Ningxia Key Laboratory of Craniocerebral Diseases of Clinical Medicine Medical University Hui Autonomous Region;
Ningxia Key Laboratory of Craniocerebral Diseases Medical University Hui Autonomous Region;
blood-brain barrier; brain delivery; EXOSOMES; extracellular matrix; fibronectin aggregates; FIBRONECTIN; intestinal flora; multiple sclerosis; remyelination failure; REMYELINATION;