Alzheimer's cure hopes

A drug brought to light by Hippocrates in the fifth century BC has raised hopes that the memory of Alzheimer's patients can be restored. Salsalate, in the same family as aspirin, was typically used to treat inflammatory conditions such as rheumatoid arthritis. But a new study suggests it can prevent the build-up of toxins and reverse all the toxic effects of the tau protein, unblocking pathways and restoring memory.