Cellular Control of Brain Capillary Blood Flow: In Vivo Imaging Veritas.

Abstract:

:The precise modulation of regional cerebral blood flow during neural activation is important for matching local energetic demand and supply and clearing brain metabolites. Here we discuss advances facilitated by high-resolution optical in vivo imaging techniques that for the first time have provided direct visualization of capillary blood flow and its modulation by neural activity. We focus primarily on studies of microvascular flow, mural cell control of vessel diameter, and oxygen level-dependent changes in red blood cell deformability. We also suggest methodological standards for best practices when studying microvascular perfusion, partly motivated by recent controversies about the precise location within the microvascular tree where neurovascular coupling is initiated, and the role of mural cells in the control of vasomotility.

journal_name

Trends Neurosci

journal_title

Trends in neurosciences

authors

Grutzendler J,Nedergaard M

doi

10.1016/j.tins.2019.05.009

subject

Has Abstract

pub_date

2019-08-01 00:00:00

pages

528-536

issue

8

eissn

0166-2236

issn

1878-108X

pii

S0166-2236(19)30090-6

journal_volume

42

pub_type

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