نتایج جستجو برای: oxidant type
تعداد نتایج: 1354809 فیلتر نتایج به سال:
Parameters of lipid peroxidation, protein oxidation, and antioxidant defense systems were measured in blood samples from 47 children with type 1 diabetes mellitus and from 51 healthy controls, matched for age and sex. In the diabetic children, chemiluminescent assay of plasma superoxide anion gave photoemission (counts x 10(3), mean +/- SD) of 674 +/- 412, which were significantly higher than t...
One hallmark of the insulin-resistant state of prediabetes and overt type 2 diabetes is an impaired ability of insulin to activate glucose transport in skeletal muscle, due to defects in IRS-1-dependent signaling. An emerging body of evidence indicates that one potential factor in the multifactorial etiology of skeletal muscle insulin resistance is oxidative stress, an imbalance between the cel...
Egg yolk low-density lipoproteins (LDL) and soybean lecithin were evaluated as replacements for egg yolk in extenders used for the cryopreservation of brown-bear spermatozoa. The motility, viability and acrosomal status of post-thawed spermatozoa were analysed, and an egg-yolk extender was used as a control. The total antioxidant capacity of these extenders was tested. Soybean lecithin showed a...
UNLABELLED Acetaminophen (APAP) hepatotoxicity is the most frequent cause of acute liver failure in many countries. The mechanism of cell death is initiated by formation of a reactive metabolite that binds to mitochondrial proteins and promotes mitochondrial dysfunction and oxidant stress. Manganese superoxide dismutase (SOD2) is a critical defense enzyme located in the mitochondrial matrix. Th...
AIMS/INTRODUCTION Type 2 diabetes is often complicated by diabetic foot syndrome (DFS). We analyzed the circulating stem cells, growth factor and anti-oxidant gene expression profiles in type 2 diabetes patients without or with different forms of DFS. MATERIALS AND METHODS Healthy volunteers (n = 13) and type 2 diabetes patients: (i) without DFS (n = 10); or with (ii) Charcot osteoneuropathy ...
A hallmark feature of type 1 and type 2 diabetes mellitus is the progressive dysfunction and loss of insulin-producing pancreatic beta cells, and inflammatory cytokines are known to trigger beta cell death. Here we asked whether the anti-oxidant protein DJ-1 encoded by the Parkinson's disease gene PARK7 protects islet cells from cytokine- and streptozotocin-mediated cell death. Wild type and DJ...
با عنایت به موارد فوق هدف اصلی از انجام این تحقیق، مقایسه اثر افزودن اکسیدکننده هائی نظیر naio4، na2s2o8 و nabro3 بر فرایند فتوکاتالیستی با استفاده از نانو ذرات tio2 تثبیت شده بر بستر بتن به کمک اشعه uv از نظر بازده، هزینه ها و راندمان حذف جهت حذف رنگزای مستقیم آبی 71 می باشد. پارامترهای غلظت اولیه رنگزا، ph، شدت تابش uv-c، زمان و دز اکسیدکننده در طی انجام آزمایش جهت تعیین شرایط بهینه مورد بررس...
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