Cited by 105Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsNeurological Disease Mechanisms and Treatments

Associations Between Neuropsychiatric Symptoms and Neuropathological Diagnoses of Alzheimer Disease and Related Dementias

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Devanand, Davangere P., Lee, Seonjoo, Huey, Edward D., Goldberg, Terry E.·2022·JAMA Psychiatry

Abstract

IMPORTANCE: Understanding associations of Alzheimer disease (AD) and related dementias (ADRD) pathologies with common neuropsychiatric symptoms (NPS) may have implications for diagnosis and management. OBJECTIVE: To evaluate ADRD neuropathological diagnoses and NPS without consideration of clinical diagnosis. DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study evaluated 1808 brains from 39 sites in the US National Alzheimer Coordinating Center v. 10 collection for participants among whom the Neuropsychiatric Inventory Questionnaire (NPIQ) was administered annually. Brain autopsy diagnoses of AD, Lewy body disease (LBD), cerebral amyloid angiopathy, frontotemporal lobar degeneration, cerebrovascular disease, hippocampal sclerosis, and no known pathology were examined. Autopsy data collected from January 2012 to January 2018 were deidentified and compiled into the publicly available v. 10 database. Data were analyzed from February 2021 to August 2021. MAIN OUTCOMES AND MEASURES: The primary outcome was NPIQ domain score, if present at any time point, and mean NPIQ domain score during follow-up was secondary. Associations of ADRD diagnoses with 12 NPIQ symptom domains were examined in regression analyses, correcting for multiple comparisons. RESULTS: The study sample of 1808 adults had a mean (SD) age of 80.0 (11.0) years, and 987 participants (54.6%) were male. Apathy was the most prevalent NPS, reaching 80% (203 of 254 individuals) in those with hippocampal sclerosis. Cerebrovascular disease showed few NPS associations. Frontotemporal lobar degeneration was associated with increased apathy, increased disinhibition, and decreased psychosis and agitation compared with AD. Hippocampal sclerosis was associated with increased apathy (odds ratio, 2.60; 95% CI; 1.86-3.66, false discovery rate controlled P < .001) and disinhibition (odds ratio, 2.15; 95% CI, 1.63-2.84; false discovery rate controlled P < .001). In multiple regression analyses that included concomitant neuropathologies, the main findings remained. More severe pathology was consistently associated with increased NPS (eg, LBD was associated with an increase in hallucinations from brain stem [β, 0.23; 95% CI, 0.07-0.76; P = .02] to limbic [β, 1.69; 95% CI, 1.27-2.27; P < .001] to neocortical [β, 4.49; 95% CI, 3.27-6.16; P < .001] pathology). Hallucinations were more common in participants with AD and LBD (168 of 534 [31.5%]) compared with those with AD without LBD (152 of 704 [21.6%]) and those with LBD without AD (23 of 119 [19.6%]). CONCLUSIONS AND RELEVANCE: In this cohort study of 1808 brains from the US National Alzheimer Coordinating Center, patients with LBD and AD showed a higher prevalence of hallucinations compared with those with LBD without AD. Neuropsychiatric symptom criteria of apathy and disinhibition in behavioral variant frontotemporal lobar degeneration were supported in this study. In hippocampal sclerosis, the findings of increased apathy and disinhibition merit further investigation. Severity of neuropathology was associated with NPS severity, indicating that NPS may reflect underlying ADRD pathology and highlighting the importance of diagnosing and treating NPS.

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  • AD is categorized into three stages: mild, moderate, and severe.

    “AD is categorized into three stages: mild, moderate, and severe [24,25,26,27,28].”
  • The most common symptoms of AD are short-term memory loss, followed by progressive impairment in implicit and explicit memory, and neuropsychiatric symptoms with eventual loss of ability to perform basic daily duties.

    “The most common symptoms of AD are short-term memory loss, which is followed by a progressive impairment in both implicit and explicit memory. Those who have the condition also exhibit neuropsychiatric symptoms, and with time, they lose their ability to perform basic daily duties [24,25,26,27,28].”

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  1. [9]Manera V, Fabre R, Stella F, et al. A survey on the prevalence of apathy in elderly people referred to specialized memory centers. Int J Geriatr Psychiatry. 2019;34(10):1369-1377. [DOI] [PubMed] [Google Scholar]
  2. [24]Malmgren K, Thom M. Hippocampal sclerosis—origins and imaging. Epilepsia. 2012;53(suppl 4):19-33. doi: 10.1111/j.1528-1167.2012.03610.x [DOI] [PubMed] [Google Scholar] · DOI

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Authors
Devanand, D. P., Lee, S., Huey, E. D., & Goldberg, T. E.
Affiliations
Columbia University Irving Medical Center (US)
Venue
JAMA Psychiatry
Published
2022-04-01
Volume
79
Issue
4
Pages
359
ISSN
2168-622X (ISSN-L)
OpenAlex
W4213144865
Cited by
105
References
38
Citations by year
2026: 21 · 2025: 29 · 2024: 37 · 2023: 14 · 2022: 4
FWCI
13.69
Type
journal article
Language
en
Open access
Locations
  • JAMA Psychiatry (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (R01AG051346, R01AG062268, P30AG010161, U01AG079850, P30AG072975)
  • National Institute of Mental Health (R01MH120794)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
neuropsychiatric symptoms, Alzheimer's disease and related dementias, neuropathology, Lewy body disease, cerebral amyloid angiopathy, frontotemporal lobar degeneration, cerebrovascular disease, hippocampal sclerosis, apathy, disinhibition, psychosis, agitation, Neuropsychiatric Inventory Questionnaire, brain autopsy
MeSH terms
Aged, 80 and over, Alzheimer Disease, Hallucinations, Humans, Male, Retrospective Studies, Sclerosis, Cohort Studies, Frontotemporal Lobar Degeneration, Frontotemporal Dementia

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