Results 221 to 230 of about 151,984 (257)

Serum Prostate Specific Antigen and Prostate Specific Antigen Density in Patients Receiving Radical Prostatectomy

International Journal of Urology, 1996
Objective: To study the significance of prostate specific antigen (PSA) and prostate specific antigen density (PSAD) for predicting the risk of occult metastatic disease and extra‐prostatic invasion of prostate cancer in patients receiving radical prostatectomy.Patients and methods: The cases of 41 consecutive patients who underwent radical ...
M, Masai, H, Ito, T, Kotake, K, Nagao
openaire   +2 more sources

AGE-SPECIFIC REFERENCE RANGES FOR SERUM PROSTATE-SPECIFIC ANTIGEN

Urologic Clinics of North America, 1997
Since PSA was discovered nearly 20 years ago, significant progress has been made in improving the clinical utility of this glycoprotein as a tumor marker. Factors contributing to the initial limitations in sensitivity and specificity of PSA as a diagnostic tool for early cancer now are understood better.
T D, Richardson, J E, Oesterling
openaire   +2 more sources

Age-specific reference ranges for serum prostate-specific antigen

Urology, 1995
To assess the relationship of the distribution of serum prostate-specific antigen (PSA) to age in a population of subjects for whom PSA levels were determined as part of a health fair.Between March 19 and March 28, 1993, 1716 men aged 40 to 79 years from eastern Nebraska who participated in "The Health Fair of the Midlands" provided blood for serum PSA
J R, Anderson, D, Strickland, D, Corbin, J A, Byrnes, E, Zweiback   +4 more
openaire   +2 more sources

Effect of Transrectal Ultrasonography of the Prostate on Serum Prostate-Specific Antigen Levels and Free/Total Prostate-Specific Antigen Ratio

Urologia Internationalis, 2000
To study the effect of transrectal ultrasonography (TRUS) on serum total prostate-specific antigen (PSA), free PSA and free/total (f/t) PSA ratio and to determine the reliability of serum total and free PSA levels and f/t PSA ratio after such interventions, serum free and total PSA levels and f/t PSA ratios were determined before, immediately after and
Delibas, N, Serel, TA, Cetin, M, Tahoglu, M, Celik, E   +4 more
openaire   +4 more sources

The Effects of Transurethral Prostatectomy on Serum Prostate Specific Antigen

British Journal of Urology, 1988
Summary— Serum prostate specific antigen (PSA) was recorded in 75 patients immediately before and after transurethral resection of the prostate (TURP). Fifty‐eight patients had benign prostatic hypertrophy (BPH) and 17 had prostatic carcinoma (CaP). In patients with BPH there was a statistically significant rise
S G, Vesey, N M, Goble, M J, Stower, J C, Hammonds, P J, Smith   +4 more
openaire   +2 more sources

CORRELATION OF SERUM PROSTATE SPECIFIC ANTIGEN AND QUANTITATIVE IMMUNOHISTOCHEMISTRY

Journal of Urology, 2000
Serum prostate specific antigen (PSA) in patients with prostate carcinoma is influenced by prostate size, transition zone volume, and tumor differentiation and volume. Immunohistochemistry studies have demonstrated an inverse correlation between PSA staining intensity and tumor grade, yet to our knowledge tissue expression of PSA has never been ...
E G, Weir, A W, Partin, J I, Epstein
openaire   +2 more sources

Serum folate and prostate-specific antigen in the United States

Cancer Causes & Control, 2013
Increased evidence suggests that folate may play a significant role in cancer development. This study investigates the association between levels of serum folate and prostate-specific antigen (PSA), a biomarker for prostate cancer detection.Using data from the 2007 to 2010 National Health and Nutrition Examination Survey, a total of 3,293 men aged 40 ...
Yueh-Ying, Han, Ji Young, Song, Evelyn O, Talbott   +2 more
openaire   +2 more sources

Assay variability in serum prostate‐specific antigen determination

The Prostate, 1995
AbstractConsistency and reproducibility of serum prostate‐specific antigen (PSA) measurement are essential in the application of this analyte to early detection or screening programs. In the present investigation, we sought to compare serum PSA levels determined by the IMx assay (Abbott Laboratories, North Chicago, IL) and the Tandem E (Hybritech Inc.,
M K, Brawer, P, Daum, J C, Petteway, M H, Wener   +3 more
openaire   +2 more sources

Colonoscopy effects on serum prostate specific antigen levels

International Urology and Nephrology, 2004
To evaluate the colonoscopy effects on serum levels of prostate specific antigen (PSA) and PSA ratio.Thirty men were studied (median age 68 years, range 32-89). All of them had their serum PSA (total and free) measured 24 hours prior to colonoscopy and also 24 hours, 7 and 30 days after procedure.14 of 30 (47%) patients, had significantly (p = 0.045 ...
C, Barbatzas, A, Dellis, I, Grivas, N, Trakas, A, Ekonomou, A, Kostakopoulos   +5 more
openaire   +2 more sources

The effects of ejaculation on serum prostate-specific antigen (PSA)

International Urology and Nephrology, 1998
To determine the effects of ejaculation on serum PSA, we measured serum levels just before masturbation and 24 hours and 5 days later in a study group (n=25) aged between 23 and 25 years. In the study group, 16 cases showed a decrease (mean 22.37%, range 10-50%) in serum PSA levels 24 hours after ejaculation, while 6 had higher levels (mean 38.33 ...
I, Yavaşçaoglu, V, Savci, B, Oktay, U, Simşek, M, Ozyurt   +4 more
openaire   +2 more sources