During the late pregnancy and during parturition in bovine, sevearl hormones and reoxygenation of placental tissues and consequences oxidative stress were involved. In this study blood samples from pregnant cows in the last three weeks of pregnancy were taken. At parturition 10 animals were selected as normal parturition and non-retaind placental expulsion. Other 10 cows were selected with normal parturition and retaind placenta. Another blood samples were taken after 1, 24 and 48 hours postpartum from both the obivois groups. The study concluded that oxidative stress and cortisol hormone might play an important role in the process of parturition in cows. It was also found that the extra-elevation of the LPO, NO and cortisol and the reduction of antioxidants could be used as indictor for the possibility of retention of fetal membrane after parturition.

During the late pregnancy and during parturition in bovine, sevearl hormones and reoxygenation of placental tissues and consequences oxidative stress were involved. In this study blood samples from pregnant cows in the last three weeks of pregnancy were taken. At parturition 10 animals were selected as normal parturition and non-retaind placental expulsion. Other 10 cows were selected with normal parturition and retaind placenta. Another blood samples were taken after 1, 24 and 48 hours postpartum from both the obivois groups. The study concluded that oxidative stress and cortisol hormone might play an important role in the process of parturition in cows. It was also found that the extra-elevation of the LPO, NO and cortisol and the reduction of antioxidants could be used as indictor for the possibility of retention of fetal membrane after parturition.

The present study found that antioxidant and the changes in LPO and NO levels were subjected to marked changes in the course of follicular growth during luteal phase of estrous cycle in buffalo-cows. These changes in the intra-folicular environment may reflect the follicular requirements for growth, maturation and maintenance of viability of oocyte in buffalo-cows.

The present study found that antioxidant and the changes in LPO and NO levels were subjected to marked changes in the course of follicular growth during luteal phase of estrous cycle in buffalo-cows. These changes in the intra-folicular environment may reflect the follicular requirements for growth, maturation and maintenance of viability of oocyte in buffalo-cows.

The study found that the use of BAL and DMPS as chelating agents after long-term of mercuric exposure resulted in considerable recovery in the histopathological, hematological. and biochemical alteration that induced by mercury. However, DMPS has a relative better effect due to its water solubility, less toxicity and its ability to chelate with more metal ions.

The study found that the use of BAL and DMPS as chelating agents after long-term of mercuric exposure resulted in considerable recovery in the histopathological, hematological. and biochemical alteration that induced by mercury. However, DMPS has a relative better effect due to its water solubility, less toxicity and its ability to chelate with more metal ions.

The study found that the use of BAL and DMPS as chelating agents after long-term of mercuric exposure resulted in considerable recovery in the histopathological, hematological. and biochemical alteration that induced by mercury. However, DMPS has a relative better effect due to its water solubility, less toxicity and its ability to chelate with more metal ions.

The study aimed to test the effect of cumulative dose of BHT and Nigella sativa oil on the liver and kidney of rats. Rats were orally exposed to BHT (500mg/kg), oil (0.5 ml/rat), and a combination of the obvois doses for two weeks. The results indicate that the oral toxicity of BHT or Nigella staiva oil in rats is of lower order, but this toxicity was increased when the rats treated with the comination of BHT and Nigella sativa oil.

Gluathione is an important free radical scavenger and a decline in its tissue level is indicative of increased oxidative stress in diabetes. In this study treatment of rats with STZ induced-IDDM and hepatotoxicity as seen by elevation of plasma AST,ALT &GGT. Also, diabetic rats had a loss in the body weight and increased in liver weight. GSH and GR activity were significantly dcreased while GST and GGT ase activity increased in rats treated with STZ. Moreover, diabetic rats showed increase in the rate of bile flow, while biliary efflux of GSH was decreased. Biliary excretion of lysosomal glycosidases activities with 4-methylumbelliferyl were significantly increased in diabetic rats than normal.