title: The relationship of visfatin levels to inflammatory cytokines and left ventricular hypertrophy in hemodialysis and continuous ambulatory peritoneal dialysis patients.
abstract: Visfatin was recently defined as an adipocytokine; however, the pathophysiological role of visfatin is not completely understood. A few studies suggest that visfatin may be a new proinflammatory adipocytokine. The aim of the present study was to compare serum visfatin levels between hemodialysis and continuous ambulatory peritoneal dialysis (CAPD) patients and evaluate the relationship between visfatin levels to IL-6, TNF-alpha, and left ventricular hypertrophy. Serum visfatin, IL-6, and TNF-alpha levels were measured by using the ELISA method, and echocardiographic evaluations were performed in 31 hemodialysis patients, 30 CAPD patients, and 21 healthy volunteers. Serum visfatin levels were higher in the CAPD group (265.27 +/- 387.86 ng/mL) than hemodialysis (97.68 +/- 244.96 ng/mL,) and control (41.33 +/- 48.87 ng/mL) groups (p = 0.04, p = 0.01, respectively). No significant difference was observed between the hemodialysis and control groups. In univariate analysis, visfatin levels were positively correlated with IL-6 (r = 0.24, p = 0.03), TNF-alpha (r = 0.34, p = 0.002), and BMI (r = 0.26, p = 0.03) and negatively correlated with some left ventricular diastolic parameters [Em and Em/Am (r = -0.305, p = 0.01), (r = -0.251, p = 0.03), respectively]. No relationship was found between visfatin and left ventricular mass index. In the linear regression analysis, visfatin levels independently related with TNF-( (beta = 0.369, p = 0.001) and IL-6 (beta = 0.284, p = 0.015). This study has found significantly higher levels of serum visfatin in CAPD patients when compared to healthy individuals. Increased visfatin levels seem to associate with proinflammatory cytokines such as IL-6 or TNF-alpha. As for the effects of on left ventricular structure and functions, visfatin might have negative effects on left ventricular diastolic function parameters but have no effects on left ventricular mass index.
authors.affiliation: Department of Nephrology, Faculty of Medicine, Gazi University, Ankara, Turkey.
authors.forename: Yasemin
authors.initials: Y
authors.lastname: Erten
authors.forename: Fatma Ayerden
authors.initials: FA
authors.lastname: Ebinç
authors.forename: Haksun
authors.initials: H
authors.lastname: Ebinç
authors.forename: Hatice
authors.initials: H
authors.lastname: Paşaoğlu
authors.forename: Canan
authors.initials: C
authors.lastname: Demirtaş
authors.forename: Gülten
authors.initials: G
authors.lastname: Taçoy
authors.forename: Eyüp
authors.initials: E
authors.lastname: Koç
authors.forename: Ulver
authors.initials: U
authors.lastname: Derici
authors.forename: Kadriye Altok
authors.initials: KA
authors.lastname: Reis
authors.forename: Musa
authors.initials: M
authors.lastname: Bali
authors.forename: Turgay
authors.initials: T
authors.lastname: Arinsoy
authors.forename: Sükrü
authors.initials: S
authors.lastname: Sindel
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D016022:Case-Control Studies; D015331:Cohort Studies; D016207:Cytokines / Q000032:analysis / Q000378:metabolism; D018450:Disease Progression; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000453:epidemiology / Q000209:etiology / Q000378:metabolism*; D018836:Inflammation Mediators / Q000032:analysis / Q000378:metabolism*; D015850:Interleukin-6 / Q000097:blood; D007676:Kidney Failure, Chronic / Q000097:blood* / Q000150:complications / Q000628:therapy*; D007677:Kidney Function Tests; D008297:Male; D008875:Middle Aged; D054409:Nicotinamide Phosphoribosyltransferase / Q000097:blood / Q000378:metabolism*; D010531:Peritoneal Dialysis, Continuous Ambulatory; D011336:Probability; D012016:Reference Values; D006435:Renal Dialysis; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014409:Tumor Necrosis Factor-alpha / Q000097:blood
chemical_list: D016207:Cytokines; D018836:Inflammation Mediators; D015850:Interleukin-6; D014409:Tumor Necrosis Factor-alpha; D054409:Nicotinamide Phosphoribosyltransferase