (p<0.001), CG and singers with muscle tension dysphonia (p<0.001), CG and coexistence of muscle tension dysphonia and chronic laryngitis (p<0.001). There was a positive statistically significant correlation between SVHI and VHI (r=0.753, p=0.000*).

Conclusions

The Polish version of SVHI serves as a valid health status instrument, as well as discriminating between singers with voice disorders and singers without voice problems. The SVHI is easy to perform in clinical practice.

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The increased expression of TCF3 is correlated with poor prognosis in Chinese patients with nasopharyngeal carcinoma

Abstract

Objectives

Regulatory factors controlling stem cell identity and self-renewal are often active in aggressive cancers and are thought to promote cancer growth and progression. B-cell-specific transcription factor 3 (TCF3/E2A) is a member of the T-cell factor/lymphoid enhancer factor (TCF/LEF) transcription factor family that is central to regulating epidermal and embryonic stem cell identity. It has been reported that TCF3 was connected with the development and progression of a number of human cancers. In this study, we aimed to identify the expression of TCF3 in human NPC and evaluate its clinical significance.

Design

To investigate the expression of TCF3 in nasopharyngeal carcinoma (NPC) and its relationship to prognosis.

Setting

An in vitro study.

Main outcome measures

We analyzed the expression of TCF3 in NPC and in non-tumorous nasopharyngeal tissues by quantitative RT-PCR and Western blotting. The expression patterns of TCF3 in 117 archived paraffin-embedded NPC specimens were characterized by immunohistochemistry (IHC), and the correlation between of the TCF3 protein expression and the clinicopathological features of NPC was analyzed.

Results

We observed that TCF3 had a higher expression in nasopharyngeal carcinoma than in non-tumorous nasopharyngeal tissues of 117 archived paraffin-embedded NPC specimens, and 80 (68.4%) biopsy tissues revealed high levels of TCF3 expression. Furthermore, statistical analyses demonstrated that the increased expression of TCF3 was closely related to clinical stage, locoregional recurrence and distant metastasis of NPC. NPC patients with high levels of TCF3 expression had a shorter survival time, whereas patients with lower levels of TCF3 expression survived longer. Moreover, multivariate analysis suggested that the upregulation of TCF3 was a critical prognostic factor for NPC.

Conclusions

Our observations suggest, for the first time, that TCF3 is significantly associated with the development and progression of NPC, which can be used as an important prognostic marker for NPC patients and may be an effective target for the treatment of NPC.

This article is protected by copyright. All rights reserved.



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Adaptation and validation of the Singing Voice Handicap Index into Polish

Abstract

Objective

To translate and adapt the original SVHI for the Polish population and to evaluate the psychometric properties of the Polish SVHI version, such as internal consistency, reliability and construct validity in different groups of dysphonic singers.

Study design

Prospective case-control study.

Setting

Patients treated at a single institute.

Participants

60 singers with voice disorders and 57 healthy singers completed the Singing Voice Handicap Index (SVHI) and the Voice Handicap Index (VHI). Thirty singers completed the SVHI twice within a 2 - 4 week interval.

Main outcome measures

internal consistency, test-retest reliability, discriminant validity, criterion-related validity

Results

A strong Cronbach alpha coefficient (0.96) indicates that the SVHI items are measuring the same construct. Evaluating the test-retest reliability, the r –Spearman correlation coefficient was r=0.797 for the total score of SVHI, which shows a good level of reproducibility. There were significant differences between the control group (CG) and patients with benign vocal fold lesions (p<0.001), CG and singers with muscle tension dysphonia (p<0.001), CG and coexistence of muscle tension dysphonia and chronic laryngitis (p<0.001). There was a positive statistically significant correlation between SVHI and VHI (r=0.753, p=0.000*).

Conclusions

The Polish version of SVHI serves as a valid health status instrument, as well as discriminating between singers with voice disorders and singers without voice problems. The SVHI is easy to perform in clinical practice.

This article is protected by copyright. All rights reserved.



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The increased expression of TCF3 is correlated with poor prognosis in Chinese patients with nasopharyngeal carcinoma

Abstract

Objectives

Regulatory factors controlling stem cell identity and self-renewal are often active in aggressive cancers and are thought to promote cancer growth and progression. B-cell-specific transcription factor 3 (TCF3/E2A) is a member of the T-cell factor/lymphoid enhancer factor (TCF/LEF) transcription factor family that is central to regulating epidermal and embryonic stem cell identity. It has been reported that TCF3 was connected with the development and progression of a number of human cancers. In this study, we aimed to identify the expression of TCF3 in human NPC and evaluate its clinical significance.

Design

To investigate the expression of TCF3 in nasopharyngeal carcinoma (NPC) and its relationship to prognosis.

Setting

An in vitro study.

Main outcome measures

We analyzed the expression of TCF3 in NPC and in non-tumorous nasopharyngeal tissues by quantitative RT-PCR and Western blotting. The expression patterns of TCF3 in 117 archived paraffin-embedded NPC specimens were characterized by immunohistochemistry (IHC), and the correlation between of the TCF3 protein expression and the clinicopathological features of NPC was analyzed.

Results

We observed that TCF3 had a higher expression in nasopharyngeal carcinoma than in non-tumorous nasopharyngeal tissues of 117 archived paraffin-embedded NPC specimens, and 80 (68.4%) biopsy tissues revealed high levels of TCF3 expression. Furthermore, statistical analyses demonstrated that the increased expression of TCF3 was closely related to clinical stage, locoregional recurrence and distant metastasis of NPC. NPC patients with high levels of TCF3 expression had a shorter survival time, whereas patients with lower levels of TCF3 expression survived longer. Moreover, multivariate analysis suggested that the upregulation of TCF3 was a critical prognostic factor for NPC.

Conclusions

Our observations suggest, for the first time, that TCF3 is significantly associated with the development and progression of NPC, which can be used as an important prognostic marker for NPC patients and may be an effective target for the treatment of NPC.

This article is protected by copyright. All rights reserved.



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Immunoexpression of HDAC1, HDAC2 and HAT1 in actinic cheilitis and lip squamous cell carcinoma

Abstract

Background

Acetylation/deacetylation are the most studied covalent histone modifications resulting in transcriptional regulation with histone deacetylases (HDAC) and histone acetyltransferases (HAT) as the main associated enzymes. These enzymes overexpression induces abnormal transcription of key genes that regulate important cellular functions, such as proliferation, cell cycle regulation, and apoptosis. Thus, the expression of different HATs and HDACs has been evaluated in various cancers. OBJECTIVE: to investigate HDAC1, HDAC2 and HAT1 expression in lip squamous cell carcinoma (LSCC) and actinic cheilitis (AC) and to demonstrate their correlation with DNA metyltransferases (DNMTs).

Material And Methods

Thirty cases of lip squamous cell carcinoma (LSCC), thirty cases of actinic cheilitis (AC), and 28 cases of non-neoplastic epithelium as control, were selected for immunohistochemical investigation. RESULTS: Nuclear HDAC2 immunopositivity was significantly higher in AC (75.07%±29.70) when compared with LSCC (51.06%±39.02). HDAC1 and HAT1 nuclear immunostaining were higher in AC, with no statistical significance. When comparing data with our previous study, we found a positive correlation between HDAC1 X DNMT1/DNMT3b, HDAC2 X DNMT3b, and HAT1 X DNMT1/DNMT3b for certain studied groups.

Conclusion

This study showed higher levels of nuclear HDAC2 immunopositivity in AC, possibly indicating that this enzyme plays a key role in lip photocarcinogenesis early stages.

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Long-term outcomes of endolymphatic sac shunting with local steroids for Meniere's disease

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Publication date: Available online 20 January 2017
Source:American Journal of Otolaryngology
Author(s): Cameron C. Wick, Nauman F. Manzoor, Caileigh McKenna, Maroun T. Semaan, Cliff A. Megerian
ObjectivesTo evaluate the long-term efficacy of endolymphatic sac shunt techniques with and without local steroid administration.Study designRetrospective case series and patient survey.SettingTertiary university hospital.PatientsMeniere's disease (MD) patients that failed medical therapy and subsequently underwent an endolymphatic sac shunt procedure. All patients had definitive or probable MD and at least 18-months of follow-up.InterventionsThree variations on endolymphatic sac decompression with shunt placement were performed: Group A received no local steroids, Group B received intratympanic dexamethasone prior to incision, and Group C received dexamethasone via both intratympanic injection and direct endolymphatic sac instillation.Main outcome measure(s)Vertigo control, hearing results, and survey responses.ResultsBetween 2002 and 2013, 124 patients with MD underwent endolymphatic sac decompression with shunt placement. 53 patients met inclusion criteria. Groups A, B, and C had 6 patients, 20 patients, and 27 patients, respectively. Mean follow-up was 56months. Vertigo control improved in 66%, 83%, and 93% of Groups A, B, and C. Functional level improved for Group B (−2.0) and Group C (−2.2) but was unchanged in Group A. Pure-tone average and speech discrimination scores changed by +22dB and −30%, +6dB and −13%, and +6dB and −5% in Groups A, B, and C. The long-term hearing results were significantly better with steroids (Groups B and C) according to the AAO-HNS 1995 criteria but did not meet significance on non-parametric testing.ConclusionsEndolymphatic sac shunt procedures may benefit from steroid instillation at the time of shunt placement.



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Cochlear implantation in an NPC patient post-irradiation presenting with electrode array extrusion through the posterior canal wall

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Publication date: Available online 19 January 2017
Source:American Journal of Otolaryngology
Author(s): Celeste Ann Chua, David Low, Tiong-Yong Tan, Heng-Wai Yuen




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Surgical timing for facial paralysis after temporal bone trauma

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Publication date: Available online 19 January 2017
Source:American Journal of Otolaryngology
Author(s): Peng Xu, Aiyan Jin, Baoqiang Dai, Ruijie Li, Yefeng Li
ObjectivesTo explore surgical timing of facial paralysis after temporal bone trauma.MethodsThe clinical data of the patients with facial paralysis after temporal bone trauma who underwent subtotal facial nerve decompression were retrospectively collected, and 80 cases followed-up for one year were enrolled in the study. They were divided into different subgroups according to the age, onset, and interval between facial paralysis and surgery, and the outcomes of facial nerve between different subgroups were compared.ResultsThe number of patients who achieved good recovery of HB Grade I or II was 52 of 80 (65.0%). 43 of 66 cases (65.2%) in the younger group had good recovery of facial nerve in contrast to 9 of 14 cases (64.3%) in the elderly group, without significant difference (p>0.05). 9 of 13 cases (69.2%) in the delayed onset group had good recovery, while 43 of 67 cases (64.2%) in the immediate onset group had good recovery, without significant difference (p>0.05). The good recovery rate of the <1month group was statistically higher compared to the 3–6months group or the >6months group (P<0.05), while the good recovery rate of the <1month group was not statistically higher than that of the 1–2months group or the 2–3months group (P>0.05).ConclusionThis study demonstrated that the good recovery rate of facial paralysis after temporal bone trauma was uncorrelated with age and onset. It was better to perform surgical decompression within 3months after facial paralysis.



