The influence of combined oral contraceptives containing drospirenone on hypothalamic

New Exercise and Fitness Review

The influence of combined oral contraceptives containing drospirenone on hypothalamic

The influence of combined oral contraceptives containing drospirenone on hypothalamic-pituitary-adrenocortical axis activity and glucocorticoid receptor expression and function in women with polycystic ovary syndrome.

Hormones (Athens). 2014 Nov 5;

Authors: Macut D, Božic Antic I, Nestorov J, Topalovic V, Bjekic Macut J, Panidis D, Kastratovic Kotlica B, Papadakis E, Matic G, Vojnovic Milutinovic D

Abstract
OBJECTIVE: Most women with PCOS have increased adrenal androgen production, enhanced peripheral metabolism of cortisol and elevation in urinary excretion of its metabolites. Increased cortisol clearance in PCOS is followed by a compensatory overdrive of the hypothalamic-pituitary-adrenocortical (HPA) axis. We hypothesized that oral contraceptives containing ethinylestradiol and drospirenone (EE-DRSP) could modulate glucocorticoid receptor (GR) expression and function and thus affect HPA axis activity in PCOS patients.
DESIGN: We analyzed 12 women with PCOS (age 24.17±4.88 years; body mass index 22.05±3.97 kg/m2) treated for 12 months with EE-DRSP and 20 BMI matched controls. In all subjects testosterone, dehydroepiandrosterone sulfate (DHEAS), sex hormone binding globulin (SHBG), cortisol (basal and after dexamethasone), concentrations of GR protein, phospo-GR211 protein, number of GR per cell (Bmax) and its equilibrium dissociation constant (KD) were measured.
RESULTS: Before treatment, increased concentrations of testosterone and DHEAS (p

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The influence of combined oral contraceptives containing drospirenone on hypothalamic

Combined treatment of isoflavone supplementation and exercise restores the changes in

New Exercise and Fitness Review

Combined treatment of isoflavone supplementation and exercise restores the changes in

Background:Postmenopausal women experience adverse physiological changes caused by estrogen deprivation. Here, we hypothesized that the administration of isoflavone, a phytoestrogn, and/or physical exercise could reverse changes in the levels of hepatic enzymes disturbed by loss of estrogen to ameliorate postmenopause-related health problems.Methods:Thirty-week-old female Sprague?Dawley rats were divided into five groups: a sham-operated (SHAM) group, ovariectomized groups on a regular diet with exercise (EXE) and without exercise (OVX), and ovariectomized groups on an isoflavone supplemented diet with (ISO?+?EXE) and without exercise (ISO). Proteomic tools were employed to identify candidate hepatic proteins that were differentially expressed among the five animal groups.Results:INMT was detected in the SHAM but not in all of the ovariectomized rats. Seven proteins (PPIA, AKR1C3, ALDH2, PSME2, BUCS1, OTC, and GAMT) were identified to have differential expression among the groups. When compared to the SHAM group, the ovariectomy elevated the levels of PPIA, BUCS1, PSME2, AKR1C3, and GAMT while decreasing ALDH2 and OTC. Among these OVX-induced changes, OVX-increased BUCS1 and GAMT levels were noticeably decreased by ISO or EXE and further greatly down-regulated by ISO?+?EXE. In the case of PSME2, ISO and EXE further increased OVX-upregulated expression levels but ISO?+?EXE greatly reduced OVX-increased levels. On the other hand OVX-lowered OTC levels were elevated by ISO, EXE, or ISO?+?EXE. The protein levels of ALDH2, PPIA, and AKR1C3 were not significantly reverted by ISO, EXE or ISO?+?EXE.Conclusion:The combination of an isoflavone diet and exercise partly reversed ovariectomy-induced changes in hepatic protein expression levels. Our data suggest that the combinatory regimen of isoflavone supplementation and exercise may be beneficial to menopausal women through modulating hepatic protein expression profiles.

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Combined treatment of isoflavone supplementation and exercise restores the changes in