Results 41 to 50 of about 190,003 (291)

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

Comparison of obstetric outcomes of pregnancies after donor-oocyte In vitro fertilization and self-oocyte In vitro fertilization: A retrospective cohort study

open access: yesJournal of Human Reproductive Sciences, 2018
Aims:The aim of this study is to evaluate and compare multiple obstetric and perinatal outcomes between donor-oocyte in vitro fertilization (IVF) and self-oocyte IVF group. Settings and Design: This study was done in a tertiary care center with ART unit.
Vikas Yadav   +5 more
doaj   +1 more source

Sperm-oocyte interplay: an overview of spermatozoon’s role in oocyte activation and current perspectives in diagnosis and fertility treatment

open access: yesCell & Bioscience, 2021
The fertilizing spermatozoon is a highly specialized cell that selects from millions along the female tract until the oocyte. The paternal components influence the oocyte activation during fertilization and are fundamental for normal embryo development ...
Mohammad Ishraq Zafar   +2 more
doaj   +1 more source

Apoptosis in mouse fetal and neonatal oocytes during meiotic prophase one [PDF]

open access: yes, 2007
Background The vast majority of oocytes formed in the fetal ovary do not survive beyond birth. Possible reasons for their loss include the elimination of non-viable genetic constitutions arising through meiosis, however, the ...
Ghafari , Fataneh   +2 more
core   +4 more sources

Oocyte specific lncRNA variant Rose influences oocyte and embryo development

open access: yesNon-coding RNA Research, 2021
Fully grown mammalian oocytes store a large amount of RNA synthesized during the transcriptionally active growth stage. A large part of the stored RNA belongs to the long non-coding class which contain either transcriptional noise or important ...
Rajan Iyyappan   +5 more
doaj  

A report of two cases with successful oocyte retrieval after wrongly earlier injection of ovulation induction trigger: Case report

open access: yesClinical Case Reports, 2023
Oocyte maturation is induced by trigger administration and is acritical step in the success of assisted reproductive technology (ART)treatment. The ideal time interval between trigger administration and oocyte retrieval varies in the literature ...
Roya Kabodmehri   +4 more
doaj   +1 more source

A Higher Estradiol Rise After Dual Trigger in Progestin-Primed Ovarian Stimulation Is Associated With a Lower Oocyte and Mature Oocyte Yield in Normal Responders

open access: yesFrontiers in Endocrinology, 2019
Background: Prior studies have shown that patients with a >10% estradiol (E2) rise after trigger had more oocytes retrieved than plateauing or decreasing E2 responders.
Jialyu Huang   +7 more
doaj   +1 more source

Supplementation of rapamycin during in vitro maturation promotes oocyte quality and subsequent embryo development in bovine

open access: yesBulletin of the National Research Centre, 2023
Background The developmental competence of oocyte derived from in vitro maturation (IVM) is significantly lower than those of oocyte matured in vivo. Rapamycin is an immunosuppressive substance and widely used to prolong the survival and preserve the ...
Hafiza Khatun   +3 more
doaj   +1 more source

Intercellular Migration of Centrioles in the Germarium of \u3cem\u3eDrosophila melanogaster\u3c/em\u3e. An Electron Microscopic Study [PDF]

open access: yes, 1970
A cluster of centrioles has been found in the early Drosophila oocyte. Since the oocyte is connected to 15 nurse cells by a system of intercellular bridges or ring canals, the possibility that the cluster of centrioles arose in the germarium from an ...
Mahowald, Anthony P.   +1 more
core   +1 more source

AMPK Regulation of Mouse Oocyte Meiotic Resumption in Vitro [PDF]

open access: yes, 2006
We have previously shown that the adenosine analog 5-aminoimidazole-4-carboxamide-1-β-d-ribofuranoside (AICAR), an activator of AMP-activated protein kinase (AMPK), stimulates an increase in AMPK activity and induces meiotic resumption in mouse oocytes ...
Chang, Aimee S.   +6 more
core   +2 more sources

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