Evidence map›Paper›PMID 39747272›Full record

ArticleScientific reports2025

Impact of Exon 1 polymorphism in the MBL2 gene on MBL serum levels and infection susceptibility in acute lymphoid leukemia.

Leonardo Calheiros de Oliveira, Paulo Henrique Rodrigues de Souza, Anderson Nogueira Barbosa, Luma Silva Mineiro, Gemilson Soares Pontes

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Leonardo Calheiros de OliveiraPostgraduate Program in Sciences Applied to Hematology, State University of Amazonas, Av. Djalma Batista, 3578-Flores, Manaus, AM, Brazil.
Paulo Henrique Rodrigues de SouzaPostgraduate Program in Sciences Applied to Hematology, State University of Amazonas, Av. Djalma Batista, 3578-Flores, Manaus, AM, Brazil.
Anderson Nogueira BarbosaSociety, Environment and Health Coordination, Virology and Immunology Laboratory, National Amazon Research Institute, Av. André Araújo, 2.936-Petrópolis, Manaus, AM, Brazil.
Luma Silva MineiroPostgraduate Program in Sciences Applied to Hematology, State University of Amazonas, Av. Djalma Batista, 3578-Flores, Manaus, AM, Brazil.
Gemilson Soares PontesPostgraduate Program in Sciences Applied to Hematology, State University of Amazonas, Av. Djalma Batista, 3578-Flores, Manaus, AM, Brazil. gemilson.pontes@inpa.gov.br.

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Finance code PROCAD AMAZÔNIA 88881.200581/201801
6 · The paper itself

Abstract

Polymorphisms in the MBL2 gene exon 1 can decrease serum levels of mannose-binding lectin (MBL), increasing the risk of infection in immunocompromised individuals. This study evaluated the association between the polymorphism in exon 1 of the MBL2 gene, genotypes, serum MBL levels, and infection in 122 patients with acute lymphoid leukemia (ALL). The MBL*A allele exhibited the highest frequency (0.37) within the study population. The MBL*D (0.32) was the predominant variant. The combined frequency of O polymorphic alleles (either B or D) was 0.63. The frequencies of the A/A, A/O and O/O genotypes were 0.13, 0.49 and 0.38, respectively. All patients exhibited consistently low levels of serum MBL, irrespective of their exon 1 genotype. Parasitic infections (n = 103), bacterial (n = 69) and viral (n = 48). A/O genotype (0.49) had higher infection rates, A/A (0.13) had lower rates, and O/O showed increased viral susceptibility (OR: 0.37; 95% CI 0.13-1.06; p = 0.05). Our findings demonstrated that the study population were MBL-deficient, regardless of their MLB2 genotype. Individuals with the A/O genotype had more infections, while those with the O/O genotype appeared more susceptible to viral infections. These findings highlight the impact of MBL levels and genetic variants on infection susceptibility in ALL patients.

Indexed as

InfectionsMannose-Binding LectinPolymorphism, GeneticPrecursor Cell Lymphoblastic Leukemia-LymphomaAdolescentAdultAllelesChildChild, PreschoolDisease SusceptibilityExonsFemaleGenotypeHumansMaleMiddle AgedMannose-Binding LectinMBL2 protein, humanAcute lymphoid leukemiaInfectious diseasesMannose-binding lectinPolymorphismSusceptibility

Identifiers

PMID39747272
PMCPMC11696297

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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.