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Polycystic ovary disease

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https://www.readbyqxmd.com/read/29765334/high-frequency-electrical-modulation-of-the-superior-ovarian-nerve-as-a-treatment-of-polycystic-ovary-syndrome-in-the-rat
#1
Victor Pikov, Arun Sridhar, Hernan E Lara
The polycystic ovary syndrome (PCOS) is the most prevalent ovarian pathology in women, with excessive sympathetic activity in the superior ovarian nerve (SON) playing an important role in inducing the PCOS symptoms in the rats and humans. Our previous studies have shown that surgical transection of the SON can reverse the disease progression, prompting us to explore the effect of the kilohertz frequency alternating current (KHFAC) modulation as a method of reversible non-surgical suppression of the nerve activity in the rodent model of PCOS...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29760297/follicular-hyperandrogenism-and-insulin-resistance-in-polycystic-ovary-syndrome-patients-with-normal-circulating-testosterone-levels
#2
Andi Li, Lu Zhang, Jiajia Jiang, Nan Yang, Ying Liu, Lingbo Cai, Yugui Cui, Feiyang Diao, Xiao Han, Jiayin Liu, Yujie Sun
Polycystic ovary syndrome (PCOS) is a common reproductive disease with high heterogeneity. The role of excess androgen in PCOS etiology remains disputed, since around 20%-50% of PCOS women do not display hyperandrogenemia. The microenvironment of the ovary critically influences follicular development. In the present study, we assessed the role of androgen in PCOS by investigating whether excessive follicular fluid androgen was present in PCOS patients with normal serum androgen levels and influenced by follicular fluid insulin resistance (IR)...
November 1, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/29757997/tetragonia-tetragonioides-pall-kuntze-regulates-androgen-production-in-a-letrozole-induced-polycystic-ovary-syndrome-model
#3
Bo-Jeong Pyun, Hyun Yang, Eunjin Sohn, Song Yi Yu, Dongoh Lee, Dong Ho Jung, Byoung Seob Ko, Hye Won Lee
Tetragonia tetragonioides (Pall.) Kuntze (TTK) is a medicinal plant traditionally used to treat various diseases such as diabetic, inflammatory, and female-related disorders. Polycystic ovary syndrome (PCOS) is a common endocrinological disorder in women of reproductive age, and hyperandrogenism is a prominent feature of PCOS resulting in anovulation and infertility. In this study, we investigated the effects of a TTK extract on androgen generation and regulation of steroidogenic enzymes in vitro and in vivo...
May 14, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29752839/the-role-of-mtor-in-ovarian-cancer-polycystic-ovary-syndrome-and-ovarian-aging
#4
REVIEW
Jin Liu, Dai-Chao Wu, Li-Hua Qu, Hong-Qing Liao, Mei-Xiang Li
The mammalian target of rapamycin, mTOR, is a serine-threonine protein kinase downstream of the phosphatidylinositol 3-kinase (PI3K)-AKT axis. The pathway can regulate cell growth, proliferation, and survival by activating ribosomal kinases. Recent studies have implicated the mTOR signaling pathway in ovarian neoplasms, polycystic ovary syndrome (PCOS) and premature ovarian failure (POF). Preclinical investigations have demonstrated that the PI3K/AKT/mTOR pathway is frequently activated in the control of various ovarian functions...
May 12, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29747678/a-potential-link-between-polycystic-ovary-syndrome-and-non-alcoholic-fatty-liver-disease-an-update-meta-analysis
#5
Jia Wu, Xin-Yu Yao, Ru-Xia Shi, Su-Fen Liu, Xiao-Yong Wang
BACKGROUND: Epidemiological literature regarding the effect of polycystic ovary syndrome (PCOS) as a risk factor for non-alcoholic fatty liver disease (NAFLD) remains inconsistent. Furthermore, it remains debatable whether NAFLD is associated with PCOS as a consequence of shared risk factors or whether PCOS contributes to NAFLD in an independent fashion. Therefore, this meta-analysis was conducted. METHODS: This meta-analysis was conducted in accordance with the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)...
