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http://dx.doi.org/10.1016/j.placenta.2013.02.011 | DOI Listing |
Mol Hum Reprod
January 2025
Follicle Biology Laboratory, Research Group Genetics, Reproduction and Development, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
Biphasic in vitro oocyte maturation (IVM) can be offered as a patient-friendly alternative to conventional ovarian stimulation in in vitro fertilization (IVF) patients predicted to be hyper-responsive to ovarian stimulation. However, cumulative live birth rates after IVM per cycle are lower than after conventional ovarian stimulation for IVF. In different animal species, supplementation of IVM media with oocyte-secreted factors (OSFs) improves oocyte developmental competence through the expression of pro-ovulatory genes in cumulus cells.
View Article and Find Full Text PDFMedicina (Kaunas)
January 2025
Department of Obstetrics and Gynecology, Alessandrescu-Rusescu National Institute for Mother and Child Health, 20382 Bucharest, Romania.
Silver-Russell Syndrome (SRS) is a rare genetic disorder characterized by prenatal and postnatal growth restriction, distinctive facial features, and body asymmetry. Early suspicion during the first trimester remains challenging but crucial for optimizing clinical outcomes. This study aims to highlight a diagnostic approach to the early suspicion of SRS.
View Article and Find Full Text PDFReprod Biol Endocrinol
January 2025
Infertility and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Ramat Gan, 52621, Israel.
As part of a conventional controlled ovarian hyperstimulation (COH) regimen, final follicular maturation is usually triggered by a single bolus dose of human chorionic gonadotropin (hCG). COH, which combines GnRH antagonist co-treatment with GnRH agonist(GnRHa) trigger, is often used in attempts to eliminate severe early ovarian hyperstimulation syndrome and to improve oocyte/embryo yield and quality. Recently, the combination of GnRHa, with hCG trigger has also been implemented into clinical practice.
View Article and Find Full Text PDFAndrology
January 2025
Department of Digestion, Metabolism and Reproduction, Institute of Reproductive and Developmental Biology, Hammersmith Campus, Imperial College London, London, UK.
Luteinizing hormone (LH), along with its agonist choriongonadotropin (hCG) in humans, is the key hormone responsible for the tropic regulation of the gonadal function. LH and hCG act through their cognate receptor, the luteinizing hormone/choriongonadotropin receptor (LHCGR; more appropriately LHR in rodents lacking CG), located in the testis in Leydig cells and in the ovary in theca, luteal, and luteinizing granulosa cells. Low levels in LHCGR are also expressed in numerous extragonadal sites.
View Article and Find Full Text PDFFree Radic Biol Med
January 2025
Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China. Electronic address:
Photoperiodic changes induce seasonal variations in vitamin D levels, which can affect reproductive function. The muskrat, a seasonal breeder, possesses a pair of scented glands that secrete musky substances to attract mates. The scented glands can also synthesize androgens, which regulate their function through autocrine or paracrine signaling.
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