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Article: The Singh XMRV Study Strikes Out
- Thread starter Phoenix Rising Team
- Start date
Thanks - the end of 2011 - that's not so bad - seven months away.....
That's a great comment on this and other 0/0 studies. It sounds like Ian Lipkin wants a real replication study completed too. I can't wait to see others comment, some of the ones involved in the original studies and the other ones since. Please release the good, positive studies too.
We can't keep asking the WPI to do things and set the bar higher and higher each time.
They are only a small organisation with limited funds.
Dr Mikovits has taken this seriously. She has addressed the contamination issue over and over again. Each time something new comes up she addresses it. It's not the responsibility of Dr Mikovits or the WPI to keep addressing each spurious comment rival researchers some up with.
Every time the WPI are asked to deal with a comment, they lose time from their other work.
This needs to stop happening. If Coffin and colleagues think that contamination was responsible for the results in the original Science paper then they need to come up with plausible arguments and transparent science that can be publicly examined. Until then it is just hot air.
I don't want the WPI to keep spending money and resources on the imagined failings of their results. They don't have the resources to hold the hand of every scientist who tries and fails to find XMRV and who doesn't even bother to try a replication. It's not their job and I as someone who has donated money don't want it spent on this.
We are still waiting for one scientist to replicate the findings. This hasn't happened.
They are only a small organisation with limited funds.
Dr Mikovits has taken this seriously. She has addressed the contamination issue over and over again. Each time something new comes up she addresses it. It's not the responsibility of Dr Mikovits or the WPI to keep addressing each spurious comment rival researchers some up with.
Every time the WPI are asked to deal with a comment, they lose time from their other work.
This needs to stop happening. If Coffin and colleagues think that contamination was responsible for the results in the original Science paper then they need to come up with plausible arguments and transparent science that can be publicly examined. Until then it is just hot air.
I don't want the WPI to keep spending money and resources on the imagined failings of their results. They don't have the resources to hold the hand of every scientist who tries and fails to find XMRV and who doesn't even bother to try a replication. It's not their job and I as someone who has donated money don't want it spent on this.
We are still waiting for one scientist to replicate the findings. This hasn't happened.
I'm not saying you're wrong, but it sounds as if you think openness and being in the majority equals qualification to speak on the issue. His qualifications should speak for themselves, and history shows that majority should have nothing to do with scientific accuracy.
The majority may not have been able to find XMRV, but plenty of researchers have found MLVs, including Singh. Not to mention, Singh also found XMRV in prostate studies, so she at least has been able to detect XMRV, period. Even she admitted to Mindy Kitei that her inability to find XMRV at all in this study may have to do with the different assays used. In addition, I thought WPI publicly announced they broadened their serology test to capture other MLVs in addition to XMRV. So with all that said, shouldn't independent researchers that have found either XMRV or other MLVs be counseled on the serology test's cross reactivity with non-MLV viruses?
I wouldn't be so concerned if Satterfield were waxing about cross reactivity in the general sense, but if he's being used as an expert opinion to refute one of the few remaining lynchpins to the credibility of WPI's study, then in my opinion we would want to be more prudent.
So again, I think the question, "Has Satterfield been able to find any MLVs... period?" is indeed relevant.
Today I'm feeling grateful that the authors of this study put so much time and effort and care into it. I'm grateful that they are taking CFS seriously enough to study it.
Whether XMRV turns out to be related to CFS or not, I'm grateful to Judy Mikovits for her courage in proposing this idea. It was a bold move. I appreciate that she is working so hard to try to solve the puzzle of our disease.
I'm grateful to Ian Lipkin and Alter and Lo and Ruscetti and all the other scientists who are looking into physical causes of CFS.
I hope we are now out of the dark ages of CFS and are permanently in an era of improved research and attention and funding and effort to help us.
No matter what happens with XMRV, I still believe that the WPI is one of our best hopes for finding solutions.
Whether XMRV turns out to be related to CFS or not, I'm grateful to Judy Mikovits for her courage in proposing this idea. It was a bold move. I appreciate that she is working so hard to try to solve the puzzle of our disease.
I'm grateful to Ian Lipkin and Alter and Lo and Ruscetti and all the other scientists who are looking into physical causes of CFS.
I hope we are now out of the dark ages of CFS and are permanently in an era of improved research and attention and funding and effort to help us.
No matter what happens with XMRV, I still believe that the WPI is one of our best hopes for finding solutions.
