Spit May Soon Replace Blood For Diagnosis

The study, published in the Journal of Proteome Research, believes that saliva test will do away with the trauma of having to draw blood from the patients. It will also make disease diagnosis and treatment monitoring cheaper and less invasive.

“Our work, and the work of our partners, has shown that salivary proteins may represent new tools for tracking disease throughout the body, tools that are potentially easier to monitor in saliva than in blood,” added author James Melvin, director of the Center for Oral Biology at the University of Rochester Medical Center.


Saliva, collected from 23 adults of both sexes belonging to different races, was subjected to mass spectrometry, a technique which helped to identify the saliva proteins by measuring their mass and charge.

This research has revealed that about a third of the proteins in saliva were similar to that found in the blood.

Many of them also matched the proteins that played a role in diseases such as Alzheimer’s, Huntington’s and Parkinson’s besides breast cancer, pancreatic cancer and diabetes.

“We believe these projects will dramatically accelerate diagnosis and improve prognosis by treating diseases at the earliest stages,” said Mireya Gonzalez Begne, research assistant professor of dentistry at the center.

“Researchers have already shown that saliva proteins can be used to detect oral cancer and HIV infection. We think this list will soon expand to include leading causes of death like cancer and heart disease, which, if caught early, are much more likely to be successfully treated,” he added.

Source: Medindia

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