I stumbled upon a study and downloaded the full paper through my university. Unfortunately, even the abstract is unavailable.
Rapid Effects on Vascular Function After Initiation and
Withdrawal of Atorvastatin in Healthy,
Here is the conclusion of the authors, after giving atorvastatin to 8 healthy, male subjects aged 27 to 31 years who were nonsmokers:
Thus, in subjects with normal vascular function,
atorvastatin 80 mg/day improved endothelial function
within 24 hours, before serum cholesterol and
hs-CRP decreased after 2 days of treatment. Withdrawal
of atorvastatin therapy acutely impaired
vascular function independent of cholesterol levels
and the inflammation state.
Could this be the mode of action of statins in MS?
Edit: Research paper
It is quite difficult to understand what this research is about without seeing the diagrams, so I have uploaded it for a while to the link provided.