Evidence map›Paper›PMID 26410225›Full record

ArticleMalaria journal2015

Novel flow cytometry technique for detection of Plasmodium falciparum specific B-cells in humans: increased levels of specific B-cells in ongoing infection.

Allan Lugaajju, Sreenivasulu B Reddy, Caroline Rönnberg, Mats Wahlgren, Fred Kironde, Kristina E M Persson

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

7 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Flow Cytometry Assay of Plasmodium Falciparum-Specific B-Cell Proportions.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
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  5. Article
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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 3 institutions in 2 countries.

Allan LugaajjuSchool of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda. aluggs@gmail.com.
Sreenivasulu B ReddyMicrobiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden. sree.basireddy77@gmail.com.
Caroline RönnbergMicrobiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden. caroline.ronnberg@ki.se.
Mats WahlgrenMicrobiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden. Mats.Wahlgren@ki.se.
Fred KirondeSchool of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda. faskironde@gmail.com.
Kristina E M PerssonMicrobiology, Tumor, and Cell Biology, Karolinska Institutet, Solna, Sweden. kristina.persson@med.lu.se.
Karolinska Institutet · SEIslamic University in Uganda · UGLund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMalaria caused by Plasmodium falciparum is still a major health threat in endemic areas especially for children below 5 years of age. While it is recognized that antibody immunity plays an important role in controlling the disease, knowledge of the mechanisms of sustenance and natural boosting of immunity is very limited. Before, it has not been possible to investigate malaria specific B-cells directly in flow cytometry, making it difficult to know how much of a B cell response is due to malaria, or how much is due to other immunological stimulators.

methodsThis study developed a technique using quantum dots and schizont extract made from ghosts of infected erythrocytes, to be able to investigate P. falciparum specific B-cells, something that has never been done before.

resultsMajor differences in P. falciparum specific B-cells were found between samples from immune (22.3 %) and non-immune (1.7 %) individuals. Samples from parasite positive individuals had the highest proportions of specific B-cells (27.9 %).

conclusionThe study showed increased levels of P. falciparum-specific B-cells in immune individuals, with the highest levels in active malaria infections, using a new technique that opens up new possibilities to study how these cells are sustained in vivo after natural infections. It will also be useful in vaccine studies.

Indexed as

B-LymphocytesErythrocyte MembraneFlow CytometryHumansMalaria, FalciparumParasitologyPlasmodium falciparumProtozoan ProteinsQuantum DotsReproducibility of ResultsProtozoan Proteins

Identifiers

PMID26410225
PMCPMC4583755
OpenAlexW2096510930

What OpenQuestion holds

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LicenceCC BY
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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.