Evidence map›Paper›PMID 9317021›Full record

ArticleInfection and immunity1997

Enhancement of neutrophil-mediated killing of Plasmodium falciparum asexual blood forms by fatty acids: importance of fatty acid structure.

L M Kumaratilake, A Ferrante, B S Robinson, T Jaeger, A Poulos

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Infection and immunity, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. In Vitro Effect onMolecules (Basel, Switzerland) · 2023
    Article
  3. Review
  4. Article
  5. Mediterranean Diet: Lipids, Inflammation, and Malaria Infection.International journal of molecular sciences · 2020
    Review
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  7. Article
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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

5 authors at 2 institutions in 1 country.

L M KumaratilakeDepartment of Immunology, University of Adelaide, Women's and Children's Hospital, South Australia. lkumarat@medicine.adelaide.edu.au
A Ferrante
B S Robinson
T Jaeger
A Poulos
University of Adelaide · AUWomen's and Children's Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Effects of fatty acids on human neutrophil-mediated killing of Plasmodium falciparum asexual blood forms were investigated by using a quantitative radiometric assay. The results showed that the antiparasitic activity of neutrophils can be greatly increased (>threefold) by short-term treatment with fatty acids with 20 to 24 carbon atoms and at least three double bonds. In particular, the n-3 polyenoic fatty acids, eicosapentaenoic and docosahexaenoic acids, and the n-6 fatty acid, arachidonic acid, significantly enhanced neutrophil antiparasitic activity. This effect was >1.5-fold higher than that induced by an optical concentration of the known agonist cytokine tumor necrosis factor alpha (TNF-alpha). At suboptimal concentrations, the combination of arachidonic acid and TNF-alpha caused a synergistic increase in neutrophil-mediated parasite killing. The fatty acid-induced effect was independent of the availability of serum opsonins but dependent on the structure of the fatty acids. The length of the carbon chain, degree of unsaturation, and availability of a free carboxyl group were important determinants of fatty acid activity. The fatty acids which increased neutrophil-mediated killing primed the enhanced superoxide radical generation of neutrophils in response to P. falciparum as detected by chemiluminescence. Scavengers of oxygen radicals significantly reduced the fatty acid-enhanced parasite killing, but cyclooxygenase and lipoxygenase inhibitors had no effect. These findings have identified a new class of immunoenhancers that could be exploited to increase resistance against Plasmodium species.

Indexed as

Adjuvants, ImmunologicAnimalsBloodCyclooxygenase InhibitorsDrug InteractionsFatty AcidsFree Radical ScavengersHumansLipoxygenase InhibitorsNeutrophil ActivationOpsonin ProteinsPhagocytosisPlasmodium falciparumRespiratory BurstStructure-Activity RelationshipTumor Necrosis Factor-alphaAdjuvants, ImmunologicCyclooxygenase InhibitorsFatty AcidsFree Radical ScavengersLipoxygenase InhibitorsOpsonin ProteinsTumor Necrosis Factor-alpha

Identifiers

PMID9317021
PMCPMC175597
OpenAlexW2097704477

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.