Evidence map›Paper›PMID 22518013›Full record

ArticleClinical and vaccine immunology : CVI2012

Identification and diagnostic utility of Leishmania infantum proteins found in urine samples from patients with visceral leishmaniasis.

Claudia Abeijon, Suely S Kashino, Fernando O Silva, Dorcas L Costa, Ricardo T Fujiwara, Carlos H N Costa, Antonio Campos-Neto

Open access · diamondAbstract readEvaluation Study
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 18% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Proteomic Analysis of Urine from Patients withTropical medicine and infectious disease · 2022
    Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Development of a Multiplexed Assay for Detection ofJournal of clinical microbiology · 2019
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Novel Antigen Detection Assay to Monitor Therapeutic Efficacy of Visceral Leishmaniasis.The American journal of tropical medicine and hygiene · 2016
    Article
  14. Article
  15. Article
  16. Review
  17. Review
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

7 authors at 2 institutions in 1 country.

Claudia AbeijonDetectoGen Inc., Grafton, Massachusetts, USA.
Suely S Kashino
Fernando O Silva
Dorcas L Costa
Ricardo T Fujiwara
Carlos H N Costa
Antonio Campos-Neto
Universidade Federal do Piauí · BRUniversidade Federal de Minas Gerais · BR

Funding

Antigen Detection Assay for the Diagnosis of Visceral LeismaniasisR43AI084259 · NIAID · DETECTOGEN, INC. · PI ABEIJON, CLAUDIA · 2009 to 2010
$481k
NIAID NIH HHS R43 AI084259NIAID NIH HHS R43AI084259-01
6 · The paper itself

Abstract

Despite the clear need to control visceral leishmaniasis (VL), the existing diagnostic tests have serious shortcomings. Here, we introduce an innovative approach to directly identify Leishmania infantum antigens produced in vivo in humans with VL. We combined reverse-phase high-performance liquid chromatography (RP-HPLC) with mass spectrometry and categorized three distinct L. infantum proteins presumably produced in bone marrow/spleen/liver and excreted in the urine of patients with VL. The genes coding for these proteins (L. infantum iron superoxide dismutase, NCBI accession number XP_001467866.1; L. infantum tryparedoxin, NCBI accession number XP_001466642.1; and L. infantum nuclear transport factor 2, NCBI accession number XP_001463738.1) were cloned, and the recombinant molecules were produced in Escherichia coli. Antibodies to these proteins were produced in rabbits and chickens and were used to develop a capture enzyme-linked immunosorbent assay (ELISA) designed to detect these L. infantum antigens in the urine of VL patients. Specificity of the antibodies was confirmed by a Western blot analysis using both recombinant proteins and whole parasite extract. Importantly, a urinary antigen detection assay assembled with pairs of antibodies specific for each of these antigens identified 17 of 19 patients with VL. These results indicate that an improved antigen detection assay based on L. infantum proteins present in the urine of patients with VL may represent an important new strategy for the development of a specific and accurate diagnostic test that has the potential to both distinguish active VL from asymptomatic infection and serve as an important tool to monitor therapy efficacy.

Indexed as

Antibodies, ProtozoanAdolescentAdultAnimalsAntigens, ProtozoanBlotting, WesternChickensChildChild, PreschoolChromatography, High Pressure LiquidClinical Laboratory TechniquesCloning, MolecularEscherichia coliFemaleHumansLeishmania infantumAntibodies, ProtozoanAntigens, ProtozoanProtozoan Proteins

Identifiers

PMID22518013
PMCPMC3370439
OpenAlexW2098851690

What OpenQuestion holds

Textmetadata
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.