Cisplatin is one of the most widely used cytotoxic therapeutic agents for the treatment of cancer. This drug, at effective higher doses or multiple low doses, causes many physiological adverse effects. N,N Diphenyl-р-phenylenediamine (DPPD) and Vit C against cisplatin-induced oxidative stress in rats. Cisplatin was injected once a week (2 mg/kg bwt) for 4 weeks. DPPD (125 mg/kg bwt) and vit C (100 mg/kg bwt) were injected once a week an 24 hour prior to cisplatin injection. In cisplatin treated group, the number of RBCs and WBCs were decreased (P 0.05) compared to that of control rats. However, in rats injected with Vit C or DPPD prior to cisplatin treatment, blood cells counts elevated again to their normal values. Cisplatin toxicity was manifested biochemically by a significant increase (P0.05) of LPO in spleen as well as a decrease in GSH content which associated with a reduction in the activities of antioxidant enzymes, SOD, CAT, GST and γ GGT in spleen and plasma. In addition to the marked decrease in Vit C and Vit E levels. In rats treated with Vit C or DPPD in combination with cisplatin LPO and the activities of SOD, GST, CAT and GGT restored to about normal control levels. In conclusion DPPD and vitamin C are efficient promising compounds for reducing cisplatin-toxic side effects.

serum levels of GH, Somatomedin-C as well as linear body growth were determined in 28 young diabetic subjects (14 children and 14 preadolescents) and in 20 normal age-matched control. All children and 50% of the preadolescent patients were poorly controlled. The mean hight in both groups was insignificantly lower than that in controls. Serum GH was higher in both groups while SM-C was insignificantly lower in children and insignificantly higher in preadolescents than that in the controls. An inverse correlation between GPP and SM-C in the poorly controlled preadolescent diabetics. These finding may suggest that the decreased linear growth results in poorly controlled diabetics from decreased serum SM-C. Meanwhile, the elevated GH levels may imply a state of GH resistance and may help to explain the inadequate diabetes control among this group patients.

serum levels of GH, Somatomedin-C as well as linear body growth were determined in 28 young diabetic subjects (14 children and 14 preadolescents) and in 20 normal age-matched control. All children and 50% of the preadolescent patients were poorly controlled. The mean hight in both groups was insignificantly lower than that in controls. Serum GH was higher in both groups while SM-C was insignificantly lower in children and insignificantly higher in preadolescents than that in the controls. An inverse correlation between GPP and SM-C in the poorly controlled preadolescent diabetics. These finding may suggest that the decreased linear growth results in poorly controlled diabetics from decreased serum SM-C. Meanwhile, the elevated GH levels may imply a state of GH resistance and may help to explain the inadequate diabetes control among this group patients.

Uptake of radiodine by thyroid glan within 90 min after I.v injection with Na 131 I was studied in male rats which had been i.p injected with either PGB1, PGF1α or PGF2α. The mathematical analysis of radioiodide plasma disappearance curves showed that the rioiodide was kinetically exchanged within a two compartmental model. This is one of the three compartmental model of Wollman and Reed in which total 131 I is considered to be one compartment and blood plasma is the other. The fraction rate constant for migration of 131I from plasma pool towards the reversible pool of the thyroid was effectively enhanced by PGF1α and PGF2α . The reversible fractional rate constant was variably affected. The fractional rate constant that regulates the interconversion of free iodide from labile pool to be oxidized is increased due to the action of PGF1α and decreased by PGF2α.

Released T4 and T3 hormones in albino rat blood after an exogenous administration of PGB1, PG1α and PGF2α were determined and correlated with the serum content of calcium. Results revealed that all the tested PGs significantly raised the levels of T3 and T4 in rat serum, but not affect the serum calcium levels. PGB1 and PGF1α reduced the thyroidal calcium content due to enhancing the ellular permeability. However, the effect of PGF2α due to enhancing the lysosomal proteolytic enzyme activity.

Oxidative stress induced hyperglycemia plays a central role in the pathogenesis of diabetes and its complications in most of the tissues. In the present study the protective roles of lipoic acid and n-acetylcysteine for the treatment of oxidative stress in alloxan-induced diabetic rabbits were studied. The obtained results concluded that lipoic acid or N-acetylcystiene my be hseful for the therapy of oxidative stress associated with hyperglycemia. The beneficial action seems to result mainly from direct scavenging of ROS and restoring glutathione redox state.

The experiment was designed to investigate the role of tannic acid as antioxidant in reduction of the oxidtive damage of ALCL3 in the brin of rat The obtained biochemical and histological results documentd that tannic acid has a prophylactic role in reducing the oxidaive amage in the bain tissues that caused by ALCL3 exposure for80 days in drinking water.

Pospectiv studies suggest that tea may protect against oxidative stress that induced tissue damage. A potential mechanism fr such effect y polyphenolc antioxidant tannic acid derived from tea was evaluated in tis study. Treatment of rats with ALCL3 for 80 days caused moderate toxicity on liver, kidney and splen as evidenced by increased LPO& No and a reduction of SOD,CAT, GST, GSH nd vitamin E.As well as histopathological changes.However improvement was noticed in the rats treated with tannic acid.