Results 21 to 30 of about 71,128 (264)

Norepinephrine Induces Sertoli Cell Ferroptosis via Receptors Desensitization Causing Stress‐Related Male Reproductive Dysfunction

Advanced Science, EarlyView.
Psychological stress activates the sympathetic–adrenal axis, elevating norepinephrine (NE) and suppressing reproductive hormones, thereby impairing male reproduction. Excess NE overactivates and desensitizes β‐adrenergic receptors (β‐ARs), triggering Sertoli cell ferroptosis and disrupting spermatogenesis.
Lingyu Zhang, Shanfeng Gao, Xiaofan Xiong, Xin Liu, Rufeng Li, Xia Wang, Lin Han, Xuan Xiao, Xiaofei Wang, Wen Li, Yongxia Chang, Yuefeng Du, Juan Yang   +12 more
wiley   +1 more source

Low estrogen doses normalize testosterone and estradiol levels to the female range in transgender women

Clinics, 2018
OBJECTIVE: The ideal dosage of cross-sex hormones remains unknown. The aim of this study was to evaluate the luteinizing hormone, follicle-stimulating hormone, testosterone, estradiol and prolactin levels after low-dose estrogen therapy with or without ...
Flávia Siqueira Cunha, Sorahia Domenice, Maria Helena Palma Sircili, Berenice Bilharinho de Mendonca, Elaine Maria Frade Costa   +4 more
doaj   +1 more source

Bisphenol B Exposure Induces Miscarriage by Suppressing Migration/Invasion and Migrasome Formation

Advanced Science, EarlyView.
BPB (Bisphenol B) exposure up‐regulates ER (estrogen receptor) levels, enhances its interactions with the lnc‐HZ04 promoter region, and thus promotes ER‐mediated lnc‐HZ04 transcription. Subsequently, lnc‐HZ04 suppresses TCF4 (transcription factor 4)‐mediated PKCA (protein kinase C alpha) transcription and subsequently suppresses migration/invasion and ...
Wenxin Huang, Manli Wang, Yi Sun, Xiaoping Yue, Xun Li, Yanbing Lin, Geng Guo, Depeng Zhao, Qigang Fan, Xiaoling Ma, Zhihong Zhang, Shuaishuai Xing, Xiaoting Shen, Huidong Zhang   +13 more
wiley   +1 more source

Induction of final oocyte maturation in Cyprinidae fish by hypothalamic factors: a review

Veterinární Medicína, 2009
Gonadotropin-releasing hormone in Cyprinidae as in other Vertebrates functions as a brain signal which stimulates the secretion of luteinizing hormone from the pituitary gland. Two forms of gonadotropin-releasing hormone have been identified in cyprinids,
P. Podhorec, J. Kouril
doaj   +1 more source

Utility of Ovarian Tumour Marker Cancer Antigen-125 and Endocrine Hormonal Status in Polycystic Ovary Syndrome [PDF]

Journal of Clinical and Diagnostic Research, 2018
Introduction: Polycystic Ovary Syndrome (PCOS) is the most common endocrinopathy in women of reproductive age. Women with PCOS are at increased risk of reproductive abnormalities with a prevalence of up to 10%.
Shahid Akbar Mujawar, Vilas Namdeorao Kurude, Harshada Ashok Gaikwad, Vinayak Wamanrao Patil   +3 more
doaj   +1 more source

Effects of Selective Serotonin Reuptake Inhibitor Treatment on Ovarian Reserves in Patients with Depression

Medicina, 2023
Background and Objectives: The goal of this study was to investigate the effect of selective serotonin reuptake inhibitor treatment on the ovarian reserves of women of reproductive age with major depressive disorder.
Soner Gök, Berfin Can Gök, Erkan Alataş, Hande Senol, Osman Zülkif Topak   +4 more
doaj   +1 more source

Disruption of Gut Microbiota‐Mediated De Novo NAD+ Synthesis Contributes to the Development of Polycystic Ovary Syndrome

Advanced Science, EarlyView.
This study demonstrates that patients with PCOS exhibit altered gut microbial profiles, and FMT from PCOS patients induces PCOS‐like symptoms in mice. Specifically, gut dysbiosis reduces 3‐HAA levels in the context of PCOS. Administration of 3‐HAA to mice alleviates PCOS by promoting de novo NAD+ synthesis.
Ke Chen, Huafeng Geng, Yang Zheng, Hongyang Xie, Rui Qin, Junyang Chen, Cong Ye   +6 more
wiley   +1 more source

Secondary Amenorrhea with Low Serum Luteinizing Hormone and Follicle-stimulating Hormone Caused by an Inhibin A- and Inhibin B-producing Granulosa Cell Tumor

Taiwanese Journal of Obstetrics & Gynecology, 2009
Objective: Here, we report a case of secondary amenorrhea with low serum luteinizing hormone and follicle-stimulating hormone levels due to an inhibin A- and inhibin B-producing granulosa cell tumor of the ovary.
Marzieh Agha-Hosseini, Ashraf Aleyaseen, Leili Safdarian, Ladan Kashani   +3 more
doaj   +1 more source

Hepatic KLF9 Deficiency Inhibits Dehydroepiandrosterone (DHEA)‐Induced Polycystic Ovary Syndrome via Liver‐Ovary Axis

Advanced Science, EarlyView.
The study shows that liver is a previously unrecognized extraovarian organ that plays a key role about androgen homeostasis in the development of DHEA‐induced PCOS. DHEA is the most common precursor of active androgen, such as DHT, and KLF9 is required for the conversion of DHEA to DHT and hepatic KLF9 might be a potential therapeutic target for PCOS ...
Jianli Song, Zhaoqing Guan, Guiyi Ji, Jing Wang, Xiurui Yan, Yujie Zhang, Yinliang Zhang, Chunfang Ha, Rong Hu, Yongsheng Chang, Yaolin Zhang, Heng Fan   +11 more
wiley   +1 more source

Assessing Pubertal Timing, Duration, and Related Characteristics in ASXL‐Related Disorders: A Cross‐Sectional Caregiver Survey Analysis

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Limited studies have been conducted on pubertal development in populations with pre‐existing medical conditions. More than 20‐fold increased risk of early puberty has been reported in neurodevelopmental disorders; however, this is a heterogeneous group.
Amanda Piring, Rebecca Hicks, Julia Sloan, Estefania Ramires‐Sanchez, Bianca E. Russell   +4 more
wiley   +1 more source