Danielle Jeffrey

2 weeks ago | science.org | Hannah Ferris |Scott Earley |Leslie K. Ferrarelli |Danielle Jeffrey

Editor’s summaryIncreased intraluminal pressure in the brain elicits the constriction of arterioles, which is usually mediated by smooth muscle cells situated in arteriole walls. However, Ferris et al. found that, in the mouse brain, this role was extended to mural cells called pericytes that reside on the transitional blood vessel segments between arterioles and capillaries (see also the Focus by Earley).