Renin-angiotensin system polymorphisms in Taiwanese primary vesicouretenal reflux

Kuo Pao Liu, Ching Yuang Lin, Han Jou Chen, Chou Fu Wei, Guey-Jen Lee

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We studied the angiotensin-converting enzyme (ACE), angiotensinogen (AGT), and angiotensin II type 1 receptor (AT1R) gene polymorphisms for association with susceptibility to primary vesicoureteral reflux (VUR) and disease progression in 74 Taiwanese children, including 16 with end-stage renal disease (ESRD), and 117 normal controls. Polymerase chain reaction-amplified products containing the ACE gene T-5491C, A-5466C, T-3892C, A-3692C, A-240T, Alu I/D, the AGT gene C-532T, G-217A, G-152A, A-20C, A-6G, T174M, T235M, and the AT1R gene A-1138T, T-810A, T-713G, C-521T, AG-214CC, A-153G, A1166C polymorphisms were analyzed by restriction enzyme digestion, gel electrophoresis, or single-strand conformation polymorphism analysis. All the polymorphisms examined were in Hardy-Weinberg equilibrium. The strong non-random association within the ACE, AGT, and AT1R genes suggests low levels of intragenic recombination. None of these polymorphisms showed association with VUR susceptibility. However, the allele frequency distribution of the six ACE polymorphisms among primary VUR patients with or without ESRD was statistically different. The linked ACE T-A-T-A-A-I allele was observed significantly more frequently in VUR children with ESRD (P<0.001). A significant increase of left ventricular mass index was also found in the linked ACE T-A-T-A-A-I allele group compared with the non-ACE T-A-T-A-A-I allele group of patients aged 18 years with renal progression. The AGT A-6G genotype frequencies were significantly different when the analysis was stratified by genotype of the ACE polymorphisms. The data showed that ACE gene polymorphisms were associated with progressive renal deterioration in Taiwanese children with VUR and might act synergistically with the -6 G allele of the AGT gene.

Original languageEnglish
Pages (from-to)594-601
Number of pages8
JournalPediatric Nephrology
Volume19
Issue number6
DOIs
Publication statusPublished - 2004 Jun 1

Fingerprint

Peptidyl-Dipeptidase A
Renin-Angiotensin System
Angiotensinogen
Vesico-Ureteral Reflux
Angiotensin Type 1 Receptor
Genes
Alleles
Chronic Kidney Failure
Genotype
Kidney
Enzymes
Gene Frequency
Genetic Recombination
Disease Progression
Electrophoresis
Digestion
Gels
Polymerase Chain Reaction

Keywords

  • Angiotensin II type 1 receptor
  • Angiotensin-converting enzyme
  • Angiotensinogen
  • Polymorphism and disease progression
  • Vesicoureteral reflux

ASJC Scopus subject areas

  • Nephrology
  • Pediatrics, Perinatology, and Child Health

Cite this

Renin-angiotensin system polymorphisms in Taiwanese primary vesicouretenal reflux. / Liu, Kuo Pao; Lin, Ching Yuang; Chen, Han Jou; Wei, Chou Fu; Lee, Guey-Jen.

In: Pediatric Nephrology, Vol. 19, No. 6, 01.06.2004, p. 594-601.

Research output: Contribution to journalArticle

Liu, Kuo Pao ; Lin, Ching Yuang ; Chen, Han Jou ; Wei, Chou Fu ; Lee, Guey-Jen. / Renin-angiotensin system polymorphisms in Taiwanese primary vesicouretenal reflux. In: Pediatric Nephrology. 2004 ; Vol. 19, No. 6. pp. 594-601.
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AB - We studied the angiotensin-converting enzyme (ACE), angiotensinogen (AGT), and angiotensin II type 1 receptor (AT1R) gene polymorphisms for association with susceptibility to primary vesicoureteral reflux (VUR) and disease progression in 74 Taiwanese children, including 16 with end-stage renal disease (ESRD), and 117 normal controls. Polymerase chain reaction-amplified products containing the ACE gene T-5491C, A-5466C, T-3892C, A-3692C, A-240T, Alu I/D, the AGT gene C-532T, G-217A, G-152A, A-20C, A-6G, T174M, T235M, and the AT1R gene A-1138T, T-810A, T-713G, C-521T, AG-214CC, A-153G, A1166C polymorphisms were analyzed by restriction enzyme digestion, gel electrophoresis, or single-strand conformation polymorphism analysis. All the polymorphisms examined were in Hardy-Weinberg equilibrium. The strong non-random association within the ACE, AGT, and AT1R genes suggests low levels of intragenic recombination. None of these polymorphisms showed association with VUR susceptibility. However, the allele frequency distribution of the six ACE polymorphisms among primary VUR patients with or without ESRD was statistically different. The linked ACE T-A-T-A-A-I allele was observed significantly more frequently in VUR children with ESRD (P<0.001). A significant increase of left ventricular mass index was also found in the linked ACE T-A-T-A-A-I allele group compared with the non-ACE T-A-T-A-A-I allele group of patients aged 18 years with renal progression. The AGT A-6G genotype frequencies were significantly different when the analysis was stratified by genotype of the ACE polymorphisms. The data showed that ACE gene polymorphisms were associated with progressive renal deterioration in Taiwanese children with VUR and might act synergistically with the -6 G allele of the AGT gene.

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