Evidence map›Paper›PMID 38912968›Full record

ArticleThe Journal of infectious diseases2024

Contrasting Phenotypes of Neutrophils During Asymptomatic Versus Symptomatic Leishmania braziliensis Infection.

Jacilara A Conceição, Pedro P Carneiro, Andreza S Dórea, Walker N Oliveira, Aline C Muniz, Edgar M Carvalho, Mary E Wilson, Olívia Bacellar

Abstract read
In one paragraph

Article in The Journal of infectious diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Lack of Hypoxia Inducible Factor-1α Influences on Macrophages Ability to Deal withJID innovations : skin science from molecules to population health · 2025
    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

8 authors.

Jacilara A ConceiçãoDepartment of Internal Medicine, University of Iowa, Iowa City.ORCID 0000-0002-7014-2894
Pedro P CarneiroServiço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.
Andreza S DóreaServiço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.
Walker N OliveiraServiço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.
Aline C MunizServiço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.
Edgar M CarvalhoInstituto Gonçalo Moniz, Fiocruz Bahia.
Mary E WilsonDepartment of Internal Medicine, University of Iowa, Iowa City.ORCID 0000-0001-8680-7275
Olívia BacellarServiço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.

Funding

The Role of Innate Cells in the Pathogenesis of Leishmania Braziliensis InfectionU01AI088650 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SCOTT, PHILLIP · 2011 to 2019
$4.3M
The Role of Exosomes in the Pathogenesis of LeishmaniasisI01BX000536 · VA · IOWA CITY VA MEDICAL CENTER · PI WILSON, MARY E · 2009 to 2023
–
Innate inflammatory cells in leishmaniasisI01BX001983 · VA · IOWA CITY VA MEDICAL CENTER · PI WILSON, MARY E · 2014 to 2022
–
BLRD VA I01 BX000536BLRD VA I01 BX001983Brazilian Council for Scientific and Technological DevelopmentCoordination for the Improvement of Higher Education PersonnelFAPESBNIAID NIH HHS U01 AI088650NIH HHS AI088650Universal APP0059/2016VA
6 · The paper itself

Abstract

backgroundThe mechanisms that mediate immune protection in individuals with subclinical (SC) or asymptomatic infection with Leishmania braziliensis are largely unknown. Neutrophils (polymorphonuclear leukocytes [PMNs]) have been implicated in progressive symptomatic cutaneous leishmaniasis (CL), but their potential participation in maintenance of subclinical infection is unexplored. The aim of this study was to compare the phenotypic and functional profiles of PMNs in individuals with SC infection versus patients with symptomatic CL due to L braziliensis.

methodsSubjects were recruited in the endemic region of Corte de Pedra, Bahia, Brazil. Surface markers to define activation status were characterized by flow cytometry. Functional responses of PMNs including phagocytic capacity, production of oxidative species, and oxidative killing of intracellular parasites were studied in vitro.

resultsPMNs from individuals with SC infection displayed a more activated phenotype and greater ability to control the infection than PMNs from patients with CL. In contrast, PMNs from patients with CL exhibited higher expression of HLA-DR and higher production of oxidative species than PMNs from subjects with SC infection.

conclusionsPMNs from individuals with SC infection can control the infection more efficiently than PMNs from patients with CL, despite the lower production of oxidants. Our observations suggest that L braziliensis may evade microbicidal mechanisms of PMNs from patients with CL, contributing to parasite dissemination and the establishment of disease.

Indexed as

Leishmania braziliensisLeishmaniasis, CutaneousNeutrophilsPhenotypeAdolescentAdultAsymptomatic InfectionsBrazilFemaleHumansMaleMiddle AgedPhagocytosisReactive Oxygen SpeciesYoung AdultReactive Oxygen Speciescutaneous leishmaniasisLeishmania braziliensisneutrophilPMNssubclinical infection

Identifiers

PMID38912968
PMCPMC11646601

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.