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Long-term outcomes of endolymphatic sac shunting with local steroids for Meniere's disease

alertIcon.gif

Publication date: Available online 20 January 2017
Source:American Journal of Otolaryngology
Author(s): Cameron C. Wick, Nauman F. Manzoor, Caileigh McKenna, Maroun T. Semaan, Cliff A. Megerian
ObjectivesTo evaluate the long-term efficacy of endolymphatic sac shunt techniques with and without local steroid administration.Study designRetrospective case series and patient survey.SettingTertiary university hospital.PatientsMeniere's disease (MD) patients that failed medical therapy and subsequently underwent an endolymphatic sac shunt procedure. All patients had definitive or probable MD and at least 18-months of follow-up.InterventionsThree variations on endolymphatic sac decompression with shunt placement were performed: Group A received no local steroids, Group B received intratympanic dexamethasone prior to incision, and Group C received dexamethasone via both intratympanic injection and direct endolymphatic sac instillation.Main outcome measure(s)Vertigo control, hearing results, and survey responses.ResultsBetween 2002 and 2013, 124 patients with MD underwent endolymphatic sac decompression with shunt placement. 53 patients met inclusion criteria. Groups A, B, and C had 6 patients, 20 patients, and 27 patients, respectively. Mean follow-up was 56months. Vertigo control improved in 66%, 83%, and 93% of Groups A, B, and C. Functional level improved for Group B (−2.0) and Group C (−2.2) but was unchanged in Group A. Pure-tone average and speech discrimination scores changed by +22dB and −30%, +6dB and −13%, and +6dB and −5% in Groups A, B, and C. The long-term hearing results were significantly better with steroids (Groups B and C) according to the AAO-HNS 1995 criteria but did not meet significance on non-parametric testing.ConclusionsEndolymphatic sac shunt procedures may benefit from steroid instillation at the time of shunt placement.



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Cochlear implantation in an NPC patient post-irradiation presenting with electrode array extrusion through the posterior canal wall

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Publication date: Available online 19 January 2017
Source:American Journal of Otolaryngology
Author(s): Celeste Ann Chua, David Low, Tiong-Yong Tan, Heng-Wai Yuen




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Surgical timing for facial paralysis after temporal bone trauma

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Publication date: Available online 19 January 2017
Source:American Journal of Otolaryngology
Author(s): Peng Xu, Aiyan Jin, Baoqiang Dai, Ruijie Li, Yefeng Li
ObjectivesTo explore surgical timing of facial paralysis after temporal bone trauma.MethodsThe clinical data of the patients with facial paralysis after temporal bone trauma who underwent subtotal facial nerve decompression were retrospectively collected, and 80 cases followed-up for one year were enrolled in the study. They were divided into different subgroups according to the age, onset, and interval between facial paralysis and surgery, and the outcomes of facial nerve between different subgroups were compared.ResultsThe number of patients who achieved good recovery of HB Grade I or II was 52 of 80 (65.0%). 43 of 66 cases (65.2%) in the younger group had good recovery of facial nerve in contrast to 9 of 14 cases (64.3%) in the elderly group, without significant difference (p>0.05). 9 of 13 cases (69.2%) in the delayed onset group had good recovery, while 43 of 67 cases (64.2%) in the immediate onset group had good recovery, without significant difference (p>0.05). The good recovery rate of the <1month group was statistically higher compared to the 3–6months group or the >6months group (P<0.05), while the good recovery rate of the <1month group was not statistically higher than that of the 1–2months group or the 2–3months group (P>0.05).ConclusionThis study demonstrated that the good recovery rate of facial paralysis after temporal bone trauma was uncorrelated with age and onset. It was better to perform surgical decompression within 3months after facial paralysis.



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Expansion of CD11b+Ly-6C+ myeloid-derived suppressor cells (MDSCs) driven by galectin-9 attenuates CVB3-induced myocarditis

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Publication date: March 2017
Source:Molecular Immunology, Volume 83
Author(s): Yingying Zhang, Mengying Zhang, Xueqin Li, Zongsheng Tang, Ling He, Kun Lv
Galectin-9 is known to play a role in the modulation of innate and adaptive immunity to ameliorate CVB3-induced myocarditis. In the present study, we found that galectin-9 induced the expansion of CD11b+Ly-6C+ myeloid-derived suppressor cells (MDSCs) in the heart from CVB3-infected mice. Adoptive transfer of CD11b+Ly-6C+ MDSCs significantly alleviated myocarditis accompanied by increased Th2 and Treg frequency and anti-inflammatory cytokines expression in the heart tissue. Moreover, Ly6C+ MDSCs, but not Ly6G+ cells, expressed Arg-1 and NOS2, and suppressed CD4+ T cell proliferation in vitro in an Arg-1-dependent mechanism; an event that was reversed with treatment of either an Arg-1 inhibitor or addition of excess l-arginine. Furthermore, Ly6C+ MDSCs co-expressed higher levels of F4/80, Tim-3, and IL-4Rα, and had the plasticity to up-regulate NOS2 or Arg-1 in response to IFN-γ or IL-4 treatment. The present results indicate that galectin-9 expands CD11b+Ly-6C+ MDSCs to ameliorate CVB3-induced myocarditis.



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IL-12 and IL-23 modulate plasticity of FoxP3+ regulatory T cells in human Leprosy

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Publication date: March 2017
Source:Molecular Immunology, Volume 83
Author(s): Mohd Tarique, Chaman Saini, Raza Ali Naqvi, Neena Khanna, Alpana Sharma, D.N. Rao
Leprosy is a bacterial disease caused by M. leprae. Its clinical spectrum reflects the host's immune response to the M. leprae and provide an ideal model to investigate the host pathogen interaction and immunological dysregulation. Tregs are high in leprosy patients and responsible for immune suppression of the host by producing IL-10 and TGF-β cytokines. In leprosy, plasticity of Tregs remain unstudied. This is the first study describing the conversion of Tregs into Th1-like and Th17-like cells using in vitro cytokine therapy in leprosy patients. Peripheral blood mononuclear cells from leprosy patients were isolated and stimulated with M. leprae antigen (MLCwA), rIL-12 and rIL-23 for 48h. Expression of FoxP3 in CD4+CD25+ Tregs, intracellular cytokines IFN-γ, TGF-β, IL-10 and IL-17 in Tregs cells were evaluated by flow cytometry (FACS) after stimulation. rIL-12 treatment increases the levels of pStat4 in Tregs and IFN-γ production. In the presence of rIL-23, pStat3+ and IL-17A+ cells increase. rIL-12 and r—IL-23 treatment downregulated the FoxP3 expression, IL-10 and TGF-β production by Tregs and enhances the expression of co-stimulatory molecules (CD80, CD86). In conclusion rIL-12 converts Tregs into IFN-γ producing cells through STAT-4 signaling while rIL-23 converts Tregs into IL-17 producing cells through STAT-3 signaling in leprosy patients. This study may helpful to provide a new avenue to overcome the immunosuprression in leprosy patients using in vitro cytokine.



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Histopathological findings of extra-ileal manifestations at initial diagnosis of Crohn’s disease-related ileitis



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DLX3 mutation negatively regulates odontogenic differentiation of human dental pulp cells

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Publication date: Available online 19 January 2017
Source:Archives of Oral Biology
Author(s): Li Zeng, Na Zhao, Dong Han, Haochen Liu, Yang Liu, Yixiang Wang, Hailan Feng
ObjectivesThe purpose of this study was to investigate the role of a novel mutant DLX3 on the odontogenic differentiation of human dental pulp cells (hDPCs) in tricho-dento-osseous (TDO) syndrome.DesignhDPCs were obtained from the healthy premolars, stably-expressing wild-type DLX3 (WT), novel mutant DLX3 (Mu) and control vector (NC) cells were generated using recombinant lentiviruses. The proliferation rates of WT-hDPCs and Mu-hDPCs were measured by CCK8 assay. Odonto-differentiation of hDPCs was assessed by alkaline phosphatase (ALP) activity assay, and mineralization ability was assessed by Alizarin red staining. Odontogenic markers, including DMP-1, DSPP, Nes, ALP, and DLX5, were analyzed using real-time polymerase chain reaction (qPCR). DMP-1 and DSPP expressions were further confirmed by Western blotting.ResultsCCK8 results showed that the novel mutant DLX3 decreased the proliferation rate of hDPCs compared with wild-type DLX3. qPCR showed that the novel mutant DLX3 weakened odontogenic differentiation by downregulating the expression of odontogenic genes. These results were further confirmed by Western blotting and ALP activity assay. Additionally, Alizarin red staining showed that the novel mutant DLX3 decreased the mineralization of hDPCs compared with wild-type DLX3.ConclusionsNovel de novo mutation of DLX3 significantly decreases the proliferation rate and inhibits the odontogenic differentiation and mineralization of hDPCs, suggesting that this novel mutation of DLX3 can influence the dentinogenesis in TDO syndrome.



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Effects of glucocorticoid-induced osteoporosis on bone tissue of rats with experimental periodontitis

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Publication date: Available online 20 January 2017
Source:Archives of Oral Biology
Author(s): Luzia Hermínia Teixeira Sousa, Eveline Valeriano Moura, Ana Larissa Queiroz, Danielle Val, Hellíada Chaves, Mario Lisboa, Flávia Furlaneto, Gerly Anne Brito, Paula Goes
Objective: To evaluate the effects of osteoporosis induced by glucocorticoid (GIOP) on bone tissue of rats with experimental periodontitis (EP).Design48 male Wistar rats divided into groups: Naïve, EP, GIOP and GIOP+EP. Rats of GIOP and GIOP+EP groups received 7mg/kg of dexamethasone intramuscularly once a week for 5 weeks. Following, EP and GIOP+EP groups were subjected to ligature-induced periodontitis. Naïve group experienced no manipulation. After 11 days, the animals were euthanized and left maxillae collected for macroscopic, radiographic, micro-tomographic and microscopic analysis of alveolar bone loss (ABL). Blood samples were collected for determination of bone-specific alkaline phosphatase (BALP) levels and the right femurs were removed for radiographic and biomechanical analysis.ResultsEP caused ABL and reduced BALP levels (p<0,05), but it did not change the architecture or biomechanics of femur, compared to Naïve. GIOP did not cause ABL, but it significantly decreased alveolar bone mineral density (ABMD), bone percentage and trabecular thickness (Tb.Th) and increased alveolar bone porosity (p<0.05) and significantly reduced BALP serum levels, as well as radiographic density and Young's module of femur, compared to Naïve. There was a greater ABL in group GIOP+EP when compared to EP (p<0.05). GIOP+EP caused a greater decrease on ABMD, Tb.Th, bone percentage and increased bone porosity (p<0.05) and also presented a significant reduction in BALP levels (p<0.05), in radiographic density and in Young's module of femur compared to EP (p<0.05).ConclusionsGIOP can potentiate the destructive effects of EP on alveolar bone and alter the systemic bone loss, by promoting bone resorption and reducing osteoblast activity.



