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

Κυριακή 4 Δεκεμβρίου 2022

Tideglusib enhances odontogenic differentiation in human dental pulp stem cells in vitro

alexandrossfakianakis shared this article with you from Inoreader

Abstract

Aim

Tideglusib is a small molecule agonist of the canonical Wnt pathway. The present study investigated the influence of Tideglusib on human dental pulp stem cell (hDPSC) proliferation, apoptosis, migration, and odonto/osteogenic differentiation.

Methodology

hDPSCs were treated with 50 nM, 100 nM, or 200 nM Tideglusib. β-catenin accumulation was detected by immunofluorescence staining. Colony forming unit ability was assessed by staining with Coomassie blue. Cell cycle progression and cell apoptosis were investigated using flow cytometry. Cell migration was examined using an in vitro wound healing assay. Osteogenic differentiation was examined using alkaline phosphatase (ALP) staining, alizarin red s staining, and osteogenic-related gene expression. The gene expression profile was examined using a high throughput RNA sequencing technique. All experiments were repeated using cells derived from at least four different donors (n = 4). The Mann Whitney U test was used to identify significant differences for two independent group comparisons. For three or more group comparison, statistical differences were assessed using the Kruskal Wallis test followed by a pairwise comparison. The significance level was set at 5% (p< /i> < 0.05).

Results

Tideglusib activated the Wnt signaling pathway in hDPSCs as demonstrated by an increase in cytoplasmic β-catenin accumulation and nuclear translocation. Tideglusib did not affect hDPSC proliferation, cell cycle progression, cell apoptosis, or cell migration. In contrast, 50 nM and 100 nM Tideglusib significantly enhanced mineralisation and osteogenic marker gene expression (RUNX2, ALP, BMP2, and DSPP) (p < 0.05).

Conclusions

Tideglusib enhanced the odonto/osteogenic differentiation of hDPSCs. Therefore, incorporating this bioactive molecule in a pulp capping material could be a promising strategy to promote dentine repair.

View on Web

Comparison of quality of life and psychological distress in patients with tongue cancer undergoing a total/subtotal glossectomy or extended hemiglossectomy and free flap transfer: a prospective evaluation

alexandrossfakianakis shared this article with you from Inoreader
The aim of this study was to assess changes in the quality of life and psychological distress of patients with tongue cancer undergoing total/subtotal glossectomy (TG) or extended hemiglossectomy (HG) and free flap transfer. Differences between the two groups were compared using the Short Form 8-Item Health Survey (SF-8) and Hospital Anxiety and Depression Scale (HADS). Of the 43 patients with tongue cancer, 24 (56%) underwent TG and 19 (44%) underwent HG. The general health and social functioning scores in the SF-8 and depression in the HADS were significantly worse in the TG group than in the HG group at 12 months after surgery, indicating that patients in the TG group may experience social isolation and psychological distress, and have difficulty in employability even 12 months after su...
View on Web

Παρασκευή 2 Δεκεμβρίου 2022

Household versus incentive-based contact investigation for tuberculosis

alexandrossfakianakis shared this article with you from Inoreader
Abstract
Background
Household contact investigation for people newly diagnosed with tuberculosis (TB) is poorly implemented, particularly in low- and middle-income countries. Conditional cash incentives may improve uptake.
Methods
We conducted a pragmatic, cluster randomized cross-over trial of two TB contact investigation approaches (household-based and incentive-based) in 28 public primary care clinics in South Africa. Each clinic used one approach for 18 months, followed by a six-month washout period, after which the opposite approach was used. Fourteen clinics were randomized to each approach. In the household-based arm, we conducted TB screening and testing of contacts at the household. In the incentive-based arm, both index patients and up to ten of their close contacts (either within or outside the household). were given small cash incentives for presenting to study clinics for tuberculosis screening. The primary outcome was the number of people with incident tuberculosis who were diagnosed and started on treatment at study clinics.
Results
From July 2016 to January 2020, we randomized 28 clinics to each study arm, and enrolled 782 index tuberculosis patients and 1882 contacts in the household-based arm, and 780 index patients and 1940 contacts in the incentive-based arm. 1,413 individuals started on tuberculosis treatment in the household-based arm, and 1,510 in the incentive-based arm. The adjusted incidence rate ratio of tuberculosis treatment initiation in the incentive versus household-based arm was 1.05 (95% CI:0.97-1.13).
Conclusion
Incentive-based contact investigation for tuberculosis has similar effectiveness to traditional household-based approaches and may be a viable alternative or complementary approach to household-based investigation.
View on Web

