Evidence map›Paper›PMID 20070826›Full record

ArticleParasite immunology2010

Acquisition of antibody isotypes against Plasmodium falciparum blood stage antigens in a birth cohort.

N O Duah, D J C Miles, H C Whittle, D J Conway

Open access · bronzeAbstract read
In one paragraph

Article in Parasite immunology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Dynamics of IgG antibody response againstFrontiers in immunology · 2023
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  9. Microscopic and submicroscopic infection byFrontiers in cellular and infection microbiology · 2022
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  11. Review
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  13. Article
  14. Article
  15. Article
  16. Evaluation of Immunoglobulin G Responses toThe American journal of tropical medicine and hygiene · 2017
    Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 3 institutions in 3 countries.

N O DuahDepartment of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK. nduah@noguchi.mimcom.org
D J C Miles
H C Whittle
D J Conway
London School of Hygiene & Tropical Medicine · GBMRC Unit the Gambia · GMUniversity of Cape Town · ZA

Funding

Medical Research Council MC_U190074193Medical Research Council MC_U190081978
6 · The paper itself

Abstract

Information on the period during which infants lose their maternally derived antibodies to malaria and begin to acquire naturally their own immune responses against parasite antigens is crucial for understanding when malaria vaccines may be best administered. This study investigated the rates of decline and acquisition of serum antibody isotypes IgG1, IgG2, IgG3, IgG4, IgM and IgA to Plasmodium falciparum antigens apical membrane antigen (AMA1), merozoite surface proteins (MSP1-19, MSP2 and MSP3) in a birth cohort of 53 children living in an urban area in the Gambia, followed over the first 3 years of life (sampled at birth, 4, 9, 18 and 36 months). Antigen-specific maternally transferred antibody isotypes of all IgG subclasses were detected at birth and were almost totally depleted by 4 months of age. Acquisition of specific antibody isotypes to the antigens began with IgM, followed by IgG1 and IgA. Against the MSP2 antigen, IgG1 but not IgG3 responses were observed in the children, in contrast with the maternally derived antibodies to this antigen that were mostly IgG3. This confirms that IgG subclass responses to MSP2 are strongly dependent on age or previous malaria experience, polarized towards IgG1 early in life and to IgG3 in older exposed individuals.

Indexed as

Adaptive ImmunityAnimalsAntibodies, ProtozoanAntigens, ProtozoanChild, PreschoolCohort StudiesFemaleGambiaHumansImmunity, Maternally-AcquiredImmunoglobulin IsotypesInfantInfant, NewbornMalaria, FalciparumMalePlasmodium falciparumAntibodies, ProtozoanAntigens, ProtozoanImmunoglobulin Isotypes

Identifiers

PMID20070826
PMCPMC2814092
OpenAlexW2000552640

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.