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Bell V, Rodrigues AR, Ferrão J, Varzakas T, Fernandes TH. The Policy of Compulsory Large-Scale Food Fortification in Sub-Saharan Africa. Foods 2024; 13:2438. [PMID: 39123628 PMCID: PMC11312076 DOI: 10.3390/foods13152438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 07/27/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
Food fortification with micronutrients was initially justified in developed countries by a lack of availability of micronutrients in staple crops, mainly due to soil exhaustion. However, in Sub-Saharan arable lands, soil fatigue is not predominant, and communities consume mostly home-grown, organic, non-processed crops. Sub-Saharan food systems are nevertheless deeply entwined with food insecurity, driver of illnesses. Family production can promote subsistence, food stability, and self-sufficiency, the main SSA setback being the vicious cycle of poverty and the lack of dietary variety, contributing to malnutrition. Poverty reduction and women's education are significant strategies for reducing child and adolescent undernourishment. Fortification of foods consumed daily by individuals makes sense and can minimize, if not entirely, eliminate deficiencies. Compulsory mass fortification of foods in Sub-Saharan Africa (SSA) with single micronutrients is, however, controversial since they work in synergy among each other and with the food matrix, for optimal absorption and metabolism. Since the causes of malnutrition are many, caused by diverse, unequal, and unjust food distribution, interrelated with political, social, cultural, or economic factors, education status of the population, season and climatic changes, and effectiveness of nutrition programs, just food fortification cannot solve the composite of all these elements. Further, compulsory fortification is excessive, unproductive, and likely harmful to human health, while many challenges remain in assessing the quality of available premixes. Furthermore, aiming at dietary diversification is the best approach of increasing trace element intake from commonly accessible and easily available food sources.
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Affiliation(s)
- Victoria Bell
- Faculty of Pharmacy, University of Coimbra, Polo das Ciências da Saúde, Azinhaga de Stª Comba, 3000-548 Coimbra, Portugal; (V.B.)
- REQUIMTE/LAQV, Group of Pharmaceutical Technology, University of Coimbra, Polo das Ciências da Saúde, Azinhaga de Stª Comba, 3000-548 Coimbra, Portugal
| | - Ana Rita Rodrigues
- Faculty of Pharmacy, University of Coimbra, Polo das Ciências da Saúde, Azinhaga de Stª Comba, 3000-548 Coimbra, Portugal; (V.B.)
| | - Jorge Ferrão
- Vice-Chancellor Office, Universidade Pedagógica de Maputo, Rua João Carlos Raposo Beirão 135, Maputo 1000-001, Mozambique;
| | - Theodoros Varzakas
- Food Science and Technology, University of the Peloponnese, GR-22100 Kalamata, Greece
| | - Tito H. Fernandes
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
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Bah M, Verhoef H, Okoh E, Bah A, Prentice AM, Cerami C. Haem iron versus ferrous iron salts to treat iron deficiency anaemia in Gambian children: protocol for randomised controlled trial {1}. Trials 2024; 25:270. [PMID: 38641845 PMCID: PMC11027386 DOI: 10.1186/s13063-024-08101-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND The World Health Organization recommends universal iron supplementation for children aged 6-23 months in countries where anaemia is seen in over 40% of the population. Conventional ferrous salts have low efficacy due to low oral absorption in children with inflammation. Haem iron is more bioavailable, and its absorption may not be decreased by inflammation. This study aims to compare daily supplementation with haem iron versus ferrous sulphate on haemoglobin concentration and serum ferritin concentration after 12 weeks of supplementation. METHODS This will be a two-arm, randomised controlled trial. Gambian children aged 6-12 months with anaemia will be recruited within a predefined geographical area and recruited by trained field workers. Eligible participants will be individually randomised using a 1:1 ratio within permuted blocks to daily supplementation for 12 weeks with either 10.0 mg of elemental iron as haem or ferrous sulphate. Safety outcomes such as diarrhoea and infection-related adverse events will be assessed daily by the clinical team (see Bah et al. Additional file 4_Adverse event eCRF). Linear regression will be used to analyse continuous outcomes, with log transformation to normalise residuals as needed. Binary outcomes will be analysed by binomial regression or logistic regression, Primary analysis will be by modified intention-to-treat (i.e., those randomised and who ingested at least one supplement dose of iron), with multiple imputations to replace missing data. Effect estimates will be adjusted for baseline covariates (C-reactive protein, alpha-1-acid glycoprotein, haemoglobin, ferritin, soluble transferrin receptor). DISCUSSION This study will determine if therapeutic supplementation with haem iron is more efficacious than with conventional ferrous sulphate in enhancing haemoglobin and ferritin concentrations in anaemic children aged 6-12 months. TRIAL REGISTRATION Pan African Clinical Trial Registry PACTR202210523178727.
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Affiliation(s)
- Mamadou Bah
- Medical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia
- Division of Human Nutrition and Health, Wageningen University, PO Box 17, 6700, AA, Wageningen, The Netherlands
| | - Hans Verhoef
- Division of Human Nutrition and Health, Wageningen University, PO Box 17, 6700, AA, Wageningen, The Netherlands
| | - Emmanuel Okoh
- Medical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia
| | - Abdoulie Bah
- Medical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia
| | - Andrew M Prentice
- Medical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia
| | - Carla Cerami
- Medical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia.
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Werner ER, Arnold CD, Caswell BL, Iannotti LL, Maleta KM, Stewart CP. Associations of fish and meat intake with iron and anaemia in Malawian children. MATERNAL & CHILD NUTRITION 2024; 20:e13622. [PMID: 38217291 PMCID: PMC10981481 DOI: 10.1111/mcn.13622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/15/2024]
Abstract
Animal flesh foods are rich in bioavailable iron but infrequently consumed by young children. We aimed to determine whether flesh food intake was associated with iron and anaemia status among 585 Malawian infants enroled in a 6-month egg-feeding trial. The percentage of days of small fish, large fish and meat consumption were assessed through weekly 7-day animal-source food screeners. Grams of intake were assessed through 24-h recalls conducted at 6-9, 9-12 and 12-15 months of age. Plasma ferritin, soluble transferrin receptor (sTfR) and haemoglobin concentrations were measured at 6-9 and 12-15 months of age. Iron biomarkers were adjusted for inflammation during analysis. At enrolment, each flesh food category was consumed by <5% of children in the past 24 h. Over the next 6 months, small fish, large fish and meat were consumed on 25%, 8% and 6% of days, respectively, with mean usual intakes of <5 g/day. More frequent small fish consumption was associated with lower sTfR (geometric mean ratio [95% CI]: 0.98 mg/L [0.96, 1.00] per 10 percentage point difference) but not ferritin (1.03 µg/L [0.98, 1.07]) or haemoglobin (1.01 g/dL [1.00, 1.01]). Large fish consumption was associated with higher anaemia (prevalence ratio [95% CI]: 1.09 [1.01, 1.19]) and lower iron deficiency (0.96 [0.93, 1.00]) prevalence. Gram intakes of flesh food categories were not associated with any iron or anaemia indicators. Small fish were a primary contributor to flesh food intake in this cohort of Malawian children, although usual portions were small. Fish was associated with modest improvements to iron status, but meat was too infrequent to be associated with anaemia and iron deficiency.
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Affiliation(s)
- E. Rochelle Werner
- Institute for Global NutritionUniversity of California, DavisDavisCaliforniaUSA
- Department of Global Health, Rollins School of Public HealthEmory UniversityAtlantaGeorgiaUSA
| | - Charles D. Arnold
- Institute for Global NutritionUniversity of California, DavisDavisCaliforniaUSA
| | - Bess L. Caswell
- Institute for Global NutritionUniversity of California, DavisDavisCaliforniaUSA
- U.S. Department of AgricultureWestern Human Nutrition Research CenterDavisCaliforniaUSA
| | - Lora L. Iannotti
- E3 Nutrition LabWashington University in St. LouisSt. LouisMissouriUSA
| | - Kenneth M. Maleta
- School of Global and Public HealthKamuzu University of Health SciencesBlantyreMalawi
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Choque-Quispe BM, Vásquez-Velásquez C, Gonzales GF. Evaluation of dietary composition between hemoglobin categories, total body iron content and adherence to multi-micronutrients in preschooler residents of the highlands of Puno, Peru. BMC Nutr 2024; 10:28. [PMID: 38347656 PMCID: PMC10860272 DOI: 10.1186/s40795-024-00837-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 02/05/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND The anemia prevalence is higher in highlands populations. It is assumed that iron deficiency anemia (IDA) in children is mainly due to low dietary intake. However, other suggest that high prevalence of anemia is due to an inappropriate hemoglobin (Hb) adjustment for altitude. MATERIALS AND METHODS Cross-sectional study conducted in 338 preschoolers (PSC) from Puno-Peru. Hb was measured in whole blood, and ferritin, Soluble transferrin receptor, and Interleukin 6 in serum.The dietary iron intake was assessed by 24-h dietary recall, using NutriCap Software. Hb concentration was assessed as adjusted or unadjusted for altitude. RESULTS With unadjusted Hb, the anemia prevalence was 4.7%, whereas after Hb correction, the prevalence raised-up to 65.6% (p < 0.001). Reciprocally, erythrocytosis proportion decreased from 20.35 to 0.30% (p < 0.001). Total Body Iron (TBI) showed that 7.44% had ID and 0.32% had IDA. PSC with normal unadjusted Hb levels have more protein and micronutrients intake than anemic ones. PSC with erythrocytosis consumed less fat, and more niacin and ascorbic acid than anemics. Total iron intake was lower in anemic than the other groups, but without statistical significance due to the standard deviation of the data in a small number of anemic PSC (n = 16). TBI, unadjusted Hb, and adjusted Hb were not different between groups consuming or not multimicronutrients. CONCLUSIONS The consumption of iron and iron status in children who live at high altitude is adequate, and that anemia could be due to other micronutrient deficiencies and/or that the adjustment of Hb by altitude is inappropriate.
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Affiliation(s)
| | - Cinthya Vásquez-Velásquez
- Laboratorio de Endocrinología y Reproducción (Laboratorios de Investigación y Desarrollo), Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias e Ingeniería, Universidad Peruana Cayetano Heredia, Lima, Peru.
- Instituto de Investigaciones de la Altura, Universidad Peruana Cayetano Heredia, Lima, Peru.
| | - Gustavo F Gonzales
- Laboratorio de Endocrinología y Reproducción (Laboratorios de Investigación y Desarrollo), Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias e Ingeniería, Universidad Peruana Cayetano Heredia, Lima, Peru
- Instituto de Investigaciones de la Altura, Universidad Peruana Cayetano Heredia, Lima, Peru
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Zhang S, Wang L, Luo R, Rozelle S, Sylvia S. The medium-term impact of a micronutrient powder intervention on anemia among young children in Rural China. BMC Public Health 2024; 24:426. [PMID: 38336627 PMCID: PMC10858501 DOI: 10.1186/s12889-024-17895-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Poor development of young children is a common issue in developing countries and it is well established that iron deficiency anemia is one of the risk factors. Research has shown that iron deficiency is a common micronutrient deficiency among children in rural China and can result in anemia. A previous paper using data from the same trial as those used in the current study, but conducted when sample children were younger, found that after 6 months of providing caregivers of children 6-11 months of age free access to iron-rich micronutrient powder (MNP) increased the hemoglobin concentrations (Hb) of their children. However, no effects were found 12 and 18 months after the intervention. The current study followed up the children four years after the start of the original intervention (when the children were 4-5 years old) and aims to assess the medium-term impacts of the MNP program on the nutritional status of the sample pre-school-aged children, including their levels of Hb, the prevalence of anemia, and the dietary diversity of the diets of the children. METHODS At baseline, this study sampled 1,802 children aged 6-11 months in rural Western China. The intervention lasted 18 months. In this medium-term follow-up study that successfully followed 81% (n = 1,464) of children (aged 49-65 months) from the original study population 4 years after the start of the intervention, we used both intention-to-treat (ITT) effect and average treatment on the treated effect (ATT) analyses to assess the medium-term impacts of the MNP distribution program on the nutritional status of sample children. RESULTS The ITT analysis shows that the MNP intervention decreased the prevalence of anemia of young children in the medium run by 8% (4 percentage points, p < 0.1). The ATT analysis shows that consuming 100 (out of 540) MNP sachets during the initial intervention led to a decrease in anemia of 4% (2 percentage points, p < 0.1). Among children with moderate anemia at baseline (Hb < 100 g/L), the intervention reduced the probability of anemia by 45% (9 percentage points, p < 0.1), and, for those families that complied by consuming 100 (out of 540) sachets, a 25% (5 percentage points, p < 0.05) reduction in the anemia rate was found. The MNP intervention also led to a persistent increase in dietary diversity among children that were moderately anemic at baseline. The results from the quantile treatment effect analysis demonstrated that children with lower Hb levels at baseline benefited relatively more from the MNP intervention. CONCLUSIONS The findings of the current study reveal that the MNP intervention has medium-term effects on the nutritional status of children in rural China. The impacts of the MNP program were relatively higher for children that initially had more severe anemia levels. Hence, the implications of this study are that programs that aim to increase caregiver knowledge of nutrition and improve their feeding practices should be encouraged across rural China. Families, policymakers, and China's society overall need to continue to pay more attention to problems of childhood anemia in rural areas. This is particularly crucial for families with moderately anemic children at an early age as it can significantly contribute to improving the anemia status of children across rural areas of China. TRIAL REGISTRATION ISRCTN44149146 (15/04/2013).
