Vanin-1 T26I polymorphism, hypertension and cardiovascular events in two large urban-based prospective studies in Swedes

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• 作者：C. Fava^a ; ^b ; ^{cristiano.fava@med.lu.se} ; M. Montagnana^a ; ^c ; ¹ ; E. Danese^a ; ^c ; ¹ ; M. Sjö ; gren^a ; P. Almgren^a ; G. Engströ ; m^a ; B. Hedblad^a ; G.C. Guidi^c ; P. Minuz^b ; O. Melander^a
• 关键词：Vanin-1 ; Hypertension ; Association ; Blood pressure ; Oxidant stress ; Genetics
• 刊名：Nutrition, Metabolism and Cardiovascular Diseases
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：23
• 期：1
• 页码：53-60
• 全文大小：200 K

文摘

Background and aims

Vanin-1 (gene name VNN1) is an enzyme with pantetheinase activity generating the amino-thiol cysteamine which is implicated in the regulation of red-ox status through its effect on glutathione. We tested the hypothesis that the rs2294757 VNN1 T26I polymorphism could affect blood pressure (BP) levels, hypertension prevalence, and risk of incident cardiovascular events.

Methods and results

The VNN1 T26I polymorphism was genotyped in 5664 participants of the cardiovascular cohort of the ""Malm? Diet and Cancer"" (MDC-CVA) study and successively in 17874 participants of the ¡°Malm? Preventive project¡±(MPP). The incidence of cardiovascular events was monitored for an average of nearly 12 years of follow-up in the MDC-CVA and for 25 years in the MPP. Both before and after adjustment for sex, age and BMI in the MDC-CVA the polymorphism had a mild lowering effect on diastolic BP and hypertension, especially in females. However in MPP no effect on BP phenotypes was detectable. Before and after adjustment for major cardiovascular risk factors, the hazard ratio for incident ischemic stroke and coronary events in the MDC-CVA was not significantly different in carriers of different genotypes.

Conclusions

Our data do not support a major role for the VNN1 T26I variant in determining BP level and incident ischemic events.