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Filter by:Nasopharyngeal carcinoma is one of the most common malignant tumors in China, with the progress of radiochemical comprehensive treatment, early stage The 5-year survival rate of nasopharyngeal cancer is more than 95%. However, due to the hidden site of nasopharyngeal carcinoma and the lack of obvious early clinical symptoms, more than 70% of the 87,000 newly diagnosed cases each year belong to the advanced stage of nasopharyngeal carcinoma, and the 5-year survival rate of advanced nasopharyngeal carcinoma is only about 70%. Therefore, early screening and diagnosis and early treatment are the key to improve the survival of patients with nasopharyngeal cancer. Selecting a sensitive and accurate biomarker for nasopharyngeal cancer and relying on a simple and feasible examination method for sampling detection will greatly improve the early diagnosis rate of nasopharyngeal cancer. DNA methylation is a form of chemical modification of DNA that can be done without altering the DNA sequence changes in genetic expression. The main role of DNA methylation is to regulate gene expression. Tumor suppressor genes play the functions of regulating cell differentiation, maturation and programmed death. However, if methylation of promoter region occurs, the expression of tumor suppressor genes is inhibited and the function is lost, resulting in cells remaining in the stage of low differentiation and proliferation, inhibition of apoptosis, formation of blood vessels by cluster cells, loss of cell adhesion, and formation of tumors. It can be seen that DNA methylation occurs in the early stage of tumor, and this biological feature makes it a strong application prospect in early tumor screening. There are many methods to detect DNA Methylation, among which methylation-specific PCR (MSP) can easily and quickly determine the methylation status of a specific gene, meeting the affordable, convenient, and easy to generalize characteristics required for screening tests. In combination with previous MSP experiments and previous reports, we found that the methylation levels of promoter fragments of H4C6, Septin9 and RASSF1A genes in nasopharyngeal carcinoma tissues were significantly higher than those in healthy human nasopharyngeal tissues. This suggests that methylation of these three genes may be used as biomarkers for early screening and diagnosis of nasopharyngeal carcinoma. Therefore, this study intends to detect the methylation status of H4C6, Septin9 and RASSF1A genes based on MSP method with simple operation and low cost. Using clinicopathological diagnosis as the gold standard, the value of this gene methylation index in early screening and early diagnosis of nasopharyngeal cancer was verified, providing a new detection index and method for improving the early diagnosis rate of nasopharyngeal cancer.
The goal of this observational prospective and analytical study is to evaluate the effectiveness of the device developed by Legit.Health in remotely monitoring the severity of chronic dermatologic pathologies. Secondly, to assess patient satisfaction with the device for remote monitoring. All this in patients diagnosed with any of the specified chronic dermatological conditions that meet the inclusion criteria. These patients are attended at the Dermatology Department of the Hospital Universitario de Torrejón. The study proceeded as follows: Patient Selection and Recruitment Visit The recruitment period spanned six months, during which investigators identified eligible patients. The Principal Investigator (PI) or designated collaborating investigators explained the study details to potential participants using the Patient Information Sheet. Patients had the opportunity to seek clarification on any aspects of the study. If a patient chose to participate, they provided informed consent and received a study code. Data collection commenced post-consent. During this initial visit, patients used the device under the supervision of the research team to complete questionnaires and capture photographs associated with their pathology. Subsequently, the patient autonomously and remotely continued the data collection process at home, as detailed in the following section. The device was provided at no cost to patients and the research team for the study's duration. Procedures Performed by the Patient at Home Completion of Questionnaires Patients independently reported on their condition from home, following instructions provided by the research team and the "Patient Information Guide" integrated into Legit.Health, in conjunction with photograph submissions. Every two months, patients completed the "Patient Satisfaction Questionnaire" addressing general user experience aspects. Additionally, they completed the System Usability Scale (SUS) Questionnaire at the same frequency Image capture Patients simultaneously took photographs of the affected areas while completing questionnaires through the app. These photographs were captured using the patient's smartphone from their homes in an autonomous manner. The frequency of photograph submission was determined by the consulting specialist. No specialized camera equipment was required; patients used the camera available on their smartphones. Patients then transmitted these photographs to the research team through a web app Both patients and members of the medical team possessed access credentials. The manufacturer did not have access to patient accounts or information. Data transfer and photograph storage adhered to the European Regulation 2016/679 of 27 April on the protection of natural persons with regard to the processing of personal data and the free movement of such data, as well as the Organic Law 3/2018 of 5 December on the Protection of Personal Data and guarantee of digital rights.
