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  • Title: Urinary neutrophil gelatinase-associated lipocalin and L-type fatty acid binding protein as diagnostic markers of early acute kidney injury after liver transplantation.
    Author: Li Y, Zhu M, Xia Q, Wang S, Qian J, Lu R, Che M, Dai H, Wu Q, Ni Z, Lindholm B, Axelsson J, Yan Y.
    Journal: Biomarkers; 2012 Jun; 17(4):336-42. PubMed ID: 22455661.
    Abstract:
    OBJECTIVE: We examined the value of two potential novel urinary biomarkers, neutrophil gelatinase-associated lipocalin (NGAL) and L-type fatty acid binding protein (L-FABP), in diagnosing acute kidney injury (AKI) in liver transplant recipients. METHODS: NGAL and L-FABP in urinary sample from Twenty-five patients before surgery and at 2, 4, 6, 12, 24, 48, 72 and 120 h after the anhepatic phase were tested. Standard statistics were used along with receiver-operating characteristic (ROC) analysis to evaluate the diagnostic value of selected markers. RESULTS: Urinary NGAL was only slightly elevated at 2 h in the non-AKI group while rose and stayed high from 2-6 h in the AKI group. However, urinary L-FABP rose transiently in both groups 2-120 h following surgery. The level of urinary NGAL presented differences at 2-6 h (p < 0.05) and urinary L-FABP at 4 h (p < 0.05) between AKI and non-AKI groups. ROC analysis showed that area under the curves (AUCs) of NGAL were 0.766, 0.773, and 0.773 at 2, 4 and 6 h respectively while 0.760 of L-FABP at 4 h. CONCLUSION: Urinary NGAL rather than L-FABP appeared to be a sensitive and specific marker of AKI in liver transplant recipients.
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