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High frequency of mitochondrial ND4 gene mutation in Japanese pedigrees with Leber hereditary optic neuropathy. 1992

M Nakamura, and F Ara, and M Yamada, and Y Hotta, and M Hayakawa, and K Fujiki, and A Kanai, and J Sakai, and M Inoue, and M Yamamoto
Department of Ophthalmology, Kobe University School of Medicine, Japan.

The association of the ND4 gene mutation (mutation) at nucleotide position 11778 of mitochondrial DNA (mtDNA) was investigated in 14 definitive Japanese pedigrees with Leber hereditary optic neuropathy (LHON). The mutation was detected by SfaNI and MaeIII restriction fragment length polymorphisms of mtDNA amplified by polymerase chain reaction. All 14 LHON pedigrees exhibited the mutation, whereas 10 controls did not. The association of this mutation with LHON was revealed to be significantly higher in Japanese (91.7%) than in 27 reported Caucasian (51.9%) LHON pedigrees, implying genetic heterogeneity. In the tested 14 pedigrees, 28 cases with the mutation comprised 19 affected (17 male and 2 female) and 9 asymptomatic (all female except for one) individuals. Such a predominance of males in the incidence of LHON suggested probable participation of additional pathogenetic factor(s) in the development of optic atrophy in LHON patients.

UI MeSH Term Description Entries
D007564 Japan A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo. Bonin Islands
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009154 Mutation Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations. Mutations
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D004272 DNA, Mitochondrial Double-stranded DNA of MITOCHONDRIA. In eukaryotes, the mitochondrial GENOME is circular and codes for ribosomal RNAs, transfer RNAs, and about 10 proteins. Mitochondrial DNA,mtDNA
D005260 Female Females

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