تغییر فاز ملخ صحرایی از فرم انفرادی به مهاجر در اثر استرس­های محیطی از طریق ایجاد تغییرات وراژنتیکی             (اپی ژنتیک) به وجود می­آید. این کاراکتر مهاجرتی با خاصیت برگشت پذیری حداکثر طی سه نسل ایجاد می­شود. افزایش جمعیت، کم شدن میزبان­های گیاهی یا تخریب خرد زیستگاه­های مناسب برای زندگی فاز انفرادی از عوامل مهم استرس زای محرک می باشند. تغییرات وراژنتیکی موجب تغییر مولکولی شبکه اندوپلاسمی سل...

Background: Inflammation and oxidative stress are common in patients with chronic renal disease, including hemodialysis patients. The present study was designed to investigate the effects of L-carnitine supplements on inflammatory cytokines, CRP and oxidative stress in hemodialysis patients. Materials and methods: The study was a randomized clinical trial. Thirty-six hemodialysis patients, (2...

This experiment was conducted in order to conside the effect of L-carnitine (0, 125 and 250 mg/kg) and butyric acid (2 g/kg) on Carcass characteristics and meat quality of broiler chicken. In a 2×3 factorial arrangement in randomized complete block design 192 Ross 308 one-day-old broiler chicks were assigned to 6 dietary treatments with 4 replicates and 8 birds. Results showed that broilers fed...

Carnitine is a water-soluble quaternary amine which increases the long-chain fatty acid metabolism by facilitation of their transport to the oxidation site (mitochondria). Carnitine most likely is present in all animal species, in many microorganisms, and in many plants. In this study, we determined the carnitine level of sera in pregnant and non-pregnant women by segade modified method. Averag...

Background and purpose:Many athletes adopt nutritional manipulations to improve their performance. Among the substances generally consumed is carnitine (L-trimethyl-3-hydroxy-ammoniobutanoate) which has been used by athletes as an ergogenic aid, due to its role in the transport of long-chain fatty acids across mitochondrial membranes. Nutritional supplements containing carbohydrates, proteins...

مقدمه: امروزه با درمان‌های رایج، عمر و امید به زندگی در کودکان مبتلا به لوسمی حاد لنفوبلاستیک (ALL) افزایش یافته است و در نتیجه توجه پژوهشگران بیشتر به کیفیت زندگی این بیماران در درازمدت معطوف شده است. این بیماران در درازمدت با مشکلاتی مانند اختلالات بیوشیمیایی وضعیت مواد معدنی و ویتامین د، کاهش محتوای مینرال در استخوان و شکستگی‌های پاتولوژیک ناشی از استئوپروز رو به رو می‌شوند. هدف از انجام پژو...

  Background and Aim: Nephrotoxicity is the most important and the most frequent adverse effect of Aminoglycosides, which restricts its usage despite its availability and effectiveness. It seems that   L-carnitine with an inhibitory effect on free radical production and some antioxidant effect, may have a supportive role against the potential renal damage due to ischemia. The recent study was d...