نتایج جستجو برای: stress protein
تعداد نتایج: 1610647 فیلتر نتایج به سال:
background and objectives: drought stress is one of the most important environmental factors reducing growth and yield of crops, especially in arid and semiarid regions of the world. during drought stress, nutrient uptake diminishes due to rising of solute concentrations and so increasing of osmotic potential in the root zone. with increasing soil ph, micronutrient uptake decreases more than ot...
Background: Increased rate of oxidative stress have important role in diabetic nephropathy. Oxidative stress induces the synthesis of antioxidant enzymes. One of them, Extracellular- SOD (EC–SOD) is a major anti-oxidative enzyme and the only one that neutralizes superoxide ion, a precursor of reactive oxygen species (ROS). The aim of this study was to evaluate the correlation between diabetes- ...
Abstract This study was conducted to evaluate the role of oxidative stress in roots of eight wheat genotypes with different drought tolerance, subjected to drought stress. For analyzing the changes of antioxidant enzymes, native PAGE analyses of protein extract were performed. The roots of wheat seedlings showed one unambiguous isoform of superoxide dismutase (SOD) and catalase (CAT). Eight iso...
reactive oxygen species (ros) are produced in many normal and abnormal processes in humans, including atheroma, asthma, joint diseases, cancer, and aging. basal levels of ros production in cells could be related to several physiological functions including cell proliferation, apoptosis and homeostasis. however, excessive ros production above basal levels would impair and oxidize dna, ...
background: the present study describes the susceptibility of prepubertal testis of mice to prooxidant induced oxidative impairments both under in vitro and in vivo exposure conditions. materials and methods: following in vitro exposure to iron (5,10 and 25 m), oxidative response measured in terms of lipid peroxidation and hydroperoxide levels in testis of pre pubertal mice (4 wk) was more robu...
Tea was planted in Lahijan by Kashefalsataneh in 1930. The main concern about important commercial plants such as tea is the formation of ice crystals in low temperatures. This can damage the live cells leading to lowering the quality of the plant and eventually its death. Formation of reactive oxygen species (ROS) and oxidative stress is the result of various environmental stresses leading to ...
In order to study the effects of salt stress and leaf feeding by ascorbic acid on antioxidant enzyme activity, proline accumulation and lipid peroxidation on leaves and roots of Brassica napus L. cvs. Okapi, an experiment was conducted as a factorial in a completely random design with three replications. Plants were exposed to salt stresses by NaCl solution (200 mM) and foliar were treated by a...
Background and purpose: Diazinon (Dz) is a widely used insecticide. It can cause nephrotoxicity and neurotoxicity by induction of oxidative stress. Edaravone is a drug with antioxidant effect that is used in treatment of acute infraction disorders. In this study we used edaravone for ameliorating diazinon induced kidney and brain damage. Materials and methods: Twenty four male Wistar rats were...
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