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Ameliorative Effect of Combined Placenta-Derived Mesenchymal Stem Cells plus Platelet-rich Plasma on Polycystic Ovarian Model in Rats: A Biochemical and Histological Study.
Reprod Sci
January 2025
Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
Polycystic ovary syndrome (PCOS) is a common cause of infertility in women, characterized by metabolic and hormonal irregularities. We investigated the effects of placenta-derived mesenchymal stem cells (PDMSCs) and platelet-rich plasma (PRP), as well as their combination on follicular development, hormonal profile, inflammatory parameters, and insulin resistance in a model of PCOS. In this study, 25 female Wistar rats were randomly allocated into five groups: Sham (given a dose of 1 mL of a 0.
View Article and Find Full Text PDFPostnatal undernutrition increases estradiol plasma levels and sexual receptivity and disrupts the kisspeptin-GnRH pathway in adult female rats.
Physiol Behav
January 2025
University of Northern Parana (UNOPAR), Londrina, PR, Brazil.. Electronic address:
Undernutrition has increased worldwide in recent years and it is known that environmental factors to which individuals are exposed in early life can result in metabolic and reproductive changes that remain in adult life. In this context, the litter size expansion is a classic model used to induce undernutrition early in development. Thus, this study aimed to evaluate the effects of neonatal undernutrition induced by the litter size expansion on metabolic and reproductive parameters of female rats.
View Article and Find Full Text PDFUsing a Composite Summary of Daily Sex Hormones to Gauge Time Until Menopause: A Focus on Pregnanediol Glucuronide (PDG).
J Clin Endocrinol Metab
January 2025
Preventive and Behavioral Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA.
Context: The timing of a woman's final menstrual period (FMP) in relation to her age is considered a valuable indicator of overall health, being associated with cardiovascular, bone health, reproductive, and general mortality outcomes.
Objective: This work aimed to evaluate the relationship between hormones and the "time to FMP" when daily hormone trajectories are characterized by their 1) entropy, and 2) deviation from premenopausal/stable cycle patterns (representing a textbook "gold standard"; GS).
Methods: As part of the Study of Women's Health Across the Nation, urinary luteinizing hormone (LH), follicle-stimulating hormone (FSH), estrogen conjugates (E1C), and pregnanediol glucuronide (PDG) were measured daily from a multiracial sample of 549 mid-life women for the duration of one menstrual cycle.
Effect of a GnRH injection on kisspeptin levels in girls with suspected precocious puberty: a randomized-controlled pilot study.
J Pediatr Endocrinol Metab
January 2025
Department of Paediatrics, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Objectives: Kisspeptin plays a major role in the onset of puberty by stimulating the gonadotropin-releasing hormone (GnRH) neurons. The aim of this study was to investigate whether GnRH inhibits kisspeptin secretion via a negative feedback mechanism and potential associations between kisspeptin levels and other hormones of importance for pubertal onset.
Methods: Thirteen girls with suspected central precocious puberty underwent a GnRH stimulation test twice in a randomized, placebo-controlled manner.
The impact of hysterectomy for benign uterine tumors on subsequent ovarian reserve, lower urinary tract symptoms, and sexual function: A prospective multidirectional short-term analysis.
Int J Gynaecol Obstet
January 2025
Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
Objective: To evaluate the effects of hysterectomy for benign uterine tumors on subsequent ovarian reserve, sexual function, and lower urinary tract symptoms (LUTS).
Methods: The present study was a prospective longitudinal analysis that recruited patients aged 35-45 years who underwent simple hysterectomy without oophorectomy for symptomatic benign uterine tumors. Anti-Müllerian hormone (AMH) and serum sex hormone profiles, including follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol, progesterone, and total testosterone, were measured at four timepoints: before hysterectomy, and 3, 6, and 12 months postoperatively.
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