Evidence map›Paper›PMID 33515713›Full record

ArticleInfection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases2021

Mannose binding lectin gene 2 (rs1800450) missense variant may contribute to development and severity of COVID-19 infection.

Alpay Medetalibeyoglu, Gulistan Bahat, Naci Senkal, Murat Kose, Kader Avci, Gozde Yesil Sayin, Ummuhan Isoglu-Alkac, Tufan Tukek, Sacide Pehlivan

Open access · greenAbstract read
In one paragraph

Article in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
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  8. High productionHeliyon · 2024
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  11. The effect of ACE2 receptor, IFN-γ, and TNF-α polymorphisms on the severity and prognosis of the disease in SARS-CoV-2 infection.Journal of investigative medicine : the official publication of the American Federation for Clinical Research · 2023
    Article
  12. Genetic susceptibility to severe COVID-19.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2023
    Review
  13. Review
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  16. Polymorphisms in theFrontiers in immunology · 2023
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  19. Investigation ofPathogens and global health · 2022
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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

9 authors at 1 institution in 1 country.

Alpay MedetalibeyogluDepartment of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Gulistan BahatDepartment of Internal Medicine, Division of Geriatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey. Electronic address: gbahatozturk@yahoo.com.
Naci SenkalDepartment of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Murat KoseDepartment of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Kader AvciDepartment of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Gozde Yesil SayinDepartment of Medical Genetics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Ummuhan Isoglu-AlkacDepartment of Physiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Tufan TukekDepartment of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Sacide PehlivanDepartment of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Istanbul University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesCOVID-19 followed a mortal course in some young patients without any underlying factors, however, it followed a very benign course in some very older individuals with multiple comorbidities. These observations question if some genetic factors may be related to the vulnerability and poor prognosis of the disease. In this study, we aimed to investigate whether MBL2 gene B variant at codon 54 (rs1800450) were related to the variabilities in clinical course of this infection.

methods284 PCR-confirmed COVID-19 patients and 100 healthy controls were included in the study. COVID-19 patients were subdivided according to the clinical features and clinical characteristics were analyzed. DNAs of all patients and controls were examined for the codon 54 A/B (gly54asp: rs1800450) variation in exon 1 of the MBL2 gene.

resultsIn univariate analysis, BB genotype of MBL2 gene was more common among COVID-19 cases compared with controls (10.9% vs 1.0%, respectively; OR = 12.1, 95%CI = 1.6-90.1, p = 0.001). Multivariate analyses, adjusted for age, sex and MBL genetic variants, revealed that when compared with the COVID-19 patients that had AA genotype (reference), the patients that had BB or AB genotypes suffered from a higher risk for severe disease (for BB genotype, odds ratio (OR) = 5.3, p < 0.001; for AB genotype, OR = 2.9, p = 0.001) and for ICU need (for BB genotype, OR = 19.6, p < 0.001; for AB genotype, OR = 6.9, p = 0.001). On the other hand, there was not any significant difference between the genotype variants in terms of mortality at 28 days or development of secondary bacterial infection.

conclusionThe B variants of MBL2 gene at codon 54, which were associated with lower MBL2 levels, were related to a higher risk for a more severe clinical course of COVID-19 infection in some respects. Our findings may have potential future implications, e.g. for use of MBL protein as potential therapeutics or prioritize the individuals with B variants during vaccination strategies.

Indexed as

Mutation, MissenseAdultAgedAged, 80 and overCase-Control StudiesComorbidityCOVID-19FemaleGenetic Predisposition to DiseaseHumansMaleMannose-Binding LectinMiddle AgedProtein Interaction MapsSARS-CoV-2Severity of Illness IndexMannose-Binding LectinMBL2 protein, humanCOVID-19CytokineGene mutationHyperinflammationMBL2SARS-CoV-2

Identifiers

PMID33515713
PMCPMC7838598
OpenAlexW3123792432

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.