Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-8-24
pubmed:abstractText
We observed the retinal capillary pericytes of the rat in situ. Whole retinae were mounted, immediately post vivo, in a special tissue chamber for electronic light microscopy at high magnifications. Under electronic light microscopy the pericytes could be clearly distinguished from the endothelial cells. In addition, the contractile apparatus of the pericytes was demonstrated by immunohistochemistry with alpha-smooth muscle actin. Administration of angiotensin II as well as endothelin into the observation chamber caused a significant decrease of the mean capillary diameter (13 and 16% reduction, respectively) within 90 s. Carbachol, bradykinin, and histamine significantly increased the capillary diameter within 90 s (13, 20, and 18% increase, respectively). This study demonstrates that our method allows the analysis of vasoactive effects on the retinal capillary in situ. We observed that this type of capillary can actively change its diameter.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0026-2862
pubmed:author
pubmed:copyrightInfo
Copyright 1998 Academic Press.
pubmed:issnType
Print
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
22-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
In situ observation of living pericytes in rat retinal capillaries.
pubmed:affiliation
Institut für Anatomie der TU Dresden, Dresden, D-01307, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't