Evidence map›Paper›PMID 22290142›Full record

ArticleInfection and immunity2012

Association between the haptoglobin and heme oxygenase 1 genetic profiles and soluble CD163 in susceptibility to and severity of human malaria.

Vitor R R Mendonça, Nívea F Luz, Nadja J G Santos, Valéria M Borges, Marilda S Gonçalves, Bruno B Andrade, Manoel Barral-Netto

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 3 pooled it
3.5field-weighted citation impact, top 6% 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

47 citing papers in PubMed, 3 syntheses or guidelines pooled it, 72 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. The Role of Heme Oxygenase-1 Promoter Polymorphisms in Perinatal Disease.International journal of environmental research and public health · 2021
    Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Histidine-rich protein II nanoparticle delivery of heme iron load drives endothelial inflammation in cerebral malaria.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  10. Forward Genetics in Apicomplexa Biology: The Host Side of the Story.Frontiers in cellular and infection microbiology · 2022
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Liver Function Test Abnormalities in Experimental and ClinicalThe American journal of tropical medicine and hygiene · 2020
    Article
  18. Targeting of CD163International journal of molecular sciences · 2020
    Review
  19. Review
  20. 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

7 authors at 3 institutions in 2 countries.

Vitor R R MendonçaCentro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazila.
Nívea F Luz
Nadja J G Santos
Valéria M Borges
Marilda S Gonçalves
Bruno B Andrade
Manoel Barral-Netto
Universidade Federal da Bahia · BRFundação Oswaldo Cruz · BRNational Institute of Allergy and Infectious Diseases · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intravascular hemolysis is a hallmark event in the immunopathology of malaria that results in increased systemic concentrations of free hemoglobin (Hb). The oxidation of Hb by free radicals causes the release of heme, which amplifies inflammation. To circumvent the detrimental effects of free heme, hosts have developed several homeostatic mechanisms, including the enzyme haptoglobin (Hp), which scavenges cell-free Hb, the monocyte receptor CD163, which binds to Hb-Hp complexes, and heme oxygenase-1 (HO-1), which degrades intracellular free heme. We tested the association between these three main components of the host response to hemolysis and susceptibility to malaria in a Brazilian population. The genetic profiles of the HMOX1 and Hp genes and the plasma levels of a serum inflammatory marker, the soluble form of the CD163 receptor (sCD163), were studied in 264 subjects, including 78 individuals with symptomatic malaria, 106 individuals with asymptomatic malaria, and 80 uninfected individuals. We found that long (GT)n repeats in the microsatellite polymorphism region of the HMOX1 gene, the Hp2 allele, and the Hp2.2 genotype were associated with symptomatic malaria. Moreover, increased plasma concentrations of heme, Hp, HO-1, and sCD163 were associated with susceptibility to malaria. The validation of these results could support the development of targeted therapies and aid in reducing the severity of malaria.

Indexed as

AdultAllelesAntigens, CDAntigens, Differentiation, MyelomonocyticBrazilCD163 AntigenDisease SusceptibilityFemaleHaptoglobinsHemeHeme Oxygenase-1HemoglobinsHumansMalariaMaleMicrosatellite RepeatsAntigens, CDAntigens, Differentiation, MyelomonocyticCD163 AntigenHaptoglobinsHemeHeme Oxygenase-1HemoglobinsHMOX1 protein, humanHP protein, humanReceptors, Cell Surface

Identifiers

PMID22290142
PMCPMC3318432
OpenAlexW2119518940

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.