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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 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. [32] [46] Prostate cancer antigen 3 is a urine test that detects the overexpression of the PCA3 gene, an indicator of prostate cancer. [32] [46] [47] [44]
The test measures the amount of PSA, a protein that your prostate makes, in your blood, explains Richard Levin, M.D., a urologist and vice chief of staff of the medical executive committee at HCA ...
Prostate cancer is the uncontrolled growth of cells in the prostate, a gland in the male reproductive system below the bladder.Abnormal growth of the prostate tissue is usually detected through screening tests, typically blood tests that check for prostate-specific antigen (PSA) levels.
Common Cancer Type Could Be Detected With New Blood Test Although cases rose, prostate cancer mortality rates declined 2.6% per year from 2004 to 2012, and plateaued from 2012 to 2021.
Active surveillance is observation and regular monitoring without invasive treatment. In the context of prostate disease this usually comprises regular PSA blood tests and prostate biopsies. Active surveillance is often used when an early stage, slow-growing prostate cancer is suspected.
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