OBJECTIVE: Primary renal hypouricaemia is a hereditary clinical disorder characterized by increased renal urate clearance due to isolated renal tubular defect of uric acid transport. There have been only a few studies on primary renal hypouricaemia in Caucasian populations. Defects in the SLC22A12 gene, which encodes the renal urate transporter URAT1, have been reported to be related to the disease pathogenesis. This study was undertaken to elucidate whether SLC22A12 gene mutations are responsible for low serum uric acid levels in Greek people. MATERIAL AND METHODS: Nine Greek Caucasian subjects with primary renal hypouricaemia were included in the study. All had serum uric acid less than 2.5 mg dL(-1) (0.14 mmol L(-1)), fractional excretion of uric acid more than 10% and no other known causes of hypouricaemia. Mutation analysis of the SLC22A12 gene was performed. RESULTS: No mutation was found--only the previously reported silent polymorphism 1246T > C (His 42His) in exon 2 of the SLC22A12 gene. CONCLUSIONS: No previously reported mutation of URAT1 was associated with primary renal hypouricaemia in Greek subjects.
OBJECTIVE:Primary renal hypouricaemia is a hereditary clinical disorder characterized by increased renal urate clearance due to isolated renal tubular defect of uric acid transport. There have been only a few studies on primary renal hypouricaemia in Caucasian populations. Defects in the SLC22A12 gene, which encodes the renal urate transporter URAT1, have been reported to be related to the disease pathogenesis. This study was undertaken to elucidate whether SLC22A12 gene mutations are responsible for low serum uric acid levels in Greek people. MATERIAL AND METHODS: Nine Greek Caucasian subjects with primary renal hypouricaemia were included in the study. All had serum uric acid less than 2.5 mg dL(-1) (0.14 mmol L(-1)), fractional excretion of uric acid more than 10% and no other known causes of hypouricaemia. Mutation analysis of the SLC22A12 gene was performed. RESULTS: No mutation was found--only the previously reported silent polymorphism 1246T > C (His 42His) in exon 2 of the SLC22A12 gene. CONCLUSIONS: No previously reported mutation of URAT1 was associated with primary renal hypouricaemia in Greek subjects.
Authors: Satish A Eraly; Volker Vallon; Timo Rieg; Jon A Gangoiti; William R Wikoff; Gary Siuzdak; Bruce A Barshop; Sanjay K Nigam Journal: Physiol Genomics Date: 2008-02-12 Impact factor: 3.107
Authors: Velibor Tasic; Ann Marie Hynes; Kenichiro Kitamura; Hae Il Cheong; Vladimir J Lozanovski; Zoran Gucev; Promsuk Jutabha; Naohiko Anzai; John A Sayer Journal: PLoS One Date: 2011-12-16 Impact factor: 3.240