About The Medical Condition Syndrome, MERRF

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Syndrome, MERRF

Syndrome, MERRF Medical Condition Defined & Explained
Syndrome, MERRF Medical Condition

What's The Definition Of The Medical Condition Syndrome, MERRF?

A mitochondrial encephalomyopathy characterized clinically by a mixed seizure disorder, myoclonus, progressive ataxia, spasticity, and a mild myopathy. Dysarthria, optic atrophy, growth retardation, deafness, and dementia may also occur. This condition tends to present in childhood and to be transmitted via maternal lineage. Muscle biopsies reveal ragged-red fibers and respiratory chain enzymatic defects. (From Adams et al., Principles of Neurology, 6th ed, p986)

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