Alzheimer’s disease (Alzheimer’s) is conceptualized as a progressive consequence of two hallmark pathological changes in gray matter, in particular, extracellular amyloid plaques and neurofibrillary ...

A brain biopsy is used to help diagnose brain lesions. Samples may be taken from the gray matter, white matter, or other sites. Brain biopsies can be done using a minimally invasive or open approach.

Scientists are focusing on a previously understudied part of the brain and spinal cord -- white matter. Their discoveries could lead to treatments that restore nerve activity through the targeted ...