Evidence map›Paper›PMID 29972690›Full record

Trial reportImmunology2018

Evaluation of the immune response against Trypanosoma cruzi cytosolic tryparedoxin peroxidase in human natural infection.

Magalí C Girard, Gonzalo R Acevedo, Lucía López, Micaela S Ossowski, María D Piñeyro, Juan P Grosso, Marisa Fernandez, Yolanda Hernández Vasquez, Carlos Robello, Karina A Gómez

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Immunology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Frontiers in cellular and infection microbiology · 2021
    Article
  5. Frontiers in cellular and infection microbiology · 2020
    Article
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

10 authors at 3 institutions in 2 countries.

Magalí C GirardLaboratorio de Inmunología de las Infecciones por Tripanosomátidos, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina.
Gonzalo R AcevedoLaboratorio de Inmunología de las Infecciones por Tripanosomátidos, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina.
Lucía LópezUnidad de Biología Molecular, Institut Pasteur Montevideo, Montevideo, Uruguay.
Micaela S OssowskiLaboratorio de Inmunología de las Infecciones por Tripanosomátidos, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina.
María D PiñeyroUnidad de Biología Molecular, Institut Pasteur Montevideo, Montevideo, Uruguay.
Juan P GrossoLaboratorio de Insectos Sociales, IFIBYNE-CONICET, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.
Marisa FernandezInstituto Nacional de Parasitología "Doctor Mario Fatala Chabén", Buenos Aires, Argentina.
Yolanda Hernández VasquezInstituto Nacional de Parasitología "Doctor Mario Fatala Chabén", Buenos Aires, Argentina.
Carlos RobelloUnidad de Biología Molecular, Institut Pasteur Montevideo, Montevideo, Uruguay.
Karina A GómezLaboratorio de Inmunología de las Infecciones por Tripanosomátidos, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina.ORCID 0000-0001-8115-667X
Consejo Nacional de Investigaciones Científicas y Técnicas · ARUniversidad de la República de Uruguay · UYInstitut Pasteur de Montevideo · UY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Trypanosoma cruzi, the aetiological agent of Chagas disease, has a highly efficient detoxification system to deal with the oxidative burst imposed by its host. One of the antioxidant enzymes involved is the cytosolic tryparedoxin peroxidase (c-TXNPx), which catalyses the reduction to hydrogen peroxide, small-chain organic hydroperoxides and peroxynitrite. This enzyme is present in all parasite stages, and its overexpression renders parasites more resistant to the oxidative defences of macrophages, favouring parasite survival. This work addressed the study of the specific humoral and cellular immune response triggered by c-TXNPx in human natural infection. Thus, sera and peripheral blood mononuclear cells (PBMC) were collected from chronically infected asymptomatic and cardiac patients, and non-infected individuals. Results showed that levels of IgG antibodies against c-TXNPx were low in sera from individuals across all groups. B-cell epitope prediction limited immunogenicity to a few, small regions on the c-TXNPx sequence. At a cellular level, PBMC from asymptomatic and cardiac patients proliferated and secreted interferon-γ after c-TXNPx stimulation, compared with mock control. However, only proliferation was higher in asymptomatic patients compared with cardiac and non-infected individuals. Furthermore, asymptomatic patients showed an enhanced frequency of CD19

Indexed as

Adaptive ImmunityAdultAgedAntibodies, ProtozoanChagas DiseaseFemaleHumansImmunoglobulin GMaleMiddle AgedPeroxidasesProtozoan ProteinsTrypanosoma cruziAntibodies, ProtozoanImmunoglobulin GPeroxidasesProtozoan Proteinstryparedoxin peroxidaseB-cell epitope predictionchronic Chagas diseaseperoxiredoxinT-cell and B-cell response

Identifiers

PMID29972690
PMCPMC6187205
OpenAlexW2810494147

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.