Evidence map›Paper›PMID 33498948›Full record

ArticleToxins2021

Dose-Response Study of Microcystin Congeners MCLA, MCLR, MCLY, MCRR, and MCYR Administered Orally to Mice.

Neil Chernoff, Donna Hill, Johnsie Lang, Judith Schmid, Amy Farthing, Hwa Huang

Open access · goldAbstract readComparative Study
In one paragraph

Article in Toxins, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

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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 4 institutions in 1 country.

Neil ChernoffCenter for Public Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA.
Donna HillCenter for Public Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA.
Johnsie LangOak Ridge Institute for Science and Education, Oak Ridge, TN 37831, USA.
Judith SchmidCenter for Public Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA.
Amy FarthingOak Ridge Institute for Science and Education, Oak Ridge, TN 37831, USA.
Hwa HuangOak Ridge Institute for Science and Education, Oak Ridge, TN 37831, USA.
Environmental Protection Agency · USOak Ridge Associated Universities · USOak Ridge Institute for Science and EducationResearch Triangle Park Foundation · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microcystins are common freshwater cyanobacterial toxins that affect liver function. The toxicities of five microcystin congeners (microcystin-LA (MCLA), MCLR, MCLY, MCRR, and MCYR) commonly observed in harmful algal blooms (HABs) were evaluated in BALB/c mice after a single oral administration of doses ranging from those that were no observed adverse effect levels (NOAELs) to lowest observed adverse effect levels (LOAELs). Animals were monitored for changes in behavior and appearance, and euthanized 24 h after dosing. Test endpoints included clinical changes, necropsy observations, and serum indicators of hepatic toxicity and general homeostasis. Doses were 0.5-7 mg/kg MCLA, 0.5-11 mg/kg MCLR, 1-7 mg/kg MCLY, 7-22 mg/kg MCRR, and 3-11 mg/kg MCYR. MCLA at 3 mg/kg elevated liver/body weight ratio and liver score, ALT, AST, and GLDH, indicating hepatic toxicity, reduced serum glucose and highly elevated total serum bilirubin. MCLR and MCLY induced similar effects with LOAELs of 5 mg/kg, although a greater extent and severity of effects were observed in MCLR animals. MCRR exposure at 22 mg/kg was associated with reduced serum glucose. MCYR induced scattered liver effects at 7 mg/kg and reduced serum glucose levels at 5 mg/kg. The results indicate significant differences in congener-induced toxicity after microcystin exposure.

Indexed as

Administration, OralAnimalsBilirubinBiomarkersBlood GlucoseChemical and Drug Induced Liver InjuryCyanobacteriaDose-Response Relationship, DrugFemaleHarmful Algal BloomLiverMaleMarine ToxinsMiceMice, Inbred BALB CMicrocystinsBilirubinBiomarkersBlood Glucosecyanoginosin-LAcyanoginosin LRMarine Toxinsmicrocystin LYMicrocystinscyanobacteriacyanotoxinharmful algal bloomhepatic toxicologymicrocystinmouseoral administration

Identifiers

PMID33498948
PMCPMC7911753
OpenAlexW3124656175

What OpenQuestion holds

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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.