Results 111 to 120 of about 79,942 (242)

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Evaluation of comparison of clinical outcome treated oocyte with ionomycin and strontium chloride in infertile couple with previous failed in vitro fertilization

open access: yesMajallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2019
Introduction: Several factors are involved in failed fertilization following intracytoplasmic sperm injection (ICSI), which could be related to sperm, oocyte factors and/or both.
Marzieh Norozi- Hafshejani   +2 more
doaj  

Optical measurement of osmotic water transport in cultured cells. Role of glucose transporters. [PDF]

open access: yes, 1992
Methodology was developed to measure osmotic water permeability in monolayer cultured cells and applied to examine the proposed role of glucose transporters in the water pathway (1989. Proc. Natl. Acad. Sci. USA. 86:8397-8401).
Echevarria, M, Verkman, AS
core  

VPS34 Governs Oocyte Developmental Competence by Regulating Mito/Autophagy: A Novel Insight into the Significance of RAB7 Activity and Its Subcellular Location

open access: yesAdvanced Science
Asynchronous nuclear and cytoplasmic maturation in human oocytes is believed to cause morphological anomalies after controlled ovarian hyperstimulation.
Wenwen Liu   +15 more
doaj   +1 more source

Oocyte maturation and quality: role of cyclic nucleotides [PDF]

open access: yes, 2016
Advance Publication first posted online on 15 July 2016 - Accepted manuscriptThe cyclic nucleotides, cAMP and cGMP, are the key molecules controlling mammalian oocyte meiosis.
De Vos, M.   +9 more
core   +1 more source

Artificial Meiotic Arrest and Parthenogenetic Activation of Buffalo Oocytes Using Cycloheximide

open access: yesCYTOLOGIA, 2007
Maintaining oocytes at germinal vesicle (GV) stage without damaging their quality would allow synchronization of maturation and homogenization of the oocyte population. Activation of the oocyte is very important for a number of oocyte or embryo related technologies including intracytoplasmic sperm injection and cloning by nuclear transfer.
Karima Gh. M. Mahmoud   +2 more
openaire   +2 more sources

Canonical and non‐canonical functions of proteins regulating mitochondrial dynamics in mammalian physiology

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Mitochondria are highly dynamic organelles that continuously remodel their architecture through coordinated cycles of fusion and fission. This review examines the four key GTPases that orchestrate mitochondrial dynamics in mammals: MFN1, MFN2, OPA1, and DRP1.
Rémi Chaney   +4 more
wiley   +1 more source

Lower developmental potential of rat zygotes produced by ooplasmic injection of testicular spermatozoa versus cauda epididymal spermatozoa

open access: yesThe Journal of Reproduction and Development
Intracytoplasmic sperm injection (ICSI) is clinically used to treat obstructive/nonobstructive azoospermia. This study compared the efficacy of ICSI with cauda epididymal and testicular sperm in Wistar (WI) and Brown-Norway (BN) rats.
Misuzu IDE   +6 more
doaj   +1 more source

IMPORTANCE OF IMMUNE FUNCTION FOR OPTIMAL REPRODUCTION OF DAIRY COWS [PDF]

open access: yes, 2017
This presentation will focus on the importance of healthy immune function for optimal reproduction in dairy ...
Hansen, P. J.
core  

Use of retinoids during oocyte maturation diminishes apoptosis in caprine embryos [PDF]

open access: yes, 2015
Exposure of caprine oocytes and embryos to retinoids enhances embryonic development, but the mechanisms governing this phenomenon have not been characterised.
Cantanhêde, Ludymila F.   +8 more
core   +1 more source

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