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Affiliation(s)
- Siqi Zhang
- International Business School, Shaanxi Normal University, Xi'an, China
| | - Lei Wang
- International Business School, Shaanxi Normal University, Xi'an, China.
| | - Renfu Luo
- Center for Agricultural Policy, School of Advanced Agricultural Sciences, Peking University, Beijing, China
| | - Scott Rozelle
- Stanford Center On China's Economy and Institutions, Stanford University, Stanford, CA, USA
| | - Sean Sylvia
- Department of Health Policy and Management, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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de Romaña DL, Mildon A, Golan J, Jefferds MED, Rogers LM, Arabi M. Review of intervention products for use in the prevention and control of anemia. Ann N Y Acad Sci 2023; 1529:42-60. [PMID: 37688369 PMCID: PMC10876383 DOI: 10.1111/nyas.15062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
Anemia remains a major public health problem, especially in low- and middle-income countries. The World Health Organization recommends several interventions to prevent and manage anemia in vulnerable population groups, including young children, menstruating adolescent girls and women, and pregnant and postpartum women. Daily iron supplementation reduces the risk of anemia in infants, children, and pregnant women, and intermittent iron supplementation reduces anemia risk in menstruating girls and women. Micronutrient powders reduce the risk of anemia in children. Fortifying wheat flour with iron reduces the risk of anemia in the overall population, whereas the effect of fortifying maize flour and rice is still uncertain. Regarding non-nutrition-related interventions, malaria treatment and deworming have been reported to decrease anemia prevalence. Promising interventions to prevent anemia include vitamin A supplementation, multiple micronutrient supplementation for pregnant women, small-quantity lipid-based supplements, and fortification of salt with iodine and iron. Future research could address the efficacy and safety of different iron supplementation formulations, identify the most bioavailable form of iron for fortification, examine adherence to supplementation regimens and fortification standards, and investigate the effectiveness of integrating micronutrient, helminth, and malaria control programs.
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Affiliation(s)
| | - Alison Mildon
- Global Technical Services, Nutrition International, Ottawa, Ontario, Canada
| | - Jenna Golan
- Global Technical Services, Nutrition International, Ottawa, Ontario, Canada
| | | | - Lisa M. Rogers
- Department of Nutrition and Food Safety, World Health Organization, Geneva, Switzerland
| | - Mandana Arabi
- Global Technical Services, Nutrition International, Ottawa, Ontario, Canada
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Karthikappallil R, Atkinson SH. Universal iron supplementation: the best strategy to tackle childhood anaemia in malaria-endemic countries? Wellcome Open Res 2023; 8:345. [PMID: 37786779 PMCID: PMC10541535 DOI: 10.12688/wellcomeopenres.19750.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2023] [Indexed: 10/04/2023] Open
Abstract
Iron deficiency presents a major public health concern in many malaria-endemic regions, and both conditions affect young children most severely. Daily iron supplementation is the standard public health intervention recommended to alleviate rates of iron deficiency in children, but there is controversy over whether universal supplementation could increase the incidence and severity of malaria infection. Current evidence suggests that iron supplementation of deficient individuals is safe and effective in high-transmission settings when accompanied by malaria prevention strategies. However, low-resource settings often struggle to effectively control the spread of malaria, and it remains unclear whether supplementation of iron replete individuals could increase their risk of malaria and other infections. This review explores the evidence for and against universal iron supplementation programmes, and alternative strategies that could be used to alleviate iron deficiency in malaria-endemic areas, while minimising potential harm.
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Affiliation(s)
- Roshan Karthikappallil
- Department of Paediatrics, University of Oxford, Oxford, England, UK
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, England, UK
| | - Sarah H. Atkinson
- Department of Paediatrics, University of Oxford, Oxford, England, UK
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, England, UK
- Kenya Medical Research Institute (KEMRI) Centre for Geographic Medicine Coast, KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
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Haque NB, Mihrshahi S, Haider R. Peer counselling as an approach to improve complementary feeding practices: a narrative review. JOURNAL OF HEALTH, POPULATION, AND NUTRITION 2023; 42:60. [PMID: 37403126 DOI: 10.1186/s41043-023-00408-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 06/28/2023] [Indexed: 07/06/2023]
Abstract
BACKGROUND Appropriate complementary feeding can help reduce the risk of malnutrition and is especially important in Asian and African countries. Peer counselling has been used as an approach to improve complementary feeding practices and is often combined with other interventions, like food fortification or supplements, or as a part of broader nutrition education program. The aim of this narrative review is to assess the effectiveness of peer counselling on improving complementary feeding practices in Asian and African countries. METHODS We searched through seven electronic databases: CINAHL, MEDLINE (OVID), PubMed, Embase, Web of Science, the Cochrane Library and WHO Global Health library from 2000 to April 2021, and had the following inclusion criteria. Studies were included if they were community- or hospital-based, had infants aged 5-24 months old, had individual or group peer counselling, and the effects of peer counselling on complementary feeding practices were measured. Methodological quality was assessed using the Joanna Briggs Institute's critical appraisal checklist for evidence studies. RESULTS Out of 6 studies that met the above criteria, 3 studies were randomised controlled trials and 3 were quasi-experimental studies. In Bangladesh, India, Nepal and Somalia, peer counselling was found to be effective in improving timely initiation of complementary feeding, minimum meal frequency and minimum dietary diversity in all of our selected studies. In addition, improvement in breastfeeding practices, complementary foods preparation, hygiene, psychological stimulation for cognitive development of children and mothers' understanding of hunger cues were observed in some of our selected studies. CONCLUSIONS This review evaluates the effectiveness of peer counselling to improve complementary feeding practices in Asian and African countries. Peer counselling improves timely complementary feeding and ensures the correct proportions and consistency of foods including adequate amounts of food is given. Other important complementary feeding indicators like minimum dietary diversity, minimum meal frequency and minimum acceptable diet can also be increased through peer-counselling interventions. Peer counselling is well known to enhance the rate of breastfeeding practices, but this review suggests it is also effective for complementary feeding and may inform future nutrition programs to extend the length of peer counselling for mothers.
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Affiliation(s)
- Nabila Binte Haque
- Department of Health Systems and Populations, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, 2109, Australia.
| | - Seema Mihrshahi
- Department of Health Systems and Populations, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Rukhsana Haider
- Health and Nutrition (TAHN) Foundation, Banani, Dhaka, 1213, Bangladesh
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Ye R, Wu Y, Sun C, Wang Q, Mao Y, Zhou H, Raat H. Diffusion of a micronutrient home fortification program for infants and toddlers in a multi-ethnic population in rural western China. BMC Public Health 2023; 23:889. [PMID: 37189089 DOI: 10.1186/s12889-023-15746-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 04/24/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND The micronutrient home fortification programs contribute to the prevention of childhood anemia. WHO suggested applying culturally appropriate strategies to implement the micronutrient home fortification programs in various communities. However, there is little knowledge on evidence-based effective diffusion strategies of the micronutrient home fortification programs in multi-ethnic populations. This study aims to examine the diffusion of a micronutrient home fortification program with micronutrient powder (MNP) in a multi-ethnic population by investigating factors associated with being an 'early' or a 'later' adopter of MNP. METHODS We conducted a cross-sectional study in rural western China. Multistage sampling was used to select children's caregivers in Han, Tibetan, and Yi ethnic communities (N = 570). The diffusion of innovations theory informed the data collection on caregivers' decision process and was applied to classify participants into the MNP adopter categories of 'leaders', 'followers', 'loungers', and 'laggards'. The ordered logistic regression model estimated the factors associated with the MNP adopter categories. RESULTS Caregivers from the Yi ethnic subgroup were likely to adopt MNP relatively late (AOR = 1.67; 95%CI = 1.09, 2.54) compared with Han and Tibetan ethnic subgroups. Caregivers with more knowledge regarding the MNP feeding method (AOR = 0.71; 95%CI = 0.52, 0.97) and those with stronger self-efficacy in adopting MNP (AOR = 0.85; 95%CI = 0.76, 0.96) were more likely to adopt MNP earlier than others. The following messages and channels also tend to make caregivers adopt MNP earlier: hearing that 'MNP was free' from villagers (AOR = 0.45; 95%CI = 0.20, 0.98), and learning 'MNP feeding method' from township doctors (AOR = 0.16; 95%CI = 0.06, 0.48). CONCLUSIONS Disparities in adopting MNP existing among different ethnic groups require more effective diffusion strategies in disadvantaged minority ethnic groups. Enhancing self-efficacy in adopting MNP and knowledge on feeding method of MNP have the potential to make caregivers adopt MNP earlier. Peer networks and township doctors can be effective agencies to facilitate the diffusion and adoption of MNP.
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Affiliation(s)
- Ruixue Ye
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuju Wu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chang Sun
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qingzhi Wang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuping Mao
- Department of Communication Studies, College of Liberal Arts, California State University Long Beach, Long Beach, CA, USA
| | - Huan Zhou
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Hein Raat
- Department of Public Health, Erasmus University Medical Center, Rotterdam, Netherlands
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Omer A, Hailu D, Whiting SJ. Child-Owned Poultry Intervention Effects on Hemoglobin, Anemia, Concurrent Anemia and Stunting, and Morbidity Status of Young Children in Southern Ethiopia: A Cluster Randomized Controlled Community Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5406. [PMID: 37048019 PMCID: PMC10094074 DOI: 10.3390/ijerph20075406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/26/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Cereal-based diets contribute to anemia in Ethiopian children. Eggs have nutrients to boost hemoglobin levels as well as counter concurrent anemia and stunting (CAS) and morbidity status. A community trial, targeting 6-18 months old children, was conducted in Halaba. Two clusters were randomly selected and allocated to intervention (N = 122) and control (N = 121) arms. Intervention group (IG) children received egg-laying hens with caging in a cultural ceremony declaring child ownership of the chickens. Parents promised to feed eggs to the child. Health and agriculture extension workers promoted egg feeding, poultry husbandry, and sanitation to IG families. Control group (CG) had standard health and agriculture education. At baseline, groups were not different by hemoglobin, anemia, CAS, and morbidity status. Mean hemoglobin was 11.0 mg/dl and anemia prevalence was 41.6%. About 11.9% of children had CAS and 52.3% were sick. Using generalized estimating equations, the intervention increased hemoglobin by 0.53 g/dl (ß:0.53; p < 0.001; 95%CI: 0.28-0.79). IG children were 64% (p < 0.001; odds ratio [OR]:0.36; 95%CI: 0.24-0.54) and 57% (p = 0.007; OR: 0.43; 95%CI: 0.21-0.73) less likely to be anemic and have CAS, respectively, than CG, with no difference in morbidity. Child-owned poultry intervention is recommended in settings where anemia is high and animal-source food intake is low.
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Affiliation(s)
- Anteneh Omer
- School of Nutrition, Food Science and Technology, Hawassa University, Hawassa P.O. Box 5, Ethiopia
| | - Dejene Hailu
- School of Public Health, Hawassa University, Hawassa P.O. Box 5, Ethiopia
| | - Susan Joyce Whiting
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
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Imdad A, Rogner J, Sherwani RN, Sidhu J, Regan A, Haykal MR, Tsistinas O, Smith A, Chan XHS, Mayo-Wilson E, Bhutta ZA. Zinc supplementation for preventing mortality, morbidity, and growth failure in children aged 6 months to 12 years. Cochrane Database Syst Rev 2023; 3:CD009384. [PMID: 36994923 PMCID: PMC10061962 DOI: 10.1002/14651858.cd009384.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
BACKGROUND Zinc deficiency is prevalent in low- and middle-income countries, and is considered a significant risk factor for morbidity, mortality, and linear growth failure. The effectiveness of preventive zinc supplementation in reducing prevalence of zinc deficiency needs to be assessed. OBJECTIVES To assess the effects of zinc supplementation for preventing mortality and morbidity, and for promoting growth, in children aged 6 months to 12 years. SEARCH METHODS A previous version of this review was published in 2014. In this update, we searched CENTRAL, MEDLINE, Embase, five other databases, and one trials register up to February 2022, together with reference checking and contact with study authors to identify additional studies. SELECTION CRITERIA Randomized controlled trials (RCTs) of preventive zinc supplementation in children aged 6 months to 12 years compared with no intervention, a placebo, or a waiting list control. We excluded hospitalized children and children with chronic diseases or conditions. We excluded food fortification or intake, sprinkles, and therapeutic interventions. DATA COLLECTION AND ANALYSIS Two review authors screened studies, extracted data, and assessed the risk of bias. We contacted study authors for missing information and used GRADE to assess the certainty of evidence. The primary outcomes of this review were all-cause mortality; and cause-specific mortality, due to all-cause diarrhea, lower respiratory tract infection (LRTI, including pneumonia), and malaria. We also collected information on a number of secondary outcomes, such as those related to diarrhea and LRTI morbidity, growth outcomes and serum levels of micronutrients, and adverse events. MAIN RESULTS We included 16 new studies in this review, resulting in a total of 96 RCTs with 219,584 eligible participants. The included studies were conducted in 34 countries; 87 of them in low- or middle-income countries. Most of the children included in this review were under five years of age. The intervention was delivered most commonly in the form of syrup as zinc sulfate, and the most common dose was between 10 mg and 15 mg daily. The median duration of follow-up was 26 weeks. We did not consider that the evidence for the key analyses of morbidity and mortality outcomes was affected by risk of bias. High-certainty evidence showed little to no difference in all-cause mortality with preventive zinc supplementation compared to no zinc (risk ratio (RR) 0.93, 95% confidence interval (CI) 0.84 to 1.03; 16 studies, 17 comparisons, 143,474 participants). Moderate-certainty evidence showed that preventive zinc supplementation compared to no zinc likely results in little to no difference in mortality due to all-cause diarrhea (RR 0.95, 95% CI 0.69 to 1.31; 4 studies, 132,321 participants); but probably reduces mortality due to LRTI (RR 0.86, 95% CI 0.64 to 1.15; 3 studies, 132,063 participants) and mortality due to malaria (RR 0.90, 95% CI 0.77 to 1.06; 2 studies, 42,818 participants); however, the confidence intervals around the summary estimates for these outcomes were wide, and we could not rule out a possibility of increased risk of mortality. Preventive zinc supplementation likely reduces the incidence of all-cause diarrhea (RR 0.91, 95% CI 0.90 to 0.93; 39 studies, 19,468 participants; moderate-certainty evidence) but results in little to no difference in morbidity due to LRTI (RR 1.01, 95% CI 0.95 to 1.08; 19 studies, 10,555 participants; high-certainty evidence) compared to no zinc. There was moderate-certainty evidence that preventive zinc supplementation likely leads to a slight increase in height (standardized mean difference (SMD) 0.12, 95% CI 0.09 to 0.14; 74 studies, 20,720 participants). Zinc supplementation was associated with an increase in the number of participants with at least one vomiting episode (RR 1.29, 95% CI 1.14 to 1.46; 5 studies, 35,192 participants; high-certainty evidence). We report a number of other outcomes, including the effect of zinc supplementation on weight and serum markers such as zinc, hemoglobin, iron, copper, etc. We also performed a number of subgroup analyses and there was a consistent finding for a number of outcomes that co-supplementation of zinc with iron decreased the beneficial effect of zinc. AUTHORS' CONCLUSIONS Even though we included 16 new studies in this update, the overall conclusions of the review remain unchanged. Zinc supplementation might help prevent episodes of diarrhea and improve growth slightly, particularly in children aged 6 months to 12 years of age. The benefits of preventive zinc supplementation may outweigh the harms in regions where the risk of zinc deficiency is relatively high.
