Evidence map›Paper›PMID 23922858›Full record

ArticlePloS one2013

Semen abnormalities, sperm DNA damage and global hypermethylation in health workers occupationally exposed to ionizing radiation.

Dayanidhi Kumar, Sujith Raj Salian, Guruprasad Kalthur, Shubhashree Uppangala, Sandhya Kumari, Srinivas Challapalli, Srinidhi Gururajarao Chandraguthi, Hanumanthappa Krishnamurthy, Navya Jain, Pratap Kumar and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 106 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Occupational Hazards in Cardiac Catheterization Laboratories: Radiation and Beyond-ANMCO Position Paper Update 2026.European heart journal supplements : journal of the European Society of Cardiology · 2026
    Article
  5. Sperm DNA Fragmentation: The Concept and Its Use in Assisted Reproduction.Advances in experimental medicine and biology · 2026
    Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. EACVI survey on radiation exposure in interventional echocardiography.European heart journal. Cardiovascular Imaging · 2024
    Article
  11. Review
  12. Review
  13. Practical guidance to reduce radiation exposure in electrophysiology applying ultra low-dose protocols: a European Heart Rhythm Association review.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Review
  14. Article
  15. Article
  16. The hydrogen storage nanomaterial MgHBiomaterials research · 2022
    Article
  17. Review
  18. Article
  19. Review
  20. Chronic Exposure to Cadmium Induces Differential Methylation in Mice Spermatozoa.Toxicological sciences : an official journal of the Society of Toxicology · 2021
    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

11 authors at 4 institutions in 1 country.

Dayanidhi KumarDivision of Clinical Embryology, Department of Obstetrics & Gynecology, Kasturba Medical College, Manipal University, Manipal, India.
Sujith Raj Salian
Guruprasad Kalthur
Shubhashree Uppangala
Sandhya Kumari
Srinivas Challapalli
Srinidhi Gururajarao Chandraguthi
Hanumanthappa Krishnamurthy
Navya Jain
Pratap Kumar
Satish Kumar Adiga
Kasturba Medical College, Manipal · INManipal Academy of Higher Education · INNational Centre for Biological Sciences · INKasturba Medical College, Mangalore

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCytogenetic studies have demonstrated that low levels of chronic radiation exposure can potentially increase the frequency of chromosomal aberrations and aneuploidy in somatic cells. Epidemiological studies have shown that health workers occupationally exposed to ionizing radiation bear an increased risk of hematological malignancies.

objectivesTo find the influence of occupational radiation exposure on semen characteristics, including genetic and epigenetic integrity of spermatozoa in a chronically exposed population.

methodsThis cross sectional study included 134 male volunteers of which 83 were occupationally exposed to ionizing radiation and 51 were non-exposed control subjects. Semen characteristics, sperm DNA fragmentation, aneuploidy and incidence of global hypermethylation in the spermatozoa were determined and compared between the non-exposed and the exposed group.

resultsDirect comparison of the semen characteristics between the non-exposed and the exposed population revealed significant differences in motility characteristics, viability, and morphological abnormalities (P<0.05-0.0001). Although, the level of sperm DNA fragmentation was significantly higher in the exposed group as compared to the non-exposed group (P<0.05-0.0001), the incidence of sperm aneuploidy was not statistically different between the two groups. However, a significant number of hypermethylated spermatozoa were observed in the exposed group in comparison to non-exposed group (P<0.05).

conclusionsWe provide the first evidence on the detrimental effects of occupational radiation exposure on functional, genetic and epigenetic integrity of sperm in health workers. However, further studies are required to confirm the potential detrimental effects of ionizing radiation in these subjects.

Indexed as

Radiation, IonizingAdultComet AssayDNA DamageDNA FragmentationHumansIn Situ Hybridization, FluorescenceMaleOccupational ExposureSemenSpermatozoa

Identifiers

PMID23922858
PMCPMC3726700
OpenAlexW2036341314

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.