Preserving the blood-brain barrier might prove to be an effective way of preventing the onset of Alzheimer's disease As researchers continue to search for the causes behind Alzheimer's disease and age-related dementia, one possibility is that a leaky blood-brain barrier could have a role to play, allowing for the easy passage of harmful proteins. A new study has explored how this defense might be shored up through the use of an existing anti-cancer drug, with the authors demonstrating some promising results around the reversal of cognitive decline in mice. The blood-brain barrier is an almost impenetrable membrane that prevents harmful...