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DLX3 mutation negatively regulates odontogenic differentiation of human dental pulp cells

S00039969.gif

Publication date: Available online 19 January 2017
Source:Archives of Oral Biology
Author(s): Li Zeng, Na Zhao, Dong Han, Haochen Liu, Yang Liu, Yixiang Wang, Hailan Feng
ObjectivesThe purpose of this study was to investigate the role of a novel mutant DLX3 on the odontogenic differentiation of human dental pulp cells (hDPCs) in tricho-dento-osseous (TDO) syndrome.DesignhDPCs were obtained from the healthy premolars, stably-expressing wild-type DLX3 (WT), novel mutant DLX3 (Mu) and control vector (NC) cells were generated using recombinant lentiviruses. The proliferation rates of WT-hDPCs and Mu-hDPCs were measured by CCK8 assay. Odonto-differentiation of hDPCs was assessed by alkaline phosphatase (ALP) activity assay, and mineralization ability was assessed by Alizarin red staining. Odontogenic markers, including DMP-1, DSPP, Nes, ALP, and DLX5, were analyzed using real-time polymerase chain reaction (qPCR). DMP-1 and DSPP expressions were further confirmed by Western blotting.ResultsCCK8 results showed that the novel mutant DLX3 decreased the proliferation rate of hDPCs compared with wild-type DLX3. qPCR showed that the novel mutant DLX3 weakened odontogenic differentiation by downregulating the expression of odontogenic genes. These results were further confirmed by Western blotting and ALP activity assay. Additionally, Alizarin red staining showed that the novel mutant DLX3 decreased the mineralization of hDPCs compared with wild-type DLX3.ConclusionsNovel de novo mutation of DLX3 significantly decreases the proliferation rate and inhibits the odontogenic differentiation and mineralization of hDPCs, suggesting that this novel mutation of DLX3 can influence the dentinogenesis in TDO syndrome.



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Effects of glucocorticoid-induced osteoporosis on bone tissue of rats with experimental periodontitis

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Publication date: Available online 20 January 2017
Source:Archives of Oral Biology
Author(s): Luzia Hermínia Teixeira Sousa, Eveline Valeriano Moura, Ana Larissa Queiroz, Danielle Val, Hellíada Chaves, Mario Lisboa, Flávia Furlaneto, Gerly Anne Brito, Paula Goes
Objective: To evaluate the effects of osteoporosis induced by glucocorticoid (GIOP) on bone tissue of rats with experimental periodontitis (EP).Design48 male Wistar rats divided into groups: Naïve, EP, GIOP and GIOP+EP. Rats of GIOP and GIOP+EP groups received 7mg/kg of dexamethasone intramuscularly once a week for 5 weeks. Following, EP and GIOP+EP groups were subjected to ligature-induced periodontitis. Naïve group experienced no manipulation. After 11 days, the animals were euthanized and left maxillae collected for macroscopic, radiographic, micro-tomographic and microscopic analysis of alveolar bone loss (ABL). Blood samples were collected for determination of bone-specific alkaline phosphatase (BALP) levels and the right femurs were removed for radiographic and biomechanical analysis.ResultsEP caused ABL and reduced BALP levels (p<0,05), but it did not change the architecture or biomechanics of femur, compared to Naïve. GIOP did not cause ABL, but it significantly decreased alveolar bone mineral density (ABMD), bone percentage and trabecular thickness (Tb.Th) and increased alveolar bone porosity (p<0.05) and significantly reduced BALP serum levels, as well as radiographic density and Young's module of femur, compared to Naïve. There was a greater ABL in group GIOP+EP when compared to EP (p<0.05). GIOP+EP caused a greater decrease on ABMD, Tb.Th, bone percentage and increased bone porosity (p<0.05) and also presented a significant reduction in BALP levels (p<0.05), in radiographic density and in Young's module of femur compared to EP (p<0.05).ConclusionsGIOP can potentiate the destructive effects of EP on alveolar bone and alter the systemic bone loss, by promoting bone resorption and reducing osteoblast activity.



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Vascular endothelial growth factor–targeted paclitaxel-loaded liposome microbubbles and inhibition of human epidermoid-2 cell proliferation

ABSTRACT

Background

Vascular endothelial growth factor (VEGF) plays an important role in the formation of capillary blood vessels. The purpose of this study was to evaluate the inhibitory effect of VEGF-targeted paclitaxel (PTX)-loaded liposome microbubbles (VTPLLMs) on the proliferation of human epidermoid (Hep-2) laryngeal squamous cell carcinoma (SCC).

Methods

Six groups were randomly divided. The inhibitory effects on Hep-2 proliferation were assessed by a methylthiazol tetrazolium (MTT) method. The cell cycle distributions were investigated by flow cytometry. The expression variations of VEGF and caspase-3 were compared by Western blotting.

Results

Proliferation of Hep-2 in the VTPLLM+ultrasound group was significantly inhibited, and flow cytometry showed that the Hep-2 cells were significantly blocked at stage G2/M compared with other groups. Moreover, Western blotting showed VEGF expression was downregulated and caspase-3 expression was upregulated.

Conclusion

VTPLLMs can efficiently inhibit tumor cell proliferation and outperform nontargeted microbubbles or PTX. © 2017 Wiley Periodicals, Inc. Head Neck, 2017



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Vascular endothelial growth factor–targeted paclitaxel-loaded liposome microbubbles and inhibition of human epidermoid-2 cell proliferation

ABSTRACT

Background

Vascular endothelial growth factor (VEGF) plays an important role in the formation of capillary blood vessels. The purpose of this study was to evaluate the inhibitory effect of VEGF-targeted paclitaxel (PTX)-loaded liposome microbubbles (VTPLLMs) on the proliferation of human epidermoid (Hep-2) laryngeal squamous cell carcinoma (SCC).

Methods

Six groups were randomly divided. The inhibitory effects on Hep-2 proliferation were assessed by a methylthiazol tetrazolium (MTT) method. The cell cycle distributions were investigated by flow cytometry. The expression variations of VEGF and caspase-3 were compared by Western blotting.

Results

Proliferation of Hep-2 in the VTPLLM+ultrasound group was significantly inhibited, and flow cytometry showed that the Hep-2 cells were significantly blocked at stage G2/M compared with other groups. Moreover, Western blotting showed VEGF expression was downregulated and caspase-3 expression was upregulated.

Conclusion

VTPLLMs can efficiently inhibit tumor cell proliferation and outperform nontargeted microbubbles or PTX. © 2017 Wiley Periodicals, Inc. Head Neck, 2017



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Development and validation of the Speech Reception in Noise (SPRINT) Test

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Publication date: Available online 20 January 2017
Source:Hearing Research
Author(s): Douglas S. Brungart, Brian Walden, Mary Cord, Sandeep Phatak, Sarah M. Theodoroff, Susan Griest, Ken W. Grant
Since 1992, the Speech Recognition in Noise Test, or SPRINT, has been the standard speech-in-noise test for assessing auditory fitness-for-duty of US Army Soldiers with hearing loss. The original SPRINT test consisted of 200 monosyllabic words presented at a Signal-to-Noise Ratio (SNR) of +9 dB in the presence of a six-talker babble noise. Normative data for the test was collected on 319 hearing impaired Soldiers, and a procedure for making recommendations about the disposition of military personnel on the basis of their SPRINT score and their years of experience was developed and implemented as part of US Army policy. In 2013, a new 100-word version of the test was developed that eliminated words that were either too easy or too hard to make meaningful distinctions among hearing impaired listeners. This paper describes the development of the original 200-word SPRINT test, along with a description of the procedure used to reduce the 200-word test to 100 words and the results of a validation study conducted to evaluate how well the shortened 100-word test is able to capture the results from the full 200-word version of the SPRINT.



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Development and validation of the Speech Reception in Noise (SPRINT) Test

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Publication date: Available online 20 January 2017
Source:Hearing Research
Author(s): Douglas S. Brungart, Brian Walden, Mary Cord, Sandeep Phatak, Sarah M. Theodoroff, Susan Griest, Ken W. Grant
Since 1992, the Speech Recognition in Noise Test, or SPRINT, has been the standard speech-in-noise test for assessing auditory fitness-for-duty of US Army Soldiers with hearing loss. The original SPRINT test consisted of 200 monosyllabic words presented at a Signal-to-Noise Ratio (SNR) of +9 dB in the presence of a six-talker babble noise. Normative data for the test was collected on 319 hearing impaired Soldiers, and a procedure for making recommendations about the disposition of military personnel on the basis of their SPRINT score and their years of experience was developed and implemented as part of US Army policy. In 2013, a new 100-word version of the test was developed that eliminated words that were either too easy or too hard to make meaningful distinctions among hearing impaired listeners. This paper describes the development of the original 200-word SPRINT test, along with a description of the procedure used to reduce the 200-word test to 100 words and the results of a validation study conducted to evaluate how well the shortened 100-word test is able to capture the results from the full 200-word version of the SPRINT.



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Chirurgische Indikation und Komplikationsmanagement beim Vestibularisschwannom

Zusammenfassung

Hintergrund

Moderne chirurgische Behandlungskonzepte für Patienten mit Vestibularisschwannomen (VS) setzen ein interdisziplinäres Herangehen sowie das Erkennen und Beherrschen von Komplikationen voraus.

Ziel der Arbeit

Die Arbeit gibt einen Überblick über Indikationen, Möglichkeiten des Funktionserhalts und Komplikationsmanagement bei der chirurgischen Tumorresektion.

Methoden

Aktuelle Behandlungskonzepte und chirurgische Indikationen wurden nach Tumorgröße und -ausdehnung differenziert. Die Häufigkeit wesentlicher Komplikationen wurde aus der Literatur extrahiert. Technische Möglichkeiten zur Vermeidung und Korrektur von Komplikationen wurden aus eigener Erfahrung und nach Literaturbefunden zusammengestellt.

