{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,24]],"date-time":"2023-10-24T22:23:15Z","timestamp":1698186195718},"reference-count":22,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2005,11,21]],"date-time":"2005-11-21T00:00:00Z","timestamp":1132531200000},"content-version":"vor","delay-in-days":6840,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Prenatal Diagnosis"],"published-print":{"date-parts":[[1987,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Nineteen pregnancies at risk for the Martin\u2013Bell syndrome have been monitored during the second trimester for the presence of the fragile Xq27. Of the 19 potential carrier mothers, 14 showed the presence of the fragile X in their lymphocytes at a level of 4 per cent or above. As one was a twin pregnancy, fetal blood was obtained at fetoscopy from 20 fetuses and amniotic fluid obtained simultaneously from 19 of them. Of the 20 fetuses, 18 were males (including both of the twins) and two were females. Of these 18 males, seven were found to carry the fragile Xq27 in lymphocytes and subsequently six of the seven were terminated. The diagnosis was confirmed in five of the six terminated fetuses (the sixth case was a patient whose pregnancy was terminated abroad) and also in a full\u2010term male baby. Five of the seven males without the marker X who came to term had their karyotypes confirmed post natally. Of the two female fetuses one was found to be a carrier of the fragile X and the other was not. Both babies had full\u2010term deliveries and both had their karyotypes confirmed post natally. In some cases the diagnosis made in fetal lymphocytes was confirmed later in amniocytes.<\/jats:p>","DOI":"10.1002\/pd.1970070308","type":"journal-article","created":{"date-parts":[[2007,3,4]],"date-time":"2007-03-04T01:12:20Z","timestamp":1172970740000},"page":"203-214","source":"Crossref","is-referenced-by-count":18,"title":["Prenatal diagnosis of the fragile X syndrome using fetal blood and amniotic fluid"],"prefix":"10.1002","volume":"7","author":[{"given":"T. P.","family":"Webb","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. H.","family":"Rodeck","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K. H.","family":"Nicolaides","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. M.","family":"Gosden","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,11,21]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00296456"},{"key":"e_1_2_1_3_1","first-page":"234","article-title":"FUdR induction of the X chromosome fragile site: evidence for the mechanism of folic acid and thymidine inhibition","volume":"33","author":"Glover T. W.","year":"1981","journal-title":"Am. J. Hum. 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