Friday, 13 November 2009

ME/CFS, XMRV, XAND, etc

Many of you will already know this, but for those that don’t, in October there was a tremendous hullabaloo in the ME/CFS world, and there still is. The best kind of hullabaloo.

This is because of research conducted by the Whittemore Peterson Institute and published in the journal ‘Science’: Detection of an Infectious Retrovirus, XMRV, in Blood Cells of Patients with Chronic Fatigue Syndrome.

The WPI studies neuro-immune disease, has reputable researchers on board, and has achieved amazing things in a short time. Their study found a potential link between ME/CFS and a retrovirus called XMRV. As the Director of Research for the WPI, Dr Judy Mikovits said in the press release:

“We now have evidence that a retrovirus named XMRV is frequently present in the blood of patients with CFS. This discovery could be a major step in the discovery of vital treatment options for millions of patients."

Although it’s not yet clear if it’s an issue of causation or correlation (an important differentiation), many of the well-regarded names in the ME/CFS world are making big calls about the importance of the discovery. I’ve never, ever seen a response like this, and that in itself is exciting. It’s also garnered plenty of attention in the mainstream media.

There is a Q&A on the Whittemore Peterson site and I recommend reading it so you get the info straight from the horse’s mouth.

Hillary Johnson has also written about it in her inimitable style in an excellent article, ‘A Case of Chronic Denial’ in the New York Times. She is also reporting on XMRV on her fabulous blog.

As for the WPI itself, there’s a recent article by Denise Grady in the New York Times, ‘A Big Splash from an Upstart Medical Centre’, and a 2008 article by Cort Johnson describes how the WPI got off the ground.

If you’re interested in further reading, there are many links in my shared google reader items tagged with XMRV. Scroll through and see what catches your eye, or subscribe to the XMRV feed. There is an overwhelming amount of discussion out there. I’ve kept to the basics in this post, but I’ll be adding fresh links from the spectrum of opinion to that list of shared items as I come across them. All the shared items automatically pop up in the sidebar on the right.

Here are some interesting quotes on the matter:

Dr David Bell, in the Lyndonville News:

“But most of all I want to predict where this is going. I am using the "force" here. I have no special or inside information from the Whittemore-Peterson Institute. They have to be cautious and circumspect. I don't. I am an old man sitting on my porch rocking chair, desperately trying to retire; I will say what I think is true.

“…the really good news is that if XMRV is the puppet-master of ME/CFS, it conceivably could be very treatable. Theoretically, more treatable than HIV. Lots of work to do.

The politics of ME/CFS are daunting. But now may be the time to forge ahead and get something done. Congratulations again to the authors and the Whittemores. It is time for the CDC and the NIH to be constructive and do some science.

“…I think XMRV is going to turn out to be the "cause" of ME/CFS, and I think treatments will be available from every family physician in America who accepts Medicare. The question is whether this occurs next year or twenty years from now.”

Dr Nancy Klimas:

“It’s important not to take these new findings about the XMRV virus as anything more than an exciting new development. We need confirmatory studies, then studies to see if the virus is contributing to the cause of illness persistence and symptoms. The good news is that if XMRV is linked to CFS, there are many antiviral drugs that have already been safety tested in HIV. that may inhibit viral replication. So those studies could be designed very rapidly.”

“My HIV patients for the most part are hale and hearty thanks to three decades of intense and excellent research and billions of dollars invested. Many of my CFS patients, on the other hand, are terribly ill and unable to work or participate in the care of their families.

I split my clinical time between the two illnesses, and I can tell you if I had to choose between the two illnesses (in 2009) I would rather have HIV. But CFS, which impacts a million people in the United States alone, has had a small fraction of the research dollars directed towards it.”

Dr Dan Peterson:

Patients with ME/CFS (XAND) deal with a myriad of health issues as their quality of life declines. I’m excited about the possibility of providing patients who are positive for XMRV a definitive diagnosis, and hopefully very soon, a range of effective treatment options.

“X Associated Neuro-immune Disease, or XAND - a new disease entity encompassing ME/CFS - will require additional research funding to find effective treatments.”

Dr Paul Cheney:

“The finding of antibody or active virus in 95% of CFS and 4% of controls is a result that argues for causality, in my opinion, especially with the associated RNAse-L corruption and NK functional impairment that might predict such an infection. This novel retrovirus could easily shift the redox state just like HIV as has been published in (2001) and (1995) and induce all manner of associated pathogens as seen in CFS. A redox shift could ultimately corrupt the gut ecology and create P450 decoupling based on NADPH depletion observed in CFS and lead to environmental illness as well. Time will tell but I think Dr. Mikovits is right to suspect causality.”

Dr Byron Hyde:

“Dr Peterson, probably one of the nicest and learned colleagues in the field of CFS, recently from the brand new, just opened, multi-million dollar Whittemore Peterson Institute in Reno Nevada, announced overwhelming evidence that the cause of M.E. or CFS, is XMRV retrovirus. The XMRV mouse retrovirus occurred in 68% of the CFS patient’s blood samples and only 4% of non-CFS patients. Pretty convincing!

