Evidence map›Paper›PMID 31216673›Full record

ArticleBiosensors2019

Noncompetitive Chromogenic Lateral-Flow Immunoassay for Simultaneous Detection of Microcystins and Nodularin.

Sultana Akter, Teemu Kustila, Janne Leivo, Gangatharan Muralitharan, Markus Vehniäinen, Urpo Lamminmäki

Open access · goldAbstract read
In one paragraph

Article in Biosensors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.0field-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

6 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Article
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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 1 institution in 2 countries.

Sultana AkterMolecular Biotechnology and Diagnostics, Department of Biochemistry, University of Turku, FIN-20520 Turku, Finland. sultana.akter@utu.fi.
Teemu KustilaMolecular Biotechnology and Diagnostics, Department of Biochemistry, University of Turku, FIN-20520 Turku, Finland. Teemu.kustila@gmail.com.
Janne LeivoMolecular Biotechnology and Diagnostics, Department of Biochemistry, University of Turku, FIN-20520 Turku, Finland. jpleiv@utu.fi.
Gangatharan MuralitharanMolecular Biotechnology and Diagnostics, Department of Biochemistry, University of Turku, FIN-20520 Turku, Finland. drgm@bdu.ac.in.ORCID 0000-0001-9452-3053
Markus VehniäinenMolecular Biotechnology and Diagnostics, Department of Biochemistry, University of Turku, FIN-20520 Turku, Finland. marvehni@utu.fi.
Urpo LamminmäkiMolecular Biotechnology and Diagnostics, Department of Biochemistry, University of Turku, FIN-20520 Turku, Finland. urplammi@utu.fi.ORCID 0000-0002-6336-1407
University of Turku · FI

Funding

Ministry of Agriculture and Forestry of Finland ESAELY/721/2017Tekes 823/31/2014
6 · The paper itself

Abstract

Cyanobacterial blooms cause local and global health issues by contaminating surface waters. Microcystins and nodularins are cyclic cyanobacterial peptide toxins comprising numerous natural variants. Most of them are potent hepatotoxins, tumor promoters, and at least microcystin-LR is possibly carcinogenic. In drinking water, the World Health Organization (WHO) recommended the provisional guideline value of 1 µg/L for microcystin-LR. For water used for recreational activity, the guidance values for microcystin concentration varies mostly between 4-25 µg/L in different countries. Current immunoassays or lateral flow strips for microcystin/nodularin are based on indirect competitive method, which are generally more prone to sample interference and sometimes hard to interpret compared to two-site immunoassays. Simple, sensitive, and easy to interpret user-friendly methods for first line screening of microcystin/nodularin near water sources are needed for assessment of water quality and safety. We describe the development of a two-site sandwich format lateral-flow assay for the rapid detection of microcystins and nodularin-R. A unique antibody fragment capable of broadly recognizing immunocomplexes consisting of a capture antibody bound to microcystins/nodularin-R was used to develop the simple lateral flow immunoassay. The assay can visually detect the major hepatotoxins (microcystin-LR, -dmLR, -RR, -dmRR, -YR, -LY, -LF -LW, and nodularin-R) at and below the concentration of 4 µg/L. The signal is directly proportional to the concentration of the respective toxin, and the use of alkaline phosphatase activity offers a cost efficient alternative by eliminating the need of toxin conjugates or other labeling system. The easy to interpret assay has the potential to serve as a microcystins/nodularin screening tool for those involved in water quality monitoring such as municipal authorities, researchers, as well as general public concerned of bathing water quality.

Indexed as

Bacterial ToxinsCarcinogensCyanobacteriaEquipment DesignImmunoassayMicrocystinsPeptides, CyclicReagent StripsWaterBacterial ToxinsCarcinogensMicrocystinsnodularinPeptides, CyclicReagent StripsWatercyanotoxinlateral flowmicrocystinnodularinnoncompetitive immunoassay

Identifiers

PMID31216673
PMCPMC6627203
OpenAlexW2950925957

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.