Ziegler J B, Van der Weyden M B, Lee C H, Daniel A
J Med Genet. 1981 Apr;18(2):154-6. doi: 10.1136/jmg.18.2.154.
Amniocentesis was performed in two successive pregnancies of the mother of a child with adenosine deaminase (ADA) deficient severe combined immunodeficiency. Assay of ADA in amniotic fluid fibroblasts showed the pregnancies to be normal and homozygous deficient, respectively. These findings were confirmed by the demonstration of a normal level of erythrocyte ADA in the cord blood of the healthy male born of the first pregnancy and by the demonstration of undetectable ADA activity in cord erythrocytes, spleen, liver, and kidney of the abortus of the second pregnancy. Prenatal diagnosis of ADA deficiency appears to be a reliable procedure.
对一名患有腺苷脱氨酶(ADA)缺乏症的重症联合免疫缺陷患儿的母亲进行了两次连续妊娠的羊水穿刺检查。对羊水成纤维细胞中的ADA进行检测,结果显示两次妊娠分别为正常和纯合缺陷型。通过检测第一次妊娠所生健康男婴脐带血中红细胞ADA水平正常,以及第二次妊娠流产胎儿的脐带红细胞、脾脏、肝脏和肾脏中检测不到ADA活性,证实了这些发现。ADA缺乏症的产前诊断似乎是一种可靠的方法。