" /> Histidinuria due to a renal tubular defect - CISMeF





Preferred Label : Histidinuria due to a renal tubular defect;

Type : Phenotype or locus, molecular basis unknown;

Description : Sabater et al. (1976) described 2 brothers, aged 9 and 11 years, with mild mental retardation and histidinuria despite normal blood levels. Histidine loading showed impaired intestinal absorption. The inheritance is presumably autosomal recessive because both parents showed intermediate intestinal absorption. Holmgren et al. (1974) had reported 1 patient with renal histidinuria associated with myoclonic seizures. Kamoun et al. (1981) likewise reported 1 patient with associated histidinuria and myoclonic seizures. Nyhan and Hilton (1992) described a 7-year-old boy with histidinuria without histidinemia. Low concentrations of histidine in plasma were consistent with impaired intestinal and renal tubular absorption of histidine. The patient was developmentally delayed and had some minor anomalies: bilateral nerve deafness of moderate severity; protuberant large and somewhat simple oracles; very short thick fingers and toes with hypoplasia of the toenails; and broad nasal bridge with long shallow philtrum and thin upper lip. Roentgenograms showed that the shortness of the 5th digit resulted from a short rounded middle phalanx that was abnormal in shape. All 5 patients who have been reported have been male. *FIELD* RF 1. Holmgren, G.; Hambraeus, L.; Chateau, P.: Histidinemia and normo-histidinemic histidinuria. Acta Paediat. Scand. 63: 220-224, 1974. 2. Kamoun, P. P.; Parvy, P.; Cathelineau, L.; Meyer, B.: Renal histidinuria. J. Inherit. Metab. Dis. 4: 217-219, 1981. 3. Nyhan, W. L.; Hilton, S.: Histidinuria: defective transport of histidine. Am. J. Med. Genet. 44: 558-561, 1992. 4. Sabater, J.; Ferre, C.; Puliol, M.; Maya, A.: Histidinuria: a renal and intestinal histidine transport deficiency found in two mentally retarded children. Clin. Genet. 9: 117-124, 1976. *FIELD* CS Neuro: Mental retardation; Myoclonic seizures GI: Impaired histidine intestinal absorption GU: Impaired histidine renal tubular absorption;

Inheritance : Autosomal recessive;

Prefixed ID : %235830;

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16/06/2024


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