Ergebnisse

Vor allem bei älteren Patienten sind Komplikationen, die nicht die Hirnnerven betreffen, nicht selten. Kleine und mittelgroße, nicht den Fundus und die Fossa cochlearis erreichende Tumoren lassen sich mit guten Chancen auf Hörerhalt vollständig entfernen. Solange sie nicht wachsen, profitieren die Patienten von einer Beobachtung. Große Tumoren sind in chirurgischen Serien im Vergleich zur Prävalenz überrepräsentiert. Die postoperative Fazialisfunktion korreliert mit dem Tumorvolumen. Ein Hörerhalt ist hier nur in seltenen Fällen möglich. Intraoperative elektrophysiologische Verfahren sind eine wichtige Unterstützung beim Funktionserhalt der betroffenen Hirnnerven. Persistierende Fazialisparesen können mit dynamischen und statischen Methoden der Gesichtsreanimation gemildert werden.

Schlussfolgerungen

Mortalität und Morbidität bei der chirurgischen Behandlung der VS halten sich in sehr annehmbaren Grenzen. Das Therapiekonzept sollte dem konkreten Fall individuell angepasst sein, um ein Höchstmaß an Lebensqualität zu sichern.



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Akustische Informationen von Schnarchgeräuschen

Zusammenfassung

Hintergrund

Mehr als ein Drittel aller Menschen schnarchen regelmäßig. Schnarchen ist ein häufiges Begleitsymptom einer obstruktiven Schlafapnoe (OSA) und wirkt zusätzlich störend auf den Bettpartner.

Ziel der Arbeit

Diese Arbeit gibt eine Übersicht über die Historie und den Stand der Forschung hinsichtlich der akustischen Analyse des Schnarchens zur Klassifizierung des OSA-Schweregrads, zur Detektion obstruktiver Ereignisse, zur Messung der Lästigkeit und zur Identifikation des Schallentstehungsorts.

Material und Methoden

Mit Blick auf die genannten Zielsetzungen wurden Recherchen in den Literaturdatenbanken PubMed und IEEE Xplore durchgeführt und aus den Suchergebnissen diejenigen Publikationen ausgewählt, die sich laut Titel und Abstract mit der jeweiligen Zielstellung befassen.

Ergebnisse

Es wurden insgesamt 48 Publikationen zu den genannten Zielstellungen berücksichtigt. Limitierender Faktor vieler Arbeiten ist die geringe Anzahl der Probanden, auf denen die Untersuchungen basieren.

Schlussfolgerung

Jüngere Forschungsergebnisse zeigen vielversprechende Ergebnisse, sodass akustische Analysen in der Zukunft einen Platz im Rahmen der Schlafdiagnostik als Ergänzung der anerkannten Standardverfahren finden können.



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Therapie rückenlagebezogener obstruktiver Schlafapnoe mittels Smartphone-App

Zusammenfassung

Hintergrund

Die rückenlagebezogene obstruktive Schlafapnoe („positional obstructive sleep apnea", POSA) tritt häufig bei der leicht- und mittelgradigen Form der obstruktiven Schlafapnoe (OSA) auf. Zur Therapie werden 2 „smartphone applications" (Apps) angeboten, welche vorgeben, die Rückenlage zu verhindern, indem sie bei auf der Brust fixiertem Smartphone die Rückenlage erkennen und einen Vibrationsalarm auslösen: für Android „Apnea Sleep Position Trainer" und für iOS „SomnoPose – Sleep Position Monitor". Dies soll die Patienten zu einem Wechsel der Schlafposition veranlassen. Diese Apps wurden jedoch bisher nicht systematisch evaluiert.

Methoden

Erwachsenen Patienten mit polysomnographisch gesicherter POSA wurde die Teilnahme an der Studie angeboten. Die POSA wurde hierbei als ein Apnoe-Hypopnoe-Index (AHI) in Rückenlage (RL) >10 mit einem AHI in Seitenlage <10 und einer Verdopplung des AHI in RL definiert. Nach einem Monat erfolgte eine erneute Polysomnographie (PSG), die Compliance (mindestens 4 h/Nacht an 5 von 7 Tagen) wurde nach 6 Monaten telefonisch ermittelt. Als Therapieerfolg galt eine Reduktion der RL auf <10 % der gesamten Schlafzeit sowie auf einen Gesamt-AHI von <10.

Ergebnisse

An der Studie nahmen 57 Patienten teil, 24 Patienten erschienen jedoch nicht zur Kontroll-PSG. Es beendeten 33 Patienten die Studie wie geplant, wovon 25 erfolgreich therapiert wurden. Der Gesamt-AHI der 33 Patienten wurde von 14,5 ± 9,0 auf 9,5 ± 12,6, die Zeit in Rückenlage von 71,1 ± 50,5 min auf 25,4 ± 65,0 min signifikant gesenkt. Die Compliance der dauerhaft versorgten 25 Patienten betrug nach 6 Monaten 79,2 %.

Schlussfolgerung

Beide Smartphone-Apps können die Rückenlage bei POSA-Patienten verhindern und eine mögliche kostengünstige therapeutische Option der POSA darstellen.



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Chirurgische Indikation und Komplikationsmanagement beim Vestibularisschwannom

Zusammenfassung

Hintergrund

Moderne chirurgische Behandlungskonzepte für Patienten mit Vestibularisschwannomen (VS) setzen ein interdisziplinäres Herangehen sowie das Erkennen und Beherrschen von Komplikationen voraus.

Ziel der Arbeit

Die Arbeit gibt einen Überblick über Indikationen, Möglichkeiten des Funktionserhalts und Komplikationsmanagement bei der chirurgischen Tumorresektion.

Methoden

Aktuelle Behandlungskonzepte und chirurgische Indikationen wurden nach Tumorgröße und -ausdehnung differenziert. Die Häufigkeit wesentlicher Komplikationen wurde aus der Literatur extrahiert. Technische Möglichkeiten zur Vermeidung und Korrektur von Komplikationen wurden aus eigener Erfahrung und nach Literaturbefunden zusammengestellt.

Ergebnisse

Vor allem bei älteren Patienten sind Komplikationen, die nicht die Hirnnerven betreffen, nicht selten. Kleine und mittelgroße, nicht den Fundus und die Fossa cochlearis erreichende Tumoren lassen sich mit guten Chancen auf Hörerhalt vollständig entfernen. Solange sie nicht wachsen, profitieren die Patienten von einer Beobachtung. Große Tumoren sind in chirurgischen Serien im Vergleich zur Prävalenz überrepräsentiert. Die postoperative Fazialisfunktion korreliert mit dem Tumorvolumen. Ein Hörerhalt ist hier nur in seltenen Fällen möglich. Intraoperative elektrophysiologische Verfahren sind eine wichtige Unterstützung beim Funktionserhalt der betroffenen Hirnnerven. Persistierende Fazialisparesen können mit dynamischen und statischen Methoden der Gesichtsreanimation gemildert werden.

Schlussfolgerungen

Mortalität und Morbidität bei der chirurgischen Behandlung der VS halten sich in sehr annehmbaren Grenzen. Das Therapiekonzept sollte dem konkreten Fall individuell angepasst sein, um ein Höchstmaß an Lebensqualität zu sichern.



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Akustische Informationen von Schnarchgeräuschen

Zusammenfassung

Hintergrund

Mehr als ein Drittel aller Menschen schnarchen regelmäßig. Schnarchen ist ein häufiges Begleitsymptom einer obstruktiven Schlafapnoe (OSA) und wirkt zusätzlich störend auf den Bettpartner.

Ziel der Arbeit

Diese Arbeit gibt eine Übersicht über die Historie und den Stand der Forschung hinsichtlich der akustischen Analyse des Schnarchens zur Klassifizierung des OSA-Schweregrads, zur Detektion obstruktiver Ereignisse, zur Messung der Lästigkeit und zur Identifikation des Schallentstehungsorts.

Material und Methoden

Mit Blick auf die genannten Zielsetzungen wurden Recherchen in den Literaturdatenbanken PubMed und IEEE Xplore durchgeführt und aus den Suchergebnissen diejenigen Publikationen ausgewählt, die sich laut Titel und Abstract mit der jeweiligen Zielstellung befassen.

Ergebnisse

Es wurden insgesamt 48 Publikationen zu den genannten Zielstellungen berücksichtigt. Limitierender Faktor vieler Arbeiten ist die geringe Anzahl der Probanden, auf denen die Untersuchungen basieren.

Schlussfolgerung

Jüngere Forschungsergebnisse zeigen vielversprechende Ergebnisse, sodass akustische Analysen in der Zukunft einen Platz im Rahmen der Schlafdiagnostik als Ergänzung der anerkannten Standardverfahren finden können.



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Therapie rückenlagebezogener obstruktiver Schlafapnoe mittels Smartphone-App

Zusammenfassung

Hintergrund

Die rückenlagebezogene obstruktive Schlafapnoe („positional obstructive sleep apnea", POSA) tritt häufig bei der leicht- und mittelgradigen Form der obstruktiven Schlafapnoe (OSA) auf. Zur Therapie werden 2 „smartphone applications" (Apps) angeboten, welche vorgeben, die Rückenlage zu verhindern, indem sie bei auf der Brust fixiertem Smartphone die Rückenlage erkennen und einen Vibrationsalarm auslösen: für Android „Apnea Sleep Position Trainer" und für iOS „SomnoPose – Sleep Position Monitor". Dies soll die Patienten zu einem Wechsel der Schlafposition veranlassen. Diese Apps wurden jedoch bisher nicht systematisch evaluiert.

Methoden

Erwachsenen Patienten mit polysomnographisch gesicherter POSA wurde die Teilnahme an der Studie angeboten. Die POSA wurde hierbei als ein Apnoe-Hypopnoe-Index (AHI) in Rückenlage (RL) >10 mit einem AHI in Seitenlage <10 und einer Verdopplung des AHI in RL definiert. Nach einem Monat erfolgte eine erneute Polysomnographie (PSG), die Compliance (mindestens 4 h/Nacht an 5 von 7 Tagen) wurde nach 6 Monaten telefonisch ermittelt. Als Therapieerfolg galt eine Reduktion der RL auf <10 % der gesamten Schlafzeit sowie auf einen Gesamt-AHI von <10.

Ergebnisse

An der Studie nahmen 57 Patienten teil, 24 Patienten erschienen jedoch nicht zur Kontroll-PSG. Es beendeten 33 Patienten die Studie wie geplant, wovon 25 erfolgreich therapiert wurden. Der Gesamt-AHI der 33 Patienten wurde von 14,5 ± 9,0 auf 9,5 ± 12,6, die Zeit in Rückenlage von 71,1 ± 50,5 min auf 25,4 ± 65,0 min signifikant gesenkt. Die Compliance der dauerhaft versorgten 25 Patienten betrug nach 6 Monaten 79,2 %.

Schlussfolgerung

Beide Smartphone-Apps können die Rückenlage bei POSA-Patienten verhindern und eine mögliche kostengünstige therapeutische Option der POSA darstellen.



