Results 11 to 20 of about 509,837 (300)

Advances in Oocyte Maturation In Vivo and In Vitro in Mammals

open access: yesInternational Journal of Molecular Sciences, 2023
The quality and maturation of an oocyte not only play decisive roles in fertilization and embryo success, but also have long-term impacts on the later growth and development of the fetus. Female fertility declines with age, reflecting a decline in oocyte
Yao Jiang   +5 more
semanticscholar   +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

The Role of Mitochondria in Oocyte Maturation

open access: yesCells, 2021
With the nucleus as an exception, mitochondria are the only animal cell organelles containing their own genetic information, called mitochondrial DNA (mtDNA).
A. Kirillova   +3 more
semanticscholar   +1 more source

Single-cell transcriptome and translatome dual-omics reveals potential mechanisms of human oocyte maturation

open access: yesNature Communications, 2022
The combined use of transcriptome and translatome as indicators of gene expression profiles is usually more accurate than the use of transcriptomes alone, especially in cell types governed by translational regulation, such as mammalian oocytes.
Wenqi Hu   +24 more
semanticscholar   +1 more source

Mechanisms of Oocyte Maturation and Related Epigenetic Regulation

open access: yesFrontiers in Cell and Developmental Biology, 2021
Meiosis is the basis of sexual reproduction. In female mammals, meiosis of oocytes starts before birth and sustains at the dictyate stage of meiotic prophase I before gonadotropins-induced ovulation happens. Once meiosis gets started, the oocytes undergo
Meina He, Tuo Zhang, Yi Yang, Chao Wang
semanticscholar   +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

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