Premarital and prenatal screening for cystic fibrosis: experience in the Ashkenazi Jewish population

Genetics in Medicine : Official Journal of the American College of Medical Genetics
Ruth KornreichRobert J Desnick

Abstract

Since the early 1990s, Dor Yeshorim (DY) and the Mount Sinai School of Medicine (MSSM) have conducted premarital and prenatal carrier screening for cystic fibrosis (CF) in the Ashkenazi Jewish (AJ) population as part of their genetic testing programs, respectively. Together, over 170,000 screenees have been tested. In this study, we report the CF mutation frequencies in over 110,000 screenees who reportedly were of 100% AJ descent from the DY program and MSSM. In addition, the CF mutation frequencies in a group of > 7,000 screenees for AJ diseases who were of < 100% AJ descent are reported. Testing for CF mutations was performed by either PCR and restriction digestion or ASO hybridization analyses at MSSM or sent to various academic and commercial laboratories by DY. The overall (and individual) carrier frequency for the five common AJ mutations, W1282X (0.020), DeltaF508 (0.012), G542X (0.0024), 3849+10kb C>T (0.0020), and N1303K (0.0016), among screenees who were 100% AJ was 1 in 26; when D1152H and the rare 1717-1G>A were included, the overall carrier frequency increased to approximately 1 in 23. In four families with D1152H, five compound heterozygotes for D1152H and W1282X (n = 2), DeltaF508 (1) or 3849+10kb C>T (1) were i...Continue Reading

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Sep 17, 2004·Genetics in Medicine : Official Journal of the American College of Medical Genetics·Lisa EdelmannRobert J Desnick
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