| Autor: |
Océane C. B. Martin, Maïwenn Olier, Sandrine Ellero-Simatos, Nathalie Naud, Jacques Dupuy, Laurence Huc, Sylviane Taché, Vanessa Graillot, Mathilde Levêque, Valérie Bézirard, Cécile Héliès-Toussaint, Florence Blas Y. Estrada, Valérie Tondereau, Yannick Lippi, Claire Naylies, Lindsey Peyriga, Cécile Canlet, Anne Marie Davila, François Blachier, Laurent Ferrier, Elisa Boutet-Robinet, Françoise Guéraud, Vassilia Théodorou, Fabrice H. F. Pierre |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Microbiome, Vol 7, Iss 1, Pp 1-18 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2049-2618 |
| DOI: |
10.1186/s40168-019-0685-7 |
| Popis: |
Abstract Background The World Health Organization classified processed and red meat consumption as “carcinogenic” and “probably carcinogenic”, respectively, to humans. Haem iron from meat plays a role in the promotion of colorectal cancer in rodent models, in association with enhanced luminal lipoperoxidation and subsequent formation of aldehydes. Here, we investigated the short-term effects of this haem-induced lipoperoxidation on mucosal and luminal gut homeostasis including microbiome in F344 male rats fed with a haem-enriched diet (1.5 μmol/g) 14–21 days. Results Changes in permeability, inflammation, and genotoxicity observed in the mucosal colonic barrier correlated with luminal haem and lipoperoxidation markers. Trapping of luminal haem-induced aldehydes normalised cellular genotoxicity, permeability, and ROS formation on a colon epithelial cell line. Addition of calcium carbonate (2%) to the haem-enriched diet allowed the luminal haem to be trapped in vivo and counteracted these haem-induced physiological traits. Similar covariations of faecal metabolites and bacterial taxa according to haem-induced lipoperoxidation were identified. Conclusions This integrated approach provides an overview of haem-induced modulations of the main actors in the colonic barrier. All alterations were closely linked to haem-induced lipoperoxidation, which is associated with red meat-induced colorectal cancer risk. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
Full text from SpringerLink