Representation of main molecular pathways linking mitochondrial dysfunction with TOD development in hypertension. NAD: Nicotinamide adenine dinucleotide; NADPH ox: Nicotinamide adenine dinucleotide phosphate oxidase; GPX: Glutathione peroxidase; CuZnSOD: Copper–zinc superoxide dismutase; CytC: Cytochrome C; CoQ: Coenzyme Q; SERCA: Sarco/endoplasmic reticulum Ca2+–ATPase; MCU: Mitochondrial Ca2+ uniporter; NCX: Na+/Ca2+ exchanger; ADP: Adenosine diphosphate; ATP: Adenosine triphosphate; mtNOS: Mitochondrial nitric oxide synthase; NO: Nitric oxide; MnSOD: Manganese superoxide dismutase; ROS: Reactive oxygen species; TOD: Target organ damage; OMM: Outer mitochondrial membrane; IMS: Intermembrane space; and IMM: Inner mitochondrial membrane; I: Complex I, NADH dehydrogenase; II: Complex II, succinate dehydrogenase; III: Complex III, cytochrome bc1 complex; IV: Complex IV, cytochrome c oxidase; V: Complex V, ATP synthase.