Cited by 51Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Increased aggression in males in transgenic Tg2576 mouse model of Alzheimer's disease

Alexander, Gaukhman, Hanna, Amanda, Serna, Vanida, Younkin, Linda, Younkin, Steve, Janus, Christopher·2011·Behavioural Brain Research

Abstract

Behavioural and psychological signs and symptoms of dementia encompass a wide range of neuropsychiatric disturbances which coincide with progressing cognitive decline in Alzheimer's disease (AD). Physical aggression and agitation, which occurs in 20-65% of AD patients, is physically and emotionally stressful, not only to patients but also to immediate family and caregivers. The exact mechanisms underlying the increased aggressive behaviour in AD has yet to be elucidated. We used a transgenic mouse model, denoted Tg2576, which over-expresses a mutated human amyloid precursor protein (APP) gene implicated in familial AD, to investigate aggressive behaviour of males at the stage of amyloid beta pathology preceding overt amyloid plaque deposition in the brain. The aggressive behaviour of transgenic and non-transgenic littermate males was evaluated in a standard resident-intruder test in which an isolated resident male responded aggressively toward an experimentally naïve intruder male of A/J strain. We showed that 7-month-old Tg2576 resident males demonstrated significantly higher and unchanged level of aggression towards intruder males during 3 consecutive encounters as compared to their non-transgenic littermate counterparts. These results validate further the Tg2576 mouse model of AD underscoring its usefulness in studying non-mnemonic changes in behaviour related to the disease.

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Crossref · 10.1016/j.bbr.2010.07.016

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Authors
Alexander, G., Hanna, A., Serna, V., Younkin, L., Younkin, S., & Janus, C.
Affiliations
  • Mayo Clinic (US)
  • University of Florida (US)
Corresponding author
Janus, Christopher
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
2011-01
Volume
216
Issue
1
Pages
77-83
ISSN
0166-4328 (ISSN-L)
OpenAlex
W2017972820
Cited by
51
References
61
Citations by year
2026: 3 · 2025: 1 · 2024: 2 · 2023: 4 · 2022: 3 · 2021: 2 · 2020: 5 · 2019: 3 · 2018: 3 · 2017: 4 · 2016: 4 · 2015: 4 · 2014: 5 · 2013: 4 · 2012: 2
FWCI
1.52
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, aggression, amyloid precursor protein, amyloid-beta pathology, resident-intruder test, neuropsychiatric symptoms, dementia, male behavior, transgenic mouse model
MeSH terms
Aggression, Alzheimer Disease, Analysis of Variance, Animals, Behavior, Animal, Disease Models, Animal, Male, Mice, Transgenic, Mice

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