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Affiliation(s)
- Aamer Imdad
- Department of Pediatrics, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Jaimie Rogner
- Departments of Medicine and Pediatrics, University of Rochester Medical Center, Rochester, NY, USA
| | - Rida N Sherwani
- Department of Pediatrics, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Jasleen Sidhu
- Norton College of Medicine, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Allison Regan
- Norton College of Medicine, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Maya R Haykal
- Norton College of Medicine, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Olivia Tsistinas
- Health Sciences Library, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Abigail Smith
- Health Sciences Library, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Xin Hui S Chan
- Pandemic Sciences Institute, University of Oxford, Oxford, UK
| | - Evan Mayo-Wilson
- Department of Epidemiology, UNC Gillings School of Global Public HealthMcGavran-Greenberg Hall, Chapel Hill, NC, USA
| | - Zulfiqar A Bhutta
- Centre for Global Child Health, The Hospital for SickKids, Toronto, Canada
- Center of Excellence for Women and Child Health, Aga Khan University, Karachi, Pakistan
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Locks LM, Newell KB, Imohe A, Moloney GM, Shaker-Berbari L, Paudyal N, Jefferds MED. The effect of interventions distributing home fortification products on infant and young child feeding (IYCF) practices: A systematic narrative review. MATERNAL & CHILD NUTRITION 2023:e13488. [PMID: 36842164 DOI: 10.1111/mcn.13488] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/14/2022] [Accepted: 01/26/2023] [Indexed: 02/27/2023]
Abstract
Interventions distributing micronutrient powders (MNPs) and small-quantity lipid-based nutrient supplements (SQ-LNS), or home fortification products (HFPs), have the potential to improve infant and young child feeding (IYCF) practices and children's nutrition. We systematically searched for studies on the effect of interventions distributing HFP on IYCF practices. We identified 12 (8 MNP, 4 SQ-LNS) studies: seven programmes with IYCF behaviour change communications (BCC) and MNP (IYCF-MNP) and one provided MNP without IYCF BCC (MNP only). Three SQ-LNS studies came from randomised trials without an IYCF component (SQ-LNS only) and one from a programme with both IYCF BCC and SfQ-LNS (IYCF-SQ-LNS). Five IYCF-MNP programmes reported positive associations with some IYCF practices-four with minimum dietary diversity, two with minimum meal frequency, four with minimum acceptable diet, and three with the initiation of complementary foods at 6 months. Two reported no association between MNP and IYCF indicators, and one reported a decline in IYCF practices during the intervention, although it also reported significant changes to the IYCF programme during the evaluation period. Two studies from interventions that distributed SQ-LNS (one from a related set of randomised controlled trials and the sole IYCF-SQ-LNS programme) reported a positive association with IYCF practices; one trial reported no change in breast milk intake with the provision of SQ-LNS and one found no association with IYCF practices. SQ-LNS and MNP can address nutrient gaps for young children in low-resource settings; our findings indicate that programmes that combine HFP with IYCF interventions may also contribute to improved IYCF practices in some settings.
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Affiliation(s)
- Lindsey M Locks
- Department of Health Sciences, College of Health and Rehabilitation Sciences: Sargent College, Boston University, Boston, Massachusetts, USA.,Department of Global Health, Boston University, Boston, Massachusetts, USA
| | - Katharine B Newell
- Department of Health Sciences, College of Health and Rehabilitation Sciences: Sargent College, Boston University, Boston, Massachusetts, USA
| | - Annette Imohe
- United Nation Children's Fund (UNICEF) Headquarters, New York City, New York, USA
| | - Grainne M Moloney
- United Nation Children's Fund (UNICEF) Headquarters, New York City, New York, USA
| | - Linda Shaker-Berbari
- United Nation Children's Fund (UNICEF) Headquarters, New York City, New York, USA
| | - Naveen Paudyal
- United Nation Children's Fund (UNICEF) Nepal Country Office, Kathmandu, Nepal
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13
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Benefits of small-quantity lipid-based nutrient supplements for child nutrition and survival warrant moving to scale. NATURE FOOD 2023; 4:130-132. [PMID: 37117857 DOI: 10.1038/s43016-023-00703-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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14
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Giorgetti A, Paganini D, Nyilima S, Kottler R, Frick M, Karanja S, Hennet T, Zimmermann MB. The effects of 2'-fucosyllactose and lacto-N-neotetraose, galacto-oligosaccharides, and maternal human milk oligosaccharide profile on iron absorption in Kenyan infants. Am J Clin Nutr 2023; 117:64-72. [PMID: 36789945 DOI: 10.1016/j.ajcnut.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 09/25/2022] [Accepted: 10/28/2022] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Whether prebiotic human milk oligosaccharides (HMO), such as 2'-fucosyllactose (2'-FL) and lacto-N-neotetraose (LNnT), enhance iron absorption in infants is unknown. Moreover, whether maternal HMO profile affects absorption of iron fortificants or the effects of prebiotic galacto-oligosaccharides (GOS) and/or HMO on iron absorption is uncertain. OBJECTIVES The aim of this study was to test whether consumption of 3.0 g GOS or HMO enhances iron absorption from iron-fortified maize porridge in partially breastfed Kenyan infants and whether maternal HMO profile modulates these effects. METHODS In a randomized, prospective crossover study, 55 infants (aged 8-12 mo) were fed test meals fortified with 1 of the following: 1) 5.0 mg iron as 54Fe-labeled ferrous fumarate (FeFum); 2) 5.0 mg iron as 58FeFum and 3.0 g GOS (FeFum+GOS); and 3) 5.0 mg iron as 57FeFum and 2.0 g 2'-FL and 1.0 g LNnT (FeFum+HMO). Fractional iron absorption (FIA) was assessed by erythrocyte incorporation of iron isotopes. HMO profiles were determined by capillary gel electrophoresis with laser-induced florescence detection. Data were analyzed with mixed-effect models, and iron dialyzability was measured in vitro. RESULTS Of the 55 infants included, 49 were fed as instructed. FIA from the FeFum+GOS group [median (IQR) 22.2% (16.5%-25.9%)] was higher than that from the FeFum group [12.5% (9.5%-20.9%)] (P = 0.005). FIA from the FeFum+HMO group was 13.3% (7.1%-24.4%) and did not differ from the FeFum group (P = 0.923). Maternal HMO profile did not predict FIA or modulate the effects of GOS or HMO on FIA. Iron dialyzability ratios at pH 2 of FeFum+GOS to FeFum and FeFum+HMO to FeFum were 2.1 and 0.9 (P = 0.001 and P = 0.322), respectively. CONCLUSIONS In Kenyan infants consuming FeFum-fortified maize porridge, co-provision of 3.0 g GOS increased FIA by 78%, whereas co-provision of 3.0 g HMO did not affect FIA. Variations in maternal HMO profile, including secretor and Lewis phenotype, did not predict FIA. These data argue against a physiologic role for 2'-FL and LNnT in facilitating iron absorption in infancy. The study was registered at clinicaltrials.gov as NCT04163406 (https://clinicaltrials.gov/ct2/show/NCT04163406).
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Affiliation(s)
- Ambra Giorgetti
- Laboratory of Human Nutrition, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland.
| | - Daniela Paganini
- Laboratory of Human Nutrition, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland; Department of Physiology and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Suzane Nyilima
- Department of Medical Epidemiology, College of Health Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | | | | | - Simon Karanja
- Department of Medical Epidemiology, College of Health Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | - Thierry Hennet
- Department of Physiology and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Michael B Zimmermann
- Laboratory of Human Nutrition, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland; MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
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15
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Rahman M, Uddin MF, Ahmed T, Sarma H. Market-based approach to promoting home fortification of diets with micronutrient powder through volunteer frontline health workers: A qualitative study. PLoS One 2023; 18:e0283306. [PMID: 36952455 PMCID: PMC10035874 DOI: 10.1371/journal.pone.0283306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/07/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND The potential of market-based approach in distributing micronutrient powder (MNP) through volunteer frontline health workers has been recognized. BRAC, the largest non-government organization (NGO) in Bangladesh, uses Shasthya Shebikas as volunteer frontline health workers to sell MNP for promotion of home fortification (HF) of diets for under-5 children. We aimed to understand the opportunities and challenges of BRAC's market-based approach in promoting HF with MNP. METHODS We conducted a descriptive qualitative study in the four selected districts of Bangladesh: Faridpur, Gaibandha, Rangpur, and Rajbari. In-depth interviews, key informant interviews, and focus group discussions were deployed to collect data from purposively-selected Shasthya Shebikas and their immediate supervisors at the field level-Shasthya Kormis, Field Organizers, Managers, and mothers or caregivers of under-5 children. We performed thematic analysis to analyze data. RESULTS We have found that the Shasthya Shebikas play a critical role in promoting access of MNP by the mother/caregivers of children aged 6-59 months at the community level. They counsel the caregivers to seek primary advice about the product and also informally identify undernourished children so that they can receive special attention regarding the use of MNP. However, low profit margins, over-due payments for the sold sachets, poor collaboration with and free distribution of MNP by other NGOs, and inadequate training of Shasthya Shebikas on marketing of MNP have posed major challenges for them to perform as effective sales agents of the product. CONCLUSION The market-based approach in promoting HF with MNP through frontline volunteer health workers shows much potential, with ample opportunities and few possible challenges. Considering the dynamics, the intervention should fine-tune the factors crucial to maximizing the potentials of Shasthya Shebikas for marketing MNP and promoting HF in order to improve nutrition status of the infants and young children.
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Affiliation(s)
- Mahfuzur Rahman
- Nutrition and Clinical Services Division, icddr,b, Mohakhali, Dhaka, Bangladesh
| | - Md Fakhar Uddin
- Nutrition and Clinical Services Division, icddr,b, Mohakhali, Dhaka, Bangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, icddr,b, Mohakhali, Dhaka, Bangladesh
| | - Haribondhu Sarma
- National Centre for Epidemiology and Population Health, The Australian National University, Canberra, ACT, Australia
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Tong H, Piwoz E, Ruel MT, Brown KH, Black RE, Walker N. Maternal and child nutrition in the Lives Saved Tool: Results of a recent update. J Glob Health 2022; 12:08005. [PMID: 36583418 PMCID: PMC9801341 DOI: 10.7189/jogh.12.08005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background The Lives Saved Tool (LiST) is a mathematical modelling tool for estimating the survival, health, and nutritional impacts of scaling intervention coverage in low- and middle-income countries (LMICs). Various nutrition interventions are included in LiST and are regularly (and independently) reviewed and updated as new data emerge. This manuscript describes our latest in-depth review of nutrition evidence, focusing on intervention efficacy, appropriate population-affected fractions, and new interventions for potential inclusion in the LiST model. Methods An external advisory group (EAG) was assembled to review evidence from systematic reviews on intervention-outcome (I-O) pairs for women and children under five years of age. GRADE quality was assigned to each pair based on a LiST-specific checklist to facilitate consistent decisions during the consideration. For existing interventions with new information, the EAG was asked to recommend whether to update the default efficacy values and population-affected fractions. For the new interventions, the EAG decided whether there was sufficient evidence of benefit, and in affirmative cases, information on the efficacy and affected fraction values that could be used. Decisions were based on expert group consensus. Results Overall, the group reviewed 53 nutrition-related I-O pairs, including 25 existing and 28 new ones. Efficacy and population-affected fractions were updated for seven I-O pairs; three pairs were updated for efficacy estimates only, three were updated for population-affected fractions only; and nine new I-O pairs were added to the model, bringing the total of nutrition-related I-O pairs to 34. Included in the new I-O pairs were two new nutrition interventions added to LIST: zinc fortification and neonatal vitamin A supplementation. Conclusions For modelling tools like LiST to be useful, it is crucial to update interventions, efficacy and population-affected fractions as new evidence becomes available. The present updates will enable LiST users to better estimate the potential health, nutrition, and survival benefits of investing in nutrition.
