[Diagnosis and therapy of mitochondrial diseases].
Mitochondrial diseases are a significant part of neuromuscular diseases. Majority of them is multisystemic disorder. The diagnosis can be established in more and more cases. Beyond the routine neurological examination imaging methods (MRI and MR-spectroscopy) and electrophysiology (EMG, ENG, EEG, evoked potential tests) might be helpful in setting the diagnosis. Raised blood lactate level supports the diagnosis. Muscle biopsy demonstrates mitochondrial abnormalities in the majority of cases. The positivity of genetic tests is low, because the amount of mitochondrial DNA alterations is different in tissues. Therefore other tissue than blood (mainly muscle) is necessary for genetic tests. The other reason is that the respiratory chain is under double -mitochondrial and nuclear - genetic control, and testing the nuclear genes are available only in selected laboratories. The treatment is limited, mainly symptomatic.
Pécsi Tudományegyetem, Klinikai Központ, Neurológiai Klinika, Pécs. endre.pal@kk.pte.hu
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D025063:Chromosome Disorders / Q000175:diagnosis* / Q000628:therapy*; D004272:DNA, Mitochondrial / Q000378:metabolism; D005799:Genes, Dominant; D005808:Genes, Recessive; D005820:Genetic Testing; D006801:Humans; D007418:Intestinal Pseudo-Obstruction / Q000175:diagnosis / Q000628:therapy; D007625:Kearns-Sayre Syndrome / Q000175:diagnosis / Q000628:therapy; D007888:Leigh Disease / Q000175:diagnosis / Q000628:therapy; D017241:MELAS Syndrome / Q000175:diagnosis / Q000628:therapy; D017243:MERRF Syndrome / Q000175:diagnosis / Q000628:therapy; D028361:Mitochondrial Diseases / Q000145:classification / Q000175:diagnosis* / Q000188:drug therapy / Q000235:genetics / Q000628:therapy*; D017237:Mitochondrial Encephalomyopathies / Q000175:diagnosis* / Q000628:therapy*; D017240:Mitochondrial Myopathies / Q000175:diagnosis / Q000628:therapy; D039141:Muscular Dystrophy, Oculopharyngeal; D009886:Ophthalmoplegia / Q000151:congenital; D017246:Ophthalmoplegia, Chronic Progressive External / Q000175:diagnosis / Q000628:therapy; D029242:Optic Atrophy, Hereditary, Leber / Q000175:diagnosis / Q000628:therapy; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D012174:Retinitis Pigmentosa / Q000175:diagnosis / Q000628:therapy
D004272:DNA, Mitochondrial