线粒体脑肌病伴高乳酸血症和卒中样发作(mitochondrial encephalomyopathy with lactic acidosis and stroke‑like episodes,MELAS)是一种由线粒体DNA(mitochondrial DNA,mtDNA)或核DNA(nuclear DNA,nDNA)突变导致的多系统代谢性疾病1-2。
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