{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T15:18:27Z","timestamp":1783610307951,"version":"3.55.0"},"reference-count":0,"publisher":"Bioscientifica","issue":"2","content-domain":{"domain":["journals.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[1977,2,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>John Radcliffe Hospital and Nuffield Institute for Medical Research, Headley Way, Headington, Oxford, 0X3 9DU<\/jats:p>\n                  <jats:p>(Received 1 September 1976)<\/jats:p>\n                  <jats:p>Liggins, Fairclough, Grieves, Kendall &amp; Knox (1973) drew attention to the role of the foetal pituitary-adrenal system in the initiation of parturition in sheep by demonstrating prolonged pregnancy after foetal hypophysectomy and premature delivery after intra-foetal infusion of glucocorticoid or synthetic corticotrophin (ACTH). Bassett &amp; Thorburn (1969) observed a rise of foetal cortisol before spontaneous parturition in this species. The increasing foetal cortisol induces the decline in maternal plasma progesterone observed in the last 10-15 days of pregnancy and the oestradiol increase in the last 24 h before delivery (see Thorburn, Challis &amp; Robinson, 1976). In naturally occurring prolonged pregnancy in cows (Holm &amp; Short, 1962) and sheep (Basson, Morgenthal, Bilbrough, Marais, Kruger &amp; van der Merwe, 1969) the concentration of progesterone in maternal plasma remains raised after normal term. Similarly,<\/jats:p>","DOI":"10.1677\/joe.0.0720241","type":"journal-article","created":{"date-parts":[[2008,12,11]],"date-time":"2008-12-11T17:22:29Z","timestamp":1229016149000},"page":"241-242","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-5","source":"Crossref","is-referenced-by-count":3,"title":["FOETAL AND MATERNAL CORTISOL AND PROGESTERONE AND MATERNAL OESTRADIOL IN PROLONGED PREGNANCY AFTER FOETAL HYPOPHYSECTOMY IN SHEEP"],"prefix":"10.1530","volume":"72","author":[{"given":"J. S.","family":"ROBINSON","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. R. G.","family":"CHALLIS","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.","family":"POOLEY","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G. D.","family":"THORBURN","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"416","container-title":["Journal of Endocrinology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/joe.bioscientifica.com\/view\/journals\/joe\/72\/2\/joe_72_2_017.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.bioscientifica.com\/joe\/article-pdf\/72\/2\/241\/132285\/joe_72_2_017.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/journals.bioscientifica.com\/joe\/article-pdf\/72\/2\/241\/132285\/joe_72_2_017.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T14:58:16Z","timestamp":1783609096000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.bioscientifica.com\/joe\/article\/72\/2\/241\/23367\/FOETAL-AND-MATERNAL-CORTISOL-AND-PROGESTERONE-AND"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1977,2,1]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1977,2,1]]}},"URL":"https:\/\/doi.org\/10.1677\/joe.0.0720241","relation":{},"ISSN":["1479-6805","0022-0795"],"issn-type":[{"value":"1479-6805","type":"electronic"},{"value":"0022-0795","type":"print"}],"subject":[],"published":{"date-parts":[[1977,2,1]]}}}