May 10, 2018: Reproductive Health
https://www.readbyqxmd.com/read/29728876/kisspeptin-and-lh-pulsatile-temporal-coupling-in-pcos-patients
#6
Krzysztof Katulski, Agnieszka Podfigurna, Adam Czyzyk, Blazej Meczekalski, Alessandro D Genazzani
PURPOSE: To evaluate the temporal coupling between spontaneous kisspeptin and luteinizing hormone (LH) pulsatile releases in polycystic ovary syndrome (PCOS) patients. METHODS: We examined 71 patients diagnosed with PCOS. A 2 h pulsatility study was performed to evaluate serum kisspeptin and LH pulse frequency and concentration, sampled every 10 min; baseline follicle-stimulating hormone (FSH), estradiol (E2), prolactin (PRL), cortisol, 17-hydroksy-progesterone (17OHP), testosterone (T), free testosterone index (FTI, and insulin levels were also measured...
May 4, 2018: Endocrine
https://www.readbyqxmd.com/read/29725371/analyses-of-risk-factors-for-polycystic-ovary-syndrome-complicated-with-non-alcoholic-fatty-liver-disease
#7
Jianhai Zhang, Jian Hu, Chunxia Zhang, Yanni Jiao, Xiang Kong, Wei Wang
The risk factors related to polycystic ovary syndrome (PCOS) patients complicated with non-alcoholic fatty liver disease (NAFLD) were investigated. A total of 188 PCOS patients treated in Shengli Oilfield Central Hospital (Dongying, China) from February 2014 to February 2015 were retrospectively analyzed as PCOS group, and PCOS group was further divided into NAFLD group and non-NAFLD (N-NAFLD) group according to the liver B ultrasound. In the same time-period, 65 healthy people were selected as normal control group...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29720538/sympathetic-innervation-regulates-macrophage-activity-in-rat-with-polycystic-ovary
#8
Florencia Figueroa, Gisela Mendoza, Dario Cardozo, Fabian Mohamed, Liliana Oliveros, Myriam Liliana Forneris
Polycystic ovary syndrome (PCOS) is a low grade inflammatory disease characterized by hyperandrogenism and ovarian hyperinnervation. The aim of this work is to investigate whether in vivo bilateral superior ovarian nerve (SON) section in adult rats with estradiol valerate induced polycystic ovarian syndrome (PCO rats) affects macrophage spleen cells (MФ) and modifies the steroidogenic ability of their secretions. Culture media of MФ from PCO rats and PCO rats with SON section (PCO-SON rats) were used to stimulate in vitro intact ovaries...
May 2, 2018: Journal of Endocrinology
https://www.readbyqxmd.com/read/29719598/hyperandrogenism-and-insulin-resistance-contribute-to-hepatic-steatosis-and-inflammation-in-female-rat-liver
#9
Yuehui Zhang, Fanci Meng, Xiaoyan Sun, Xue Sun, Min Hu, Peng Cui, Edvin Vestin, Xin Li, Wei Li, Xiao-Ke Wu, John-Olov Jansson, Linus R Shao, Håkan Billig
Women with polycystic ovary syndrome (PCOS) are at high risk for nonalcoholic fatty liver disease (NAFLD). While insulin resistance is a common trait for both PCOS and NAFLD, hyperandrogenism is also considered to be a key factor contributing to PCOS, and the molecular mechanisms behind the interactions between insulin resistance and hyperandrogenism in the female liver remain largely unexplored. Using chronic treatment with insulin and/or human chorionic gonadotropin (hCG), we showed that all female rats with different treatments induced imbalance between de novo lipogenesis and mitochondrial β-oxidation via the Pparα/β-Srebp1/2-Acc1 axis, resulting in varying degrees of hepatic steatosis...
April 6, 2018: Oncotarget
https://www.readbyqxmd.com/read/29716734/the-difficulties-of-pseudo-cushing-s-syndrome-or-non-neoplastic-hypercortisolism
#10
Olivier Chabre
Pseudo-Cushing's syndrome covers different pathological conditions responsible for mild-to-moderate ACTH-dependent hypercortisolism, related not to an ACTH-secreting tumor but rather to CRH and/or AVP hypothalamic secretion through activation of various neural pathways, in patients generally displaying excess central adiposity. It is better termed "non-neoplastic hypercortisolism" (NNH). The main conditions implicated in NNH comprise: neuropsychiatric disorder, alcohol abuse, insulin-resistant obesity, polycystic ovary syndrome, and end-stage kidney disease...
