Role of brain iron accumulation in cognitive dysfunction: evidence from animal models and human studies
Abstract
Over the last decades, studies from our laboratory and other groups using animal models have shown that iron overload, resulting in iron accumulation in the brain, produces significant cognitive deficits. Iron accumulation in the hippocampus and the basal ganglia has been related to impairments in spatial memory, aversive memory, and recognition memory in rodents. These results are corroborated by studies showing that the administration of iron chelators attenuates cognitive deficits in a variety of animal models of cognitive dysfunction, including aging and Alzheimer's disease models. Remarkably, recent human studies using magnetic resonance image techniques have also shown a consistent correlation between cognitive dysfunction and iron deposition, mostly in the hippocampus, cortical areas, and basal ganglia. These findings may have relevant implications in the light of the knowledge that iron accumulates in brain regions of patients suffering from neurodegenerative diseases. A better understanding of the functional consequences of iron dysregulation in aging and neurological diseases may help to identify novel targets for treating memory problems that afflict a growing aging population.
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Increases of iron in animal brains produce pronounced cognitive defects.
“Increases of iron in animal brains produce pronounced cognitive defects.92”
From The role of iron in brain ageing and neurodegenerative disorders (2014) · cites this paper as [92]
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The PICALM Protein Plays a Key Role in Iron Homeostasis and Cell Proliferation
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Neonatal iron exposure induces oxidative stress in adult Wistar rat
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Self-citationTransferrin and HFE genes interact in Alzheimer's disease risk: the Epistasis Project
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de Lima, M. N., Presti-Torres, J., Garcia, V. A., Guimarães, M. R., Scalco, F. S., Roesler, R., & Schröder, N. (2008) · Neuropharmacology · doi:10.1016/j.neuropharm.2008.06.025 · Cited by 58 · see citing works
Self-citationda Silva, P. F., Garcia, V. A., Dornelles, A. D. S., da Silva, V. K., Maurmann, N., Portal, B. C. D., Ferreira, R. D. P., Piazza, F. C., Roesler, R., & Schröder, N. (2011) · Neuroscience · doi:10.1016/j.neuroscience.2011.10.038 · Cited by 56 · see citing works
Self-citationReversion of age-related recognition memory impairment by iron chelation in rats
de Lima, M. N. M., Dias, C. P., Torres, J. P., Dornelles, A. D. S., Garcia, V. A., Scalco, F. S., Guimarães, M. R., Petry, R. C., Bromberg, E., Constantino, L. D. S., et al. (2007) · Neurobiology of Aging · doi:10.1016/j.neurobiolaging.2007.02.006 · Cited by 55 · see citing works
Self-citationIron as the malignant spirit in successful ageing.
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Selegiline protects against recognition memory impairment induced by neonatal iron treatment
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Self-citationIntellectual and adaptive behaviour functioning in pantothenate kinase‐associated neurodegeneration
Freeman, K., Gregory, A., Turner, A., et al. (2007) · Journal of Intellectual Disability Research · doi:10.1111/j.1365-2788.2006.00889.x · Cited by 45 · see citing works
Desferoxamine reverses neonatal iron-induced recognition memory impairment in rats
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Self-citationZabel, C., Nguyen, H. P., Hin, S. C., Hartl, D., Mao, L., & Klose, J. (2010) · Journal of Proteomics · doi:10.1016/j.jprot.2010.08.008 · Cited by 43 · see citing works
Iron Leads to Memory Impairment that is Associated with a Decrease in Acetylcholinesterase Pathways
Perez, V. P., de Lima, M. M., da Silva, R. S., Dornelles, A. D. S., Vedana, G., Bogo, M. R., Bonan, C. D., & Schröder, N. (2010) · Current Neurovascular Research · doi:10.2174/156720210790820172 · Cited by 42 · see citing works
Self-citationThe Effect of Metals on Spatial Memory in a Transgenic Mouse Model of Alzheimer's Disease
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The path to epigenetic treatment of memory disorders
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Neuroprotection by the multitarget iron chelator M30 on age-related alterations in mice
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Neuropathological quantification of dtg APP/PS1: neuroimaging, stereology, and biochemistry
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Reversal of age-associated memory impairment by rosuvastatin in rats
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Considerations for measuring iron in post-mortem tissue of Parkinson’s disease patients
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Neonatal Iron Treatment Increases Apoptotic Markers in Hippocampal and Cortical Areas of Adult Rats
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Self-citationAmyloid Beta Peptide, 4-Hydroxynonenal and Apoptosis
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Increased iron and oxidative stress are separately related to cognitive decline in elderly
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A Cross-Sectional Community Study of Serum Iron Measures and Cognitive Status in Older Adults
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Pilocarpine prevents age-related spatial learning impairments in rats
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Antioxidant Effects of SelegilIne in Oxidative Stress Induced by Iron Neonatal Treatment in Rats
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Self-citationEarly Post-Natal Iron Administration Induces Astroglial Response in the Brain of Adult and Aged Rats
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Self-citationAlzheimer-associated mutant ubiquitin impairs spatial reference memory
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Regulation of iron-related molecules in the rat hippocampus: sex- and age-associated differences.
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The role of iron in brain ageing and neurodegenerative disorders
Ward, R. J., Zucca, F. A., Duyn, J. H., Crichton, R. R., & Zecca, L. (2014) · The Lancet Neurology · doi:10.1016/s1474-4422(14)70117-6 · Cited by 1,819 · see citing works
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Self-citationIron-dependent trafficking of 5-lipoxygenase and impact on human macrophage activation
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Neurocognitive Function Is Associated With Serum Iron Status in Early Adolescents
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- Authors
- Schröder, N., Figueiredo, L. S., & de Lima, M. N. M.
- Affiliations
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (BR)
- Pontifícia Universidade Católica do Rio Grande do Sul (BR)
- Neurobiology and Developmental Biology Laboratory, Faculty of Biosciences, Pontifical Catholic University, Porto Alegre, RS, Brazil
- ORCID
- Schröder, Nadja
- Venue
- Journal of Alzheimer s Disease
- Publisher
- SAGE Publications
- Published
- 2013-03-20
- Volume
- 34
- Issue
- 4
- Pages
- 797-812
- ISSN
- 1387-2877 (ISSN-L)
- 1875-8908
- OpenAlex
- W1573719164
- Cited by
- 113
- References
- 127
- Citations by year
- 2026: 5 · 2025: 12 · 2024: 10 · 2023: 11 · 2022: 8 · 2021: 12 · 2020: 3 · 2019: 10 · 2018: 7 · 2017: 6 · 2016: 6 · 2015: 8 · 2014: 10 · 2013: 5
- FWCI
- 6.86
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Alzheimer s Disease (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
- Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
- Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
- Keywords
- brain iron accumulation, iron overload
- MeSH terms
- Animals, Brain, Cognition Disorders, Disease Models, Animal, Humans, Iron
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