welsh onion (allium fistulosum l.) is one of the important vegetable crops in china. however, the seeds of this crop are short-lived and their vitality tends to be easily lost in the course of storage. the present study was conducted to elucidate the effects of welsh onion seed priming with potassium nitrate (kno3) on seed vigor and on other such related mechanisms during twelve months of stora...

background cyclosporine a (csa)-induced hepatotoxicity could be due to a reduction in α2β1 integrin expression that may either be from the direct effect of csa itself or from reactive oxygen species (ros) overproduction. objectives in this study we aimed to identify the cellular mechanisms underlying csa-induced hepatic injury by investigating the activation patterns of the antioxidant enzymes,...

background: there are studies that indicated dyshomeostasis of oxidant/antioxidant and trace elements in breast cancer patients, but the data regarding the status of these parameters in various stages of breast cancer are limited. the aim of this study was to highlight the status of these biochemical factors in various stages of breast cancer. methods: fifty-eight breast cancers patients partic...

the effect of long-term onion consumption on red blood cell antioxidant enzymes [glucose-6-phosphate dehydrogenase (g6pd), superoxide dismutase (sod) and glutathione peroxidase (gpx)], were measured. the relationship of these enzymes with pcv and hemoglobin (hb) concentrations was also determined. twelve adult female goats were used for the experiment and randomly assigned to three groups. anim...

background: the aim of this study was to evaluate the possible protective effect of sodium selenite on serum, liver, and kidney antioxidant enzymes activities in alloxan-induced type 1 diabetic rats. methods: forty sprague-dawley male rats were randomly divided into four groups; group one as control, group two as sham-treated with sodium selenite by 1 mg/kg intraperitoneal (i.p.) injections dai...

drought is still accounted as a serious agronomic problem and also one of the most important factors contributing to crop yield loss. the effect of sodium silicate (na2sio3, abbreviated as si) was investigated on the four major antioxidant enzyme activities and five other relevant components in two different grapevine cultivars (vitis vinifera l., cvs mish pestan and sahebi, as tolerant and sen...

background:in recent years, the use of chemicals in agriculture, industry, and public health has become so common that the environment is continuously contaminated by the toxic substance-like metals. aluminum released due to anthropogenic activities such as mining and industrial uses. aluminium has several industrial uses. the present study was designed to investigate the effect of aluminium ch...

grape seed proanthocyanidin extract (gspe) has a broad spectrum of biologic properties against oxidative stress. this study aimed to investigate the effects of gspe on biochemical factors and antioxidant enzymes of erythrocyte in diabetic rats. diabetes was induced through single injection of streptozotocin (50 mg.kg-1, i.p). forty male sprague-dawley rats were divided into four groups: group 1...

this study was performed to investigate the effect of ag+ as an elicitor on the activity of antioxidant enzymes, content of h2o2, accumulation of total tocopherol and antioxidant activity in hairy root cultures of silybum marianum (l.) gaertn. the hairy roots were treated with 2 mm ag+. the treated and non-treated hairy roots were harvested in the same time and data on h2o2 content, dpph, tocop...

the present study investigated the effects of e. coli lipopolysaccharide (lps) induced mastitis model in rat on the activity of antioxidant enzyme systems. to achieve this purpose, e. coli lps were infused into the mammary gland of 12 rats 72 hr postpartum and compared with 12 rats in control group infused intramammary placebo sterile pyrogene – free, physiological saline. the antioxidant activ...