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BACKGROUND Whether the genomic rearrangement transmembrane protease, serine 2 (TMPRSS2):v-ets erythroblastosis virus E26 oncogene homolog (ERG) has prognostic value in prostate cancer is unclear. METHODS Among men with prostate cancer in the prospective Physicians' Health and Health Professionals Follow-Up Studies, we identified rearrangement status by(More)
Prostate cancer is the most common cancer among men in Western countries but the exact pathogenic mechanism of the disease is still largely unknown. An infectious etiology and infection-induced inflammation has been suggested to play a role in prostate carcinogenesis and Propionibacterium acnes has been reported as the most prevalent microorganism in(More)
Gleason grade is universally used for pathologic scoring of the differentiation of prostate cancer. However, it is unknown whether prostate tumors arise well differentiated and then progress to less differentiated forms or if Gleason grade is an early and largely unchanging feature. Prostate-specific antigen (PSA) screening has reduced the proportion of(More)
BACKGROUND Coffee contains many biologically active compounds, including caffeine and phenolic acids, that have potent antioxidant activity and can affect glucose metabolism and sex hormone levels. Because of these biological activities, coffee may be associated with a reduced risk of prostate cancer. METHODS We conducted a prospective analysis of 47,911(More)
BACKGROUND A growing proportion of men diagnosed with localized prostate cancer detected through prostate-specific antigen testing are dying from causes other than prostate cancer. Temporal trends in specific causes of death among prostate cancer patients have not been well described. METHODS We analyzed causes of death among all incident prostate cancer(More)
BACKGROUND Although positive associations have consistently been reported between sleep disruption and breast cancer, less is known about its potential role in prostate cancer. METHODS Within the prospective AGES-Reykjavik cohort study, we followed 2,102 men recruited in 2002-2006 until the end of 2009. Participants answered questions on sleep disruption.(More)
Circadian genes may be involved in regulating cancer-related pathways, including cell proliferation, DNA damage response, and apoptosis. We aimed to assess the role of genetic variation in core circadian rhythm genes with the risk of fatal prostate cancer and first morning void urinary 6-sulfatoxymelatonin levels. We used unconditional logistic regression(More)
Author manuscripts have been peer reviewed and accepted for publication but have not yet been edited. Author manuscripts have been peer reviewed and accepted for publication but have not yet been edited. SPINK1 over-expression has been described in prostate cancer and is linked with poor prognosis in many cancers. The objective of this study was to(More)
BACKGROUND TMPRSS2:ERG is a hormonally regulated gene fusion present in about half of prostate tumors. We investigated whether obesity, which deregulates several hormonal pathways, interacts with TMPRSS2:ERG to impact prostate cancer outcomes. METHODS The study included 1243 participants in the prospective Physicians' Health Study and Health Professionals(More)
Observational studies report conflicting results on the association between metformin exposure and prostate cancer outcomes. This meta-analysis summarizes studies reporting overall survival, prostate cancer-specific mortality, and biochemical recurrence. PubMed and Embase were systematically reviewed to identify studies investigating the association between(More)