A COMPARISON OF PITUITARY LH LEVELS DURING DELAYED IMPLANTATION PERIODS INDUCED BY SUCKLING, PROVERA OR PROGESTERONE TREATMENT
نویسندگان
چکیده
منابع مشابه
Pituitary LH content during delayed and post-implantation periods in the armadillo (Dasypus novemcinctus).
The pituitary glands from female armadillos in various reproductive states were individually assayed for lh content by the oaad method of Parlow (1961). The glands from animals in the delayed implantation period contained significantly more lh than glands from the non-ovulated animals. Bilateral ovariectomy during the delayed implantation period resulted in an almost total depletion of pituitar...
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There was a biphasic pattern of progesterone secretion during the year. Delayed implantation was characterized by low concentrations from February to June, a significant (P less than 0.001) increase during July, August and September, and a return to low levels in October-November. A second significant increase (P less than 0.001) was observed in December and early January just before the presum...
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Ova nidation took place in female mink treated with progesterone from the 2nd through the 30th day after mating. When treatments were stopped, the females began to resorb fetuses. Perhaps the treatments partially inhibited natural corpora production of hormones and, when treatments ceased, the corpora could not maintain all the embryos. A lack of progesterone may also have prevented proper brea...
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The etiology of pituitary adenomas remains largely unknown, with the exception of involvement of estrogens in the formation of prolactinomas. We have examined the molecular pathogenesis of prolactin-producing pituitary adenomas in transgenic female mice expressing the human choriongonadotropin (hCG) beta-subunit. The LH/CG bioactivity is elevated in the mice, with consequent highly stimulated o...
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Eight patients with Nelson's syndrome were treated with a pituitary implant of yttrium-90 or gold-198 four to 16 years after adrenal surgery. All had considerable pigmentation. One already had cranial nerve abnormalities and visual field defects and had had both a craniotomy and deep x-ray treatment. Radiographs showed that the pituitary fossa was abnormal in seven patients. A biopsy performed ...
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ژورنال
عنوان ژورنال: Reproduction
سال: 1969
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0200121