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MDS Myelodysplastic syndromes

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  #1  
Old Tue Dec 20, 2011, 11:41 PM
Donna E Donna E is offline
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Is there a resource trying to find the causes of MDS?

My father had MDS and I was wondering if there is a database anywhere where we are collecting data on this illness. I used this site when my Dad was sick to get support and answers but I really wish we could be more proactive to find out what is causing this so we can prevent it . . .
Is anyone collecting data on MDS patients to see if there are any common links to look into?
I was just wondering if this exists . . .

Thanks -- Donna
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  #2  
Old Wed Dec 21, 2011, 09:47 AM
Neil Cuadra Neil Cuadra is offline
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Donna,

I don't think there is a central repository of MDS information related to finding causes. Individual institutions may have made some efforts to analyze case data, but there's a fundamental problem blocking such research: controlled experiments can't be performed. Consider what happens if a researcher finds that diagnoses of MDS statistically correlate with exposure to Agent Orange, or with employment at oil refineries. They might sound an alarm about chemical exposures but they couldn't do the usual type of controlled study to prove that Agent Orange causes MDS. It wouldn't be ethical to expose 50 patients to Agent Orange and 50 patients to a placebo to see if patients in the first group get MDS more often. So suspected causal agents can be identified much more easily than the connections can be proven.

Still, when suspected causes like benzene exposure are identified, very strong statistically evidence leads to common sense measures to avoid such exposures in the future. It's too bad that one known cause -- radiation and chemotherapy for prior cancer -- often can't be avoided.
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Old Wed Dec 21, 2011, 10:12 AM
triumphe64 triumphe64 is offline
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H. R. 640 is a bill introduced in Congress to establish a registry to study all of the bone marrow failure diseases. You can support it by asking your Representative to cosponsor this bill.

http://www.votervoice.net/Core/core...._CULTURE=en-us
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  #4  
Old Wed Dec 21, 2011, 10:08 PM
Greg H Greg H is offline
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Hey Donna!

There are a variety of epidemiological studies out there that examine statistically the relationship between MDS and various exposures, professions, and aspects of lifestyle.

Many studies point to a link with benzene and other chemicals.

This 2009 US study finds that being overweight and smoking are risk factors.

This 2001 French study suggests one might want to consider some line of work other than being a technical sales rep. It's not clear if the salesmen were at greater risk because they spent a lot of time in factories around chemicals or spent so much time wining and dining their sales prospects that the ate, drank,and smoked too much.

As Neil suggests, these kind of statistical studies are really all we are likely to get, since we can't go experimenting on folks to see if we can give them MDS.

I think there are a couple of other problems, as well. MDS is a convenient label, but any definition of "myelodysplastic syndromes" begins with the phrase "a set of related disorders." In other words, there's more than one type of MDS, those types might not even be that closely related, and so they might not be caused by the same thing. That complicates the statistician's task of finding a cause. You might have a version of MDS caused by an autoimmune issue; mine might be caused by an inherited genetic mutation; and Joe's might be the result of a lifetime of smoking (or selling industrial machinery to Frenchmen).

The other problem is that a lot of the types of MDS, like other cancers, seem to be about genetic mutations. And lots and lots of things, from too much sun to too many beers, can make human cells mutate. We are veritable mutation machines. That's how we got these opposable thumbs, why we walk upright, and how we got these big brains that can ponder questions about why we get MDS.

The way we tend to think about disease is that it's caused by an outside invader -- the way that an unfriendly microbe causes smallpox. But most cancers aren't invaders. They are our very own cells, gone bad, which is what makes the disease so hard to treat.

The ability of our cells to mutate -- and to capitalize on useful mutations -- is what made us who we are. It's a great gift. But it has a dark side, and that dark side is what we call "cancer."

If you look at it that way, finding a "cause" for MDS or other cancers is a very difficult enterprise, because the mysterious cause of cancer is all wrapped up in the mystery of life itself.

Take care!

Greg
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  #5  
Old Thu Dec 22, 2011, 12:54 PM
Lbrown Lbrown is offline
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Interesting that you mention smoking. There have been articles lately about bacteria in tobacco that could be a big cause of smoking-related diseases. Here is one I just found:

http://www.scientificamerican.com/ar...ction-pathogen

Deb
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