Cited by 626Genetics, Aging, and Longevity in Model OrganismsSingle-cell and spatial transcriptomicsDementia and Cognitive Impairment Research

Gene expression changes in the course of normal brain aging are sexually dimorphic

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Berchtold, Nicole C., Cribbs, David H., Coleman, Paul D., Rogers, Joseph, Head, Elizabeth, Kim, Ronald, Beach, Tom, Miller, Carol +4 more·2008·Proceedings of the National Academy of Sciences

Abstract

Gene expression profiles were assessed in the hippocampus, entorhinal cortex, superior-frontal gyrus, and postcentral gyrus across the lifespan of 55 cognitively intact individuals aged 20–99 years. Perspectives on global gene changes that are associated with brain aging emerged, revealing two overarching concepts. First, different regions of the forebrain exhibited substantially different gene profile changes with age. For example, comparing equally powered groups, 5,029 probe sets were significantly altered with age in the superior-frontal gyrus, compared with 1,110 in the entorhinal cortex. Prominent change occurred in the sixth to seventh decades across cortical regions, suggesting that this period is a critical transition point in brain aging, particularly in males. Second, clear gender differences in brain aging were evident, suggesting that the brain undergoes sexually dimorphic changes in gene expression not only in development but also in later life. Globally across all brain regions, males showed more gene change than females. Further, Gene Ontology analysis revealed that different categories of genes were predominantly affected in males vs. females. Notably, the male brain was characterized by global decreased catabolic and anabolic capacity with aging, with down-regulated genes heavily enriched in energy production and protein synthesis/transport categories. Increased immune activation was a prominent feature of aging in both sexes, with proportionally greater activation in the female brain. These data open opportunities to explore age-dependent changes in gene expression that set the balance between neurodegeneration and compensatory mechanisms in the brain and suggest that this balance is set differently in males and females, an intriguing idea.

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Crossref · 10.1073/pnas.0806883105

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  • Male brains showed greater alterations in overall gene expression, although increased immune activation was characteristic of both sexes.

    “Moreover, the male brains showed greater alterations in overall gene expression, altough increased immune activation was characteristic of both sexes (Berchtold et al, 2008).”

    From Microglia Priming with Aging and Stress (2017) · cites this paper as Berchtold et al, 2008

  • In the human brain, 5029 genes in the superior frontal gyrus, compared with 1110 in the entorhinal cortex, were altered with age.

    “For example, in the human brain, 5029 genes in the superior frontal gyrus, compared with 1110 in the entorhinal cortex, were altered with age.”

    From Microglia Priming with Aging and Stress (2017) · cites this paper as Berchtold et al, 2008

  • Gene expression profile changes in aging occurred in a region-dependent and sexually dimorphic manner.

    “Interestingly, gene expression profile changes in aging occurred in a region-dependent and sexually dimorphic manner.”

    From Microglia Priming with Aging and Stress (2017) · cites this paper as Berchtold et al, 2008

  • Human studies report more pronounced expression of immune-related genes in the hippocampus and cortex of aged women.

    “These findings are in line with human studies reporting more pronounced expression of immune-related genes in the hippocampus and cortex of aged women (Berchtold et al., 2008; Yuan et al., 2012).”

    From Atlas of the aging mouse brain reveals white matter as vulnerable foci (2023) · cites this paper as Berchtold et al., 2008

  • Human MRI and microarray studies demonstrate that the entorhinal cortex displays only mild alterations during cognitively normal human aging, whereas it frequently exhibits the first amyloid deposition in AD patients.

    “This is in line with human MRI (Feng et al., 2020) and microarray (Berchtold et al., 2008) studies demonstrating that the entorhinal cortex displays only mild alterations during cognitively normal human aging, whereas it frequently exhibits the first amyloid deposition in AD patients (Van Hoesen et al., 1991).”

    From Atlas of the aging mouse brain reveals white matter as vulnerable foci (2023) · cites this paper as Berchtold et al., 2008

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Authors
Berchtold, N. C., Cribbs, D. H., Coleman, P. D., Rogers, J., Head, E., Kim, R., Beach, T., Miller, C., Troncoso, J., Trojanowski, J. Q., Zielke, H. R., & Cotman, C. W.
Affiliations
  • University of California, Irvine (US)
  • University of Rochester Medicine (US)
  • Sun Health Research Institute, Sun City, AZ 85372;
  • University of Southern California (US)
  • Johns Hopkins University (US)
  • University of Pennsylvania (US)
  • University of Maryland, Baltimore (US)
Venue
Proceedings of the National Academy of Sciences
Published
2008-10-07
Volume
105
Issue
40
Pages
15605-15610
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2114926230
Cited by
626
References
31
Citations by year
2026: 23 · 2025: 36 · 2024: 49 · 2023: 50 · 2022: 53 · 2021: 41 · 2020: 43 · 2019: 54 · 2018: 53 · 2017: 37 · 2016: 23 · 2015: 33 · 2014: 27 · 2013: 23 · 2012: 24
FWCI
5.51
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (P01AG000538, P50 AG 16573, U01AG016976, AG 00538, P50AG016573, R01AG023173)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
brain aging, gene expression, sex differences, hippocampus, entorhinal cortex, superior frontal gyrus, postcentral gyrus, immune activation, energy metabolism, protein synthesis, neurodegeneration, compensatory mechanisms
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Brain, Female, Gender Identity, Humans, Male, Middle Aged, Sex Characteristics, Gene Expression, Gene Expression Profiling

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