Proteins secreted by Day-16 to -18 bovine conceptuses extend corpus luteum function in cows
- 1 July 1986
- journal article
- research article
- Published by Bioscientifica in Reproduction
- Vol. 77 (2) , 381-391
- https://doi.org/10.1530/jrf.0.0770381
Abstract
Corpus luteum function, interoestrous interval and spontaneous uterine PGF-2.alpha. (PGF) production were evaluated in 9 cyclic Holstein cows (3/group) after intrauterine injections of pooled conceptus secretory proteins, 5.beta.-pregnan-3.alpha.-ol-20-one, or homologous serum proteins on Days 15.5 through 21 after oestrus. A significant extension of corpus luteum lifespan and interoestrous interval were detected in cows treated with conceptus secretory proteins compared to the other 2 groups. CL lifespan and interoestrous interval were not different (P > 0.25) between 5.beta.-pregnan-3.alpha.-ol-20-one and control groups. Evaluation of spotaneous PGF responses suggested that proteins synthesized and secreted by the bovine conceptus accomodate luteal maintenance during early gestation via an attenuation of endometrial PGF production.This publication has 31 references indexed in Scilit:
- Steroidogenesis and prostaglandin synthesis by cultured bovine blastocystsReproduction, 1979
- Trophoblastin, an antiluteolytic protein present in early pregnancy in sheepReproduction, 1979
- SIMULTANEOUS INFUSION OF PROSTAGLANDIN E2 ANTAGONIZES THE LUTEOLYTIC ACTION OF PROSTAGLANDIN F2α IN VIVOJournal of Endocrinology, 1977
- Biosynthesis of prostaglandin F2α from arachidonic acid and prostaglandin endoperoxides in the uterusBiochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1976
- BLOOD LEVELS OF PROGESTERONE AND 15-KETO-13,14-DIHYDRO-PROSTAGLANDIN F2 DURING THE NORMAL OESTROUS CYCLE AND EARLY PREGNANCY IN HEIFERSActa Endocrinologica, 1976
- THE INFLUENCE OF EMBRYONIC TISSUE HOMOGENATE INFUSED INTO THE UTERUS, ON THE LIFE-SPAN OF THE CORPUS LUTEUM IN THE SHEEPReproduction, 1967
- Observations on the morphogenesis and histochemistry of the bovine pre‐attachment placenta between 16 and 33 days of gestationThe Anatomical Record, 1958
- Early Embryology of the Cow. I. Gastrula and Primitive Streak StagesJournal of Dairy Science, 1958
- PLAQUE FORMATION AND ISOLATION OF PURE LINES WITH POLIOMYELITIS VIRUSESThe Journal of Experimental Medicine, 1954
- PROTEIN MEASUREMENT WITH THE FOLIN PHENOL REAGENTJournal of Biological Chemistry, 1951