Abstract

Abstract Disclosure: I. Mishra: None. S. Jena: None. A.K. Baliarsinha: None. Turner’s Syndrome is a rare genetic disorder caused by complete or partial X chromosome monosomy in a phenotypic female, and is associated with increased morbidity and mortality for cardiovascular diseases, impaired glucose tolerance, liver dysfunction and dyslipidemia. Estrogen therapy was initially focused on pubertal induction and preservation of bone health. Recent longitudinal studies have shown the beneficial effect of estrogen therapy on various metabolic parameters, liver dysfunction and insulin resistance in these patients.To study the effect of estrogen therapy on various metabolic parameters, a cohort of 24 adolescent girls with Turner’s Syndrome planned for hormonal replacement therapy were recruited. Baseline data of detailed history, clinical examination, biochemical evaluation including glycemic status, lipid profile, liver function test and fibroscan were collected. At 6 month follow-up of estrogen replacement, repeat biochemical evaluation and fibroscan were done.The data obtained was entered into Microsoft Excel Worksheet and analysed using Statistical Package for Social Sciences (SPSS, IBM Corp. Released 2020. IBM SPSS Statistics for Windows, Version 27.0. Armonk, NY: IBM Corp.). The normal distribution of data was confirmed with Shapiro-Wilk's test and appropriate parametric tests were employed. Mean and standard deviation were computed for all continuous variables. At baseline visit and 6 month follow up, statistically significant improvement, was found in fasting plasma glucose, post-prandial plasma glucose, fasting insulin, HOMA-IR, VLDL and total bilirubin with estrogen therapy. Maximum reduction (p <0.001) was seen in LDL, AST, ALT and fibroscan values .No improvement was seen in triglyceride, HDL, direct bilirubin and ALP levels. Estrogen has been shown to improve insulin sensitivity and suppress gluconeogenesis by transcription factor Foxo1(1). Hepatoprotective role of estrogen has been explained by anti-inflammatory effects and protection from oxidative stress, mainly mediated via β estrogen receptor(2). Beneficial effects of estrogen on lipid profile have been verified in several studies. We conclude that the benefits of estrogen therapy in Turner’s Syndrome are much beyond the limit of puberty induction and bone health and pleiotropic actions of estrogen still need to be elucidated with further studies. Reference: (1) Yan et al; Estrogen Improves Insulin Sensitivity and Suppresses Gluconeogenesis via the Transcription Factor Foxo1. Diabetes 1 February 2019; 68 (2): 291–304. (2) Koulouri O et al. Liver dysfunction in Turner's syndrome: prevalence, natural history and effect of exogenous oestrogen. ClinEndocrinol (Oxf). 2008 Aug;69(2):306-10. Presentation: Friday, June 16, 2023

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