MELAS syndrome

Common card · No. 354534

MELAS (Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like episodes) is one of the family of mitochondrial diseases, which also include MIDD (maternally inherited diabetes and deafness), MERRF syndrome, and Leber's hereditary optic neuropathy. It was first characterized under this name in 1984. A feature of these diseases is that they are caused by defects in the mitochondrial genome which is inherited purely from the female parent. The most common MELAS mutation is one in mitochondrial DNA (mtDNA) referred to as m.3243A>G.

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