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ERCP Cannulation in the Difficult Duct: Which technique should you pull out of your bag?

Golf and endoscopic retrograde cholangiopancreaticography (ERCP) share a commonality where the highs of the successes are balanced by the lows of the frustrations. ERCP cannulation is one of the most difficult maneuvers in gastrointestinal endoscopy and is a requirement for the procedure's therapeutic benefit. As such, many different techniques have been developed to facilitate cannulation. The mission of the procedure is to provide access to the biliary or pancreatic duct typically with a guidewire, which can then be utilized as a platform for therapeutic and diagnostic procedures. An inherent challenge in ERCP is that the operator must make use of a two-dimensional imaging surrogate through fluoroscopy and navigate the three-dimensional biliary or pancreatic duct pathway.

This article is protected by copyright. All rights reserved.



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Oticon Medical's Ponto 3 Sound Processor Family: Proven Technology to Make Listening Easier

The Ponto 3 Family of sound processors are the definition of power. In fact, they are the most powerful family of abutment-level sound processors available.

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Oticon Medical's Ponto 3 Sound Processor Family: Proven Technology to Make Listening Easier

The Ponto 3 Family of sound processors are the definition of power. In fact, they are the most powerful family of abutment-level sound processors available.

http://ift.tt/2jww8e3

Fate of the Coronoid Process following Coronoidotomy and its Effect on the Inter-Incisal Opening– A Clinical and Radiological Assessment

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Publication date: Available online 20 January 2017
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Sujata Mohanty, Sanchaita Kohli, Jitender Dabas, Rudra Deo Kumar, Ranjeet Bodh, Sandeep Yadav
PurposeCoronoidotomy is used to treat several conditions, including coronoid hyperplasia and TMJ ankylosis. The stability of the outcome is, however, considered questionable due to risk of reattachment of the coronoid process. The current study aims to radiographically and clinically evaluate the long-term anatomical and physiological outcome following coronoidotomy.Methods25 coronoidotomies were performed as an additional maneuver to relieve trismus in 17 unilateral TMJ ankylosis patients following ankylosis release. Radiological evaluation was done immediately and 1 year post-operatively using OPG and CT to assess changes at the coronoidotomy site. Clinical assessment included measuring the inter-incisal distance at 1, 3, 6 and 12 month post-operative visits.ResultsA sharp osteotomy margin with a 3-10 mm gap between the ramus and coronoid process was observed immediately post-operatively in all cases. After one year, 23 cases (92%) showed partial (n=5) or complete (n=18) osseous union to the mandibular ramus, while in 2 cases, no evidence of fusion was observed radiographically. Mean inter-incisal opening achieved at one year was 33 mm.ConclusionCoronoidotomy, is an effective, but more straightforward adjunct to arthroplasty than coronoidectomy in management of TMJ ankylosis, with achievement and maintenance of adequate post-operative mouth opening.



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Multiple Calcifying Hyperplastic Dental Follicles: A Case Report and Literature Review

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Publication date: Available online 20 January 2017
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Rajiv S. Desai, Yameen N.A. Momin, Shivani Bansal, Freny R. Karjodkar




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Oral rehabilitation of a patient with ectodermal dysplasia treated with fresh frozen bone allografts and computer-guided implant placement: a clinical case report

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Publication date: Available online 20 January 2017
Source:Journal of Oral and Maxillofacial Surgery
Author(s): Carlo Maiorana, Pier Paolo Poli, Carlo Poggio, Paola Barbieri, Mario Beretta
Ectodermal dysplasia (ED) is an inherited disorder characterized by abnormality of ectodermally derived structures. A recurrent oral finding is oligodontia, which in turn leads to a severely hypotrophic alveolar process with typical knife-edge morphology and adverse ridge contours. This unfavorable anatomy can seriously hamper proper implant placement. Fresh frozen bone (FFB) allografts have been recently proposed to augment the residual bone volume for implant placement purposes; however, scientific evidence concerning the use of FFB to treat ED patients is absent. Similarly, data reporting computer-aided template-guided implant placement in medically compromised patients are limited. Thus, the purpose of this report is to illustrate the oral rehabilitation of a female patient affected by ED and treated with appositional FFB block grafts and consecutive computer-guided flapless implant placement in a two-stage procedure. Fixed implant-supported dental prostheses were finally delivered to the patient which improved her self-esteem and quality of life. During the follow-up recall 1 year after the prosthetic loading, the clinical examination revealed healthy peri-implant soft tissues with no signs of bleeding on probing or pathological probing depths. The panoramic radiograph confirmed the clinical stability of the result. Peri-implant marginal bone levels were radiographically stable with neither pathological bone loss at the mesial and distal aspect of each implant nor peri-implant radiolucency. Within the limitations of the present report, the use of FFB allografts in association with computer-aided flapless implant surgery might be considered a useful technique in patients affected by ED.



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The immunoglobulin superfamily member CD200R identifies cells involved in type 2 immune responses

Abstract

Background

The pathology of allergic diseases involves type 2 immune cells, such as Th2, ILC2, and basophils exerting their effect by production of IL-4, IL-5, and IL-13. However, surface receptors that are specifically expressed on type 2 immune cells are less well documented. The aim of this investigation was to identify surface markers associated with type 2 inflammation.

Methods

Naïve human CD4+ T-cells were short-term activated in the presence or absence of IL-4, and analysed for expression of >300 cell-surface proteins. Ex vivo isolated PBMCs from peanut and non-allergic allergic subjects, were stimulated (14-16h) with peanut extract to detect peanut-specific CD4+CD154+T-cells. Biopsies were obtained for transcriptomic analysis from healthy controls and patients with extrinsic or intrinsic atopic dermatitis and psoriasis.

Results

Expression analysis of >300 surface proteins enabled identification of IL-4 up-regulated surface proteins, such as CD90, CD108, CD109, and CD200R (CD200R1). Additional analysis of in vitro differentiated Th0, Th1, and Th2 cultures, identified CD200R as up-regulated on Th2 cells. From ex vivo isolated PBMCs, we found high expression of CD200R on Th2 and ILC2 cells and basophils. In peanut-allergic subjects the peanut-specific Th2 (CD154+CRTh2+) cells expressed more CD200R than the non-allergen specific Th2 (CD154-CRTh2+) cells. Moreover, co-staining of CD161 and CD200R identified peanut-specific highly differentiated IL-4+IL-5+ Th2 cells. Finally, transcriptomic analysis revealed up-regulation of CD200R in lesional skin from subjects with an extrinsic atopic dermatitis phenotype compared to healthy skin.

Conclusion

These results indicate that CD200R expression strongly correlates with Th2 pathology; though, the mechanism is as yet elusive.

This article is protected by copyright. All rights reserved.



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Plantarflexor passive-elastic properties related to BMI and walking performance in older women

Publication date: March 2017
Source:Gait & Posture, Volume 53
Author(s): Dain P. LaRoche
The objective of this study was to examine the influence of BMI on the passive-elastic properties of the ankle plantarflexors in older women. Twenty-three women, 65–80 yr, were separated into normal weight (NW, BMI <25.0kgm−2, n=11) and overweight-obese (OW, BMI≥25.0kgm−2, n=12) groups. Resistive torque of the ankle plantarflexors was recorded on an isokinetic dynamometer by passively moving the ankle into dorsiflexion. Stiffness, work absorption, and hysteresis were calculated across an ankle dorsiflexion angle of 10–15°. Maximal plantarflexor strength was assessed, then participants walked at maximal speed on an instrumented gait analysis treadmill while muscle activation (EMG) was recorded. Plantarflexor stiffness was 34% lower in OW (26.4±12.7Nmrad−1) than NW (40.0±15.7Nmrad−1, p=0.032). Neither work absorption nor hysteresis were different between OW and NW. Stiffness per kg was positively correlated to strength (r=0.66, p<0.001), peak vertical ground reaction force during walking (r=0.72, p<0.001), weight acceptance rate of force (r=0.51, p=0.007), push-off rate of force (r=0.41, p=0.026), maximal speed (r=0.61, p=0.001), and inversely correlated to BMI (r=−0.61, p=0.001), and peak plantarflexor EMG (r=−0.40, p=0.046). Older women who are OW have low plantarflexor stiffness, which may limit propulsive forces during walking and necessitate greater muscle activation for active force generation.



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Pulling a school trolley: A good kinematic option for children

Publication date: March 2017
Source:Gait & Posture, Volume 53
Author(s): Eva Orantes-Gonzalez, Jose Heredia-Jimenez
This study analyzed the kinematic gait parameters associated with pulling a school trolley with different loads and the effects of the type of packing device user (backpack vs. trolley) and body side (loadedunloaded). Methods Fifty-three elementary subjects walked at a selfselected speed under four experimental conditions: without a trolley and pulling a trolley with 10%, 15% and 20% of the subject́s body weight (BW). Averages and standard deviations of spatiotemporal gait parameters and 3D kinematics of the lower limbs and thorax were obtained for the loaded and unloaded sides of the body. Results Spatiotemporal gait parameters were affected by pulling a trolley with a load of 20% BW, although the changes were not important (decrease of 0.02 units in velocity and stride length, decrease of 0.32% in single support and increase of 0.31% in double support). In the 3D kinematics analysis, the main effects of trolley load were observed in the thorax, with increased flexion as the load increased, and in the pelvis between baseline and 10%–15% BW. No interaction was found between kinematic parameters and the type of packing device user (trolley or backpack). Considering the loaded and unloaded sides of the body, the transverse plane of the thorax was the main site affected by the asymmetrical task. Conclusion Although some of the analyzed kinematic parameters were influenced by the use of a school trolley, the adaptations were minimal, and trolleys could be considered a good option for use in the transportation of school supplies



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Carrying asymmetric loads during stair negotiation

Publication date: March 2017
Source:Gait & Posture, Volume 53
Author(s): Junsig Wang, Jason Gillette
Individuals often carry items in one hand instead of both hands during activities of daily living. The combined effects of carrying asymmetric loads and stair negotiation may create even higher demands on the low back and lower extremity. The purpose of this study was to investigate the effect of symmetric and asymmetric loading conditions on L5/S1 and lower extremity moments during stair negotiation. Twenty-two college students performed stair ascent and stair descent on a three-step staircase (step height 18.5cm, tread depth 29.5cm) at preferred pace under five load conditions: no load, 10% body weight (BW) unilateral load, 20% BW unilateral load, 10% BW bilateral load, and 20% BW bilateral load. Video cameras and force platforms were used to collect kinematic and kinetic data. Inverse dynamics was used to calculate frontal plane moments for the L5/S1 and lower extremity. A 20% BW unilateral load resulted in significantly higher peak L5/S1 lateral bending, hip abduction, and external knee varus moments than nearly all other loading conditions during stair ascent and stair descent. Therefore, we suggest potential benefits when carrying symmetrical loads as compared to an asymmetric load in order to decrease the frontal joint moments, particularly at 20% BW load.



