Results 171 to 180 of about 8,097 (247)

Luteolysis and the Corpus Luteum of Pregnancy

The Ovary, 2019
The corpus luteum (CL) is a transient endocrine gland that produces progesterone and maintains pregnancy in all mammals. In the absence of a pregnancy, the CL regresses rapidly at the end of the estrous or menstrual cycle, ceasing progesterone production.
C. K. Hughes, J. Pate
semanticscholar   +2 more sources

Expression patterns of Toll-like receptors in the ovine corpus luteum during the early pregnancy and prostaglandin F2α-induced luteolysis.

Theriogenology, 2018
The aim of this study was to elucidate the expression profiles of Toll-like receptors (TLRs) in the ovine corpus luteum (CL) during early pregnancy and prostaglandin F2 alpha (PGF2 alpha)-induced luteolysis. For this purpose, multiparous Anatolian Merino
M. O. Atlı, M. Kose, M. Hitit, M. Kaya, F. Bozkaya   +4 more
semanticscholar   +2 more sources

Current knowledge about the processes of luteolysis and maternal recognition of pregnancy in camelids.

Reproduction in domestic animals = Zuchthygiene, 2022
Camelids have many unique reproductive features that considerably differ from those of other domestic species. Females are induced ovulators with subsequent development of a corpus luteum (CL) with a short lifespan.
C. Bianchi, M. Gallelli, J. M. Herrera, M. A. Benavente, L. Rossetto, M. Aba   +5 more
semanticscholar   +1 more source

Regulatory changes of local produced prostaglandins in corpus luteum after experimentally induced luteolysis in the cow

Anatomia, Histologia, Embryologia. Journal of Veterinary Medicine Series C, 2022
The objective of the study was to evaluate the expression patterns of prostaglandin F2alpha (PGF), prostaglandin E2 (PGE), PGF receptor (FP), PGE receptors (EP2 and EP4), prostaglandin‐endoperoxide synthase 2 (PTGS2) and prostaglandin synthases (PGFS and
B. Berisha, Granit Thaqi, D. Rodler, D. Schams, F. Sinowatz, Michael W. Pfaffl   +5 more
semanticscholar   +1 more source

Luteolysis

2018
Joy L Pate
exaly   +2 more sources

Loss of luteal sensitivity to luteinizing hormone underlies luteolysis in cattle: A hypothesis.

Reproductive Biology, 2021
By virtue of the secretion of progesterone (P4), corpus luteum (CL) is important not only for normal cyclicity but also for conception and continuation of pregnancy in female mammals.
H. Shrestha
semanticscholar   +1 more source

Effect of two low doses of prostaglandin F2α on luteolysis in dairy cows. [PDF]

Acta Veterinaria Hungarica, 2017
In this preliminary study, we determined the effect of a modified method involving the administration of two low doses of prostaglandin F2α (PGF2α) at an interval of 24 h on luteolysis in dairy cows, and compared it with the standard single-dose method ...
Tsung-Ching Liu, Chia-Yu Ho, J. P. Chan
semanticscholar   +2 more sources

Immunoregulation of luteolysis

Medical Hypotheses, 1988
It is proposed that the immune/inflammatory system plays a yet unrecognized role in the mechanics of prostaglandin (PG) F2 alpha-induced luteal regression. Eosinophils are specifically attracted into luteal tissues and activated to degranulate (i.e. secrete cytotoxins) before symptoms of luteolysis are manifested (sheep).
W J, Murdoch, L E, Steadman, E L, Belden
openaire   +2 more sources

Up-regulation of endometrial oxytocin receptor is associated with the timing of luteolysis in heifers with two and three follicular waves†

Biology of Reproduction, 2019
Initiation of luteolysis in ruminants is variable due to ill-defined mechanisms. Cycles of two follicular waves are shorter and have earlier luteolysis than three-wave cycles.
R. Domingues, O. J. Ginther, V. Gomez-León, M. Wiltbank   +3 more
semanticscholar   +1 more source

ESTROGEN-INDUCED HUMAN LUTEOLYSIS

Obstetrical & Gynecological Survey, 1973
Diethylstilbestrol diphosphate (50 mg daily for 5 days) was given to 3 women for 5 treatment cycles beginning on the third day following the rise in basal body temperature. Daily plasma samples were obtained for radioimmunoassay of progesterone levels. In k treated cycles, a luteolytic effect was apparent by the third day of treatment.
B Z, Gore, B V, Caldwell, L, Speroff
openaire   +2 more sources