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Affiliation(s)
- Hannah Tong
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ellen Piwoz
- Independent Consultant, Annapolis, Maryland, USA
| | - Marie T Ruel
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, District of Columbia, USA
| | - Kenneth H Brown
- Department of Nutrition and Institute for Global Nutrition, University of California, Davis, California, USA
| | - Robert E Black
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Neff Walker
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
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17
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Wang CC, Abdul Jalal MI, Song ZL, Teo YP, Tan CA, Heng KV, Low MSY, Anuar Zaini A, Lum LCS. A Randomized Pilot Trial of Micronutrient Supplementation for Under-5 Children in an Urban Low-Cost Flat Community in Malaysia: A Framework for Community-Based Research Integration. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192113878. [PMID: 36360757 PMCID: PMC9655965 DOI: 10.3390/ijerph192113878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/13/2022] [Accepted: 10/21/2022] [Indexed: 06/01/2023]
Abstract
Early childhood nutritional deficiency has detrimental consequences on physical and cognitive development. We conducted a single-center, single-blind, two-arm pilot randomized no-treatment controlled trial (the Child of Urban Poverty Iron Project (CUPIP); NCT03819530) in a people’s housing project locale in Selangor, Malaysia, between September 2019 and February 2020, to assess the trial’s general feasibility and preliminary benefits of daily micronutrient supplementation for iron storage and anthropometric outcomes in under-5 children. Those with history of premature births, congenital abnormalities, or baseline hemoglobin <70 g/L were excluded. Participants received baseline deworming and were simply randomized in a 1:1 ratio to either micronutrient (4-month daily micronutrient packets) or control (no micronutrient supplementation) groups. Information on anthropometric, erythrocytic, and iron storage endpoints were collected. Overall, 45 (25 micronutrient and 20 controls) participants were enrolled and completed 4-month endpoint assessments. Micronutrient recipients demonstrated higher median mean corpuscular volume, serum ferritin level with no significant differences in all anthropometric endpoints. In conclusion, this pilot trial was implementable, demonstrating that micronutrient supplementation significantly improved hematological, but not anthropometric, endpoints, of under-5-year-old children living in an underprivileged environment. A definitive well-designed trial with larger sample sizes and greater attrition control should be contemplated in the future.
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Affiliation(s)
- Crystal C. Wang
- Weill Cornell Medicine, 1300 York Avenue, New York, NY 10021, USA
| | - Muhammad Irfan Abdul Jalal
- UKM Medical Molecular Biology Institute (UMBI), Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia
| | - Zhi Liang Song
- Department of Paediatrics, Universiti Malaya Medical Center, Kuala Lumpur 59100, Malaysia
| | - Yik Pheng Teo
- Department of Paediatrics, Universiti Malaya Medical Center, Kuala Lumpur 59100, Malaysia
| | - Chin Aun Tan
- Department of Occupational Safety & Health Unit, Hospital Tunku Azizah, Kuala Lumpur 50300, Malaysia
| | - Kai Voon Heng
- Department of Paediatrics, Hospital Tunku Azizah, Kuala Lumpur 50300, Malaysia
| | - Michelle Siu Yee Low
- Department of Paediatrics, Universiti Malaya Medical Center, Kuala Lumpur 59100, Malaysia
| | - Azriyanti Anuar Zaini
- Department of Paediatrics, Universiti Malaya Medical Center, Kuala Lumpur 59100, Malaysia
| | - Lucy Chai See Lum
- Department of Paediatrics, Universiti Malaya Medical Center, Kuala Lumpur 59100, Malaysia
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18
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Akpan E, Hossain SJ, Devine A, Braat S, Hasan MI, Tipu SMMU, Bhuiyan MSA, Hamadani JD, Biggs BA, Pasricha SR, Carvalho N. Cost-effectiveness of universal iron supplementation and iron-containing micronutrient powders for anemia among young children in rural Bangladesh: analysis of a randomized, placebo-controlled trial. Am J Clin Nutr 2022; 116:1303-1313. [PMID: 36192508 PMCID: PMC9630870 DOI: 10.1093/ajcn/nqac225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/05/2022] [Accepted: 08/17/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Universal provision of iron supplements or iron-containing multiple micronutrient powders (MNPs) is widely used to prevent anemia in young children in low- and middle-income countries. The BRISC (Benefits and Risks of Iron Interventions in Children) trial compared iron supplements and MNPs with placebo in children <2 y old in rural Bangladesh. OBJECTIVES We aimed to assess the cost-effectiveness of iron supplements or iron-containing MNPs among young children in rural Bangladesh. METHODS We did a cost-effectiveness analysis of MNPs and iron supplements using the BRISC trial outcomes and resource use data, and programmatic data from the literature. Health care costs were assessed from a health system perspective. We calculated incremental cost-effectiveness ratios (ICERs) in terms of US$ per disability-adjusted life-year (DALY) averted. To explore uncertainty, we constructed cost-effectiveness acceptability curves using bootstrapped data over a range of cost-effectiveness thresholds. One- and 2-way sensitivity analyses tested the impact of varying key parameter values on our results. RESULTS Provision of MNPs was estimated to avert 0.0031 (95% CI: 0.0022, 0.0041) DALYs/child, whereas iron supplements averted 0.0039 (95% CI: 0.0030, 0.0048) DALYs/child, over 1 y compared with no intervention. Incremental mean costs were $0.75 (95% CI: 0.73, 0.77) for MNPs compared with no intervention and $0.64 ($0.62, $0.67) for iron supplements compared with no intervention. Iron supplementation dominated MNPs because it was cheaper and averted more DALYs. Iron supplementation had an ICER of $1645 ($1333, $2153) per DALY averted compared with no intervention, and had a 0% probability of being the optimal strategy at cost-effectiveness thresholds of $200 (reflecting health opportunity costs in Bangladesh) and $985 [half of gross domestic product (GDP) per capita] per DALY averted. Scenario and sensitivity analyses supported the base case findings. CONCLUSIONS These findings do not support universal iron supplementation or micronutrient powders as a cost-effective intervention for young children in rural Bangladesh.This trial was registered at anzctr.org.au as ACTRN1261700066038 and trialsearch.who.int as U1111-1196-1125.
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Affiliation(s)
- Edifofon Akpan
- Centre for Health Policy, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Sheikh J Hossain
- International Centre for Diarrhoeal Disease Research, Maternal and Child Health Division, Bangladesh (icddr,b), Dhaka, Bangladesh,Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Angela Devine
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia,Division of Global and Tropical Health, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Sabine Braat
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia,Population Health and Immunity Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia,Department of Medicine at the Peter Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Mohammed I Hasan
- International Centre for Diarrhoeal Disease Research, Maternal and Child Health Division, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - S M Mulk Uddin Tipu
- International Centre for Diarrhoeal Disease Research, Maternal and Child Health Division, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Mohammad Saiful Alam Bhuiyan
- International Centre for Diarrhoeal Disease Research, Maternal and Child Health Division, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Jena D Hamadani
- International Centre for Diarrhoeal Disease Research, Maternal and Child Health Division, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Beverley-Ann Biggs
- Department of Medicine at the Peter Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Sant-Rayn Pasricha
- Population Health and Immunity Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia,Diagnostic Hematology, The Royal Melbourne Hospital, Parkville, Victoria, Australia,Clinical Hematology, The Peter MacCallum Cancer Centre and The Royal Melbourne Hospital, Parkville, Victoria, Australia,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
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19
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Cai J, Peng J, Zang X, Feng J, Li R, Ren P, Zheng B, Wang J, Wang J, Yan M, Liu J, Deng R, Wang D. Mammary Leukocyte-Assisted Nanoparticle Transport Enhances Targeted Milk Trace Mineral Delivery. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200841. [PMID: 35773238 PMCID: PMC9475556 DOI: 10.1002/advs.202200841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Nanoparticles are applied as versatile platforms for drug/gene delivery in many applications owing to their long-retention and specific targeting properties in living bodies. However, the delivery mechanism and the beneficial effect of nanoparticle-retention in many organisms remain largely uncertain. Here, the transport and metabolism of mineral nanoparticles in mammary gland during lactation are explored. It is shown that maternal intravenous administration of iron oxide nanoparticles (IONPs; diameter: ≈11.0 nm, surface charge: -29.1 mV, surface area: 1.05 m2 g-1 ) provides elevated iron delivery to mammary gland and increased iron secretion into breast milk, which is inaccessible by classical iron-ion transport approaches such as the transferrin receptor-mediated endocytic pathway. Mammary macrophages and neutrophils are found to play dominant roles in uptake and delivery of IONPs through an unconventional leukocyte-assisted iron secretion pathway. This pathway bypasses the tight iron concentration regulation of liver hepcidin-ferroportin axis and mammary epithelial cells to increase milk iron-ion content derived from IONPs. This work provides keen insight into the metabolic pathway of nanoparticles in mammary gland while offering a new scheme of nutrient delivery for neonate metabolism regulation by using nanosized nutrients.
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Affiliation(s)
- Jie Cai
- Institute of Dairy ScienceCollege of Animal SciencesMOE Key Laboratory of Molecular Animal NutritionZhejiang UniversityHangzhou310029P. R. China
| | - Jie Peng
- School of Materials Science and EngineeringState Key Laboratory of Silicon MaterialsInstitute for Composites Science InnovationZhejiang UniversityHangzhou310027P. R. China
| | - Xinwei Zang
- Institute of Dairy ScienceCollege of Animal SciencesMOE Key Laboratory of Molecular Animal NutritionZhejiang UniversityHangzhou310029P. R. China
| | - Juan Feng
- Institute of Dairy ScienceCollege of Animal SciencesMOE Key Laboratory of Molecular Animal NutritionZhejiang UniversityHangzhou310029P. R. China
| | - Ruocheng Li
- Institute of Dairy ScienceCollege of Animal SciencesMOE Key Laboratory of Molecular Animal NutritionZhejiang UniversityHangzhou310029P. R. China
| | - Peng Ren
- Institute of Dairy ScienceCollege of Animal SciencesMOE Key Laboratory of Molecular Animal NutritionZhejiang UniversityHangzhou310029P. R. China
| | - Bingzhu Zheng
- School of Materials Science and EngineeringState Key Laboratory of Silicon MaterialsInstitute for Composites Science InnovationZhejiang UniversityHangzhou310027P. R. China
| | - Jiaying Wang
- Institute of Environmental HealthMOE Key Laboratory of Environmental Remediation and Ecosystem HealthCollege of Environmental & Resource SciencesZhejiang UniversityHangzhou310058P. R. China
| | - Juan Wang
- Institute of Environmental HealthMOE Key Laboratory of Environmental Remediation and Ecosystem HealthCollege of Environmental & Resource SciencesZhejiang UniversityHangzhou310058P. R. China
| | - Mi Yan
- School of Materials Science and EngineeringState Key Laboratory of Silicon MaterialsInstitute for Composites Science InnovationZhejiang UniversityHangzhou310027P. R. China
| | - Jianxin Liu
- Institute of Dairy ScienceCollege of Animal SciencesMOE Key Laboratory of Molecular Animal NutritionZhejiang UniversityHangzhou310029P. R. China
| | - Renren Deng
- School of Materials Science and EngineeringState Key Laboratory of Silicon MaterialsInstitute for Composites Science InnovationZhejiang UniversityHangzhou310027P. R. China
- Department of Medical OncologyThe First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou310003P. R. China
| | - Diming Wang
- Institute of Dairy ScienceCollege of Animal SciencesMOE Key Laboratory of Molecular Animal NutritionZhejiang UniversityHangzhou310029P. R. China
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20
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Reconnoitring the Usage of Agroindustrial Waste in Carotenoid Production for Food Fortification: a Sustainable Approach to Tackle Vitamin A Deficiency. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02888-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Randell M, Li M, Rachmi CN, Jusril H, Fox O, Wibowo L, Rah JH, Pronyk P, Harmiko M, Phebe N, Ahmad A, Ariawan I, Negin J, Raynes-Greenow C. Prevalence of, and factors associated with anaemia in children aged 1-3 years in Aceh, Indonesia: A cross-sectional study. Nutr Health 2022:2601060221116195. [PMID: 35876347 DOI: 10.1177/02601060221116195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Background: Child anaemia continues to represent a major public health challenge in lower-and-middle income countries. It has serious long-term consequences for child growth and development. In Indonesia, there was a 10% increase in the national prevalence of child anaemia between 2013 and 2018. Aim: This study aims to assess the prevalence of, and factors associated with anaemia among children aged one to three years in eight districts in Aceh Province, Indonesia. Methods: A cross-sectional study was conducted on a sample of 1148 mother-child dyads aged one to three years between November and December 2018. The sampling process involved a three-stage cluster sampling design using the probability proportionate to size methodology. Anaemia status was determined using haemoglobin level (Hb < 11.0 g/dL). Data were analysed using multivariable logistic regression to estimate adjusted odds ratios (aOR) and their 95% confidence intervals (95% CI) for associated factors. Results: The overall prevalence of anaemia was 76.1% (869/1142). 44.7% (510/1142) and 28.6% (327/1142) had moderate and mild anaemia, respectively. Child aged 12-24 months (aOR: 2.00, 95% CI: 1.26-3.17), not receiving routine immunisation (aOR: 2.62, 95% CI: 1.34-5.10), and maternal anaemia (aOR: 2.15, 95% CI: 1.59-2.90) were significantly associated with anaemia. Conclusion: The prevalence of anaemia among the children in this study was high, and was associated with child age, immunisation status, and maternal anaemia. These findings provide further insight into anaemia as a public health issue at a sub-national level in Indonesia and for development of targeted programmes to address associated risk factors of child anaemia.
