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New MRI Technique Can Detect Diabetes

MonkeyBoy writes "Researchers at Joslin Diabetes Center and Massachusetts General Hospital have unveiled a new magnetic nanoparticle based magnetic resonance imaging technique that can detect diabetes even before clinical symptoms. In mice they were able to take non-invasive images of pancreatic inflammation and its reversal for type 1 diabetes. Full article is available as a PDF from Pubmedcentral. Will we see rapid translation of these pre-clinical observations to prediction and/or stratification of type 1 diabetes and treatment of individuals with the disease? This would provide a crucially needed early predictor of response to therapy. As an added bonus it looks like the analysis was done on a Linux box too."

5 of 183 comments (clear)

  1. All I know is... by yellowbkpk · · Score: 4, Informative

    I was just at a meeting at a meeting at a major healthcare company, and number two on the list of priorities for the next 3 years was diabetes detection/prevention. The budget was in the billions.

    These guys will be making a LOT of money.

  2. Re:Open Source Medicine? by Rosco+P.+Coltrane · · Score: 4, Informative

    This is a good thing, now if only the pharmaceutical companies would make alot of their stuff open to the public, maybe we'd all not suffer nearly as badly due to our wallets not being fat enough.

    Methink you're talking bollocks for the sake of plugging "open source" somewhere...

    What "stuff" is it that pharmaceutical companies need to "open to the public"?

    New medicines must be fully disclosed when they undergo FDA approval, and they always end up completely open because they're patented, and a patent describe the invention/innovation completely. If you don't believe me, ask yourself how it is that countries like India or Brazil manage to copy the very latest in AIDS therapies.

    The reason you pay dearly for medicines that haven't fallen in the public domain is because yoy purchase them from the patent holders, which hold a temporary monopoly on said medicines, and therefore make you pay whatever the hell they want, to recoup their development costs and to pay for their villas in Switzerland.

    In short, it's nothing to do with being open, and all to do with patents. Wrong Slashdot meme there bubba...

    --
    "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
  3. Get The Facts by pin_gween · · Score: 5, Informative

    I am posting instead of replying b/c there are already several separate posts that have it wrong. Gasp and shock, I know.

    Type I diabetes is NOT associated with diet.

    This article refers to an autoimmune disease, not a lifestyle induced one.

    --
    Ignorance is not a crime; neither should it be a way of life

    Congress control $ = inmates run the asylum
  4. PubMed abstract by whovian · · Score: 4, Informative

    J Clin Invest. 2005 Aug 18; [Epub ahead of print] Related Articles, Links

            Noninvasive imaging of pancreatic inflammation and its reversal in type 1 diabetes.
    Turvey SE, Swart E, Denis MC, Mahmood U, Benoist C, Weissleder R, Mathis D.

            Section on Immunology and Immunogenetics, Joslin Diabetes Center, and Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

            A major stumbling block for research on and treatment of type 1 diabetes is the inability to directly, but noninvasively, visualize the lymphocytic/inflammatory lesions in the pancreatic islets. One potential approach to surmounting this impediment is to exploit MRI of magnetic nanoparticles (MNP) to visualize changes in the microvasculature that invariably accompany inflammation. MNP-MRI did indeed detect vascular leakage in association with insulitis in murine models of type 1 diabetes, permitting noninvasive visualization of the inflammatory lesions in vivo in real time. We demonstrate, in proof-of-principle experiments, that this strategy allows one to predict, within 3 days of completing treatment with an anti-CD3 monoclonal antibody, which NOD mice with recent-onset diabetes are responding to therapy and may eventually be cured. Importantly, an essentially identical MNP-MRI strategy has previously been used with great success to image lymph node metastases in prostate cancer patients. This success strongly argues for rapid translation of these preclinical observations to prediction and/or stratification of type 1 diabetes and treatment of individuals with the disease; this would provide a crucially needed early predictor of response to therapy.

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  5. Re:Extremely preminary data by martalli · · Score: 5, Informative

    Sometimes, a person's immune system might confuse some viral proteins with the proteins on the pancreatic beta cells (which make insulin). This leads to the immune system attacking the beta cells. Eventually no beta cells are left and a person requires insulin to replace their natural insulin production.

    There is nolikely specific infection which causes diabetes. However, some viruses may be more likely to confuse the immune system. Also, your immune system's genetic makeup may predispose it to confusing the virus and the beta cells.

    Insulin is required to move glucose from the bloodstream into cells. Without it, the bloodstream glucose level rises until glucose spills out into the urine. In fact, diabetes mellitus is Greek for "sweet urine". Unfortunately, diabetics are literally starving in a sea of food.