Transcriptomics

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Evaluation of the potential of non-starch soluble polysaccharides from 3 algae to modulate the immune response and metabolic state in the intestine


ABSTRACT: Non-starch soluble polysaccharides (NSPs) produced by yeasts are used in animal nutrition to improve health and performance. However, the magnitude of the effect may be dependent upon the quantity and the composition of the polysaccharides. As seaweeds are attractive sources of NSPs, this study was set up to evaluate their potential to improve intestinal health. The effect of NSP extracts prepared from Saccharomyces cerevisiae containing β-glucan and mannan (PSY1, positive control) or a mixture of mannanoligosaccharides (PSY2, positive control), micro algae containing β-glucan (PSA1), brown macro algae containing fucoidan and laminarin (PSA2), and green macro algae containing ulvan (PSA3) on intestinal porcine epithelial cells J2 (IPEC-J2) was studied in the presence and absence of the enterotoxigenic bacterium Escherichia coli k99 strain (ETEC) as an in vitro challenge. The E.coli-k99 strain with adhesion factor F41 (41/32) was isolated from a mastitis-infected udder. In addition, a mixed extract prepared from vegatal orgin supplemented with phenolic compounds from vegetal origin, zinc and selenium (9631), and ZnO were tested to compare responses to NSP extracts. Gene expression was measured in IPEC-J2 cells after 2 and 6 hours of incubation using “whole genome” porcine microarrays (submission as a conference paper at the SEAGRICULTURE 2017 6th International Seaweed Conference).

ORGANISM(S): Sus scrofa

PROVIDER: GSE100838 | GEO | 2023/06/01

REPOSITORIES: GEO

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