{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T18:25:14Z","timestamp":1777919114395,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2008,3,26]],"date-time":"2008-03-26T00:00:00Z","timestamp":1206489600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2008,3,26]],"date-time":"2008-03-26T00:00:00Z","timestamp":1206489600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neuroendocrinology"],"abstract":"<jats:p>In male rats, serum testosterone (T) and progesterone (P) levels fluctuate with daily periodicities that appear to be inversely related. To further investigate this interrelationship between serum T and P levels, we studied the effects of exogenous P on serum androgen levels. At 6\u20138 h after administration of P, serum T and DHT levels were consistently increased without any alterations in the serum LH and FSH levels. Following disruption of the hypothalamo-pituitary-adrenal axis either by adrenalectomy or by anterior hypothalamic deafferentation, procedures known to abolish serum T and P periodicities, P was again effective in raising serum T concentrations without altering the serum gonadotropin values. These results show that P may directly enhance testicular secretion, and thus support the possibility that the observed adrenal influence on daily testicular T secretion pattern may be hormonally mediated via P secretion.<\/jats:p>","DOI":"10.1159\/000122997","type":"journal-article","created":{"date-parts":[[2008,3,26]],"date-time":"2008-03-26T11:20:14Z","timestamp":1206530414000},"page":"183-186","source":"Crossref","is-referenced-by-count":7,"title":["Progesterone Stimulates Testosterone Secretion in Male Rats"],"prefix":"10.1159","author":[{"given":"P.S.","family":"Kalra","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.P.","family":"Kalra","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2008,3,26]]},"container-title":["Neuroendocrinology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000122997","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T18:55:17Z","timestamp":1777661717000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000122997"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,3,26]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000122997","archive":["Portico"],"relation":{},"ISSN":["0028-3835","1423-0194"],"issn-type":[{"value":"0028-3835","type":"print"},{"value":"1423-0194","type":"electronic"}],"subject":[],"published":{"date-parts":[[2008,3,26]]}}}