Impact of Estradiol on Circulating Markers of Oxidative Stress among Hypertensive Postmenopausal Women with Co-morbidities

  • Dr Mrs Asok Salini Research Scholar in Biotechnology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, India
  • Dr Govindaswamy Poornima Jeyanthi Professor in Biochemistry, Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, India
Keywords: Antioxidant activity, Catalase, Estradiol, Hypertension, Menopause

Abstract

Background: Oxidative stress plays a key role in the pathogenesis of several age-associated diseases. The antioxidant properties of estradiol reduce oxidative stress related complications. Menopause is typified by a drop in endogenous estradiol that might subsequently affect women’s wellbeing.

Materials and Methods: 100 postmenopausal women were selected and classed into four groups. Estradiol (E2) and enzymatic antioxidant status were assessed among normotensive postmenopausal women (group-1), hypertensive postmenopausal women (group-2), hypertensive postmenopausal women with diabetes (group-3) and hypertensive postmenopausal women with renal insufficiency (group-4). Kruskal-Wallis test and correlation analysis were performed using SPSS16.0 statistical software.

Results: Estradiol (E2), catalase (CAT), superoxide dismutase activity (SOD), glutathione peroxidase (GPx) and glutathione-S-transferase (GST) activities were significantly decreased in hypertensive postmenopausal women with diabetes (group-3) and hypertensive postmenopausal women with renal insufficiency (group-4) compared normotensive postmenopausal women (group-1). Catalase, glutathione peroxidise and glutathione-S-transferase activities were significantly reduced in the three experimental groups compared to normotensive control. Estradiol exhibited significant positive correlations with catalase, superoxide dismutase and glutathione peroxidase.

Conclusion: Elevated oxidative stress along with drop in estradiol levels in postmenopausal women seems to be aggravated by co-morbid conditions.

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CITATION
DOI: 10.17511/ijmrr.2014.i06.07
Published: 2014-12-31
How to Cite
1.
Salini A, Poornima Jeyanthi G. Impact of Estradiol on Circulating Markers of Oxidative Stress among Hypertensive Postmenopausal Women with Co-morbidities. Int J Med Res Rev [Internet]. 2014Dec.31 [cited 2024Jul.3];2(6):544-52. Available from: https://ijmrr.medresearch.in/index.php/ijmrr/article/view/156
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