Abnormal mitochondria in Rett syndrome: one case report.
A 6-year-9-month-old girl with the characteristic features of Rett syndrome is reported. Clinically, she had microcephaly, psychomotor arrest, deterioration of communication, autistic behaviour, loss of language development, gait apraxia and stereotyped hand washing movement. Amino acid and organic acid analysis were normal. An abnormal rise in serum lactate was noted 120 minutes after oral glucose loading. Muscle biopsy was performed and there was no specific finding noted under light microscope. Electron microscopic evaluation revealed mild accumulation of mitochondria at subsarcolemmal area with abnormal tubular cristae. The cause of Rett syndrome remains obscure. Several articles concerning abnormal mitochondrial morphology or respiratory enzymes have been reported. The exact pathogenesis requires further investigation.[1]References
- Abnormal mitochondria in Rett syndrome: one case report. Mak, S.C., Chi, C.S., Chen, C.H., Shian, W.J. Zhonghua Yi Xue Za Zhi (Taipei) (1993) [Pubmed]
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