Hyperoxia evokes pericyte-mediated capillary constriction.
20-HETE
Hyperoxia
cerebral blood flow
pericyte
reactive oxygen species
Journal
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism
ISSN: 1559-7016
Titre abrégé: J Cereb Blood Flow Metab
Pays: United States
ID NLM: 8112566
Informations de publication
Date de publication:
Nov 2022
Nov 2022
Historique:
pubmed:
6
7
2022
medline:
19
10
2022
entrez:
5
7
2022
Statut:
ppublish
Résumé
Oxygen supplementation is regularly prescribed to patients to treat or prevent hypoxia. However, excess oxygenation can lead to reduced cerebral blood flow (CBF) in healthy subjects and worsen the neurological outcome of critically ill patients. Most studies on the vascular effects of hyperoxia focus on arteries but there is no research on the effects on cerebral capillary pericytes, which are major regulators of CBF. Here, we used bright-field imaging of cerebral capillaries and modeling of CBF to show that hyperoxia (95% superfused O
Identifiants
pubmed: 35786054
doi: 10.1177/0271678X221111598
pmc: PMC9580167
doi:
Substances chimiques
Endothelin-1
0
Reactive Oxygen Species
0
Oxygen
S88TT14065
Calcium
SY7Q814VUP
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2032-2047Subventions
Organisme : Wellcome Trust
ID : 740427
Pays : United Kingdom
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