Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children
Abstract Background There is evidence that suggests that undernutrition has a detrimental effect on malarial immunity in children. The aim of the study was to discover whether nutrient supplementation improved development of malarial antibody immunity in children up to 18 months of age. Methods The...
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ftdoajarticles:oai:doaj.org/article:8402150f8fa14b75ac71c9f6c0a57b97 2023-05-15T15:16:44+02:00 Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children Priyanka Barua Upeksha P. Chandrasiri James G. Beeson Kathryn G. Dewey Kenneth Maleta Per Ashorn Stephen J. Rogerson 2018-02-01T00:00:00Z https://doi.org/10.1186/s12936-018-2224-6 https://doaj.org/article/8402150f8fa14b75ac71c9f6c0a57b97 EN eng BMC http://link.springer.com/article/10.1186/s12936-018-2224-6 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-018-2224-6 1475-2875 https://doaj.org/article/8402150f8fa14b75ac71c9f6c0a57b97 Malaria Journal, Vol 17, Iss 1, Pp 1-13 (2018) Malarial immunity in children Nutrient supplements Randomized controlled trial Merozoite antigens Variant surface antigens Seroprevalence Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2018 ftdoajarticles https://doi.org/10.1186/s12936-018-2224-6 2022-12-31T00:51:55Z Abstract Background There is evidence that suggests that undernutrition has a detrimental effect on malarial immunity in children. The aim of the study was to discover whether nutrient supplementation improved development of malarial antibody immunity in children up to 18 months of age. Methods The study was conducted with a subset of 432 Malawian children from a randomized controlled trial of nutritional supplements. The arms included pre- and postnatal small-quantity lipid-based nutrient supplements for both mother and child; prenatal supplementation with iron and folic acid; and pre- and postnatal supplementation with multiple micronutrients. Paired plasma samples were collected at 6 and 18 months of age. The levels of antibodies against merozoite surface protein 1 (MSP1 19kD) and MSP2, erythrocyte binding antigen 175 (EBA175), reticulocyte binding protein homologue 2A (Rh2A9), schizont extract and variant antigens expressed on the surface of infected erythrocytes were measured. Results At 18 months of age, 5.4% of children were parasitaemic by microscopy and 49.1% were anaemic. Antibodies to the tested merozoite antigens and schizont extract increased between 6 and 18 months and this increase was statistically significant for MSP1, MSP2 and EBA175 (p < 0.0001) whereas IgG to variant surface antigens decreased with increasing age (p < 0.0001). However, the supplementation type did not have any impact on the prevalence or levels of antibodies at either 6 or 18 months of age to any of the tested malaria antigens in either univariate analysis or multivariate analysis after adjusting for covariates. Conclusions Pre- and postnatal lipid-based nutrient supplementation did not alter malaria antibody acquisition during infancy, compared to prenatal supplementation with iron and folic acid or pre- and postnatal supplementation with multiple micronutrients. Trail registeration Clinicaltrials.gov registration number NCT01239693 Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 17 1 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
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Malarial immunity in children Nutrient supplements Randomized controlled trial Merozoite antigens Variant surface antigens Seroprevalence Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Malarial immunity in children Nutrient supplements Randomized controlled trial Merozoite antigens Variant surface antigens Seroprevalence Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Priyanka Barua Upeksha P. Chandrasiri James G. Beeson Kathryn G. Dewey Kenneth Maleta Per Ashorn Stephen J. Rogerson Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children |
topic_facet |
Malarial immunity in children Nutrient supplements Randomized controlled trial Merozoite antigens Variant surface antigens Seroprevalence Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background There is evidence that suggests that undernutrition has a detrimental effect on malarial immunity in children. The aim of the study was to discover whether nutrient supplementation improved development of malarial antibody immunity in children up to 18 months of age. Methods The study was conducted with a subset of 432 Malawian children from a randomized controlled trial of nutritional supplements. The arms included pre- and postnatal small-quantity lipid-based nutrient supplements for both mother and child; prenatal supplementation with iron and folic acid; and pre- and postnatal supplementation with multiple micronutrients. Paired plasma samples were collected at 6 and 18 months of age. The levels of antibodies against merozoite surface protein 1 (MSP1 19kD) and MSP2, erythrocyte binding antigen 175 (EBA175), reticulocyte binding protein homologue 2A (Rh2A9), schizont extract and variant antigens expressed on the surface of infected erythrocytes were measured. Results At 18 months of age, 5.4% of children were parasitaemic by microscopy and 49.1% were anaemic. Antibodies to the tested merozoite antigens and schizont extract increased between 6 and 18 months and this increase was statistically significant for MSP1, MSP2 and EBA175 (p < 0.0001) whereas IgG to variant surface antigens decreased with increasing age (p < 0.0001). However, the supplementation type did not have any impact on the prevalence or levels of antibodies at either 6 or 18 months of age to any of the tested malaria antigens in either univariate analysis or multivariate analysis after adjusting for covariates. Conclusions Pre- and postnatal lipid-based nutrient supplementation did not alter malaria antibody acquisition during infancy, compared to prenatal supplementation with iron and folic acid or pre- and postnatal supplementation with multiple micronutrients. Trail registeration Clinicaltrials.gov registration number NCT01239693 |
format |
Article in Journal/Newspaper |
author |
Priyanka Barua Upeksha P. Chandrasiri James G. Beeson Kathryn G. Dewey Kenneth Maleta Per Ashorn Stephen J. Rogerson |
author_facet |
Priyanka Barua Upeksha P. Chandrasiri James G. Beeson Kathryn G. Dewey Kenneth Maleta Per Ashorn Stephen J. Rogerson |
author_sort |
Priyanka Barua |
title |
Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children |
title_short |
Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children |
title_full |
Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children |
title_fullStr |
Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children |
title_full_unstemmed |
Effect of nutrient supplementation on the acquisition of humoral immunity to Plasmodium falciparum in young Malawian children |
title_sort |
effect of nutrient supplementation on the acquisition of humoral immunity to plasmodium falciparum in young malawian children |
publisher |
BMC |
publishDate |
2018 |
url |
https://doi.org/10.1186/s12936-018-2224-6 https://doaj.org/article/8402150f8fa14b75ac71c9f6c0a57b97 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 17, Iss 1, Pp 1-13 (2018) |
op_relation |
http://link.springer.com/article/10.1186/s12936-018-2224-6 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-018-2224-6 1475-2875 https://doaj.org/article/8402150f8fa14b75ac71c9f6c0a57b97 |
op_doi |
https://doi.org/10.1186/s12936-018-2224-6 |
container_title |
Malaria Journal |
container_volume |
17 |
container_issue |
1 |
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1766347021019512832 |