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Accumulating data suggests that catestatin, an eclectic neuroendocrine peptide, is involved in the pathophysiology of primary hypertension (PH). Nevertheless, clinical studies concerning its role in PH are still scarce. Therefore, in the present study, we aimed to explore an association between serum catestatin levels, ambulatory blood pressure (BP) and arterial stiffness in patients with PH and healthy controls. In this single-center study, 72 patients aged 40−70 diagnosed with PH, and 72 healthy controls were included. In patients with PH, serum catestatin concentrations were significantly higher in comparison to the healthy controls (29.70 (19.33−49.48) ng/mL vs. 5.83 (4.21−8.29) ng/mL, p &lt; 0.001). Untreated patients had significantly higher serum catestatin than patients treated with antihypertensive drugs (41.61 (22.85−63.83) ng/mL vs. 24.77 (16.41−40.21) ng/mL, p = 0.005). Multiple linear regression analysis showed that serum catestatin levels retained a significant association with mean arterial pressure (β ± standard error, 0.8123 ± 0.3037, p &lt; 0.009) after model adjustments for age, sex and body mass index. Finally, catestatin levels positively correlated with pulse wave velocity (r = 0.496, p &lt; 0.001) and central augmentation index (r = 0.441, p &lt; 0.001), but not with peripheral resistance. In summary, increased serum catestatin concentration in PH, predominantly in the untreated subgroup, and its association with ambulatory BP and arterial stiffness address the role of this peptide in PH.

Serum Catestatin Levels Correlate with Ambulatory Blood Pressure and Indices of Arterial Stiffness in Patients with Primary Hypertension