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Risk of prostate cancer after trans urethral resection of BPH: a cohort and nested case-control study
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Oncology.
Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
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2011 (English)In: Cancers, ISSN 2072-6694, Vol. 3, no 4, 4127-4138 p.Article in journal (Refereed) Published
Abstract [en]

Epidemiological and experimental evidence suggests that inflammation plays a role in both prostate cancer (PCa) and benign prostate hyperplasia (BPH). This study evaluates the risk of PC after transurethral resection (TURP) for BPH and estimates the PCa risk related to presence of inflammation in the resected material. The Pathology Department at the University Hospital of Umea (Umea, Sweden) identified BPH cases (n = 7,901) that underwent TURP between 1982 and 1997. Using these pathological specimens, we compared the incidence of PCa in the cohort to the population and calculated the standardized incidence and mortality ratios (SIR and SMR). Inflammation, the androgen receptor (AR), and p53 were evaluated in a nested case-control study of 201 cases and controls. Inflammation was graded severe or mild-moderate. In the follow-up period after TURP, cases developed prostate cancer and the controls did not. After TURP, SIR for prostate cancer increased [1.26, CI 95% (1.17–1.35)], whereas SMR decreased [0.59, CI 95% (0.47–0.73)]. Presence of inflammation at the time of TURP did not differ between cases and controls nor were there differences in p53 or AR staining. The data suggest a small increased risk of PCa after TURP and decreased PCa mortality. Inflammation at the time of TURP is not associated with PCa risk in this material. The increased PCa risk may be attributed to increased surveillance and PSA screening.

Place, publisher, year, edition, pages
2011. Vol. 3, no 4, 4127-4138 p.
Keyword [en]
prostate cancer, inflammation, benign prostate hyperplasia, androgen receptor, p53
National Category
Cancer and Oncology
URN: urn:nbn:se:umu:diva-55691DOI: 10.3390/cancers3044127OAI: diva2:528713
Available from: 2012-05-28 Created: 2012-05-28 Last updated: 2012-06-05Bibliographically approved

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Karlsson Thellenberg, CamillaBergh, AndersMelin, Beatrice
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