نتایج جستجو برای: g polymorphism
تعداد نتایج: 537054 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE Migraine patients are particularly prone to the complication of medication-overuse headache (MOH). Although it has been shown that A allele carriers for the tumor necrosis factor (TNF)-β gene G252A polymorphism are at high risk of the development of migraine without aura, the relationship between the TNF-β gene G252A polymorphism and MOH is unknown. We investigated whethe...
OBJECTIVE The relationship among alcohol metabolism, lipid profile and cardiovascular disease has been a matter of concern, and aldehyde dehydrogenase-2 (ALDH2) is one of the key enzymes involved in alcohol metabolism. The frequency of ALDH2 gene G/A polymorphism (with the substitution of glutamic acid to lysine) varies widely among ethnic groups; the polymorphism is prevalent among Asian peopl...
Background: Recurrent Pregnancy Loss (RPL) is a multifactorial disease that affects 1-3% of couples. Since Human Leukocyte Antigen-G (HLA-G) gene is involved in fetal maternal immune tolerance, mutations in the HLA-G gene can affect the success rate of pregnancy. Objective: The present study aims to investigate the haplotype effect of rs1736933 and rs2735022 polymorphisms found in the HLA-G ge...
The intrapulmonary renin-angiotensin system via tissue concentration of angiotensin II or bradykinin may have multiple effects on pulmonary pathophysiology. Therefore, it was investigated whether the presence of the D allele of the angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism or the A allele of angiotensinogen (AGT) promoter polymorphism (-6)A/G are independent risk...
Background: Coronary heart disease (CHD) is a leading cause of death worldwide and hypertriglyceridemia and hypercholesterolemia are major risk factors for the disease. Considering the role of hyperlipidemia as the underlying cause of cardiovascular mortalities and morbidities, and the limited and conflicting results of studies on CETP gene polymorphisms in Iran, we aimed to study -971 G/A poly...
Background and purpose: Abortion has several types, and different reasons are associated with pregnancy loss. Immunological mechanism is one of the abortion causes. HLA-G is a non-classical molecule of type Ib MHC that has limited polymorphism and mainly express on fetal trophoblastic cell, therefore, it has been suggested that this has a potential role in maintaining fetal–maternal relationshi...
introduction: hepatitis b is a potentially life-threatening infection that causes acute infection and chronic hepatitis with progression to cirrhosis and hepatocellular carcinoma (hcc). interleukin-12 (il12) is responsible for activation of th1 immune responses, leading to possible clearance of hbv infection from the host’s body. the host’s immune-genetic background plays an important role in t...
Several investigations have focused on the relationship between paraoxonase-1 (PON-1) polymorphisms and the risk of polycystic ovary syndrome (PCOS); however, the result remains conflicting. To obtain a more precise estimation of the correlation between PON-1 polymorphisms [rs705379 C>T (-108C/T), rs854560 T>A (55Leu/ Met) and rs662 A>G (192Gln/Arg)] and the risk of PCOS, we performed a meta-an...
OBJECTIVES RAD51 gene plays an important role in the pathogenesis of squamous cell carcinoma of the head and neck (SCCHN), colorectal cancer, ovarian cancer and acute leukaemia. A number of studies assessed the association between RAD51 135G/C polymorphism and the risk of these cancers in different population. However, the results have been inconclusive. We performed a systematic meta-analysis ...
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