According to a new study, Homemade saliva test defines the risk of cancer better From the prostate in some men from the standard market test. The results mean that people are with A greater risk of cancer From the prostate, one of the most common types of cancer among men, it can have a new examination option less likely to give false positives that require annoying follow -up.
For the study, published in the “New England Magazine” magazine, the researchers reached the saliva samples to about 6,400 men between the ages of 50 and 60 years from the United Kingdom and use DNA samples to calculate the risk of cancer From the prostate, which is called multi -genetic risk.
After that, additional exploration and biopsies were made with men with Top risk degreesAnd 40 % of them have been diagnosed with prostate cancer. Among the men who have high risk with a standard prostate examination tool, 25 % are already with cancer, that is, a percentage is much worse than the spitting test.
According to Rosalind Esel, one of the authors of the study and a genetic teacher in Cancer Research Institute (ICR), this means that the insertion of saliva test “can” identify men with The risk of aggressive cancer You need more evidence and avoid unnecessary treatments for men who have less risk. “
False positives for standard tests
Standard tool Blood analysis Which tracks a protein called the specified prostate (PSA). The high levels of PSA can be a sign of Prostate cancer. PSA test is usually used in men with greater risk of cancer due to their age or sweat, or because they have symptoms. Men who have high levels of PSA submission Additional tests To confirm if they have cancer.
However, according to ICR, this test tends to give wrong positive Discover low -class cancer They never endanger life, as many men undergo unnecessary exploits, trends and treatments. According to researchers, saliva test can be another examination tool for men with the greatest risk of prostate cancer or symptoms.
Future studies will monitor men with multi -genetic risk degrees to verify If they have prostate cancer. But years can pass before saliva tests become a common practice, due to logistics and The cost of merging it into the health systemAccording to Michael Inoui, a professor of health systems and genes for the residents of Cambridge University, who did not participate in the study. “For me, the study makes you really begin to believe this These investments deserve itHe said.
