Review
Cell Biology
Xue-Ling Xu, Shou-Long Deng, Zheng-Xing Lian, Kun Yu
Summary: Female infertility is mainly caused by ovulation disorders, with polycystic ovary syndrome (PCOS) being the most prevalent. PCOS is associated with abnormal function of estrogen and estrogen receptors (ERs), affecting cellular activities. Selective estrogen receptor modulators (SERMs) like tamoxifen and clomiphene have shown clinical applications for subfertility with PCOS, but further understanding of the role of ER in PCOS is needed.
Article
Biochemistry & Molecular Biology
Youngjae Ryu, Yong Jin Kim, Yoon Young Kim, Jungwoo Kim, Sung Woo Kim, Hoon Kim, Seung Yup Ku
Summary: This study successfully established a PCOS model in mice using STZ, with findings indicating that low doses of STZ can induce PCOS features without causing diabetes features. Different doses of STZ treatment had varying effects on body weight, blood glucose levels, and hormone levels in mice.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Endocrinology & Metabolism
Izabela Chudzicka-Strugala, Anna Kubiak, Beata Banaszewska, Barbara Zwozdziak, Martyna Siakowska, Leszek Pawelczyk, Antoni J. Duleba
Summary: The study demonstrated that in women with PCOS, lifestyle modifications combined with synbiotic supplementation can significantly decrease body weight, waist circumference, hip circumference, and thigh circumference, as well as lead to a significant reduction in serum testosterone levels.
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2021)
Article
Endocrinology & Metabolism
Izabela Chudzicka-Strugala, Anna Kubiak, Beata Banaszewska, Barbara Zwozdziak, Martyna Siakowska, Leszek Pawelczyk, Antoni J. Duleba
Summary: The study found that synbiotic supplementation can enhance the effects of lifestyle modifications on weight and testosterone levels in patients with PCOS, leading to significant improvements.
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2021)
Article
Medical Laboratory Technology
Ying-yi Luan, Lei Zhang, Yi-qiu Peng, Ying-ying Li, Rui-xia Liu, Cheng-hong Yin
Summary: Polycystic ovarian syndrome (PCOS) is a common endocrine disorder affecting females, characterized by chronic low-level inflammation, hormonal and immune dysregulation. It can lead to infertility, irregular menstruation, acne, hirsutism, and obesity.
CLINICA CHIMICA ACTA
(2022)
Article
Reproductive Biology
Somayeh Kouhetsani, Homayoun Khazali, Hassan Rajabi-Maham
Summary: This study aimed to clarify the effects of orexin and Substance-P (SP) neuropeptide receptor antagonists on ovarian steroidogenesis in a rat model of polycystic ovary syndrome (PCOS). The results showed that the antagonists reduced Cyp19a1 gene expression and increased testosterone levels, suggesting their potential role in modulating abnormal ovarian steroidogenesis in PCOS.
JOURNAL OF OVARIAN RESEARCH
(2023)
Article
Endocrinology & Metabolism
Luigi Barrea, Ludovica Verde, Claudia Vetrani, Annamaria Docimo, Giulia de Alteriis, Silvia Savastano, Annamaria Colao, Giovanna Muscogiuri
Summary: This study investigated the prevalence of different chronotype categories in women with PCOS and their impact on hormonal and metabolic aspects. The findings showed a higher prevalence of evening chronotype in women with PCOS, which was associated with worse hormonal and metabolic profiles.
JOURNAL OF PINEAL RESEARCH
(2023)
Review
Evolutionary Biology
Natalie L. Dinsdale, Bernard J. Crespi
Summary: Evolutionary and comparative approaches can provide new insights into human adaptation and disease. The study proposes the diametric disorder hypothesis between endometriosis and PCOS, with support from diverse fields of research. Findings suggest that PCOS and endometriosis represent maladaptive extremes of female life-history variation and expression of sexually dimorphic female reproductive traits.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Endocrinology & Metabolism
Ali Abbara, Maria Phylactou, Pei Chia Eng, Sophie A. Clarke, Toan D. Pham, Tuong M. Ho, Kah Yan Ng, Edouard G. Mills, Kate Purugganan, Tia Hunjan, Rehan Salim, Alexander N. Comninos, Lan N. Vuong, Waljit S. Dhillo
Summary: This study compared the endocrine response to triptorelin in women with different reproductive conditions. It found that women with PCOS had a lesser increase in FSH levels compared to healthy women and HA women after triptorelin administration. Additionally, women with polycystic ovaries had lower FSH levels after triptorelin, both with and without ovarian stimulation.
