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Screening of common point-mutations and discovery of new T14727C change in mitochondrial genome of Vietnamese encephalomyopathy patients
- Source :
- Mitochondrial DNA. 27:441-448
- Publication Year :
- 2014
- Publisher :
- Informa UK Limited, 2014.
-
Abstract
- Vietnamese patients (106) tentatively diagnosed with encephalomyopathy were screened for the presence of 15 common point mutations in mitochondria using PCR-RFLP. The screened mutations include A3243G, T3271C and T3291C for Mitochondrial Encephalopathy, Lactic Acidosis and Stroke-like episodes (MELAS); A8344G and T8356C for Myoclonus Epilepsy and Rag-Red Fibers (MERRF); G11778A, G3460A and T14484C for Leber's Hereditary Optic Neuropathy (LHON); T8993G/C and T9176G for Leigh syndrome; A1555G for deafness syndrome; G4298A, T10010C, T14728C and T14709C for neuromuscular syndrome. As a result, 6 cases of A3243G (5.7%) and 2 cases of T14727C (3.9%) were found. The 6 cases of A3243G mutation were heteroplasmic at different levels (4.23-80.85%). The T14727C change was discovered for the first time in the MTTE gene encoding for tRNA(Glu) and showed homoplasmy. The T14727C change was probably a mutation because it was further confirmed as vertically inherited from the mother and not the result of isolated polymorphism.
- Subjects :
- Male
0301 basic medicine
Mitochondrial DNA
Mitochondrion
Biology
medicine.disease_cause
DNA, Mitochondrial
Optic neuropathy
03 medical and health sciences
Asian People
Mitochondrial Encephalomyopathies
Polymorphism (computer science)
Genetics
medicine
Humans
Point Mutation
Molecular Biology
Homoplasmy
Mutation
Polymorphism, Genetic
medicine.disease
Heteroplasmy
030104 developmental biology
Lactic acidosis
Genome, Mitochondrial
Female
Leigh Disease
Subjects
Details
- ISSN :
- 19401744 and 19401736
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Mitochondrial DNA
- Accession number :
- edsair.doi.dedup.....d64806a53f6919728faa52d6b525f8c6