Neuropathology of Parkinson's disease dementia and dementia with Lewy bodies with reference to striatal pathology

Yoshio Tsuboi, Hirotake Uchikado, Dennis W. Dickson

Research output: Contribution to journalArticle

89 Scopus citations

Abstract

Dementia is relatively common in Parkinson's Disease (PD). When dementia occurs in the setting of PD, it is referred to as Parkinson's disease dementia (PDD), which is distinguished from the clinical syndrome in which dementia precedes extrapyramidal features, dementia with Lewy bodies (DLB). In this report, the neuropathology of PDD and DLB is reviewed and preliminary findings are reported on striatal pathology in 28 brains, including 7 PD, 7 PDD and 14 DLB. Sections of putamen immunostained for a-synuclein and investigated with image analysis show that striatal pathology is common and that both cortical and striatal a-synuclein pathology is greater in PDD and DLB than PD. Most cases of PDD and DLB have Alzheimer-type pathology, particularly amyloid plaques, which may act in an additive or synergistic manner with a-synuclein pathology. There are few pathologic differences between PDD and DLB, despite differences in their clinical course.

Original languageEnglish (US)
Pages (from-to)S221-S224
JournalParkinsonism and Related Disorders
Volume13
Issue numberSUPPL. 3
DOIs
StatePublished - Dec 1 2007

Keywords

  • Alzheimer's disease
  • Corpus striatum
  • Dementia with Lewy bodies
  • Parkinson's Disease
  • a-Synuclein

ASJC Scopus subject areas

  • Neurology
  • Geriatrics and Gerontology
  • Clinical Neurology

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