Evidence map›Paper›PMID 32680557›Full record

ArticleParasites & vectors2020

A new protocol for absolute quantification of haemosporidian parasites in raptors and comparison with current assays.

Xi Huang, Di Huang, Yuge Liang, Linlin Zhang, Guocheng Yang, Boye Liu, Yangyang Peng, Wenhong Deng, Lu Dong

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 33 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

9 authors at 2 institutions in 1 country.

Xi HuangCollege of Life Sciences, Beijing Normal University, Beijing, China.
Di HuangCollege of Life Sciences, Beijing Normal University, Beijing, China.
Yuge LiangCollege of Life Sciences, Beijing Normal University, Beijing, China.
Linlin ZhangCollege of Life Sciences, Beijing Normal University, Beijing, China.
Guocheng YangCollege of Life Sciences, Beijing Normal University, Beijing, China.
Boye LiuShaanxi Institute of Zoology, Xi'an, China.
Yangyang PengCollege of Life Sciences, Beijing Normal University, Beijing, China.
Wenhong DengCollege of Life Sciences, Beijing Normal University, Beijing, China. dengwh@bnu.edu.cn.
Lu DongCollege of Life Sciences, Beijing Normal University, Beijing, China. donglu@bnu.edu.cn.ORCID http://orcid.org/0000-0001-9476-3321
Beijing Normal University · CNShaanxi Institute of Zoology · CN

Funding

Fundamental Research Funds for the Central Universities 2019NTST13National Natural Science Foundation of China 31672297National Natural Science Foundation of China 31772444
6 · The paper itself

Abstract

backgroundAccurate quantification of infection intensity is essential to estimate infection patterns of avian haemosporidian parasites in order to understand the evolution of host-parasite associations. Traditional microscopy is cost-effective but requires high-quality blood smears and considerable experience, while the widely used semi-quantitative qPCR methods are mostly employed with ideal, laboratory-based golden samples and standard curves, which may limit the comparison of parasitemia from different laboratories.

methodsHere we present a digital droplet PCR (ddPCR) protocol for absolute quantification of avian haemosporidians in raptors. Novel primers were designed that target a conserved fragment of a rRNA region of the mitochondrial genome of the parasites. Sensitivity and repeatability were evaluated compared to qPCR and other assays.

resultsThis ddPCR assay enables accurate quantification of haemosporidian parasites belonging to Plasmodium, Haemoproteus and Leucocytozoon with minimum infection quantities of 10

conclusionsWe developed a novel ddPCR assay enabling accurate quantification of avian haemosporidians without golden samples or standard curves. This assay can be used as a robust method for investigating infection patterns in different host-parasite assemblages and can facilitate the comparison of results from different laboratories.

Indexed as

AnimalsBird DiseasesBirdsGenes, ProtozoanHaemosporidaPathology, MolecularPlasmodiumRaptorsReal-Time Polymerase Chain ReactionAvian haemosporidiaddPCRInfection intensityqPCRRaptor

Identifiers

PMID32680557
PMCPMC7368712
OpenAlexW3043271198

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.