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  • Title: Mitochondrial DNA 10158T>C mutation in a patient with mitochondrial encephalomyopathy with lactic acidosis, and stroke-like episodes syndrome: A case-report and literature review (CARE-complaint).
    Author: Wang S, Song T, Wang S.
    Journal: Medicine (Baltimore); 2020 Jun 12; 99(24):e20310. PubMed ID: 32541454.
    Abstract:
    RATIONALE: Mitochondrial encephalomyopathy with lactic acidosis and stroke- like episodes (MELAS) syndrome is caused by mitochondrial respiratory chain dysfunction and oxidative phosphorylation disorder. It is a rare clinical metabolic disease involved with multiple systems. PATIENT CONCERNS: A 22-year-old patient presented with limb convulsion accompanied by loss of consciousness, headache, partial blindness, blurred vision, and so on. DIAGNOSES: Brain magnetic resonance imaging showed a high-intensity area in bilateral occipital cortex, left parietal lobe and cerebellum on diffusion-weighted imaging. These focus did not distribute as vascular territory. The pathological examination of skeletal muscle revealed several succinate dehydrogenase reactive vessels with overreaction and increased content of lipid droplets in some muscle fibers. Genetic testing showed that the patient carried m.10158T>C mutation. INTERVENTIONS: She was provided with traditional arginine hydrochloride therapy and orally medication of coenzyme Q (10 mg). OUTCOMES: Mitochondrial DNA of blood and hair follicle of patient carried m.10158T>C mutation LESSONS:: For the suspected patients of MELAS syndrome, if the hot-spot mutation test is negative, more detection sites should be selected.
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