Deletion of mitochondrial DNA in patient with chronic tubulointerstitial nephritis.
We report a mitochondrial DNA deletion (2.6 kb) in a boy with tubulointerstitial nephritis in whom chronic renal failure and leukodystrophy subsequently developed. Elevated lactate values in plasma and cerebrospinal fluid were suggestive of a defect in the mitochondrial respiratory chain. High amounts of deleted mitochondrial DNA were present in muscle and cerebral white matter. On the basis of this observation, we suggest giving consideration to genetic defects of oxidative phosphorylation in any attempt to determine the origin of unexplained chronic tubulointerstitial nephritis, especially when seemingly unrelated organs are involved.
Rötig
A
A
Unité de Recherches sur les Handicaps Génétiques de l'Enfant INSERM U393, Hôpital des Enfants-Malades, Paris, France.
Goutières
F
F
Niaudet
P
P
Rustin
P
P
Chretien
D
D
Guest
G
G
Mikol
J
J
Gubler
M C
MC
Munnich
A
A
D001483:Base Sequence; D001921:Brain / Q000201:enzymology / Q000473:pathology; D017825:Canavan Disease / Q000150:complications / Q000175:diagnosis* / Q000235:genetics / Q000473:pathology; D002648:Child; D002908:Chronic Disease; D004272:DNA, Mitochondrial / Q000032:analysis*; D004579:Electron Transport / Q000502:physiology; D017353:Gene Deletion; D006801:Humans; D007676:Kidney Failure, Chronic / Q000209:etiology; D008297:Male; D008969:Molecular Sequence Data; D018482:Muscle, Skeletal / Q000201:enzymology / Q000473:pathology; D009395:Nephritis, Interstitial / Q000150:complications / Q000209:etiology* / Q000473:pathology
D004272:DNA, Mitochondrial