Mitochondrial Diseases: From Genes to Clinical ManifestationsAbout This Hardback The organelles that generate energy for the cell and are found in every cell of the human body except red blood cells are called mitochondria. The group of disorders caused by mitochondrial dysfunction are referred to as mitochondrial diseases. They are caused by acquired or inherited mutations in mitochondrial DNA or in nuclear genes that code for mitochondrial components. Drugs, infections or other environmental factors can also