In vitro treatment of erythrocytes of normal and hypercholesterolemic rats with N-nitrosodiethylamine (NDEA), an important carcinogen frequently present in human environment and food chain resulted in a marginal increase in osmotic fragility of erythrocytes without affecting their antioxygenic potential as evidenced by insignificant effect on lipid peroxidation (LPO). However, (LPO) of all the ...

The present study was designed with an objective to assess the inhibition of lipid peroxidation (LPO) by the aqueous extract of Calocybe indica (milky mushroom) using an invitro model of goat liver homogenate and RBC ghosts. The invitro LPO was inhibited to a good extent by the aqueous extract of milky mushroom and the extent of inhibition being higher in the RBC membrane model when compared wi...

Homogenization of mammalian tissue--exemplified by porcine kidney-- causes enzymatically induced lipid peroxidation (LPO) processes proven by measuring the amounts of the typical lipid peroxidation products 9- and 13-hydroxy-octadecadienoic acid (HODE) either after homogenization in aqueous (activation of enzymes) or an organic (inactivated enzymes) solvent. A kinetic study revealed that the le...

Background: Phthalates are a group of multifunctional chemicals. Diethyl phthalate (DEP) is one of the most frequently used phthalates in solvents and fixatives for numerous industrial products. Method: The present experiment was designed to assess oxidative stress, if any, caused by diethyl phthalate. For this the homogenates of liver and kidney were treated with different concentrations ( 1...

Oxidative stress is a recognized factor of ischemia reperfusion injury. It shares damage of lipids (LPO) and proteins (PPO), and consequently might cause changes in activity of transport systems. Global 15 min ischemia followed by 2, 24 and 48 hour reperfusion was induced by four-vessel occlusion in Wistar rats of both sexes. Levels of TBARS and conjugated dienes as parameters of LPO were analy...

The effect of Black plum, Syzygium cuminii (Linn.) Skeels (syn. S. jambolanum DC.) seed extract on lipid peroxidation in alloxan induced diabetic rats was studied. Alloxan 150mg (mg/kg body weight) increased significantly the glucose level in blood and induced the Lipid Peroxidation (LPO) in liver. The antioxidant enzymes Catalase (CAT), Reduced Glutathione (GSH), Glutathione peroxidase (GPx), ...

Human spermatozoal motility, viability and lipid peroxidation (LPO) have been assessed in Ringer-Tyrode supplemented with different concentrations of ascorbic acid (AA) ranging from 50 to 4000 microM. Ascorbic acid in concentrations below 1000 microM protects spermatozoa from free radical damage as evidenced from improvement in their motility and viability. Concomitantly, there is also witnesse...

Bacterial lipopolysaccharide (LPS) causes lipid peroxidation (LPO). We have found that LPS induces LPO in tissue homogenates in vitro in a concentration-dependent manner, the concentration of 400 μg/ml demonstrating the most efficient lipid damaging effect. Antioxidant properties of melatonin are unquestionable and have been proved both in vivo and in vitro. It has been demonstrated that also m...

Manganese (Mn) is a chain-breaking antioxidant in biological systems. The objective of the present study was to determine the optimal dose of Mn to reverse free radical-mediated oxidative damage on motility, viability, and lipid peroxidation (LPO) of sperm from five bulls (local crossbred cattle). Fresh semen was suspended in 2.9% sodium citrate, divided into equal fractions, and subjected to M...

In the present study, oxidative damage parameters in preeclamptic pregnant women were investigated and compared with healthy tissues. Antioxidant enzymes determined 53 placentas. The of free oxygen radicals placental tissue was by measuring antioxidant enzyme systems (The amounts lipid peroxidation (LPO), glutathione (GSH) catalase (CAT), myeloperoxidase (MPx) activities nitric oxide levels (NO...