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Palmer AC, Bedsaul-Fryer JR, Stephensen CB. Interactions of Nutrition and Infection: The Role of Micronutrient Deficiencies in the Immune Response to Pathogens and Implications for Child Health. Annu Rev Nutr 2024; 44:99-124. [PMID: 38724105 DOI: 10.1146/annurev-nutr-062122-014910] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2024]
Abstract
Approximately five million children die each year from preventable causes, including respiratory infections, diarrhea, and malaria. Roughly half of those deaths are attributable to undernutrition, including micronutrient deficiencies (MNDs). The influence of infection on micronutrient status is well established: The inflammatory response to pathogens triggers anorexia, while pathogens and the immune response can both alter nutrient absorption and cause nutrient losses. We review the roles of vitamin A, vitamin D, iron, zinc, and selenium in the immune system, which act in the regulation of molecular- or cellular-level host defenses, directly affecting pathogens or protecting against oxidative stress or inflammation. We further summarize high-quality evidence regarding the synergistic or antagonistic interactions between MNDs, pathogens, and morbidity or mortality relevant to child health in low- and middle-income countries. We conclude with a discussion of gaps in the literature and future directions for multidisciplinary research on the interactions of MNDs, infection, and inflammation.
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Affiliation(s)
- Amanda C Palmer
- Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;
| | - Jacquelyn R Bedsaul-Fryer
- Cancer Prevention Fellowship Program, Division of Cancer Prevention, National Cancer Institute, Rockville, Maryland, USA
- Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;
| | - Charles B Stephensen
- Department of Nutrition, University of California, Davis, California, USA
- Western Human Nutrition Research Center, Agricultural Research Service, United States Department of Agriculture, Davis, California, USA
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2
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McDonald CM, Wessells KR, Stewart CP, Dewey KG, de Pee S, Rana R, Hafeez-Ur-Rehman H, Mwangi MN, Hess SY. Perinatal intervention strategies providing food with micronutrients to pregnant and breastfeeding women in low- and middle-income countries: A scoping review. MATERNAL & CHILD NUTRITION 2024:e13681. [PMID: 38949186 DOI: 10.1111/mcn.13681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 05/03/2024] [Accepted: 05/28/2024] [Indexed: 07/02/2024]
Abstract
In resource-constrained settings, pregnant and breastfeeding women and girls (PBW/G) are particularly vulnerable to undernutrition. Micronutrient-fortified balanced energy protein (BEP) supplementation may be provided to boost maternal nutritional status and improve birth and infant outcomes. We conducted a scoping review of the published literature to determine the impact of BEP and other related nutrition interventions that provided fortified food or cash along with a minimum of 3 micronutrients on maternal, birth, and infant/child outcomes in low- and middle-income countries. We conducted a PubMed search using pre-defined keywords and controlled vocabulary search terms. All titles and abstracts were reviewed for eligibility by two independent reviewers, and data were extracted according to outcome type. We identified 149 eligible research articles that reported on a total of 21 trials and/or programme evaluations which assessed the health impact of one or more products (fortified lipid-based nutrient supplement [LNS, n = 12], fortified blended flours [n = 5], milk-based beverages [n = 2], and local food/snacks [n = 3]) that provided 118-750 kcal/day and varying levels of protein and micronutrients. Only one of these programme evaluations assessed the impact of the provision of cash and fortified food. Effects on maternal outcomes such as gestational weight gain and duration of gestation were promising but inconsistent. Birth outcomes were reported in 15 studies, and the effects on birthweight and birth length were generally positive. Seven studies demonstrated sustained benefits on infant and child growth out of the 15 studies that reported at least one of these outcomes, although data were sparse. Additional research is needed to investigate issues of dose, cost-effectiveness, and incorporation into multi-component interventions.
