The vitrification of ovarian follicles is a strategic tool that may contribute to advances in aquaculture and the conservation of many important species. Despite the difficulties inherent to the cryopreservation of oocytes, some successful protocols have been developed for different species, but little is known about the capacity of oocytes to develop after thawing. Therefore, the profiles of the reproductive pathway genes and fatty acid membrane composition during the initial stages of development were analyzed in fresh ovarian follicles and follicles after the vitrification process. There were differences in the expression of the hypothalamic-pituitary-gonad axis genes during the follicular development in the control group as well as in the vitrified group. Similarly, alterations in the composition of fatty acids were observed after vitrification. Despite this, many alterations were observed in the vitrified group; more than half of the stage III ovarian follicles were able to grow and mature in vitro. Therefore, the vitrification of ovarian follicles may impact them at molecular and membrane levels, but it does not compromise their capability for in vitro maturation, which indicates that the technique can be a strategic tool for aquaculture.
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http://dx.doi.org/10.3390/ani13223563 | DOI Listing |
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.
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.
Acta Endocrinol (Buchar)
January 2025
Anesthesiology and Intensive Care Unit, Iasi, Romania.
Introduction: Infertility is a very discussed problem in many endocrinological and gynecological courses and congresses. In a rapidly revolving environment women tend to postpone pregnancy to have security in their financial life and career.We discuss primary and secondary infertility and the hormonal results in women that presented for a desire to conceive with their partner.
View Article and Find Full Text PDFPurpose: To investigate the effects of C-type natriuretic peptide (CNP) on human granulosa cell growth and elucidate its regulatory mechanisms.
Methods: A human non-luteinizing granulosa cell line (HGrC) developed from small antral follicles was used to assess the impact of CNP on cell proliferation and estrogen synthesis. cGMP production via the guanylate cyclase domain of the CNP receptor, natriuretic peptide receptor 2 (NPR2), was confirmed.
J Ovarian Res
January 2025
Reproductive Medicine Center, Shunde Hospital of Southern Medical University (The First People's Hospital of Shunde), Jiazi Road NO 1, Lunjiao Street, Shunde Region, Foshan, 528300, Guangdong, China.
Background: To a large extent, the ovarian reserve determines a woman's reproductive potential. The etiological and pathological mechanisms of diminished ovarian reserve (DOR) remain unclear, and no reliable treatment is currently available for DOR. Adipokines and cytokines in follicular fluid (FF) play pivotal roles in follicular development and maturation.
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