XMRV and Prostate Cancer: A Study of Infection Rates
Author Information
Author(s): William M. Switzer, Hongwei Zheng, Hao Qiang Tang, Shaohua Heneine
Primary Institution: Centers for Disease Control and Prevention
Hypothesis
Is there an association between xenotropic murine leukemia virus-related virus (XMRV) and prostate cancer?
Conclusion
The study found a very low prevalence of XMRV in prostate cancer patients, suggesting no association with the disease.
Supporting Evidence
- Only 3 out of 162 prostate cancer patients tested positive for XMRV.
- All patients were negative for antibodies to XMRV/MLV.
- Phylogenetic analysis confirmed the presence of distinct XMRV strains in the few positive cases.
Takeaway
The researchers looked for a virus called XMRV in men with prostate cancer and found it in only a few, which means it likely doesn't cause the cancer.
Methodology
The study used PCR and Western blot assays to test prostate tissue DNA and plasma samples for XMRV and related viruses.
Limitations
The study had a low prevalence of XMRV, limiting the ability to draw strong conclusions about its association with prostate cancer.
Participant Demographics
The participants were 162 U.S. prostate cancer patients, with an average age of 57 years, predominantly Caucasian (86%).
Digital Object Identifier (DOI)
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