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Tips from the American Journal of Pathology
Date:3/24/2009

Tracking Acute Kidney Injury

Dr. Eisei Noiri and colleagues at the University of Tokyo, Japan identified a novel biomarker to monitor acute kidney injury. They present their data in the April 2009 issue of The American Journal of Pathology.

Acute kidney injury may be reversible if treated promptly and appropriately. Novel biomarkers therefore need to be developed to identify injury at early time points as well as to estimate the severity of the damage.

Negishi et al examined whether levels of urinary L-type fatty acid-binding protein (L-FABP), a protein found in the kidney that is secreted in the urine upon kidney injury, could be used to monitor acute kidney injury. Levels of L-FABP correlated with the level of acute kidney injury at significantly earlier time points than levels of conventional renal markers such as blood urea nitrogen (BUN) or urinary N-acetyl-D-glucosaminidase (NAG). In addition, L-FABP showed better correlation than BUN or NAG with final histological injury scores, especially at early time points.

L-FABP thus represents a better choice than conventional renal markers for evaluating early acute kidney injury. Future studies will "evaluat[e] various human AKI populations to confirm the significance of urinary L-FABP as a forecasting biomarker of pathological and functional damage."

Negishi K, Noiri E, Doi K, Maeda R, Sugaya T, Portilla D, Fujita T : Monitoring of urinary L-type fatty acid binding protein predicts histological severity of acute kidney injury. Am J Pathol 2009, 174: 1154-1159


New Target for Alzheimer's Disease Therapy

Researchers at the VU University Medical Center, Amsterdam and the University of Amsterdam, The Netherlands discovered that the unfolded protein response contributes to nerve cell death in Alzheimer's Disease. This report can be found in the April 2009 issue of The American Journal of Pathology.'/>"/>

Contact: Angela Colmone
acolmone@asip.org
301-634-7953
American Journal of Pathology
Source:Eurekalert

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