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Affiliation(s)
- Madeleine Randell
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
| | - Mu Li
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
| | | | | | - Olivia Fox
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
| | | | | | - Paul Pronyk
- SingHealth Duke-NUS Global Health Department, Singapore
| | | | | | - Aripin Ahmad
- Nutrition Department of 483792Aceh Health Polytechnic, Ministry of Health, Banda Aceh, Aceh, Indonesia
| | - Iwan Ariawan
- 608659Reconstra Utama Integra, Jakarta, Indonesia
| | - Joel Negin
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
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22
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Relationship of Selected Soil Properties with the Micronutrients in Salt-Affected Soils. LAND 2022. [DOI: 10.3390/land11060845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The present study aimed to assess the relationship of soil properties in salt-affected soils. The soil samples were collected from 14 districts of Pakistan. Soil salinity and sodicity are the common features of the arid and semiarid regions. The effects of the salt’s interactions with soil micronutrients have not been well studied. Therefore, saline and non-saline soil samples were collected from different locations. The microelements (Fe, Cu, Mn, and Zn) were fractionated into water-soluble, exchangeable, carbonate, Fe + Mn oxide, organic, and residual fractions. Univariate and multivariate analysis (PCA) was carried out to determine the linear relationship between soil properties and micronutrients fractions. Results showed that the magnitude of micronutrients appeared to be affected by the salinity in soils. In saline soil, the Fe fractions differed in the order of residual > organic bound > Fe + Mn bound > carbonate bound > exchangeable > water soluble. Iron fractions varied in the non-saline soils as residual > Fe + Mn bound > organic bound > exchangeable > carbonate bound > water soluble. Copper concentration was higher in the residual and carbonate forms, and the amount was lower in the exchangeable and water-soluble forms under both saline and non-saline conditions. The water-soluble Mn fraction was lower, and the residual Mn fraction was proportionately higher than other forms of Mn in soils. Zinc was found mostly in the residual fraction in both saline and non-saline soils. The mobility factor of micronutrients in non-saline soil was greater than in saline soil. PCA revealed that organic matter (OM) and pH directly affected the fractionation of Cu, Mn, Zn, and Fe in soil. Thus, it could be inferred that salts can bring changes to the composition of micronutrients depending on the nature of the soil and the magnitude of salts.
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23
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Consumption of Micronutrient Powder, Syrup or Fortified Food Significantly Improves Zinc and Iron Status in Young Mexican Children: A Cluster Randomized Trial. Nutrients 2022; 14:nu14112231. [PMID: 35684031 PMCID: PMC9183015 DOI: 10.3390/nu14112231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/28/2022] [Accepted: 05/06/2022] [Indexed: 11/25/2022] Open
Abstract
The objective of this study was to compare the effect of three micronutrient products on biomarkers of iron and zinc status of Mexican children 6−12 months of age. As part of research to improve the impact of a national program, 54 communities were randomly assigned to receive: (1) fortified food (FF), provided by the program at the time, or (2) micronutrient powders (MNP) or (3) syrup. Each product contained 10 mg each of zinc and iron, plus other micronutrients. Children consumed the product 6 days/week for four months. Primary outcomes were changes in serum zinc, ferritin, soluble transferrin receptor, hemoglobin concentrations, and their deficiencies. Zinc concentration increased significantly from baseline to follow-up in all groups, with the largest change in the syrup group (geometric mean difference: +4.4 µmol/L; 95%CI: 3.2, 5.5), followed by MNP (+2.9 µmol/L; 95%CI: 2.1, 3.6) and FF (+0.9 µmol/L; 95%CI: 0.3, 1.6). There was a significant increase in hemoglobin concentration (+5.5 g/L; 2.5, 8.4) and a significant reduction in anemia prevalence (44.2% to 26.8%, p < 0.01) only in the MNP group. Compliance differed significantly among groups (MNP vs. FF, p = 0.04; MNP vs. syrup, p = 0.04), but may not fully explain the greater improvement in zinc and iron status in the syrup and MNP groups. The food matrix may influence nutrient utilization from supplements.
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24
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Chouraqui JP. Dietary Approaches to Iron Deficiency Prevention in Childhood—A Critical Public Health Issue. Nutrients 2022; 14:nu14081604. [PMID: 35458166 PMCID: PMC9026685 DOI: 10.3390/nu14081604] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/03/2022] [Accepted: 04/08/2022] [Indexed: 12/15/2022] Open
Abstract
Iron is an essential nutrient, and individual iron status is determined by the regulation of iron absorption, which is driven by iron requirements. Iron deficiency (ID) disproportionately affects infants, children, and adolescents, particularly those who live in areas with unfavorable socioeconomic conditions. The main reason for this is that diet provides insufficient bioavailable iron to meet their needs. The consequences of ID include poor immune function and response to vaccination, and moderate ID anemia is associated with depressed neurodevelopment and impaired cognitive and academic performances. The persistently high prevalence of ID worldwide leads to the need for effective measures of ID prevention. The main strategies include the dietary diversification of foods with more bioavailable iron and/or the use of iron-fortified staple foods such as formula or cereals. However, this strategy may be limited due to its cost, especially in low-income countries where biofortification is a promising approach. Another option is iron supplementation. In terms of health policy, the choice between mass and targeted ID prevention depends on local conditions. In any case, this remains a critical public health issue in many countries that must be taken into consideration, especially in children under 5 years of age.
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Affiliation(s)
- Jean-Pierre Chouraqui
- Pediatric Nutrition and Gastroenterology Unit, Woman, Mother and Child Department, University Hospital of Lausanne, 1011 Lausanne, Switzerland
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25
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Liu R, Ye R, Leng F, Sun C, Wang Q, Zhou H. High adherence and its influencing factors on multiple micronutrient powders (MNPs). MATERNAL & CHILD NUTRITION 2022; 18:e13278. [PMID: 34658128 PMCID: PMC8710102 DOI: 10.1111/mcn.13278] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 09/16/2021] [Accepted: 09/19/2021] [Indexed: 01/10/2023]
Abstract
Adherence to home fortification of foods with multiple micronutrient powders (MNPs) is an essential indicator of effective implementation of MNP programmes. A meta‐analysis was conducted to evaluate the high adherence rate (HAR) to MNPs and further investigate the factors that influence HAR. We searched PubMed, Web of Science, Embase, CAB Abstracts, MEDLINE (OVID), Cochrane Library, China National Knowledge Infrastructure, Wanfang and VP, from the date of database inception to 9 November 2020. We included peer‐reviewed observational studies that investigated adherence to MNPs. Data on the HAR to MNPs and influencing factors on HAR were extracted and then pooled together. A total of 10 studies were included. The pooled HAR to MNPs was 63.28% (51.12%–74.64%). Among HARs, rates were higher in middle‐income countries (65.21%) than low‐income countries (55.23%). Parental age over 30 years (maternal age OR = 1.25, 95% CI: 1.08–1.44; paternal age OR = 1.17, 95% CI: 1.04–1.32), children aged 18–36 months (OR = 1.45, 95% CI: 1.12–1.88), maternal educational attainment of college or above (OR = 1.38, 95% CI:1.10–1.73), caregiver with the perception that other mothers use MNPs (OR = 1.52, 95% CI:1.19–1.95), caregiver being aware of the importance of iron (OR = 1.42, 95% CI: 1.18–1.71), caregiver having correct knowledge of MNPs (OR = 1.36, 95% CI:1.19–1.57) and caregiver reporting children have no side effects from MNPs (OR = 2.77, 95% CI: 2.46–3.11) were contributing factors to high adherence to MNPs. The overall HAR to MNPs was relatively low; hence, effective and trusted communication channels need to be established, along with more thorough dissemination of the knowledge of MNPs to caregivers, to improve MNPs adherence rates, especially in low‐income countries.
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Affiliation(s)
- Rong Liu
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, No.16 South Renmin Road 3 Section, Chengdu, 610041, China.,Institute for Disaster Management and Reconstruction, Sichuan University, No. 122 Huanghe Middle Road Section 1, Chengdu, 610041, China
| | - Ruixue Ye
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, No.16 South Renmin Road 3 Section, Chengdu, 610041, China
| | - Fangqun Leng
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, No.16 South Renmin Road 3 Section, Chengdu, 610041, China
| | - Chang Sun
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, No.16 South Renmin Road 3 Section, Chengdu, 610041, China
| | - Qingzhi Wang
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, No.16 South Renmin Road 3 Section, Chengdu, 610041, China
| | - Huan Zhou
- Department of Health Behavior and Social Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, No.16 South Renmin Road 3 Section, Chengdu, 610041, China
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26
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The Effects of Deworming and Multiple Micronutrients on Anaemia in Preschool Children in Bangladesh: Analysis of Five Cross-Sectional Surveys. Nutrients 2021; 14:nu14010150. [PMID: 35011023 PMCID: PMC8746749 DOI: 10.3390/nu14010150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 11/20/2022] Open
Abstract
Anaemia is a major public health problem among children < 5 years of age in Bangladesh due to recurrent intestinal parasite infections. The aim of this study was to understand the association between combining deworming and MNP home fortification (MNP + Deworming) and the prevalence of anaemia among children < 5 years of age in Bangladesh. We used pooled data from five cross-sectional surveys and performed multivariable logistic regression and calculated crude and adjusted odds ratios (AORs) to quantify the association of anaemia with the exposure variables. A total of 9948 households were considered for this paper. In the unadjusted logistic regression, no significant association was detected between the effective MNP coverage and anaemia prevalence, but the associations were significant (p < 0.001) between the deworming and anaemia prevalence and between the MNP + Deworming condition and anaemia prevalence. In the adjusted model, children who were exposed to both deworming and effective MNP coverage were 30% (AOR 0.70; 95% CI 0.52, 0.94; p = 0.018) less likely to be anaemic compared with children who were unexposed to combined MNP + Deworming. The combined effects of deworming and MNP supplementation on the reduction in anaemia prevalence highlighted the importance of using integrated and multidisciplinary intervention strategies.
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27
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Prado EL, Arnold CD, Wessells KR, Stewart CP, Abbeddou S, Adu-Afarwuah S, Arnold BF, Ashorn U, Ashorn P, Becquey E, Brown KH, Chandna J, Christian P, Dentz HN, Dulience SJL, Fernald LC, Galasso E, Hallamaa L, Hess SY, Huybregts L, Iannotti LL, Jimenez EY, Kohl P, Lartey A, Le Port A, Luby SP, Maleta K, Matchado A, Matias SL, Mridha MK, Ntozini R, Null C, Ocansey ME, Parvez SM, Phuka J, Pickering AJ, Prendergast AJ, Shamim AA, Siddiqui Z, Tofail F, Weber AM, Wu L, Dewey KG. Small-quantity lipid-based nutrient supplements for children age 6-24 months: a systematic review and individual participant data meta-analysis of effects on developmental outcomes and effect modifiers. Am J Clin Nutr 2021; 114:43S-67S. [PMID: 34590116 PMCID: PMC8560311 DOI: 10.1093/ajcn/nqab277] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 08/04/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Small-quantity (SQ) lipid-based nutrient supplements (LNSs) provide many nutrients needed for brain development. OBJECTIVES We aimed to generate pooled estimates of the effect of SQ-LNSs on developmental outcomes (language, social-emotional, motor, and executive function), and to identify study-level and individual-level modifiers of these effects. METHODS We conducted a 2-stage meta-analysis of individual participant data from 14 intervention against control group comparisons in 13 randomized trials of SQ-LNSs provided to children age 6-24 mo (total n = 30,024). RESULTS In 11-13 intervention against control group comparisons (n = 23,588-24,561), SQ-LNSs increased mean language (mean difference: 0.07 SD; 95% CI: 0.04, 0.10 SD), social-emotional (0.08; 0.05, 0.11 SD), and motor scores (0.08; 95% CI: 0.05, 0.11 SD) and reduced the prevalence of children in the lowest decile of these scores by 16% (prevalence ratio: 0.84; 95% CI: 0.76, 0.92), 19% (0.81; 95% CI: 0.74, 0.89), and 16% (0.84; 95% CI: 0.76, 0.92), respectively. SQ-LNSs also increased the prevalence of children walking without support at 12 mo by 9% (1.09; 95% CI: 1.05, 1.14). Effects of SQ-LNSs on language, social-emotional, and motor outcomes were larger among study populations with a higher stunting burden (≥35%) (mean difference: 0.11-0.13 SD; 8-9 comparisons). At the individual level, greater effects of SQ-LNSs were found on language among children who were acutely malnourished (mean difference: 0.31) at baseline; on language (0.12), motor (0.11), and executive function (0.06) among children in households with lower socioeconomic status; and on motor development among later-born children (0.11), children of older mothers (0.10), and children of mothers with lower education (0.11). CONCLUSIONS Child SQ-LNSs can be expected to result in modest developmental gains, which would be analogous to 1-1.5 IQ points on an IQ test, particularly in populations with a high child stunting burden. Certain groups of children who experience higher-risk environments have greater potential to benefit from SQ-LNSs in developmental outcomes.This trial was registered at www.crd.york.ac.uk/PROSPERO as CRD42020159971.
