Results 31 to 40 of about 1,151 (190)

Acute injection and chronic perfusion of kisspeptin elicit gonadotropins release but fail to trigger ovulation in the mare

, 2014
Kisspeptin has emerged as the most potent gonadotropin-releasing hormone (GnRH) secretagogue and appears to represent the penultimate step in the central control of reproduction.
Lomet, Didier, Beltramo, Massimiliano, Dardente, Hugues, Decourt, Caroline, Briant, Christine, Reigner, Fabrice,, Lardic, Lionel, Duchamp, Guy, Monget, Philippe, Dufourny, Laurence, Reigner, Fabrice, Chesneau, Didier, Guillaume, Daniel, Caraty, Alain   +13 more
core   +1 more source

Effect of stimulation with gonadotropins on the number of follicles and the oocyte viability obtained from donnors of different breed [PDF]

, 2023
El objetivo de este estudio fue evaluar el efecto de la estimulación ovárica con gonadotropinas sobre a) la cantidad de folículos ováricos de 3-9 mm al momento de la aspiración folicular, b) la cantidad y calidad de complejos cumulus oocitos obtenidos ...
Ruiz Cristancho, Silvia Andrea
core   +1 more source

Transcriptomic signatures reveal systemic adaptations and immune modulation in response to training and competitive racing in horses

Equine Veterinary Journal, EarlyView.
Abstract Background The molecular mechanisms underlying adaptation to physical exertion and racing stress in horses remain incompletely understood. Peripheral blood transcriptomics offers a minimally invasive method to monitor systemic responses to exercise and identify biomarkers of adaptation or overload. Objectives To evaluate transcriptomic changes
Izabela Dąbrowska, Jowita Grzędzicka‐Agko, Paula Kiełbik, Michał Trela, Olga Witkowska‐Piłaszewicz   +4 more
wiley   +1 more source

Use of equine chorionic gonadotropin in lactating dairy cattle: a rapid review

New Zealand Veterinary Journal, 2022
To use an evidence-based approach to evaluate the available research data on the efficacy of equine chorionic gonadotropin (eCG) to improve reproductive performance of dairy cows when added to oestrus synchronisation programmes for the treatment of cows not detected in oestrus.
LH Beasley, N Cogger, CWR Compton
openaire   +2 more sources

Use of the immature rat uterotrophic assay for specific measurements of chorionic gonadotropins and follicle-stimulating hormones in vivo bioactivities

, 2010
 The uterine weight growth stimulation by equine Chorionic Gonadotropin (eCG/PMSG) was found to occur at much lower eCG concentrations than ovarian growth. Human Chorionic Gonadotropin (hCG) which has only LH activity, was found to be as active as eCG in
Combarnous, Yves, Lecompte, François, Harbeby, Emilie, Klett, Daniele, Cahoreau, Claire   +4 more
core   +1 more source

Age, embryo donor status, and insemination with chilled semen all predispose to persistent breeding‐induced endometritis in warmblood mares

Equine Veterinary Journal, EarlyView.
Abstract Background Persistent breeding‐induced endometritis (PBIE) is a common reason for mares failing to establish pregnancy. Objective To examine the hypothesis that advancing mare age and embryo donor status predispose to PBIE and compromise fertility.
Tom Stout, Rik Serrarens, Bart Leemans, Anthony Claes   +3 more
wiley   +1 more source

Evaluation of Potential Hormonal Activities of Ashwagandha (Withania somnifera)

Phytotherapy Research, EarlyView.
ABSTRACT Ashwagandha is a widely used herb in traditional medicine systems, particularly Ayurveda. Despite its extensive tradition, growing concerns regarding its potential endocrinological effects have prompted scientific scrutiny. This review systematically evaluates the current preclinical, clinical, and case study evidence concerning AS's effects ...
Günter Vollmer, Thomas Brendler
wiley   +1 more source

Expression and bioactivity of a single chain recombinant equine luteinizing hormone (reLH)

, 2007
Click on the DOI link to access this article (may not be free)To study structure–activity relationships and the role of equine gonadotropins in the normal and pathophysiology of equine reproduction, the availability of purified hormones is essential ...
Wolfe, Michael W., Boime, Irving, Jablonka-Shariff, Albina, Sibley, Lillian E., Bousfield, George R., Colgin, Mark, Roser, Janet F.   +6 more
core   +1 more source

Factors associated with the reproductive performance of ewes inseminated laparoscopically in England and Wales: A longitudinal study

Veterinary Record, EarlyView.
Abstract Background Laparoscopic intrauterine artificial insemination (Lap‐AI) is used in sheep genetic improvement programmes. However, the lambing rate (LR) (i.e., the proportion of inseminated ewes that lamb) following Lap‐AI is variable. Previously, one small UK study investigated factors associated with LR, but it did not adjust for dependencies ...
Mike J. Glover, Laura E. Green, Rachel Clifton   +2 more
wiley   +1 more source

Induction of follicular luteinization by equine chorionic gonadotropin in cyclic guinea pigs [PDF]

Journal of Zhejiang University-SCIENCE B, 2015
The effects of equine chorionic gonadotropin (eCG) on follicular development and ovulation in cyclic guinea pigs were investigated by histological and immunohistochemical analyses. Three groups of guinea pigs (n=12) were administrated subcutaneously with saline, 20 or 50 IU of eCG, respectively, on cyclic Day 12 (Day 1=vaginal openings).
Jun-rong, Li, Wei, Wang, Fang-xiong, Shi
openaire   +2 more sources