Evidence map›Paper›PMID 25552955›Full record

ArticleDose-response : a publication of International Hormesis Society2014

Does the number of irradiated cells influence the spatial distribution of bystander effects?

A Belchior, I Balásházy, O Monteiro Gil, P Vaz, P Almeida

Abstract read
In one paragraph

Article in Dose-response : a publication of International Hormesis Society, 2014. 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
–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

4 citing papers in PubMed.

  1. Review
  2. Article
  3. Internal microdosimetry of alpha-emitting radionuclides.Radiation and environmental biophysics · 2020
    Review
  4. 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

5 authors.

A BelchiorIST/CTN, Instituto Superior Técnico, Universidade Técnica de Lisboa, Portugal and Universidade de Lisboa, Instituto de Biofísica e Engenharia Biomédica (IBEB), Portugal.
I BalásházyEnvirionmental Physics Department, Hungarian Academy of Sciences Center for Energy Research, Hungary.
O Monteiro GilIST/CTN, Instituto Superior Técnico, Universidade Técnica de Lisboa, Portugal.
P VazIST/CTN, Instituto Superior Técnico, Universidade Técnica de Lisboa, Portugal.
P AlmeidaUniversidade de Lisboa, Instituto de Biofísica e Engenharia Biomédica (IBEB), Portugal.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is growing evidence that the radiation effects at low doses are not adequately described by a simple linear extrapolation from high doses, due, among others, to bystander effects. Though several studies have been published on this topic, the explanation of the mechanisms describing the bystander effects remains unclear. This study aims at understanding how the bystander signals are or can be propagated in the cell culture, namely if the number of irradiated cells influences the bystander response. An A549 cell line was exposed to several doses of α-particles, being the bystander response quantified in two non-irradiated areas. The radius of irradiated areas differs by a factor of 2, and the non-irradiated areas were optimally designed to have the same number of cells. Our results show evidence for bystander effects occurring in cells far away from the irradiated ones, meaning that bystander signals can easily spread throughout the cell culture. Additionally, our study highlights that the damage caused by radiation on the surrounding of irradiated areas could be different according to the number of irradiated cells, i.e., for the same dose value; the overall cellular damage could be different.

Indexed as

A549 cellsalpha-radiationbystander effectsLow dosespatial distribution

Identifiers

PMID25552955
PMCPMC4267447

What OpenQuestion holds

Textmetadata
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.