Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.

Vitamin D plays an increasingly recognized role in the innate and adaptive immune response to infection. Based on demonstrated roles in up-regulating innate immunity, decreasing inflammation, and reducing the severity of disease in illnesses such as tuberculosis and influenza, we hypothesized that p...

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Main Authors: Sarah E Cusick, Robert O Opoka, Troy C Lund, Chandy C John, Lynda E Polgreen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0113185
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author Sarah E Cusick
Robert O Opoka
Troy C Lund
Chandy C John
Lynda E Polgreen
author_facet Sarah E Cusick
Robert O Opoka
Troy C Lund
Chandy C John
Lynda E Polgreen
author_sort Sarah E Cusick
collection DOAJ
description Vitamin D plays an increasingly recognized role in the innate and adaptive immune response to infection. Based on demonstrated roles in up-regulating innate immunity, decreasing inflammation, and reducing the severity of disease in illnesses such as tuberculosis and influenza, we hypothesized that poor vitamin D status would be associated with severe malaria. We measured 25-hydroxyvitamin D [25(OH)D] by immunoassay in a sample of Ugandan children aged 18 months-12 years with severe malaria (cerebral malaria or severe malarial anemia, n = 40) and in healthy community children (n = 20). Ninety-five percent of children with severe malaria (n = 38) and 80% of control children (n = 16) were vitamin D-insufficient [plasma 25(OH)D <30 ng/mL]. Mean plasma 25(OH)D levels were significantly lower in children with severe malaria than in community children (21.2 vs. 25.3 ng/mL, p = 0.03). Logistic regression revealed that for every 1 ng/mL increase in plasma 25(OH)D, the odds of having severe malaria declined by 9% [OR = 0.91 (95% CI: 0.84, 1.0)]. These preliminary results suggest that vitamin D insufficiency may play a role in the development of severe malaria. Further prospective studies in larger cohorts are indicated to confirm the relationship of vitamin D levels to severity of malaria infection and to investigate causality.
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spelling doaj.art-afcedd87125640f3b8f71f244d903cd92022-12-21T19:11:11ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-01912e11318510.1371/journal.pone.0113185Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.Sarah E CusickRobert O OpokaTroy C LundChandy C JohnLynda E PolgreenVitamin D plays an increasingly recognized role in the innate and adaptive immune response to infection. Based on demonstrated roles in up-regulating innate immunity, decreasing inflammation, and reducing the severity of disease in illnesses such as tuberculosis and influenza, we hypothesized that poor vitamin D status would be associated with severe malaria. We measured 25-hydroxyvitamin D [25(OH)D] by immunoassay in a sample of Ugandan children aged 18 months-12 years with severe malaria (cerebral malaria or severe malarial anemia, n = 40) and in healthy community children (n = 20). Ninety-five percent of children with severe malaria (n = 38) and 80% of control children (n = 16) were vitamin D-insufficient [plasma 25(OH)D <30 ng/mL]. Mean plasma 25(OH)D levels were significantly lower in children with severe malaria than in community children (21.2 vs. 25.3 ng/mL, p = 0.03). Logistic regression revealed that for every 1 ng/mL increase in plasma 25(OH)D, the odds of having severe malaria declined by 9% [OR = 0.91 (95% CI: 0.84, 1.0)]. These preliminary results suggest that vitamin D insufficiency may play a role in the development of severe malaria. Further prospective studies in larger cohorts are indicated to confirm the relationship of vitamin D levels to severity of malaria infection and to investigate causality.https://doi.org/10.1371/journal.pone.0113185
spellingShingle Sarah E Cusick
Robert O Opoka
Troy C Lund
Chandy C John
Lynda E Polgreen
Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.
PLoS ONE
title Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.
title_full Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.
title_fullStr Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.
title_full_unstemmed Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.
title_short Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria.
title_sort vitamin d insufficiency is common in ugandan children and is associated with severe malaria
url https://doi.org/10.1371/journal.pone.0113185
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