Objective: To investigate the effect of E-selectin A561C (S128R) polymorphism on blood pressure.
Methods: 347 essential hypertensive patients (male 163 and female 184, age 46.08 +/- 12.49 y, and body mass index 26.13 +/- 3.14 kg/m(2)) and 315 normal controls (male 93 and female 222, age 42.21 +/- 14.67 y, and body mass index 25.66 +/- 3.19 kg/m(2)) were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Phenotypic measurements included blood pressure, blood glucose, serum triglycerides, serum total, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol, serum uric acid, blood urea nitrogen, nitric oxide, endothelin, angiotensin I, and II and plasma aldosterone.
Results: The frequencies of the AC and CC genotypes (6.92%) and C allele (4.76%) were significantly (P = 0.029 and 0.013) higher in hypertensive patients than normal controls (3.17% and 2.22%). The relative risk of hypertension associated with the C allele was 2.197 (95% CI: 1.164-4.144). Both diastolic blood pressure and mean arterial pressure were higher in C allele carriers than AA subjects (P = 0.049 and 0.024). Furthermore, C allele carriers, compared with AA subjects, had higher concentrations of blood glucose, and total and LDL cholesterol (P = 0.031, 0.046, and 0.003) and lower concentrations of nitric oxide (P = 0.036).
Conclusion: The E-selectin A561C (S128R) polymorphism might affect blood pressure in Chinese.
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