A Microbiota-Directed Food Intervention for Undernourished Children.

BACKGROUND: More than 30 million children worldwide have moderate acute malnutrition. Current treatments have limited effectiveness, and much remains unknown about the pathogenesis of this condition. Children with moderate acute malnutrition have perturbed development of their gut microbiota. METHODS: In this study, we provided a microbiota-directed complementary food prototype (MDCF-2) or a ready-to-use supplementary food (RUSF) to 123 slum-dwelling Bangladeshi children with moderate acute malnutrition between the ages of 12 months and 18 months. The supplementation was given twice daily for 3 months, followed by 1 month of monitoring. We obtained weight-for-length, weight-for-age, and length-for-age z scores and mid-upper-arm circumference values at baseline and every 2 weeks during the intervention period and at 4 months. We compared the rate of change of these related phenotypes between baseline and 3 months and between baseline and 4 months. We also measured levels of 4977 proteins in plasma and 209 bacterial taxa in fecal samples. RESULTS: A total of 118 children (59 in each study group) completed the intervention. The rates of change in the weight-for-length and weight-for-age z scores are consistent with a benefit of MDCF-2 on growth over the course of the study, including the 1-month follow-up. Receipt of MDCF-2 was linked to the magnitude of change in levels of 70 plasma proteins and of 21 associated bacterial taxa that were positively correlated with the weight-for-length z score (P<0.001 for comparisons of both protein and bacterial taxa). These proteins included mediators of bone growth and neurodevelopment. CONCLUSIONS: These findings provide support for MDCF-2 as a dietary supplement for young children with moderate acute malnutrition and provide insight into mechanisms by which this targeted manipulation of microbiota components may be linked to growth. (Supported by the Bill and Melinda Gates Foundation and the National Institutes of Health; ClinicalTrials.gov number, NCT04015999.).

Factors affecting low coverage of the vitamin A supplementation program among young children admitted in an urban diarrheal treatment facility in Bangladesh.

BACKGROUND: Vitamin A deficiency (VAD) is one of the most prevalent micronutrient deficiencies in the world. About 2% of all deaths among children under five years of age (U-5) are attributable to VAD. Currently evidence-based knowledge is grossly lacking about the factors associated with low coverage of VAS. OBJECTIVE: This study aims to determine the factors affecting low coverage of the vitamin A supplementation program among the young children admitted to a diarrheal hospital. METHODS: We extracted data from the Diarrhoeal Diseases Surveillance System (DDSS) on children aged 12-59 months admitted to the Dhaka Hospital of the International Centre for Diarrhoeal Disease Research, Bangladesh, from 1996 to 2014. A logistic regression model was constructed to identify the factors that were significantly associated with non-compliance to vitamin A supplementation (VAS). Strength of association was determined by calculating adjusted odds ratios (aORs) and their 95% confidence intervals. RESULTS: A total of 8649 children were enrolled and comprised the analyzable sample. Their mean ± SD age was 25.2 ± 12.8 months and 40% were female. Around 68% of them had received VAS in the previous 6 months. In the logistic regression analysis, older (>24 months) children (aOR: 1.38; 95% CI: 1.24-1.53), having an illiterate mother (aOR: 1.43; 95% CI: 1.27-1.64), having an illiterate father (aOR: 1.3; 95% CI: 1.16-1.50), coming from the two lowest wealth quintiles (aOR:1.13; 95% CI: 1.02-1.27), with an average monthly household income <10,000 BDT, (1 USD = 60 BDT) and children who had not received the measles vaccine (aOR: 1.87; 95% CI: 1.63-2.19) were more likely not to have received VAS in the preceding six months. We also observed an increase in coverage of VAS from 61% to 76% over the last 18 years (p < 0.001). CONCLUSIONS: Non-compliance to VAS was found to be associated with older children, parents without formal schooling, family with greater poverty, low family income, and lack of measles vaccination. Specific programmatic approaches including prioritizing vulnerable children may enhance vitamin A coverage.