LCN2 and nutritional deficiency disease: Inflammation and reactive oxygen species play important roles in the malnutrition of CKD.[43, 44, 45, 46] In addition to being a marker for the progression of CKD,[47, 48, 49]NGAL was initially found to be released by circulating neutrophils and was recently supported as an inflammatory marker.[50]A recent study found that serum NGAL levels correlate with the ALB detection index.