| Summary: | Cell death leads to increase serum cytokeratin 18 (CK-18) in chronic kidney disease. However, few studies have investigated the serum CK-18 level in relation to nutritional and metabolic biomarkers. We examined the association of dietary intake and lipid profile with serum CK18 level among hemodialysis (HD) patients. Ninety HD patients according to inclusion and exclusion criteria were included in the study. An analysis of clinical characteristics, anthropometric indices, dietary intake, and lipid profile revealed a significant association between serum CK-18 and diabetes, metabolic syndrome, body mass index (BMI), triglyceride (TG), aspartate aminotransferase (AST), alanine aminotransferase (ALT), energy intake (EI), protein intake (PI), and saturated fatty acid (SFA). In a multiple stepwise regression model, after adjusting for confounders in three models, the association between serum CK-18 and serum TG level, dietary SFA and EI remained significant. The model 3 adjusted for DM, Mets, BMI, ALT, AST, and PI; model 2 adjusted for model 1 + EI; and model 1 adjusted for model 2 + SFA. Our findings suggest that the development of hypertriglyceridemia and inadequate EI contribute to higher serum CK-18, which is a cell death biomarker.
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