Methylmalonic acidemia

Methylmalonic acidemia (MMA), also called methylmalonic aciduria, first characterized by Oberholzer et al. in 1967, is an autosomal recessive metabolic disorder. It is a classical type of organic acidemia. The result of this condition is the inability to properly digest specific fats and proteins, which in turn leads to a buildup of a toxic level of methylmalonic acid in the blood.