Evidence map›Paper›PMID 10225892›Full record

ArticleInfection and immunity1999

Phagocytosis does not play a major role in naturally acquired transmission-blocking immunity to Plasmodium falciparum malaria.

J Healer, A Graszynski, E Riley

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Neutrophils and Malaria.Frontiers in immunology · 2018
    Review
  12. Article
  13. Evidence for spleen dysfunction in malaria-HIV co-infection in a subset of pediatric patients.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2016
    Article
  14. Review
  15. Plasmodium falciparum gametocytes: playing hide and seek.Annals of translational medicine · 2015
    Article
  16. Article
  17. Review
  18. Article
  19. 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

3 authors at 1 institution in 1 country.

J HealerInstitute of Cell, Animal and Population Biology, Division of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JT, United Kingdom.
A Graszynski
E Riley
University of Edinburgh · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Phagocytosis of Plasmodium falciparum sexual stages in vitro and within the mosquito midgut was assayed in order to assess its role in transmission-blocking immunity to malaria. Both monocytes/macrophages (MM) and polymorphonuclear neutrophils (PMN) phagocytosed malarial gametes in vitro, but levels of phagocytosis were low. Intraerythrocytic gametocytes were not susceptible to phagocytosis. In vitro phagocytosis was positively correlated with levels of antibodies against the gamete surface proteins Pfs230 and Pfs48/45. Immunoglobulin G (IgG) subclass analysis revealed that phagocytosis was correlated with levels of antigamete IgG1. In vivo membrane-feeding experiments were performed in the presence of both pooled and individual malaria immune sera. The phagocytic process proceeded less efficiently in vivo than in vitro, which may be related to the lower ambient temperature (26 degrees C, compared with 37 degrees C). Finally, although we found a correlation between the ability of a serum to promote phagocytosis in vitro and the presence of antibodies against transmission-blocking target antigens, we were unable to demonstrate a role for MM- or PMN-mediated phagocytosis in reduction of infectivity of the malarial parasite to mosquitoes.

Indexed as

Immunity, InnatePhagocytosisAnimalsAntibodies, ProtozoanCulicidaeHumansImmunoglobulin GIn Vitro TechniquesMacrophagesMalaria, FalciparumMonocytesNeutrophilsPlasmodium falciparumAntibodies, ProtozoanImmunoglobulin G

Identifiers

PMID10225892
PMCPMC115975
OpenAlexW2120556256

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.