Evidence map›Paper›PMID 34313790›Full record

ArticleMutagenesis2022

Validation of the hen's egg test for micronucleus induction (HET-MN): detailed protocol including scoring atlas, historical control data and statistical analysis.

Katrin Maul, Dagmar Fieblinger, Andreas Heppenheimer, Juergen Kreutz, Manfred Liebsch, Andreas Luch, Ralph Pirow, Albrecht Poth, Pamela Strauch, Eva Dony and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Mutagenesis, 2022. 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
0.4field-weighted citation impact, top 46% 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

2 citing papers in PubMed, 6 citations in OpenAlex.

  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

13 authors at 4 institutions in 1 country.

Katrin MaulDepartment of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Dagmar FieblingerDepartment of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Andreas HeppenheimerICCR-Roßdorf GmbH (former: Harlan Cytotest Cell Research, Envigo CRS), Roßdorf, Germany.
Juergen KreutzHenkel AG & Co KGaA, Duesseldorf, Germany.
Manfred LiebschDepartment of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Andreas LuchDepartment of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Ralph PirowDepartment of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Albrecht PothICCR-Roßdorf GmbH (former: Harlan Cytotest Cell Research, Envigo CRS), Roßdorf, Germany.
Pamela StrauchICCR-Roßdorf GmbH (former: Harlan Cytotest Cell Research, Envigo CRS), Roßdorf, Germany.
Eva DonyICCR-Roßdorf GmbH (former: Harlan Cytotest Cell Research, Envigo CRS), Roßdorf, Germany.
Markus SchulzICCR-Roßdorf GmbH (former: Harlan Cytotest Cell Research, Envigo CRS), Roßdorf, Germany.
Thorsten WolfUniversity of Osnabrueck, Osnabrueck,Germany.
Kerstin ReisingerHenkel AG & Co KGaA, Duesseldorf, Germany.
Envigo (Germany) · DEFederal Institute for Risk Assessment · DEHenkel (Germany) · DEOsnabrück University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A validation exercise of the hen's egg test for micronucleus induction was finalised with a very good predictivity based on the analysis of micronuclei in peripheral erythrocytes of fertilised chicken eggs (Reisinger et al. The hen's egg test for micronucleus-induction (HET-MN): validation data set. Mutagenesis, this issue). For transparency reasons this complementary publication provides further details on the assay especially as it was the first validation study in the field of genotoxicity testing involving the use of chicken eggs. Thus, the experimental protocol is described in detail and is complemented by a scoring atlas for microscopic analysis in blood cells. In addition, general characteristics of the test system, which is able to mirror the systemic availability of test compounds, are delineated: the test compound passes the egg membrane and is taken up by the blood vessels of the underlying chorioallantoic membrane. Subsequently, it is distributed by the circulating blood, metabolised by the developing liver and the yolk sac membrane and finally excreted into the allantois, a bladder equivalent. In specific, the suitability of the test system for genotoxicity testing is shown by, inter alia, a low background DNA damage in a comprehensive historical control database. In addition, the state-of-the-art statistical method used to evaluate obtained data is delineated. It combines laboratory-specific effect threshold with the Umbrella-Williams test, a statistical model also of interest for other genotoxicity test methods.

Indexed as

ChickensMutagensAnimalsEggsFemaleMicronucleus TestsMutagenicity TestsMutagens

Identifiers

PMID34313790
PMCPMC9071076
OpenAlexW3186036801

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.