Results 41 to 50 of about 701,007 (399)

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
Objective Hyperlipidemia are common polycystic ovarian syndrome (PCOS)-related metabolic dysfunctions and can adversely affect assisted reproductive technology (ART) outcomes in controlled ovarian hyperstimulation (COH) cycles.
Tao Liu   +14 more
semanticscholar   +1 more source

Human oocyte maturation in vitro

open access: yesThe International Journal of Developmental Biology, 2012
Oocytes from medium-sized antral follicles have already completed their growth phase and, if released from the follicular environment and cultured in vitro, are able to resume the meiotic process and mature. However, in vitro maturation (IVM) does not entirely support all the nuclear and cytoplasmic changes that occur physiologically as an effect of ...
Giovanni, Coticchio   +4 more
openaire   +3 more sources

A Requirement for Fatty Acid Oxidation in the Hormone-Induced Meiotic Maturation of Mouse Oocytes [PDF]

open access: yes, 2013
We have previously shown that fatty acid oxidation (FAO) is required for AMP-activated protein kinase (PRKA)-induced maturation in vitro. In the present study, we have further investigated the role of this metabolic pathway in hormone-induced meiotic ...
Downs, Stephen, Valsangkar, Deepa
core   +2 more sources

Regulation of the G2/M Transition in Rodent Oocytes [PDF]

open access: yes, 2010
Regulation of maturation in meiotically competent mammalian oocytes is a complex process involving the carefully coordinated exchange of signals between the somatic and germ cell compartments of the ovarian follicle via paracrine and cell–cell coupling ...
Downs, Stephen
core   +2 more sources

In vitro fertilisation in domestic mammals—a brief overview

open access: yesUpsala Journal of Medical Sciences, 2020
Many factors influence the final oocyte maturation, fertilisation, and early embryo development, and there are both similarities and differences between species. When comparing the advancement of assisted reproductive technologies (ARTs), the development
Ylva Sjunnesson
doaj   +1 more source

Effect of kisspeptin on in vitro maturation of sheep oocytes [PDF]

open access: yesVeterinary World, 2017
Aim: The aim of this study was to investigate the effect of kisspeptin (KP) on in vitro maturation (IVM) of sheep oocytes aspirated from the ovaries collected from slaughterhouse.
Priyanka Byri   +3 more
doaj   +1 more source

Effects of ghrelin on in vitro nuclear maturation and subsequent embryo development of immature bovine oocytes [PDF]

open access: yes, 2011
Development of efficient culture system to support embryonic development would be valuable when percentage of produced embryos reaching to the blastocyst stage is important.
Daliri, Morteza   +5 more
core   +1 more source

The boosting effects of melatonin on the expression of related genes to oocyte maturation and antioxidant pathways: a polycystic ovary syndrome- mouse model

open access: yesJournal of Ovarian Research, 2022
Background Melatonin, as a free radical scavenger exhibiting genomic actions, regulates the antioxidant genes expression and apoptosis mechanisms. In polycystic ovary syndrome (PCOS) patients, an imbalance between free radicals and antioxidants in ...
Fatemeh Nikmard   +5 more
doaj   +1 more source

Beneficial Effects of Catalpol Supplementation during In Vitro Maturation of Porcine Cumulus-Oocyte Complexes

open access: yesAntioxidants, 2023
Oxidative stress degrades oocytes during in vitro maturation (IVM). Catalpol, a well-known iridoid glycoside, exhibits antioxidant, anti-inflammatory, and antihyperglycemic effects. In this study, catalpol supplementation was tested on porcine oocyte IVM
Yanxin Wang   +10 more
doaj   +1 more source

Activation of ADF/cofilin by phosphorylation-regulated Slingshot phosphatase is required for the meiotic spindle assembly in Xenopus laevis oocytes [PDF]

open access: yes, 2013
We identify Xenopus ADF/cofilin (XAC) and its activator, Slingshot phosphatase (XSSH), as key regulators of actin dynamics essential for spindle microtubule assembly during Xenopus oocyte maturation.
Abe, Hiroshi   +9 more
core   +1 more source

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