International urology and nephrology · 2019
Association of serum IL-18 with protein-energy wasting in end-stage renal disease patients on haemodialysis.
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Bi Xiao, Chu Mingzi, Ai Honglan, Hu Chun, Ding Wei
Аннотация
PURPOSE: Protein-energy wasting (PEW) is highly prevalent in end-stage renal disease (ESRD) patients with inflammation who are on haemodialysis treatment. Interleukin-18 (IL-18) is an important pro-inflammatory cytokine that is significantly elevated in ESRD patients. However, the relationship between PEW and IL-18 is unclear. We therefore performed a cross-sectional study on 100 ESRD patients undergoing haemodialysis to clarify this.
METHODS: PEW was defined according to the diagnostic criteria of the International Society of Renal Nutrition and Metabolism. Inflammation was assessed based on the serum levels of C-reactive protein (CRP), interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α) and IL-18. We analysed the association between PEW and IL-18 by using logistic analysis and linear regression after adjustment for basic characteristics, comorbidities and laboratory findings.
RESULTS: Among the 100 haemodialysis patients who were recruited, 56 had PEW. Even though there was no difference between the PEW group and non-PEW group with regard to disease causes, age, gender, cholesterol, ferritin, and haemoglobin, the levels of inflammation indicators such as CRP, IL-6, TNF-α and IL-1β were significantly higher in the PEW group. Moreover, IL-18 was found to contribute to PEW, but was negatively correlated with pre-albumin after adjustment for possible confounding factors.
CONCLUSIONS: Thus, the findings indicate that IL-18 is associated with PEW in ESRD patients on haemodialysis, which suggests that IL-18 may be involved in the pathogenesis of PEW in this setting.
METHODS: PEW was defined according to the diagnostic criteria of the International Society of Renal Nutrition and Metabolism. Inflammation was assessed based on the serum levels of C-reactive protein (CRP), interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α) and IL-18. We analysed the association between PEW and IL-18 by using logistic analysis and linear regression after adjustment for basic characteristics, comorbidities and laboratory findings.
RESULTS: Among the 100 haemodialysis patients who were recruited, 56 had PEW. Even though there was no difference between the PEW group and non-PEW group with regard to disease causes, age, gender, cholesterol, ferritin, and haemoglobin, the levels of inflammation indicators such as CRP, IL-6, TNF-α and IL-1β were significantly higher in the PEW group. Moreover, IL-18 was found to contribute to PEW, but was negatively correlated with pre-albumin after adjustment for possible confounding factors.
CONCLUSIONS: Thus, the findings indicate that IL-18 is associated with PEW in ESRD patients on haemodialysis, which suggests that IL-18 may be involved in the pathogenesis of PEW in this setting.