Gut bacteria linked to MS

Gut bacteria linked to MS

Questions remain about how autoimmune disorder is triggered

By Tina Hesman Saey, 11:06 AM October 26, 2011

The spark that ignites multiple sclerosis may come from within. A new study in mice points to normal intestinal bacteria as a trigger for the immune disorder.

In patients with multiple sclerosis, the body’s immune system attacks the brain, stripping away a protective sheath called myelin from nerve cells. This causes inflammation that leads to the disease. Although the exact causes of MS are not known, scientists generally agree that a genetic predisposition combines with one or more enviro...

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