The proposed study is a prospective, observational, investigator and patient blinded study comparing the results of blood volume measurement using the FDA-cleared Daxor BVA-100 device to the Daxor BVA-200 device. Data from this study may be pooled with data from studies with similar design conducted at other sites, for the purposes of an FDA medical device submission.
This study will evaluate the effect of providing access to GPT-4, a large language model, compared to traditional diagnostic decision support tools on performance on case-based diagnostic reasoning tasks.
Objective: the pre-hospital management of cancers is little known in General Medicine. The first lockdown related to the COVID-19 pandemic led to the closure of health facilities. Investigators were interested in the diagnosis and care pathway of digestive cancers in post-confinement in General Medicine in Nouvelle-Aquitaine.
The aim of this study is to assess bioequivalence between a single oral dose from the test product Metformin / Vildagliptin tablets (850 mg as metformin hydrochloride / 50 mg as vildagliptin) manufactured by SAIPH versus the reference product Galvumet® tablets (850 mg as metformin hydrochloride / 50 mg as vildagliptin) manufactured by Novartis. This study also aims to monitor the safety of the subjects. This study is an open-label, randomized, fed, single oral dose, two-treatment, two-sequence, and two-period crossover study with a washout interval of at least one week between dosing. Eighteen (18) Tunisian subjects will be enrolled in this study. Subjects will be healthy volunteers, adults, aged between eighteen to fifty (18-50) years, (both inclusive), within the accepted limits for body height & weight and meeting the selection criteria for this study
Vaccine responses in patients treated with anti-CD20 antibodies (ocrelizumab and ofatumumab) or S1P receptor modulators (fingolimod and siponimod) were evaluated before and after third SARS-CoV-2 vaccination as part of an ongoing longitudinal study. Total spike protein and spike receptor binding domain (RBD)-specific immunoglobulin G (IgG) responses were measured by Luminex bead-based assay. Spike-specific CD4+ and CD8+ T cell responses were measured by activation-induced marker expression.
The aim of the project is to assess the associations between biomarkers of acrylamide and glycidol exposure and disease outcomes in a case-cohort study based on two prospective cohorts with biobanks. The investigators also aim to assess the exposure-affected OMICS signatures and molecular pathways underlying disease development (specifically cardiovascular diseases such as myocardial infarction and stroke and cancer such as breast-, endometrial and colorectal cancer) for these exposures along with persistent organic pollutants (POPs) and per- and polyflouroalkyl substances (PFAS) using a prospective cohort study utilizing and integrating various 'OMICs' technologies.
Autistic patients have higher chances commorbid somatic symptoms. Therefore, it leads to more health-related concerns, such as autoimmune disease, gastrointestinal disease, cardiovascular disease, autonomic disorders. On average, autistic patient's life span is 16 years shorter than non-autistic patients. Furthermore, autistic patients are not able to convey or communicate their somatic symptoms in a clear and comprehensive manner. This leads to unable to receive proper health care in a timely manner.
Obsessive-compulsive disorder (OCD) is a common co-morbidity with bipolar I disorder, a comorbidity that is known to increase suicide risk. This study aimed to assess the presence of OCD in youth diagnosed with bipolar I disorder & to evaluate the association between OCD and suicide in the same cohort. Eighty subjects diagnosed with bipolar I disorder were enrolled in this study, subjects were divided according to the presence or absence of OCD to Group A: Bipolar disorder patients with OCD (n = 26), Group B: Bipolar disorder patients without OCD (n = 54). The following scales were applied: Dimensional Yale-Brown obsessive compulsive scale (DYBOCS)- Beck scale for Suicidal ideations (BSSI) - Hamilton depression rating scale (HDRS) and Young mania rating scale (YMRS). The results revealed that DYBOCS score of group A was 30.23±0.43, & of group B was 18.50±1.88 with a significant difference (p<0.01). There was a significantpositive correlation between BSSI and age, age of onset and YMRS in Group A (p<0.01). The study demonstrated that OCD is a common comorbidity in youth with bipolar I disorder and may be associated with a greater risk of suicide than in youth with bipolar I disorder without co-morbid OCD. Furthermore, co-morbidity of OCD with bipolar I disorder in youth may be associated with younger age of onset and more severe symptoms profile.