Cited by 167Pneumonia and Respiratory InfectionsInflammation biomarkers and pathwaysImmune Response and Inflammation

Elderly Humans Show Prolonged In Vivo Inflammatory Activity during Pneumococcal Infections

Bruunsgaard, Helle, Skinhøj, Peter, Qvist, Jesper, Pedersen, Bente Klarlund·1999·The Journal of Infectious Diseases

Abstract

Levels of circulating cytokines were measured in 22 hospitalized patients with pneumococcal infections during the first week after admission, to test for age-associated differences. Twenty-two healthy age- and sex-matched subjects were included as controls. Concentrations of tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, IL-6, IL-1 receptor antagonist, soluble TNF receptor I (sTNFR-I), and IL-10 were increased on admission (P<.05), but macrophage inflammatory protein (MIP)-1beta was not. Whereas levels of cytokines were similar on admission, levels of TNF-alpha and sTNFR-I after 1 week were higher (P<.05) in elderly (68-91 years) than in young (37-55 years) patients. Furthermore, plasma levels of IL-10 and sTNFR-I after 1 week were positively correlated with age, and the declines in sTNFR-I and in the TNFalpha/IL-10 ratio from day 0 to day 7 were correlated with age. Thus, aging was associated with prolonged inflammatory activity. This may reflect decreased ability to control the infection or a dysregulated cytokine response.

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Crossref · 10.1086/314873

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14 of 14 references verified0 citation errors · 0 not checkable

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  • Elderly patients exhibit reduced tolerance to systemic inflammation, with increased mortality when compared with younger septic individuals.

    “Further, elderly patients exhibit reduced tolerance to systemic inflammation, with increased mortality when compared with younger septic individuals (146–148).”

    From Aging and Lung Disease (2020) · cites this paper as [148]

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Authors
Bruunsgaard, H., Skinhøj, P., Qvist, J., & Pedersen, B. K.
Affiliations
University of Copenhagen (DK)
Venue
The Journal of Infectious Diseases
Published
1999-08
Volume
180
Issue
2
Pages
551-554
ISSN
  • 0022-1899 (ISSN-L)
  • 1537-6613
OpenAlex
W2119524953
Cited by
167
References
14
Citations by year
2026: 2 · 2025: 3 · 2024: 5 · 2023: 1 · 2022: 4 · 2021: 7 · 2020: 7 · 2019: 10 · 2018: 8 · 2017: 4 · 2016: 5 · 2015: 6 · 2014: 11 · 2013: 3 · 2012: 3
FWCI
5.73
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Infectious Diseases (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Pneumonia and Respiratory Infections
  • Life Sciences › Immunology and Microbiology › Immunology › Inflammation biomarkers and pathways
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
pneumococcal infection, Streptococcus pneumoniae, aging, elderly patients, inflammatory cytokines, TNF-α, soluble TNF receptor 1, IL-10, interleukin-6, IL-1β, macrophage inflammatory protein-1β, cytokine response, dysregulated inflammation
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Female, Humans, Male, Meningitis, Pneumococcal, Middle Aged, Pneumococcal Infections, Pneumonia, Pneumococcal, Streptococcus pneumoniae, Case-Control Studies, Cytokines, Matched-Pair Analysis

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