Ads
related to: psa % free range
Search results
Results From The WOW.Com Content Network
Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), P-30 antigen, is a glycoprotein enzyme encoded in humans by the KLK3 gene. PSA is a member of the kallikrein -related peptidase family and is secreted by the epithelial cells of the prostate gland in men and the paraurethral glands in women.
The 4Kscore combines total, free and intact PSA together with human kallikrein 2. [46] It is used to try to determine the risk of a Gleason score greater than 6. [46] The Prostate Health Index (PHI) is a PSA-based blood test for early prostate cancer screening. It may be used to determine when a biopsy is needed.
PSA levels between 4 and 10 suggest you could have about a 25 percent chance of prostate cancer, and levels over 10 signal that your chance of having the cancer is more than 50 percent.
Those with elevated PSA may undergo secondary screening blood tests that measure subtypes of PSA and other molecules to better predict the likelihood that a person will develop aggressive prostate cancer. Many measure "free PSA" – the fraction of PSA unbound to other blood proteins, usually around 10% to 30%.
PSA is a protein that’s produced by prostate tissue, according to the Mayo Clinic. The test can detect high levels of PSA, which might signal prostate cancer. High PSA could also suggest other ...
Prostate-specific antigen based screening for prostate cancer led to earlier detection of prostate cancer (stage migration), and thus altered the course of the disease in the absence of treatment (natural history). Identifying the incidence and prevalence of prostate cancer increased with widespread prostate-specific antigen testing, as did the ...
Ads
related to: psa % free range