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Androgen Action in Adipose Tissue and the Brain are Key Mediators in the Development of PCOS Traits in a Mouse Model.
Cox, Madeleine J; Edwards, Melissa C; Rodriguez Paris, Valentina; Aflatounian, Ali; Ledger, William L; Gilchrist, Robert B; Padmanabhan, Vasantha; Handelsman, David J; Walters, Kirsty A.
Affiliation
  • Cox MJ; Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, Australia.
  • Edwards MC; Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, Australia.
  • Rodriguez Paris V; Andrology Laboratory, ANZAC Research Institute, University of Sydney, Sydney, Australia.
  • Aflatounian A; Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, Australia.
  • Ledger WL; Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, Australia.
  • Gilchrist RB; Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, Australia.
  • Padmanabhan V; Fertility and Research Centre, School of Women's & Children's Health, University of New South Wales, Sydney, Australia.
  • Handelsman DJ; Department of Pediatrics, University of Michigan, Ann Arbor, Michigan.
  • Walters KA; Andrology Laboratory, ANZAC Research Institute, University of Sydney, Sydney, Australia.
Endocrinology ; 161(7)2020 07 01.
Article in En | MEDLINE | ID: mdl-32301482
Polycystic ovary syndrome (PCOS) is a complex disorder characterized by endocrine, reproductive, and metabolic abnormalities. Despite PCOS being the most common endocrinopathy affecting women of reproductive age, the etiology of PCOS is poorly understood, so there is no cure and symptomatic treatment is suboptimal. Hyperandrogenism is the most consistent feature observed in PCOS patients, and recently aberrant neuroendocrine signaling and adipose tissue function have been proposed as playing a role in the development of PCOS. To investigate the role of adipose tissue and the brain as key sites for androgen receptor (AR)-mediated development of PCOS, we combined a white and brown adipose and brain-specific AR knockout (AdBARKO) mouse model with a dihydrotestosterone (DHT)-induced mouse model of PCOS. As expected, in wildtype (WT) control females, DHT exposure induced the reproductive PCOS traits of cycle irregularity, ovulatory dysfunction, and reduced follicle health, whereas in AdBARKO females, DHT did not produce the reproductive features of PCOS. The metabolic PCOS characteristics of increased adiposity, adipocyte hypertrophy, and hepatic steatosis induced by DHT in WT females were not evident in DHT-treated AdBARKO females, which displayed normal white adipose tissue weight and no adipocyte hypertrophy or liver steatosis. Dihydrotestosterone treatment induced increased fasting glucose levels in both WT and AdBARKO females. These findings demonstrate that adipose tissue and the brain are key loci of androgen-mediated actions involved in the developmental origins of PCOS. These data support targeting adipocyte and neuroendocrine AR-driven pathways in the future development of novel therapeutic strategies for PCOS.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Polycystic Ovary Syndrome / Brain / Receptors, Androgen / Adipose Tissue / Disease Models, Animal Type of study: Etiology_studies / Evaluation_studies / Prognostic_studies Limits: Animals Language: En Journal: Endocrinology Year: 2020 Document type: Article Affiliation country: Australia Country of publication: United States

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Polycystic Ovary Syndrome / Brain / Receptors, Androgen / Adipose Tissue / Disease Models, Animal Type of study: Etiology_studies / Evaluation_studies / Prognostic_studies Limits: Animals Language: En Journal: Endocrinology Year: 2020 Document type: Article Affiliation country: Australia Country of publication: United States