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Mitochondrial disease is a group of disorders caused by mitochondrial dysfunction. Mitochondria are the organelles that generate energy for the cell and are found in every cell of the human body except red blood cells. They convert the energy of food molecules into the ATP that powers most cell functions.
Ragged red fibres (a mitochondrial abnormality) can be found in a number of myopathies other than the inherited primary mitochondrial myopathies. [50] These include axonal Charcot–Marie–Tooth disease types 2CC & 2EE, congenital myasthenic syndrome types 12 & 14, congenital myopathy types 10B & 22A, and MYH7 -related myopathies such as Laing ...
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Because egg cells, but not sperm cells, contribute mitochondria to the developing embryo, only females pass mitochondrial conditions to their children. Mitochondrial disorders can appear in every generation of a family and can affect both males and females, but fathers do not pass mitochondrial traits to their children.
This abnormal buildup causes other symptoms of mitochondrial trifunctional protein deficiency. [ medical citation needed ] The mechanism of this condition indicates that the mitochondrial trifunction protein catalyzes 3 steps in mitochondrial beta-oxidation of fatty acids: long-chain 3-hydroxyacyl-CoA dehydrogenase (LCHAD), long-chain enoyl-CoA ...
Pyruvate dehydrogenase deficiency (also known as pyruvate dehydrogenase complex deficiency or PDCD or PDH deficiency) is a rare neurodegenerative disorder associated with abnormal mitochondrial metabolism.
Mitochondrial DNA depletion syndrome (MDS or MDDS), or Alper's disease, is any of a group of autosomal recessive disorders that cause a significant drop in mitochondrial DNA in affected tissues. Symptoms can be any combination of myopathic , hepatopathic , or encephalomyopathic . [ 1 ]
Symptoms of severe heteroplasmic mitochondrial disorders do not usually appear until adulthood. Many cell divisions and a great deal of time are required for a cell to accumulate enough mutant mitochondria to cause symptoms. An example of this phenomenon is Leber optic atrophy. Generally, individuals with this condition do not experience vision ...