{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T23:48:28Z","timestamp":1792453708941,"version":"4.5.0"},"reference-count":37,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2020,7,1]],"date-time":"2020-07-01T00:00:00Z","timestamp":1593561600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":["rep.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2020,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Polycystic ovary syndrome (PCOS) is the most common cause of female infertility. Growth differentiation factor-8 (GDF-8) is expressed in the ovary and can be detected in human follicular fluid which provides an important microenvironment for maintaining physiological functions of the ovarian follicle. To date, the relationship between GDF-8 levels in follicular fluid and the risk of PCOS is completely unknown. In the present study, we show that during the process of the controlled ovarian hyperstimulation (COH), serum GDF-8 levels are higher on the day of gonadotropin administration and 14 days after embryo transfer in in vitro fertilization (IVF) patients with PCOS than they are in IVF patients without PCOS. Importantly, GDF-8 levels in follicular fluid at oocyte retrieval are also higher in PCOS patients than in non-PCOS patients. Treatment of primary human granulosa-lutein (hGL) cells with GDF-8 downregulates StAR protein expression and the inhibition is more pronounced in hGL cells from PCOS patients than it is in cells from non-PCOS patients. Importantly, high GDF-8 levels and low progesterone (P4) levels were associated with poor pregnancy outcomes in PCOS patients. Our results provide the first evidence that aberrant expression of GDF-8 in the follicular fluid of PCOS patients results in abnormal P4 expression, which leads to poor pregnancy outcomes.<\/jats:p>","DOI":"10.1530\/rep-20-0077","type":"journal-article","created":{"date-parts":[[2020,4,9]],"date-time":"2020-04-09T12:03:53Z","timestamp":1586433833000},"page":"11-19","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-11","source":"Crossref","is-referenced-by-count":22,"title":["High GDF-8 in follicular fluid is associated with a low pregnancy rate in IVF patients with PCOS"],"prefix":"10.1093","volume":"160","author":[{"given":"Lanlan","family":"Fang","sequence":"first","affiliation":[{"name":"Center for Reproductive Medicine , Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 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