{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T00:27:36Z","timestamp":1792801656886,"version":"4.5.0"},"reference-count":65,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2012,10,4]],"date-time":"2012-10-04T00:00:00Z","timestamp":1349308800000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Annals of Neurology"],"published-print":{"date-parts":[[2012,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>A study was undertaken to examine the neuropathological substrates of cognitive dysfunction and dementia in Parkinson disease (PD).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>One hundred forty patients with a clinical diagnosis of PD and either normal cognition or onset of dementia 2 or more years after motor symptoms (PDD) were studied. Patients with a clinical diagnosis of dementia with Lewy bodies were excluded. Autopsy records of genetic data and semiquantitative scores for the burden of neurofibrillary tangles, senile plaques, Lewy bodies (LBs), and Lewy neurites (LNs) and other pathologies were used to develop a multivariate logistic regression model to determine the independent association of these variables with dementia. Correlates of comorbid Alzheimer disease (AD) were also examined.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Niney\u2010two PD patients developed dementia, and 48 remained cognitively normal. Severity of cortical LB (CLB)\/LN pathology was positively associated with dementia (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), with an odds ratio (OR) of 4.06 (95% confidence interval [CI], 1.87\u20138.81), as was apolipoprotein E4 (APOE4) genotype (\n                      <jats:italic>p<\/jats:italic>\n                      = 0.018; OR, 4.19; 95% CI, 1.28\u201313.75). A total of 28.6% of all PD cases had sufficient pathology for comorbid AD, of whom 89.5% were demented. The neuropathological diagnosis of PDD+AD correlated with an older age of PD onset (\n                      <jats:italic>p<\/jats:italic>\n                      = 0.001; OR, 1.12; 95% CI, 1.04\u20131.21), higher CLB\/LN burden (\n                      <jats:italic>p<\/jats:italic>\n                      = 0.037; OR, 2.48; 95% CI, 1.06\u20135.82), and cerebral amyloid angiopathy severity (\n                      <jats:italic>p<\/jats:italic>\n                      = 0.032; OR, 4.16; 95% CI, 1.13\u201315.30).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Interpretation:<\/jats:title>\n                    <jats:p>CLB\/LN pathology is the most significant correlate of dementia in PD. Additionally, APOE4 genotype may independently influence the risk of dementia in PD. AD pathology was abundant in a subset of patients, and may modify the clinical phenotype. Thus, therapies that target \u03b1\u2010synuclein, tau, or amyloid \u03b2 could potentially improve cognitive performance in PD. ANN NEUROL 2012;72:587\u2013598<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ana.23659","type":"journal-article","created":{"date-parts":[[2012,6,13]],"date-time":"2012-06-13T08:25:45Z","timestamp":1339575945000},"page":"587-598","source":"Crossref","is-referenced-by-count":462,"title":["Neuropathologic substrates of Parkinson disease dementia"],"prefix":"10.1002","volume":"72","author":[{"given":"David J.","family":"Irwin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew T.","family":"White","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jon B.","family":"Toledo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sharon X.","family":"Xie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John 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