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Exploring the Missing Links between Dietary Habits and Diseases.

Exploring the Missing Links between Dietary Habits and Diseases.

IEEE Trans Nanobioscience. 2017 Jan 16;:

Authors: Bhattacharyya M, Maity S, Bandyopadhyay S

Abstract
Disease dietomics is an emerging area of systems biology that attempts to explore the connections between the dietary habits and diseases. Some of the topical studies highlight that foods might have different impacts over an organism either in progressing a disease (negative association) or in fighting against it (positive association). The association of foods with different diseases can be put together to build a network that might provide a global view of the entire system. Again, such disease-food networks might emerge in a more complex form while considering the disease subtypes individually. Some foods might have positive association with a particular subtype of a disease, whereas it might have no association or negative association with another subtype of the same disease. Therefore, the subtypes might have completely different network patterns. On the other hand, the same food may be helpful for a disease and harmful for another disease or even for a subtype. Analyzing such disease-food networks in different forms might give us important information about the relations between different diseases. In this study, we have analyzed a large-scale disease-food network comprising 162 different diseases and 455 types of foods for gaining knowledge about the connection between these diseases and their subtypes. We have measured the similarity between diseases based on their patterns of association with foods. In addition to observing a high similarity between several disease sub types, particularly for cancer, we have found strong relations between constipation-dysphagia and cancer-cardiovascular disease, which are rarely known. Tendency of occurrence of different diseases can be predicted based on such information.

PMID: 28103559 [PubMed - as supplied by publisher]



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History of the Use of Esophageal Stent in Management of Dysphagia and Its Improvement Over the Years.

Related Articles

History of the Use of Esophageal Stent in Management of Dysphagia and Its Improvement Over the Years.

Dysphagia. 2017 Jan 18;:

Authors: Dua KS

Abstract
The art and science of using stents to treat dysphagia and seal fistula, leaks and perforations has been evolving. Lessons learnt from the deficiencies of previous models led to several improvements making stent deployment easier, and with some designs, it was also possible to remove the stents if needed. With these improvements, besides malignant dysphagia, newer indications for using stents emerged. Unfortunately, despite several decades of evolution, as yet, there is no perfect stent that "fits all." This article is an overview of how this evolution process happened and where we are currently with using stents to manage patients with dysphagia and with other esophageal disorders.

PMID: 28101666 [PubMed - as supplied by publisher]



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Feasibility and Psychometric Properties of the Adjusted DSWAL-QoL Questionnaire for Dysphagic Patients with Additional Language and/or Cognitive Impairment: Part I.

Related Articles

Feasibility and Psychometric Properties of the Adjusted DSWAL-QoL Questionnaire for Dysphagic Patients with Additional Language and/or Cognitive Impairment: Part I.

Dysphagia. 2017 Jan 18;:

Authors: Simpelaere IS, Vanderwegen J, Wouters K, De Bodt M, Van Nuffelen G

Abstract
The Swallowing Quality-of-Life questionnaire (SWAL-QoL) is considered the gold standard for assessing health-related quality of life in people with dysphagia. However, many dysphagic patients struggle to complete this questionnaire because of additional functional sequelae such as language impairment and cognitive disorders. In this study, we sought to develop an adjusted Dutch version of the SWAL-QoL (aDSWALQoL) and to evaluate its psychometric properties and feasibility compared with the original questionnaire. We developed the aDSWAL-QoL based on recommendations from previous literature. The feasibility, internal consistency, test-retest reliability, and criterion validity of the aDSWAL-QoL were evaluated in 78 dysphagic patients, among whom 43 had additional language and/or cognitive impairments (DysLC). Statistical analyses were performed using SPSS 20.0. The aDSWAL-QoL had a higher degree of feasibility for the DysLC group. We obtained high Cronbach's α coefficients for total scale and for almost all subscales. Total aDSWAL-QoL scores showed excellent testretest agreement and good criterion validity with respect to the DSWAL-QoL. Almost all subscales showed significantly moderate to good test-retest agreement and criterion validity. However, the psychometric properties of the 'Food selection' subscale were inadequate. The aDSWAL-QoL is a feasible, reliable, and valid tool for use with DysLC patients. Conversion of the aDSWAL-QoL into an audio computer-assisted self-administered format should be investigated. The construct validity of the aDSWAL-QoL will be evaluated in a separate report.

PMID: 28101665 [PubMed - as supplied by publisher]



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History and Evolution of the Barium Swallow for Evaluation of the Pharynx and Esophagus.

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History and Evolution of the Barium Swallow for Evaluation of the Pharynx and Esophagus.

Dysphagia. 2017 Jan 18;:

Authors: Levine MS, Rubesin SE

Abstract
This article reviews the history of the barium swallow from its early role in radiology to its current status as an important diagnostic test in modern radiology practice. Though a variety of diagnostic procedures can be performed to evaluate patients with dysphagia or other pharyngeal or esophageal symptoms, the barium study has evolved into a readily available, non-invasive, and cost-effective technique that can facilitate the selection of additional diagnostic tests and guide decisions about medical, endoscopic, or surgical management. This article focuses on the evolution of fluoroscopic equipment, radiography, and contrast media for evaluating the pharynx and esophagus, the importance of understanding pharyngoesophageal relationships, and major advances that have occurred in the radiologic diagnosis of select esophageal diseases, including gastroesophageal reflux disease, infectious esophagitis, eosinophilic esophagitis, esophageal carcinoma, and esophageal motility disorders.

PMID: 28101664 [PubMed - as supplied by publisher]



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History of Fiberoptic Endoscopic Evaluation of Swallowing for Evaluation and Management of Pharyngeal Dysphagia: Changes over the Years.

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History of Fiberoptic Endoscopic Evaluation of Swallowing for Evaluation and Management of Pharyngeal Dysphagia: Changes over the Years.

Dysphagia. 2017 Jan 18;:

Authors: Langmore SE

PMID: 28101663 [PubMed - as supplied by publisher]



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Gastric antral webs in adults: A case series characterizing their clinical presentation and management in the modern endoscopic era.

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Gastric antral webs in adults: A case series characterizing their clinical presentation and management in the modern endoscopic era.

World J Gastrointest Endosc. 2017 Jan 16;9(1):19-25

Authors: Morales SJ, Nigam N, Chalhoub WM, Abdelaziz DI, Lewis JH, Benjamin SB

Abstract
AIM: To investigate the current management of gastric antral webs (GAWs) among adults and identify optimal endoscopic and/or surgical management for these patients.
METHODS: We reviewed our endoscopy database seeking to identify patients in whom a GAW was visualized among 24640 esophagogastroduodenoscopies (EGD) over a seven-year period (2006-2013) at a single tertiary care center. The diagnosis of GAW was suspected during EGD if aperture size of the antrum did not vary with peristalsis or if a "double bulb" sign was present on upper gastrointestinal series. Confirmation of the diagnosis was made by demonstrating a normal pylorus distal to the GAW.
RESULTS: We identified 34 patients who met our inclusion criteria (incidence 0.14%). Of these, five patients presented with gastric outlet obstruction (GOO), four of whom underwent repeated sequential balloon dilations and/or needle-knife incisions with steroid injection for alleviation of GOO. The other 29 patients were incidentally found to have a non-obstructing GAW. Age at diagnosis ranged from 30-87 years. Non-obstructing GAWs are mostly incidental findings. The most frequently observed symptom prompting endoscopic work-up was refractory gastroesophageal reflux (n = 24, 70.6%) followed by abdominal pain (n = 11, 33.4%), nausea and vomiting (n = 9, 26.5%), dysphagia (n = 6, 17.6%), unexplained weight loss, (n = 4, 11.8%), early satiety (n = 4, 11.8%), and melena of unclear etiology (n = 3, 8.82%). Four of five GOO patients were treated with balloon dilation (n = 4), four-quadrant needle-knife incision (n = 3), and triamcinolone injection (n = 2). Three of these patients required repeat intervention. One patient had a significant complication of perforation after needle-knife incision.
CONCLUSION: Endoscopic intervention for GAW using balloon dilation or needle-knife incision is generally safe and effective in relieving symptoms, however repeat treatment may be needed and a risk of perforation exists with thermal therapies.

PMID: 28101304 [PubMed - in process]



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A Rare Cause of Dysphagia to Remember: Calcific Tendinitis of the Longus Colli Muscle.

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A Rare Cause of Dysphagia to Remember: Calcific Tendinitis of the Longus Colli Muscle.

Case Rep Gastroenterol. 2016 Sep-Dec;10(3):755-759

Authors: Colella DM, Calderón Sandoval F, Powers DW, Patel N, Sobrado J

Abstract
Longus colli tendinitis (LCT) is an acute inflammatory condition with symptoms typically consisting of acute neck pain and stiffness with or without dysphagia. Once more severe etiologies for these symptoms are ruled out, this self-limiting condition usually resolves spontaneously with nonsteroidal anti-inflammatory drugs and corticosteroids. We present a case of LCT that presented as acute neck pain, dysphagia, and odynophagia that rapidly resolved once diagnosed and treated with anti-inflammatory agents. Though exceedingly rare, LCT must be considered in the differential diagnosis of acute neck pain, dysphagia, and odynophagia when more common etiologies do not correlate with the clinical presentation.

PMID: 28100997 [PubMed]



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From Reflux Esophagitis to Esophageal Adenocarcinoma.

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From Reflux Esophagitis to Esophageal Adenocarcinoma.

Dig Dis. 2016;34(5):483-90

Authors: Souza RF

Abstract
Reflux esophagitis causes Barrett's metaplasia, an abnormal esophageal mucosa predisposed to adenocarcinoma. Medical therapy for reflux esophagitis focuses on decreasing gastric acid production with proton pump inhibitors. We have reported that reflux esophagitis in a rat model develops from a cytokine-mediated inflammatory injury, not from a caustic chemical (acid) injury. In this model, refluxed acid and bile stimulate the release of inflammatory cytokines from esophageal squamous cells, recruiting lymphocytes first to the submucosa and later to the luminal surface. Emerging studies on acute reflux esophagitis in humans support this new concept, suggesting that reflux-induced cytokine release may be a future target for medical therapies. Sometimes, reflux esophagitis heals with Barrett's metaplasia, a process facilitated by reflux-related nitric oxide (NO) production and Sonic Hedgehog (Hh) secretion by squamous cells. We have shown that NO reduces expression of genes that promote a squamous cell phenotype, while Hh signaling induces genes that mediate the development of the columnar cell phenotypes of Barrett's metaplasia. Agents targeting esophageal NO production or Hh signaling conceivably could prevent the development of Barrett's esophagus. Persistent reflux promotes cancer in Barrett's metaplasia. We have reported that acid and bile salts induce DNA damage in Barrett's cells. Bile salts also cause NF-x03BA;B activation in Barrett's cells, enabling them to resist apoptosis in the setting of DNA damage and likely contributing to carcinogenesis. Oral treatment with ursodeoxycholic acid prevents the esophageal DNA damage and NF-x03BA;B activation induced by toxic bile acids. Altering bile acid composition might be another approach to cancer prevention.

