Objective: To study the age-specific distribution of antimüllerian hormone (AMH) and describe the association of AMH with androgenic and metabolic profiles at different ages.
Design: Cross-sectional study.
Setting: University hospital.
Patient(s): A total of 6,763 Chinese women from birth to menopause.
Intervention(s): None.
Main Outcome Measure(s): Anthropometric parameters (height, weight, and blood pressure), and levels of AMH and testosterone, glucose metabolism, and lipid profiles.
Result(s): According to the level of AMH, four age phases were established: childhood (0-10 years), adolescence (11-18 years), reproductive age (19-50 years), and advanced age (≥51 years). During childhood and adolescence, AMH levels increased, reaching a peak at 18 years. A decline occurred thereafter during the reproductive-age period until the age of 50 years, and it remained at a low level above 0 onward. We found that AMH was negatively correlated with testosterone in childhood (r = -0.25), but was positively correlated with testosterone and the free androgen index in adolescence (r = 0.30; r = 0.26, respectively) as well as during the reproductive phases (r = 0.28; r = 0.31, respectively). No correlation was observed between AMH and body mass index, fasting blood glucose, fasting insulin, the homeostasis model assessment, total cholesterol, triglycerides, low-density lipoprotein, or high-density lipoprotein at any phase.
Conclusion(s): From birth to 18 years, AMH increases, then it declines thereafter, indicating changes of ovarian maintenance. A positive relationship between androgenic profiles and AMH during adolescence and reproductive years implies a synchronism between androgens and ovarian reserve.
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http://dx.doi.org/10.1016/j.fertnstert.2015.10.017 | DOI Listing |
Stroke
January 2025
Department of Neurology, Medical College of Georgia, Augusta University. (M.B.K., B.B., D.C.H.).
Background: Remote ischemic conditioning (RIC) is a simple and low-cost intervention that is thought to increase collateral blood flow through the vasodilatory effects of nitric oxide (NO) produced by the endothelium and red blood cells (RBCs). This study aims to investigate whether RIC affects RBC deformability and levels of NO and nitrite in patients with ischemic stroke.
Methods: This is a predefined substudy to the RESIST (Remote Ischemic Conditioning in Patients With Acute Stroke Trial) randomized clinical trial conducted in Denmark.
Front Endocrinol (Lausanne)
January 2025
Sichuan Provincial Key Laboratory of Traditional Chinese Medicine Regulation of Metabolic Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
Sertoli cells (SCs), as the somatic cells in the testis of male mammals, play a crucial role in the close association with germ cells. The blood-testicular barrier (BTB), established by their tight junctions, provides immune protection to germ cells, leading to their characterization as "sentinel" cells. Moreover, the physiological process of testicular development and spermatogenesis in male animals is intricately tied to the secretory activities of SCs.
View Article and Find Full Text PDFGinekol Pol
January 2025
Department of Clinical Dietetics, Faculty of Health Sciences, Medical University of Warsaw, Poland, Poland.
Anti-Müllerian hormone (AMH), also known as Müller duct inhibitory factor and primarily known for its role in sexual differentiation. In female fetuses, AMH production by granulosa cells begins around the 36th week of gestation and continues in women until menopause. It is becoming more significant in the endocrine and gynecological diagnosis of adult women.
View Article and Find Full Text PDFTherap Adv Gastroenterol
January 2025
Solare Educa Hub, São Paulo 01307, Brazil.
Last decades led to a revolution in the management of ulcerative colitis (UC), due to the development of novel advanced therapies and the identification of increasingly ambitious therapeutic goals. Nevertheless, a subset of patients, refractory to available therapies, still requires proctocolectomy with ileal pouch-anal anastomosis (IPAA). Pouchitis, an inflammatory condition of the ileal pouch, is the most common long-term complication of IPAA, affecting almost one-half of patients in the first 10 years after surgery.
View Article and Find Full Text PDFMetabol Open
March 2025
University of West Attica (UNIWA), School of Health and Care Science, Department of Midwifery, Ag. Spyridonos Str., Egaleo, Postal Code 12243, Athens, Greece.
Introduction: Polycystic Ovary Syndrome (PCOS) is a prevalent endocrine disorder characterized by hyperandrogenism, insulin resistance, and menstrual irregularities, leading to infertility in many women. Emerging evidence suggests intermittent fasting (IF), particularly time-restricted feeding (TRF), may improve reproductive and metabolic outcomes in women with PCOS by addressing core pathophysiological mechanisms. This systematic review examines the impact of IF on fertility and reproductive hormones in women with PCOS.
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