Nobiletin, a Citrus Flavonoid, Improves Cognitive Impairment and Reduces Soluble Aβ Levels in a Triple Transgenic Mouse Model of Alzheimer’s Disease (3XTg-AD)
Abstract
Alzheimer's disease (AD), the most common form of dementia among the elderly, is characterized by the progressive decline of cognitive function. Increasing evidence indicates that the production and accumulation of amyloid β (Aβ), particularly soluble Aβ oligomers, is central to the pathogenesis of AD. Our recent studies have demonstrated that nobiletin, a polymethoxylated flavone from citrus peels, ameliorates learning and memory impairment in olfactory-bulbectomized mice, amyloid precursor protein transgenic mice, NMDA receptor antagonist-treated mice, and senescence-accelerated mouse prone 8. Here, we present evidence that this natural compound improves cognitive impairment and reduces soluble Aβ levels in a triple transgenic mouse model of AD (3XTg-AD) that progressively develops amyloid plaques, neurofibrillary tangles, and cognitive impairments. Treatment with nobiletin (30 mg/kg) for 3 months reversed the impairment of short-term memory and recognition memory in 3XTg-AD mice. Our ELISA analysis also showed that nobiletin reduced the levels of soluble Aβ1-40 in the brain of 3XTg-AD mice. Furthermore, nobiletin reduced ROS levels in the hippocampus of 3XTg-AD as well as wild-type mice. These results suggest that this natural compound has potential to become a novel drug for the treatment and prevention of AD.
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Nobiletin attenuates senescence-related cognitive deficits in SAMP8 mice by counteracting amyloid ß accumulation in the brain.
“One of these, nobiletin, was demonstrated to attenuate senescence-related cognitive deficits in SAMP8 mice by counteracting amyloid ß accumulation in the brain [302,303].”
From The Role of Antioxidants in the Interplay between Oxidative Stress and Senescence (2022) · cites this paper as [303]
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- Authors
- Nakajima, A., Aoyama, Y., Shin, E.-J., Nam, Y., Kim, H.-C., Nagai, T., Yokosuka, A., Mimaki, Y., Yokoi, T., Ohizumi, Y., & Yamada, K.
- Affiliations
- Nagoya University (JP)
- Kangwon National University (KR)
- Tokyo University of Pharmacy and Life Sciences (JP)
- Tohoku Fukushi University (JP)
- Corresponding author
- Yamada, Kiyofumi
- ORCID
- Venue
- Behavioural Brain Research
- Publisher
- Elsevier BV
- Published
- 2015-08
- Volume
- 289
- Pages
- 69-77
- ISSN
- 0166-4328 (ISSN-L)
- OpenAlex
- W2014227309
- Cited by
- 138
- References
- 58
- Citations by year
- 2026: 12 · 2025: 5 · 2024: 12 · 2023: 11 · 2022: 21 · 2021: 16 · 2020: 14 · 2019: 14 · 2018: 6 · 2017: 16 · 2016: 8 · 2015: 3
- FWCI
- 13.28
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Behavioural Brain Research (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Japan Society for the Promotion of Science (23659135, 24111518, 25116515, 26670121)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Bioactive Compounds in Plants
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
- Keywords
- nobiletin, citrus flavonoids, Alzheimer's disease, 3xTg-AD mice, soluble amyloid-beta, Aβ40, cognitive impairment, memory impairment, reactive oxygen species, hippocampus, neuroprotection, natural compounds
- MeSH terms
- Alzheimer Disease, Animals, Avoidance Learning, Brain, Disease Models, Animal, Male, Mice, Inbred C57BL, Mice, Transgenic, Motor Activity, Peptide Fragments, Amyloid beta-Peptides, Oxidative Stress, Maze Learning, Recognition, Psychology, Flavones, Mice
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