Butyrate is a naturally occurring monocarboxylate, produced in the lumen of the colon by microbial fermentation of complex carbohydrates that escape digestion in the small intestine. It serves as the principal metabolic fuel for colonic epithelial cells, and exerts a variety of effects important to intestinal health and function. This brief discussion focuses on the route, role and regulation of butyrate transport in the large intestine, with particular emphasis on the significance of butyrate transport to the ability of butyrate to modulate expression of genes important to the processes maintaining colonic tissue homoeostasis.

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