Evidence map›Paper›PMID 25251033›Full record

ArticleMarine drugs2014

A new cytotoxicity assay for brevetoxins using fluorescence microscopy.

Jennifer R McCall, Elizabeth A Elliott, Andrea J Bourdelais

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 16 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

3 authors at 1 institution in 1 country.

Jennifer R McCallUNCW Center for Marine Science, 5600 Marvin K Moss Lane, Wilmington, NC 28409, USA. mccalljr@uncw.edu.
Elizabeth A ElliottUNCW Center for Marine Science, 5600 Marvin K Moss Lane, Wilmington, NC 28409, USA. elliotte@uncw.edu.
Andrea J BourdelaisUNCW Center for Marine Science, 5600 Marvin K Moss Lane, Wilmington, NC 28409, USA. bourdelaisa@uncw.edu.
University of North Carolina Wilmington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brevetoxins are a family of ladder-framed polyether toxins produced during blooms of the marine dinoflagellate, Karenia brevis. Consumption of shellfish or finfish exposed to brevetoxins can lead to the development of neurotoxic shellfish poisoning. The toxic effects of brevetoxins are believed to be due to the activation of voltage-sensitive sodium channels in cell membranes. The traditional cytotoxicity assay for detection of brevetoxins uses the Neuro-2A cell line, which must first be treated with the neurotoxins, ouabain and veratridine, in order to become sensitive to brevetoxins. In this study, we demonstrate several drawbacks of the Neuro-2A assay, which include variability for the EC50 values for brevetoxin and non-linear triphasic dose response curves. Ouabain/ veratridine-treated Neuro-2A cells do not show a typical sigmoidal dose response curve in response to brevetoxin, but rather, have a polynomial shaped curve, which makes calculating EC50 values highly variable. We describe a new fluorescence live cell imaging model, which allows for accurate calculation of cytotoxicity via nuclear staining and additional measurement of other viability parameters depending on which aspect of the cell is stained. In addition, the SJCRH30 cell line shows promise as an alternative to Neuro-2A cells for testing brevetoxins without the need for ouabain and veratridine.

Indexed as

AnimalsAntineoplastic AgentsApoptosisCardiotonic AgentsCell LineCell Line, TumorCell SurvivalDinoflagellidaDose-Response Relationship, DrugHumansMarine ToxinsMiceMicroscopy, FluorescenceOuabainOxocinsPolyether ToxinsAntineoplastic AgentsbrevetoxinCardiotonic AgentsMarine ToxinsOuabainOxocinsPolyether ToxinsVeratridine

Identifiers

PMID25251033
PMCPMC4178485
OpenAlexW2084459300

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.