Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Urine protein test: A tipoff to kidney transplant rejection

19.05.2004


Johns Hopkins researchers have developed the basis of an inexpensive, simple urine test that identifies impending kidney failure or rejection following transplant surgery. Their work, presented this week in a special invited lecture to the American Transplant Congress in Boston, Mass., is based on proteins found in urine, and could lead to a urine test kit that may allow many patients to skip painful biopsies.



"This has the potential to radically change the way transplant patients are managed," says study co-author Ernesto P. Molmenti, M.D., Ph.D., associate professor of surgery at Johns Hopkins. "Frequent, noninvasive monitoring could allow doctors to better tailor immunosuppression drugs according to individual patient’s needs, prescribing lower doses to more stable patients or increasing doses for patients who show early signs of rejection."

Molmenti estimates that the test, when developed, will be far less expensive, safer and much less painful than a standard biopsy costing hundreds of dollars in which a doctor inserts a long needle into a patient’s side to obtain a kidney tissue sample.


To build a scientific foundation for the test, Molmenti and colleagues analyzed 34 urine samples from 32 kidney patients at various stages after transplantation. Seventeen patients had organ rejection and 15 had no rejection. Rejection status was confirmed by biopsy. The researchers identified thirteen possible protein markers that were present in most of the urine samples from patients who had organ rejection, but were absent from most non-rejection samples. Three other possible protein markers were found to be lower in patients’ urine with the onset of transplant rejection. A separate analysis using a combination of biomarker candidates in a panel correctly identified 91% of the 34 urine samples.

"Unlike kidney biopsy, a urine test is risk-free, presents no discomfort or restraints to the patients, and samples the entire kidney accurately," says study co-author William Clarke, Ph.D., assistant professor of pathology at Johns Hopkins.


Other researchers involved in the study were Benjamin C. Silverman; Zhen Zhang, Ph.D.; Daniel W. Chan, Ph.D.; and Andrew S. Klein, M.D.

Trent Stockton | EurekAlert!
Further information:
http://www.hopkinsmedicine.org/

More articles from Health and Medicine:

nachricht Team discovers how bacteria exploit a chink in the body's armor
20.01.2017 | University of Illinois at Urbana-Champaign

nachricht Rabies viruses reveal wiring in transparent brains
19.01.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>