If De Meirleir has been able to conduct stomach biopsies on so many patients, why can't we collectively do that? The emory study already showed that XMRV is more likely to be in tissue in the long run. Singh said that looking at tissue is no trivial matter and there's the matter of where to start looking, but in this case, someone has already initiated! Can't researchers in the US do a replication study?
It could be a small sample size--even 10 patients 10 controls. Use the same assay that KDM is using.
Is it really that expensive? Is it really that hard? As for Singh's suggestion that there's no use doing a tissue study if the initial study was blood...to a layman that logic doesn't make any sense to me whatsoever. Why can't we do both?
It could be a small sample size--even 10 patients 10 controls. Use the same assay that KDM is using.
Is it really that expensive? Is it really that hard? As for Singh's suggestion that there's no use doing a tissue study if the initial study was blood...to a layman that logic doesn't make any sense to me whatsoever. Why can't we do both?
"XMRV is not associated with ME, comprehensive study finds." This headline of the U of Utah press release is what 99.5% of people will come away with when they see this headline and story in the news. More warping of the science.
I'm not saying Singh had to look at it in tissue in this study if she hadn't planned to do that, but how can she say that 'XMRV is not associated with CFS" just based on the blood? That seems disingenuous to me. She should have just said she couldn't find it in ME blood. It's possible it's in tissues and not blood.
In the monkey xmrv study, the blood of the monkeys who were infected with xmrv didn't always test positive for XMRV, but when they did autopsies they found the organs had a good deal of XMRV. Similarly, when Prof. Singh tested prostate tissue, controls were 4% positive; but when she only tested blood, in the present study, she found 0%. So how can she say flatly in the study and the title of the press release that XMRV is not associated with ME? I think the most she can say is that she didn't find xmrv in the blood of patients or controls.
Apparently, one of WPI's positives they sent to Singh was one they used to grow a cell-line/strain from and they also took an electronmicrograph of XMRV coming out of a cell in this person's blood (in addition to finding it positive with some of the four or five tests WPI used). So it's possible that that sample is in fact positive and Singh couldn't find the XMRV. So, again, it's disingenuous to say "XMRV is not associated with ME" when we don't know that for sure. All we know for sure from her study is that she did not detect XMRV in any of the samples.
I'm not saying Singh had to look at it in tissue in this study if she hadn't planned to do that, but how can she say that 'XMRV is not associated with CFS" just based on the blood? That seems disingenuous to me. She should have just said she couldn't find it in ME blood. It's possible it's in tissues and not blood.
In the monkey xmrv study, the blood of the monkeys who were infected with xmrv didn't always test positive for XMRV, but when they did autopsies they found the organs had a good deal of XMRV. Similarly, when Prof. Singh tested prostate tissue, controls were 4% positive; but when she only tested blood, in the present study, she found 0%. So how can she say flatly in the study and the title of the press release that XMRV is not associated with ME? I think the most she can say is that she didn't find xmrv in the blood of patients or controls.
Apparently, one of WPI's positives they sent to Singh was one they used to grow a cell-line/strain from and they also took an electronmicrograph of XMRV coming out of a cell in this person's blood (in addition to finding it positive with some of the four or five tests WPI used). So it's possible that that sample is in fact positive and Singh couldn't find the XMRV. So, again, it's disingenuous to say "XMRV is not associated with ME" when we don't know that for sure. All we know for sure from her study is that she did not detect XMRV in any of the samples.
Thanks Forbearance, very nicely and succinctly reflects my sentiments as well.
"No XMRV association found in blood of ME/CFS patinets"
Justin, good points.
"XMRV is not associated with ME" is not the same thing as
"No XMRV association found in blood of ME/CFS patinets."
Singh's ME/CFS blood study and her conclusions about XMRV in tissue are inconsistent (but the blood study does not support the Lombardi results) and together they raise more questions about finding XMRV in blood and provide little definitive information about XMRV in ME/CFS patients.
No conspiracy necessary but I do not think you can draw the conclusion that "XMRV is not related to ME/CFS" from her data.
Justin, good points.
"XMRV is not associated with ME" is not the same thing as
"No XMRV association found in blood of ME/CFS patinets."
- Singh found contamination in her analysis.
- Singh was not able to replicate the Lombardi findings (I think she tried hard to do so).
- Singh continues to have confidence that XMRV/MLVs is a human pathogen that she can find in tissue (prostate studies).
- Singh did not look for XMRV/MLVs in tissue of ME/CFS patients.
Singh's ME/CFS blood study and her conclusions about XMRV in tissue are inconsistent (but the blood study does not support the Lombardi results) and together they raise more questions about finding XMRV in blood and provide little definitive information about XMRV in ME/CFS patients.
