BIOMAT Database Logo BIOMAT Database Logo

Luteinizing hormone response of castrated rabbits to treatment with testosterone propionate and estradiol benzoate. 1978

E V Younglai

The effects of sex steroids on luteinizing hormone (LH) secretion in rabbits of both sexes castrated for at least 2 weeks previously were investigated. An intramuscular (i.m.) injection of testosterone propionate (TP) or estradiol benzoate (EB) was given about midway through blood sampling which ranged from 6 to 12 h. LH and steroids were measured by established radioimmunoassay (RIA) procedures. Variable responses were obtained with animals. Castration itself in most instances led to increases in circulating levels of LH which ranged from normal levels to greater than 200 ng/ml with some evidence for episodic variation. EB was more effective than TP in reducing LH levels and inhibiting episodic release.

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
D008297 Male Males
D010507 Periodicity The tendency of a phenomenon to recur at regular intervals; in biological systems, the recurrence of certain activities (including hormonal, cellular, neural) may be annual, seasonal, monthly, daily, or more frequently (ultradian). Cyclicity,Rhythmicity,Biological Rhythms,Bioperiodicity,Biorhythms,Biological Rhythm,Bioperiodicities,Biorhythm,Cyclicities,Periodicities,Rhythm, Biological,Rhythmicities,Rhythms, Biological
D011817 Rabbits A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes. Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D002369 Castration Surgical removal or artificial destruction of gonads. Gonadectomy,Castrations,Gonadectomies
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
D012737 Sex Factors Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances. Factor, Sex,Factors, Sex,Sex Factor
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species

Related Publications

E V Younglai
Luteinizing hormone release in entire and castrated rams following injection of synthetic luteinizing hormone releasing hormone, and effect of testosterone propionate pre-treatment.
January 1975, The Journal of endocrinology,
E V Younglai
Sexual interactions between estrous female rats and castrated male rats treated with testosterone propionate or estradiol benzoate.
January 1988, Physiology & behavior,
E V Younglai
Direct effects of estradiol benzoate and testosterone on the response of the male rat pituitary to luteinizing hormone releasing hormone (LHRH).
March 1978, Biology of reproduction,
E V Younglai
Luteinizing hormone response to estradiol benzoate in cows postpartum and cows with ovarian cysts.
September 1981, Theriogenology,
E V Younglai
Dissociation of luteinizing hormone and follicle-stimulating hormone control mechanisms in male and female rats by neonatal administration of estradiol benzoate or testosterone propionate.
January 1984, Hormone research,
E V Younglai
Biphasic effect of estradiol on luteinizing hormone response to gonadotropin-releasing hormone in castrated men.
August 1982, Metabolism: clinical and experimental,
E V Younglai
Mounting behavior and lordosis behavior in castrated male rats treated with testosterone propionate, or with estradiol benzoate or dihydrotestosterone in combination with testosterone propinonate.
June 1975, Hormones and behavior,
E V Younglai
Luteinizing hormone response to controlled-release deslorelin in estradiol benzoate primed ovariectomized gilts.
June 2000, Theriogenology,
E V Younglai
Serum testosterone and luteinizing hormone concentrations in castrated immature rats treated with testosterone.
October 1975, The Journal of endocrinology,
E V Younglai
Cytosol estradiol receptor content in the adult rat brain after neonatal treatment with estradiol benzoate or testosterone propionate.
December 1987, The Japanese journal of psychiatry and neurology,
Copied contents to your clipboard!