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Screening for prostate cancer is controversial because of cost and uncertain long-term benefits to patients. [58] Horan echos that sentiment in his book. [59] Private medical institutes, such as the Mayo Clinic, likewise acknowledge that "organizations vary in their recommendations about who should – and who shouldn't – get a PSA screening ...
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.
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.
Richard J. Ablin (May 15, 1940 – October 6, 2023) [1] was an American scientist, most notable for research on prostate cancer.According to the Wall Street Journal: . Richard Ablin, a professor of pathology at University of Arizona College of Medicine, discovered the prostate-specific antigen (PSA) in 1970, and for nearly as long, he has argued that it should not be used for routine screening.
In men aged 55–69 who have been counseled on the known harms and potential benefits of prostate cancer screening, the U.S. Preventive Service Task Force May 2018 statement states, "The use of digital rectal examination as a screening modality is not recommended because there is a lack of evidence on the benefits."
PAP immunohistochemical staining is often used with PSA (staining), by pathologists, to help distinguish poorly differentiated carcinomas.For example, poorly differentiated prostate adenocarcinoma (prostate cancer) and urothelial carcinoma (bladder cancer) may appear similar under the microscope, but PAP and PSA staining can help differentiate them; [7] prostate adenocarcinoma often stains ...