http://www.benthamscience.com/open/toddisj/articles/V002/SI0107TODDISJ/181TODDISJ.pdf

SUMMARY
Niacin has multiple effects, among which are increasing
HDL cholesterol, inhibiting inflammation, promoting
vascular remodeling, which in concert support consideration
of using niacin (niaspan) as a therapy for neurological injury
and diseases, such as stroke, multiple sclerosis, vascular
dementia and Alzheimer’s disease