نتایج جستجو برای: ژن vdr
تعداد نتایج: 18181 فیلتر نتایج به سال:
Vitamin D3 is a steroid hormone well known by its role in maintaining calcium homeostasis, however this hormone may also participate in other biological functions, including control of reproductive processes. The vitamin D3 action is mediated by the vitamin D3 receptor (VDR). VDR is widely distributed in the rodent reproductive tract, however the occurrence of VDR and the role of the vitamin D3...
Vitamin D and vitamin D receptor (VDR) deficiency results in severe symptoms of experimental inflammatory bowel disease in several different models. The intraepithelial lymphocytes of the small intestine contain large numbers of CD8αα(+) T cells that have been shown to suppress the immune response to Ags found there. In this study, we determined the role of the VDR in the development of CD8αα(+...
Dehydroepiandrosterone sulfotransferase (SULT2A1) is a cytosolic enzyme that mediates sulfo-conjugation of endogenous hydroxysteroids (dehydroepiandrosterone, testosterone, bile acids), and diverse xenobiotic compounds. Upon sulfonation, SULT2A1 substrates become polar and water-soluble and thus suitable for rapid excretion. SULT2A1 is abundantly expressed in the liver and intestine. Recent evi...
Polymorphisms of the vitamin D receptor gene (VDR) have been associated inconsistently with various diseases, across populations of diverse origin. The T(f) allele of the functional SNP FokI, in exon 2 of VDR, results in a longer vitamin D receptor protein (VDR) isoform, proposed to be less active. Genetic association of VDR with disease is likely confounded by ethnicity and environmental facto...
The vitamin D receptor (VDR) mediates the physiological and pharmacological actions of 1α,25-dihydroxyvitamin D(3) in bone and calcium metabolism, cellular growth and differentiation, and immunity. VDR also responds to secondary bile acids and belongs to the NR1I subfamily of the nuclear receptor superfamily, which regulates expression of xenobiotic metabolism genes. When compared to knockout m...
PURPOSE We previously showed that EGF receptor (EGFR) promotes tumorigenesis in the azoxymethane/dextran sulfate sodium (AOM/DSS) model, whereas vitamin D suppresses tumorigenesis. EGFR-vitamin D receptor (VDR) interactions, however, are incompletely understood. Vitamin D inhibits the renin-angiotensin system (RAS), whereas RAS can activate EGFR. We aimed to elucidate EGFR-VDR cross-talk in col...
زمینه: پلی مورفیسم های ژن گیرنده ویتامین d (vdr) موجب اختلال هایی درعملکرد ایمنومدولاتوری آن می شوند و بین پلی مورفیسم bsmі ژن گیرنده ویتامین d و استعداد ابتلا به لوپوس ارتباط گزارش شده است. هدف: مطالعه به منظور مقایسه ژنوتیپ های پلی مورفیسم bsmі ژن گیرنده ویتامین d دربیماران مبتلا به لوپوس با افراد سالم انجام شد. مواد و روش ها: این مطالعه مورد– شاهدی بر روی60 بیمار مبتلا به لوپوس و 45 فرد سالم...
The human vitamin D receptor (VDR) is a key nuclear receptor that binds nutritionally derived ligands and exerts bioeffects that contribute to bone mineral homeostasis, detoxification of exogenous and endogenous compounds, cancer prevention, and mammalian hair cycling. Liganded VDR modulates gene expression via heterodimerization with the retinoid X receptor and recruitment of coactivators or c...
Vitamin D receptor (VDR) controls the expression of numerous genes through the conformational change caused by binding 1α,25-dihydroxyvitamin D3. Helix 12 in the ligand-binding domain (LBD) is key to regulating VDR activation. The structures of apo VDR-LBD and the VDR-LBD/antagonist complex are unclear. Here, we reveal their unprecedented structures in solution using a hybrid method combining s...
هدف: تغییرات ژن گیرنده ویتامین d و تعامل آن با مولکولهای تنظیم کننده ایمنی در استئوپروز موررد بررسی قرار گرفت. مواد و روشها: مجموعا 205 زن در سنین 36 تا 65 سال در این مطالعه شرکت کردند.این افراد بصورت تصادفی از مراجعین به درمانگاههای مرکز تحقیقات غدد و متابولیسم انتخاب شدند. مقادیر سرمی ویتامین d ، هورمون پاراتیرویید، استئوکلسین و کراس لپس اندازه گیری شد. پلی موفیسم fokiدر اگزون 2 ژن گیرنده وی...
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