Number of lymph nodes sampled in SFCE/SIOP 2001 patients with Wilms tumour: Is the goal of more than six achievable?

alexandrossfakianakis shared this article with you from Inoreader

Abstract

Aim

The number of lymph nodes (LN) that should be sampled during nephrectomy for Wilms tumour (WT) remains controversial but of utmost importance for staging purposes. The aim of this French national retrospective study of patients enrolled in SIOPWT2001 trial was to analyse the number of LN sampled according to their site and to determine if the number of six asked by the International Society of Paediatric Oncology - Renal Tumour Study Group (SIOP-RTSG) UMBRELLA protocol is achievable.

Methods

We reviewed the data collected on central pathology review forms from 2002 to 2014 for only unilateral WT. LN were divided whether they were clearly identified by surgeons at nephrectomy or only found by pathologists on the nephrectomy specimen.

Results

A total of 539 patients (240 male/299 female) were included (458 localized/81 metastatic). Median age at surgery was 41.3 months [0–189]. The number of LN sampled was 0, 1–6, ≥7 and unknown in 69 (12.8%), 293 (54.3%), 160 (29.7%) and 17 (3.2%) cases, respectively. The number of patients with sampled LN were higher if LN were identified by both the pathologist and the surgeon (n = 231, 42.8%) (p = < .001). At least one invaded LN (LN+) was found in 66 patients (12.2%), more than half being found among patients having LN sampled by both pathologist and surgeon (p < .001). The mean number of identified LN was six if no LN+ was detected on final histological analysis, while it was 11 in case of LN+ (p < .001).

Conclusions

The aim of sampling more than six LN is achievable, but only with the active collaboration of both surgeons and pathologists.

View on Web

Social Perception of External Laryngeal Anatomy Related to Gender Expression

alexandrossfakianakis shared this article with you from Inoreader
Social Perception of External Laryngeal Anatomy Related to Gender Expression in a Web-based Survey

Here we detail an original study examining the social perception of laryngeal contour, specifically as it relates to chondrolaryngoplasty and providing gender-affirming care to transgender patients. Over 1,000 study participants were divided into five cohorts, ranking their perceptions of images of graded laryngeal prominence sizes associated with perceived gender expression. This study provides new insights into maximizing ideal social perception of laryngeal contour as it relates to gender perception, while also balancing the essential consideration of preserving necessary thyroid cartilage to maintain laryngeal function.


Objective(s)

To quantify the effect of laryngeal prominence size on socially perceived attributes relating to gender expression. Chondrolaryngoplasty ("tracheal shave") is a common procedure performed for transgender women to feminize neck appearance. The extent of thyroid cartilage resection needed to convey socially-perceived feminine gender expression without destabilizing the voice is incompletely understood.

Methods

Cross-sectional evaluation of a randomized allocation of images of varying laryngeal prominence to a non-repeated, random sample from November 2021 to December 2021. Photos of laryngeal prominence were isolated against a constant neck baseline with lateral, oblique, and frontal views. The images were embedded into a web-based survey with visual analog scales to capture perceived scaled gender expression (masculinity, femininity) and social traits (e.g., attractiveness, friendliness, leadership). We performed bivariate and multivariate analyses relating the laryngeal prominence to perceived gender expression and social traits.

Results

The analytic sample included 1,026 respondents. Laryngeal grades similar to the demonstrated "grade M" in this study and smaller demonstrated similar perceptions of increased femininity and decreased masculinity. Grades larger than M demonstrate significantly increased perceived masculinity and significantly decreased perceived femininity. The lateral and oblique views of the neck appear to be the most gender-informative.

Conclusion

This crowd-sourced analysis of external laryngeal anatomy by a large population of observers provides clear, reproducible insights into social perceptions of gender identity and specifically femininity. These data will meaningfully inform patient counseling and surgical planning for gender-affirming interventions by establishing normative data representing the general public's perceptions.

