Impairment of odor discrimination and identification is associated with disability progression and gray matter atrophy of the olfactory system in MS.
Gabriel BstehRuth SteigerNoora TuovinenHarald HegenKlaus BerekSebastian WurthMichael AuerFranziska Di PauliElke R GizewskiFlorian DeisenhammerThomas BergerChristoph ScherflerPublished in: Multiple sclerosis (Houndmills, Basingstoke, England) (2019)
Impairment of DI, but not T is associated with GM atrophy in brain regions related to olfactory function. Further studies are warranted to investigate DI scores and temporomesial/putamen GMC as biomarkers for disability progression.