Journal
EUROPEAN JOURNAL OF HUMAN GENETICS
Volume 11, Issue 1, Pages 102-104Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.ejhg.5200908
Keywords
mitochondrial myopathy; MNGIE; mtDNA deletions; thymidine phosphorylase; gliostatin
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Mitochondrial neurogastrointestinal encephalomyopathy syndrome (MNGIE) is a rare autosomal recessive neurologic disorder characterised by multiple mitochondrial DNA deletions. In this study, five Turkish IVINGIE patients are investigated for mtDNA deletions and TP gene mutations. The probands presented all the clinical criteria of the typical IVINGIE phenotype; the muscle biopsy specimens also confirmed the diagnosis with ragged red fibres and cytochrome C oxidase (COX) negative fibres. The mitochondrial DNA analysis revealed no deletions in the probands' skeletal muscle samples. We have identified four novel mutations in the TP gene while one of the patients also harboured a nucleoticle change, which was previously reported as a mutation.
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