Dietary supplementation of 3′-sialyllactose or 6′-sialyllactose elicits minimal influence on cognitive and brain development in growing pigs

Autor: Rebecca K. Golden, Loretta T. Sutkus, Sharon M. Donovan, Ryan N. Dilger
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Behavioral Neuroscience, Vol 17 (2024)
Druh dokumentu: article
ISSN: 1662-5153
DOI: 10.3389/fnbeh.2023.1337897
Popis: Sialylated human milk oligosaccharides (HMO), such as 3′-sialyllactose (3′-SL) and 6′-sialyllactose (6′-SL), are abundant throughout lactation and at much higher concentrations than are present in bovine milk or infant formulas. Previous studies have suggested that sialylated HMO may have neurocognitive benefits in early life. Recent research has focused on infant formula supplementation with key nutrients and bioactives to narrow the developmental gap between formula-fed and breastfed infants. Herein, we investigated the impact of supplemental 3′-SL or 6′-SL on cognitive and brain development at two time-points [postnatal days (PND) 33 and 61]. Two-day-old piglets (N = 75) were randomly assigned to commercial milk replacer ad libitum without or with 3′-SL or 6′-SL (added in a powdered form at a rate of 0.2673% on an as-is weight basis). Cognitive development was assessed via novel object recognition and results were not significant at both time-points (p > 0.05). Magnetic resonance imaging was used to assess structural brain development. Results varied between scan type, diet, and time-point. A main effect of diet was observed for absolute volume of white matter and 9 other regions of interest (ROI), as well as for relative volume of the pons on PND 30 (p 0.05). However, several dietary differences across the diffusion outcomes were observed on PND 58 (p
Databáze: Directory of Open Access Journals