Evidence map›Paper›PMID 26577333›Full record

ArticleParasites & vectors2015

Development of loop-mediated isothermal amplification (LAMP) for simple detection of Leishmania infection.

Chaichontat Sriworarat, Atchara Phumee, Mathirut Mungthin, Saovanee Leelayoova, Padet Siriyasatien

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Parasites & vectors, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 3 pooled it
6.9field-weighted citation impact, top 3% 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

43 citing papers in PubMed, 3 syntheses or guidelines pooled it, 101 citations in OpenAlex.

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  5. Rapid Point-of-Care Detection ofAnimals : an open access journal from MDPI · 2026
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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

5 authors at 4 institutions in 1 country.

Chaichontat SriworaratBangkok Christian College, Bangkok, 10500, Thailand. chaichontat.s@gmail.com.
Atchara PhumeeDepartment of Parasitology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand. amphumee@gmail.com.
Mathirut MungthinDepartment of Parasitology, Phramongkutklao College of Medicine, Bangkok, 10400, Thailand. mathirut@hotmail.com.
Saovanee LeelayoovaDepartment of Parasitology, Phramongkutklao College of Medicine, Bangkok, 10400, Thailand. s_leelayoova@scientist.com.
Padet SiriyasatienDepartment of Parasitology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand. padet.s@chula.ac.th.
Phramongkutklao Hospital · THBangkok Christian Hospital · THChulalongkorn University · THThai Red Cross Society · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeishmaniasis is a neglected tropical disease that is caused by an obligate intracellular protozoan of the genus Leishmania. Recently, an increasing number of autochthonous leishmaniasis cases caused by L. martiniquensis and the novel species L. siamensis have been described in Thailand, rendering an accurate diagnosis of this disease critical. However, only a few laboratories are capable of diagnosing leishmaniasis in Thailand. To expand leishmaniasis diagnostic capabilities, we developed a simple colorimetric loop-mediated isothermal amplification (LAMP) technique for the direct detection of Leishmania DNA.

methodsLAMP was performed for 75 min using four primers targeting the conserved region of the18S ribosomal RNA gene, and the DNA indicator used was malachite green (MG). To simulate crude samples, cultured promastigotes of L. siamensis were mixed with blood or saliva. Also, clinical samples (blood, saliva, and tissue biopsies) were obtained from patients with cutaneous leishmaniasis (CL) and visceral leishmaniasis (VL). All samples were boiled for 10 min and introduced directly into the LAMP reaction mixture without DNA purification.

resultsThe use of MG resulted in an unambiguous differentiation of positive and negative controls. For L. siamensis, the detection limit was 10(3) parasites/mL or 2.5 parasites/tube. Saliva, tissue biopsies, and whole blood were indicative of active Leishmania infection, and their direct usages did not adversely affect the detection limit. In addition, this LAMP assay could detect DNA from multiple Leishmania species other than L. siamensis and L. martiniquensis, including L. aethiopica, L. braziliensis, L. donovani and L. tropica.

conclusionsThe simplicity and sensitivity of LAMP in detecting active Leishmania infection could enable the rapid diagnosis of leishmaniasis, thereby facilitating the survey and control of leishmaniasis in Thailand. However, our limited number of samples warranted a further validation with a larger cohort of patients before this assay could be deployed.

Indexed as

DNA, ProtozoanDNA, RibosomalHumansLeishmaniaLeishmaniasisMolecular Diagnostic TechniquesNucleic Acid Amplification TechniquesRNA, Ribosomal, 18SSensitivity and SpecificityTemperatureThailandDNA, ProtozoanDNA, RibosomalRNA, Ribosomal, 18S

Identifiers

PMID26577333
PMCPMC4650110
OpenAlexW2177590639

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.