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Sökning: swepub > Umeå universitet > Stattin Pär > (2010)

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1.
  • Stattin, Pär, et al. (författare)
  • Outcomes in localized prostate cancer: National Prostate Cancer Register of Sweden follow-up study.
  • 2010
  • Ingår i: Journal of the National Cancer Institute. - : Oxford University Press (OUP). - 1460-2105 .- 0027-8874. ; 102:13, s. 950-8
  • Tidskriftsartikel (refereegranskat)abstract
    • Treatment for localized prostate cancer remains controversial. To our knowledge, there are no outcome studies from contemporary population-based cohorts that include data on stage, Gleason score, and serum levels of prostate-specific antigen (PSA).
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2.
  • Bratt, Ola, et al. (författare)
  • Effects of prostate-specific antigen testing on familial prostate cancer risk estimates
  • 2010
  • Ingår i: Journal of the National Cancer Institute. - : Oxford Journals. - 0027-8874 .- 1460-2105. ; 102:17, s. 1336-1343
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Family history is a strong risk factor for prostate cancer. The aim of this study was to investigate whether increased diagnostic activity is related to the incidence of prostate cancer among brothers of men with prostate cancer. Methods Data were from the nationwide population-based Prostate Cancer Database Sweden (PCBaSe Sweden), which includes data from the National Prostate Cancer Register, the Swedish Cancer Register, the Register of the Total Population, the Multi-Generation Register, and the Census database. We investigated the relationship of tumor characteristics, time from diagnosis of the index patient (ie, prostate cancer patients in the National Prostate Cancer Register for whom at least one brother and their father could be identified), calendar period, geographic factors, and socioeconomic status to standardized incidence ratios (SIRs) for prostate cancer among 22 511 brothers of 13 975 index patients in PCBaSe Sweden. Results Brothers of index patients with prostate cancer were at increased risk for a diagnosis of prostate cancer (SIR = 3.1, 95% confidence interval [CI] = 2.9 to 3.3). Risk was higher for T1c tumors (SIR = 3.4, 95% CI = 3.2 to 3.8) than for metastatic tumors (SIR = 2.0, 95% CI = 1.5 to 2.6), and risk of T1c tumors was especially high during the first year after the diagnosis of the index patient (SIR = 4.3, 95% CI = 3.8 to 4.9), compared with the following years (SIR range = 2.8–3.3), and for brothers of index patients who had a higher socioeconomic status (SIR = 4.2, 95% CI = 3.7 to 4.7), compared with brothers of index patients with lower socioeconomic status (SIR = 2.8, 95% CI = 2.4 to 3.2). Conclusions Increased diagnostic activity among men with a family history of prostate cancer appears to contribute to their increased risk of prostate cancer and to lead to detection bias in epidemiological and genetic studies of familial prostate cancer.
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3.
  • Bratt, Ola, et al. (författare)
  • Prostate cancer diagnosed after prostate-specific antigen testing of men without clinical signs of the disease : a population-based study from the National Prostate Cancer Register of Sweden
  • 2010
  • Ingår i: Scandinavian Journal of Urology and Nephrology. - : Informa Healthcare. - 0036-5599 .- 1651-2065. ; 44:6, s. 384-390
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. To investigate the effects of prostate-specific antigen (PSA) testing of men without clinical signs of prostate cancer on the incidence of prostate cancer in Sweden. Material and methods. Information on the cause of diagnosis, tumour characteristics and primary treatment for patients diagnosed with prostate cancer between January 1999 and December 2007 was extracted from the National Prostate Cancer Register of Sweden. This register includes data for 95% of Swedish prostate cancer cases. Results. The total age-standardized annual incidence of prostate cancer per 100 000 men increased from 187 in 1999 to 233 in 2004, but decreased thereafter to 196 in 2007. The incidence of asymptomatic cases also peaked in 2004 (at 62 per 100 000 men), but varied six-fold between different counties in that year (16–98 per 100 000 men). Asymptomatic cases (n = 17 143) constituted 15% of all new cases in 2000 and 30% in 2007. Almost as many cases were diagnosed in stage T1c in men with symptoms, usually from the lower urinary tract. Together these two groups constituted 29% of all new cases in 2000 and 52% in 2007. It was estimated that at least one-third of all Swedish men aged 50–75 years had a PSA test between 2000 and 2007. Conclusions. Even though screening for prostate cancer is not recommended in Sweden, PSA testing of men without clinical signs of prostate cancer is common. The effects on the Swedish incidence of prostate cancer were similar to those reported from the USA.
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4.