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Affiliation(s)
- Christine M McDonald
- Departments of Pediatrics, and Epidemiology & Biostatistics, University of California, San Francisco, California, USA
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - K Ryan Wessells
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - Christine P Stewart
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - Kathryn G Dewey
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
| | - Saskia de Pee
- Nutrition Division, World Food Programme HQ, Rome, Italy
| | - Ritu Rana
- Nutrition Division, World Food Programme HQ, Rome, Italy
| | | | | | - Sonja Y Hess
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, California, USA
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3
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Wegmüller R, Bah A, Kendall L, Goheen MM, Sanyang S, Danso E, Sise EA, Jallow A, Verhoef H, Jallow MW, Wathuo M, Armitage AE, Drakesmith H, Pasricha SR, Cross JH, Cerami C, Prentice AM. Hepcidin-guided screen-and-treat interventions for young children with iron-deficiency anaemia in The Gambia: an individually randomised, three-arm, double-blind, controlled, proof-of-concept, non-inferiority trial. Lancet Glob Health 2023; 11:e105-e116. [PMID: 36521942 PMCID: PMC9764454 DOI: 10.1016/s2214-109x(22)00449-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 09/22/2022] [Accepted: 10/04/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Iron deficiency is the most prevalent nutritional disorder worldwide. Iron supplementation has modest efficacy, causes gastrointestinal side-effects that limit compliance, and has been associated with serious adverse outcomes in children across low-income settings. We aimed to compare two hepcidin-guided screen-and-treat regimens designed to reduce overall iron dosage by targeting its administration to periods when children were safe and ready to receive iron supplementation, with WHO's recommendation of universal iron supplementation. METHODS We conducted an individually randomised, three-arm, double-blind, controlled, proof-of-concept, non-inferiority trial in 12 rural communities across The Gambia. Eligible participants were children aged 6-23 months with anaemia. Participants were randomly assigned (1:1:1) to either the WHO recommended regimen of one sachet of multiple micronutrient powder (MMP) daily containing 12·0 mg iron as encapsulated ferrous fumarate (control group); to MMP with 12·0 mg per day iron for the next 7 days if plasma hepcidin concentration was less than 5·5 μg/L, or to MMP without iron for the next 7 days if plasma hepcidin concentration was at least 5·5 μg/L (12 mg screen-and-treat group); or to MMP with 6·0 mg per day iron for the next 7 days if plasma hepcidin concentration was less than 5·5 μg/L, or to MMP without iron for the next 7 days if plasma hepcidin concentration was at least 5·5 μg/L (6 mg screen-and-treat group). Randomisation was done by use of a permuted block design (block size of 9), with stratification by haemoglobin and age, using computer-generated numbers. Participants and the research team (except for the data manager) were masked to group allocation. The primary outcome was haemoglobin concentration, with a non-inferiority margin of -5 g/L. A per-protocol analysis, including only children who had consumed at least 90% of the supplements (ie, supplement intake on ≥75 days during the study), was done to assess non-inferiority of the primary outcome at day 84 using a one-sided t test adjusted for multiple comparisons. Safety was assessed by use of ex-vivo growth tests of Plasmodium falciparum in erythrocytes and three species of sentinel bacteria in plasma samples from participants. This trial is registered with the ISRCTN registry, ISRCTN07210906. FINDINGS Between April 23, 2014, and Aug 7, 2015, we prescreened 783 children, of whom 407 were enrolled into the study: 135 were randomly assigned to the control group, 136 to the 12 mg screen-and-treat group, and 136 to the 6 mg screen-and-treat group. 345 (85%) children were included in the per-protocol population: 115 in the control group, 116 in the 12 mg screen-and-treat group, and 114 in the 6 mg screen-and-treat group. Directly observed adherence was high across all groups (control group 94·8%, 12 mg screen-and-treat group 95·3%, and 6 mg screen-and-treat group 95·0%). 82 days of iron supplementation increased mean haemoglobin concentration by 7·7 g/L (95% CI 3·2 to 12·2) in the control group. Both screen-and-treat regimens were significantly less efficacious at improving haemoglobin (-5·6 g/L [98·3% CI -9·9 to -1·3] in the 12 mg screen-and-treat group and -7·8 g/L [98·3% CI -12·2 to -3·5] in the 6 mg screen-and-treat group) and neither regimen met the preset non-inferiority margin of -5 g/L. The 12 mg screen-and-treat regimen reduced iron dosage to 6·1 mg per day and the 6 mg screen-and-treat regimen reduced dosage to 3·0 mg per day. 580 adverse events were observed in 316 participants, of which eight were serious adverse events requiring hospitalisation mainly due to diarrhoeal disease (one [1%] participant in the control group, three [2%] in the 12 mg screen-and-treat group, and four [3%] in the 6 mg screen-and-treat group). The most common causes of non-serious adverse events (n=572) were diarrhoea (145 events [25%]), upper respiratory tract infections (194 [34%]), lower respiratory tract infections (62 [11%]), and skin infections (122 [21%]). No adverse events were deemed to be related to the study interventions. INTERPRETATION The hepcidin-guided screen-and-treat strategy to target iron administration succeeded in reducing overall iron dosage, but was considerably less efficacious at increasing haemoglobin and combating iron deficiency and anaemia than was WHO's standard of care, and showed no differences in morbidity or safety outcomes. FUNDING Bill & Melinda Gates Foundation and UK Medical Research Council.
