Solving an Old Dogma: Is it an Arteriole or a Venule?
arterioles
intramural cell
morphology
transmission electron microscopy
venules
Journal
Frontiers in aging neuroscience
ISSN: 1663-4365
Titre abrégé: Front Aging Neurosci
Pays: Switzerland
ID NLM: 101525824
Informations de publication
Date de publication:
2019
2019
Historique:
received:
06
08
2019
accepted:
07
10
2019
entrez:
8
11
2019
pubmed:
7
11
2019
medline:
7
11
2019
Statut:
epublish
Résumé
There are very few reliable methods in the literature to discern with certainty between cerebral arterioles and venules. Smooth muscle cells (SMC) and pericytes are present in both arterioles and venules, so immunocytochemistry for markers specific to intramural cells (IMC) is unreliable. This study employed transmission electron microscopy (TEM) and a canine brain to produce robust criteria for the correct identification of cerebral arterioles and venules based on lumen:vessel wall area, tested against the less accurate lumen diameter:vessel wall thickness. We first used morphology of IMC to identify two distinct groups of vessels; group 1 with morphology akin to venules and group 2 with morphology akin to arterioles. We then quantitatively assessed these vessels for lumen:vessel wall area ratio and lumen diameter:wall thickness ratio. After assessing 112 vessels, we show two distinct groups of vessels that can be separated using lumen:vessel wall area (group 1, 1.89 -10.96 vs. group 2, 0.27-1.57;
Identifiants
pubmed: 31695607
doi: 10.3389/fnagi.2019.00289
pmc: PMC6817770
doi:
Types de publication
Journal Article
Langues
eng
Pagination
289Informations de copyright
Copyright © 2019 MacGregor Sharp, Criswell, Dobson, Finucane, Verma and Carare.
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