نتایج جستجو برای: casecontrol studies
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a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
Background: Our previous study showed that the protective effect of Bacillus Calmette-Guerin (BCG) declined with time, which is supported by a following study saying "BCG vaccination protection against tuberculosis varies between populations, to an extent that cannot be attributed to chance alone". Objective: To investigate BCG protective effect among Chinese people, so as to update the develop...
z Evidence summary Clinicians have been concerned about x-ray exposure during pregnancy since the 1950s. Much of this concern was based on the Oxford Survey of Childhood Leukemia, as well as other early casecontrol studies. These studies reported an approximate 40% increase in the risk of childhood leukemia among offspring of women who received diagnostic x-rays in pregnancy. However, by modern...
BACKGROUND: Tamoxifen has an estrogenic effect on the liver, lead to increase danger of gallstone development. AIM: This study aimed determine prevalence gall bladder stones formation during tamoxifen therapy. METHODS: A prospective casecontrol enrolled 14 premenopausal and 36 postmenopausal females. The condition was assessed by abdominal ultrasound using “Alpinion Portable Color Doppler E-CUB...
Polymorphisms in NQO1, a gene coding for the phase II enzyme involved in the detoxification of quinone carcinogens, have been associated with childhood leukemia in some studies, although the observed direction and magnitude of effects have been inconsistent. Therefore, the authors systematically reviewed all published reports describing the effect of NQO1 in de novo childhood leukemia and condu...
Bipolar disorder(BD) is major psychiatric disorder characterized by an alternating mood episode such as major depressive episode, hypomanic episode, and manic episode. There have been various genetic studies on BD and previous studies reported several candidate genes considered to be associated with BD. ANK3 has been suggested as a possible susceptible gene of BD. In present study, we investiga...
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PHENOTYPE PREDICTION AND FEATURE SELECTION IN GENOME-WIDE ASSOCIATION STUDIES by Andrew Roberts Genome wide association studies (GWAS) search for correlations between single nucleotide polymorphisms (SNPs) in a subject genome and an observed phenotype. GWAS can be used to generate models for predicting phenotype based on genotype, as well as aiding in identification of specific genes affecting ...
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