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Affiliation(s)
- Elizabeth L Prado
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
| | - Charles D Arnold
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
| | - K Ryan Wessells
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
| | - Christine P Stewart
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
| | - Souheila Abbeddou
- Public Health Nutrition, Department of Public Health and Primary Care, University of Ghent, Ghent, Belgium
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Benjamin F Arnold
- Francis I Proctor Foundation, University of California, San Francisco, San Francisco, CA, USA
| | - Ulla Ashorn
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Per Ashorn
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Elodie Becquey
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - Kenneth H Brown
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
- Helen Keller International, New York, NY, USA
| | - Jaya Chandna
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Parul Christian
- Program in Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Holly N Dentz
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
| | | | - Lia C H Fernald
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | | | - Lotta Hallamaa
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Sonja Y Hess
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
| | - Lieven Huybregts
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - Lora L Iannotti
- Brown School, Washington University in St. Louis, St Louis, MO, USA
| | - Elizabeth Y Jimenez
- Departments of Pediatrics and Internal Medicine and College of Population Health, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Patricia Kohl
- Brown School, Washington University in St. Louis, St Louis, MO, USA
| | - Anna Lartey
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | | | - Stephen P Luby
- Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA, USA
| | - Kenneth Maleta
- Department of Public Health, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Andrew Matchado
- Malawi Epidemiology and Intervention Research Unit, Karonga, Malawi
| | - Susana L Matias
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, CA, USA
| | - Malay K Mridha
- Center for Non-communicable Diseases and Nutrition, BRAC James P Grant School of Public Health, Dhaka, Bangladesh
| | - Robert Ntozini
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | | | | | - Sarker M Parvez
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - John Phuka
- Department of Public Health, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | | | | | - Abu A Shamim
- Center for Non-communicable Diseases and Nutrition, BRAC James P Grant School of Public Health, Dhaka, Bangladesh
| | - Zakia Siddiqui
- Healthy Systems and Population Studies Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Fahmida Tofail
- Nutrition and Clinical Sciences Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Ann M Weber
- Division of Epidemiology, School of Community Health Sciences, University of Nevada, Reno, Reno, NV, USA
| | - Lee S F Wu
- Program in Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kathryn G Dewey
- Institute for Global Nutrition & Department of Nutrition, University of California Davis, Davis, CA, USA
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28
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Dewey KG, Stewart CP, Wessells KR, Prado EL, Arnold CD. Small-quantity lipid-based nutrient supplements for the prevention of child malnutrition and promotion of healthy development: overview of individual participant data meta-analysis and programmatic implications. Am J Clin Nutr 2021; 114:3S-14S. [PMID: 34590696 PMCID: PMC8560310 DOI: 10.1093/ajcn/nqab279] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 08/04/2021] [Indexed: 12/14/2022] Open
Abstract
Small-quantity lipid-based nutrient supplements (SQ-LNSs) were designed to provide multiple micronutrients within a food base that also provides energy, protein, and essential fatty acids, targeted towards preventing malnutrition in vulnerable populations. Previous meta-analyses demonstrated beneficial effects of SQ-LNSs on child growth, anemia, and mortality. To further examine the efficacy and effectiveness of SQ-LNSs, and explore study-level and individual-level effect modifiers, we conducted an individual participant data meta-analysis of 14 randomized controlled trials of SQ-LNSs provided to children 6-24 mo of age (n > 37,000). We examined growth, development, anemia, and micronutrient status outcomes. Children who received SQ-LNSs had a 12-14% lower prevalence of stunting, wasting, and underweight; were 16-19% less likely to score in the lowest decile for language, social-emotional, and motor development; had a 16% lower prevalence of anemia; and had a 64% lower prevalence of iron-deficiency anemia compared with control group children. For most outcomes, beneficial effects of SQ-LNSs were evident regardless of study-level characteristics, including region, stunting burden, malaria prevalence, sanitation, water quality, duration of supplementation, frequency of contact, or average reported compliance with SQ-LNSs. For development, the benefits of SQ-LNSs were greater in populations with higher stunting burden, in households with lower socioeconomic status, and among acutely malnourished children. For hemoglobin and iron status, benefits were greater in populations with higher anemia prevalence and among acutely malnourished children, respectively. Thus, targeting based on potential to benefit may be worthwhile for those outcomes. Overall, co-packaging SQ-LNSs with interventions that reduce constraints on response, such as the prevention and control of prenatal and child infections, improving health care access, and promotion of early child development, may lead to greater impact. Policymakers and program planners should consider including SQ-LNSs in strategies to reduce child mortality, stunting, wasting, anemia, iron deficiency, and delayed development. This study was registered at www.crd.york.ac.uk/PROSPERO as CRD42019146592, CRD42020159971, and CRD42020156663.
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Affiliation(s)
| | - Christine P Stewart
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - K Ryan Wessells
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Elizabeth L Prado
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Charles D Arnold
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
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29
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Wessells KR, Arnold CD, Stewart CP, Prado EL, Abbeddou S, Adu-Afarwuah S, Arnold BF, Ashorn P, Ashorn U, Becquey E, Brown KH, Byrd KA, Campbell RK, Christian P, Fernald L, Fan YM, Galasso E, Hess SY, Huybregts L, Jorgensen JM, Kiprotich M, Kortekangas E, Lartey A, Le Port A, Leroy JL, Lin A, Maleta K, Matias SL, Mbuya M, Mridha MK, Mutasa K, Naser AM, Paul RR, Okronipa H, Ouédraogo JB, Pickering AJ, Rahman M, Schulze K, Smith LE, Weber AM, Zongrone A, Dewey KG. Characteristics that modify the effect of small-quantity lipid-based nutrient supplementation on child anemia and micronutrient status: an individual participant data meta-analysis of randomized controlled trials. Am J Clin Nutr 2021; 114:68S-94S. [PMID: 34590114 PMCID: PMC8560313 DOI: 10.1093/ajcn/nqab276] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 08/04/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Small-quantity lipid-based nutrient supplements (SQ-LNSs) have been shown to reduce the prevalence of child anemia and iron deficiency, but effects on other micronutrients are less well known. Identifying subgroups who benefit most from SQ-LNSs could support improved program design. OBJECTIVES We aimed to identify study-level and individual-level modifiers of the effect of SQ-LNSs on child hemoglobin (Hb), anemia, and inflammation-adjusted micronutrient status outcomes. METHODS We conducted a 2-stage meta-analysis of individual participant data from 13 randomized controlled trials of SQ-LNSs provided to children 6-24 mo of age (n = 15,946). We generated study-specific and subgroup estimates of SQ-LNSs compared with control, and pooled the estimates using fixed-effects models. We used random-effects meta-regression to examine potential study-level effect modifiers. RESULTS SQ-LNS provision decreased the prevalence of anemia (Hb < 110 g/L) by 16% (relative reduction), iron deficiency (plasma ferritin < 12 µg/L) by 56%, and iron deficiency anemia (IDA; Hb < 110 g/L and plasma ferritin <12 µg/L) by 64%. We observed positive effects of SQ-LNSs on hematological and iron status outcomes within all subgroups of the study- and individual-level effect modifiers, but effects were larger in certain subgroups. For example, effects of SQ-LNSs on anemia and iron status were greater in trials that provided SQ-LNSs for >12 mo and provided 9 (as opposed to <9) mg Fe/d, and among later-born (than among first-born) children. There was no effect of SQ-LNSs on plasma zinc or retinol, but there was a 7% increase in plasma retinol-binding protein (RBP) and a 56% reduction in vitamin A deficiency (RBP < 0.70 µmol/L), with little evidence of effect modification by individual-level characteristics. CONCLUSIONS SQ-LNSs can substantially reduce the prevalence of anemia, iron deficiency, and IDA among children across a range of individual, population, and study design characteristics. Policy-makers and program planners should consider SQ-LNSs within intervention packages to prevent anemia and iron deficiency.This trial was registered at www.crd.york.ac.uk/PROSPERO as CRD42020156663.
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Affiliation(s)
| | - Charles D Arnold
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Christine P Stewart
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Elizabeth L Prado
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Souheila Abbeddou
- Public Health Nutrition, Department of Public Health and Primary Care, University of Ghent, Ghent, Belgium
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Benjamin F Arnold
- Francis I Proctor Foundation, University of California, San Francisco, San Francisco, CA, USA
| | - Per Ashorn
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland,Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Ulla Ashorn
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Elodie Becquey
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - Kenneth H Brown
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA,Helen Keller International, New York, NY, USA
| | | | - Rebecca K Campbell
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago School of Public Health, Chicago, IL, USA
| | - Parul Christian
- Program in Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lia C H Fernald
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Yue-Mei Fan
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | | | - Sonja Y Hess
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Lieven Huybregts
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - Josh M Jorgensen
- Nutrition Program, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | | | - Emma Kortekangas
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Anna Lartey
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | | | - Jef L Leroy
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - Audrie Lin
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Kenneth Maleta
- Department of Public Health, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Susana L Matias
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, CA, USA
| | - Mduduzi N N Mbuya
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe,Global Alliance for Improved Nutrition, Washington, DC, USA
| | - Malay K Mridha
- Center for Non-communicable Diseases and Nutrition, BRAC James P Grant School of Public Health, Dhaka, Bangladesh
| | - Kuda Mutasa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Abu M Naser
- International Center for Diarrheal Diseases Research (icddr,b), Dhaka, Bangladesh,Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Rina R Paul
- Center for Non-communicable Diseases and Nutrition, BRAC James P Grant School of Public Health, Dhaka, Bangladesh
| | - Harriet Okronipa
- Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, NY, USA
| | | | | | - Mahbubur Rahman
- International Center for Diarrheal Diseases Research (icddr,b), Dhaka, Bangladesh
| | - Kerry Schulze
- Program in Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Laura E Smith
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York at Buffalo, Buffalo, NY, USA
| | - Ann M Weber
- Division of Epidemiology, School of Community Health Sciences, University of Nevada, Reno, Reno, NV, USA
| | | | - Kathryn G Dewey
- Institute for Global Nutrition and Department of Nutrition, University of California, Davis, Davis, CA, USA
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da Silva Lopes K, Yamaji N, Rahman MO, Suto M, Takemoto Y, Garcia-Casal MN, Ota E. Nutrition-specific interventions for preventing and controlling anaemia throughout the life cycle: an overview of systematic reviews. Cochrane Database Syst Rev 2021; 9:CD013092. [PMID: 34564844 PMCID: PMC8464655 DOI: 10.1002/14651858.cd013092.pub2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Anaemia is a prevalent health problem worldwide. Some types are preventable or controllable with iron supplementation (pills or drops), fortification (sprinkles or powders containing iron added to food) or improvements to dietary diversity and quality (e.g. education or counselling). OBJECTIVES To summarise the evidence from systematic reviews regarding the benefits or harms of nutrition-specific interventions for preventing and controlling anaemia in anaemic or non-anaemic, apparently healthy populations throughout the life cycle. METHODS In August 2020, we searched MEDLINE, Embase and 10 other databases for systematic reviews of randomised controlled trials (RCTs) in anaemic or non-anaemic, apparently healthy populations. We followed standard Cochrane methodology, extracting GRADE ratings where provided. The primary outcomes were haemoglobin (Hb) concentration, anaemia, and iron deficiency anaemia (IDA); secondary outcomes were iron deficiency (ID), severe anaemia and adverse effects (e.g. diarrhoea, vomiting). MAIN RESULTS We included 75 systematic reviews, 33 of which provided GRADE assessments; these varied between high and very low. Infants (6 to 23 months; 13 reviews) Iron supplementation increased Hb levels and reduced the risk of anaemia and IDA in two reviews. Iron fortification of milk or cereals, multiple-micronutrient powder (MMNP), home fortification of complementary foods, and supplementary feeding increased Hb levels and reduced the risk of anaemia in six reviews. In one review, lipid-based nutrient supplementation (LNS) reduced the risk of anaemia. In another, caterpillar cereal increased Hb levels and IDA prevalence. Food-based strategies (red meat and fortified cow's milk, beef) showed no evidence of a difference (1 review). Preschool and school-aged children (2 to 10 years; 8 reviews) Daily or intermittent iron supplementation increased Hb levels and reduced the risk of anaemia and ID in two reviews. One review found no evidence of difference in Hb levels, but an increased risk of anaemia and ID for the intermittent regime. All suggested that zinc plus iron supplementation versus zinc alone, multiple-micronutrient (MMN)-fortified beverage versus control, and point-of-use fortification of food with iron-containing micronutrient powder (MNP) versus placebo or no intervention may increase Hb levels and reduce the risk of anaemia and ID. Fortified dairy products and cereal food showed no evidence of a difference on the incidence of anaemia (1 review). Adolescent children (11 to 18 years; 4 reviews) Compared with no supplementation or placebo, five types of iron supplementation may increase Hb levels and reduce the risk of anaemia (3 reviews). One review on prevention found no evidence of a difference in anaemia incidence on iron supplementation with or without folic acid, but Hb levels increased. Another suggested that nutritional supplementation and counselling reduced IDA. One review comparing MMN fortification with no fortification observed no evidence of a difference in Hb levels. Non-pregnant women of reproductive age (19 to 49 years; 5 reviews) Two reviews suggested that iron therapy (oral, intravenous (IV), intramuscular (IM)) increased Hb levels; one showed that iron folic acid supplementation reduced anaemia incidence; and another that daily iron supplementation with or without folic acid or vitamin C increased Hb levels and reduced the risk of anaemia and ID. No review reported interventions related to fortification or dietary diversity and quality. Pregnant women of reproductive age (15 to 49 years; 23 reviews) One review apiece suggested that: daily iron supplementation with or without folic acid increased Hb levels in the third trimester or at delivery and in the postpartum period, and reduced the risk of anaemia, IDA and ID in the third trimester or at delivery; intermittent iron supplementation had no effect on Hb levels and IDA, but increased the risk of anaemia at or near term and ID, and reduced the risk of side effects; vitamin A supplementation alone versus placebo, no intervention or other micronutrient might increase maternal Hb levels and reduce the risk of maternal anaemia; MMN with iron and folic acid versus placebo reduced the risk of anaemia; supplementation with oral bovine lactoferrin versus oral ferrous iron preparations increased Hb levels and reduced gastrointestinal side effects; MNP for point-of-use fortification of food versus iron and folic acid supplementation might decrease Hb levels at 32 weeks' gestation and increase the risk of anaemia; and LNS versus iron or folic acid and MMN increased the risk of anaemia. Mixed population (all ages; 22 reviews) Iron supplementation versus placebo or control increased Hb levels in healthy children, adults, and elderly people (4 reviews). Hb levels appeared to increase and risk of anaemia and ID decrease in two reviews investigating MMN fortification versus placebo or no treatment, iron fortified flour versus control, double fortified salt versus iodine only fortified salt, and rice fortification with iron alone or in combination with other micronutrients versus unfortified rice or no intervention. Each review suggested that fortified versus non-fortified condiments or noodles, fortified (sodium iron ethylenediaminetetraacetate; NaFeEDTA) versus non-fortified soy sauce, and double-fortified salt versus control salt may increase Hb concentration and reduce the risk of anaemia. One review indicated that Hb levels increased for children who were anaemic or had IDA and received iron supplementation, and decreased for those who received dietary interventions. Another assessed the effects of foods prepared in iron pots, and found higher Hb levels in children with low-risk malaria status in two trials, but no difference when comparing food prepared in non-cast iron pots in a high-risk malaria endemicity mixed population. There was no evidence of a difference for adverse effects. Anaemia and malaria prevalence were rarely reported. No review focused on women aged 50 to 65 years plus or men (19 to 65 years plus). AUTHORS' CONCLUSIONS Compared to no treatment, daily iron supplementation may increase Hb levels and reduce the risk of anaemia and IDA in infants, preschool and school-aged children and pregnant and non-pregnant women. Iron fortification of foods in infants and use of iron pots with children may have prophylactic benefits for malaria endemicity low-risk populations. In any age group, only a limited number of reviews assessed interventions to improve dietary diversity and quality. Future trials should assess the effects of these types of interventions, and consider the requirements of different populations.
