Evidence map›Paper›PMID 9743538›Full record

ArticleThe Journal of experimental medicine1998

Plasmodium falciparum produces prostaglandins that are pyrogenic, somnogenic, and immunosuppressive substances in humans.

B Kilunga Kubata, N Eguchi, Y Urade, K Yamashita, T Mitamura, K Tai, O Hayaishi, T Horii

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.9field-weighted citation impact, top 7% 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

33 citing papers in PubMed, 80 citations in OpenAlex.

  1. Article
  2. The intersection of hostMicrobiology and molecular biology reviews : MMBR · 2024
    Review
  3. Parasitic infections: A new frontier for PGDCurrent research in immunology · 2024
    Review
  4. Serum metabolomic profiles in BALB/c mice induced byFrontiers in cellular and infection microbiology · 2023
    Article
  5. Immunosuppression in Malaria: DoPathogens (Basel, Switzerland) · 2021
    Review
  6. Review
  7. Article
  8. Leishmania braziliensis prostaglandin FParasites & vectors · 2020
    Article
  9. Review
  10. Eicosanoid production byVirulence · 2019
    Review
  11. Review
  12. GαThe Journal of experimental medicine · 2019
    Article
  13. PKA and Apicomplexan Parasite Diseases.Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme · 2017
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. The vasculature in chagas disease.Advances in parasitology · 2011
    Review
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

8 authors at 2 institutions in 1 country.

B Kilunga KubataDepartment of Molecular Behavioral Biology, Osaka Bioscience Institute, Japan.
N Eguchi
Y Urade
K Yamashita
T Mitamura
K Tai
O Hayaishi
T Horii
Nippon Kayaku (Japan) · JPOsaka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plasmodium falciparum causes the most severe form of human malaria, which kills approximately 1.5-2.7 million people every year, but the molecular mechanisms underlying the clinical symptoms and the host-parasite interaction remain unclear. We show here that P. falciparum produces prostaglandins (PGs) D2, E2, and F2alpha. After incubation with 1 mM arachidonic acid (AA), cell homogenates of P. falciparum produced PGs as determined by enzyme immunoassay and gas chromatography-selected ion monitoring. PG production in the parasite homogenate was not affected by the nonsteroidal antiinflammatory drugs aspirin and indomethacin, and was partially heat resistant, whereas PG biosynthesis by mammalian cyclooxygenase was completely inhibited by these chemicals and by heat treatment. Addition of AA to the parasite cell culture markedly increased an ability of the parasite cell homogenate to produce PGs and of parasitized red blood cells to accumulate PGs in the culture medium. PGD2 and PGE2 accumulated in the culture medium at the stages of trophozoites and schizonts more actively than at the ring stage. These findings are the first evidence of the direct involvement of a malaria parasite in the generation of substances that are pyrogenic and injurious to the host defenses. We will discuss a possible contribution of the parasite-produced PGs to pathogenesis and host-parasite interaction of P. falciparum.

Indexed as

AnimalsArachidonic AcidDinoprostDinoprostoneDose-Response Relationship, DrugHumansImmunosuppressive AgentsPlasmodium falciparumProstaglandin D2Prostaglandin-Endoperoxide SynthasesProstaglandinsPyrogensSheepSleepSpecies SpecificityArachidonic AcidDinoprostDinoprostoneImmunosuppressive AgentsProstaglandin D2Prostaglandin-Endoperoxide SynthasesProstaglandinsPyrogens

Identifiers

PMID9743538
PMCPMC2212549
OpenAlexW2159587755

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.