Jie-Wei Luo1, Hui Chen, Xiao-Ying Wu. 1. Department of Cardiology, Fujian Provincial Hospital, Fuzhou. docluo0421@yahoo.com.cn
Abstract
OBJECTIVE: To explore the relationship between the genetic variants of the norepinephrine transporter gene solute carrier family 6 member 2 (SLC6A2) and blood stasis pattern (BSP) in patients with essential hypertension (EH). METHODS: DNA was extracted from the peripheral blood of 830 EH patients (532 were typed as BSP and 298 as non-BSS) and 512 persons with normal blood pressure (for control), to detect the polymorphisms of SLC6A2 promoter-3 and 2 by PCR-RFLP, and estimate the haplotype frequency adopting SHEsis program. RESULTS: Chi2 partition showed that frequency of promoter-2-GG genotype in EH patients of BSP was lower than that in the EH patients of non-BSP and the normal control (P = 0.001); while that of promoter-3-GG/GA in the EH patients with severe BSP was the highest (P < 0.001). Logistic regression analysis showed that after the miscellaneous factors being rectified, with the reference category of EH-non-BSP, the relative odds ratio (OR) of promoter-2-GC/CC genotype for EH-BSP was 1.535 (95% CI: 1.094-2.155, P = 0.013); that of promoter-3-AG/GG genotype for EH with severe BSP was 1.925 (95% CI: 1.199-3.091, P = 0.007); while OR of G-C haplotype (promoter-3-promoter-2) for EH-BSP was 2.127 (95% CI: 1.202-3.765, P = 0.010), showing the strongest intensity. CONCLUSION: SLC6A2 promoter-3-GA/GG genotype may be a susceptibility gene for patients of EH with severe BSP; promoter-2-GC/CC and G-C haplotype might be the susceptible factors to EH-BSP.
OBJECTIVE: To explore the relationship between the genetic variants of the norepinephrine transporter gene solute carrier family 6 member 2 (SLC6A2) and blood stasis pattern (BSP) in patients with essential hypertension (EH). METHODS: DNA was extracted from the peripheral blood of 830 EH patients (532 were typed as BSP and 298 as non-BSS) and 512 persons with normal blood pressure (for control), to detect the polymorphisms of SLC6A2 promoter-3 and 2 by PCR-RFLP, and estimate the haplotype frequency adopting SHEsis program. RESULTS: Chi2 partition showed that frequency of promoter-2-GG genotype in EH patients of BSP was lower than that in the EH patients of non-BSP and the normal control (P = 0.001); while that of promoter-3-GG/GA in the EH patients with severe BSP was the highest (P < 0.001). Logistic regression analysis showed that after the miscellaneous factors being rectified, with the reference category of EH-non-BSP, the relative odds ratio (OR) of promoter-2-GC/CC genotype for EH-BSP was 1.535 (95% CI: 1.094-2.155, P = 0.013); that of promoter-3-AG/GG genotype for EH with severe BSP was 1.925 (95% CI: 1.199-3.091, P = 0.007); while OR of G-C haplotype (promoter-3-promoter-2) for EH-BSP was 2.127 (95% CI: 1.202-3.765, P = 0.010), showing the strongest intensity. CONCLUSION:SLC6A2 promoter-3-GA/GG genotype may be a susceptibility gene for patients of EH with severe BSP; promoter-2-GC/CC and G-C haplotype might be the susceptible factors to EH-BSP.