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High-fat diet-induced memory impairment in triple-transgenic Alzheimer’s disease (3xTgAD) mice is independent of changes in amyloid and tau pathology.
Open accessAbstract
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.
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“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
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1 retracted
RETRACTED ARTICLE: A specific amyloid-β protein assembly in the brain impairs memory
Lesné, S., Koh, M. T., Kotilinek, L., Kayed, R., Glabe, C. G., Yang, A., Gallagher, M., & Ashe, K. H. (2006) · Nature · doi:10.1038/nature04533 · Cited by 2,769 · cited 1×
“Ab oligomers are currently thought to be the key species involved in Ab toxicity (Lesne et al., 2006; Shankar et al., 2008; Walsh et al., 2002) but in the present study no change in expression of soluble oligomers was detected in the hippocampus of 3xTgAD mice on a high-fat diet at any time point.”
RetractedMorris water maze: procedures for assessing spatial and related forms of learning and memory
Vorhees, C. V., & Williams, M. T. (2006) · Nature Protocols · doi:10.1038/nprot.2006.116 · Cited by 4,629 · cited 1×
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“Ab oligomers are currently thought to be the key species involved in Ab toxicity (Lesne et al., 2006; Shankar et al., 2008; Walsh et al., 2002) but in the present study no change in expression of soluble oligomers was detected in the hippocampus of 3xTgAD mice on a high-fat diet at any time point.”
Triple-Transgenic Model of Alzheimer’s Disease with Plaques and Tangles
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“Ab oligomers are currently thought to be the key species involved in Ab toxicity (Lesne et al., 2006; Shankar et al., 2008; Walsh et al., 2002) but in the present study no change in expression of soluble oligomers was detected in the hippocampus of 3xTgAD mice on a high-fat diet at any time point.”
Neuropathological alterations in Alzheimer disease
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“In humans, the severity of AD-related neuropathology especially Ab plaque burden, does not always correlate with, or is predictive of, cognitive deficits, and memory impairments can occur in mouse AD models in advance of overt Ab plaque (and tangle) pathology (Billings et al., 2005; Oddo et al., 2003b; Serrano-Pozo et…”
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Amyloid deposition precedes tangle formation in a triple transgenic model of Alzheimer's disease
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BackgroundInfluentialLow-Dose Radiation Therapy Reduces Amyloid Load in Young 3xTg-AD Mice
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“The genetic induction of AD-likepathologyinthebrainhasbeenshowntolead to peripheral glucose intolerance [63], aggravated by HFD [47, 55].”
InfluentialEffects of ketogenic diet on cognitive functions of mice fed high-fat-high-cholesterol diet
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BackgroundResultInfluentialAnimal Models of Alzheimer’s Disease
Newman, M., Kretzschmar, D., Khan, I., Chen, M., Verdile, G., & Lardelli, M. T. (2017) · Elsevier eBooks · doi:10.1016/b978-0-12-809468-6.00040-1 · Cited by 25
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BackgroundDietary composition affects the development of cognitive deficits in WT and Tg AD model mice
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“HF consumption by (3xTgAD) mice led to a reduction in the age of onset and an increase in the extent of memory impairments (Knight et al. 2014).”
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“185,186 Other studies have found 3 to 8 week regimens impaired mitochondrial function and oxidative stress, 187 increased A β pathology, 185,188 and increased astrogliosis and microgliosis.”
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“Some studies found that although HFD impaired cognition and memory in AD mouse models, it had no significant effect on the histopathological progression [9–11].”
Downregulation of miR-33 Has Protective Effect Against Aβ25–35-Induced Injury in SH-SH-SY5Y Cells
Wang, X.-P., Li, X.-J., Huang, B., Yang, L., Chen, K., Zhao, D., Luo, X., & Wang, Y. (2020) · Medical Science Monitor · doi:10.12659/msm.921026 · Cited by 15
“Background Alzheimer disease (AD), characterized by memory loss and progressive cognitive dysfunction, is a common chronic neurodegenerative disease [1].”
BackgroundBan, S. Y., Nam, Y., Do, T. T., Kim, B., Shin, S. J., Nguyen, M. T. T., Kim, J., Moon, M., & Park, J. (2025) · Biomedicine & Pharmacotherapy · doi:10.1016/j.biopha.2025.117895 · Cited by 11
Relationship between Alzheimer’s Disease and the Human Microbiome
Fujii, Y., Khasnobish, A., & Morita, H. (2019) · Codon Publications eBooks · doi:10.15586/alzheimersdisease.2019.ch9 · Cited by 11
Park, S. K., Lee, H. L., Kang, J. Y., Kim, J. M., & Heo, H. J. (2022) · Scientific Reports · doi:10.1038/s41598-022-10520-5 · Cited by 10
Sex Differences in Hypothalamic Changes and the Metabolic Response of TgAPP Mice to a High Fat Diet
Freire‐Regatillo, A., Díaz-Pacheco, S., Frago, L. M., Arévalo, M., Argente, J., García‐Segura, L. M., CEBALLOS, M. L. D., & Chowen, J. A. (2022) · Frontiers in Neuroanatomy · doi:10.3389/fnana.2022.910477 · Cited by 10
Zhou, L., Huang, J., Zhang, D., & Zhao, Y. (2020) · Experimental and Therapeutic Medicine · doi:10.3892/etm.2020.8760 · Cited by 9
“In recent years, 3xTg mice have been used to study AD, since they share similar clinicopathological characteristics with patients with AD, including memory impairments, early-onset brain amyloidosis, neuronal apoptosis and permanent loss of neurons (18,19).”