No conspiracy necessary but I do not think you can draw the conclusion that "XMRV is not related to ME/CFS" from her data.
I think that headline is accurate - based on what they said in the study. They actually didn't say XMRV is not associated with CFS; they said 'they feel that' XMRV is not associated with CFS.
I don't think any researchers are looking at tissue samples of people with ME/CFS and I would be surprised if they if f XMRV in the blood does not turn out to be associated with CFS. If it actually turns to to be true the link is gone; there would be no logical reason to look for XMRV in the tissues in CFS than in diabetes or asthma or whatever. I think you have to prove the blood link first.
Logically you're correct - you cannot say XMRV is not associated with CFS until you look at all the tissues - but you can say that about every pathogen. The question is whether its an important question? I don't think it is.
There's no reason to think XMRV is hiding away, undetectable in the blood but still virulent in the tissues of people with CFS. Remember the WPI was rather easily able to detect XMRV in the blood of ME/CFS patients in the Oct. study and has been able to do that since then - as has VIP Dx labs. They find it in the blood ALL THE TIME.
It's not as if XMRV somehow appeared in the blood of that first set of patients (and in all the people who have tested positive since then) by the WPI and then disappeared into the tissues of every other person with ME/CFS who tested negative in the other studies.
Nor is the WPI saying you have to search for it in the tissues - they are saying that we can find it in the blood, we find it in the blood every day and you - the negative studies are doing something wrong.
It'll be interesting to see what their response in the Journal is.
I think we're getting two issues muddled together.
There is the matter of replicating WPI's study, and then there's the matter of confirming whether XMRV plays a role in CFS. If the WPI is wrong and found an alarming rate of false positives (for the sake of argument), then why isn't it a worthwhile effort to look for it in biopsies? Based on the Emory study logic, isn't it more likely to be found there? Based on Singh's study finding it in both cancer patients and 4% of controls in prostate cancer tissue, don't we already have an assay that can be deployed on other types of tissue?
Your point about being not being able to confirm association before looking at all tissues for all pathogens is true, but it's also irrelevant since there is a precedence for it being found in biopsy samples by KDM. I just hope he publishes the results of the biopsies soon, because we all know that without doing so, there will be no effort to "replicate" what isn't official.
Someone emailed me to ask where CAA said "XMRV is not related to ME, case closed" as I put it. They didn't literally say that in 'the iteration of X' (whatever that's supposed to mean). It was just my summarizing of the tone I felt they were strongly trying to put across.
It seems to me they are deliberately not saying those words, so they can't be accused of saying that, while saying lots of "wrapping it all up and moving on" type talk to give the feeling that it's all done and we need to move on now. like someone got fired (WPI and XMRV) and the boss is saying "well they failed, but we learned a lot from their mistakes and we wish them well in their leaving to pursue other opportunities."
That may seem like reading too much into it to some, but I really feel that way, so I'm saying it.
It seems to me they are deliberately not saying those words, so they can't be accused of saying that, while saying lots of "wrapping it all up and moving on" type talk to give the feeling that it's all done and we need to move on now. like someone got fired (WPI and XMRV) and the boss is saying "well they failed, but we learned a lot from their mistakes and we wish them well in their leaving to pursue other opportunities."
That may seem like reading too much into it to some, but I really feel that way, so I'm saying it.
I totally agree!! Even if WPI is getting all false positives in the blood (ie Lombardi et al. was wrong), that does NOT mean that we know whether ME is or is not associated with XMRV since the monkey study and Singh's own Prostate Cancer study suggests xmrv could be in the tissues and not in the blood!
How is the headline "XMRV is not associated with CFS, comprehensive study finds" accurate "based on what they said in the study" if in the study they "didn't say 'XMRV is not associated with CFS'..."?
Logically if it's found in prostate cancer tissues then you should look for it in diseases that are similar to prostate cancer first - maybe some other type of cancer or people with prostitus (however you spell it).
If KDM has found it in other tissues then that's something else entirely and I hope he can get it published. The Singh autopsy study will tell us alot because she looked for XMRV in all sorts of dead people and she should be able to tell us if appears to be associated with disease. If it shows up in the kidneys of people who died of heart disease and never had kidney disease then it's probably just a bystander. On the other hand if it shows up in the neurons of Alzheimers patients - that's another story.
In the study they did say they 'felt' XMRV is not associated with CFS, as I believe I quoted..therefore the headline fits the study.
I don't think words about intuition and emotion ("feel") have any place in a scientific study.