Evidence map›Paper›PMID 21216345›Full record

ArticleAquatic toxicology (Amsterdam, Netherlands)2011

Regulation and dysregulation of vitellogenin mRNA accumulation in daphnids (Daphnia magna).

Bethany R Hannas, Ying H Wang, Susanne Thomson, Gwijun Kwon, Hong Li, Gerald A Leblanc

Abstract read
In one paragraph

Article in Aquatic toxicology (Amsterdam, Netherlands), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 103 citations in OpenAlex.

  1. Article
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  5. Pyriproxyfen Contamination inJournal of xenobiotics · 2024
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  11. Review
  12. Article
  13. Article
  14. Article
  15. Developmental and reproductive effects of tamoxifen on Daphnia magna.Environmental monitoring and assessment · 2018
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

6 authors at 1 institution in 1 country.

Bethany R HannasDepartment of Environmental & Molecular Toxicology, North Carolina State University, Raleigh, NC 27695-7633, USA.
Ying H Wang
Susanne Thomson
Gwijun Kwon
Hong Li
Gerald A Leblanc
North Carolina State University · US

Funding

TRAINING IN BIOCHEMICAL AND ENVIRONMENTAL TOXICOLOGYT32ES007046 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI Seth William Kullman · 1985 to 2026
$5.1M
NIEHS NIH HHS T32 ES007046
6 · The paper itself

Abstract

The induction of vitellogenin in oviparous vertebrates has become the gold standard biomarker of exposure to estrogenic chemicals in the environment. This biomarker of estrogen exposure also has been used in arthropods, however, little is known of the factors that regulate the expression of vitellogenin in these organisms. We investigated changes in accumulation of mRNA products of the vitellogenin gene Vtg2 in daphnids (Daphnia magna) exposed to a diverse array of chemicals. We further evaluated the involvement of hormonal factors in the regulation of vitellogenin expression that may be targets of xenobiotic chemicals. Expression of the Vtg2 gene was highly responsive to exposure to various chemicals with an expression range spanning approximately four orders of magnitude. Chemicals causing the greatest induction were piperonyl butoxide, chlordane, 4-nonylphenol, cadmium, and chloroform. Among these, only 4-nonylphenol is recognized to be estrogenic. Exposure to several chemicals also suppressed Vtg2 mRNA levels, as much as 100-fold. Suppressive chemicals included cyproterone acetate, acetone, triclosan, and atrazine. Exposure to the estrogens diethylstilbestrol and bisphenol A had little effect on vitellogenin mRNA levels further substantiating that these genes are not induced by estrogen exposure. Exposure to the potent ecdysteroids 20-hydroxyecdysone and ponasterone A revealed that Vtg2 was subject to strong suppressive control by these hormones. Vtg2 mRNA levels were not significantly affected from exposure to several juvenoid hormones. Results indicate that ecdysteroids are suppressors of vitellogenin gene expression and that vitellogenin mRNA levels can be elevated or suppressed in daphnids by xenobiotics that elicit antiecdysteroidal or ecdysteroidal activity, respectively. Importantly, daphnid Vtg2 is not elevated in response to estrogenic activity.

Indexed as

AnimalsCadmiumDaphniaEcdysteroidsEcdysteroneEnvironmental PollutantsEstrogensGene ExpressionHeterocyclic CompoundsPolycyclic CompoundsRNA, MessengerVitellogeninsXenobioticsCadmiumEcdysteroidsEcdysteroneEnvironmental PollutantsEstrogensHeterocyclic CompoundsPolycyclic CompoundsRNA, MessengerVitellogeninsXenobiotics

Identifiers

PMID21216345
PMCPMC3691678
OpenAlexW2033619888

What OpenQuestion holds

Textmetadata
LicenceTDM
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.