Test Finds Protein Linked to Alzheimer’s

A new test shows when people have a protein linked to Alzheimer’s disease in their brains, researchers say. The protein is called beta-amyloid. The current test is to look for it in a brain autopsy after death. The new test uses a chemical called florbetapir. It binds to beta-amyloid in the brain. This allows the protein to show up on a PET scan. Researchers gave the test to 29 elderly people thought to be near the end of their lives. After they died, autopsies were done. The new test found that 15 of the 29 had Alzheimer’s. The test and autopsy results agreed for 28 out of 29 people. Researchers also gave the test to 74 younger adults. As expected, it showed no beta-amyloid in their brains. Avid Radiopharmaceuticals is seeking approval to market the test. A group of experts was scheduled to evaluate the test January 20. They will advise U.S.

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Plasma Treatment Can Help MS

A doctors’ group says that a plasma treatment can help some cases of multiple sclerosis (MS). The treatment is known as plasma exchange. It’s also called plasmapheresis. It involves removing plasma from the blood and replacing it with plasma from a donor. Plasma exchange requires a hospital stay. Problems can occur, such as infections. Old guidelines from the American Academy of Neurology said it was “promising” as a treatment for MS. The new guidelines say it is “probably effective” if MS symptoms flare up and steroid drugs don’t help. Most people with MS start out having flare-ups. At other times, they have no symptoms. This is called relapsing-remitting MS. Most people end up having progressive MS. This form just gets worse. People have symptoms most or all of the time. Plasma exchange does not help progressive MS, the guidelines say.

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