ArticleiScience2023
Impact of peripheral mitochondrial DNA level on immune response after COVID-19 vaccination.
Article in iScience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Association of Mitochondrial DNA Levels in Peripheral Blood Leukocytes With Physical Performance in Older Adults.Geriatrics & gerontology international · 2026Article
- Simulated Microgravity Recapitulates Aspects of Biological Aging in Humans.bioRxiv : the preprint server for biology · 2026Article
- FNDC5/Irisin-dependent renoprotection of resistance training in myocardial infarction-induced Type 2 cardiorenal syndrome.PloS one · 2026Article
- Cytosolic nucleic acid sensing as driver of critical illness: mechanisms and advances in therapy.Signal transduction and targeted therapy · 2025Review
- Host mitochondria: more than an organelle in SARS-CoV-2 infection.Frontiers in cellular and infection microbiology · 2023Review
- Comparison of plasma mitochondrial DNA copy number in asymptomatic and symptomatic COVID-19 patients.Frontiers in microbiology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The efficacy of vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the elderly is partially hindered by immunosenescence, resulting from decreased mtDNA levels. This study evaluated the correlation between mtDNA levels in peripheral leukocytes and immune response to the SARS-CoV-2 vaccine. Two hundred ten participants (median age 79.5 years), including 83 frail residents/inpatients and 70 robust outpatients, were analyzed. Anti-spike IgG antibody (IgG(S)) titers were serially measured from before the first vaccination to after the third vaccination. The mtDNA levels and cell-mediated immunity were measured in 45 elderly and 22 elderly individuals two months after the third vaccination. The robust group had consistently higher IgG(S) titers than the frail group. The mtDNA levels positively correlated with IgG(S) titers, as well as with cell-mediated immunity. These findings suggest that mtDNA levels positively impact vaccine-induced immunity. Further studies into maintaining mtDNA levels may provide insights into immunosenescence in the elderly.
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What OpenQuestion holds
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.