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1·There are no records of a human having been intentionally kept awake long enough to kill them, but a hereditary disease called fatal familial insomnia suggests there is an ultimate limit.

没有关于一个人类被迫保持不睡的时间久到死亡的记录，但是有一种叫做致命性家族失眠症的遗传病似乎表明人类无睡眠时间是有极限的。

2·However, he said, understanding the molecular nature of this single genetic defect, which is at the root of a familial form of such a complex disease, offers invaluable clues.

然而，他又说，理解单个遗传缺陷的分子本质，其是如此复杂疾病的一种家族性形式的根源，提供了无价的线索。

3·Mutations in the DLST gene may be responsible for the familial Alzheimer disease (1).

该基因的突变会导致家族性的阿尔茨海默病(1)。

4·Familial hypertrophic cardiomyopathy (FHCM) is a genetically heterogeneous cardiac disease transmitted as an autosomal dominant trait. It is the leading cause of sudden cardiac death (SCD) in youth.

家族性肥厚型心肌病是一种以常染色体显性遗传为特征的具有遗传异质性的心脏疾病，它是年轻人心源性猝死的首要病因。

5·Objective To explore the effect of mutation of presenilin 1 (PS 1) gene on the pathogenesis of familial Alzheimer disease (FAD).

目的探讨早老素1基因突变在家族性阿尔茨海默病（FAD）发病中的作用。

6·Cross's disease, familial amyloidosis, prevents the liver from breaking down a protein called transthyretin.

克罗斯患有一种其家族特有的淀粉样变性疾病，它使肝脏无法分解一种叫做转体基因的蛋白。

7·Congenital long QT syndrome is a group of familial inherited disease.

先天性Q - T间期延长综合征是一组家族遗传性疾病。

8·Amyotrophic lateral sclerosis is a fatal neurodegenerative disease that is familial in 10% of cases.

肌萎缩性侧束硬化症是一种致命的神经退化性疾病，其家族遗传率是10%。

9·Congenital fibrosis syndrome is a rare familial hereditary disease, characterized by fibrotic change of extraocular muscles.

先天性纤维化症候群是一少见的家族性遗传疾病。

10·If a disease has a genetic basis, it will occur in familial aggregates.

如果一种疾病有遗传基础，它将以家族聚集性的方式发生。