Traffic and Alzheimer’s Disease

The closer you live to major roads, the higher the chances are that you’ll develop Alzheimer’s disease (AD), but traffic makes no difference to your risk for Parkinson’s disease (PD) or multiple sclerosis (MS).  What a remarkable statement!!  I love research of this kind; this is epidemiology at its best, so let me share some…

Diffusion Tensor Imaging

Aren’t these amazingly beautiful images of the brain? This is what we call a diffusion tensor image (DTI).  You’d think that the colours were added by a creative artist, but actually they are a code that tells us about the direction of fluid flow in the fibre tracts of the brain.  A DTI scan can…

Viral infection in Alzheimer’s

Is Alzheimer’s disease caused by a viral infection? Yesterday I blogged about the importance of olfactory impairment in the early stages of neurodegenerative diseases, such as Alzheimer’s.  Today I came across a paper on the role of microbes in Alzheimer’s disease (AD) that dovetails so neatly with yesterday’s post that I just have to comment. …

When you can’t smell the roses anymore

Impaired sense of smell (anosmia) is an early warning sign of neurodegenerative diseases, such as Alzheimer’s dementia, Parkinson’s disease, Korsakoff’s syndrome, Lewy-body dementia, HIV-related dementia, and multiple sclerosis.  Anosmia may occur in other conditions, too, such as diabetes.  Anosmia does not affect all patients with neurodegenerative illnesses, but it is nonetheless frequent enough to be…