Effect of LH and prolactin on steroid secretion by perifused luteal tissue from pregnant gilts with induced hypoprolactinemia or after passive immunoneutralization of LH. 1992

B Szafrańska, and A Grazul-Bilska, and J Przała
Department of Animal Physiology, University of Agriculture and Technology, Olsztyn, Poland.

The study was performed using luteal tissue obtained from 24 pregnant gilts. Group I was treated with bromocriptine (BR) from 37th to 42nd day of gestation. Group II was treated with homologous anti-pLH serum from 37th to 42nd day of pregnancy. Group III was given BR from 67th to 72nd day of gestation. Group IV received anti-pLH serum from 67th to 72nd day of pregnancy. The effect of exogenous LH or prolactin (100 ng/ml) on secretion of progesterone (P4) and estradiol (E2) by luteal tissue was studied using perifusion technique. Prolactin caused a significant (P < 0.05) increase in P4 secretion by luteal tissue from gilts in groups I and IV. Both LH and prolactin decreased (P < 0.05) estradiol secretion by luteal tissue obtained from gilts from group IV. Luteinizing hormone stimulated (P < 0.05) P4 and E2 secretion by luteal tissue from gilts from groups IV and II, respectively. The results demonstrate that both LH and prolactin have a regulatory role in steroid secretion by luteal tissue of gilts in the mid- and late periods of pregnancy.

UI MeSH Term Description Entries
D007986 Luteinizing Hormone A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Luteinizing hormone regulates steroid production by the interstitial cells of the TESTIS and the OVARY. The preovulatory LUTEINIZING HORMONE surge in females induces OVULATION, and subsequent LUTEINIZATION of the follicle. LUTEINIZING HORMONE consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH and FSH), but the beta subunit is unique and confers its biological specificity. ICSH (Interstitial Cell Stimulating Hormone),Interstitial Cell-Stimulating Hormone,LH (Luteinizing Hormone),Lutropin,Luteoziman,Luteozyman,Hormone, Interstitial Cell-Stimulating,Hormone, Luteinizing,Interstitial Cell Stimulating Hormone
D008659 Metabolic Diseases Generic term for diseases caused by an abnormal metabolic process. It can be congenital due to inherited enzyme abnormality (METABOLISM, INBORN ERRORS) or acquired due to disease of an endocrine organ or failure of a metabolically important organ such as the liver. (Stedman, 26th ed) Thesaurismosis,Diseases, Metabolic,Disease, Metabolic,Metabolic Disease,Thesaurismoses
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011374 Progesterone The major progestational steroid that is secreted primarily by the CORPUS LUTEUM and the PLACENTA. Progesterone acts on the UTERUS, the MAMMARY GLANDS and the BRAIN. It is required in EMBRYO IMPLANTATION; PREGNANCY maintenance, and the development of mammary tissue for MILK production. Progesterone, converted from PREGNENOLONE, also serves as an intermediate in the biosynthesis of GONADAL STEROID HORMONES and adrenal CORTICOSTEROIDS. Pregnenedione,Progesterone, (13 alpha,17 alpha)-(+-)-Isomer,Progesterone, (17 alpha)-Isomer,Progesterone, (9 beta,10 alpha)-Isomer
D011388 Prolactin A lactogenic hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). It is a polypeptide of approximately 23 kD. Besides its major action on lactation, in some species prolactin exerts effects on reproduction, maternal behavior, fat metabolism, immunomodulation and osmoregulation. Prolactin receptors are present in the mammary gland, hypothalamus, liver, ovary, testis, and prostate. Lactogenic Hormone, Pituitary,Mammotropic Hormone, Pituitary,Mammotropin,PRL (Prolactin),Hormone, Pituitary Lactogenic,Hormone, Pituitary Mammotropic,Pituitary Lactogenic Hormone,Pituitary Mammotropic Hormone
D001971 Bromocriptine A semisynthetic ergotamine alkaloid that is a dopamine D2 agonist. It suppresses prolactin secretion. 2-Bromoergocryptine,Bromocryptin,2-Bromo-alpha-ergocryptine,2-Bromo-alpha-ergokryptine,2-Bromoergocryptine Mesylate,2-Bromoergocryptine Methanesulfonate,2-Bromoergokryptine,Bromocriptin,Bromocriptine Mesylate,CB-154,Parlodel,2 Bromo alpha ergocryptine,2 Bromo alpha ergokryptine,2 Bromoergocryptine,2 Bromoergocryptine Mesylate,2 Bromoergocryptine Methanesulfonate,2 Bromoergokryptine,CB 154,CB154,Mesylate, 2-Bromoergocryptine,Mesylate, Bromocriptine,Methanesulfonate, 2-Bromoergocryptine
D003338 Corpus Luteum The yellow body derived from the ruptured OVARIAN FOLLICLE after OVULATION. The process of corpus luteum formation, LUTEINIZATION, is regulated by LUTEINIZING HORMONE. Corpora Lutea,Lutea, Corpora
D004958 Estradiol The 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position. Estradiol-17-beta is the most potent form of mammalian estrogenic steroids. 17 beta-Estradiol,Estradiol-17 beta,Oestradiol,17 beta-Oestradiol,Aerodiol,Delestrogen,Estrace,Estraderm TTS,Estradiol Anhydrous,Estradiol Hemihydrate,Estradiol Hemihydrate, (17 alpha)-Isomer,Estradiol Monohydrate,Estradiol Valerate,Estradiol Valeriante,Estradiol, (+-)-Isomer,Estradiol, (-)-Isomer,Estradiol, (16 alpha,17 alpha)-Isomer,Estradiol, (16 alpha,17 beta)-Isomer,Estradiol, (17-alpha)-Isomer,Estradiol, (8 alpha,17 beta)-(+-)-Isomer,Estradiol, (8 alpha,17 beta)-Isomer,Estradiol, (9 beta,17 alpha)-Isomer,Estradiol, (9 beta,17 beta)-Isomer,Estradiol, Monosodium Salt,Estradiol, Sodium Salt,Estradiol-17 alpha,Estradiol-17beta,Ovocyclin,Progynon-Depot,Progynova,Vivelle,17 beta Estradiol,17 beta Oestradiol,Estradiol 17 alpha,Estradiol 17 beta,Estradiol 17beta,Progynon Depot
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

Related Publications

B Szafrańska, and A Grazul-Bilska, and J Przała
February 1985, Acta endocrinologica,
B Szafrańska, and A Grazul-Bilska, and J Przała
July 1969, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.),
B Szafrańska, and A Grazul-Bilska, and J Przała
December 1997, Animal reproduction science,
B Szafrańska, and A Grazul-Bilska, and J Przała
April 1976, Endocrinology,
B Szafrańska, and A Grazul-Bilska, and J Przała
November 1981, Biology of reproduction,
B Szafrańska, and A Grazul-Bilska, and J Przała
June 1987, Journal of animal science,
B Szafrańska, and A Grazul-Bilska, and J Przała
July 1987, Regulatory peptides,
B Szafrańska, and A Grazul-Bilska, and J Przała
December 1968, Endocrinology,
Copied contents to your clipboard!