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Gamma Glutamyl Transferase Activity is Associated With Both Paraoxonase Activity and Aortic Stiffness in Hypertensive Patients

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Date
2015-09-01
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GOZUKARA, Mehmet Yavuz
Borekci, Abdurrezzak
Gur, Mustafa
Aksoy, Nurten
SEKER, Taner
KAYPAKLI, Onur
UCAR, Hakan
TURKOGLU, Caner
KOC, Mevlut
MAKCA, Ilyas
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Abstract
Background: We aimed to investigate relationship between gamma glutamyl transferase (GGT) activity with paraoxonase 1 (PON1) activity and aortic stiffness (AS) parameters such as pulse wave velocity (PWV) and augmentation index (AIx). Methods: Measurements were obtained from 324 patients with newly diagnosed essential hypertension (mean age: 55.0 ± 8.2 years). The patients were divided into two groups according to their median GGT values. PWV and AIx were calculated using the single-point method via the Mobil-O-Graph® ARCsolver algorithm. Results: PWV, Aix, and high-sensitive C-reactive protein (hs-CRP) values were higher and PON1 activity values were lower in GGThigh group compared with GGTlow group (P < 0.05, for all). Multiple linear regression analysis showed that GGT activity was independently associated with PWV (β = 0.496, P < 0.001) and PON1 activity (β = -0.343, P < 0.001) as well as hs-CRP (β = 0.334, P < 0.001). Conclusion: These results may support that increased GGT activity would be associated with both impaired antioxidant system and increased AS in hypertensive patients.
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GOZUKARA M. Y. , Borekci A., Gur M., Aksoy N., SEKER T., KAYPAKLI O., UCAR H., TURKOGLU C., KOC M., MAKCA I., et al., -Gamma Glutamyl Transferase Activity is Associated With Both Paraoxonase Activity and Aortic Stiffness in Hypertensive Patients-, JOURNAL OF CLINICAL LABORATORY ANALYSIS, cilt.29, ss.390-396, 2015
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