Background: Pre-eclampsia is culmination of a multi-step process that related in part to elevated oxidative stress and associated with hyperurecimia.
Patients and methods: Thirty normotensive and hundred pre-eclamptic pregnant women attending to Al-Basra hospital of pediatrics, obstetrics and gynecology were participated in this study. The patients were randomized into six groups. They were treated with methyldopa alone, methyldopa plus vitamin C, methyldopa plus vitamin E, methyldopa plus vitamin C and E, and methyldopa plus allopurinol. The oxidative stress (MDA), renal function parameters, systolic and diastolic blood pressure were evaluated before treatment and 14 day after initiation of therapy.
Results: Using allopurinol, vitamin C, vitamin E, and a combination of vitamin C and E together with methyldopa in pre-eclampsia can produce a significant reduction in the level of oxidative stress, on the other hand, some of these supplemental antioxidants can produce a significant reduction in systolic and diastolic blood pressures, serum creatinine and proteinurea as well as serum uric acid concentration in different extent.
Conclusion: Antioxidants and allopurinol when co-administrated with methyldopa, improves the maternal and biochemical indicators of pre-eclampsia and produce a better control of blood pressure.
In this paper, estimation of system reliability of the multi-components in stress-strength model R(s,k) is considered, when the stress and strength are independent random variables and follows the Exponentiated Weibull Distribution (EWD) with known first shape parameter θ and, the second shape parameter α is unknown using different estimation methods. Comparisons among the proposed estimators through Monte Carlo simulation technique were made depend on mean squared error (MSE) criteria