Results 1 to 10 of about 40,429 (263)

Effects of melatonin on in vitro oocyte maturation and embryo development in pigs [PDF]

open access: yesVeterinary World
Background and Aim: In vitro fertilization (IVF) efficiency in pigs remains suboptimal, partly due to oxidative stress during oocyte maturation and embryo development.
Laura Andrea Blancas-Alvarez   +3 more
doaj   +2 more sources

Mitochondrial Quality Control in Bovine Oocyte Maturation: Mechanisms, Challenges, and Prospects for Enhancing Reproductive Efficiency [PDF]

open access: yesAnimals
Oocyte maturation represents a fundamental biological process in bovine reproduction, establishing the physiological basis for fertilization and early embryonic development while critically determining the propagation of improved varieties and breeding ...
Yi-Ran Zhang, De-Jun Xu
doaj   +2 more sources

Cortisol prevents the suppressive effect of LPS on bovine oocyte maturation in vitro [PDF]

open access: yesThe Journal of Reproduction and Development
During the periovulatory period, local production of cortisol surges in the bovine cumulus-oocyte complex (COC), although its physiological significance is not well understood.
Sameera PREMARATNE   +4 more
doaj   +2 more sources

Lipid Metabolism Was Associated With Oocyte in vitro Maturation in Women With Polycystic Ovarian Syndrome Undergoing Unstimulated Natural Cycle

open access: yesFrontiers in Cell and Developmental Biology, 2021
ObjectiveHyperlipidemia are common polycystic ovarian syndrome (PCOS)-related metabolic dysfunctions and can adversely affect assisted reproductive technology (ART) outcomes in controlled ovarian hyperstimulation (COH) cycles. The objective of this study
Tao Liu   +74 more
doaj   +1 more source

Lipid Metabolic Process Involved in Oocyte Maturation During Folliculogenesis

open access: yesFrontiers in Cell and Developmental Biology, 2022
Oocyte maturation is a complex and dynamic process regulated by the coordination of ovarian cells and numerous extraovarian signals. From mammal studies, it is learnt that lipid metabolism provides sufficient energy for morphological and cellular events ...
Tao Liu   +39 more
doaj   +1 more source

Clinical Outcomes of In Vitro Maturation After Oocyte Retrieval With Gynecological Surgery for Refractory Polycystic Ovary Syndrome: A Retrospective Cohort Study

open access: yesFrontiers in Endocrinology, 2022
ObjectiveTo explore the clinical outcomes of unstimulated in vitro maturation (IVM) after oocyte retrieval with gynecological surgery (IVM-surgery) for refractory polycystic ovary syndrome (PCOS) and analyze the influencing factors.MethodsPatients with ...
Wen Zhang   +55 more
doaj   +1 more source

Twelve Hours Post-Injection Serum Human Chorionic Gonadotropin and Body Mass Index Predicts In Vitro Fertilization Oocyte Maturation Rate: A Cross-Sectional Study [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2023
Background: In vitro fertilization (IVF) remains a main treatment for infertility cases. Post-injection human chorionic gonadotropin(hCG) level is an essential factor in determining oocyte maturation rate in IVF.
Budi Wiweko   +8 more
doaj   +1 more source

Oocyte maturation [PDF]

open access: yesHuman Reproduction, 1998
Primary oocytes recovered from small and growing follicles of > or = 3 mm in the ovaries of untreated women, can be matured in vitro, will fertilize and develop in vitro, and when transferred to the patient, develop to term. However, the implantation rate of cleaved embryos has been disappointingly low and when embryos are allowed to develop beyond the
A, Trounson   +5 more
openaire   +2 more sources

Progesterone and Androstenedione Are Important Follicular Fluid Factors Regulating Porcine Oocyte Maturation Quality

open access: yesAnimals, 2023
Oocytes matured in vitro are useful for assisted human and farm animal reproduction. However, the quality of in vitro matured oocytes is usually lower than that of in vivo matured oocytes, possibly due to the absence of some important signal regulators ...
Huaxing Zhao   +11 more
doaj   +1 more source

Mammalian oocyte maturation [PDF]

open access: yesReproduction Nutrition Développement, 1987
International ...
Thibault, C., Szolosi, D., Gerard, M.
openaire   +4 more sources

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