  • Van Hemelrijck, Mieke, et al. (författare)
  • Absolute and relative risk of cardiovascular disease in men with prostate cancer : results from the Population-Based PCBaSe Sweden
  • 2010
  • Ingår i: Journal of Clinical Oncology. - : American Society of Clinical Oncology. - 0732-183X .- 1527-7755. ; 28:21, s. 3448-3456
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose Cardiovascular disease (CVD) is a potential adverse effect of endocrine treatment (ET) for prostate cancer (PC). We investigated absolute and relative CVD risk in 76,600 patients with PC undergoing ET, curative treatment, or surveillance. Methods PCBaSe Sweden is based on the National Prostate Cancer Register, which covers more than 96% of PC cases. Standardized incidence ratios (SIRs) and standardized mortality ratios (SMRs) of ischemic heart disease (IHD), acute myocardial infarction (MI), arrhythmia, heart failure, and stroke were calculated to compare observed and expected (using total Swedish population) numbers of CVD, taking into account age, calendar time, and previous CVD. Results Between 1997 and 2007, 30,642 patients with PC received primary ET, 26,432 curative treatment, and 19,527 surveillance. SIRs for CVD were elevated in all men with the highest for those undergoing ET, independent of circulatory disease history (SIR MI for men without circulatory disease history: 1.40 [95% CI, 1.31 to 1.49], 1.15 [95% CI, 1.01 to 1.31], and 1.20 [95% CI, 1.11 to 1.30] for men undergoing ET, curative treatment, and surveillance, respectively). Absolute risk differences (ARD) showed that two (arrhythmia) to eight (IHD) extra cases of CVD would occur per 1,000 person-years. SMRs showed similar patterns, with ARD of zero (arrhythmia) to three (IHD) per 1,000 person-years. Conclusion Increased relative risks of nonfatal and fatal CVD were found among all men with PC, especially those treated with ET. Because ET is currently the only effective treatment for metastatic disease and the ARDs were rather small, our findings indicate that CVD risk should be considered when prescribing ET but should not constitute a contraindication when the expected gain is tangible.
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5.
  • Van Hemelrijck, Mieke, et al. (författare)
  • Risk of thromboembolic diseases in men with prostate cancer : results from the population-based PCBaSe Sweden
  • 2010
  • Ingår i: The Lancet Oncology. - : Elsevier. - 1470-2045 .- 1474-5488. ; 11:5, s. 450-458
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Cancer is associated with an increased risk of thromboembolic diseases, but data on the association between prostate cancer and thromboembolic diseases are scarce. We investigated the risk of thromboembolic disease in men with prostate cancer who were receiving endocrine treatment, curative treatment, or surveillance. Methods We analysed data from PCBaSe Sweden, a database based on the National Prostate Cancer Register, which covers over 96% of prostate cancer cases in Sweden. Standardised incidence ratios (SIR) of deep-venous thrombosis (DVT), pulmonary embolism, and arterial embolism were calculated by comparing observed and expected (using the total Swedish male population) occurrences of thromboembolic disease, taking into account age, calendar-time, number of thromboembolic diseases, and time since previous thromboembolic disease. Findings Between Jan 1, 1997, and Dec 31, 2007, 30 642 men received primary endocrine therapy, 26 432 curative treatment, and 19 526 surveillance. 1881 developed a thromboembolic disease. For men on endocrine therapy, risks for DVT (SIR 2·48, 95% CI 2·25–2·73) and pulmonary embolism (1·95, 1·81–2·15) were increased, although this was not the case for arterial embolism (1·00, 0·82–1·20). Similar patterns were seen for men who received curative treatment (DVT: 1·73, 1·47–2·01; pulmonary embolism: 2·03, 1·79–2·30; arterial embolism: 0·95, 0·69–1·27) and men who were on surveillance (DVT: 1·27, 1·08–1·47; pulmonary embolism: 1·57, 1·38–1·78; arterial embolism: 1·08, 0·87–1·33). Increased risks for thromboembolic disease were maintained when patients were stratified by age and tumour stage. Interpretation All men with prostate cancer were at higher risk of thromboembolic diseases, with the highest risk for those on endocrine therapy. Our results indicate that prostate cancer itself, prostate cancer treatments, and selection mechanisms all contribute to increased risk of thromboembolic disease. Thromboembolic disease should be a concern when managing patients with prostate cancer.
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6.
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7.
  • Xu, Jianfeng, et al. (författare)
  • Inherited genetic variant predisposes to aggressive but not indolent prostate cancer.
