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Multiple Sclerosis Linked to Gut Bacteria: Study
California Institute of Technology (Caltech) researchers Sarkis K. Mazmanian, an assistant professor of biology at Caltech, and postdoctoral scholar Yun Kyung Lee led the study.
Mazmanian and his colleagues tried to induce MS in animals that were completely devoid of the microbes that normally inhabit the digestive system.
"Lo and behold, these sterile animals did not get sick," he said.
They then inoculated mice with bacteria that had been shown to lead to intestinal inflammation.
The bacteria was also known to induce the appearance of a particular immune-system cell that causes an inflammatory cascade that leads to multiple sclerosis in animals.
Giving the formerly germ-free mice a dose of one species of segmented filamentous bacteria induced this cell not only in the gut but also in the central nervous system and brain-and caused the formerly healthy mice to become ill with MS-like symptoms.
"It definitely shows that gut microbes have a strong role in MS, because the genetics of the animals were the same," Mazmanian said.
The biologists insist, however, that the microbes aren't a direct cause of MS, but encourage conditions that could allow the disease to develop.
"We would like to suggest that gut bacteria may be the missing environmental component," he said.
"Perhaps treatments for diseases such as multiple sclerosis may someday include probiotic bacteria that can restore normal immune function in the gut... and the brain," Mazmanian added.
The study appears online in the Proceedings of the National Academy of Sciences.
Source-ANI
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More News on: Chemotherapy, Chemotherapy Drugs, Infectious Mononucleosis, Multiple Sclerosis Treatment and Modify, Optic Neuritis, Autoimmune Disorders, Probiotics - Support System for the Gut
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