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Affiliation(s)
- Rita Wegmüller
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia; GroundWork, Fläsch, Switzerland
| | - Amat Bah
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia; National Nutrition Agency, Bakau, The Gambia
| | - Lindsay Kendall
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Morgan M Goheen
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia; Department of Internal Medicine, Yale University, New Haven, CT, USA
| | - Saikou Sanyang
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Ebrima Danso
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Ebrima A Sise
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Amadou Jallow
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Hans Verhoef
- Wageningen University & Research, Wageningen, Netherlands
| | - Momodou W Jallow
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia; Regeneron Genetics Center, Tarrytown, NY, USA
| | - Miriam Wathuo
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia; One Acre Fund, Kigali, Rwanda
| | - Andrew E Armitage
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Hal Drakesmith
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Sant-Rayn Pasricha
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
| | - James H Cross
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Carla Cerami
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Andrew M Prentice
- Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia.
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4
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Gomes F, Agustina R, Black RE, Christian P, Dewey KG, Kraemer K, Shankar AH, Smith ER, Thorne-Lyman A, Tumilowicz A, Bourassa MW. Multiple micronutrient supplements versus iron-folic acid supplements and maternal anemia outcomes: an iron dose analysis. Ann N Y Acad Sci 2022; 1512:114-125. [PMID: 35218047 PMCID: PMC9306935 DOI: 10.1111/nyas.14756] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/01/2021] [Indexed: 11/26/2022]
Abstract
Antenatal multiple micronutrient supplements (MMS) are more effective than iron and folic acid (IFA) supplements in reducing adverse pregnancy outcomes. Questions remain, however, about the ability of MMS to prevent anemia as effectively as IFA, especially at a lower dose of daily iron and in areas of high anemia prevalence. Analyzing data from 11 trials from a recent Cochrane review, we compared MMS to IFA, delivering either 30 or 60 mg of iron, in sustaining hemoglobin and preventing third trimester anemia and iron deficiency anemia (IDA), accounting for daily iron dose, total supplemental iron intake, and baseline prevalence of anemia. There were no differences between MMS and IFA in third trimester hemoglobin concentration or risks of anemia or IDA by iron dose or total supplemental iron consumed. MMS providing 30 mg of iron was comparable to IFA with 60 mg of iron: mean hemoglobin difference of −0.26 g/L (95% CI: −1.41 to 0.89), risk ratios of 0.99 (95% CI: 0.92–1.07) for anemia, and 1.31 (95% CI: 0.66–2.60) for IDA. Baseline prevalence of anemia did not explain heterogeneity in findings. Compared to IFA, MMS results in comparable hemoglobin concentration and protection against anemia during pregnancy, independently of iron dose.
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Affiliation(s)
- Filomena Gomes
- The New York Academy of Sciences, New York, New York.,NOVA Medical School, Lisbon, Portugal
| | - Rina Agustina
- Department of Nutrition, Faculty of Medicine, Universitas Indonesia - Dr Cipto Mangunkusumo General Hospital, Jakarta, Indonesia.,Human Nutrition Research Centre, Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Robert E Black
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Parul Christian
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - Klaus Kraemer
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Sight and Life Foundation, Basel, Switzerland
| | - Anuraj H Shankar
- University of Oxford, Oxford, UK.,Summit Institute for Development, Mataram, Indonesia
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5
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Xu Y, Moore S, Chen G, Nshe P, Faye-Joof T, Prentice A, Gong YY, Routledge M. Impact of dietary aflatoxin on immune development in Gambian infants: a cohort study. BMJ Open 2021; 11:e048688. [PMID: 34285011 PMCID: PMC8292809 DOI: 10.1136/bmjopen-2021-048688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 07/02/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Chronic aflatoxin (AF) exposure has been shown to occur at high levels in children from sub-Saharan Africa (SSA), and has been associated with growth retardation and immune dysfunction. Our objective was to investigate the impact of AF exposure on immune development in early infancy using thymic size and antibody (Ab) response to vaccination as indicators of immune function. METHODS A total of 374 infants born between May 2011 and December 2012 were enrolled into the current study. These infants were recruited from a larger, randomised trial examining the impact of nutritional supplementation of mothers and infants on infant immune development (the Early Nutrition and Immune Development Trial). Thymic size (Thymic Index, TI) was measured by sonography at 1 week, 8 weeks, 24 weeks and 52 weeks of infant age. Infants were given the diphtheria-tetanus-pertussis (DTP) vaccine at 8 weeks, 12 weeks and 16 weeks of age, and Ab responses to each vaccine measured at 12 weeks and 24 weeks of age. AF-albumin (AF-alb) adduct levels in infant blood were measured by ELISA as the biomarker of AF exposure. RESULTS The geometric mean (GM) level of AF-alb increased with age. Only half of infants had detectable AF-alb with a GM of 3.52 pg/mg at 24 weeks, increasing to 25.39 pg/mg at 52 weeks, when 98% of infants had AF-alb >limit of detection. Significant negative association of AF-alb level with TI was seen in infants during the first 24 weeks, especially at 8 weeks of age (p<0.001), which is the time point of fastest thymus growth. There were no associations between AF exposure level and Ab response to pertussis and tetanus, but a significant positive correlation was observed between AF-alb level and Ab titre to diphtheria (p<0.005). CONCLUSIONS High levels of AF exposure during early infancy may impact on infant immune development. TRIAL REGISTRATION NUMBER ISRCTN49285450.
