Dynamic studies of growth hormone and prolactin secretion in the female rat. 1976

A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin

Blood samples were removed via chronic intra-atrial cannulae every 15 min in female rats during the estrous cycle, the last week of pregnancy, parturition and suckling. Growth hormone (GH) secretion during the estrous cycle is characterized by episodic release, occurring approximately once hourly. The surges in GH increase during the last 3-4 days of gestation, and rise to high levels during delivery and with suckling. Prolactin (PRL) shows minimal fluctuations during the estrous cycle, except for a prominent pulsatile surge during proestrus. PRL rises 4-6 h prior to parturition and declines during delivery. These studies provide a basis for further studies on the dynamics of GH and PRL secretion in the female rat.

UI MeSH Term Description Entries
D007743 Labor, Obstetric The repetitive uterine contraction during childbirth which is associated with the progressive dilation of the uterine cervix (CERVIX UTERI). Successful labor results in the expulsion of the FETUS and PLACENTA. Obstetric labor can be spontaneous or induced (LABOR, INDUCED). Obstetric Labor
D007774 Lactation The processes of milk secretion by the maternal MAMMARY GLANDS after PARTURITION. The proliferation of the mammary glandular tissue, milk synthesis, and milk expulsion or let down are regulated by the interactions of several hormones including ESTRADIOL; PROGESTERONE; PROLACTIN; and OXYTOCIN. Lactation, Prolonged,Milk Secretion,Lactations, Prolonged,Milk Secretions,Prolonged Lactation,Prolonged Lactations
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
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
D004971 Estrus The period in the ESTROUS CYCLE associated with maximum sexual receptivity and fertility in non-primate female mammals.
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
D013006 Growth Hormone A polypeptide that is secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Growth hormone, also known as somatotropin, stimulates mitosis, cell differentiation and cell growth. Species-specific growth hormones have been synthesized. Growth Hormone, Recombinant,Pituitary Growth Hormone,Recombinant Growth Hormone,Somatotropin,Somatotropin, Recombinant,Growth Hormone, Pituitary,Growth Hormones Pituitary, Recombinant,Pituitary Growth Hormones, Recombinant,Recombinant Growth Hormones,Recombinant Pituitary Growth Hormones,Recombinant Somatotropins,Somatotropins, Recombinant,Growth Hormones, Recombinant,Recombinant Somatotropin
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

Related Publications

A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
August 2015, Endocrinology,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
January 1978, Endocrinology,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
October 1984, Acta endocrinologica,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
January 1988, Advances in experimental medicine and biology,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
January 1979, The American journal of the medical sciences,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
January 1984, Alcohol (Fayetteville, N.Y.),
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
February 1985, Clinics in endocrinology and metabolism,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
December 1975, Pathologie-biologie,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
January 1975, The American journal of the medical sciences,
A Saunders, and L C Terry, and J Audet, and P Brazeau, and J B Martin
February 1979, Life sciences,
Copied contents to your clipboard!