Lane A B, Young E, Jenkins T
Am J Hum Genet. 1980 Nov;32(6):920-6.
A non-Jewish family is presented in which the genes for Tay-Sachs disease and Sandhoff disease are segregating. Individuals heterozygous for both alleles have low serum and white cell total hexosaminidase levels together with a proportion of heat-labile hexosaminidase A (HEX A) which falls in the normal range. The individuals would not be detected as carriers of Tay-Sachs disease or Sandhoff disease in a population screening program.
本文报告了一个非犹太家庭,其中泰-萨克斯病和桑德霍夫病的基因正在分离。两个等位基因均为杂合子的个体血清和白细胞总己糖胺酶水平较低,同时热不稳定己糖胺酶A(HEX A)的比例处于正常范围。在人群筛查项目中,这些个体不会被检测为泰-萨克斯病或桑德霍夫病的携带者。