Evidence map›Paper›PMID 36440448›Full record

ArticleFrontiers in bioengineering and biotechnology2022

Circadian rhythmicity in murine blood: Electrical effects of malaria infection and anemia.

Fatima H Labeed, Andrew D Beale, Petra Schneider, Stephen J Kitcatt, Emily J Kruchek, Sarah E Reece

Open access · goldAbstract read
In one paragraph

Article in Frontiers in bioengineering and biotechnology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 34% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
  2. VScientific reports · 2025
    Article
  3. Article
  4. Clockwork intruders: Do parasites manipulate their hosts' circadian rhythms?Current research in parasitology & vector-borne diseases · 2024
    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

6 authors at 2 institutions in 1 country.

Fatima H LabeedCentre for Biomedical Engineering, University of Surrey, Guildford, United Kingdom.
Andrew D BealeCentre for Biomedical Engineering, University of Surrey, Guildford, United Kingdom.
Petra SchneiderInstitute of Ecology and Evolution, University of Edinburgh, Edinburgh, United Kingdom.
Stephen J KitcattCentre for Biomedical Engineering, University of Surrey, Guildford, United Kingdom.
Emily J KruchekCentre for Biomedical Engineering, University of Surrey, Guildford, United Kingdom.
Sarah E ReeceInstitute of Ecology and Evolution, University of Edinburgh, Edinburgh, United Kingdom.
University of Surrey · GBUniversity of Edinburgh · GB

Funding

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

Abstract

Circadian rhythms are biological adaptations to the day-night cycle, whereby cells adapt to changes in the external environment or internal physiology according to the time of day. Whilst many cellular clock mechanisms involve gene expression feedback mechanisms, clocks operate even where gene expression is absent. For example, red blood cells (RBCs) do not have capacity for gene expression, and instead possess an electrophysiological oscillator where cytosolic potassium plays a key role in timekeeping. We examined murine blood under normal conditions as well as in two perturbed states, malaria infection and induced anemia, to assess changes in baseline cellular electrophysiology and its implications for the electrophysiological oscillator. Blood samples were analyzed at 4-h intervals over 2 days by dielectrophoresis, and microscopic determination of parasitemia. We found that cytoplasmic conductivity (indicating the concentration of free ions in the cytoplasm and related to the membrane potential) exhibited circadian rhythmic behavior in all three cases (control, malaria and anemia). Compared to control samples, cytoplasm conductivity was decreased in the anemia group, whilst malaria-infected samples were in antiphase to control. Furthermore, we identified rhythmic behavior in membrane capacitance of malaria infected cells that was not replicated in the other samples. Finally, we reveal the historically famous rhythmicity of malaria parasite replication is in phase with cytoplasm conductivity. Our findings suggest the electrophysiological oscillator can impact on malaria parasite replication and/or is vulnerable to perturbation by rhythmic parasite activities.

Indexed as

DEPdielectrophoresiselectrophysiologymalariamalaria-induced anemiamouseparasitemiarhythm

Identifiers

PMID36440448
PMCPMC9686327
OpenAlexW4308664430

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.