Results 41 to 50 of about 97,788 (309)

Kisspeptin: a new marker for human pre-ovulation

open access: yes, 2017
Kisspeptin is a polypeptide that plays an important role in reproductive endocrine regulation. The aim of present study was to investigate the dynamic trend of kisspeptin levels during the menstrual cycle and to elucidate the relationship between ...
Shizhen Su (3817237)   +8 more
core   +1 more source

Ketoconazole Inhibits Ovulation as a Result of Arrest of Follicular Steroidogenesis in the Rat Ovary [PDF]

open access: yes, 2014
Objective Ketoconazole (KCZ) is a known inhibitor of steroidogenic P450 enzymes in the adrenal cortex and the gonads. Previous studies examined the potential clinical use of KCZ for attenuation of ovarian response to gonadotropin treatments.
Joseph Orly, Michael Gal
core   +1 more source

SDF‐1 Attenuates Oocyte Quality Decline During Reproductive Aging Through Autophagy‐Enhanced Stress Granule Scavenging

open access: yesAdvanced Science, EarlyView.
SDF‐1 levels decline significantly with maternal aging. Exogenous supplementation restores meiotic spindle morphology, chromosomal alignment, and mitochondrial function while reducing oxidative stress in aged oocytes. Mechanistically, SDF‐1 enhances autophagic activity to clear accumulated stress granules, thereby rescuing fertilization competence and ...
Rui Long   +12 more
wiley   +1 more source

EMBRYO TRANSFER IN CAMELIDS [PDF]

open access: yesSPERMOVA, 2015
No ...
Tibary A, Pearson LK, Campbell A
doaj   +1 more source

Reproductive management in pigs: emphasis on the different roles of the boar and on optimal insemination management [PDF]

open access: yes, 2009
Boars have different roles in the reproductive management in pigs. Boar contact can stimulate follicle development and thereby induce oestrus, both in gilts and sows.
Kemp, B.   +3 more
core  

Ibuprofen delays ovulation by several hours: prospective controlled study in natural cycles with HCG-triggered ovulation. [PDF]

open access: yes
RESEARCH QUESTION Does ibuprofen, a non-steroidal anti-inflammatory drug (NSAID), delay ovulation? DESIGN Two-stage, proof-of-concept, controlled study, assessing the percentage of non-ovulated follicles 42 h after HCG injection in patients ...
Reid, Gregory   +5 more
core   +2 more sources

Strategies for controlling rates of inbreeding in MOET nucleus schemes for beef cattle [PDF]

open access: yes, 1994
A closed MOET (multiple ovulation and embryo transfer) nucleus scheme, with overlapping generations, was modelled for beef cattle by stochastic simulation. Selection was carried out for 25 years on a trait measurable in both sexes and with a heritability
Simm G   +14 more
core   +1 more source

Functional Sex Reversal in Adult Gonochoristic Teleosts is Mediated by Ovarian Germline Stem Cell Plasticity and Somatic Cell Transdifferentiation

open access: yesAdvanced Science, EarlyView.
Oocytes play crucial roles in maintaining ovarian fate in adult gonochoristic fish. Targeted oocyte ablation with aromatase inhibition triggers the activation of surviving germline stem cells and the transdifferentiation of somatic cells from granoulosa/theca to Sertoli/Leydig lineages, inducing a complete and functional female‐to‐male sex reversal ...
Yang Yang   +6 more
wiley   +1 more source

Granulosa cell proliferation is inhibited by PGE2 in the primate ovulatory follicle

open access: yesAnimal Cells and Systems, 2020
Prostaglandin E2 (PGE2) is a key paracrine mediator of ovulation. Few specific PGE2-regulated gene products have been identified, so we hypothesized that PGE2 may regulate the expression and/or activity of a network of proteins to promote ovulation.
Patric S. Lundberg   +5 more
doaj   +1 more source

Unraveling ovarian histology: The key morphological aspects that spur the development of the Fossa ovarii in equine

open access: yesThe Anatomical Record, EarlyView.
Abstract The equine ovary exhibits unique structural and developmental features that distinguish it from those of other domestic species, including the presence of an ovulation fossa and an inversion of cortical and medullary layers. This study aimed to investigate the morphostructural development of the equine fetal ovary, with particular emphasis on ...
Laura Ver Goltz   +5 more
wiley   +1 more source

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