Evidence map›Paper›PMID 23875052›Full record

ArticlePLoS neglected tropical diseases2013

rKLO8, a novel Leishmania donovani - derived recombinant immunodominant protein for sensitive detection of visceral leishmaniasis in Sudan.

Elfadil Abass, Nadine Bollig, Katharina Reinhard, Bärbel Camara, Durria Mansour, Alexander Visekruna, Michael Lohoff, Ulrich Steinhoff

Open access · goldAbstract readComparative StudyEvaluation Study
In one paragraph

Article in PLoS neglected tropical diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 4 pooled it
4.6field-weighted citation impact, top 6% 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

31 citing papers in PubMed, 4 syntheses or guidelines pooled it, 65 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

8 authors at 2 institutions in 2 countries.

Elfadil AbassInstitute for Medical Microbiology and Hygiene, University of Marburg, Marburg, Germany.
Nadine Bollig
Katharina Reinhard
Bärbel Camara
Durria Mansour
Alexander Visekruna
Michael Lohoff
Ulrich Steinhoff
Philipps University of Marburg · DEAhfad University for Women · SD

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFor effective control of visceral leishmaniasis (VL) in East Africa, new rapid diagnostic tests are required to replace current tests with low sensitivity. The aim of this study is to improve diagnosis of VL in East Africa by testing a new antigen from an autochthonous L. donovani strain in Sudan. METHODOLOGY AND PRINCIPLE

findingsWe cloned, expressed and purified a novel recombinant protein antigen of L. donovani from Sudan, designated rKLO8, that contains putative conserved domains with significant similarity to the immunodominant kinesin proteins of Leishmania. rKLO8 exhibited 93% and 88% amino acid identity with cloned kinesin proteins of L. infantum (synonymous L. chagasi) (K39) and L. donovani (KE16), respectively. We evaluated the diagnostic efficiency of the recombinant protein in ELISA for specific detection of VL patients from Sudan. Data were compared with a rK39 ELISA and two commercial kits, the rK39 strip test and the direct agglutination test (DAT). Of 106 parasitologically confirmed VL sera, 104 (98.1%) were tested positive by rKLO8 as compared to 102 (96.2%) by rK39. Importantly, the patients' sera showed increased reactivity with rKLO8 than rK39. Specificity was 96.1% and 94.8% for rKLO8- and rK39 ELISAs, respectively. DAT showed 100% specificity and 94.3% sensitivity while rK39 strip test performed with 81.1% sensitivity and 98.7% specificity.

conclusionThe increased reactivity of Sudanese VL sera with the rKLO8 makes this antigen a potential candidate for diagnosis of visceral leishmaniasis in Sudan. However, the suitability at the field level will depend on its performance in a rapid test format.

Indexed as

Antigens, ProtozoanProtozoan ProteinsAgglutination TestsAntibodies, ProtozoanDiagnostic Tests, RoutineDNA, ProtozoanEnzyme-Linked Immunosorbent AssayHumansLeishmania donovaniLeishmaniasis, VisceralMolecular Sequence DataRecombinant ProteinsSensitivity and SpecificitySequence Analysis, DNASudanAntibodies, ProtozoanAntigens, ProtozoanDNA, ProtozoanProtozoan ProteinsRecombinant Proteins

Identifiers

PMID23875052
PMCPMC3715527
OpenAlexW1994742691

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LicenceCC BY
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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.