April 28, 2018: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29707880/risk-factors-for-adverse-maternal-and-perinatal-outcomes-in-women-with-preeclampsia-analysis-of-1396-cases
#11
Xun Li, Weishe Zhang, Jianhua Lin, Huai Liu, Zujing Yang, Yincheng Teng, Si Duan, Xinxiu Lin, Yingming Xie, Yuanqiu Li, Liangqun Xie, Qiaozhen Peng, Lu Xia
Preeclampsia is a major cause of adverse maternal and perinatal outcomes, but how to identify women and fetuses at increased risk for later adverse events is a challenge. This study aimed to investigate the risk factors for adverse maternal and perinatal outcomes in women with preeclampsia. Data from 1396 women with preeclampsia were retrospectively collected and analyzed. Eighteen candidate risk factors and 12 adverse outcomes were investigated. The following factors were found to be significantly associated with at least one adverse outcome: maternal age 35 years or older, multiple birth, the usage of assisted reproductive technology, living in a rural area, history of pregnancy-induced hypertension, male fetus, multigravida, or having polycystic ovary syndrome, hemolysis, elevated liver enzymes, and low platelet count syndrome, intrahepatic cholestasis of pregnancy, cardiovascular disease, gestational diabetes mellitus, systemic lupus erythematosus, thyroid disease, or liver disease...
April 30, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29693142/microrna-33b-5p-is-overexpressed-and-inhibits-glut4-by-targeting-hmga2-in-polycystic-ovarian-syndrome-an-in-vivo-and-in-vitro-study
#12
Ying Yang, Hua Jiang, Ling Xiao, Xuezhou Yang
Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disease, but its pathogenesis remains largely unknown. The present study explored the role of microRNA‑33b‑5p (miR‑33b‑5p) in PCOS pathogenesis, with a particular focus on its role in regulating glucose transporter 4 (GLUT4). A rat model of PCOS was developed by injecting female SD rats with insulin and HCG. miR‑33b‑5p, GLUT4, sterol regulatory element‑binding protein 1 (SREBF1), and high mobility group A2 (HMGA2) expression in rat ovarian tissues was examined by qRT‑PCR and immunohistochemistry...
April 18, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29684121/incidence-and-prevalence-of-diabetes-and-cost-of-illness-analysis-of-polycystic-ovary-syndrome-a-bayesian-modelling-study
#13
Tao Ding, Paul J Hardiman, Irene Petersen, Gianluca Baio
STUDY QUESTION: What is the incidence/prevalence of type 2 diabetes in women with polycystic ovary syndrome (PCOS) and the economic burden associated with PCOS in the UK? SUMMARY ANSWER: The incidence and prevalence of type 2 diabetes in women with PCOS are 3-33 per 1000 person years and 26.5%, respectively, with an associated annual healthcare burden of at least £237 million in the UK. WHAT IS KNOWN ALREADY: Although observational studies have been designed to assess the incidence of diabetes in women with PCOS, these have been open to criticism because of short periods of follow-up, small sample sizes or invalidated diagnosis of PCOS...
April 19, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29680975/increased-fibulin-1-plasma-levels-in-polycystic-ovary-syndrome-pcos-patients-possible-contribution-to-the-link-between-pcos-and-cardiovascular-risk
#14
E Scarinci, A Tropea, G Russo, G Notaristefano, C Messana, O Alesiani, S M Fabozzi, A Lanzone, R Apa
PURPOSE: To investigate a possible relation between fibulin-1 plasma levels and PCOS. DESIGN: ELISA quantitative determination of human fibulin-1. METHODS: 50 women with PCOS and 40 control patients who attended the Unit of Human Reproductive Pathophysiology, Università Cattolica del Sacro Cuore, Rome, were enrolled. Ultrasonographic pelvic examinations, hormonal profile assays, oral tolerance test OGTT, lipid profile and ELISA quantitative determination of human fibulin-1 were performed...
April 21, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29678491/polycystic-ovary-syndrome-pcos-an-inflammatory-systemic-lifestyle-endocrinopathy
#15
REVIEW
Seema Patel
Polycystic ovary syndrome (PCOS) is an endocrine disorder, afflicting females of reproductive age. This syndrome leads to infertility, apart from a gamut of other metabolic co-morbidities such as insulin resistance, obesity, cardiovascular problems, including a litany of other health issues. PCOS is a polygenic, polyfactorial, systemic, inflammatory, dysregulated steroid state, autoimmune disease, manifesting largely due to lifestyle errors. The advent of biochemical tests and ultrasound scanning has enabled the detection of PCOS in the affected females...