  • 2010
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 1091-6490 .- 0027-8424. ; 107:5, s. 2136-40
  • Tidskriftsartikel (refereegranskat)abstract
    • Autopsy studies suggest that most aging men will develop lesions that, if detected clinically, would be diagnosed as prostate cancer (PCa). Most of these cancers are indolent and remain localized; however, a subset of PCa is aggressive and accounts for more than 27,000 deaths in the United States annually. Identification of factors specifically associated with risk for more aggressive PCa is urgently needed to reduce overdiagnosis and overtreatment of this common disease. To search for such factors, we compared the frequencies of SNPs among PCa patients who were defined as having either more aggressive or less aggressive disease in four populations examined in the Genetic Markers of Susceptibility (CGEMS) study performed by the National Cancer Institute. SNPs showing possible associations with disease severity were further evaluated in an additional three independent study populations from the United States and Sweden. In total, we studied 4,829 and 12,205 patients with more and less aggressive disease, respectively. We found that the frequency of the TT genotype of SNP rs4054823 at 17p12 was consistently higher among patients with more aggressive compared with less aggressive disease in each of the seven populations studied, with an overall P value of 2.1 x 10(-8) under a recessive model, exceeding the conservative genome-wide significance level. The difference in frequency was largest between patients with high-grade, non-organ-confined disease compared with those with low-grade, organ-confined disease. This study demonstrates that inherited variants predisposing to aggressive but not indolent PCa exist in the genome, and suggests that the clinical potential of such variants as potential early markers for risk of aggressive PCa should be evaluated.
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8.
  • Klein, Robert J, et al. (författare)
  • Blood biomarker levels to aid discovery of cancer-related single-nucleotide polymorphisms : kallikreins and prostate cancer
  • 2010
  • Ingår i: Cancer Prevention Research. - : American Association for Cancer Research. - 1940-6207 .- 1940-6215. ; 3:5, s. 611-619
  • Tidskriftsartikel (refereegranskat)abstract
    • Polymorphisms associated with prostate cancer include those in three genes encoding major secretory products of the prostate: KLK2 (encoding kallikrein-related peptidase 2; hK2), KLK3 (encoding prostate-specific antigen; PSA), and MSMB (encoding beta-microseminoprotein). PSA and hK2, members of the kallikrein family, are elevated in sera of men with prostate cancer. In a comprehensive analysis that included sequencing of all coding, flanking, and 2 kb of putative promoter regions of all 15 kallikrein (KLK) genes spanning approximately 280 kb on chromosome 19q, we identified novel single-nucleotide polymorphisms (SNP) and genotyped 104 SNPs in 1,419 cancer cases and 736 controls in Cancer Prostate in Sweden 1, with independent replication in 1,267 cases and 901 controls in Cancer Prostate in Sweden 2. This verified prior associations of SNPs in KLK2 and in MSMB (but not in KLK3) with prostate cancer. Twelve SNPs in KLK2 and KLK3 were associated with levels of PSA forms or hK2 in plasma of control subjects. Based on our comprehensive approach, this is likely to represent all common KLK variants associated with these phenotypes. A T allele at rs198977 in KLK2 was associated with increased cancer risk and a striking decrease of hK2 levels in blood. We also found a strong interaction between rs198977 genotype and hK2 levels in blood in predicting cancer risk. Based on this strong association, we developed a model for predicting prostate cancer risk from standard biomarkers, rs198977 genotype, and rs198977 x hK2 interaction; this model had greater accuracy than did biomarkers alone (area under the receiver operating characteristic curve, 0.874 versus 0.866), providing proof in principle to clinical application for our findings.
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9.
  • Hammarsten, Peter, et al. (författare)
  • Low levels of phosphorylated epidermal growth factor receptor in nonmalignant and malignant prostate tissue predict favorable outcome in prostate cancer patients.
  • 2010
  • Ingår i: Clinical Cancer Research. - 1078-0432 .- 1557-3265. ; 16:4, s. 1245-1255
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: To explore if the expression of phosphorylated epidermal growth factor receptor (pEGFR) in nonmalignant and malignant prostate tissue is a potential prognostic marker for outcome in prostate cancer patients. EXPERIMENTAL DESIGN: We used formalin-fixed tissues obtained through the transurethral resection of the prostate from 259 patients diagnosed with prostate cancer after the transurethral resection of the prostate, and patients were then followed with watchful waiting. Tissue microarrays of nonmalignant and malignant prostate tissue were stained with an antibody against pEGFR. The staining pattern was scored and related to clinicopathologic parameters and to outcome. RESULTS: Low phosphorylation of EGFR in prostate epithelial cells, both in the tumor and surprisingly also in the surrounding nonmalignant tissue, was associated with significantly longer cancer-specific survival in prostate cancer patients. This association remained significant when Gleason score and local tumor stage were added together with pEGFR to a Cox regression model. Tumor epithelial pEGFR immunoreactivity was significantly correlated to tumor cell proliferation, tumor vascular density, and nonmalignant epithelial pEGFR immunoreactivity. Patients with metastases had significantly higher immunoreactivity for tumor and nonmalignant epithelial pEGFR compared with patients without metastases. CONCLUSIONS: Low pEGFR immunoreactivity is associated with the favorable prognosis in prostate cancer patients and may provide information about which patients with Gleason score 6 and 7 tumors that will survive their disease even without treatment. Changes in the nonmalignant tissue adjacent to prostate tumors give prognostic information.
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