Association of Epoxide Hydrolase 2 Gene Arg287Gln with the Risk for Primary Hypertension in Chinese.

BACKGROUND

Epoxide hydrolase 2 () gene coding for soluble epoxide hydrolase is a potential candidate in the pathogenesis of hypertension.

OBJECTIVES

We aimed to assess the association of a missense mutation, R287Q, in ) gene coding for soluble epoxide hydrolase is a potential candidate in the pathogenesis of hypertension.

METHODS

This study involved 782 patients with primary hypertension and 458 healthy controls. Genotyping was done using TaqMan technique. Activity of soluble epoxide hydrolase fusion proteins was evaluated by the conversion of 11,12-EET to corresponding 11,12-DHET using ELISA kit.

RESULTS

After taking carriers of R287Q variant GG genotype as a reference, those with GA genotype had a significantly reduced risk of hypertension (adjusted odds ratio: 0.72, 95% confidence interval: 0.56 to 0.93,  = 0.013). Five significant risk factors were identified, including age, body mass index, total cholesterol, homocysteine, and R287Q variant. These five risk factors for hypertension were represented in a nomogram, with a descent prediction accuracy (C-index: 0.833,  = 0.013). Five significant risk factors were identified, including age, body mass index, total cholesterol, homocysteine, and R287Q variant. These five risk factors for hypertension were represented in a nomogram, with a descent prediction accuracy (C-index: 0.833.

CONCLUSIONS

We provide evidence that R287Q mutation in gene was associated with reduced risk of primary hypertension and low activity of soluble epoxide hydrolase.) gene coding for soluble epoxide hydrolase is a potential candidate in the pathogenesis of hypertension.