title: [Mutations of the mitochondrial genome and its clinical expression in cardiology].
abstract: One of the great challenges in molecular biology is to understand the mechanisms by which a particular genetic defect gives origin to a specific disease. Mitochondrial DNA is more susceptible than nuclear DNA to mutations. Mitochondrial mutations have been associated with a wide spectrum of disorders characterized by a complex phenotype and actually named mitochondrial cytopathies or oxidative phosphorylation diseases. The objective of this paper is to review the relevant genetic, clinical, and morphologic features of cardiac involvement in this heterogeneous but exciting group of diseases. The clinical features of cardiac involvement in mitochondrial cytopathies vary in the different subgroups of these disorders and in particular, mitochondrial mutations can causes characteristic cardiac abnormalities.
authors.affiliation: Instituto Nacional de Cardiología Ignacio Chávez, México D.F. CARDIO-IMAGEN@hotmail.com
authors.forename: C F
authors.initials: CF
authors.lastname: Barrera-Ramírez
authors.forename: H M
authors.initials: HM
authors.lastname: Barragán-Campos
authors.forename: J
authors.initials: J
authors.lastname: Sánchez-Guerrero
mesh_terms: D004272:DNA, Mitochondrial / Q000235:genetics* / Q000502:physiology; D006331:Heart Diseases / Q000235:genetics; D006801:Humans; D017240:Mitochondrial Myopathies / Q000235:genetics* / Q000473:pathology; D009154:Mutation; D010084:Oxidation-Reduction; D010085:Oxidative Phosphorylation; D010641:Phenotype
chemical_list: D004272:DNA, Mitochondrial