Arsenolipids reduce butyrate levels and influence human gut microbiota in a donor-dependent way
Arsenolipids are organic arsenic species with variable toxicity. Accurate assessment of the risks derived from arsenic-contaminated seafood intake requires studying the interplay between arsenolipids and the human gut microbiota. This research used the in vitro mucosal simulator of the human intestinal microbial ecosystem (M-SHIME) to assess the effect of defined chemical standards of arsenolipids (AsFA 362 and AsHC 332) on a simulated healthy human gut microbiota (n = 4). Microbial-derived metabolites were quantified by gas chromatography and microbiota structure was characterized by 16S rRNA gene sequencing. A specific reduction in butyrate production (control=5.28 ± 0.3 mM; AsFAs=4.56 ± 0.4 mM; AsHC 332=4.4 ± 0.6 mM, n = 4 donors), concomitant with a reduction in the abundance of Lachnospiraceae UCG-004 group and the Faecalibacterium genus was observed, albeit in a donor-dependent manner. Furthermore, an increase in Escherichia/Shigella, Proteobacteria and Fusobacterium abundance was observed after arsenolipid treatments, depending on individual microbiota background. These alterations in microbial functionality and microbial community structure suggest a detrimental effect of arsenolipids intake towards the commensal gut microbiome, and consequently, on human health.
Main Authors: | Calatayud Arroyo, Marta, Xiong, Chan, Selma Royo, Marta, van de Wiele, Tom |
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Other Authors: | Austrian Science Fund |
Format: | artículo biblioteca |
Language: | English |
Published: |
Elsevier
2022-10-14
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Subjects: | Arsenic-containing fatty acid, Arsenic-containing hydrocarbon, Dysbiosis, M-SHIME, Microbiota, Toxicity, |
Online Access: | http://hdl.handle.net/10261/285655 http://dx.doi.org/10.13039/501100002428 https://api.elsevier.com/content/abstract/scopus_id/85139857492 |
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