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Cancer drug’s usefulness against Alzheimer’s disputed

Attempts to reproduce results did not use proper formulation, researchers say

By
10:00am, February 8, 2016

A preliminary report from scientists at the biotech company Amgen Inc. questions a cancer drug’s ability to fight Alzheimer’s disease. In experiments described February 4 in F1000Research, bexarotene, a drug approved by the FDA to treat lymphoma, didn’t reduce levels of the Alzheimer’s-related amyloid-beta protein.

In the original work, described in Science in 2012 (SN: 3/10/12, p. 5), neuroscientist Gary Landreth of Case Western Reserve University in Cleveland and colleagues showed that bexarotene swiftly clears A-beta from the brains of mice, reducing both the sticky plaques and smaller forms of the protein that circulate in the brain. The mice also showed signs of improved learning and memory. A

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