P3.06 RELATION BETWEEN HAPTOGLOBIN PHENOTYPE AND ARTERIAL STIFFNESS IN NEWLY DIAGNOSED UNTREATED HYPERTENSIVE PATIENTS
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Arterial stiffness is a valuable predictor of cardiovascular risk in essential hypertension. Arterial stiffness is affected by several factors including genetic polymorphisms. Moreover, increased arterial stiffness has been associated with oxidative stress. Haptoglobin (Hp) is an innate antioxidant which due to molecular heterogeneity forms three phenotypes: 1-1, 2-1, and 2-2. The antioxidant ability is phenotype dependent. In diabetes mellitus Hp 2-2 is a predictor of vascular complications but whether Hp 2-2 predicts vascular complications in essential arterial hypertension has not previously been examined.
The aim of the study was to investigate if Hp 2-2 was positively associated with aortic pulse wave velocity (aPWV) and central systolic blood pressure (sysBP).
We examined 94 newly diagnosed untreated hypertensive patients. aPWV and central sysBP were measured using the SphygmoCor device. Hp phenotype was determined using high-performance liquid chromatography.
The cohort consisted of 42 men and 52 women with an average age of 48 ± 11 years. The median aPWV was 7.6 (6.0; 9.7) m/s in Hp 1-1, 8.0 (5.3; 11.0) m/s in Hp 2-1, and 8.3 (5.5; 10.6) m/s in Hp 2-2. The difference was non-significant (p=0.5, ANOVA). The median central sysBP was 147 (123; 163) mmHg in Hp 1-1, 151 (123; 187) mmHg in Hp 2-1, and 155 (124; 195) mmHg in Hp 2-2. Also, these differences were non-significant (p=0.4, ANOVA).
This study showed a potential yet non-significant difference in aPWV and in central sysBP between Hp phenotypes with the highest levels in Hp 2-2 hypertensive patients.
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TY - JOUR AU - C. Strandhave AU - M. Svensson AU - K. Holdensen AU - C.M. Skov AU - H. Krarup AU - J.H. Christensen PY - 2011 DA - 2011/11/29 TI - P3.06 RELATION BETWEEN HAPTOGLOBIN PHENOTYPE AND ARTERIAL STIFFNESS IN NEWLY DIAGNOSED UNTREATED HYPERTENSIVE PATIENTS JO - Artery Research SP - 158 EP - 158 VL - 5 IS - 4 SN - 1876-4401 UR - https://doi.org/10.1016/j.artres.2011.10.041 DO - 10.1016/j.artres.2011.10.041 ID - Strandhave2011 ER -