Thursday, February 7, 2013

Gut Bugs Promote Blood Vessel Growth

"The inside of the intestine is lined with villi –protrusions that increase the surface area and therefore the amount of nutrients that can be absorbed.  When mice are bred in germ free environments, and so have no bacteria in their gut, these are long and narrow, but introducing bacteria causes the villi to become significantly wider and increases the density of blood vessels nearby.  This suggests that the presence of bacteria can modify the absorptive capacity of the gut."

Gut Bugs Promote Blood Vessel Growth - The Naked Scientists