Hereditary orotic aciduria heterozygotes accompanied with neurological symptoms.
We report a family with hereditary orotic aciduria heterozygotes. A 3-year-old boy who had been diagnosed as having cerebral palsy and mental retardation presented himself with an increase in excretion of urinary orotic acid. Enzymatic studies revealed that the boy and his healthy mother were hereditary orotic aciduria heterozygote carriers. We can not prove that this pyrimidine disorder caused his neurological symptoms, but his pyrimidine nucleoside supply may have been insufficient in his neonatal period.
Department of Pediatrics, Nagoya City University Medical School, Japan.
M
M
Imaeda
S
S
Sumi
H
H
Imaeda
M
M
Suchi
K
K
Kidouchi
H
H
Togari
Y
Y
Wada
D002547:Cerebral Palsy; D002675:Child, Preschool; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D009962:Orotate Phosphoribosyltransferase / Q000172:deficiency*; D009963:Orotic Acid / Q000652:urine*; D009964:Orotidine-5'-Phosphate Decarboxylase / Q000172:deficiency*; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000201:enzymology / Q000235:genetics* / Q000652:urine
D009963:Orotic Acid; D009962:Orotate Phosphoribosyltransferase; D009964:Orotidine-5'-Phosphate Decarboxylase