title: Depression-Like Behavior in a Dehydroepiandrosterone-Induced Mouse Model of Polycystic Ovary Syndrome.
abstract: Patients with polycystic ovary syndrome (PCOS) can suffer from psychological disorders, among which depression is the most commonly diagnosed. However, the pathogenesis is still unclear. The aims of the present study were to investigate the behaviors of dehydroepiandrosterone (DHEA)-induced PCOS mice, the effects of high-fat diet (HFD) on mouse behaviors, and the underlying mechanism. Prepubertal C57BL/6 mice (25 days of age) were divided into four groups and injected daily with the vehicle sesame oil or DHEA on the normal chow or a 60% HFD for 20 consecutive days. Depression-like behavior of the mice was examined using a forced swim test, tail suspension test, and open field test. Thereafter, the animals were killed and four brain regions were collected. The brain levels of monoamines and their metabolites, including norepinephrine, serotonin, 5-hydroxy-3-indolacetic acid, dopamine, and 3,4-hydroxyphenylacetic acid, were analyzed by HPLC. Our data show that DHEA-treated mice exhibited depression-like behavior according to the results from behavioral assessment. The brain contents of monoamines and/or their metabolites decreased in DHEA-treated mice compared with controls. HFD did not seem to markedly affect the behavioral responses, the brain monoamines, or their metabolites in the mice. These findings suggest that DHEA treatment induced depression-like behavior in PCOS mice, possibly through down-regulation of brain monoamines and/or their metabolites, which implies the contribution of hyperandrogenism to the psychological symptoms of women with PCOS.
authors.affiliation: Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.
authors.forename: Qiuxiao
authors.initials: Q
authors.lastname: Yu
authors.affiliation: Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.
authors.forename: Shuxian
authors.initials: S
authors.lastname: Hao
authors.affiliation: Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.
authors.forename: Huamin
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Song
authors.affiliation: Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.
authors.forename: Qiyang
authors.initials: Q
authors.lastname: Shen
authors.affiliation: Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China kangjihong@bjmu.edu.cn.
authors.forename: Jihong
authors.initials: J
authors.lastname: Kang
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects* / Q000502:physiology; D015306:Biogenic Monoamines / Q000378:metabolism; D001921:Brain / Q000187:drug effects / Q000378:metabolism; D003687:Dehydroepiandrosterone / Q000633:toxicity*; D003863:Depression / Q000209:etiology* / Q000378:metabolism; D059305:Diet, High-Fat / Q000009:adverse effects; D004195:Disease Models, Animal; D015536:Down-Regulation / Q000187:drug effects; D005260:Female; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL; D011085:Polycystic Ovary Syndrome / Q000150:complications / Q000209:etiology / Q000523:psychology*; D014018:Tissue Distribution
chemical_list: D015306:Biogenic Monoamines; D003687:Dehydroepiandrosterone
keywords: dehydroepiandrosterone; depression; monoamines; polycystic ovary syndrome