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Affiliation(s)
- Ya Xu
- School of Medicine, University of Leeds, Leeds, UK
| | - Sophie Moore
- Department of Women and Children's Health, King's College London, London, UK
| | | | | | | | | | - Yun Yun Gong
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Michael Routledge
- School of Medicine, University of Leeds, Leeds, UK
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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Zhang Y, Zhao J, Zhou BH, Tian EJ, Tian WS, Wang HW. iTRAQ-based quantitative proteomic analysis of low molybdenum inducing thymus atrophy and participating in immune deficiency-related diseases. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 216:112200. [PMID: 33862434 DOI: 10.1016/j.ecoenv.2021.112200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/10/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
Molybdenum is a trace element with extremely uneven distribution in the environment. It constitutes the active sites of molybdenum enzymes that can catalyze redox reactions in almost all organisms. In this study, a mouse model with a low molybdenum diet was established to investigate the differential protein expressions in the thymus and the mechanism of molybdenum regulating thymocyte development. Results showed that the thymus evidently atrophied, and the weight and organ index of the thymus substantially decreased under the condition of low molybdenum (P < 0.01). A total of 274 differentially expressed proteins (DEPs) were screened through isobaric tag for relative and absolute quantification; amongst them, ribosomal proteins (38) were the most abundant. Bioinformatics analysis revealed that DEPs were mainly involved in protein metabolism (18%), nucleus (15%) and nucleic acid binding activity (17%), corresponding to biological process, cellular component and molecular function, respectively. Moreover, DEPs induced by low molybdenum were enriched in 94 pathways, of which typical maps including ribosome, oxidative phosphorylation and systemic lupus erythematosus. Flow cytometry analysis indicated the prominent imbalances of CD4+ and CD8+ cell ratios (P < 0.05, P < 0.01), suggesting the disordered development of T cell subsets. Overall, low molybdenum resulted in thymus atrophy by interfering with ribosomal protein expression and protein metabolism. This study provides a data platform for revealing the linkage between molybdenum and thymus-dependent immunity.
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Affiliation(s)
- Yan Zhang
- Henan Key Laboratory of Environmental and Animal Product Safety Henan University of Science and Technology, Luoyang 471003, Henan, China
| | - Jing Zhao
- Henan Key Laboratory of Environmental and Animal Product Safety Henan University of Science and Technology, Luoyang 471003, Henan, China
| | - Bian-Hua Zhou
- Henan Key Laboratory of Environmental and Animal Product Safety Henan University of Science and Technology, Luoyang 471003, Henan, China
| | - Er-Jie Tian
- Henan Key Laboratory of Environmental and Animal Product Safety Henan University of Science and Technology, Luoyang 471003, Henan, China
| | - Wei-Shun Tian
- College of Veterinary Medicine and Bio-safety Research Institute, Jeonbuk National University, Iksan 54596, South Korea
| | - Hong-Wei Wang
- Henan Key Laboratory of Environmental and Animal Product Safety Henan University of Science and Technology, Luoyang 471003, Henan, China.
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Larnkjær A, Michaelsen KF, Rytter MJH, Mølgaard C, Laursen RP. Effect of probiotics on thymus size and markers of infection in late infancy: a randomized controlled trial. Pediatr Res 2021; 89:563-568. [PMID: 32305995 DOI: 10.1038/s41390-020-0895-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/24/2020] [Accepted: 03/30/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Probiotics are known to stimulate the immune system but the effect on thymus size in late infancy is unknown. We examined the effect of probiotics on thymus size and C-reactive protein (CRP) in healthy Danish infants starting daycare. We further examined associations between thymus size, CRP and recent infections. METHODS The study included 186 children randomized to a combination of Lactobacillus rhamnosus, LGG® and Bifidobacterium animalis spp. lactis, BB-12® or placebo for 6 months. Thymus size, assessed as thymus index (TI) and thymus weight index (TWI), was measured by ultrasound at baseline and at endpoint. Blood samples were drawn to measure CRP. Infections were parent-reported. RESULTS There was no significant difference in thymus size between the probiotic group and placebo (p ≥ 0.248) but TWI tended to be higher in the probiotic group corresponding to 5% higher than placebo (p = 0.068) in an adjusted model. There was no effect of probiotics on CRP (p = 0.331). At the endpoint, thymus size was inversely associated with CRP (p ≤ 0.040), diarrhea (p ≤ 0.050), and TI was also associated with the absence from daycare due to respiratory or gastrointestinal infections (p = 0.010). CONCLUSION The probiotic intervention had no effect on thymus size or CRP in Danish children at the age of starting daycare. IMPACT Overall there was no effect on thymus size of a combination of Lactobacillus rhamnosus, LGG® and Bifidobacterium animalis spp. lactis, BB-12® administered to Danish children starting daycare. This study examines the effect of probiotics on thymus size in healthy children when they start daycare thus exposed for infections while their immune system is still developing. This has to our knowledge not been described before. We found no significant difference in thymus size between the probiotic and placebo groups, but for thymus weight index, there was a trend. This should be investigated further in studies designed for this as primary outcome.
