History of Prostate-Specific Antigen, from Detection to Overdiagnosis

2016 ◽  
pp. 3-16 ◽  
Author(s):  
Brandon J. Manley ◽  
Gerald L. Andriole
2016 ◽  
Vol 10 (2) ◽  
pp. 97-104
Author(s):  
Seyed Behzad Jazayeri ◽  
Young S. Kwon ◽  
Russell McBride ◽  
Michael Leapman ◽  
Shemille Collingwood ◽  
...  

Background: Upgrading following prostate biopsy is very common in clinical practice. This study investigated whether the use of 5-alpha reductase inhibitors (ARI) and alpha blockers affect known clinical predictors of Gleason score upgrading or not. Materials and Methods: A retrospective study on 998 patients treated with robotic assisted laparoscopic prostatectomy for clinically localized biopsy Gleason score 6 prostate cancer were studied. The logarithm of prostate specific antigen concentration, prostate size and tumor volume were compared on the basis of the medication history of 5-ARIs and alpha blockers in the cohort of biopsy Gleason 6 patients with benign prostatic hyperplasia history, and patients whose prostate sizes fall in the top quartile. We compared known clinical and pathologic characteristics associated with upgrading in regression models with and without the addition of medications. Results: Alpha blockers, but not 5-ARI were associated with a bigger prostate. Upgrading was associated with older age (OR 1.03, 95% CI 1.01-1.06), higher BMI (OR 1.00 CI 1.01-1.08), higher log prostate specific antigen (OR 7.32, CI 3.546-15.52), smaller prostate size (OR 0.97, CI 0.96-0.98), fewer biopsy cores (OR 0.96 CI 0.92-0.99), more positive cores (OR 1.20, CI 1.08-1.34), and higher percentage of tumor at biopsy (OR 1.02, CI 1.01-1.03). Neither of the two medication classes were a significant predictor of upgrading. Medications made minimal changes in the multivariate predictive models. Conclusion: Although, alpha blockers were associate with bigger prostate size, the modulating effects of alpha blockers and 5-ARIs on common predictors of Gleason score upgrading was not significant.


2002 ◽  
Vol 9 (4) ◽  
pp. 179-180 ◽  
Author(s):  
A. Russo ◽  
M. Autelitano ◽  
A. Bellini ◽  
L. Bisanti

The use of the prostate specific antigen (PSA) test in the period 1999–2000 in a population of 311 822 men, aged 40 years or more, resident in Milan, Italy, was examined. Data were drawn from the outpatient database of the local health information system. A total of 139 350 PSA tests were used in 83 943 subjects. Overall, 26.9% of the male population aged 40 or older, with no history of prostate cancer, received a PSA test in the 2 year study period. For subjects older than 50 the rate rose to 34%. Results show a high coverage of the male population in northern Italy with screening using the PSA test for prostate cancer.


2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Emilia T. Choto ◽  
Takafira Mduluza ◽  
Francisca Mutapi ◽  
Moses J. Chimbari

Abstract Background Prostatic male genital schistosomiasis and prostate cancer co-existence cases are uncommon however, some studies have indicated that schistosomiasis may trigger development of prostate cancer regardless of age. Schistosomiasis is a public health problem in sub-Saharan Africa and may account for some undocumented cases of schistosomiasis prostatic cancer in schistosome endemic rural communities. It is against this background that we investigated the association between schistosomiasis and risk of prostate cancer development in residents of Murehwa Community, a schistosomiasis endemic area. Methodology We conducted a cross sectional study involving 366 men residing in Murehwa District, Zimbabwe. Schistosoma haematobium and S. mansoni infection was diagnosed using urine filtration and Kato Katz techniques, respectively. Haematuria was detected using urinalysis reagent strip test. A structured questionnaire was used to obtain history of schistosomiasis infection among study participants. Risk of prostate cancer development was assessed by measuring prostate-specific antigen levels in serum using the ELISA. Results Prevalence of S. haematobium and S. mansoni infection was 12.3% and 1.4%, respectively. Individuals with schistosomiasis had higher prostate-specific antigen levels (mean 1.208 ± SD 1.557 ng/mL) compared to those without schistosomiasis (mean 0.7721 ± SD 1.173 ng/mL; p < 0.05). Older individuals > 50 years had higher prostate specific antigen levels (mean 0.7212 ± SD 1.313 ng/mL) compared to individuals < 50 years old (mean 0.4159 ± SD 0.8622 ng/mL; p < 0.05). Prostate-specific antigen levels log10 (mean 0.2584 ± SD 0.2128 ng/mL) and were associated to S. haematobium infection intensity log10 (mean 1.121 ± SD 0.5371 eggs/10 mL), r(s) = − 0.3225, p < 0.05. There was a correlation between prostate-specific antigen levels log10 (mean 0.2246 ± SD 0.1858 ng/mL) and S. haematobium infection intensity log10 (mean 1.169 ± SD 0.5568 eggs/10 mL) among participants with a history of schistosomiasis infection (r(s) = − 0.3520; p < 0.05). There was no correlation between prostate-specific antigen levels of > 4 ng/mL (mean 5.324 ± SD1.568 ng/mL) and schistosome eggs log10 (mean 1.057 ± SD 0.6730 eggs/10 mL; p > 0.05). Conclusion Urogenital schistosome infections and history of schistosome infections were associated with prostate specific antigen levels, an indicator for risk of prostate cancer. Therefore, S. haematobium schistosome egg burden was associated with the risk of prostate cancer development in adult males residing in Murehwa District, Zimbabwe.


2012 ◽  
Vol 19 (4) ◽  
pp. 397-403 ◽  
Author(s):  
Rucsandra Dănciulescu Miulescu ◽  
Suzana Dănoiu ◽  
Denisa Margină ◽  
Sorin Păun ◽  
Cătălina Poiană

AbstractObjectives. Prostate-specific antigen (PSA) is the most used and validated marker ofprostate cancer risk. The aim of this study was to assess PSA levels during treatmentwith testosteronum undecanoat in patients with type 2 diabetes (T2DM). Material and Methods. We evaluated 38 T2DM patients aged between 48 and 61 years withconfirmed hypogonadism. 1000 mg testosterone undecanoate was injectedintramuscular every 10 to 14 weeks. Total testosterone and PSA levels were assessedat baseline and after 6, 12, 24 months of treatment. Results. The average age was55.03 ± 2.40 years and 3 patients (7.89%) had a family history of prostate cancer.Treatment with testosterone undecanoate generated significant changes in serumtotal testosterone (482.29±50.78 ng/dl vs. 246.66±51.50 ng/dl, p < 0.001) but not inserum PSA levels (2.11±.0.49 ng/ml vs. 2.09±0.47 ng/ml, p - NS). Conclusion.Testosterone replacement therapy may normalize serum androgen levels but appearsto have little effect on PSA levels.


2009 ◽  
Vol 182 (5) ◽  
pp. 2250-2256 ◽  
Author(s):  
Daniel M. Moreira ◽  
Joseph C. Presti ◽  
William J. Aronson ◽  
Martha K. Terris ◽  
Christopher J. Kane ◽  
...  

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