mtDNA diseases

More than 75 human diseases have been associated with mitochondrial dysfunction, and many of these are directly caused by overtly pathogenic mutations in the mitochondrial genome (mtDNA).

In addition, there have been a number of reports that posit a different, subtler role for mtDNA substitutions in the disease process.

Pathology

 mitochondrial DNA mutations at nucleotide (nt) 3460, 11778, or 14484 (classic LHON mutations) in Leber hereditary optic neuropathy (LHON)
 MELAS (mitochondrial myopathy, encephalopathy, lactic acidosis, and strokelike episodes) syndrome
 diabetes
 deafness
 chronic progressive external ophthalmoplegic symptoms
 stroke-like episodes
 accumulation of mitochondrial DNA mutations in human immunodeficiency virus-infected patients treated with nucleoside-analogue reverse-transcriptase inhibitors (12587093)

See also

 mtDNA mutations
 mtDNA rearrangements (mtDNA deletions)

Links

 MITOMAP

References

 Taylor RW, Turnbull DM. Mitochondrial DNA mutations in human disease. Nat Rev Genet. 2005 May;6(5):389-402. PMID: 15861210

 Samuels DC. Mitochondrial DNA repeats constrain the life span of mammals. Trends Genet. 2004 May;20(5):226-9. PMID: 15109774

 Jacobs HT. Disorders of mitochondrial protein synthesis. Hum Mol Genet. 2003 Oct 15;12 Spec No 2:R293-301. PMID: 12928485

 Lightowlers RN, Jacobs HT, Kajander OA. Mitochondrial DNA - all things bad? Trends Genet. 1999 Mar;15(3):91-3. PMID: 10203801