Yonsei Med J.  2003 Aug;44(4):641-647. 10.3349/ymj.2003.44.4.641.

Angiotensinogen and Angiotensin II Type 1 Receptor Gene Polymorphism in Patients with Autosomal Dominant Polycystic Kidney Disease: Effect on Hypertension and ESRD

• Lee KB
• Kim UK

• KMID: 720904
• DOI: http://doi.org/10.3349/ymj.2003.44.4.641

Abstract

Autosomal dominant polycystic kidney disease (ADPKD), a common genetic disease, is characterized by the development of hypertension and end stage renal disease. An increase in the activity of the renin-angiotensin system, due to a renal ischemia caused by cyst expansion, contributes to the development of hypertension and renal failure in ADPKD. Recently, the angiotensinogen (AGT) gene, M235T, and angiotensin II type 1 receptor (ATR) gene, A1166C, polymorphisms have been associated with the susceptibility to develop hypertension and renal disease. We hypothesized that the AGT M235T and ATR A1166C polymorphisms could account for some of the variability in the progression of ADPKD. Genotyping was performed in 108 adult patients with ADPKD, and 105 normotensive healthy controls, using PCR and restriction digestion. We analyzed the effects of the AGT M235T and ATR A1166C polymorphisms on hypertension and age at the end stage renal disease (ESRD). Of the 108 patients with ADPKD, 64 (59%) had hypertension and 24 (22%) reached the ESRD. The prevalence of hypertension were; [MM+MT], [TT] genotypes, 60%, 59% (p=1.00) ; [AA], [AC+CC] genotypes, 60%, 50% respectively (p=0.54). The ages at the onset of ESRD were; [MM+MT], [TT] genotypes, 50 +/- 9 years, 56 +/- 8 years (p=0.07) ; [AA], [AC+CC] genotypes, 54 +/- 8 years, 52 +/- 14 years, respectively (p=0.07). There were no differences in the prevalence of hypertension and the ages at the ESRD in relation to the AGT M235T and ATR A1166C polymorphisms. We suggest that the AGT and ATR gene polymorphisms would not have an effect on hypertension or the ESRD in ADPKD.

Keyword

Polycystic kidney; autosomal dominant; angiotensin; angiotensinogen; polymorphism

MeSH Terms

Adult
Age of Onset
Angiotensinogen/*genetics
Disease Progression
Female
Human
Hypertension/epidemiology/etiology
Kidney Failure, Chronic/epidemiology/etiology
Male
Middle Aged
Polycystic Kidney, Autosomal Dominant/complications/*genetics/physiopathology
Polymorphism (Genetics)
Prevalence
Receptor, Angiotensin, Type 1
Receptors, Angiotensin/*genetics