A sensitive new prenatal test for sickle-cell anemia.
A sensitive new prenatal test for sickle-cell anemia.
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一种针对镰状细胞性贫血的敏感新产前检测。
DOI:
10.1056/nejm198207013070105
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发表时间:
1982
期刊:
影响因子:
--
通讯作者:
Kan,YW
中科院分区:
文献类型:
--
作者:
Chang,JC;Kan,YW
METHODS for prenatal diagnosis of sickle-cell anemia are improving rapidly.1Initially the diagnostic procedure required fetal blood sampling, but new techniques for restriction-endonuclease analysis of DNA now permit the use of amniocentesis. A polymorphicHpaI site, present in 70 per cent of the American black population, was first used to diagnose the sickle mutation in the β-globin gene by linkage analysis.2Recently the enzymeDdeI was shown to detect the sickle mutation directly in all cases.3,4A drawback of theDdeI assay is that the amniotic cells must be cultured to provide a sufficient amount of DNA . . .