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Affiliation(s)
| | - Noyuri Yamaji
- Global Health Nursing, Graduate School of Nursing Science, St. Luke's International University, Tokyo, Japan
| | - Md Obaidur Rahman
- Global Health Nursing, Graduate School of Nursing Science, St. Luke's International University, Tokyo, Japan
| | - Maiko Suto
- Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan
| | - Yo Takemoto
- Department of Obstetrics and Gynaecology, School of Medicine, Juntendo University, Tokyo, Japan
| | | | - Erika Ota
- Global Health Nursing, Graduate School of Nursing Science, St. Luke's International University , Tokyo, Japan
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Young MF, Mehta RV, Gosdin L, Kekre P, Verma P, Larson LM, Girard AW, Ramakrishnan U, Chaudhuri I, Srikantiah S, Martorell R. Home Fortification of Complementary Foods Reduces Anemia and Diarrhea among Children Aged 6-18 Months in Bihar, India: A Large-Scale Effectiveness Trial. J Nutr 2021; 151:1983-1992. [PMID: 33880566 PMCID: PMC8245869 DOI: 10.1093/jn/nxab065] [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] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/11/2020] [Accepted: 02/22/2021] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Home fortification of complementary foods with multiple micronutrient powders (MNPs) is recommended to reduce child anemia in resource-poor settings. However, evidence of program effectiveness in India to guide policies and programs is lacking. OBJECTIVES We implemented a large-scale intervention of MNPs in Bihar, India. The primary outcome was MNP consumption and change in hemoglobin concentration among children aged 6-18 mo between baseline and endline (12 mo). Secondary outcomes were change in child weight and length and infant and young child feeding (IYCF) practices (initiation, diversity, and feeding frequency). Ad hoc analyses included changes in anemia; stunting; underweight; wasting; and reported diarrhea, fever, and hospitalization. METHODS We conducted a cluster-randomized, effectiveness trial in >4000 children within the context of ongoing health and nutrition programs implemented by CARE, India. Seventy health subcenters were randomly assigned to receive either MNPs with IYCF counseling (intervention) or IYCF counseling only (control). We used an adjusted difference-in-difference approach using repeat cross-sectional surveys at baseline and endline to evaluate impact. RESULTS At baseline, 75% of intervention and 69% of control children were anemic and 33% were stunted. By endline, 70% of intervention households reported their child had ever consumed MNPs, and of those, 64% had consumed MNPs in the past month. Relative to control, hemoglobin concentration increased (0.22 g/dL; 95% CI: 0.00, 0.44 g/dL) and anemia declined by 7.1 percentage points (pp) (95% CI: -13.5, -0.7 pp). There was no impact on anthropometry nor IYCF practices. However, there was a decline of 8.0 pp (95% CI: -14.9, -1.1 pp) in stunting among children aged 12-18 mo. Diarrhea prevalence in the past 2 wk was reduced by 4.0 pp (95% CI: -7.6, -0.4 pp). CONCLUSIONS Home fortification of complementary foods within a government-run program in Bihar had moderate compliance and caused modest improvements in hemoglobin and reductions in anemia and diarrhea prevalence.
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Affiliation(s)
- Melissa F Young
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Doctoral Program in Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA, USA
| | - Rukshan V Mehta
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Doctoral Program in Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA, USA
| | - Lucas Gosdin
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Doctoral Program in Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA, USA
| | - Priya Kekre
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | | | - Leila M Larson
- Arnold School of Public Health, Department of Health Promotion, Education, and Behavior, University of South Carolina, Columbia, SC, USA
| | - Amy Webb Girard
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Doctoral Program in Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA, USA
| | - Usha Ramakrishnan
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Doctoral Program in Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA, USA
| | | | | | - Reynaldo Martorell
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Doctoral Program in Nutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA, USA
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Hodgins S, Klemm R. Micronutrient Powders for Infants and Young Children. GLOBAL HEALTH, SCIENCE AND PRACTICE 2021; 9:216-219. [PMID: 34048361 PMCID: PMC8324200 DOI: 10.9745/ghsp-d-21-00263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 04/29/2021] [Indexed: 12/02/2022]
Abstract
Providing standalone micronutrient products for household use is not an easy strategy, but under the right conditions, it can work. To be effective, micronutrient powder programs require robust commodity logistics and support of uptake and adherence.
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Affiliation(s)
- Stephen Hodgins
- Editor-in-Chief, Global Health: Science and Practice Journal, and Associate Professor, School of Public Health, University of Alberta, Edmonton, Alberta, Canada.
| | - Rolf Klemm
- Helen Keller International, New York, NY, USA
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Machado MMA, Lopes MDP, Schincaglia RM, da Costa PSS, Coelho ASG, Hadler MCCM. Effect of Fortification with Multiple Micronutrient Powder on the Prevention and Treatment of Iron Deficiency and Anaemia in Brazilian Children: A Randomized Clinical Trial. Nutrients 2021; 13:nu13072160. [PMID: 34201821 PMCID: PMC8308208 DOI: 10.3390/nu13072160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 11/16/2022] Open
Abstract
Fortification with multiple micronutrient powder has been proposed as a public health intervention able to reduce micronutrient deficiencies in children. Our objective was to compare the effectiveness of fortification with multiple micronutrient powder with drug supplementation in the prevention and treatment of iron deficiency and anaemia. This was a cluster trial with anemic and non-anaemic children between six and 42 months old, in randomization data. Non anaemic children received fortification with multiple micronutrient powder or standard drug supplementation of ferrous sulfate associated with folic acid in a prevention dose. Anaemic children who were randomized to receive multiple micronutrient powder also received the recommended iron complementation for anaemia treatment. A total of 162 children were evaluated. The prevalence of anaemia decreased from 13.58 to 1.85%. Iron deficiency decreased from 21.74% to 7.89% (by serum ferritin) and iron deficiency decreased from 66.81 to 38.27% (by soluble transferrin receptor). No difference was identified between interventions for hemoglobin (p = 0.142), serum ferritin (p = 0.288), and soluble transferrin receptor (p = 0.156). Fortification with multiple micronutrient powder was effective in preventing iron deficiency and anaemia in children aged six to 48 months. In anaemic children; it was necessary to supplement the dose of multiple micronutrient powder with ferrous sulfate.
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Affiliation(s)
- Malaine Morais Alves Machado
- Graduate Program in Health Sciences of the Federal University of Goiás, Faculty of Medicine, Federal University of Goiás, Goiânia 74605-050, Goiás, Brazil;
| | | | - Raquel Machado Schincaglia
- Research Laboratory in Clinical and Sports Nutrition, Faculty of Nutrition, Federal University of Goiás, Goiânia 74605-050, Goiás, Brazil;
| | | | - Alexandre Siqueira Guedes Coelho
- Graduate Program in Nutrition and Health of the Federal University of Goiás, Faculty of Nutrition Goiânia, Federal University of Goiás, Goiânia 74605-050, Goiás, Brazil;
| | - Maria Claret Costa Monteiro Hadler
- Graduate Program in Health Sciences of the Federal University of Goiás, Faculty of Medicine, Federal University of Goiás, Goiânia 74605-050, Goiás, Brazil;
- Faculty of Nutrition, Federal University of Goiás, Goiânia 74605-050, Goiás, Brazil;
- Graduate Program in Nutrition and Health of the Federal University of Goiás, Faculty of Nutrition Goiânia, Federal University of Goiás, Goiânia 74605-050, Goiás, Brazil;
- Correspondence: ; Tel.: +55-62-3209-6270
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Besnier E, Thomson K, Stonkute D, Mohammad T, Akhter N, Todd A, Rom Jensen M, Kilvik A, Bambra C. Which public health interventions are effective in reducing morbidity, mortality and health inequalities from infectious diseases amongst children in low- and middle-income countries (LMICs): An umbrella review. PLoS One 2021; 16:e0251905. [PMID: 34111134 PMCID: PMC8191901 DOI: 10.1371/journal.pone.0251905] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 05/04/2021] [Indexed: 01/08/2023] Open
Abstract
Despite significant progress in the last few decades, infectious diseases remain a major threat to child health in low- and middle-income countries (LMICs)-particularly amongst more disadvantaged groups. It is imperative to understand the best available evidence concerning which public health interventions reduce morbidity, mortality and health inequalities in children aged under five years. To address this gap, we carried out an umbrella review (a systematic reviews of reviews) to identify evidence on the effects of public health interventions (promotion, protection, prevention) on morbidity, mortality and/or health inequalities due to infectious diseases amongst children in LMICs. Ten databases were searched for records published between 2014-2021 alongside a manual search of gray literature. Articles were quality-assessed using the Assessment of Multiple Systematic Reviews tool (AMSTAR 2). A narrative synthesis was conducted. We identified 60 systematic reviews synthesizing 453 individual primary studies. A majority of the reviews reported on preventive interventions (n = 48), with a minority on promotion (n = 17) and almost no reviews covering health protection interventions (n = 2). Effective interventions for improving child health across the whole population, as well as the most disadvantaged included communication, education and social mobilization for specific preventive services or tools, such as immunization or bed nets. For all other interventions, the effects were either unclear, unknown or detrimental, either at the overall population level or regarding health inequalities. We found few reviews reporting health inequalities information and the quality of the evidence base was generally low. Our umbrella review identified some prevention interventions that might be useful in reducing under five mortality from infectious diseases in LMICs, particularly amongst the most disadvantaged groups.
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Affiliation(s)
- Elodie Besnier
- Department of Sociology and Political Science, Centre for Global Health Inequalities Research (CHAIN), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Katie Thomson
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Donata Stonkute
- CHAIN, Department of Public Health and Nursing, NTNU, Trondheim, Norway
| | - Talal Mohammad
- CHAIN, Department of Public Health and Nursing, NTNU, Trondheim, Norway
| | - Nasima Akhter
- Department of Anthropology, Durham University, Durham, United Kingdom
| | - Adam Todd
- School of Pharmacy, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Magnus Rom Jensen
- Library Section for Humanities, Education and Social Sciences, NTNU, Trondheim, Norway
| | - Astrid Kilvik
- Medicine and Health Library, NTNU, Trondheim, Norway
| | - Clare Bambra
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
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Owolabi AJ, Senbanjo IO, Oshikoya KA, Boekhorst J, Eijlander RT, Kortman GAM, Hageman JHJ, Samuel F, Melse-Boonstra A, Schaafsma A. Multi-Nutrient Fortified Dairy-Based Drink Reduces Anaemia without Observed Adverse Effects on Gut Microbiota in Anaemic Malnourished Nigerian Toddlers: A Randomised Dose-Response Study. Nutrients 2021; 13:1566. [PMID: 34066577 PMCID: PMC8148581 DOI: 10.3390/nu13051566] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/15/2021] [Accepted: 04/27/2021] [Indexed: 01/15/2023] Open
Abstract
Prevalence of anaemia among Nigerian toddlers is reported to be high, and may cause significant morbidity, affects brain development and function, and results in weakness and fatigue. Although, iron fortification can reduce anaemia, yet the effect on gut microbiota is unclear. This open-label randomised study in anaemic malnourished Nigerian toddlers aimed to decrease anaemia without affecting pathogenic gut bacteria using a multi-nutrient fortified dairy-based drink. The test product was provided daily in different amounts (200, 400 or 600 mL, supplying 2.24, 4.48 and 6.72 mg of elemental iron, respectively) for 6 months. Haemoglobin, ferritin, and C-reactive protein concentrations were measured to determine anaemia, iron deficiency (ID) and iron deficiency anaemia (IDA) prevalence. Faecal samples were collected to analyse gut microbiota composition. All three dosages reduced anaemia prevalence, to 47%, 27% and 18%, respectively. ID and IDA prevalence was low and did not significantly decrease over time. Regarding gut microbiota, Enterobacteriaceae decreased over time without differences between groups, whereas Bifidobacteriaceae and pathogenic E. coli were not affected. In conclusion, the multi-nutrient fortified dairy-based drink reduced anaemia in a dose-dependent way, without stimulating intestinal potential pathogenic bacteria, and thus appears to be safe and effective in treating anaemia in Nigerian toddlers.
