Diseases

Mitochondrial Mypathy

Back

An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers (cristae).

SYMPTOMS

The symptoms of mitochondrial myopathies include muscle weaknessor exercise intolerance, heart failure or rhythm disturbances,dementia, movement disorders, stroke-like episodes, deafness,blindness, droopy eyelids, limited mobility of the eyes, vomiting, andseizures..

CAUSES

Mitochondrial myopathies are caused by mutations, or changes, in genes — the cells' blueprint for making proteins. They are inheritable, although they can occur with no family history, and they often affect members of the same family in different ways. For more, see causes/inheritance.