Evidence map›Paper›PMID 22242171›Full record

ArticlePloS one2012

Testing in mice the hypothesis that melanin is protective in malaria infections.

Michael Waisberg, Brandi K Vickers, Stephanie B Yager, Christina K Lin, Susan K Pierce

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 32% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. MRI demonstrates glutamine antagonist-mediated reversal of cerebral malaria pathology in mice.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  7. Glucose metabolism mediates disease tolerance in cerebral malaria.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  8. Review
  9. Targeting glutamine metabolism rescues mice from late-stage cerebral malaria.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  10. Article
  11. Article
  12. 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

5 authors at 2 institutions in 1 country.

Michael WaisbergLaboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America. waisbergm@niaid.nih.gov
Brandi K Vickers
Stephanie B Yager
Christina K Lin
Susan K Pierce
National Institutes of Health · USNational Institute of Allergy and Infectious Diseases · US

Funding

Mali International Center for Excellence in Research: Malaria immunologyZIAAI001064 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI PIERCE, SUSAN · 2009 to 2025
$25.1M
Intramural NIH HHS
6 · The paper itself

Abstract

Malaria has had the largest impact of any infectious disease on shaping the human genome, exerting enormous selective pressure on genes that improve survival in severe malaria infections. Modern humans originated in Africa and lost skin melanization as they migrated to temperate regions of the globe. Although it is well documented that loss of melanization improved cutaneous Vitamin D synthesis, melanin plays an evolutionary ancient role in insect immunity to malaria and in some instances melanin has been implicated to play an immunoregulatory role in vertebrates. Thus, we tested the hypothesis that melanization may be protective in malaria infections using mouse models. Congenic C57BL/6 mice that differed only in the gene encoding tyrosinase, a key enzyme in the synthesis of melanin, showed no difference in the clinical course of infection by Plasmodium yoelii 17XL, that causes severe anemia, Plasmodium berghei ANKA, that causes severe cerebral malaria or Plasmodium chabaudi AS that causes uncomplicated chronic disease. Moreover, neither genetic deficiencies in vitamin D synthesis nor vitamin D supplementation had an effect on survival in cerebral malaria. Taken together, these results indicate that neither melanin nor vitamin D production improve survival in severe malaria.

Indexed as

Models, BiologicalAnimalsChronic DiseaseHumansMalariaMalaria, CerebralMaleMelaninsMiceMice, Inbred C57BLMice, KnockoutParasitemiaPlasmodiumReceptors, CalcitriolVitamin DMelaninsReceptors, CalcitriolVitamin D

Identifiers

PMID22242171
PMCPMC3252320
OpenAlexW2126681180

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.