results administration of dse significantly increased serum paraoxonase and arylesterase activities in treated hypercholesterolemic groups compared to untreated ones. there was a significant difference in the taoc of serum between the normal diet and hypercholesterolemic groups. however, dse did not change the taoc in hypercholesterolemic groups significantly. conclusions dse increases serum pa...

conclusions in lighting conditions, most of t-res was isomerized to the other isomer cis-resveratrol. t-res is unstable in alkali ph and when exposed to light. t-res was quite stable at other conditions, and several freeze-thaw cycles did not have any effect on its stability. results our findings revealed that t-res was quite stable in different temperatures ranging from -70 °c to 25 °c, and ac...

conclusions results of the present study showed that hydroalcoholic extracts of pomegranate seeds had a significant protective effect against bleomycin-induced lung fibrosis by its antioxidant properties. the highest protective effect was observed for the 400 mg/kg dose. results histological analysis showed that pse could prevent pathological changes that were seen in the bleomycin group. objec...

conclusions increment in the number of parity can lead to decrease antioxidant defense mechanisms in multiparous women and their newborns. so, control of oxidative stress is considered to be beneficial in multiparous women. background parturition has been associated with free radicals, itself linked with poor pregnancy outcome. objectives this study aimed to investigate the relationship between...

Reactive oxygen species are important elements in ototoxic damage to hair cells (HCs), appearing early in the damage process. Higher levels of natural antioxidants are positively correlated with resistance to ototoxins and many studies have shown that exogenous antioxidants can protect HCs from damage. While a very wide variety of antioxidants with different characteristics and intracellular ta...

A diet rich in fruits, vegetables and minimally refined cereals is associated with lower risk for chronic degenerative diseases. Since oxidative stress is common in chronic degenerative disease, it has been assumed that dietary antioxidants may explain this protective effect. Every dietary plant contains numerous types of antioxidants with different properties. Many of these antioxidants cooper...

nineteen bread wheat genotypes were selected to examine the effect of glycine betaine (gb, 100 mm) on various photosynthetic gas exchange parameters under drought stress and to study the relationship of these parameters with non-enzymatic antioxidants. drought stress caused a significant decline in net co2 assimilation rate (pn), stomatal conductance (gs), intercellular co2 concentration (ci) a...

background medicinal plants with natural antioxidants have been shown to be beneficial in a variety of complications such as anxiety. the elevated plus-maze (epm) is one of the most widely used models to assess anxiety in small rodents. objectives this study was designed to characterize the anxiolytic-like activity of borago officinalis (linnaeus, family boraginaceae) or borage flowers extract,...

raspberry waste, obtained from two cultivars, meeker (erm) and willamette (erw) was subjected to evaluation antioxidants and antitumour activities as a potential source of phenolics. some phenolic acids and flavonoids were identified and quantified by hplc. antioxidant activity was tested by measuring ability to scavenge dpph• and •oh by esr spectroscopy. ic50dpph• varied from 0.67 for erm to 0...

oxidative stress is one of the important mechanisms involved in dexamethasone (dex)-induced hypertension. protocatechuic acid (pca) is a natural compound with high antioxidant capacity. in this investigation, the effect of pretreatment with pca was studied in dex-induced hypertensive male wistar rats. for induction of hypertension, dex was injected subcutaneously for 14 days. pca (50, 100 and 2...