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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/21610
Title: Novel compound heterozygous SLC4A1 mutations in Thai patients with autosomal recessive distal renal tubular acidosis
Authors: Suchai Sritippayawan
Achra Sumboonnanonda
Somkiat Vasuvattakul
Thitima Keskanokwong
Nunghathai Sawasdee
Atchara Paemanee
Peti Thuwajit
Prapon Wilairat
Sumalee Nimmannit
Prida Malasit
Pa Thai Yenchitsomanus
Mahidol University
Keywords: Medicine
Issue Date: 1-Jul-2004
Citation: American Journal of Kidney Diseases. Vol.44, No.1 (2004), 64-70
Abstract: Background: Mutations in the SLC4A1 gene have been found to cause either autosomal dominant (AD) or autosomal recessive (AR) distal renal tubular acidosis (dRTA). The SLC4A1 mutations causing AD dRTA were reported in white patients, whereas those associated with AR dRTA were often found in Southeast Asia. Here, the authors report additional novel SLC4A1 mutations in 3 patients with AR dRTA from 2 unrelated Thai families. Methods: The patients and members of their families were clinically studied. Red cell morphology and sulfate influx were examined. The SLC4A1 gene was screened, analyzed, and confirmed for mutations by molecular genetic techniques. Results: In the first family, the patient had dRTA, rickets, failure to thrive, nephrocalcinosis, and hypokalemic-hyperchloremic metabolic acidosis with a urine pH level of 7.00. He had novel compound heterozygous SLC4A1 G701D/S773P mutations, inherited from clinically normal heterozygous mother and father. In the second family, the patient and his sister had dRTA and Southeast Asian ovalocytosis (SAO) with different clinical severity. The patient had proximal muscle weakness, rickets, nephrocalcinosis, hypokalemia, normal anion gap metabolic acidosis, and urine pH level of 6.80. His sister was asymptomatic but the urine pH level could not be lowered to below 5.50 after a short acid load. Both siblings had compound heterozygous SLC4A1 SAO/R602H mutations. Conclusion: Two novel compound heterozygous SLC4A1 G701D/S773P and SAO/R602H mutations were identified in Thai patients with AR dRTA. © 2004 by the National Kidney Foundation, Inc.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=3042817603&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/21610
ISSN: 02726386
Appears in Collections:Scopus 2001-2005

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