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Articles
Tay-Sachs Disease: Prenatal Diagnosis
1 Departments of Neurosciences and Obstetrics and Gynecology, and University Hospital, School of Medicine, University of California at San Diego, La Jolla 92037
Fifteen pregnant women with a 25 percent risk of delivering a child with Tay-Sachs disease were monitored by amniocentesis and hexosaminidase A assays of amniotic fluid, uncultured amniotic cells, and cultured amniotic cells. Tay-Sachs disease was diagnosed prenatally in six fetuses; the diagnosis was confirmed in one child after birth and in five fetuses after therapeutic abortion. Prenatal diagnosis indicated the absence of Tay-Sachs disease in nine other fetuses; this diagnosis was confirmed postnatally in six, three are still in utero.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)