PMID: 27331918 [PubMed - indexed for MEDLINE]



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Evaluation of the Patient with Nasal Obstruction.

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Evaluation of the Patient with Nasal Obstruction.

Facial Plast Surg. 2016 Feb;32(1):3-8

Authors: Recker C, Hamilton GS

Abstract
Nasal obstruction is often multifactorial and knowledge of the contributing factors is critical to appropriate evaluation, diagnosis, and execution of a treatment plan. Recognizing and appropriately managing all components of nasal obstruction will increase the likelihood of symptomatic improvement and patient satisfaction.

PMID: 26862957 [PubMed - indexed for MEDLINE]



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Plantarflexor passive-elastic properties related to BMI and walking performance in older women

Publication date: March 2017
Source:Gait & Posture, Volume 53
Author(s): Dain P. LaRoche
The objective of this study was to examine the influence of BMI on the passive-elastic properties of the ankle plantarflexors in older women. Twenty-three women, 65–80 yr, were separated into normal weight (NW, BMI <25.0kgm−2, n=11) and overweight-obese (OW, BMI≥25.0kgm−2, n=12) groups. Resistive torque of the ankle plantarflexors was recorded on an isokinetic dynamometer by passively moving the ankle into dorsiflexion. Stiffness, work absorption, and hysteresis were calculated across an ankle dorsiflexion angle of 10–15°. Maximal plantarflexor strength was assessed, then participants walked at maximal speed on an instrumented gait analysis treadmill while muscle activation (EMG) was recorded. Plantarflexor stiffness was 34% lower in OW (26.4±12.7Nmrad−1) than NW (40.0±15.7Nmrad−1, p=0.032). Neither work absorption nor hysteresis were different between OW and NW. Stiffness per kg was positively correlated to strength (r=0.66, p<0.001), peak vertical ground reaction force during walking (r=0.72, p<0.001), weight acceptance rate of force (r=0.51, p=0.007), push-off rate of force (r=0.41, p=0.026), maximal speed (r=0.61, p=0.001), and inversely correlated to BMI (r=−0.61, p=0.001), and peak plantarflexor EMG (r=−0.40, p=0.046). Older women who are OW have low plantarflexor stiffness, which may limit propulsive forces during walking and necessitate greater muscle activation for active force generation.



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Pulling a school trolley: A good kinematic option for children

Publication date: March 2017
Source:Gait & Posture, Volume 53
Author(s): Eva Orantes-Gonzalez, Jose Heredia-Jimenez
This study analyzed the kinematic gait parameters associated with pulling a school trolley with different loads and the effects of the type of packing device user (backpack vs. trolley) and body side (loadedunloaded). Methods Fifty-three elementary subjects walked at a selfselected speed under four experimental conditions: without a trolley and pulling a trolley with 10%, 15% and 20% of the subject́s body weight (BW). Averages and standard deviations of spatiotemporal gait parameters and 3D kinematics of the lower limbs and thorax were obtained for the loaded and unloaded sides of the body. Results Spatiotemporal gait parameters were affected by pulling a trolley with a load of 20% BW, although the changes were not important (decrease of 0.02 units in velocity and stride length, decrease of 0.32% in single support and increase of 0.31% in double support). In the 3D kinematics analysis, the main effects of trolley load were observed in the thorax, with increased flexion as the load increased, and in the pelvis between baseline and 10%–15% BW. No interaction was found between kinematic parameters and the type of packing device user (trolley or backpack). Considering the loaded and unloaded sides of the body, the transverse plane of the thorax was the main site affected by the asymmetrical task. Conclusion Although some of the analyzed kinematic parameters were influenced by the use of a school trolley, the adaptations were minimal, and trolleys could be considered a good option for use in the transportation of school supplies



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Carrying asymmetric loads during stair negotiation

Publication date: March 2017
Source:Gait & Posture, Volume 53
Author(s): Junsig Wang, Jason Gillette
Individuals often carry items in one hand instead of both hands during activities of daily living. The combined effects of carrying asymmetric loads and stair negotiation may create even higher demands on the low back and lower extremity. The purpose of this study was to investigate the effect of symmetric and asymmetric loading conditions on L5/S1 and lower extremity moments during stair negotiation. Twenty-two college students performed stair ascent and stair descent on a three-step staircase (step height 18.5cm, tread depth 29.5cm) at preferred pace under five load conditions: no load, 10% body weight (BW) unilateral load, 20% BW unilateral load, 10% BW bilateral load, and 20% BW bilateral load. Video cameras and force platforms were used to collect kinematic and kinetic data. Inverse dynamics was used to calculate frontal plane moments for the L5/S1 and lower extremity. A 20% BW unilateral load resulted in significantly higher peak L5/S1 lateral bending, hip abduction, and external knee varus moments than nearly all other loading conditions during stair ascent and stair descent. Therefore, we suggest potential benefits when carrying symmetrical loads as compared to an asymmetric load in order to decrease the frontal joint moments, particularly at 20% BW load.



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A novel dominant GJB2 (DFNA3) mutation in a Chinese family.

A novel dominant GJB2 (DFNA3) mutation in a Chinese family.

Sci Rep. 2017 Jan 19;7:34425

Authors: Wang H, Wu K, Yu L, Xie L, Xiong W, Wang D, Guan J, Wang Q

Abstract
To decipher the phenotype and genotype of a Chinese family with autosomal dominant non-syndromic hearing loss (ADNSHL) and a novel dominant missense mutation in the GJB2 gene (DFNA3), mutation screening of GJB2 was performed on the propositus from a five-generation ADNSHL family through polymerase chain reaction amplification and Sanger sequencing. The candidate variation and the co-segregation of the phenotype were verified in all ascertained family members. Targeted genes capture and next-generation sequencing (NGS) were performed to explore additional genetic variations. We identified the novel GJB2 mutation c.524C > A (p.P175H), which segregated with high frequency and was involved in progressive sensorineural hearing loss. One subject with an additional c.235delC mutation showed a more severe phenotype than did the other members with single GJB2 dominant variations. Four patients diagnosed with noise-induced hearing loss did not carry this mutation. No other pathogenic variations or modifier genes were identified by NGS. In conclusion, a novel missense mutation in GJB2 (DFNA3), affecting the second extracellular domain of the protein, was identified in a family with ADNSHL.

PMID: 28102197 [PubMed - in process]



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Loss of Myh14 Increases Susceptibility to Noise-Induced Hearing Loss in CBA/CaJ Mice.

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Loss of Myh14 Increases Susceptibility to Noise-Induced Hearing Loss in CBA/CaJ Mice.

Neural Plast. 2016;2016:6720420

Authors: Fu X, Zhang L, Jin Y, Sun X, Zhang A, Wen Z, Zhou Y, Xia M, Gao J

Abstract
MYH14 is a member of the myosin family, which has been implicated in many motile processes such as ion-channel gating, organelle translocation, and the cytoskeleton rearrangement. Mutations in MYH14 lead to a DFNA4-type hearing impairment. Further evidence also shows that MYH14 is a candidate noise-induced hearing loss (NIHL) susceptible gene. However, the specific roles of MYH14 in auditory function and NIHL are not fully understood. In the present study, we used CRISPR/Cas9 technology to establish a Myh14 knockout mice line in CBA/CaJ background (now referred to as Myh14(-/-) mice) and clarify the role of MYH14 in the cochlea and NIHL. We found that Myh14(-/-) mice did not exhibit significant hearing loss until five months of age. In addition, Myh14(-/-) mice were more vulnerable to high intensity noise compared to control mice. More significant outer hair cell loss was observed in Myh14(-/-) mice than in wild type controls after acoustic trauma. Our findings suggest that Myh14 may play a beneficial role in the protection of the cochlea after acoustic overstimulation in CBA/CaJ mice.

PMID: 28101381 [PubMed - in process]



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A novel dominant GJB2 (DFNA3) mutation in a Chinese family.

A novel dominant GJB2 (DFNA3) mutation in a Chinese family.

Sci Rep. 2017 Jan 19;7:34425

Authors: Wang H, Wu K, Yu L, Xie L, Xiong W, Wang D, Guan J, Wang Q

Abstract
To decipher the phenotype and genotype of a Chinese family with autosomal dominant non-syndromic hearing loss (ADNSHL) and a novel dominant missense mutation in the GJB2 gene (DFNA3), mutation screening of GJB2 was performed on the propositus from a five-generation ADNSHL family through polymerase chain reaction amplification and Sanger sequencing. The candidate variation and the co-segregation of the phenotype were verified in all ascertained family members. Targeted genes capture and next-generation sequencing (NGS) were performed to explore additional genetic variations. We identified the novel GJB2 mutation c.524C > A (p.P175H), which segregated with high frequency and was involved in progressive sensorineural hearing loss. One subject with an additional c.235delC mutation showed a more severe phenotype than did the other members with single GJB2 dominant variations. Four patients diagnosed with noise-induced hearing loss did not carry this mutation. No other pathogenic variations or modifier genes were identified by NGS. In conclusion, a novel missense mutation in GJB2 (DFNA3), affecting the second extracellular domain of the protein, was identified in a family with ADNSHL.

PMID: 28102197 [PubMed - in process]



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Loss of Myh14 Increases Susceptibility to Noise-Induced Hearing Loss in CBA/CaJ Mice.

Related Articles

Loss of Myh14 Increases Susceptibility to Noise-Induced Hearing Loss in CBA/CaJ Mice.

Neural Plast. 2016;2016:6720420

Authors: Fu X, Zhang L, Jin Y, Sun X, Zhang A, Wen Z, Zhou Y, Xia M, Gao J

Abstract
MYH14 is a member of the myosin family, which has been implicated in many motile processes such as ion-channel gating, organelle translocation, and the cytoskeleton rearrangement. Mutations in MYH14 lead to a DFNA4-type hearing impairment. Further evidence also shows that MYH14 is a candidate noise-induced hearing loss (NIHL) susceptible gene. However, the specific roles of MYH14 in auditory function and NIHL are not fully understood. In the present study, we used CRISPR/Cas9 technology to establish a Myh14 knockout mice line in CBA/CaJ background (now referred to as Myh14(-/-) mice) and clarify the role of MYH14 in the cochlea and NIHL. We found that Myh14(-/-) mice did not exhibit significant hearing loss until five months of age. In addition, Myh14(-/-) mice were more vulnerable to high intensity noise compared to control mice. More significant outer hair cell loss was observed in Myh14(-/-) mice than in wild type controls after acoustic trauma. Our findings suggest that Myh14 may play a beneficial role in the protection of the cochlea after acoustic overstimulation in CBA/CaJ mice.