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2023)
Article
Endocrinology & Metabolism
Xiang Hong, Pengfei Qin, Jiechen Yin, Yong Shi, Yan Xuan, Zhengqi Chen, Xu Zhou, Hong Yu, Danhong Peng, Bei Wang
Summary: The vaginal microbiome of PCOS patients is associated with specific clinical manifestations, such as acanthosis nigricans, intermenstrual bleeding, pregnancy history, testosterone level, and anti-mullerian hormone level. The abundance of certain bacterial species, such as Lactobacillus crispatus, was found to be higher among PCOS patients with elevated testosterone levels. Further studies are needed to explore the microbiota and molecular mechanisms underlying this relationship.
FRONTIERS IN ENDOCRINOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Kristen J. Polinski, Sonia L. Robinson, Diane L. Putnick, Rajeshwari Sundaram, Erin Bell, Paule V. Joseph, James Segars, Weihua Guan, Robert M. Silver, Enrique F. Schisterman, Sunni L. Mumford, Edwina H. Yeung
Summary: Research suggests that newborns exposed to PCOS, particularly those born to mothers with hirsutism, have differential DNA methylation at certain CpG sites. Additionally, newborns of women with higher preconception testosterone levels also show differential DNA methylation. These differences may be under fetal genetic control.
Review
Endocrinology & Metabolism
Vahid Maleki, Ehsaneh Taheri, Parisa Varshosaz, Fatemeh Pourteymour Fard Tabrizi, Jalal Moludi, Hamed Jafari-Vayghan, Mahdi Shadnoush, Seyed Hossein Yahyazadeh Jabbari, Mehri Seifoleslami, Mohammad Alizadeh
Summary: Green tea extract (GTE) may have therapeutic effects on polycystic ovary syndrome (PCOS), mainly reflected in weight loss and improvement of glycemic levels. Current research results show that GTE can reduce testosterone and luteinizing hormone levels, and increase follicle-stimulating hormone and progesterone levels in animal models. Additional studies are needed to determine the effects and mechanisms of GTE in PCOS.
REPRODUCTIVE BIOLOGY AND ENDOCRINOLOGY
(2021)
Article
Endocrinology & Metabolism
Klara Beitl, Didier Dewailly, Rudolf Seemann, Marlene Hager, Jakob Buenker, Daniel Mayrhofer, Iris Holzer, Johannes Ott
Summary: Polycystic ovary syndrome (PCOS) and functional hypothalamic amenorrhea (FHA) are the two most frequent causes of secondary amenorrhea, and distinguishing between them remains challenging. A retrospective case-control study found significant differences in hormone levels and protein binding globulin between PCOS-D patients and FHA-PCOM patients. The authors proposed a model including serological parameters as a reliable tool to distinguish between the two conditions.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Endocrinology & Metabolism
Marlene Hager, Johannes Ott, Julian Marschalek, Marie-Louise Marschalek, Clemens Kinsky, Rodrig Marculescu, Didier Dewailly
Summary: This study examines the differences in response to a gonadotropin releasing hormone (GnRH) stimulation test and pulsatile GnRH treatment between women with functional hypothalamic amenorrhea (FHA) with and without polycystic ovarian morphology (PCOM). The results suggest that the presence of PCOM in FHA patients is associated with lower anti-Mullerian hormone (AMH) levels and a higher LH increase after the stimulation test. Furthermore, pulsatile GnRH treatment appears to increase AMH levels in FHA patients without PCOM. These findings indicate the existence of specific systemic and intra-ovarian abnormalities in PCOM.
REPRODUCTIVE BIOLOGY AND ENDOCRINOLOGY
(2022)
Article
Endocrinology & Metabolism
Hao-Ran Shen, Xiao Xu, Xue-Lian Li
Summary: This study found that berberine (BBR) can reduce insulin resistance and testosterone levels in PCOS rats by inhibiting cell apoptosis and regulating the expression levels of various genes.
REPRODUCTIVE BIOLOGY AND ENDOCRINOLOGY
(2021)