BackgroundRetractedBlockage of Fc Gamma Receptors Alleviates Neuronal and Microglial Toxicity Induced by Palmitic Acid
Phitthayaphong, P., Kumfu, S., Chattipakorn, N., & Chattipakorn, S. C. (2021) · Journal of Alzheimer s Disease · doi:10.3233/jad-210417 · Cited by 10
Interaction Between a High-Fat Diet and Tau Pathology in Mice: Implications for Alzheimer’s Disease
Jang, Y. J., Choi, M. G., Yoo, B. J., Lee, K. J., Jung, W. B., Kim, S., & Park, S. A. (2023) · Journal of Alzheimer s Disease · doi:10.3233/jad-230927 · Cited by 8
“5. chronicHFDfeedingisconsistentwithpreviousstud-iesonmiceoverexpressinghumanWT[43]and mutanttau:Tau22( MAPT G272 V & P301S) and 3 × TG-AD ( APP swe, PSEN1 M146 V, and MAPT P301L) [25–27] (Table 2).”
Cognitive decline in diabetic mice predisposed to Alzheimer’s disease is greater than in wild type
Carús-Cadavieco, M., Berenguer, I., Canelo, A. M., Serrano-Lope, M. A., la Fuente, S. G., Aguado, B., Fernández‐Rodrigo, A., Saido, T. C., Frank, A., Venero, C., et al. (2023) · Life Science Alliance · doi:10.26508/lsa.202201789 · Cited by 9
“…AD (e.g., the triple transgenic mouse), concluding that diabetes produce significant changes in the brain to produce AD (Pedersen & Flynn, 2004; Knight et al, 2014; Vandal et al, 2015; 1Molecular Neuropathology Unit, Physiological and Pathological Processes Program, Centro de Biologı́a…”
BackgroundThe LIDPAD Mouse Model Captures the Multisystem Interactions and Extrahepatic Complications in MASLD
Low, Z. S., Chua, D., Cheng, H. S., Tee, R., Tan, W., Ball, C., Sahib, N. B. E., Ng, S. S., Qu, J. T., Liu, Y., et al. (2024) · Advanced Science · doi:10.1002/advs.202404326 · Cited by 8
Categorizing Food Related Illness: Have We Got It Right?
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Kim, J.-K., Hong, S.-H., Park, J., & Kim, S. (2023) · Metabolites · doi:10.3390/metabo13030407 · Cited by 8
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“However, in rodents it appears that the effects of HFD on cognition depends on the treatment design (e.g. duration of diet exposure) and the cognitive domains analysed (Kanoski & Davidson 2010; Knight et al. 2014; Morrison et al. 2010).”
BackgroundGratuze, M., Joly‐Amado, A., Buée, L., Vieau, D., & Blum, D. L. (2019) · Advances in experimental medicine and biology · doi:10.1007/978-981-32-9358-8_21 · Cited by 8
Xiao, Y., Gong, X., Deng, R., Liu, W., Yang, Y., Wang, X., Wang, J., Bao, J., & Shu, X. (2022) · Journal of Alzheimer s Disease · doi:10.3233/jad-215705 · Cited by 8
“Using the triple-transgenic AD mouse model, Knight et al. demonstrated that high-fat consumption resulted in memory impairment and more severe cognitive impairment, which is independent of alterations in tau neuropathology [37].”
Querfurth, H. W., Slitt, A. L., DiCamillo, A., Surles, N. O., DeBoef, B., & Lee, H. (2022) · SSRN Electronic Journal · doi:10.2139/ssrn.4105279 · Cited by 8
Lasting metabolic effect of a high-fructose diet on global cerebral ischemia
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Patwekar, M., Patwekar, F., Shaikh, D., Fatema, S. R., Aher, S. J., & Sharma, R. (2023) · Applied Chemical Engineering · doi:10.24294/ace.v6i3.2338 · Cited by 8
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Effect of astaxanthin in type-2 diabetes -induced APPxhQC transgenic and NTG mice
Babalola, J. A., Stracke, A., Loeffler, T., Schilcher, I., Sideromenos, S., Flunkert, S., Neddens, J., Lignell, Å., Prokesch, M., Pazenboeck, U., et al. (2024) · Molecular Metabolism · doi:10.1016/j.molmet.2024.101959 · Cited by 5
Filbertone-Induced Nrf2 Activation Ameliorates Neuronal Damage via Increasing BDNF Expression
Gong, J. H., Kim, C.-S., Park, J., Kang, S., Jang, Y., Kim, M., Chung, H., Joe, Y., & Yu, R. (2024) · Neurochemical Research · doi:10.1007/s11064-024-04290-x · Cited by 5
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Wang, M., Jin, B., Xu, J., & Wang, C. (2025) · Nutrients · doi:10.3390/nu17162679 · Cited by 4
“While previous studies reported that HFD did not significantly affect the A β burden in the hippocampus [65], our data show increased A β deposition in both the hippocampus and cortex in HFD-fed 5 × FAD mice.”
Lai, A. Y., Almanza, D. L., Ribeiro, J. A., Hill, M. E., Mandrozos, M., Koletar, M. M., Stefanovic, B., & McLaurin, J. (2024) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2024.01.11.575200 · Cited by 4
Gene Transfer Induced Hypercholesterolemia in Amyloid Mice
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Metadata
- 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)
- PMC
- PMC4024197
- 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
- hybrid
- doi.org
- 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
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › 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
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