Evidence map›Paper›PMID 18452584›Full record

ArticleMolecular microbiology2008

Disruption of a Plasmodium falciparum cyclic nucleotide phosphodiesterase gene causes aberrant gametogenesis.

Cathy J Taylor, Louisa McRobert, David A Baker

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
6.3field-weighted citation impact, top 4% 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

45 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. mBio · 2025
    Article
  5. Review
  6. Article
  7. Review
  8. Microorganisms · 2023
    Review
  9. AScience advances · 2023
    Article
  10. Article
  11. mBio · 2022
    Article
  12. Article
  13. Gametogenesis inFrontiers in cellular and infection microbiology · 2022
    Review
  14. Updated List of Transport Proteins inFrontiers in cellular and infection microbiology · 2022
    Review
  15. mBio · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. The protozoan parasiteComputational and structural biotechnology journal · 2020
    Article
  20. 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

3 authors at 2 institutions in 1 country.

Cathy J TaylorDepartment of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK.
Louisa McRobert
David A Baker
London School of Hygiene & Tropical Medicine · GBUniversity of London · GB

Funding

Medical Research CouncilWellcome TrustWellcome Trust 066742
6 · The paper itself

Abstract

Phosphodiesterase (PDE) and guanylyl cyclase (GC) enzymes are key components of the cGMP signalling pathway and are encoded in the genome of Plasmodium falciparum. Here we investigate the role of specific GC and PDE isoforms in gamete formation--a process that is essential for malaria transmission and occurs in the Anopheles mosquito midgut following feeding on an infected individual. Details of the intracellular signalling events controlling development of the male and female gametes from their precursors (gametocytes) remain sparse in P. falciparum. Previous work involving the addition of pharmacological agents to gametocytes implicated cGMP in exflagellation--the emergence of highly motile, flagellated male gametes from the host red blood cell. In this study we show that decreased GC activity in parasites having undergone disruption of the PfGCbeta gene had no significant effect on gametogenesis. By contrast, decreased cGMP-PDE activity during gametocyte development owing to disruption of the PfPDEdelta gene, led to a severely reduced ability to undergo gametogenesis. This suggests that the concentration of cGMP must be maintained below a threshold in the developing gametocyte to allow subsequent differentiation to proceed normally. The data indicate that PfPDEdelta plays a crucial role in regulating cGMP levels during sexual development.

Indexed as

GametogenesisAnimalsErythrocytesFemaleGuanylate CyclaseHumansMalaria, FalciparumMaleMutationPhosphoric Diester HydrolasesPlasmodium falciparumProtozoan ProteinsGuanylate CyclasePhosphoric Diester HydrolasesProtozoan Proteins

Identifiers

PMID18452584
PMCPMC2615252
OpenAlexW2102547408

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.