Sandhoff results from a genetic mutation that reduces the body's supply of an enzyme, called hexosaminidase ("hex"), used by brain cells to metabolize excess fatty material called lipids.
由
突变导致
山德霍夫氏病会减少体内
一
叫做己糖胺酶
供应,而脑细胞用它来代谢

脂质。
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速英语_健康 THE International Cancer Genome Consortium, an alliance of laboratories that is trying to produce a definitive list of the genetic mutations that cause cancer, is accumulating data at an astonishing rate.
国际癌症基因组协作组(THE International Cancer Genome Consortium)是试图建立一份会引起癌症的基因突变完整清单的实验

,它积累数据的速度让人吃惊。
Some scientists are also exploring whether genetic mutations that can raise someone's risk for colorectal cancer have played a role in the rise of cases among younger adults – but the majority of these patients do not have them.
一些科学家也在探索基因突变是否会增加人患结肠直肠癌的风险,是否导致了年轻人发病率的上升,但这些患者中的大多数人并没有这种基因。