Репозиторий Университета

© 2017 Taylor  &  Francis. In this study, we tested a hypothesis that a short-term estradiol therapy may reduce blood pressure in preeclampsia by modulating plasma oxidative stress. The intramuscular injections of 10 mg 17-beta-estradiol were prescribed to preeclamptic pregnant women during the 3-day therapy before a labor induction. The analyses of mean arterial pressure (MAP), serum estradiol concentrations, plasma superoxide anion (O2.), hydrogen peroxide (H2O2), nitrites (NO2−), and peroxynitrite (ONOO−) were conducted before and during the therapy. We found that the plasma concentrations of oxidative stress markers, such as O2– and H2O2, are higher in preeclampsia and positively correlated with the MAP value. Moreover, it was shown that the plasma concentration of NO2– as an indicator of NO levels is higher in preeclampsia. A short-term intramuscular application of estradiol decreases the MAP value and the plasma concentration of O.–, H2O2, NO2−, and ONOO– in preeclampsia. A positive correlation between the decrease of MAP values and the decrease of plasma concentrations of O2–, H2O2, and ONOO– was found in preeclampsia during a short-term estradiol therapy. We conclude that the short-term estradiol therapy decreases the MAP value in preeclampsia by modulating the plasma oxidative stress. We speculate that the estradiol metabolism in preeclampsia is an important mechanism that contributes to vascular dysfunction.

© 2018 Dynasty Publishing House. All rights reserved. The objective: To study the effectiveness and long-term outcomes of sclerotherapy for ovarian endometriomas and to substantiate the conditions and indications for minimally invasive intervention. Patients and methods: We analysed 124 interventions performed by the technique of aspiration (sclerosing) therapy of endometrioid ovarian cysts. The patients' age varied from 18 to 42 years, averaging 26.4 ± 4.2 years. The mean diameter of ovarian endomeriomas varied from 25 to 65 mm. In 84 (67.7%) of observations, pathological process was unilateral, in 72.3% - bilateral. 43 (34.6%) women had disease recurrence after previously performed cystectomy, in 28 (22.6%) endometrioid cysts were located in the only ovary and in 7 (5.6%) patients ultrasonography found that the ovary contralateral to endometrioid tumour was sharply decreased and its sections lacked the signs of antral follicles after preceding cystectomy. In fact, in 35 (28.2%) patients endometrioma was diagnosed in the only ovary. All patients after aspiration therapy of endometriomas received dienogest (2 mg) + ethinylestradiol (0.03 mg) (Siluette®, «Gedeon Richter»). Results: The recurrence rate of endometriomas during the first 12 months of follow-up was 38.7%, during the first 3 months of follow-up this parameter did not exceed 9.7%. Within 7-12 months after intervention spontaneous pregnancy occurred in 36.3% (46) of women, ending with childbirth in all cases (with the use of contraception 25 patients - 46%). Conclusion: Sclerotherapy of ovarian endometriomas with ultrasound monitoring of intervention is a minimally invasive method of treating women of reproductive age, ensuring preservation of ovarian reserve. It is not a monotherapy, its outcome is in many respects determined by the adequacy of postoperative hormonal treatment.