Evidence map›Paper›PMID 25147735›Full record

ArticleJournal of nutrition and metabolism2014

Reliability of a Fully Automated Interpretation of γ -H2AX Foci in Lymphocytes of Moderately Trained Subjects under Resting Conditions.

Juliane Heydenreich, Christoph Otto, Frank Mayer, Anja Carlsohn

Abstract read
In one paragraph

Article in Journal of nutrition and metabolism, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Article
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.

Juliane HeydenreichSports Medicine and Sports Orthopaedics, University Outpatient Clinic, University of Potsdam, 14469 Potsdam, Germany ; ZIEL-Research Centre for Nutrition and Food Sciences, Munich Technical University, 85354 Freising-Weihenstephan, Germany.ORCID 0000-0002-7346-4872
Christoph OttoSports Medicine and Sports Orthopaedics, University Outpatient Clinic, University of Potsdam, 14469 Potsdam, Germany.ORCID 0000-0001-7004-1594
Frank MayerSports Medicine and Sports Orthopaedics, University Outpatient Clinic, University of Potsdam, 14469 Potsdam, Germany.ORCID 0000-0003-0101-2858
Anja CarlsohnSports Medicine and Sports Orthopaedics, University Outpatient Clinic, University of Potsdam, 14469 Potsdam, Germany ; Institute of Health Science, Schwäbisch Gmünd University of Education, 73529 Schwäbisch Gmünd, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background. Analysis of γ-H2AX foci is a promising approach to evaluate exercise-induced DNA damage. However, baseline levels and day-to-day variability of γ-H2AX foci have not been investigated in healthy subjects at rest. Methods. Blood was taken from eight moderately trained healthy males (29 ± 3 yrs, 1.84 ± 0.03 m, and 85 ± 6 kg) at two separate days (M1/M2) after 24-hour exercise cessation. Number of γ-H2AX foci per 100 lymphocytes (N), number of foci per affected lymphocyte (NAL), percentage of affected lymphocytes (PAL), and diameter (D) of γ-H2AX foci were analyzed (mean ± SD). Differences between M1 and M2 were analyzed using paired t-tests (α = 0.05). Day-to-day variability was evaluated by calculating the coefficients of variation (CV%), bias, and limits of agreement (LoA). Results. There were no statistically significant differences between M1 (N: 7.6 ± 4.4, NAL: 1.2 ± 0.2, PAL: 5.9 ± 2.6%, and D: 0.63 ± 0.07) and M2 (N: 8.4 ± 4.6, NAL: 1.3 ± 0.1, PAL: 6.9 ± 4.2%, and D: 0.66 ± 0.06). CV was calculated to be 98.5% (N), 88.9% (PAL), 11.3% (NAL), and 8.0% (D). Bias (LoA) was 0.75 (-15.2/13.7), -0.02 (-0.36/0.33), -1.0 (-11.9/9.9), and -0.04 (-0.16/0.09), respectively. Conclusions. Background level in healthy subjects is approximately 0.07 to 0.09 γ-H2AX foci/cell. NAL and D are reliable measures.

Identifiers

PMID25147735
PMCPMC4132490

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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.