نتایج جستجو برای: genetic association

تعداد نتایج: 1059533  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Augustine Kong Michael L Frigge Gudmar Thorleifsson Hreinn Stefansson Alexander I Young Florian Zink Gudrun A Jonsdottir Aysu Okbay Patrick Sulem Gisli Masson Daniel F Gudbjartsson Agnar Helgason Gyda Bjornsdottir Unnur Thorsteinsdottir Kari Stefansson

Epidemiological and genetic association studies show that genetics play an important role in the attainment of education. Here, we investigate the effect of this genetic component on the reproductive history of 109,120 Icelanders and the consequent impact on the gene pool over time. We show that an educational attainment polygenic score, POLYEDU, constructed from results of a recent study is as...

Journal: :iranian journal of public health 0
liya liu 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china . ; 2. dept. of medical laboratory, hunan university of medicine , huaihua, china. lizhang chen 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china . zhanzhan li 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china . liang li 3. medical department of the first affiliated hospital of xiangya, central south university , changsha, china. jian qu 4. the institute of clinical pharmacology, central south university , changsha, china. jing xue 1. dept. of epidemiology and health statistics, school of public health, central south university , changsha, china .

there are much heterogeneity in the genetic variation of type 2 diabetes (t2d). the purpose of this study was to investigate the association of seven novel genetic loci identified in a recent genome-wide association studies (gwas) with t2d in chinese dong populations.a case-controlled study was performed in individuals of chinese dong nationality. the genotypes of pard3b (rs849230), loc729993 (...

2005
Martin Dichgans Hugh S. Markus

Background and Purpose—A large number of candidate gene association studies have attempted to identify genes implicated in stroke, but there have been few replicable and robust associations reported. Summary of Review—The skantness of replicable associations partly relates to poor study design. Important methodological considerations include adequate sample size, the selection of appropriate co...

Journal: :hepatitis monthly 0
mahsa motavaf department of molecular hepatology, middle east liver disease center (meld), tehran, ir iran saeid safari department of molecular hepatology, middle east liver disease center (meld), tehran, ir iran; department of anesthesiology and pain medicine, tehran university of medical sciences, tehran, ir iran seyed moayed alavian department of molecular hepatology, middle east liver disease center (meld), tehran, ir iran; baqiyatallah research center for gastroenterology and liver diseases, baqiyatallah university of medical sciences, tehran, ir iran; baqiyatallah research center for gastroenterology and liver diseases, baqiyatallah university of medical sciences, tehran, ir iran. tel: +98-2188945186, fax: +98-2188945188

results findings showed that the genotype -607a/a is associated with the susceptibility to chronic hepatitis b. furthermore, allele c at position -137 is suggested to play a protective role against development of chronic hbv infection. conclusions host genetic factors play an important role in determining the outcome of hbv infection. it is suggested that il-18 genotype -607 a/a is associated w...

Journal: :iranian red crescent medical journal 0
mohammad reza eslami amirabadi behavioral sciences research center, shahid beheshti university of medical sciences, tehran, ir iran rozita davari-ashtiani department of psychiatry, imam hosein hospital, shahid beheshti university of medical sciences, tehran, ir iran mojgan khademi department of psychiatry, imam hosein hospital, shahid beheshti university of medical sciences, tehran, ir iran sepideh rajeziesfahani behavioral sciences research center, shahid beheshti university of medical sciences, tehran, ir iran babak emamalizadeh department of medical genetics, shahid beheshti university of medical sciences, tehran, ir iran abolfazl movafagh department of medical genetics, shahid beheshti university of medical sciences, tehran, ir iran

conclusions the results of the study show no significant association between norepinephrine transporter polymorphism scl6a2 and adhd. results the percentages of adhd subtypes for combined, inattentive, and hyperactive/impulsive were 72.2%, 17.2%, and 11.9%, respectively. there was no significant association between norepinephrine transporter polymorphism and adhd (p = 0.81). moreover, no signif...

Journal: :Ultrasound in Obstetrics & Gynecology 2019

2018
Jing Ye Xiaojun Niu Yaolong Yang Shan Wang Qun Xu Xiaoping Yuan Hanyong Yu Yiping Wang Shu Wang Yue Feng Xinghua Wei

The heading date is a vital factor in achieving a full rice yield. Cultivars with particular flowering behaviors have been artificially selected to survive in the long-day and low-temperature conditions of Northeast China. To dissect the genetic mechanism responsible for heading date in rice populations from Northeast China, association mapping was performed to identify major controlling loci. ...

Journal: :Bayesian analysis 2015
Harold Bae Thomas Perls Martin Steinberg Paola Sebastiani

We present a coherent Bayesian framework for selection of the most likely model from the five genetic models (genotypic, additive, dominant, co-dominant, and recessive) commonly used in genetic association studies. The approach uses a polynomial parameterization of genetic data to simultaneously fit the five models and save computations. We provide a closed-form expression of the marginal likel...

Journal: :Human heredity 2012
Zhongxue Chen Hon Keung Tony Ng

In genetic association studies, due to the varying underlying genetic models, no single statistical test can be the most powerful test under all situations. Current studies show that if the underlying genetic models are known, trend-based tests, which outperform the classical Pearson χ² test, can be constructed. However, when the underlying genetic models are unknown, the χ² test is usually mor...

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