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首页> 外文期刊>The neurologist. >Comprehensive Diagnostic Criteria for MELAS Syndrome; a Case Study Involving an Elderly Patient With MT-TWm.5541CT Mutation
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Comprehensive Diagnostic Criteria for MELAS Syndrome; a Case Study Involving an Elderly Patient With MT-TWm.5541CT Mutation

机译：Comprehensive Diagnostic Criteria for MELAS Syndrome; a Case Study Involving an Elderly Patient With MT-TWm.5541CT Mutation

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Introduction:The mitochondrial encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome is a matrilineal hereditary multisystem disease caused by mutations in the mitochondrial DNA. Although the initial diagnostic criteria correlate with a range of clinical phenotypes, including clinical onset after the age of 40, there is still lack of a unified single diagnostic standard for MELAS. Case Report:A 71-year-old female patient with recurrent stroke was reported. Magnetic resonance imaging showed a cerebral gyrus-like diffusion weighted imaging high signal lesion in the parietal-occipital lobe and the area of this lesion expanded with disease progression. The MRS result showed significantly inverted Lac/Lip peaks. The nucleic acid sequencing result displayed a MT-TWm.5541C>T mutation, and a 12.86% mutation rate in the blood sample. The patient had a 6-year history of type 2 diabetes. Conclusion:Patients with the MELAS syndrome may present with a variety of clinical manifestations. Our data demonstrated that, for patients with atypical cerebral infarction and suspected MELAS syndrome, gene sequencing and muscle biopsy should be performed in time. This case provides a reference for the diagnostic criteria of MELAS syndrome.

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