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Affiliation(s)
- Anni Larnkjær
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.
| | - Kim F Michaelsen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Maren J H Rytter
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.,Department of Pediatrics, Slagelse Hospital, Slagelse, Denmark
| | - Christian Mølgaard
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Rikke P Laursen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
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8
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Eriksen KG, Andersson M, Hunziker S, Zimmermann MB, Moore SE. Effects of an Iodine-Containing Prenatal Multiple Micronutrient on Maternal and Infant Iodine Status and Thyroid Function: A Randomized Trial in The Gambia. Thyroid 2020; 30:1355-1365. [PMID: 32183608 PMCID: PMC7482118 DOI: 10.1089/thy.2019.0789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background: Iodine supplementation is recommended to pregnant women in iodine-deficient populations, but the impact in moderate iodine deficiency is uncertain. We assessed the effect of an iodine-containing prenatal multiple micronutrient (MMN) supplement in a rural Gambian population at risk of moderate iodine deficiency. Materials and Methods: This study uses data and samples collected as a part of the randomized controlled trial Early Nutrition and Immune Development (ENID; ISRCTN49285450) conducted in Keneba, The Gambia. Pregnant women (<20 weeks gestation) were randomized to either a daily supplement of MMNs containing 300 μg of iodine or an iron and folic acid (FeFol) supplement. Randomization was double blinded (participants and investigators). The coprimary outcomes were maternal urinary iodine concentration (UIC) and serum thyroglobulin (Tg), assessed at baseline and at 30 weeks' gestation. Secondary outcomes were maternal serum thyrotropin (TSH), total triiodothyronine (TT3), total thyroxine (TT4) (assessed at baseline and at 30 weeks' gestation), breast milk iodine concentration (BMIC) (assessed at 8, 12, and 24 weeks postpartum), infant serum Tg (assessed at birth [cord], 12, and 24 weeks postpartum), and serum TSH (assessed at birth [cord]). The effect of supplementation was evaluated using mixed effects models. Results: A total of 875 pregnant women were enrolled between April 2010 and February 2015. In this secondary analysis, we included women from the MMN (n = 219) and FeFol (n = 219) arm of the ENID trial. At baseline, median (interquartile range or IQR) maternal UIC and Tg was 51 μg/L (33-82) and 22 μg/L (12-39), respectively, indicating moderate iodine deficiency. Maternal MMN supplement increased maternal UIC (p < 0.001), decreased maternal Tg (p < 0.001), and cord blood Tg (p < 0.001) compared with FeFol. Maternal thyroid function tests (TSH, TT3, TT4, and TT3/TT4 ratio) and BMIC did not differ according to maternal supplement group over the course of the study. Median (IQR) BMIC, maternal UIC, and infant Tg in the MMN group were 51 μg/L (35-72), 39 μg/L (25-64), and 87 μg/L (59-127), respectively, at 12 weeks postpartum, and did not differ between supplement groups. Conclusions: Supplementing moderately iodine-deficient women during pregnancy improved maternal iodine status and reduced Tg concentration. However, the effects were not attained postpartum and maternal and infant iodine nutrition remained inadequate during the first six months after birth. Consideration should be given to ensuring adequate maternal status through pregnancy and lactation in populations with moderate deficiency.
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Affiliation(s)
- Kamilla G. Eriksen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
- Address correspondence to: Kamilla G. Eriksen, PhD, Department of Nutrition, Exercise and Sports, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Copenhagen, Denmark
| | - Maria Andersson
- Division of Gastroenterology and Nutrition, Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
| | - Sandra Hunziker
- Human Nutrition Laboratory, Institute of Food, Nutrition, and Health, ETH Zurich, Zurich, Switzerland
| | - Michael B. Zimmermann
- Human Nutrition Laboratory, Institute of Food, Nutrition, and Health, ETH Zurich, Zurich, Switzerland
| | - Sophie E. Moore
- Department of Women and Children's Health, King's College London, London, United Kingdom
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9
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Abstract
Context: Population-based cohort studies have been pivotal in establishing a number of nutrition-health interactions, especially in high-income settings. Less research is available from low- and middle-income countries due to the lack of detailed longitudinal data. Objective: To describe the use of prospectively collected longitudinal data from the rural West Kiang region of The Gambia to explore nutrition-health interactions in a rural sub-Saharan African context. Methods: Demographic records initiated in 1947, coupled with data on maternal and child health, have been used to explore nutrition-health relationships. Results: An analysis of the longitudinal demographic data demonstrated a highly significant association between season of birth and infection-related adult mortality in this context. Additionally, using routine data on childhood anthropometry, it has been shown that, despite a significant decline in child undernutrition, rates remain unacceptably high, likely reflecting the very high socio-economic threshold required to eliminate undernutrition. Conclusion: The foresight to establish demographic data collection over seventy years ago has supported a wealth of novel research within a traditional African context. The availability of detailed clinical records on maternal and child health is helping to unravel the factors driving child undernutrition in rural Africa, and to identify targets for interventions to improve health in this context.
