Abstract
Background
Insulin resistance is a risk factor for cardiovascular morbidity and mortality in the general and end-stage renal disease populations. In this study, we investigated the association between insulin resistance and arterial stiffness in nondiabetic peritoneal dialysis (PD) patients.
Methods
Fifty-three patients were enrolled. Patients were divided into 2 groups as homeostasis model assessment of insulin resistance (HOMA-IR) ≤2.97 (low) and >2.97 (high). Carotid–femoral pulse wave velocity (c-f PWV) analysis and intima-media thickness of the carotid artery were measured.
Results
Mean age was 46 ± 12 years and HOMA-IR was 2.97 ± 1.77 (0.77–8.88). Mean c-f PWV was 7.6 ± 1.7 m/s. HOMA-IR was positively correlated with age, body mass index, and c-f PWV and negatively with serum HDL cholesterol and parathormone. In linear regression analysis, age and mean arterial pressure were predictors for c-f PWV. When patients were divided into 2 groups according to median age as ≤49 and >50, mean arterial pressure, male gender, and age were predictors for c-f PWV in patients aged ≤49, whereas HOMA-IR was the only predictor for c-f PWV in patients aged >50 years.
Conclusion
Insulin resistance is an independent risk factor for arterial stiffness in PD patients older than 50 years. IR is not associated with carotid intima-media thickness.
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Acknowledgments
The authors would like to thank Dr. Evert Dorhout Mees for his critical review of the manuscript. This study was presented as a free communication in 13th Congress of International Society of Peritoneal Dialysis, 2010, Mexico City and received the ISPD travel grant award.
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The authors declare no conflict of interest.
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Tatar, E., Demirci, M.S., Kircelli, F. et al. Association of insulin resistance with arterial stiffness in nondiabetic peritoneal dialysis patients. Int Urol Nephrol 44, 255–262 (2012). https://doi.org/10.1007/s11255-011-9984-z
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DOI: https://doi.org/10.1007/s11255-011-9984-z