Results 31 to 40 of about 7,523 (208)

Histomorphometric and immunohistochemistry studies of the corpus luteum of bedouin goats reared in arid environment [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi, 2023
The aim of this work was to study the histomorphometry and the immunohistochemistry of the Corpus luteum (CL) of Bedouin goat living in arid zones. Pregnant and non-pregnant females ovaries were collected from slaughterhouses, weighed, measured and then ...
Sara KASSOURI-MAOUCHE, Nouria BOUKENAOUI-FERROUK, Lynda AINOUZ-AMMAR AOUCHICHE, Elara MOUDILOU, Jean-Marie EXBRAYAT, Farida KHAMMAR   +5 more
doaj   +1 more source

The corpora lutea proangiogenic state of VEGF system components is turned to antiangiogenic at the later phase of the oestrous cycle in cows

Animal, 2015
Blood vessel expansion and reduction in the corpus luteum (CL) is regulated by the vascular endothelial growth factor (VEGF) system and linked to the maintenance of the CL. The VEGF system has both angiogenic and antiangiogenic ligands and receptors. Our
A. Guzmán, R. Macías-Valencia, F. Fierro-Fierro, C.G. Gutiérrez, A.M. Rosales-Torres   +4 more
doaj   +1 more source

Estrous cycle-dependent changes of Fas expression in the bovine corpus luteum: influence of keratin 8/18 intermediate filaments and cytokines [PDF]

, 2012
Background Fas expression and Fas-induced apoptosis are mechanisms attributed to the selective destruction of cells of the corpus luteum (CL) during luteal regression.
Birt, Alyssa, Duncan, Alice, Forcina, Jennifer, Townson, David H.   +3 more
core   +2 more sources

Luteal haemodynamics during spontaneous and induced luteolysis in crossbred cattle

Indian Journal of Animal Sciences, 2022
The haemodynamics of CL during natural and induced luteolysis was studied in crossbred cattle using colour Doppler ultrasonography. In natural cycle, penetration of Doppler signals deep into the CL was observed during Day 15 – 17 coinciding with the ...
SATHESHKUMAR S, SOUNDARAPANDIAN
doaj   +1 more source

Effect of oleic acid supplementation on prostaglandin production in maternal endometrial and fetal allantochorion cells isolated from late gestation ewes [PDF]

, 2015
Elevated circulating non-esterified fatty acids including oleic acid (OA) are associated with many pregnancy related complications. Prostaglandins (PGs) play crucial roles during parturition.
Aardema, Alves, Arsic, Asselin, Carluccio, Catov, Challis, Chen, Cheng, Cheng, Cheng, Cheng, Cherny, Chu, Crane, D.C. Wathes, D.R.E. Abayasekara, Flynn, Goncalves, Guillou, Herath, Jabbour, Karsch, Kim, Klein, Lamont, Lee, Leung, Lewis, Lunn, M. Elmes, Nielsen, Noble, Poyser, Reddy, Rimoldi, Robinson, S. Kirkup, Sharp, Smith, Smith, Thorburn, Villa, Wang, Wathes, Wendell, Whittle, Witkin, Z. Cheng, Zhang   +49 more
core   +2 more sources

Regressão luteal e dinâmica folicular após luteólise natural ou induzida por cloprostenol em vacas da raça Gir Luteal regression and follicular dynamic after spontaneous or cloprostenol induced luteolysis in Gir cattle

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 1999
A regressão luteal e a dinâmica folicular foram avaliadas durante o período de regressão luteal natural (n=14) ou após a indução artificial da luteólise pela aplicação de 500 g de cloprostenol (n=13), utilizando-se um aparelho portátil de ultra-som. Após
J.H.M. Viana, A.M. Ferreira, W.F. Sá, L.S.A. Camargo   +3 more
doaj   +1 more source

Evaluation of luteolysis, follicle size, and time to ovulation in Holstein heifers treated with two different analogs and doses of prostaglandin-F2α

Journal of Dairy Science, 2022
: Objectives were to evaluate the effect of 2 analogs of PGF2α (cloprostenol vs. dinoprost) and 2 doses (1 injection vs. 2 injections) on luteolysis, follicle diameter, hormonal concentrations, and time to ovulation in dairy heifers.
S.G. Umaña Sedó, C.C. Figueiredo, T.D. Gonzalez, G.A. Duarte, M.B. Ugarte Marin, C.A. Crawford, K.G. Pohler, R.C. Chebel, T.R. Bilby, R.S. Bisinotto   +9 more
doaj   +1 more source

Review: Luteal prostaglandins: mechanisms regulating luteal survival and demise in ruminants

Animal, 2023
The corpus luteum (CL) is critical for establishment and maintenance of pregnancy in all mammals. However, the fate of the CL in ruminants is dependent on the presence of a functional uterus or signals from a developing embryo to modify uterine function ...
J.L. Pate, C.H.K. Hughes
doaj   +1 more source

Necroptosis in primate luteolysis: a role for ceramide [PDF]

Cell Death Discovery, 2019
AbstractThe corpus luteum (CL) is a transient endocrine organ, yet molecular mechanisms resulting in its demise are not well known. The presence of phosphorylated mixed lineage kinase domain-like pseudokinase pMLKL(T357/S358) in human and nonhuman primate CL samples (Macaca mulatta and Callithrix jacchus) implied that necroptosis of luteal cells may be
Konstantin Bagnjuk, Jan Bernd Stöckl, Thomas Fröhlich, Georg Josef Arnold, Rüdiger Behr, Ulrike Berg, Dieter Berg, Lars Kunz, Cecily Bishop, Jing Xu, Artur Mayerhofer   +10 more
openaire   +4 more sources

Effect of supplementation with different fat sources on the mechanisms involved in reproductive performance in lactating dairy cattle [PDF]

, 2012
peer reviewedSupplementary fat positively influences reproductive performance in dairy cattle, although the mechanisms involved are not clearly defined. Our objective was to determine the effects of four different fat supplements on follicle development,
Butler, Stephen, Dewhurst, Richard J., Evans, A.C.O., Hennessy, Alan A., Hutchinson, Ian A., Lonergan, P., Waters, Sinead M.   +6 more
core   +1 more source