Evidence map›Paper›PMID 34682920›Full record

ArticleJournal of clinical medicine2021

Effect of Age on Innate and Adaptive Immunity in Hospitalized COVID-19 Patients.

Lamin B Cham, Marie Høst Pahus, Kristoffer Grønhøj, Rikke Olesen, Hien Ngo, Ida Monrad, Mads Kjolby, Martin Tolstrup, Jesper Damsgaard Gunst, Ole S Søgaard

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 33% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Innate immunity to SARS-CoV-2 infection: a review.Epidemiology and infection · 2022
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Analyses of haplotypes ofFrontiers in genetics · 2025
    Article
  7. Article
  8. Review
  9. Review
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

10 authors at 3 institutions in 1 country.

Lamin B ChamDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.ORCID 0000-0002-6855-5657
Marie Høst PahusDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.
Kristoffer GrønhøjDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.ORCID 0000-0001-5603-0872
Rikke OlesenDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.
Hien NgoDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.
Ida MonradDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.
Mads KjolbyDepartment of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark.
Martin TolstrupDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.
Jesper Damsgaard GunstDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.ORCID 0000-0002-3787-0259
Ole S SøgaardDepartment of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark.
Aarhus University · DKAarhus University Hospital · DKSteno Diabetes Centers · DK

Funding

Lundbeck Foundation N/A
6 · The paper itself

Abstract

An effective but balanced cellular and inflammatory immune response may limit the severity of coronavirus disease (COVID-19), whereas uncontrolled inflammation leads to disease progression. Older age is associated with higher risk of COVID-19 and a worse outcome, but the underlying immunological mechanisms for this age-related difference are not clear. We investigated the impact of age on viral replication, inflammation, and innate and adaptive cellular immune responses in 205 hospitalized COVID-19 patients. During the early symptomatic phase of COVID-19, we found that patients above 65 years had significantly higher viral load, higher levels of proinflammatory markers, and inadequate mobilization and activation of monocytes, dendritic cells, natural killer cells, and CD8 T cells compared to those below 65 years. Our study points toward age-related deficiencies in the innate immune cellular response to SARS-CoV-2 as a potential cause of poorly controlled viral replication and inflammation during the early symptom phase and subsequent disease progression.

Indexed as

ageclinical recoveryCOVID-19DCsmonocytesNK cellsSARS-CoV-2T cells

Identifiers

PMID34682920
PMCPMC8538457
OpenAlexW3205984991

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.