News Headlines Article

Multiple sclerosis theory dealt a blow by studies
Los Angeles Times

A novel theory about the cause of multiple sclerosis — one that quickly led to millions of dollars in research pledges and an increasingly popular, though unproved, treatment — took a hit Monday from two studies calling the premise into question.

The theory, proposed last year, had gained traction in a field desperate for research advances. It suggests that multiple sclerosis can be traced to obstruction in the veins carrying blood from the brain back to the heart — leading to nervous system damage and causing the hallmark symptoms of muscle weakness, decreased coordination and vision problems.

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