Four novel thymidine phosphorylase gene mutations in mitochondrial neurogastrointestinal encephalomyopathy syndrome (MNGIE) patients


Kocaefe Y. Ç. , Erdem S., Ozguc M. , Tan E.

EUROPEAN JOURNAL OF HUMAN GENETICS, cilt.11, ss.102-104, 2003 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 11 Konu: 1
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1038/sj.ejhg.5200908
  • Dergi Adı: EUROPEAN JOURNAL OF HUMAN GENETICS
  • Sayfa Sayıları: ss.102-104

Özet

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.