| NARP SYNDROME | |
| NEUROPATHY, ATAXIA, AND RETINITIS PIGMENTOSA | |
|
551500
OMIM = Online Mendelian Inheritance of Men | |
|
644 | |
| unkwown |
|
| G31.8 | |
| rare mitochondrial inheritance mutations in the mitochondrial ATP synthase 6 gene | |
| Laboratory findings | Citrulline normal/dec (plasma) |
| Symptoms | apnea ataxia blindness, visual loss, visual impairment dementia developmental delay early death EMG abnormalities [-] encephalopathy epilepsy hearing defect, deafness learning disability leukoencephalopathy mental retardation muscle weakness neuropathy nystagmus onset, adolescent onset, adulthood peripheral neuropathy proteinuria psychosis renal failure, acute/chronic retinitis pigmentosa retinopathy seizures short stature |