MITOCHONDRIAL INHERITANCE IN A MITOCHONDRIALLY MEDIATED DISEASE
MITOCHONDRIAL INHERITANCE IN A MITOCHONDRIALLY MEDIATED DISEASE
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DOI：
10.1056/nejm198307213090304
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发表时间：
1983-01-01
影响因子：
158.5
通讯作者：
WILSON, J
中科院分区：
文献类型：
--
作者：
EGGER, J;WILSON, J
Mendelian inheritance involves the transmission to successive generations of DNA contained in genes in the nucleus, but DNA is also contained in mitochondria, where it is believed to be responsible for encoding of certain mitochondrial enzymes. Since nearly all mitochondrial DNA is maternally transmitted, one might expect a nonmendelian pattern of inheritance in mitochondrial cytopathy, a syndrome in which there are abnormalities in mitochondrial structure and deficiencies in a variety of mitochondrial enzymes. The pedigrees of 6 affected families whose members were examined personally and of 24 families described in the literature. In 27 families, exclusively maternal transmission occurred; in 3 there was also paternal transmission in one generation. Altogether, 51 mothers but only 3 fathers had transmitted the condition. These results are consistent with mitochondrial transmission of mitochondrial cytopathy; the inheritance and enzyme defects of mitochondrial cytopathy can be considered in the light of recent evidence that subunits of respiratory-enzyme complexes are encoded solely by mitochondrial DNA. The occasional paternal transmission may be explained if certain enzyme subunits that are encoded by nuclear DNA are affected.
