title: Mitochondrial DNA-related disorders.
abstract: Mitochondrial diseases are a group of disorders due to a mitochondrial respiratory chain deficiency. They may depend on mitochondrial genome (mtDNA-related disorders) as well as on a nuclear genome defect (nDNA-related disorders). mtDNA-related disorders encompass an increasing number of clinical pictures associated with more than 250 different provisional or confirmed pathogenic changes in mtDNA. Although some clinical syndromes are nosologically defined, most of the cases present with polymorphous phenotypes ranging from pure myopathy to multi-system involvement. Complexity of mitochondrial genetics is in part responsible for the extreme clinical intra- and inter-familial heterogeneity of this group of diseases. In this review, we briefly report an updated classification and overview the main clinical pictures of this class of diseases.
authors.affiliation: Department of Neuroscience, University of Pisa, Via Roma 67, Pisa, 56126, Italy. mmancuso@inwind.it
authors.forename: Michelangelo
authors.initials: M
authors.lastname: Mancuso
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Filosto
authors.forename: Anna
authors.initials: A
authors.lastname: Choub
authors.forename: Marta
authors.initials: M
authors.lastname: Tentorio
authors.forename: Laura
authors.initials: L
authors.lastname: Broglio
authors.forename: Alessandro
authors.initials: A
authors.lastname: Padovani
authors.forename: Gabriele
authors.initials: G
authors.lastname: Siciliano
mesh_terms: D004272:DNA, Mitochondrial / Q000235:genetics*; D017353:Gene Deletion; D020440:Gene Duplication; D050259:Genes, Mitochondrial / Q000235:genetics; D006801:Humans; D028361:Mitochondrial Diseases / Q000145:classification / Q000235:genetics* / Q000473:pathology; D024101:Mitochondrial Proteins / Q000235:genetics; D009154:Mutation; D017354:Point Mutation
chemical_list: D004272:DNA, Mitochondrial; D024101:Mitochondrial Proteins