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Int J Urol. 1997 May;4(3):304-6.

Family study of 2,8-dihydroxyadenine stone formation: report of two cases of a compound heterozygote for adenine phosphoribosyltransferase deficiency (APRT*J/APRT*Q0).

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1
Department of Urology, Kanazawa Medical University, Ishikawa, Japan.

Abstract

The family members of 2 formers of 2,8-dihydroxyadenine stones were examined for history, adenine phosphoribosyltransferase (APRT) activity, genotype, urinary sediment, and urinary constituents. The patients' father showed a genotype of APRT*1/APRT*Q0, and their mother showed APRT*1/APRT*J. Patients 1 and 2 were compound heterozygotes for adenine phosphoribosyltransferase deficiency (APRT*J/APRT*Q0), and APRT activities were 4.5% and 4.0% of normal, respectively. 2,8-Dihydroxyadenine crystals could be seen in the urinary sediment. Treatment with allopurinol completely stopped new stone formation for 5 years in patient 1.

PMID:
9255672
[Indexed for MEDLINE]
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