US study casts doubt on virus link to fatigue syndrome
Saturday 24 September 2011
A new US study heaps further doubt on the theory that Chronic Fatigue Syndrome is linked to the XMRV retrovirus by questioning the results of a well-known October 2009 report.
That report, which found that patients with CFS were often infected with the virus, was published in the prestigious journal Science and attracted a lot of attention, but subsequent studies have failed to replicate the results.
The new study, published Thursday and based on the findings of researchers at nine different laboratories, including the authors of the original report, found that the lab tests used to detect the retrovirus were unreliable.
The researchers analyzed blood samples from 15 people previously reported to be infected with XMRV or a related virus and 15 healthy individuals.
The samples were "blind-coded," meaning the labs did not know which samples they were testing.
"Only the two laboratories associated with the original report detected the virus," said a summary of the new study published by Science.
"In these two labs, the virus was found in healthy controls as often as in the CFS patients, and tests on replicate samples... produced inconsistent results," raising major doubts about the original report.
The US Centers for Disease Control and Prevention describe CFS as a "devastating and complex disorder characterized by overwhelming fatigue that is not improved by bed rest and that may be worsened by physical or mental activity."
Life & Style blogs
Caitlyn Jenner: Twitter bot created to remind social media users to use the right pronouns
Charlie Charlie Challenge: everyone on the internet thinks it’s a marketing stunt, but it probably isn’t
Not brushing your teeth can lead to dementia and heart disease
Insomnia could be cured with one simple therapy session, new study claims
What do the emojis on Snapchat mean?
- 1 California man brutally beat 82-year-old Sikh grandfather he mistook for 'one of those people'
- 2 Gay teenager 'forced to have sex with his own mother' to 'cure' his homosexuality, campaigners in India say
- 3 Charles Kennedy 'had better judgement drunk than many sober politicians' says Ian Hislop
- 5 We have six months to save the world, says leading economist
£19000 - £23000 per annum: Recruitment Genius: This is a fantastic opportunity...
£13000 per annum: Recruitment Genius: This Pension Specialist based in Rochest...
£35000 - £45000 per annum: Recruitment Genius: This company is a solutions / s...
£18000 - £45000 per annum: Recruitment Genius: A Sales Executive is required t...