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Prostate-specific antigen. Prostate-specific antigen (PSA) is secreted by the epithelial cells of the prostate gland and can be detected in a sample of blood. [14] PSA is present in small quantities in the serum of men with healthy prostates, but is often elevated in the presence of prostate cancer or other prostate disorders. [15]
Pacific Southwest Airlines (PSA) was a low-cost US airline headquartered in San Diego, California, that operated from 1949 to 1988. It was the first substantial scheduled discount airline. PSA called itself "The World's Friendliest Airline" and painted a smile on the nose of its airplanes, the PSA Grinningbirds. [2]
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.
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Wreckage of PSA 182 after the crash. PSA Flight 182 overtook the Cessna, which was directly below it, both roughly on a 090 (due east) heading. The collision occurred at about 2,600 feet (790 m). [1] According to several witnesses on the ground, first, they heard a loud metallic "crunching" sound, then an explosion, and a fire drew them to look up.
Prostate cancer is the uncontrolled growth of cells in the prostate, a gland in the male reproductive system below the bladder.Abnormal growth of prostate tissue is usually detected through screening tests, typically blood tests that check for prostate-specific antigen (PSA) levels.
The PSA era Prostate Cancer Intervention versus Observation Trial (PIVOT), compared radical prostatectomy to watchful waiting among 731 men (mean age 67 years) with localized prostate cancer. [10] At 12 years, a subset of men with a PSA above 10 ng/ml and those with intermediate to high risk disease had a reduction in prostate cancer death with ...
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