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Affiliation(s)
- Sophie E Moore
- Department of Women & Children's Health, King's College, London, UK.,MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, The Gambia
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10
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Laursen RP, Larnkjær A, Ritz C, Frøkiær H, Rytter MJH, Mølgaard C, Michaelsen KF. Thymus size is associated with breastfeeding and having pets in a sex-specific manner. Acta Paediatr 2020; 109:968-975. [PMID: 31606896 DOI: 10.1111/apa.15056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/04/2019] [Accepted: 10/10/2019] [Indexed: 11/29/2022]
Abstract
AIM The aim was to examine associations between thymus size and anthropometric measurements, sex, age, breastfeeding status, presence of siblings, household pets, and infections and allergies since birth in 8- to 13-month-old healthy Danish infants. METHODS Data collected from 256 healthy infants enrolled in the ProbiComp study were used. Thymus size was assessed using sonographic measures, and thymic index (TI) and thymus weight index (TWI) was used as an absolute and a relative volume estimate, respectively. RESULTS In terms of TI and TWI, boys had approximately 15% and 5% larger thymus than girls (P < .001 and P < .02, respectively). TWI was larger in girls who were still breastfed than girls who were no longer breastfed (β: 0.16 cm3 /kg; 95% CI: 0.004, 0.29; P = .01), but no difference was observed for boys. Having household pets was associated with a larger TI (P = .02), which seemed to be driven by associations for boys (β: 1.38 cm3 ; 95% CI: 0.02, 2.74). No other factors associated with thymus size were identified. CONCLUSION Thymus size was associated with current breastfeeding in girls and with having household pets in boys. Sex-specific associations should be further explored in future studies on factors associated with thymus size.
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Affiliation(s)
- Rikke P. Laursen
- Department of Nutrition, Exercise and Sports Faculty of Science University of Copenhagen Copenhagen Denmark
| | - Anni Larnkjær
- Department of Nutrition, Exercise and Sports Faculty of Science University of Copenhagen Copenhagen Denmark
| | - Christian Ritz
- Department of Nutrition, Exercise and Sports Faculty of Science University of Copenhagen Copenhagen Denmark
| | - Hanne Frøkiær
- Department of Veterinary and Animal Sciences Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
| | - Maren J. H. Rytter
- Department of Nutrition, Exercise and Sports Faculty of Science University of Copenhagen Copenhagen Denmark
- Department of PediatricsSlagelse Hospital Slagelse Denmark
| | - Christian Mølgaard
- Department of Nutrition, Exercise and Sports Faculty of Science University of Copenhagen Copenhagen Denmark
| | - Kim F. Michaelsen
- Department of Nutrition, Exercise and Sports Faculty of Science University of Copenhagen Copenhagen Denmark
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Jones KS, Meadows SR, Schoenmakers I, Prentice A, Moore SE. Vitamin D Status Increases During Pregnancy and in Response to Vitamin D Supplementation in Rural Gambian Women. J Nutr 2020; 150:492-504. [PMID: 31834380 PMCID: PMC7056615 DOI: 10.1093/jn/nxz290] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/11/2019] [Accepted: 11/05/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Vitamin D is important to maternal, fetal, and infant health, but quality data on vitamin D status in low- and middle-income countries and response to cholecalciferol supplementation in pregnancy are sparse. OBJECTIVE We characterized vitamin D status and vitamin D metabolite change across pregnancy and in response to cholecalciferol supplementation in rural Gambia. METHODS This study was a secondary analysis of samples collected in a 4-arm trial of maternal nutritional supplementation [iron folic acid (FeFol); multiple micronutrients (MMN); protein energy (PE) as lipid-based supplement; PE + MMN]; MMN included 10 μg/d cholecalciferol. Plasma 25-hydroxycholecalciferol [25(OH)D3], 24,25-dihydroxycholecalciferol [24,25(OH)2D3], and C3-epimer-25-hydroxycholecalciferol [3-epi-25(OH)D3] were measured by LC-MS/MS in 863 women [aged 30 ± 7 y (mean ± SD)] in early pregnancy (presupplementation) and late pregnancy, (gestational age 14 ± 3 and 30 ± 1 wk). Changes in 25(OH)D3 and vitamin D metabolite concentrations and associations with pregnancy stage and maternal age and anthropometry were tested. RESULTS Early pregnancy 25(OH)D3 concentration was 70 ± 15 nmol/L and increased according to pregnancy stage (82 ± 18 and 87 ± 17 nmol/L in the FeFol and PE-arms) and to cholecalciferol supplementation (95 ± 19 and 90 ± 20 nmol/L in the MMN and PE + MMN-arms) (P < 0.0001). There was no difference between supplemented groups. Early pregnancy 25(OH)D3 was positively associated with maternal age and gestational age. Change in 25(OH)D3 was negatively associated with late pregnancy, but not early pregnancy, triceps skinfold thickness. The pattern of change of 24,25(OH)2D3 mirrored that of 25(OH)D3 and appeared to flatten as pregnancy progressed, whereas 3-epi-25(OH)D3 concentration increased across pregnancy. CONCLUSION This study provides important data on the vitamin D status of a large cohort of healthy pregnant women in rural Africa. Without supplementation, vitamin D status increased during pregnancy, demonstrating that pregnancy stage should be considered when assessing vitamin D status. Nutritionally relevant cholecalciferol supplementation further increased vitamin D status. These data are relevant to the development of fortification and supplementation policies in pregnant women in West Africa.
