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  • Title: Human milk oligosaccharide associated with the firmicutes-to-bacteroidetes ratio among stunted infants in Malang, Indonesia.
    Author: Annisa A, Santoso S, Zuhriyah L, Handayani D.
    Journal: Bratisl Lek Listy; 2024; 125(10):605-611. PubMed ID: 39344763.
    Abstract:
    BACKGROUND: Human milk oligosaccharide (HMO) is a unique component of breastmilk. To date, no study has investigated the correlation between HMO and infant nutritional status particularly through the lens of gut microbiota. Therefore, our study aims to investigate the relationships between 2'-Fucosyllactose (2'-FL) in HMO and Firmicutes/Bacteroidetes (F/B) ratio among stunted infants. METHODS: A case-control study was conducted among 103 mother-infant pairs in Malang City, Indonesia. The quantification of 2'-FL HMO was assessed using High-Performance Liquid Chromatography (HPLC). The F/B ratio was analyzed with real-time poly-chain reaction (RT-PCR). For bivariate analysis, we employed the Spearman correlation and Mann‒Whitney tests, while for multivariate analysis, we utilized multiple linear regression. RESULTS: The findings showed that the stunted nutritional status was detected in 49 out of 103 infants. In this group, 40.81% of mothers of infants with a stunted nutritional status had a secretor-positive status, while all mothers of infants with appropriate nutritional status tested positive for the secretor status (100%). However, the association between maternal secretor status and infant nutritional status was not statistically significant (p>0.05). The average levels of 2'-FL HMO in breast milk were lower in the group with stunted infants compared to non-stunted infants (1.21 mg/L vs 1.40 mg/L). The regression analysis revealed a significant association of 2'-FL HMO levels with the presence of Bacteroidetes and value of the F/B ratio (p>0.05). CONCLUSIONS: The breast milk component 2'-FL HMO significantly influences the gut microbiota of stunted infants. Future research aimed at elucidating the mechanisms by which 2'-FL HMO modulates infant gut microbiota should consider not only concentration and specific bacterial taxa but also intake levels (Tab. 2, Fig. 1, Ref. 37). Text in PDF www.elis.sk Keywords: 2'-fucosyllactose, human milk, oligosaccharide, firmicutes, bacteroidetes, stunting, infant.
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