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- W3199699228 abstract "Abstract Exogenous factors that may influence the pathophysiology of Giardia infection remain incompletely understood. We have investigated the role of dietary fat in the pathogenesis of Giardia infection. Male 3 to 4-week-old C57BL/6 mice were fed either a low fat (LF) or a high fat (HF) diet for 12 days and challenged with G. duodenalis . In infected animals, the trophozoite burden was higher in HF + Giardia mice compared to the LF + Giardia group at day 7 post infection. Fatty acids exerted direct pro-growth effects on Giardia trophozoites. Analysis of disease parameters showed that HF + Giardia mice exhibited more mucosal infiltration by inflammatory cells, decreased villus/crypt ratios, goblet cell hyperplasia, mucus disruption, increased gut motility, and elevated fecal water content compared with LF + Giardia . HF diet-dependent exacerbation of Giardia -induced goblet cell hyperplasia was associated with elevated Atoh1 and Muc2 gene expression. Gut microbiota analysis revealed that the HF diet alone induces a taxonomic shift. HF + Giardia mice exhibited microbiota dysbiosis characterized by an increase of Firmicutes and a decrease of Bacteroidetes and significant changes in α- and β-diversity metrics. Taken together, the findings suggest that a HF diet exacerbates the outcome of Giardia infection. The data demonstrate that elevated dietary fat represents an important exogenous factor promoting the pathophysiology of giardiasis." @default.
- W3199699228 created "2021-09-27" @default.
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- W3199699228 date "2021-09-22" @default.
- W3199699228 modified "2023-10-18" @default.
- W3199699228 title "High-fat diet increases the severity of Giardia infection in association with low-grade inflammation and gut microbiota dysbiosis" @default.
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- W3199699228 doi "https://doi.org/10.1038/s41598-021-98262-8" @default.
- W3199699228 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8458452" @default.
- W3199699228 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34552170" @default.
- W3199699228 hasPublicationYear "2021" @default.
- W3199699228 type Work @default.