TOP 100 SCIENCE SITES
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| Don't blame fast food: Mummies had heart disease ORLANDO, Fla. (AP) -- You can't blame this one on McDonald's: Researchers have found signs of heart disease in 3,500-year-old mummies.... hosted.ap.org |
Warming's impacts sped up, worsened since Kyoto Since the 1997 international accord to fight global warming, climate change has worsened and accelerated beyond some of the grimmest of warnings made back then. rssfeeds.usatoday.com |
Salazar calls for high flows into Colorado River FLAGSTAFF, Ariz. (AP) -- Interior Secretary Ken Salazar is calling for more manmade floods to be released from the Glen Canyon Dam into the Colorado River.... hosted.ap.org |
Doubt cast on chronic fatigue virus claim UK study fails to find proof of headline-grabbing American study into test for ME/CFSSerious doubt has been cast on the theory that made headlines around the world last October that chronic fatigue syndrome, or ME, is caused by a new retrovirus.Scientists at Imperial and King's universities in London have attempted to replicate work carried out in the US and published in the journal Science last autumn. But they found not one of the 186 patients they studied had a trace of the novel virus, called XMRV, in their blood samples.The theory, which made headlines around the world last October, gave hope to many. About three in every 1,000 people, possibly more, suffer from chronic fatigue syndrome (CFS), formerly known as myalgic encephalomyelitis (ME), which is a condition described one of the authors of the paper, Dr Anthony Cleare, reader in psychiatric neuroendocrinology at King's, as serious and debilitating and extremely frustrating for sufferers who do not know its cause.The study in Science, by Vincent Lombardi and colleagues at a small private pathology laboratory in Reno, Nevada, sent many patients hurrying to doctors for tests and antiretroviral drugs.Lombardi and his team reported that they had found the virus XMRV in 67% of the CFS patients they tested. Later they said they had found it in 95% of patients. Lombardi has devised and sells a test for the virus in north America.Scientists around the world embarked on their own tests, and Dr Cleare and his colleagues are the first to publish results. "If this research is replicated, it is potentially a huge breakthrough in understanding this condition," he said.King's College hospital runs a specialised CFS/ME clinic. The researchers selected blood samples from 186 patients who were, they said, typical of those who attend. They had suffered for years, were very disabled by the disease and more than 90% said their illness definitely or probably started after a viral infection.They sent the samples to a team at Imperial's retrovirology labs. Professor Myra McClure, from the division of medicine at Imperial College London and one of the authors of the study published today by PloS One (Public Library of Science), said: "Our research was carried out under rigorous conditions. We used very sensitive testing methods to look for the virus. If it had been there, we would have found it."The lab in which we carried out the analysis had never housed any of the murine leukaemia viruses related to XMRV, and we took great care to ensure there was no contamination. We are confident our results show there is no link between XMRV and CFS, at least in the UK." The authors say there is no evidence to justify testing people with CFS for the virus or putting them on drug treatment.Chronic fatigue syndromeHealthImperial College LondonKing's College LondonMicrobiologyMedical researchControversies in scienceSarah Boseleyguardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds guardian.co.uk |
Hunting Fossil Viruses in Human DNA A virus infected our monkey-like ancestors 40 million years ago, and its genes have been passed down ever since. feeds.nytimes.com |