Evidence map›Paper›PMID 23755882›Full record

ArticleEnvironmental science & technology2013

Performance characteristics of qPCR assays targeting human- and ruminant-associated bacteroidetes for microbial source tracking across sixteen countries on six continents.

Georg H Reischer, James E Ebdon, Johanna M Bauer, Nathalie Schuster, Warish Ahmed, Johan Aström, Anicet R Blanch, Günter Blöschl, Denis Byamukama, Tricia Coakley and 16 more

Abstract read
In one paragraph

Article in Environmental science & technology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

49 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

26 authors.

Georg H ReischerResearch Group Environmental Microbiology and Molecular Ecology, Research Division Biotechnology and Microbiology, Institute of Chemical Engineering, Vienna University of Technology, Vienna, Austria. reischer@mail.tuwien.ac.at
James E Ebdon
Johanna M Bauer
Nathalie Schuster
Warish Ahmed
Johan Aström
Anicet R Blanch
Günter Blöschl
Denis Byamukama
Tricia Coakley
Christobel Ferguson
Goraw Goshu
Gwangpyo Ko
Ana Maria de Roda Husman
Douglas Mushi
Ramiro Poma
Bandana Pradhan
Veronica Rajal
Margit A Schade
Regina Sommer
Huw Taylor
Erika M Toth
Virgil Vrajmasu
Stefan Wuertz
Robert L Mach
Andreas H Farnleitner

Funding

Austrian Science Fund FWF P 22032
6 · The paper itself

Abstract

Numerous quantitative PCR assays for microbial fecal source tracking (MST) have been developed and evaluated in recent years. Widespread application has been hindered by a lack of knowledge regarding the geographical stability and hence applicability of such methods beyond the regional level. This study assessed the performance of five previously reported quantitative PCR assays targeting human-, cattle-, or ruminant-associated Bacteroidetes populations on 280 human and animal fecal samples from 16 countries across six continents. The tested cattle-associated markers were shown to be ruminant-associated. The quantitative distributions of marker concentrations in target and nontarget samples proved to be essential for the assessment of assay performance and were used to establish a new metric for quantitative source-specificity. In general, this study demonstrates that stable target populations required for marker-based MST occur around the globe. Ruminant-associated marker concentrations were strongly correlated with total intestinal Bacteroidetes populations and with each other, indicating that the detected ruminant-associated populations seem to be part of the intestinal core microbiome of ruminants worldwide. Consequently tested ruminant-targeted assays appear to be suitable quantitative MST tools beyond the regional level while the targeted human-associated populations seem to be less prevalent and stable, suggesting potential for improvements in human-targeted methods.

Indexed as

AnimalsBacteroidetesFecesHumansInternationalityPolymerase Chain ReactionRuminants

Identifiers

PMID23755882
PMCPMC3737603

What OpenQuestion holds

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Registered trials

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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.