Level of Evidence

N/A Laryngoscope, 2022

View on Web

Πέμπτη 1 Δεκεμβρίου 2022

Patient experiences of weight loss and eating after bariatric surgery: A Systematic Review and Qualitative Synthesis

alexandrossfakianakis shared this article with you from Inoreader

Abstract

Background

An estimated 26% of men and 29% of women in the UK are living with obesity according to recent statistics. Bariatric Surgery (BS) can induce significant weight loss and improve co-morbidity status. However previous studies highlight challenges in maintaining dietary changes and weight loss. This systematic review aimed to investigate patient experiences of weight loss and eating in the first two years following surgery, to provide clinical recommendations to support this group.

Methods

Ethical approval was granted by the University. A systematic search was conducted in four databases. Studies were selected according to the predefined eligibility criteria and methodological quality, assessed via the CASP tool. Data were extracted and analysed using a thematic synthesis method. Rigour was enhanced via use of a data extraction tool, a validated method for data synthesis, peer-review and transparent reporting.

Results

In total, 507 record s were screened; nine studies met the inclusion criteria. The thematic synthesis yielded four, interlinked analytical themes based on 154 patients' experiences: relationship with food, relationship with oneself, relationship with others and unfinished journey. Positive experiences were reported including development of healthy eating behaviours and significant weight loss, improving physical and psychosocial wellbeing. On the other hand, challenges in adjusting to life after surgery were also reported.

Conclusions

This study highlighted the need for personalised dietary advice, addressing the psychological aspects of eating. Support should be extended to the family. Ongoing psychological support must be incorporated in the post-surgery care pathway to help patients deal with the negative outcomes of surgery such as excess skin.

This article is protected by copyright. All rights reserved.

View on Web

Kutane Plattenepithelkarzinome im Kopf- und Halsbereich

alexandrossfakianakis shared this article with you from Inoreader

Laryngorhinootologie
DOI: 10.1055/a-1953-7374

Hintergrund Das kutane Plattenepithelkarzinom (kPEK) als weltweit zweithäufigster Hauttumor ist überwiegend an Kopf und Gesicht lokalisiert. Aufgrund der steigenden Anzahl älterer Menschen und der dadurch zunehmenden Inzidenz gewinnt es in den letzten Jahren an Relevanz im HNO-Fachgebiet. Material und Methoden Diese Übersichtsarbeit basiert auf einer selektiven Literaturrecherche in PubMed, der deutschen und europäischen Leitlinie sowie klinikeigenen Erfahrungen. Ergebnisse Ätiologisch ist neben der chronischen UV-Exposition eine Störung des körpereigenen Abwehrsystems zunehmend bedeutend. Die vertikale Tumordicke ist mit dem höchsten Risiko einer Metastasierung und eines Lokalrezidivs assoziiert. Weitere bedeutende Risikofaktoren sind: horizontaler Tumordurchmesser, Entdifferenzierung, Desmoplasie, perineurales Wachstum und Lokalisation im Gesicht. Zumeist ist die Exzision mit histologischer Schnittrandkontrolle als Therapie ausreichend. Bei klinischem Verdacht auf lokoregionäre Metastasen sollen je nach Lokalisation des Primärtumors die drainierenden zervikalen Lymphknotenlevel ausgeräumt werden. kPEK der oberen Gesichtshaut und der Ohrmuschel metastasieren bevorzugt zuerst in die Glandula parotidea. Mit der Zulassung des PD-1-Antikörpers Cemiplimab in Europa steht erstmals ein Wirkstoff zur Behandlung fortgeschrittener, chirurgisch oder durch Strahlentherapie nicht therapierbarer kPEK zur Verfügung. Schlussfolgerungen Die grundsätzlich sehr niedrige Mortalität des kPEK erhöht sich erheblich, wenn Metastasen auftreten. Dementsprechend sollen sich bildgebende Verfahren, chirurgische Therapie und Nachsorgeintervalle an den Risikofaktoren orientieren. Hierdurch können Metastasen oder Lokalrezidive frühzeitig erkannt und die Prognose verbessert werden.
[...]

Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany

Article in Thieme eJournals:
Table of contents  |  Abstract  |  Full text

View on Web

Δημοφιλείς αναρτήσεις