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Affiliation(s)
- Kerry S Jones
- MRC Nutrition and Bone Health Research Group, MRC Elsie Widdowson Laboratory, Cambridge, UK,NIHR Nutritional Biomarker Laboratory, MRC Epidemiology Unit, University of Cambridge, Cambridge, UK,Address correspondence to KSJ (e-mail: )
| | - Sarah R Meadows
- MRC Nutrition and Bone Health Research Group, MRC Elsie Widdowson Laboratory, Cambridge, UK,NIHR Nutritional Biomarker Laboratory, MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Inez Schoenmakers
- MRC Nutrition and Bone Health Research Group, MRC Elsie Widdowson Laboratory, Cambridge, UK,Norwich Medical School, University of East Anglia, Norwich, UK
| | - Ann Prentice
- MRC Nutrition and Bone Health Research Group, MRC Elsie Widdowson Laboratory, Cambridge, UK,MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Sophie E Moore
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, The Gambia,Department of Women and Children's Health, King's College London, UK
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12
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Cruz-Chamorro I, Álvarez-Sánchez N, Escalante-Andicoechea C, Carrillo-Vico A, Rubio A, Guerrero JM, Molinero P, Lardone PJ. Temporal expression patterns of the melatoninergic system in the human thymus of children. Mol Metab 2019; 28:83-90. [PMID: 31378599 PMCID: PMC6822200 DOI: 10.1016/j.molmet.2019.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/12/2019] [Accepted: 07/21/2019] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVES To obtain greater knowledge of the extra-pineal sources of melatonin during development, the amount of indolamine and the expression levels of the last two enzymes involved in its biosynthesis, Arylalkylamine N-acetyltransferase (AANAT) and acetylserotonin O-methyltransferase (ASMT), were analyzed in the human thymus from children from three different age groups (from days to years). The melatonin membrane and nuclear receptor expression levels also were studied. METHODS Quantitative reverse transcriptase PCR and western blot were performed to investigate the receptor and enzyme expression levels. The results were examined and correlated with the ages of the thymuses. RESULTS We found high levels of indolamine in the thymuses of newborns (younger than 1 month), which decreased during development; thymuses from the months (from 2 to 11 months) and years (from 1 to 12 years) groups showed lower levels. A similar decline was also observed in the mRNA of the AANAT enzyme and the expression levels of melatonin receptors. However, ASMT expression was exactly the opposite, with low levels in the newborn group and higher levels in the years group. Our results show that the thymic synthesis of melatonin occurs very early in childhood. Additionally, this is the first report that is focused on melatonin receptors expression in the human thymus. CONCLUSION Considering the limited melatonin synthesis performed by the newborn pineal gland, we suggest that the high levels of melatonin found in human thymus in this experimental group arise from synthesis in the tissue itself, which could be contributing to the immune efficiency at the thymic level.
