biotinyl derivatives of several lectins and avidin-horseradish peroxidase were used to study the localization of glycoconjugates in amyloid plaques and in neuritic tangles in brains of patients with alzheimer 's disease ( ad ) , downs syndrome ( ds ) and gerstmann-straussler syndrome ( gss ) .
C0006104
brains
C0017495
gerstmann-straussler syndrome