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Prevalence of amyloid-beta deposition in the cerebral cortex in Parkinson's disease.
Mov Disord. 2003 Jan; 18(1):81-6.MD

Abstract

The pathological basis for the dementia which occurs in 20 to 40% of patients with idiopathic Parkinson's disease (PD) remains uncertain. In the present postmortem study, we compared the prevalence and severity of parenchymal and vascular amyloid-beta (Abeta) deposition in the cerebral cortex in a group of 57 PD brains, including 13 cases with dementia, and in 100 control brains. A higher proportion of PD brains had vascular Abeta deposition, whereas the proportions and severity of parenchymal Abeta were similar in the PD and control groups. There was a poor correlation between Abeta deposition and neurofibrillary tangles which were present in only small numbers in a minority of cases. Cortical Abeta deposition was present in only 6 of the 13 cases with dementia and only 3 fulfilled the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) criteria for definite Alzheimer's disease. The present findings confirm that dementia in PD is only infrequently due to fully established Alzheimer's disease. However, vascular and parenchymal Abeta deposition could still contribute to dementia and cognitive decline when combined with other changes such as alpha-synuclein deposition in the cerebral cortex and cortical Lewy bodies.

Authors+Show Affiliations

Australian Neuromuscular Research Institute, Department of Medicine, University of Western Australia, Perth, Australia. flmast@cyllene.uwa.edu.auNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12518303

Citation

Mastaglia, Frank L., et al. "Prevalence of Amyloid-beta Deposition in the Cerebral Cortex in Parkinson's Disease." Movement Disorders : Official Journal of the Movement Disorder Society, vol. 18, no. 1, 2003, pp. 81-6.
Mastaglia FL, Johnsen RD, Byrnes ML, et al. Prevalence of amyloid-beta deposition in the cerebral cortex in Parkinson's disease. Mov Disord. 2003;18(1):81-6.
Mastaglia, F. L., Johnsen, R. D., Byrnes, M. L., & Kakulas, B. A. (2003). Prevalence of amyloid-beta deposition in the cerebral cortex in Parkinson's disease. Movement Disorders : Official Journal of the Movement Disorder Society, 18(1), 81-6.
Mastaglia FL, et al. Prevalence of Amyloid-beta Deposition in the Cerebral Cortex in Parkinson's Disease. Mov Disord. 2003;18(1):81-6. PubMed PMID: 12518303.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence of amyloid-beta deposition in the cerebral cortex in Parkinson's disease. AU - Mastaglia,Frank L, AU - Johnsen,Russell D, AU - Byrnes,Michelle L, AU - Kakulas,Byron A, PY - 2003/1/9/pubmed PY - 2003/3/20/medline PY - 2003/1/9/entrez SP - 81 EP - 6 JF - Movement disorders : official journal of the Movement Disorder Society JO - Mov Disord VL - 18 IS - 1 N2 - The pathological basis for the dementia which occurs in 20 to 40% of patients with idiopathic Parkinson's disease (PD) remains uncertain. In the present postmortem study, we compared the prevalence and severity of parenchymal and vascular amyloid-beta (Abeta) deposition in the cerebral cortex in a group of 57 PD brains, including 13 cases with dementia, and in 100 control brains. A higher proportion of PD brains had vascular Abeta deposition, whereas the proportions and severity of parenchymal Abeta were similar in the PD and control groups. There was a poor correlation between Abeta deposition and neurofibrillary tangles which were present in only small numbers in a minority of cases. Cortical Abeta deposition was present in only 6 of the 13 cases with dementia and only 3 fulfilled the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) criteria for definite Alzheimer's disease. The present findings confirm that dementia in PD is only infrequently due to fully established Alzheimer's disease. However, vascular and parenchymal Abeta deposition could still contribute to dementia and cognitive decline when combined with other changes such as alpha-synuclein deposition in the cerebral cortex and cortical Lewy bodies. SN - 0885-3185 UR - https://www.unboundmedicine.com/medline/citation/12518303/Prevalence_of_amyloid_beta_deposition_in_the_cerebral_cortex_in_Parkinson's_disease_ L2 - https://doi.org/10.1002/mds.10295 DB - PRIME DP - Unbound Medicine ER -