Eleanor R. Gray1*, Jeremy A. Garson1, Judith Breuer1, Simon Edwards2, Paul Kellam1,3, Deenan Pillay1, Greg J. Towers1:
1 Department of Infection and Immunity, University College London, London, United Kingdom, 2 Mortimer Market Centre, Camden Primary Care Trust, London, United Kingdom, 3 Pathogen Genetics, Wellcome Trust Sanger Institute, Cambridge, United Kingdom
Several studies have implicated a recently discovered gammaretrovirus, XMRV (Xenotropic murine leukaemia virus-related virus), in chronic fatigue syndrome and prostate cancer, though whether as causative agent or opportunistic infection is unclear. It has also been suggested that the virus can be found circulating amongst the general population. The discovery has been controversial, with conflicting results from attempts to reproduce the original studies.
We extracted peripheral blood DNA from a cohort of 540 HIV-1-positive patients (approximately 20% of whom have never been on anti-retroviral treatment) and determined the presence of XMRV and related viruses using TaqMan PCR. While we were able to amplify as few as 5 copies of positive control DNA, we did not find any positive samples in the patient cohort.
In view of these negative findings in this highly susceptible group, we conclude that it is unlikely that XMRV or related viruses are circulating at a significant level, if at all, in HIV-1-positive patients in London or in the general population.
Received: November 15, 2010; Accepted: February 21, 2011; Published: March 23, 2011
Funding: This work was undertaken at UCLH/UCL, which received a proportion of funding from the Department of Health's NIHR Biomedical Research Centres funding scheme. Additional funding was provided by a Wellcome Trust Senior Fellowship WT090940 to GJT and the Medical Research Council. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Competing interests: The authors have declared that no competing interests exist.
* E-mail: email@example.com
My Note: typical for Greg Towers: "In view of these negative findings in this highly susceptible group, we conclude that it is unlikely that XMRV or related viruses are circulating at a significant level, if at all, in HIV-1-positive patients in London or in the general population."
"or in the general population": was the general population tested or in any way part of this study? NO, so more denial nonsense ...
PS: again NO culture done ...