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Affiliation(s)
- Adedotun J. Owolabi
- FrieslandCampina WAMCO Nigeria Plc, Industrial Estate, Plot 7b Acme Rd, Ogba, Ikeja, Lagos 100001, Nigeria;
- Division of Human Nutrition and Health, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands;
| | - Idowu O. Senbanjo
- Department of Paediatrics and Child Health, Paediatric Gastroenterology, Hepatology and Nutrition Unit, Lagos State University College of Medicine, Ikeja, Lagos 100001, Nigeria;
| | - Kazeem A. Oshikoya
- Department of Pharmacology, Therapeutic and Toxicology, Lagos State University College of Medicine, Ikeja, Lagos 100001, Nigeria;
| | - Jos Boekhorst
- NIZO Food Research B.V., 6718 ZB Ede, The Netherlands; (J.B.); (R.T.E.); (G.A.M.K.)
| | - Robyn T. Eijlander
- NIZO Food Research B.V., 6718 ZB Ede, The Netherlands; (J.B.); (R.T.E.); (G.A.M.K.)
| | - Guus A. M. Kortman
- NIZO Food Research B.V., 6718 ZB Ede, The Netherlands; (J.B.); (R.T.E.); (G.A.M.K.)
| | | | - Folake Samuel
- Department of Human Nutrition, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan 200005, Nigeria;
| | - Alida Melse-Boonstra
- Division of Human Nutrition and Health, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands;
| | - Anne Schaafsma
- FrieslandCampina, P.O. Box 1551, 3800 BN Amersfoort, The Netherlands;
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Amadi B, Zyambo K, Chandwe K, Besa E, Mulenga C, Mwakamui S, Siyumbwa S, Croft S, Banda R, Chipunza M, Chifunda K, Kazhila L, VanBuskirk K, Kelly P. Adaptation of the small intestine to microbial enteropathogens in Zambian children with stunting. Nat Microbiol 2021; 6:445-454. [PMID: 33589804 PMCID: PMC8007472 DOI: 10.1038/s41564-020-00849-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 12/10/2020] [Indexed: 01/30/2023]
Abstract
Environmental enteropathy is a major contributor to growth faltering in millions of children in Africa and South Asia. We carried out a longitudinal, observational and interventional study in Lusaka, Zambia, of 297 children with stunting (aged 2-17 months at recruitment) and 46 control children who had good growth (aged 1-5 months at recruitment). Control children contributed data only at baseline. Children were provided with nutritional supplementation of daily cornmeal-soy blend, an egg and a micronutrient sprinkle, and were followed up to 24 months of age. Children whose growth did not improve over 4-6 months of nutritional supplementation were classified as having non-responsive stunting. We monitored microbial translocation from the gut lumen to the bloodstream in the cohort with non-responsive stunting (n = 108) by measuring circulating lipopolysaccharide (LPS), LPS-binding protein and soluble CD14 at baseline and when non-response was declared. We found that microbial translocation decreased with increasing age, such that LPS declined in 81 (75%) of 108 children with non-responsive stunting, despite sustained pathogen pressure and ongoing intestinal epithelial damage. We used confocal laser endomicroscopy and found that mucosal leakiness also declined with age. However, expression of brush border enzyme, nutrient transporter and mucosal barrier genes in intestinal biopsies did not change with age or correlate with biomarkers of microbial translocation. We propose that environmental enteropathy arises through adaptation to pathogen-mediated epithelial damage. Although environmental enteropathy reduces microbial translocation, it does so at the cost of impaired growth. The reduced epithelial surface area imposed by villus blunting may explain these findings.
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Affiliation(s)
- Beatrice Amadi
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Kanekwa Zyambo
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Kanta Chandwe
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Ellen Besa
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Chola Mulenga
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Simutanyi Mwakamui
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Stepfanie Siyumbwa
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Sophie Croft
- grid.4868.20000 0001 2171 1133Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Rose Banda
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Miyoba Chipunza
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Kapula Chifunda
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Lydia Kazhila
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Kelley VanBuskirk
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia
| | - Paul Kelly
- grid.12984.360000 0000 8914 5257Tropical Gastroenterology and Nutrition Group, University of Zambia School of Medicine, Lusaka, Zambia ,grid.4868.20000 0001 2171 1133Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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Cappellini MD, Russo R, Andolfo I, Iolascon A. Inherited microcytic anemias. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2020; 2020:465-470. [PMID: 33275715 PMCID: PMC7727536 DOI: 10.1182/hematology.2020000158] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Inherited microcytic anemias can be broadly classified into 3 subgroups: (1) defects in globin chains (hemoglobinopathies or thalassemias), (2) defects in heme synthesis, and (3) defects in iron availability or iron acquisition by the erythroid precursors. These conditions are characterized by a decreased availability of hemoglobin (Hb) components (globins, iron, and heme) that in turn causes a reduced Hb content in red cell precursors with subsequent delayed erythroid differentiation. Iron metabolism alterations remain central to the diagnosis of microcytic anemia, and, in general, the iron status has to be evaluated in cases of microcytosis. Besides the very common microcytic anemia due to acquired iron deficiency, a range of hereditary abnormalities that result in actual or functional iron deficiency are now being recognized. Atransferrinemia, DMT1 deficiency, ferroportin disease, and iron-refractory iron deficiency anemia are hereditary disorders due to iron metabolism abnormalities, some of which are associated with iron overload. Because causes of microcytosis other than iron deficiency should be considered, it is important to evaluate several other red blood cell and iron parameters in patients with a reduced mean corpuscular volume (MCV), including mean corpuscular hemoglobin, red blood cell distribution width, reticulocyte hemoglobin content, serum iron and serum ferritin levels, total iron-binding capacity, transferrin saturation, hemoglobin electrophoresis, and sometimes reticulocyte count. From the epidemiological perspective, hemoglobinopathies/thalassemias are the most common forms of hereditary microcytic anemia, ranging from inconsequential changes in MCV to severe anemia syndromes.
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Affiliation(s)
| | - Roberta Russo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy; and
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Immacolata Andolfo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy; and
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Achille Iolascon
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy; and
- CEINGE Biotecnologie Avanzate, Naples, Italy
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Horino M, Bahar L, Al-Jadba G, Habash R, Akihiro S, West KP. Dietary Inadequacy, Micronutrient Deficiencies, and Approaches to Preventing Poor Nutrition in the Gaza Strip. Food Nutr Bull 2020; 41:503-511. [PMID: 33131324 PMCID: PMC7768887 DOI: 10.1177/0379572120967819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Palestine refugees comprise the largest refugee population in the world, most of whom are encamped in Middle Eastern countries. In the Gaza Strip, where ∼1.4 million Palestinians reside, there are high prevalences of anemia and multiple micronutrient deficiencies (MNDs), including those of iron, zinc, vitamins A, B12, D, and E, ranging from 11.4% to 84.7% among pregnant women and 2.9% to 70.9% among preschool children. Dietary diversification and adequate food fortification are framed in policies but remain aspirational goals. Alternative, effective, targeted preventive approaches include, for women, replacement of antenatal iron-folic acid with multiple micronutrient supplementation, and for young children, point-of-use multiple micronutrient powder fortification to prevent anemia, both of which can reduce other MNDs and may bring additional health benefits. These interventions coupled with monitoring of dietary intakes, periodic assessment of MNDs, and implementation research to improve existing nutrition interventions are warranted to protect the health of the Middle East Palestinian diaspora.
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Affiliation(s)
- Masako Horino
- Department of International Health, Center for Human Nutrition and Sight and Life Global Nutrition Research Institute, 25802Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,Department of Health, 108603United Nations Relief and Works Agency for the Palestine Refugees in the Near East, Amman, Jordan
| | - Lina Bahar
- Nutrition Surveillance and Studies Division, Ministry of Health, State of Palestine, West Bank, Palestinian Territory, occupied
| | - Ghada Al-Jadba
- Department of Health, 108603United Nations Relief and Works Agency for the Palestine Refugees in the Near East, Amman, Jordan
| | - Rami Habash
- Department of Health, 108603United Nations Relief and Works Agency for the Palestine Refugees in the Near East, Amman, Jordan
| | - Seita Akihiro
- Department of Health, 108603United Nations Relief and Works Agency for the Palestine Refugees in the Near East, Amman, Jordan
| | - Keith P West
- Department of International Health, Center for Human Nutrition and Sight and Life Global Nutrition Research Institute, 25802Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Stoffel NU, Uyoga MA, Mutuku FM, Frost JN, Mwasi E, Paganini D, van der Klis FRM, Malhotra IJ, LaBeaud AD, Ricci C, Karanja S, Drakesmith H, King CH, Zimmermann MB. Iron Deficiency Anemia at Time of Vaccination Predicts Decreased Vaccine Response and Iron Supplementation at Time of Vaccination Increases Humoral Vaccine Response: A Birth Cohort Study and a Randomized Trial Follow-Up Study in Kenyan Infants. Front Immunol 2020; 11:1313. [PMID: 32754150 PMCID: PMC7369313 DOI: 10.3389/fimmu.2020.01313] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 05/26/2020] [Indexed: 12/21/2022] Open
Abstract
Background: Iron deficiency may impair adaptive immunity and is common among African infants at time of vaccination. Whether iron deficiency impairs vaccine response and whether iron supplementation improves humoral vaccine response is uncertain. Methods: We performed two studies in southern coastal Kenya. In a birth cohort study, we followed infants to age 18 mo and assessed whether anemia or iron deficiency at time of vaccination predicted vaccine response to three-valent oral polio, diphtheria-tetanus-whole cell pertussis-Haemophilus influenzae type b vaccine, ten-valent pneumococcal-conjugate vaccine and measles vaccine. Primary outcomes were anti-vaccine-IgG and seroconversion at age 24 wk and 18 mo. In a randomized trial cohort follow-up, children received a micronutrient powder (MNP) with 5 mg iron daily or a MNP without iron for 4 mo starting at age 7.5 mo and received measles vaccine at 9 and 18 mo; primary outcomes were anti-measles IgG, seroconversion and avidity at age 11.5 mo and 4.5 y. Findings: In the birth cohort study, 573 infants were enrolled and 303 completed the study. Controlling for sex, birthweight, anthropometric indices and maternal antibodies, hemoglobin at time of vaccination was the strongest positive predictor of: (A) anti-diphtheria and anti-pertussis-IgG at 24 wk (p = 0.0071, p = 0.0339) and 18 mo (p = 0.0182, p = 0.0360); (B) anti-pertussis filamentous hemagglutinin-IgG at 24 wk (p = 0.0423); and (C) anti-pneumococcus 19 IgG at 18 mo (p = 0.0129). Anemia and serum transferrin receptor at time of vaccination were the strongest predictors of seroconversion against diphtheria (p = 0.0484, p = 0.0439) and pneumococcus 19 at 18 mo (p = 0.0199, p = 0.0327). In the randomized trial, 155 infants were recruited, 127 and 88 were assessed at age 11.5 mo and 4.5 y. Compared to infants that did not receive iron, those who received iron at time of vaccination had higher anti-measles-IgG (p = 0.0415), seroconversion (p = 0.0531) and IgG avidity (p = 0.0425) at 11.5 mo. Interpretation: In Kenyan infants, anemia and iron deficiency at time of vaccination predict decreased response to diphtheria, pertussis and pneumococcal vaccines. Primary response to measles vaccine may be increased by iron supplementation at time of vaccination. These findings argue that correction of iron deficiency during early infancy may improve vaccine response.
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Affiliation(s)
- Nicole U Stoffel
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, Laboratory of Human Nutrition, ETH Zürich, Zurich, Switzerland
| | - Mary A Uyoga
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, Laboratory of Human Nutrition, ETH Zürich, Zurich, Switzerland
| | - Francis M Mutuku
- Department of Environment and Health Sciences, Technical University Mombasa, Mombasa, Kenya
| | - Joe N Frost
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, United Kingdom
| | - Edith Mwasi
- Pediatrics Department, Msambweni County Referral Hospital, Msambweni, Kenya
| | - Daniela Paganini
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, Laboratory of Human Nutrition, ETH Zürich, Zurich, Switzerland
| | - Fiona R M van der Klis
- Centre for Infectious Disease Control, National Institute for Public Health and Environment (RIVM), Bilthoven, Netherlands
| | - Indu J Malhotra
- Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - A Desiráe LaBeaud
- Division of Infectious Diseases, Department of Pediatrics, Lucille Packard Children's Hospital at Stanford School of Medicine, Stanford, CA, United States
| | - Cristian Ricci
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, Leipzig, Germany
| | - Simon Karanja
- Department of Medical Epidemiology, College of Health Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | - Hal Drakesmith
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, United Kingdom.,Haematology Theme, NIHR Oxford Biomedical Research Centre, Oxford, United Kingdom
| | - Charles H King
- Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Michael B Zimmermann
- Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, Laboratory of Human Nutrition, ETH Zürich, Zurich, Switzerland
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40
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Iron Deficiency Anemia in Children Residing in High and Low-Income Countries: Risk Factors, Prevention, Diagnosis and Therapy. Mediterr J Hematol Infect Dis 2020; 12:e2020041. [PMID: 32670519 PMCID: PMC7340216 DOI: 10.4084/mjhid.2020.041] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/12/2020] [Indexed: 12/22/2022] Open
Abstract
Iron deficiency and iron-deficiency anemia (IDA) affects approximately two billion people worldwide, and most of them reside in low- and middle-income countries. In these nations, additional causes of anemia include parasitic infections like malaria, other nutritional deficiencies, chronic diseases, hemoglobinopathies, and lead poisoning. Maternal anemia in resource-poor nations is associated with low birth weight, increased perinatal mortality, and decreased work productivity. Maintaining a normal iron balance in these settings is challenging, as iron-rich foods with good bioavailability are of animal origin and either expensive and/or available in short supply. Apart from infrequent consumption of meat, inadequate vitamin C intake, and diets rich in inhibitors of iron absorption are additional important risk factors for IDA in low-income countries. In-home iron fortification of complementary foods with micronutrient powders has been shown to effectively reduce the risk of iron deficiency and IDA in infants and young children in developing countries but is associated with unfavorable changes in gut flora and induction of intestinal inflammation that may lead to diarrhea and hospitalization. In developed countries, iron deficiency is the only frequent micronutrient deficiency. In the industrialized world, IDA is more common in infants beyond the sixth month of life, in adolescent females with heavy menstrual bleeding, in women of childbearing age and older people. Other special at-risk populations for IDA in developed countries are regular blood donors, endurance athletes, and vegetarians. Several medicinal ferrous or ferric oral iron products exist, and their use is not associated with harmful effects on the overall incidence of infectious illnesses in sideropenic and/or anemic subjects. However, further research is needed to clarify the risks and benefits of supplemental iron for children exposed to parasitic infections in low-income countries, and for children genetically predisposed to iron overload.
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