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Urine biomarker test can diagnose as well as predict rejection of transplanted kidneys
Date:7/3/2013

NEW YORK (July 4, 2013) -- A breakthrough non-invasive test can detect whether transplanted kidneys are in the process of being rejected, as well as identify patients at risk for rejection weeks to months before they show symptoms, according to a study published in The New England Journal of Medicine (NEJM).

By measuring just three genetic molecules in a urine sample, the test accurately diagnoses acute rejection of kidney transplants, the most frequent and serious complication of kidney transplants, says the study's lead author, Dr. Manikkam Suthanthiran, the Stanton Griffis Distinguished Professor of Medicine at Weill Cornell Medical College and chief of transplantation medicine, nephrology and hypertension at NewYork-Presbyterian Hospital/Weill Cornell Medical Center.

"It looks to us that we can actually anticipate rejection of a kidney several weeks before rejection begins to damage the transplant," Dr. Suthanthiran says.

The test may also help physicians fine-tune the amount of powerful immunosuppressive drugs that organ transplant patients must take for the rest of their lives, says Dr. Suthanthiran, whose laboratory developed what he calls the "three-gene signature" of the health of transplanted kidney organs.

"We have, for the first time, the opportunity to manage transplant patients in a more precise, individualized fashion. This is good news since it moves us from the current one-size-fits-all treatment model to a much more personalized plan," he says, noting that too little immunosuppression leads to organ rejection and too much can lead to infection or even cancer.

Given the promise of the test first developed in the Suthanthiran laboratory at Weill Cornell and previously reported in NEJM, the National Institutes of Health (NIH) sponsored a multicenter clinical trial of nearly 500 kidney transplant patients at five medical centers, including NewYork-Presbyterian/Weill Cornell Me
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Contact: Linda Kamateh
lib9027@nyp.org
212-821-0560
Weill Cornell Medical College
Source:Eurekalert

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