Cholesterol link to immune system

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  • pulsar
    • Oct 2006
    • 2194

    Cholesterol link to immune system

    </span> Cholesterol can build up in blood vessels causing damage
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    Lowering cholesterol could help the body's immune system fight viral infections, researchers have said.

    A study by Edinburgh University scientists found when the body succumbs to a viral infection a hormone in the immune system lowers cholesterol.

    Cholesterol produced by cells is needed for viruses to grow.

    Therefore limiting the body's cholesterol would curb the chance for viruses to thrive, the researchers said.

    Currently, drugs such as antibiotics are used to fight infections by targeting the bug directly.

    But the academics said it may be possible to use cholesterol lowering drugs to also boost the immune system.

    A new treatment could help overcome the problems associated with antibiotic resistance, as it enhances the way the body responds to an infection, instead of focusing on attacking the infection itself.

    It could involve mimicking immune signals sent to lower the production of cholesterol.

    Professor Peter Ghazal, of the university's division of pathway medicine, said: "What we have discovered is that a key immune hormone stimulated upon infection can lower cholesterol levels and thereby deprive viral infections of the sustenance they need to grow.

    "Drugs currently exist to lower cholesterol levels, but the next step would be to see if such drugs would also work to help bolster our immune systems."

    The research was funded by the Wellcome Trust, the Biotechnology and Biological Sciences Research Council, the Engineering and Physical Sciences Research Council and the British Heart Foundation.

    This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.


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