Evidence map›Paper›PMID 29517845›Full record

ArticleAging cell2018

Major features of immunesenescence, including reduced thymic output, are ameliorated by high levels of physical activity in adulthood.

Niharika Arora Duggal, Ross D Pollock, Norman R Lazarus, Stephen Harridge, Janet M Lord

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Aging cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 161 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
161citing papers in PubMed, 6 pooled it
20.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

NCT06540287 recruitingnot on this mapstarted 2024, after this paper: background citation

An Observational Study of Aging Biomarkers in Older Elite Athletes Compared to Non-exercising Healthy Older Adults.

TypeobservationalSponsorBuck Institute for Research on AgingRan2024 to 2027Enrolled80ConditionsAgingArmsObservational
NCT06953648 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

Remotely Monitored, Mobile Health-supported, High Intensity Interval Training Before Hematopoietic Stem Cell Transplantation (REMM-HIIT-HCT)

TypeinterventionalSponsorUniversity of Kansas Medical CenterRan2025 to 2030Enrolled126ConditionsHematopoietic Stem Cell Transplantation, Cardiorespiratory FitnessArmsHigh Intensity Interval Training
3 · Its place in the literature

Who cites it

161 citing papers in PubMed, 6 syntheses or guidelines pooled it, 249 citations in OpenAlex.

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  10. Article
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  13. Risk Factors for Secondary Immunodeficiency in the Aged.The journal of allergy and clinical immunology. In practice · 2026
    Review
  14. CD31Physiological reports · 2026
    Article
  15. Article
  16. Review
  17. Repurposing niclosamide to mitigate inflammaging: a review of multi-target mechanisms in cellular senescence and age-related decline.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  18. Article
  19. Lifelong Exercise as a Modulator of CD4European journal of clinical investigation · 2026
    Review
  20. Review

101 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Niharika Arora DuggalMRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
Ross D PollockCentre of Human and Aerospace Physiological Sciences, King's College London, London, UK.
Norman R LazarusCentre of Human and Aerospace Physiological Sciences, King's College London, London, UK.
Stephen HarridgeCentre of Human and Aerospace Physiological Sciences, King's College London, London, UK.
Janet M LordMRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
King's College London · GBNIHR Surgical Reconstruction and Microbiology Research Centre · GBVersus Arthritis · GB

Funding

Medical Research Council MR/K00414X/1Medical Research Council MR/P021220/1
6 · The paper itself

Abstract

It is widely accepted that aging is accompanied by remodelling of the immune system including thymic atrophy and increased frequency of senescent T cells, leading to immune compromise. However, physical activity, which influences immunity but declines dramatically with age, is not considered in this literature. We assessed immune profiles in 125 adults (55-79 years) who had maintained a high level of physical activity (cycling) for much of their adult lives, 75 age-matched older adults and 55 young adults not involved in regular exercise. The frequency of naïve T cells and recent thymic emigrants (RTE) were both higher in cyclists compared with inactive elders, and RTE frequency in cyclists was no different to young adults. Compared with their less active counterparts, the cyclists had significantly higher serum levels of the thymoprotective cytokine IL-7 and lower IL-6, which promotes thymic atrophy. Cyclists also showed additional evidence of reduced immunesenescence, namely lower Th17 polarization and higher B regulatory cell frequency than inactive elders. Physical activity did not protect against all aspects of immunesenescence: CD28

Indexed as

ExerciseFemaleHumansMaleThymus Glandimmunesenescenceinflammationinterleukin-7physical activitythymic output

Identifiers

PMID29517845
PMCPMC5847865
OpenAlexW2790139034

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.