Results 41 to 50 of about 8,097 (247)

Circumvention of luteolysis reveals parturition pathways in mice dependent upon innate type 2 immunity [PDF]

open access: yes, 2023
Although mice normally enter labor when their ovaries stop producing progesterone (luteolysis), parturition can also be triggered in this species through uterus-intrinsic pathways potentially analogous to the ones that trigger parturition in humans. Such
Johan Siewiera   +13 more
core   +1 more source

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

open access: yesArquivo 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   +3 more
doaj   +1 more source

Luteolysis in the mare: a role for the immune system and gonadotrophins? [PDF]

open access: yes, 1998
The luteolytic process in the mare has been left relatively unexplored in recent times, while research has progressed considerably in our other domestic species.
Lawler, Denise Fionnuala
core   +3 more sources

Luteal haemodynamics during spontaneous and induced luteolysis in crossbred cattle

open access: yesIndian 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

Possible mechanisms of structural luteolysis via lymphatic vessels.

open access: yes, 2014
Bovine spontaneous luteolysis is caused by PGF2α from the uterus. During structural luteolysis, luteal cells are killed by apoptosis, and macrophages simultaneously infiltrate into the CL to remove luteal cells by phagocytosis. Immediately after starting
Fumio Sekizawa (525532)   +5 more
core   +1 more source

Modification of the standard 7-day Ovsynch protocol to increase the luteolytic and synchronization risks in dairy cows

open access: yesMacedonian Veterinary Review, 2020
We hypothesized that a single dose of PGF2α belatedly injected on day 8 after GnRH-1 in cows receiving a 7-day Ovsynch-56 protocol (GnRH – 7 days – PGF2α – 56h – GnRH – 16h – timed AI) will increase the proportion of cows with complete luteolysis. At day
Branko Atanasov   +9 more
doaj   +1 more source

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

open access: yesAnimal, 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

323 EFFICIENCY OF CLOPROSTENOL-INDUCED LUTEOLYSIS IN SUPEROVULATED COWS

open access: yes, 2011
The induction of multiple ovulations is a key procedure for in vivo embryo production. Many corpora lutea (CL) are developed, resulting in abnormally high progesterone concentrations.
E. D. Souza   +6 more
core   +1 more source

Efecto del ácido linoléico sobre la producción de las prostaglandinas PGF2α y PGE2 en células endometriales

open access: yesRevista Mvz Cordoba, 2013
RESUMEN Objetivo. Evaluar el efecto in vitro del ácido linoléico sobre la producción de PGF2α y PGE2 en células endometriales epiteliales bovinas (CEEP). Materiales y métodos.
Yasser Lenis S   +2 more
doaj   +1 more source

Population Differentiation and Polygenic Selection in the Finnish Ayrshire Cows Selected on Genomic Information

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The Finnish Ayrshire cattle belong to the Nordic Red breeds. The basis of selection in Nordic Red breeds shifted from traditional pedigree‐based breeding values to genomic breeding values between 2011 and 2014. Joint genetic evaluation and admixture among the Nordic Red breeds have led to the formation of a composite Nordic Red population ...
Katri Sarviaho   +4 more
wiley   +1 more source

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