Deregulation of NF-кB–miR-146a negative feedback loop may be involved in the pathogenesis of diabetic neuropathy

Deregulation of NF-кB–miR-146a negative feedback loop may be involved in the pathogenesis of diabetic neuropathy


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نویسندگان: محمدرضا علیپور , نصیبه یوسف زاده

کلمات کلیدی: Diabetes . Sciatic nerve . MicroRNA-146a . NF-κB . IRAK1 . TRAF6

نشریه: 55353 , 1 , 71 , 2015

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نویسنده ثبت کننده مقاله محمدرضا علیپور
مرحله جاری مقاله تایید نهایی
دانشکده/مرکز مربوطه مرکز تحقیقات علوم اعصاب
کد مقاله 58126
عنوان فارسی مقاله Deregulation of NF-кB–miR-146a negative feedback loop may be involved in the pathogenesis of diabetic neuropathy
عنوان لاتین مقاله Deregulation of NF-кB–miR-146a negative feedback loop may be involved in the pathogenesis of diabetic neuropathy
ناشر 3
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عنوان نشریه (خارج از لیست فوق)
نوع مقاله Original Article
نحوه ایندکس شدن مقاله ایندکس شده سطح یک – ISI - Web of Science
آدرس لینک مقاله/ همایش در شبکه اینترنت http://www.ncbi.nlm.nih.gov/pubmed/25567745

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The current study was designed to explore whether microRNA-146a and its adapter proteins (tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6) and interleukin-1 receptor-associated kinase 1 (IRAK1)) are involved in the pathogenesis of diabetes neuropathy. Twelve male Sprague Dawley rats were randomized into control and diabetic groups (n=6). Diabetes was induced by a single-dose injection of nicotinamide (110 mg/kg; i.p.), 15 min before injection of streptozotocin (50 mg/kg; i.p.) in 12-h-fasted rats. Diabetic neuropathy was evaluated by hot plate and tail emersion tests, 2 months after the injection of streptozotocin. The gene expression level of microRNA-146a (miR-146a), IRAK1, TRAF6, and nuclear factor kappa B (NF-κB) was measured in the sciatic nerve of rats using the real time-PCR method. Moreover, the activity of NF-κB and the concentration of pro-inflammatory cytokines were determined by the ELISA method. In comparison with the control group, a threefold increase in the expression of miR-146a and NF-κB, and a twofold decrease in the expression of TRAF6 were observed in the sciatic nerve of diabetic rats. Furthermore, the NF-κB activity and the concentration of TNF-α, interleukin 6 (IL-6), and interleukin 1β (IL-1β) in the sciatic nerve of diabetic rats were higher than in those of control counterparts. These results suggest that a defect in the NF-кB–miR-146a negative feedback loop may be involved in the pathogenesis of diabetic neuropathy

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محمدرضا علیپوردوم
نصیبه یوسف زادهاول

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