Elpeleg O N, Anikster Y, Barash V, Branski D, Shaag A
Metabolic Unit, Shaare-Zedek Medical Center, Jerusalem, Israel.
Am J Hum Genet. 1994 Aug;55(2):287-8.
Canavan disease (CD) is an infantile neurodegenerative disease that is transmitted in an autosomal recessive manner and has mainly been reported in Ashkenazi Jewish families. The primary enzymatic defect is aspartoacylase deficiency, and an A-to-C transition at nucleotide 854 of the cDNA has recently been reported. We screened 18 patients with CD and 879 healthy individuals, all Israeli Ashkenazi Jews, for the mutation. All 18 patients were homozygotes for the mutation, and 15 heterozygotes were found among the healthy individuals. The results disclose a carrier rate of 1:59 and suggest that a screening for the mutation is warranted among Ashkenazi Jewish couples.
卡纳万病(CD)是一种婴儿期神经退行性疾病,以常染色体隐性方式遗传,主要在德系犹太人家庭中报道。主要的酶缺陷是天冬氨酸酰基转移酶缺乏,最近报道了cDNA核苷酸854处的A到C转换。我们对18例卡纳万病患者和879名健康个体(均为以色列德系犹太人)进行了该突变的筛查。所有18例患者均为该突变的纯合子,在健康个体中发现了15例杂合子。结果显示携带率为1:59,并表明对德系犹太夫妇进行该突变的筛查是有必要的。