Demyelinating disease of central and peripheral nervous systems associated with a A8344G mutation in tRNALys

Erol I., Alehan F., Horvath R., Schneiderat P., Talim B.

NEUROMUSCULAR DISORDERS, cilt.19, sa.4, ss.275-278, 2009 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 4
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.nmd.2009.01.012
  • Dergi Adı: NEUROMUSCULAR DISORDERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.275-278
  • Hacettepe Üniversitesi Adresli: Evet

Özet

We describe a patient with acute combined demyelinating disease of the central and peripheral nervous systems associated with the A8344G mutation in the mitochondrial tRNA lysine gene, A 7-year-old boy presented with acute onset of palpitations, tinnitus, ataxia, bilateral sixth nerve palsy, and flaccid quadriparesis. Serum creatine kinase and lactate were mildly increased. Electromyography showed demyelinating sensory and motor polyneuropathy. Brain magnetic resonance imaging demonstrated demyelination in the left thalamus and Magnetic resonance Spectroscopy revealed I lactate peak corresponding to this lesion. Histologic analysis of the Muscle showed cytochroine c-oxidase-deficient fibers and ragged red fibers. Respiratory chain analyses revealed deficiencies of complexes I and IV. Molecular genetic analyses of the Muscle showed all A8344G (MERRF) mutation in mitochondrial tRNA lysine. To the best of our knowledge, this is the first description Of this Mutation associated with acute combined demyelinating disease of the central and peripheral nervous systems. (C) 2009 Elsevier B.V. All rights reserved.