Johansson-Hansson et al; colon mucus has dense inner layer (sterile) and loose outer layer (microbiota-permissive); MUC2 polymerised network; barrier against pathogens.
Johansson-Hansson et al; colon mucus has dense inner layer (sterile) and loose outer layer (microbiota-permissive); MUC2 polymerised network; barrier against pathogens.