Results 31 to 40 of about 280,910 (369)

Suppression of Chemically Induced and Spontaneous Mouse Oocyte Activation by AMP-Activated Protein Kinase [PDF]

open access: yes, 2013
Oocyte activation is an important process triggered by fertilization that initiates embryonic development. However, parthenogenetic activation can occur either spontaneously or with chemical treatments.
Downs, Stephen, Ya, Ru
core   +2 more sources

The ovulation assessment of regular cyclic rats following subacute oral administration of monosodium glutamate: An in vivo study [PDF]

open access: yesJournal of Pharmacy & Pharmacognosy Research, 2022
Context: The possible toxic effects of monosodium glutamate (MSG) on ovarian functions have not been thoroughly evaluated in contrast to testicular functions. Few studies documented that MSG showed histological alterations.
Mahfoudh Almusli Mohammed Abdulghani
doaj  

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

One step closer to understanding the ecology of Cameraria ohridella (Lepidoptera: Gracillariidae): The effects of light conditions

open access: yesEuropean Journal of Entomology, 2019
Horse chestnut leaf miner (Cameraria ohridella) has achieved ecological success by colonizing the entire European range of its primary host, horse chestnut (Aesculus hippocastanum).
Radosław JAGIEŁŁO   +5 more
doaj   +1 more source

Metformin promotes in vitro maturation of oocytes from aged mice by attenuating mitochondrial oxidative stress via SIRT3-dependent SOD2ac

open access: yesFrontiers in Cell and Developmental Biology, 2022
Human female fecundity decreases irreversibly as chronological age rises, adversely affecting oocyte quality, consequently worsening pregnancy outcomes and increasing the extent of birth defects.
Yongzhi Cao   +49 more
doaj   +1 more source

mRNA active transport in oocyte-early embryo: 3D agent-based modeling [PDF]

open access: yesarXiv, 2023
Axes of polarity (and primary morphogenetic gradients) are established in the oocyte - early embryo through active transport and localization of maternal factors. It is the oocyte - syncytial embryo of Drosophila (D. melanogaster) that is a model object for studying the molecular machinery of such transport systems.
arxiv  

A spontaneous increase in intracellular Ca2+ in metaphase II human oocytes in vitro can be prevented by drugs targeting ATP-sensitive K+ channels [PDF]

open access: yes, 2015
STUDY QUESTION: Could drugs targeting ATP-sensitive K+ (KATP) channels prevent any spontaneous increase in intracellular Ca2+ that may occur in human metaphase II (MII) oocytes under in vitro conditions?
Barratt, Christopher L. R.   +13 more
core   +5 more sources

Oocyte Competence Biomarkers Associated With Oocyte Maturation: A Review [PDF]

open access: yesFrontiers in Cell and Developmental Biology, 2021
Oocyte developmental competence is one of the determining factors that influence the outcomes of an IVF cycle regarding the ability of a female gamete to reach maturation, be fertilized, and uphold an embryonic development up until the blastocyst stage.
Batara Sirait   +9 more
openaire   +4 more sources

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Fine morphological assessment of quality of human mature oocytes after slow freezing or vitrification with a closed device: a comparative analysis [PDF]

open access: yes, 2014
BACKGROUND: Human mature oocytes are very susceptible to cryodamage. Several reports demonstrated that vitrification might preserve oocyte better than slow freezing. However, this is still controversial.
A. Borini   +7 more
core   +2 more sources

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