This retrovirus theory comes with a history: It was first raised as a possibility by the gay community at a symposium I attended in San Francisco in 1987 and again by Florida based researcher Dr DeFreitas in the early 1990s. Dr DeFreitas discussed this retrovirus theory in our textbook, ‘The Clinical and Scientific Basis of ME/CFS’.

At the very least, this retrovirus discovery is great free advertising for the Whittemore Peterson Institute. It will possibly bring them in many millions of dollars from, patients willing to be separated from their assets, generous charities and governments before the retrovirus theory is once again thrown into the garbage bin. I should add that incubation period of XMRV is up to 21 days which makes it impossible to cause an epidemic illness. One theory to explain this “new” finding is that XMRV is a mouse virus and since many research institutes have tens of thousands of mice, cross contamination of specimens are inevitable.”

And now for some video interviews. Here's parts 1 and 2 of an interview with Judy Mikovits and Annette Whittemore. I just love how genuinely thrilled the interviewer is.



And Dr Nancy Klimas:


There’s much I’d like to say on this, and I will, but I’ll leave it there for now.

Until next time, comrades.

10 comments:

  1. That's an excellent round-up; must have been a lot of labor to put it all together. I highly recommend this video as well: http://www.youtube.com/watch?v=4p6kcBdSsAc

    It isn't about XMRV directly but the institutional and governmental (in US) obstacles to progress on ME/CFS.

    I've been wondering what you think of the XMRV news, and I'll be curious to hear more of that when you're up to it.

    I hope you are happy in your new home!
    ReplyDelete
  2. Hi,

    really interesting...I hadn't heard about this. I have a type of CFS that doctors aren't sure is CFS at all, they don't really know what it is...so I'd be surprised if I fit into this category but will look it up anyway.

    Thanks!

    Emma
    ReplyDelete
  3. I'm not sick, but I know someone who is, and I follow this kind of news. The day after they made the grand announcement about XMRV, two people with no connection to ME/CFS except me asked if I'd heard about it.

    That's never happened before.
    ReplyDelete
  4. Hi,
    I'm also doing my best to be optimistic about these findings, however I've just read Dr Hyde's response to XMRV : (http://www.nightingale.ca/documents/GoteborgConference.pdf)
    Unfortunately he doesn't explain what he thinks the connection with XMRV is - and clearly there must be some connection.
    I feel almost as confused as ever!
    ReplyDelete
  5. Thanks for that other link Priscilla, I added it to my shared items as well. I have actually been watching the CFSAC footage recently...in small doses though, because it makes me hopping mad.

    Hi Emma, thanks for dropping by. I'm really sorry to hear about your health. I hope you get a clear diagnosis soon one way or the other - it must be enormously frustrating not to know what's going on. Thinking of you.

    That's amazing, cinderkeys! I'm so pleased to hear it.

    Nicky, thanks for posting that link, I just read Dr Hyde's remarks this evening too, and was adding to this post for balance. I know what you mean. In general I think very highly of his work. I think he's being a bit black and white though. In the context of his speech, he implies that various things (XMRV, HHV 6 & 7, Chia's enterovirus theory) have been touted as absolute and definite causes, and I don't think that's ever been the case, they're just a series of hypotheses - which presumably is what we'll have until someone gets it right. Obviously some people strongly suspect causality, but it hasn't been proven, and everyone is quick to point out that the study hasn't been replicated yet. Food for thought, anyway, and it's good to hear a variety of opinions...if not confusing!
    ReplyDelete
  6. Hi there,
    Yes, I've heard about it, mainly through Facebook... it was big news indeed, although I did not look into it myself thoroughly. Thank you for sharing !
    I am so curious whether one day they will find a good and meaningful "classification" of various subgroups and degrees of illness and impact on life...13 years of full-blown ME slowly improving... Wish you well with your health too !
    Warm regards,
    Joni
    ReplyDelete
  7. Thanks for doing all this, Greenwords. I find it very difficult to keep up with all that's going on.
    ReplyDelete
  8. Thanks for this summary! It included videos and quotes I'd not seen/heard before.
    ReplyDelete
  9. I don't see why a "21 day incubation period would prevent XMRV from creating an epidemic" (to quote Dr Byron Hyde above).

    Incubation periods can run from half a day to sometimes several months, but this time surely cannot have much bearing on whether a microbe becomes an epidemic in a community. Factors that do have significant bearing on whether a microbe becomes an epidemic include: the microbe's transmission rate (how easy the microbe passes between people), and the length of the disease prodrome, which sets the widow of opportunity for transmission (for example, the prodrome = a few weeks for poliovirus, and indefinitely for HIV).
    ReplyDelete
  10. Hi Joni, it sure will be interesting to see what the future brings as far as research. Glad to hear of your slow improvement. Long may it continue.

    I know what you mean Signs, it can be hard to keep up with what's going on.

    Alyson, thanks for stopping by, I see you've been having a rough time lately, hope things look up for you soon.

    Hi hip, I have reservations about some of Byron Hyde's comments, I too thought the remarks about the incubation period were bizarre. Not to mention the mice theory.
    ReplyDelete

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