Evidence map›Paper›PMID 35470505›Full record

ArticleEnvironmental and molecular mutagenesis2022

In vitro relationships of galactic cosmic radiation and epigenetic clocks in human bronchial epithelial cells.

Jamaji C Nwanaji-Enwerem, Philippe Boileau, Jonathan M Galazka, Andres Cardenas

Open access · greenAbstract read
In one paragraph

Article in Environmental and molecular mutagenesis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 39% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

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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

4 authors at 4 institutions in 1 country.

Jamaji C Nwanaji-EnweremGangarosa Department of Environmental Health, Emory Rollins School of Public Health, and Department of Emergency Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.ORCID 0000-0003-0356-4867
Philippe BoileauGraduate Group in Biostatistics and Center for Computational Biology, University of California, Berkeley, California, USA.
Jonathan M GalazkaNASA Ames Research Center, Moffett Field, California, United States.
Andres CardenasDivision of Environmental Health Sciences, School of Public Health and Center for Computational Biology, University of California, Berkeley, California, USA.
Ames Research Center · USCenter for Environmental Health · USEmory University · USUniversity of California, Berkeley · US

Funding

PRENATAL AND POSTNATAL EXPOSURE TO ENVIRONMENTAL MIXTURES: NEURODEVELOPMENT AND DNA METHYLATION BIOMARKERSR01ES031259 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI CARDENAS, ANDRES · 2020 to 2024
$1.9M
Early life influences on Epigenetic Aging in Mexican-American childrenR03AG067064 · NIA · UNIVERSITY OF CALIFORNIA BERKELEY · PI HOLLAND, NINA T · 2020 to 2021
$159k
NIA NIH HHS R03 AG067064NIEHS NIH HHS R01 ES031259
6 · The paper itself

Abstract

Ionizing radiation is a well-appreciated health risk, precipitant of DNA damage, and contributor to DNA methylation variability. Nevertheless, relationships of ionizing radiation with DNA methylation-based markers of biological age (i.e. epigenetic clocks) remain poorly understood. Using existing data from human bronchial epithelial cells, we examined in vitro relationships of three epigenetic clock measures (Horvath DNAmAge, MiAge, and epiTOC2) with galactic cosmic radiation (GCR), which is particularly hazardous due to its high linear energy transfer (LET) heavy-ion components. High-LET 56Fe was significantly associated with accelerations in epiTOC2 (β = 192 cell divisions, 95% CI: 71, 313, p-value = .003). We also observed a significant, positive interaction of 56Fe ions and time-in-culture with epiTOC2 (95% CI: 42, 441, p-value = .019). However, only the direct 56Fe ion association remained statistically significant after adjusting for multiple hypothesis testing. Epigenetic clocks were not significantly associated with high-LET 28Si and low-LET X-rays. Our results demonstrate sensitivities of specific epigenetic clock measures to certain forms of GCR. These findings suggest that epigenetic clocks may have some utility for monitoring and better understanding the health impacts of GCR.

Indexed as

Cosmic RadiationEpigenesis, GeneticEpigenomicsEpithelial CellsHumansLinear Energy TransferDNA methylationepigenetic ageFemitotic clockradiationSiX-ray

Identifiers

PMID35470505
PMCPMC9233067
OpenAlexW4224885912

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.