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Toward a urine test for detecting colon cancer

Date:
April 21, 2010
Source:
American Chemical Society
Summary:
Scientists are reporting an advance toward development of a urine test for detecting colon cancer, the third most common cancer in the United States. Such a test could eventually compliment or even reduce the need for colonoscopy, the mainstay screening test used today.

Scientists are reporting an advance toward development of a urine test for detecting colon cancer, the third most common cancer in the United States. Such a test could eventually compliment or even reduce the need for colonoscopy, the mainstay screening test used today.

The study, which analyzes chemical differences in the urine of humans with and without colon cancer, is in ACS' Journal of Proteome Research.

Wei Jia and colleagues point out that colonoscopy, which involves using a flexible, lighted tube to see inside the colon, is the most effective tool for the early screening of colon cancer. However, the procedure is unpleasant, costly, and time-consuming. A urine test could provide an alternative method, the scientists say.

The scientists analyzed urine samples from 123 people -- 60 with colon cancer and 63 without -- for differences in its composition. They identified 16 substances that appear in unusual amounts in colon cancer. The changes include increased levels of tryptophan, one of the 22 amino acids that are found in proteins. The results demonstrate the potential of using urine as a tool for diagnosing colon cancer, the scientists say.


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. Qiu et al. Urinary Metabonomic Study on Colorectal Cancer. Journal of Proteome Research, 2010; 9 (3): 1627 DOI: 10.1021/pr901081y

Cite This Page:

American Chemical Society. "Toward a urine test for detecting colon cancer." ScienceDaily. ScienceDaily, 21 April 2010. <www.sciencedaily.com/releases/2010/04/100421121505.htm>.
American Chemical Society. (2010, April 21). Toward a urine test for detecting colon cancer. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2010/04/100421121505.htm
American Chemical Society. "Toward a urine test for detecting colon cancer." ScienceDaily. www.sciencedaily.com/releases/2010/04/100421121505.htm (accessed April 19, 2014).

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