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Toward An 'Electronic Nose' To Sniff Out Kidney Disease In Exhaled Breath

Date:
June 19, 2009
Source:
American Chemical Society
Summary:
Scientists have identified the key substances in exhaled breath associated with healthy and diseased kidneys — raising expectations, they say, for development of long-sought diagnostic and screening tests that literally sniff out chronic renal failure (CRF) in its earliest and most treatable stages.

Scientists report advances toward an "electronic nose" that could detect kidney disease.
Credit: The American Chemical Society

Scientists in Israel have identified the key substances in exhaled breath associated with healthy and diseased kidneys — raising expectations, they say, for development of long-sought diagnostic and screening tests that literally sniff out chronic renal failure (CRF) in its earliest and most treatable stages.

In the new study, Hossam Haick and colleagues point out that the blood and urine tests now used to diagnose CRF can be inaccurate and may come out "normal" even when patients have lost 75 percent of their kidney function. The most reliable test, a kidney biopsy, is invasive and may result in infections and bleeding. Doctors have long hoped for better tests for early detection of kidney disease.

The scientists describe tests of an experimental "electronic nose" on exhaled breath of laboratory rats with no kidney function and normal kidney function. The device identified 27 so-called volatile organic compounds that appear only in the breath of rats with CRF.

The results presented in this study "raise expectations for future capabilities for diagnosis, detection, and screening various stages of kidney disease," they said, noting that the tests could detect patients with early disease who could be treated in ways that could slow its progression.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Haick et al. Sniffing Chronic Renal Failure in Rat Model by an Array of Random Networks of Single-Walled Carbon Nanotubes. ACS Nano, 2009; 3 (5): 1258 DOI: 10.1021/nn9001775

Cite This Page:

American Chemical Society. "Toward An 'Electronic Nose' To Sniff Out Kidney Disease In Exhaled Breath." ScienceDaily. ScienceDaily, 19 June 2009. <www.sciencedaily.com/releases/2009/06/090615100053.htm>.
American Chemical Society. (2009, June 19). Toward An 'Electronic Nose' To Sniff Out Kidney Disease In Exhaled Breath. ScienceDaily. Retrieved April 21, 2014 from www.sciencedaily.com/releases/2009/06/090615100053.htm
American Chemical Society. "Toward An 'Electronic Nose' To Sniff Out Kidney Disease In Exhaled Breath." ScienceDaily. www.sciencedaily.com/releases/2009/06/090615100053.htm (accessed April 21, 2014).

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