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Study: Saliva might be a cancer detector

Dec. 15, 2004 at 3:33 PM   |   Comments

LOS ANGELES, Dec. 15 (UPI) -- California scientists say they have made headway in using Ribonucleic acid in a person's saliva to detect cancers.

A team from the University of California at Los Angeles' Jonsson Cancer Center were able to differentiate head and neck cancer patients from a group of healthy subjects based on biomarkers found in their spittle.

The study provides a first proof of a principle that might result in new diagnostic and early detection tools and lead to further studies using saliva to detect other cancers.

The study used four RNA biomarkers to detect the presence of head and neck cancer with 91 percent sensitivity and accuracy, said Dr. David Wong, a researcher.

"This is a new direction, using a non-invasive fluid for disease diagnostics, particularly in cancer," Wong said. "This is our proof of principle. We now hope to demonstrate the utility of saliva for systemic diagnosis of other diseases such as breast cancer."

Typically, cancer researchers use blood serum and urine to look for cancer signatures.

The study appears in Wednesday's issue of the journal Clinical Cancer Research,

Topics: David Wong
© 2004 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
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