{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T15:18:39Z","timestamp":1783610319098,"version":"3.55.0"},"reference-count":0,"publisher":"Bioscientifica","issue":"1","content-domain":{"domain":["journals.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[1977,4,1]]},"abstract":"<jats:title>SUMMARY<\/jats:title>\n                  <jats:p>The concentration of prostaglandin F2\u03b1 (PGF2\u03b1), progesterone, pregnenolone, oestradiol-17\u03b2, oestrone, androstenedione and testosterone was measured in corpora lutea obtained from 40 women at various stages of the menstrual cycle. The concentration of PGF2\u03b1 was significantly higher in corpora lutea immediately after ovulation (26\u00b77 \u00b1 3\u00b79 (s.e.m.) ng\/g, P &amp;lt; 0\u00b7005) and in corpora albicantia (16\u00b73 \u00b1 3\u00b73 ng\/g, P &amp;lt; 0\u00b7005) than at any other time during the luteal phase. There was no correlation between the concentration of PGF2\u03b1 and that of any steroid. The progesterone concentration was highest in corpora lutea just after ovulation (24\u00b79 \u00b1 6\u00b77 \u03bcg\/g) and in early luteal groups (25\u00b77 \u00b1 6\u00b78 \u03bcg\/g) but declined significantly (P &amp;lt; 0\u00b705) to its lowest level in corpora albicantia (1\u00b782 \u00b1 0\u00b766 \u03bcg\/g). The concentration of oestradiol-17\u03b2 in the corpus luteum and luteal weight were significantly greater during the mid-luteal phase than at any other stage (concentration 282 \u00b1 43 ng\/g, P &amp;lt; 0\u00b705; weight 1\u00b786 \u00b1 0\u00b718 g, P &amp;lt; 0\u00b7005).<\/jats:p>\n                  <jats:p>The results indicate that regression of the human corpus luteum is not caused by a rise in the ovarian concentration of PGF2\u03b1 in the late luteal phase of the cycle.<\/jats:p>","DOI":"10.1677\/joe.0.0730115","type":"journal-article","created":{"date-parts":[[2008,12,11]],"date-time":"2008-12-11T17:22:29Z","timestamp":1229016149000},"page":"115-122","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-5","source":"Crossref","is-referenced-by-count":41,"title":["CONCENTRATION OF PROSTAGLANDIN F2\u03b1 AND STEROIDS IN THE HUMAN CORPUS LUTEUM"],"prefix":"10.1530","volume":"73","author":[{"given":"I. A.","family":"SWANSTON","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. P.","family":"McNATTY","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. T.","family":"BAIRD","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\/73\/1\/joe_73_1_014.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.bioscientifica.com\/joe\/article-pdf\/73\/1\/115\/132395\/joe_73_1_014.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/journals.bioscientifica.com\/joe\/article-pdf\/73\/1\/115\/132395\/joe_73_1_014.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T14:59:51Z","timestamp":1783609191000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.bioscientifica.com\/joe\/article\/73\/1\/115\/23403\/CONCENTRATION-OF-PROSTAGLANDIN-F2-AND-STEROIDS-IN"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1977,4,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1977,4,1]]}},"URL":"https:\/\/doi.org\/10.1677\/joe.0.0730115","relation":{},"ISSN":["1479-6805","0022-0795"],"issn-type":[{"value":"1479-6805","type":"electronic"},{"value":"0022-0795","type":"print"}],"subject":[],"published":{"date-parts":[[1977,4,1]]}}}