Evidence map›Paper›PMID 34778983›Full record

ReviewParasite immunology2022

Mistimed malaria parasites re-synchronize with host feeding-fasting rhythms by shortening the duration of intra-erythrocytic development.

Aidan J O'Donnell, Megan A Greischar, Sarah E Reece

Open access · hybridAbstract readReview
In one paragraph

Review in Parasite immunology, 2022. 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
3.3field-weighted citation impact, top 8% 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, 20 citations in OpenAlex.

  1. Phenotypic and fitness consequences of plasticity in the rhythmic replication of malaria parasites.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  2. Immune regulation of host energy metabolism and periodicity of malaria parasites.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  3. Melatonin as a Circadian Marker forInternational journal of molecular sciences · 2024
    Review
  4. Effect of neem leaf extract (Veterinary world · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. The parasite intraerythrocytic cycle and human circadian cycle are coupled during malaria infection.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  10. Review
  11. Review
  12. Review
  13. 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 2 institutions in 2 countries.

Aidan J O'DonnellInstitute of Evolutionary Biology, and Institute of Immunology and Infection Research, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.ORCID 0000-0003-3503-094X
Megan A GreischarDepartment of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, USA.ORCID 0000-0002-7521-9344
Sarah E ReeceInstitute of Evolutionary Biology, and Institute of Immunology and Infection Research, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.ORCID 0000-0001-6716-6732
Centre for Immunity, Infection and Evolution · GBCornell University · US

Funding

Wellcome Trust 202769/Z/16/Z
6 · The paper itself

Abstract

aimsMalaria parasites exhibit daily rhythms in the intra-erythrocytic development cycle (IDC) that underpins asexual replication in the blood. The IDC schedule is aligned with the timing of host feeding-fasting rhythms. When the IDC schedule is perturbed to become mismatched to host rhythms, it readily reschedules but it is not known how.

methodsWe intensively follow four groups of infections that have different temporal alignments between host rhythms and the IDC schedule for 10 days, before and after the peak in asexual densities. We compare how the duration, synchrony and timing of the IDC differs between parasites in control infections and those forced to reschedule by 12 hours and ask whether the density of parasites affects the rescheduling process. RESULTS AND

conclusionsOur experiments reveal parasites shorten the IDC duration by 2-3 hours to become realigned to host feeding-fasting rhythms with 5-6 days, in a density-independent manner. Furthermore, parasites are able to reschedule without significant fitness costs for them or their hosts. Understanding the extent of, and limits on, plasticity in the IDC schedule may reveal targets for novel interventions, such as drugs to disrupt IDC regulation and preventing IDC dormancy conferring tolerance to existing drugs.

Indexed as

MalariaParasitesPlasmodium chabaudiAnimalsCircadian RhythmFastingasexual replicationbiological rhythmcircadianfitnessintra-erythrocytic development cycleperiodicityPlasmodium

Identifiers

PMID34778983
PMCPMC9285586
OpenAlexW3214336376

What Socratic 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 Socratic graph.