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NCT ID: NCT04696315 Recruiting - Alzheimer Disease Clinical Trials

Early Diagnosis of SCD Based on Radiogenomics

Start date: January 1, 2021
Phase:
Study type: Observational

The incidence of AD dementia is increasing due to the aging population, putting a heavy burden on our society and economics. Exploring the mechanisms underlying SCD due to preclinical AD has scientific and clinical significance. However, it is challenging to construct and validate the preclinical diagnosis model of AD with fused multimodel information across culture/race. From the cooperation during the past five years, we have established cohorts by synchronized assessment, achieved consensus on SCD features extraction and made a breakthrough in the application of multiple parameter MRI with German collaborators. Therefore, in this project, SCD with and without amyloid pathology will be compared by clinical and cognitive data, genetics, blood and MRI biomarkers between the German and Chinese. Key features will be extracted and specific characteristics of SCD due to preclinical AD as well as risk factors for conversion between two countries will be clarified. Then the diagnosis model of preclinical AD in SCD will be established across culture/race based on radiogenomics, which will improve the current diagnostic system of AD. Through this project, the value of SCD in the etiologic, anatomical and quantitative diagnosis of preclinical AD will be identified to improve sensitivity and specificity of preclinical AD diagnosis in clinical practice.

NCT ID: NCT04621864 Completed - Gene Clinical Trials

Gene Polymorphisms and Morphine Analgesic Consumption

Start date: November 20, 2020
Phase:
Study type: Observational

Variation of morphine requirements are seen considerably. Studies showed that pharmacogenetics (PGx) could possibly be used to tailor pain medication according to an individual's genetic background. While prior studies demonstrated the association of genetic polymorphism with opioid requirements in various types of surgeries in Asian and European populations, there are no published data in Middle East populations especially Arabs. However, in our area we have a lot of theincity that may give us an answer for this research question. Objectives: The primary Objective of this study is to investigate whether the genetic polymorphism of human μ-opioid receptor gene (OPRM1), ATP binding cassette gene (ABCB1) and rs2952768 are contributing to the variation of morphine consumption in women undergoing laparoscopic cholecystectomy. The secondary objective is to assess the effect of these genetic polymorphisms on pain score, analgesic dosage requirements, and complications of morphine use in these patients within the first 24 hours.

NCT ID: NCT04601142 Recruiting - Clinical trials for Neuromyelitis Optica

Association Between the Effect of Glucocorticoid Pulse Therapy on Neuromyelitis Optica (NMO) and Gene Polymorphism

Start date: October 31, 2020
Phase:
Study type: Observational

Aims of this study are to observe the correlation between ABCB1、VDR、TBX21、NR3C1 and other gene polymorphisms and the effect of glucocorticoid shock therapy on neuromyelitis optica. Investigators plan to include patients with neuromyelitis optica who will receive glucocorticoid shock therapy prospectively. The patients are divided into glucocorticoid sensitive (GS) group and glucocorticoid resistance (GR) group according to the change of central vision after treatment. Patients' clinical data will be collected and blood samples are needed for single nucleotide polymorphism (SNP) typing test. Through statistical analysis, the data differences between GS group and GR group were compared, and the effects of clinical indexes and gene polymorphisms on the efficacy of glucocorticoid shock therapy in the treatment of neuromyelitis optica should be analyzed.

NCT ID: NCT03839186 Completed - Drug Reaction Clinical Trials

Pharmacogenetics Study on the Effects of Anesthetic Drugs on Circulatory Function

Start date: August 2016
Phase:
Study type: Observational

This study intends to study the effects of anesthetics on Circulatory Function Genomics and find the anesthetic effects in pharmacodynamics, pharmacokinetics, drug receptor or target DNA level differences, further guiding individual treatment in clinic, promoting the development of precision the medicine.The anesthesia medication during perioperative period is more and more accurate,reasonable and safe, so as to improve the satisfaction of the patients and their families in the perioperative period, to ensure the safety of patients.