PMID: 28101381 [PubMed - in process]



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Music interventions for acquired brain injury.

Music interventions for acquired brain injury.

Cochrane Database Syst Rev. 2017 Jan 20;1:CD006787

Authors: Magee WL, Clark I, Tamplin J, Bradt J

Abstract
BACKGROUND: Acquired brain injury (ABI) can result in impairments in motor function, language, cognition, and sensory processing, and in emotional disturbances, which can severely reduce a survivor's quality of life. Music interventions have been used in rehabilitation to stimulate brain functions involved in movement, cognition, speech, emotions, and sensory perceptions. An update of the systematic review published in 2010 was needed to gauge the efficacy of music interventions in rehabilitation for people with ABI.
OBJECTIVES: To assess the effects of music interventions for functional outcomes in people with ABI. We expanded the criteria of our existing review to: 1) examine the efficacy of music interventions in addressing recovery in people with ABI including gait, upper extremity function, communication, mood and emotions, cognitive functioning, social skills, pain, behavioural outcomes, activities of daily living, and adverse events; 2) compare the efficacy of music interventions and standard care with a) standard care alone, b) standard care and placebo treatments, or c) standard care and other therapies; 3) compare the efficacy of different types of music interventions (music therapy delivered by trained music therapists versus music interventions delivered by other professionals).
SEARCH METHODS: We searched the Cochrane Stroke Group Trials Register (January 2016), the Cochrane Central Register of Controlled Trials (CENTRAL) (2015, Issue 6), MEDLINE (1946 to June 2015), Embase (1980 to June 2015), CINAHL (1982 to June 2015), PsycINFO (1806 to June 2015), LILACS (1982 to January 2016), and AMED (1985 to June 2015). We handsearched music therapy journals and conference proceedings, searched dissertation and specialist music databases, trials and research registers, reference lists, and contacted relevant experts and music therapy associations to identify unpublished research. We imposed no language restriction. We performed the original search in 2009.
SELECTION CRITERIA: We included all randomised controlled trials and controlled clinical trials that compared music interventions and standard care with standard care alone or combined with other therapies. We examined studies that included people older than 16 years of age who had ABI of a non-degenerative nature and were participating in treatment programmes offered in hospital, outpatient, or community settings. We included studies in any language, published and unpublished.
DATA COLLECTION AND ANALYSIS: Two review authors independently extracted data and assessed the risk of bias of the included studies. We contacted trial researchers to obtain missing data or for additional information when necessary. Where possible, we presented results for continuous outcomes in meta-analyses using mean differences (MDs) and standardised mean differences (SMDs). We used post-test scores. In cases of significant baseline difference, we used change scores. We conducted a sensitivity analysis to assess the impact of the randomisation method.
MAIN RESULTS: We identified 22 new studies for this update. The evidence for this update is based on 29 trials involving 775 participants. A music intervention known as rhythmic auditory stimulation may be beneficial for improving the following gait parameters after stroke. We found a reported increase in gait velocity of 11.34 metres per minute (95% confidence interval (CI) 8.40 to 14.28; 9 trials; 268 participants; P < 0.00001; moderate-quality evidence). Stride length of the affected side may also benefit, with a reported average of 0.12 metres more (95% CI 0.04 to 0.20; 5 trials; 129 participants; P = 0.003; moderate-quality evidence). We found a reported average improvement for general gait of 7.67 units on the Dynamic Gait Index (95% CI 5.67 to 9.67; 2 trials; 48 participants; P < 0.00001). There may also be an improvement in gait cadence, with a reported average increase of 10.77 steps per minute (95% CI 4.36 to 17.18; 7 trials; 223 participants; P = 0.001; low-quality evidence).Music interventions may be beneficial for improving the timing of upper extremity function after stroke as scored by a reduction of 1.08 seconds on the Wolf Motor Function Test (95% CI -1.69 to -0.47; 2 trials; 122 participants; very low-quality evidence).Music interventions may be beneficial for communication outcomes in people with aphasia following stroke. Overall, communication improved by 0.75 standard deviations in the intervention group, a moderate effect (95% CI 0.11 to 1.39; 3 trials; 67 participants; P = 0.02; very low-quality evidence). Naming was reported as improving by 9.79 units on the Aachen Aphasia Test (95% CI 1.37 to 18.21; 2 trials; 35 participants; P = 0.02). Music interventions may have a beneficial effect on speech repetition, reported as an average increase of 8.90 score on the Aachen Aphasia Test (95% CI 3.25 to 14.55; 2 trials; 35 participants; P = 0.002).There may be an improvement in quality of life following stroke using rhythmic auditory stimulation, reported at 0.89 standard deviations improvement on the Stroke Specific Quality of Life Scale, which is considered to be a large effect (95% CI 0.32 to 1.46; 2 trials; 53 participants; P = 0.002; low-quality evidence). We found no strong evidence for effects on memory and attention. Data were insufficient to examine the effect of music interventions on other outcomes.The majority of studies included in this review update presented a high risk of bias, therefore the quality of the evidence is low.
AUTHORS' CONCLUSIONS: Music interventions may be beneficial for gait, the timing of upper extremity function, communication outcomes, and quality of life after stroke. These results are encouraging, but more high-quality randomised controlled trials are needed on all outcomes before recommendations can be made for clinical practice.

PMID: 28103638 [PubMed - as supplied by publisher]



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A Multimodal Speech Capture System for Speech Rehabilitation and Learning.

A Multimodal Speech Capture System for Speech Rehabilitation and Learning.

IEEE Trans Biomed Eng. 2017 Jan 18;:

Authors: Sebkhi N, Desai D, Islam M, Lu J, Wilson K, Ghovanloo M

Abstract
Speech-language pathologists (SLPs) are trained to correct articulation of people diagnosed with motor speech disorders by analyzing articulators' motion and assessing speech outcome while patients speak. To assist SLPs in this task, we are presenting the Multimodal Speech Capture System (MSCS) that records and displays kinematics of key speech articulators, the tongue and lips, along with voice, using unobtrusive methods. Collected speech modalities, tongue motion, lips gestures, and voice, are visualized not only in real-time to provide patients with instant feedback but also offline to allow SLPs to perform post-analysis of articulators' motion, particularly the tongue, with its prominent but hardly visible role in articulation. We describe the MSCS hardware and software components, and demonstrate its basic visualization capabilities by a healthy individual repeating the words "Hello World". A proof-of-concept prototype has been successfully developed for this purpose, and will be used in future clinical studies to evaluate its potential impact on accelerating speech rehabilitation by enabling patients to speak as naturally. Pattern matching algorithms to be applied to the collected data can provide patients with quantitative and objective feedback on their speech performance, unlike current methods that are mostly subjective, and may vary from one SLP to another.

PMID: 28103545 [PubMed - as supplied by publisher]



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When does speech sound disorder matter for literacy? The role of disordered speech errors, co-occurring language impairment and family risk of dyslexia.

When does speech sound disorder matter for literacy? The role of disordered speech errors, co-occurring language impairment and family risk of dyslexia.

J Child Psychol Psychiatry. 2017 Feb;58(2):197-205

Authors: Hayiou-Thomas ME, Carroll JM, Leavett R, Hulme C, Snowling MJ

Abstract
BACKGROUND: This study considers the role of early speech difficulties in literacy development, in the context of additional risk factors.
METHOD: Children were identified with speech sound disorder (SSD) at the age of 3½ years, on the basis of performance on the Diagnostic Evaluation of Articulation and Phonology. Their literacy skills were assessed at the start of formal reading instruction (age 5½), using measures of phoneme awareness, word-level reading and spelling; and 3 years later (age 8), using measures of word-level reading, spelling and reading comprehension.
RESULTS: The presence of early SSD conferred a small but significant risk of poor phonemic skills and spelling at the age of 5½ and of poor word reading at the age of 8. Furthermore, within the group with SSD, the persistence of speech difficulties to the point of school entry was associated with poorer emergent literacy skills, and children with 'disordered' speech errors had poorer word reading skills than children whose speech errors indicated 'delay'. In contrast, the initial severity of SSD was not a significant predictor of reading development. Beyond the domain of speech, the presence of a co-occurring language impairment was strongly predictive of literacy skills and having a family risk of dyslexia predicted additional variance in literacy at both time-points.
CONCLUSIONS: Early SSD alone has only modest effects on literacy development but when additional risk factors are present, these can have serious negative consequences, consistent with the view that multiple risks accumulate to predict reading disorders.

PMID: 28102620 [PubMed - in process]



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Measuring communication and participation in children with speech and language disorders.

Related Articles

Measuring communication and participation in children with speech and language disorders.

Dev Med Child Neurol. 2017 Jan 19;:

Authors: Mccartney E

PMID: 28101882 [PubMed - as supplied by publisher]



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Autism Spectrum Disorders - Diagnosis and Management.

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Autism Spectrum Disorders - Diagnosis and Management.

Indian J Pediatr. 2017 Jan 19;:

Authors: Mukherjee SB

Abstract
Autism Spectrum Disorder (ASD) is a neuro-developmental disorder commonly seen in children. It is characterized by age inappropriate, impaired social communication and the presence of stereotypic behavior. This disorder is hypothesized to result from cerebral dysfunction arising from a complex interaction between genetic, epigenetic and environmental factors. ASD should be suspected in children failing ASD specific screening tests, in the presence of red flags in social, language and/or play domains, in children with developmental or language delay, abnormal behavior, poor school performance or in those who are at high risk. Comprehensive assessment comprises of a step-wise approach that includes taking a detailed history, performing a holistic examination and observing the child closely in relation to play, social interaction and behavior. Diagnosis is established by application of the diagnostic criteria for ASD of the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM V). The degree of severity, intellectual and language impairment and presence of other illnesses should be specified. Functional assessment identifies an individual's strengths and weaknesses. All these are important to formulate a customized intervention plan along with the family. The goal is to build up skills enabling optimal and as far as possible normal functioning while simultaneously reducing maladaptive behavior. This is achieved by a multi-disciplinary team comprising of various personnel experienced in tackling issues in ASD related to their respective areas of expertise. Intervention is primarily non-pharmacological, based on behavioral modification strategies. Drugs are only indicated in the reduction of target symptoms refractory to behavioral intervention. Although there is no cure, timely and appropriate intervention can improve the quality of life significantly.

PMID: 28101829 [PubMed - as supplied by publisher]



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