BIOMAT Database Logo BIOMAT Database Logo

Periovulatory changes in peripheral plasma progesterone and estrogen concentrations in the mare. 1975

E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch

Concentrations of progesterone and estrogen were measured in peripheral blood plasma samples from mares around the time of ovulation. Samples were collected every 2 hours from 36 hours before, to 26 hours after, ovulation and assayed by radioimmunoassay. Progesterone concentrations were between 60 and 100 pg/ml for the period 24 hours before ovulation through 8 hours after ovulation. By 10 hours after ovulation, concentrations increased to 140 pg/ml and, by 26 hours after ovulation, reached 346 pg/ml. Plasma estrogen concentrations did not change significantly throughout the same period.

UI MeSH Term Description Entries
D010060 Ovulation The discharge of an OVUM from a rupturing follicle in the OVARY. Ovulations
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
D003429 Cross Reactions Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen. Cross Reaction,Reaction, Cross,Reactions, Cross
D004967 Estrogens Compounds that interact with ESTROGEN RECEPTORS in target tissues to bring about the effects similar to those of ESTRADIOL. Estrogens stimulate the female reproductive organs, and the development of secondary female SEX CHARACTERISTICS. Estrogenic chemicals include natural, synthetic, steroidal, or non-steroidal compounds. Estrogen,Estrogen Effect,Estrogen Effects,Estrogen Receptor Agonists,Estrogenic Agents,Estrogenic Compounds,Estrogenic Effect,Estrogenic Effects,Agents, Estrogenic,Agonists, Estrogen Receptor,Compounds, Estrogenic,Effects, Estrogen,Effects, Estrogenic,Receptor Agonists, Estrogen
D005260 Female Females
D006736 Horses Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest. Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
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
D000906 Antibodies Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).

Related Publications

E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Progesterone concentrations in the peripheral plasma of the mare during pregnancy.
January 1974, Research in veterinary science,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Progesterone concentrations in the peripheral plasma of the mare during the oestrous cycle.
August 1970, The Journal of endocrinology,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Changes in peripheral plasma progesterone throughout the oestrous cycle of the pony mare.
June 1973, Journal of reproduction and fertility,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Daily changes in peripheral plasma progesterone concentrations in pregnant and pseudopregnant rabbits.
April 1977, Life sciences,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Testosterone and progesterone in peripheral plasma during the oestrous cycle of the mare.
May 1978, Journal of reproduction and fertility,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Progesterone concentrations in the peripheral plasma of cyclic rats.
July 1967, The Journal of physiology,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Progesterone and estrogen receptor distribution in the endometrium of the mare.
October 1992, Theriogenology,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Changes in plasma cortisol concentrations during the ovulatory cycle of the mare.
November 1983, The Journal of endocrinology,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Progesterone concentration in the peripheral plasma of the mare during the oestrous cycle and early pregnancy.
December 1973, Journal of the South African Veterinary Association,
E D Plotka, and C W Foley, and D M Witherspoon, and G C Schmoller, and D D Goetsch
Peripheral plasma concentrations of progesterone in the bitch with pyometra.
January 1978, Annales de recherches veterinaires. Annals of veterinary research,
Copied contents to your clipboard!