ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2020
Systemic Tumor Necrosis Factor-Alpha Trajectories Relate to Brain Health in Typically Aging Older Adults.
Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
32 citing papers in PubMed, 45 citations in OpenAlex.
- Horticultural Therapy Reduces Biomarkers of Immunosenescence and Inflammaging in Community-Dwelling Older Adults: A Feasibility Pilot Randomized Controlled Trial.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021Trial
- Associations between white matter lesions, adiposity, and systemic inflammation in late adulthood: Results from the IGNITE study.Brain, behavior, and immunity · 2026Article
- The importance of TNF-α signaling: a potential risk factor in neurodegenerative and cardiovascular diseases.Archives of medical science : AMS · 2026Article
- A discovery protein panel for brain predicted age discordance using MRI in neurologically healthy individuals.Frontiers in cell and developmental biology · 2026Article
- Imaging markers of neuroinflammation in aging and Alzheimer's disease and related dementia: A comprehensive review.Neuroscience and biobehavioral reviews · 2025Review
- Large-Scale Meta-Analysis of TNF-α rs1800629 Polymorphism in Schizophrenia: Evidence from 7,624 Cases and 8,933 Controls.Medeniyet medical journal · 2025Article
- Vitamin B12 Levels Association with Functional and Structural Biomarkers of Central Nervous System Injury in Older Adults.Annals of neurology · 2025Article
- Astrocytes in aging.Neuron · 2025Review
- Biomarker integration and biosensor technologies enabling AI-driven insights into biological aging.Frontiers in aging · 2025Review
- The role of dynapenia and obesity on cognitive function in older adults.Clinical nutrition ESPEN · 2024Article
- Remote dried blood spot collection for inflammatory markers in older adults is feasible, reliable, and valid.Brain, behavior, and immunity · 2024Article
- Inflammatory Markers Associated with Physical Frailty and Cognitive Impairment.Aging and disease · 2024Review
- Article
- The association between kidney function, cognitive function, and structural brain abnormalities in community-dwelling individuals aged 50+ is mediated by age and biomarkers of cardiovascular disease.Cardiovascular research · 2023Article
- Immune cell counts in cerebrospinal fluid predict cognitive function in aging and neurodegenerative disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023Article
- The role of peripheral inflammatory insults in Alzheimer's disease: a review and research roadmap.Molecular neurodegeneration · 2023Review
- Life stressors and immune aging: Protective effects of cognitive reappraisal.Brain, behavior, and immunity · 2023Article
- Work-Related Psychosocial Factors and Global Cognitive Function: Are Telomere Length and Low-Grade Inflammation Potential Mediators of This Association?International journal of environmental research and public health · 2023Article
- Meta-analysis of the association between dietary inflammatory index and cognitive health.Frontiers in nutrition · 2023Review
- Age-related brain atrophy is not a homogenous process: Different functional brain networks associate differentially with aging and blood factors.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
Corrections and comments
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Authors and funding
15 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundCentral nervous system levels of tumor necrosis factor-alpha (TNF-α), a pro-inflammatory cytokine, regulate the neuroinflammatory response and may play a role in age-related neurodegenerative diseases. The longitudinal relation between peripheral levels of TNF-α and typical brain aging is understudied. We hypothesized that within-person increases in systemic TNF-α would track with poorer brain health outcomes in functionally normal adults.
methodsPlasma-based TNF-α concentrations (pg/mL; fasting morning draws) and magnetic resonance imaging were acquired in 424 functionally intact adults (mean age = 71) followed annually for up to 8.4 years (mean follow-up = 2.2 years). Brain outcomes included total gray matter volume and white matter hyperintensities. Cognitive outcomes included composites of memory, executive functioning, and processing speed, as well as Mini-Mental State Examination total scores. Longitudinal mixed-effects models were used, controlling for age, sex, education, and total intracranial volume, as appropriate.
resultsTNF-α concentrations significantly increased over time (p < .001). Linear increases in within-person TNF-α were longitudinally associated with declines in gray matter volume (p < .001) and increases in white matter hyperintensities (p = .003). Exploratory analyses suggested that the relation between TNF-α and gray matter volume was curvilinear (TNF-α 2p = .002), such that initial increases in inflammation were associated with more precipitous atrophy. There was a negative linear relationship of within-person changes in TNF-α to Mini-Mental State Examination scores over time (p = .036) but not the cognitive composites (all ps >.05).
conclusionSystemic inflammation, as indexed by plasma TNF-α, holds potential as a biomarker for age-related declines in brain health.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.