{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T16:50:30Z","timestamp":1783529430372,"version":"3.55.0"},"reference-count":11,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2009,3,10]],"date-time":"2009-03-10T00:00:00Z","timestamp":1236643200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound in Obstet &amp; Gyne"],"published-print":{"date-parts":[[2009,4]]},"abstract":"Abstract<\/jats:title>Objectives<\/jats:title>To investigate the potential value of maternal serum placental growth factor (PlGF) in first\u2010trimester screening for trisomy 21 and other major chromosomal abnormalities.<\/jats:p><\/jats:sec>Methods<\/jats:title>The maternal serum concentration of PlGF at 11 + 0 to 13 + 6 weeks was measured in 609 euploid and 175 chromosomally abnormal pregnancies, including 90 with trisomy 21, 28 with trisomy 18, 19 with trisomy 13, 28 with Turner syndrome and 10 with triploidy. The levels of PlGF were compared in cases and controls, and were assessed for association with free \u03b2\u2010human chorionic gonadotropin (\u03b2\u2010hCG) and pregnancy\u2010associated plasma protein\u2010A (PAPP\u2010A).<\/jats:p><\/jats:sec>Results<\/jats:title>Logistic regression analysis demonstrated in the euploid group that significant independent contributions for log PlGF were provided by fetal crown\u2013rump length, maternal weight, cigarette smoking and ethnic origin; after correction for these variables the median multiple of the median (MoM) PlGF was 0.991. Significantly lower values were observed in pregnancies with trisomy 21 (0.707 MoM), trisomy 18 (0.483 MoM), trisomy 13 (0.404 MoM), triploidy (0.531 MoM) and Turner syndrome (0.534 MoM). Significant contributions in the prediction of trisomy 21 were provided by maternal age, serum PlGF, PAPP\u2010A and free \u03b2\u2010hCG, and the detection rates of screening with the combination of these variables were 70% and 80% at respective false\u2010positive rates of 3% and 5%.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>Maternal serum PlGF concentration at 11\u201313 weeks of gestation is potentially useful in first\u2010trimester screening for trisomy 21 and other major chromosomal abnormalities. Copyright \u00a9 2009 ISUOG. Published by John Wiley & Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/uog.6331","type":"journal-article","created":{"date-parts":[[2009,3,10]],"date-time":"2009-03-10T10:04:44Z","timestamp":1236679484000},"page":"382-386","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":39,"title":["Maternal serum placental growth factor at 11\u201313 weeks in chromosomally abnormal pregnancies"],"prefix":"10.1002","volume":"33","author":[{"given":"E.","family":"Zaragoza","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R.","family":"Akolekar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L. C. Y.","family":"Poon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Pepes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. H.","family":"Nicolaides","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2009,3,10]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.88.20.9267"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0143-4004(97)90007-2"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1095\/biolreprod56.2.489"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/pd.148"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1093\/molehr\/7.8.765"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/pd.218"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/pd.998"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.5332"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(97)11280-6"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.1860"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.6244"}],"container-title":["Ultrasound in Obstetrics & Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fuog.6331","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/uog.6331","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,8]],"date-time":"2023-10-08T17:13:29Z","timestamp":1696785209000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1002\/uog.6331"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,3,10]]},"references-count":11,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2009,4]]}},"alternative-id":["10.1002\/uog.6331"],"URL":"https:\/\/doi.org\/10.1002\/uog.6331","archive":["Portico"],"relation":{},"ISSN":["0960-7692","1469-0705"],"issn-type":[{"value":"0960-7692","type":"print"},{"value":"1469-0705","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,3,10]]},"assertion":[{"value":"2008-12-22","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2009-03-10","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}