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New markers for acute kidney injury reported

Date:
March 4, 2014
Source:
University of Louisville
Summary:
Two new markers for acute kidney injury have been determined, thanks to new research. Acute kidney injury (AKI) has been difficult to diagnose and treat early because current markers for it don't show up until several hours after it has begun. The research group, however, validated two new markers -- tissue inhibitor of metalloproteinases (TIMP)-2 and insulin-like growth factor binding protein 7 (IGFBP7) -- in urine that, when assessed together, give clinicians the ability to detect and begin treating AKI much earlier than the current standards.

Saeed A. Jortani, Ph.D., associate clinical professor in the University of Louisville's Department of Pathology and Laboratory Medicine, headed up one of three labs in the United States involved in determining two new markers for acute kidney injury (AKI). The research group's paper, "Validation of Cell-Cycle Arrest Biomarkers for Acute Kidney Injury Using Clinical Adjudication," was posted online this week by the American Journal of Respiratory and Critical Care Medicine.

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AKI has been difficult to diagnose and treat early because current markers for it don't show up until several hours after it has begun. The research group, however, validated two new markers -- tissue inhibitor of metalloproteinases (TIMP)-2 and insulin-like growth factor binding protein 7 (IGFBP7) -- in urine that, when assessed together, give clinicians the ability to detect and begin treating AKI much earlier than the current standards.

The Jortani Clinical Trials Laboratories (JCTL) at UofL were among the independent labs that tested the results of the trial. The other two were at the University of California-San Diego and ARUP Laboratories, Salt Lake City, Utah.

The JCTL is certified under the Clinical Laboratories Improvement Amendments (CLIA) of the Centers for Medicaid & Medicare Services. As a CLIA-certified lab, the JCTL has undergone a rigorous review of its facilities and processes to ensure quality in the laboratory testing and analyses it provides.

AKI was formerly known as acute renal failure. It is an abrupt loss of kidney function, usually occurring within 48 hours or less. It can occur after serious infections, major surgery or taking certain medications. In its most serious form, it can cause the patient to require dialysis and can result in death. Groups at greatest risk for AKI are the elderly, men and African Americans.


Story Source:

The above story is based on materials provided by University of Louisville. Note: Materials may be edited for content and length.


Journal Reference:

  1. Azra Bihorac, Lakhmir S Chawla, Andrew D Shaw, Ali Al-Khafaji, Danielle L Davison, George E DeMuth, Robert Fitzgerald, Michelle Ng Gong, Derrel D Graham, Kyle Gunnerson, Michael Heung, Saeed Jortani, Eric Kleerup, Jay L Koyner, Kenneth Krell, Jennifer LeTourneau, Matthew Lissauer, James Miner, H Bryant Nguyen, Luis M Ortega, Wesley H Self, Richard Sellman, Jing Shi, Joely Straseski, James E Szalados, Scott T Wilber, Michael G Walker, Jason Wilson, Richard Wunderink, Janice Zimmerman, John A Kellum. Validation of Cell-Cycle Arrest Biomarkers for Acute Kidney Injury Using Clinical Adjudication. American Journal of Respiratory and Critical Care Medicine, 2014; 140221125436008 DOI: 10.1164/rccm.201401-0077OC

Cite This Page:

University of Louisville. "New markers for acute kidney injury reported." ScienceDaily. ScienceDaily, 4 March 2014. <www.sciencedaily.com/releases/2014/03/140304141850.htm>.
University of Louisville. (2014, March 4). New markers for acute kidney injury reported. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2014/03/140304141850.htm
University of Louisville. "New markers for acute kidney injury reported." ScienceDaily. www.sciencedaily.com/releases/2014/03/140304141850.htm (accessed October 25, 2014).

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