The improvement of cognitive functions is associated with a decrease of plasma Osteopontin levels in Natalizumab treated relapsing multiple sclerosis. Iaffaldano P, Ruggieri M, Viterbo R G, Mastrapasqua M, Trojano M Brain Behav Immun. 2013 Aug 30. PMID: 23994630. Abstract CommentRecommendBookmarkWatch