April 17, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29663637/reproductive-health-obesity-and-cardiometabolic-risk-factors-among-samoan-women
#16
H Maredia, N L Hawley, G Lambert-Messerlian, U Fidow, M S Reupena, T Naseri, S T McGarvey
OBJECTIVES: Obesity leads to deleterious effects on not only cardiovascular health but also on the reproductive health of women. We estimate the prevalence of menstrual irregularity and of polycystic ovarian syndrome (PCOS) in Samoan women, among whom obesity prevalence is extremely high. We explore the association of these reproductive health conditions with adiposity, cardiometabolic risk factors, and androgen levels. METHODS: A cross-sectional sample of Samoan women 25-39 years of age (n = 470) from a larger population-based genome-wide association study of adiposity and cardiometabolic disease was assessed for the prevalence of oligomenorrhea/amenorrhea (OM/AM) using a self-reported questionnaire...
April 16, 2018: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29662963/facilitating-and-inhibiting-factors-related-to-treatment-adherence-in-women-with-polycystic-ovary-syndrome-a-qualitative-study
#17
Fatemeh Bazarganipour, Seyed Abdolvahab Taghavi, Helen Allan, Nazafarin Hosseini
Background: Adherence issues in polycystic ovary syndrome (PCOS) patients have not been examined thoroughly. Patients report prolonged periods of treatment and side effects of the drug as the most common reason for withdrawal from treatment. To improve the effective management of PCOS patients, it is fundamental to understand facilitating and inhibiting factors to treatment adherence. Objective: To explore facilitating/inhibiting factors related to treatment adherence among PCOS patients...
September 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29660344/hyperhomocysteinemia-and-hyperandrogenemia-share-pcsk9-ldlr-pathway-to-disrupt-lipid-homeostasis-in-pcos
#18
Kalyani Mondal, Pratip Chakraborty, S N Kabir
Women with polycystic ovary syndrome (PCOS) are at increased risk of cardiovascular diseases (CVD); however, the independent role of PCOS in the incident CVD remains unknown. There are reports that hyperhomocysteinemia (HHcy), a potential cause of CVD, is frequently associated with PCOS. The present study investigates the independent attributes of hyperandrogenemia (HA), the integral associate of PCOS, and HHcy in causing atherogenic dyslipidemia. Twenty-five-day old rats were treated with homocysteine (Hcy) at 50 mg/kg/day dose level for 12 weeks...
April 13, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29648472/downregulation-of-serum-long-noncoding-rna-gas5-may-contribute-to-insulin-resistance-in-pcos-patients
#19
Haiyan Lin, Weijie Xing, Yu Li, Yanxin Xie, Xiaoshi Tang, Qingxue Zhang
Polycystic ovary syndrome (PCOS) is a common endocrine disease that affects reproductive-aged women and mostly characterized by insulin resistance (IR). The underlying mechanism remains unknown. Long noncoding RNAs (lncRNAs) have been demonstrated to be involved in various levels of biological regulation process of cell development, metabolism, and differentiation. This study aims to investigate the relationship between IR and differential expression of lncRNA Growth-arrest specific transcript 5 (GAS5) in patients' serum with and without PCOS...
April 12, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29622662/potential-genetic-polymorphisms-predicting-polycystic-ovary-syndrome
#20
Yao Chen, Shu-Ying Fang
Polycystic ovary syndrome (PCOS) is a heterogenous endocrine disorder with typical symptoms of oligomenorrhoea, hyperandrogenism, hirsutism, obesity, insulin resistance and increased risk of type 2 diabetes mellitus. Extensive evidence indicates that PCOS is a genetic disease and numerous biochemical pathways have been linked with its pathogenesis. A number of genes from these pathways have been investigated, which include those involved with steroid hormone biosynthesis and metabolism, action of gonadotropin and gonadal hormones, folliculogenesis, obesity and energy regulation, insulin secretion and action and many others...
April 5, 2018: Endocrine Connections
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