Cited by 232Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeurological Disease Mechanisms and Treatments

High-fat diet-induced memory impairment in triple-transgenic Alzheimer’s disease (3xTgAD) mice is independent of changes in amyloid and tau pathology.

Open access
Knight, Elysse M., Martins, Isaura V.A., Gümüsgöz, Sarah, Allan, Stuart M., Lawrence, Catherine B.·2014·Neurobiology of Aging

Abstract

Obesity and consumption of a high-fat diet are known to increase the risk of Alzheimer's disease (AD). Diets high in fat also increase disease neuropathology and/or cognitive deficits in AD mouse models. However, the effect of a high-fat diet on both the neuropathology and memory impairments in the triple-transgenic mouse model of AD (3xTgAD) is unknown. Therefore, groups of 2-month-old male 3xTgAD and control (non-Tg) mice were maintained on a high-fat or control diet and memory was assessed at the age of 3-4, 7-8, 11-12, and 15-16 months using a series of behavioral tests. A comparable increase in body weight was observed in non-Tg and 3xTgAD mice after high-fat feeding at all ages tested but a significantly greater increase in epididymal adipose tissue was observed in 3xTgAD mice at the age of 7-8, 11-12, and 15-16 months. A high-fat diet caused memory impairments in non-Tg control mice as early as the age of 3-4 months. In 3xTgAD mice, high-fat consumption led to a reduction in the age of onset and an increase in the extent of memory impairments. Some of these effects of high-fat diet on cognition in non-Tg and 3xTgAD mice were transient, and the age at which cognitive impairment was detected depended on the behavioral test. The effect of high-fat diet on memory in the 3xTgAD mice was independent of changes in AD neuropathology as no significant differences in (plaques, oligomers) or tau neuropathology were observed. An acute increase in microglial activation was seen in high-fat fed 3xTgAD mice at the age of 3-4 months but in non-Tg control mice microglial activation was not observed until the age of 15-16 months. These data indicate therefore that a high-fat diet has rapid and long-lasting negative effects on memory in both control and AD mice that are associated with neuroinflammation, but independent of changes in beta amyloid and tau neuropathology in the AD mice.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.neurobiolaging.2014.02.010

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Addition of a high fat/high sugar diet exacerbates Alzheimer's disease phenotypes in mouse models relevant to early-onset AD.

    “Also, the addition of an HFD exacerbated AD phenotypes in mouse models relevant to early-onset AD (Knight et al., 2014; Jones et al., 2019; Bracko et al., 2020; Robison et al., 2020; Jones et al., 2021).”

    From Plcg2M28L Interacts With High Fat/High Sugar Diet to Accelerate Alzheimer’s Disease-Relevant Phenotypes in Mice (2022) · cites this paper as Knight et al., 2014

    The Discussion (page unavailable) reports that a high-fat diet worsened memory deficits in 3xTgAD mice, supporting the high-fat-diet part of the citing sentence. The Methods describe the diet as high-fat, not high-fat/high-sugar; the quoted claim’s added sugar qualifier is unsupported. The Discussion also reports no increase in amyloid or tau deposition, so the exacerbation shown is cognitive rather than neuropathological. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

1 retracted

Flagged first, then by citations

1 of the 56 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. Paxinos G. Franklin K. The Mouse Brain in Stereotaxic Coordintes 2001 Academic Press London, UK

Cited by

Sorted by citations

Authors
Knight, E. M., Martins, I. V. A., Gümüsgöz, S., Allan, S. M., & Lawrence, C. B.
Affiliations
University of Manchester (GB)
Corresponding author
Lawrence, Catherine B.
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2014-08
Volume
35
Issue
8
Pages
1821-1832
ISSN
0197-4580 (ISSN-L)
OpenAlex
W1994083528
Cited by
232
References
56
Citations by year
2026: 11 · 2025: 14 · 2024: 14 · 2023: 19 · 2022: 23 · 2021: 20 · 2020: 21 · 2019: 26 · 2018: 24 · 2017: 18 · 2016: 30 · 2015: 7 · 2014: 5
FWCI
13.33
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Aging (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
Medical Research Council
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 › Neurological Disease Mechanisms and Treatments
Keywords
high-fat diet, Alzheimer's disease, 3xTg-AD mice, memory impairment, obesity, amyloid plaques, tau pathology, microglial activation, neuroinflammation, adipose tissue, cognitive aging
MeSH terms
Adipose Tissue, Alzheimer Disease, Animals, Brain, Cognition, Disease Models, Animal, Epididymis, Male, Memory, Mice, Transgenic, Risk, Amyloid beta-Peptides, tau Proteins, Mice, Diet, High-Fat

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review