نتایج جستجو برای: oxygen free radicals

تعداد نتایج: 716531  

Mitochondria plays a major role in maintaining homeostasis of heart cells. Mitochondria produce ATP and is the main intracellular source of reactive oxygen species (ROS) which can cause oxidative damage. Free oxygen radicals and oxidative damage are associated with cardiovascular pathology. Antioxidant defense can play an essential role in preventing oxidative damage by controlling free oxygen ...

Journal: :jundishapur journal of natural pharmaceutical products 0
ali asghar hemmati school of pharmacy, ahvaz jundishapour university of medical sciences, ahvaz, ir iran; school of pharmacy, ahvaz jundishapour university of medical sciences, ahvaz, ir iran. tel: +98-6113738378, fax: +98-6113738381

2009
Hai Chen

Oxygen free radicals or oxidants that arise from molecular oxygen by successive single-electron reduction reactions, include the superoxide anion (O2), the hydrogen peroxide (H2O2), and hydroxyl radicals (·OH) (Chan 1996). Physiological levels of free radicals are needed for redox sensitive signal pathways, cell development and cell apoptosis (Chan 2001). During brain ischemia/reperfusion (I/R)...

Journal: :Anaesthesia and Intensive Care 1987

Journal: :British Journal of Ophthalmology 1996

S. Saraswat, S.D. Kharche S.K. Jindal

Reactive oxygen species (ROS)plays an important role in sperm motility. The physiological generation at low concentration induces beneficial effects on sperm functions and plays a significant role in sperm metabolism. Meanwhile, the excessive generation of reactive oxygen species can overwhelm protective mechanism and triggers changes in lipid and protein layers of sperm plasma membrane, which ...

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