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Arthritis drug may help fight Alzheimer’s

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In Alzheimer’s disease, changes in tau protein lead to the disintegration of microtubules in brain cells.It’s early on, but a prescription drug used to treat rheumatoid arthritis offers hope for treating  Alzheimer’s disease, research at the Gladstone Institutes, associated with the University of California at San Francisco, strongly suggests.

Gladstone researchers  discovered that salsalate blocked the build-up of a protein that collects in Alzheimer’s patients’ brains. The study showed that the drug reversed cognitive decline and prevented the loss of brain tissue  essential for memory.

The drug is considered  fairly safe but is associated with the  risk of heart attack and/or stroke in some patients.

Salsalate inhibits an enzyme in Alzheimer’s patients’ brains that makes tau  toxic, prompting memory loss. Tau has been a focus of other Alzheimer’s research. Scientists don’t understand why tau builds up some brains or how it causes disease.

This is the first time that researchers have reversed the toxic aspects of the protein tau with a drug, said Li Gan, Ph.D.,  one of the senior researchers.

“Remarkably, the profound protective effects of salsalate were achieved even though it was administered after disease onset, indicating that it may be an effective treatment option,” Ms. Gan said.

The research was conducted on mice at the Gladstone Institutes. The animals had a rare form of dementia associated with Alzheimer’s.


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