Serum leptin is a predictor for central arterial stiffness in hypertensive patients

Aim: Serum adipokines have a role in the development of arterial stiffness. We aimed to investigate the risk factors of developing arterial stiffness and the association of leptin and arterial stiffness in hypertensive (HTN) patients. Methods: There were 101 HTN patients enrolled. Fasting blood samples and baseline characteristics were obtained and carotid-femoral pulse wave velocity (cfPWV) was measured with the SphygmoCor system. A cfPWV > 10 m/s was defined as high arterial stiffness, and ≤ 10 m/s as low arterial stiffness. Result: Forty-seven patients (46.5 %) had high arterial stiffness, and had a higher percentage of diabetes (P = 0.044), older age (P < 0.001), higher pulse pressure (P = 0.049), and higher serum blood urea nitrogen (P = 0.029), creatinine (P = 0.027), intact parathyroid hormone (P = 0.004), serum leptin level (P = 0.002), C-reactive protein (P < 0.001), but lower estimated glomerular filtration rate (P = 0.006) compared to patients with low arterial stiffness. After adjusting for factors significantly associated with arterial stiffness by multivariate logistic regression analysis, it revealed that leptin (aOR = 1.037, 95% CI = 1.007–1.067, P = 0.014), having DM (aOR = 4.885, 95% CI = 1.590–15.006, P = 0.006), and elevated CRP (aOR = 1.503, 95% CI = 1.110–2.0371,P = 0.009) were significant independent predictors of arterial stiffness in HTN patients. Conclusions: Serum leptin level could be a predictor for arterial stiffness in HTN patients.