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Affiliation(s)
- Ivan Cruz-Chamorro
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain; Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Universidad de Sevilla, Avda. Sanchez Pizjuan S/N, 41009, Seville, Spain
| | - Nuria Álvarez-Sánchez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain
| | - Cristina Escalante-Andicoechea
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain
| | - Antonio Carrillo-Vico
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain; Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Universidad de Sevilla, Avda. Sanchez Pizjuan S/N, 41009, Seville, Spain
| | - Amalia Rubio
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain; Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Universidad de Sevilla, Avda. Sanchez Pizjuan S/N, 41009, Seville, Spain
| | - Juan Miguel Guerrero
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain; Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Universidad de Sevilla, Avda. Sanchez Pizjuan S/N, 41009, Seville, Spain; Departamento de Bioquímica Clínica, Hospital Universitario Virgen del Rocío, Avda. Manuel Siurot S/N, 41013, Seville, Spain
| | - Patrocinio Molinero
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain; Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Universidad de Sevilla, Avda. Sanchez Pizjuan S/N, 41009, Seville, Spain
| | - Patricia J Lardone
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot S/N, 41013, Seville, Spain; Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Universidad de Sevilla, Avda. Sanchez Pizjuan S/N, 41009, Seville, Spain.
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Okala SG, Darboe MK, Sosseh F, Sonko B, Faye-Joof T, Prentice AM, Moore SE. Impact of nutritional supplementation during pregnancy on antibody responses to diphtheria-tetanus-pertussis vaccination in infants: A randomised trial in The Gambia. PLoS Med 2019; 16:e1002854. [PMID: 31386660 PMCID: PMC6684039 DOI: 10.1371/journal.pmed.1002854] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 06/27/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Exposure to a nutritionally deficient environment during fetal life and early infancy may adversely alter the ontogeny of the immune system and affect an infant's ability to mount an optimal immune response to vaccination. We examined the effects of maternal nutritional supplementation during pregnancy on infants' antibody responses to the diphtheria-tetanus-pertussis (DTP) vaccine included in the Expanded Programme on Immunisation (EPI). METHODS AND FINDINGS The Early Nutrition and Immune Development (ENID) trial was a randomised, partially blinded trial conducted between April 2010 and February 2015 in the rural West Kiang region of The Gambia, a resource-poor region affected by chronic undernutrition. Pregnant women (<20 weeks' gestation) with a singleton pregnancy (n = 875) were randomised to receive one of four supplements: iron-folic acid (FeFol; standard of care), multiple micronutrient (MMN), protein-energy (PE), or PE + MMN daily from enrolment (mean [SD] 13.7 [3.3] weeks' gestation) until delivery. Infants were administered the DTP vaccine at 8, 12, and 16 weeks of age according to the Gambian Government protocol. Results for the primary outcome of the trial (infant thymic size) were described previously; here, we report on a secondary outcome, infant antibody response to vaccination. The effects of supplementation on mean DTP antibody titres measured in blood samples collected from infants at 12 weeks (n = 710) and 24 weeks (n = 662) were analysed with adjustment for confounders including maternal age, compliance to supplement, and infant sex and season. At 12 weeks, following a single dose of the vaccine, compared with FeFol (mean 95% confidence interval [CI]; 0.11 IU/mL, 0.09-0.12), antenatal supplementation with MMN or MMN + PE resulted in 42.4% (95% CI 20.1-64.6; p < 0.001) and 29.4% (6.4-52.5; p = 0.012) higher mean anti-diphtheria titres, respectively. Mean anti-tetanus titres were higher by 9.0% (5.5-12.5), 7.8% (4.3-11.4), and 7.3% (4.0-10.7) in MMN, PE, and PE + MMN groups (all, p < 0.001), respectively, than in the FeFol group (0.55 IU/mL, 0.52-0.58). Mean anti-pertussis titres were not significantly different in the FeFol, MMN, and PE + MNN groups but were all higher than in the PE group (all, p < 0.001). At 24 weeks, following all three doses, no significant differences in mean anti-diphtheria titres were detected across the supplement groups. Mean anti-tetanus titres were 3.4% (0.19-6.5; p = 0.038) higher in the PE + MMN group than in the FeFol group (3.47 IU/mL, 3.29-3.66). Mean anti-pertussis titres were higher by 9.4% (3.3-15.5; p = 0.004) and 15.4% (9.6-21.2; p < 0.001) in PE and PE + MMN groups, compared with the FeFol group (74.9 IU/mL, 67.8-82.8). Limitations of the study included the lack of maternal antibody status (breast milk or plasma) or prevaccination antibody measurements in the infants. CONCLUSION According to our results from rural Gambia, maternal supplementation with MMN combined with PE during pregnancy enhanced antibody responses to the DTP vaccine in early infancy. Provision of nutritional supplements to pregnant women in food insecure settings may improve infant immune development and responses to EPI vaccines. TRIAL REGISTRATION ISRCTN49285450.
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Affiliation(s)
- Sandra G. Okala
- Kings’ College London, Department of Women and Children’s Health, St Thomas’ Hospital, London, United Kingdom
| | - Momodou K. Darboe
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Fatou Sosseh
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Bakary Sonko
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Tisbeh Faye-Joof
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Andrew M. Prentice
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Sophie E. Moore
- Kings’ College London, Department of Women and Children’s Health, St Thomas’ Hospital, London, United Kingdom
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
- * E-mail:
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