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Release of the free nitric oxide radical (NO) and EDRF from endothelial cells

Record type: Article

Release of nitric oxide (NO) from cultured macrovascular endothelial cells (EC) and from isolated perfused guinea pig hearts was measured with a specific spectrophotometric assay. Under basal conditions NO was continuously released from cultured cells and from isolated hearts into the coronary effluent perfusate. Bradykinin (10(-7) M) increased rate of NO release maximally two- to three-fold in both experimental models. Onset of NO release always preceded start of vasodilation (less than 15 s). Our results provide evidence that under basal and bradykinin-stimulated conditions. 1) endothelial cells release nitric oxide as a free radical, 2) NO is solely responsible for the vasodilatory properties of EDRF and, 3) under in vivo conditions the endogenous formation of NO is quantitatively sufficient to influence the coronary vascular tone and thus, may play an important role in the regulation of coronary vascular resistance.

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Citation

Kelm, M., Feelisch, Martin and Schrader, J. (1989) Release of the free nitric oxide radical (NO) and EDRF from endothelial cells Zeitschrift für Kardiologie, 78, supplement 6, pp. 70-74. (PMID:2618132).

More information

Published date: 1989
Organisations: Clinical & Experimental Sciences

Identifiers

Local EPrints ID: 337918
URI: http://eprints.soton.ac.uk/id/eprint/337918
ISSN: 0300-5860
PURE UUID: 6d6b4fc8-8598-4f2e-a31d-f337c1e290a1
ORCID for Martin Feelisch: ORCID iD orcid.org/0000-0003-2320-1158

Catalogue record

Date deposited: 14 Jun 2012 10:52
Last modified: 18 Jul 2017 06:00

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Contributors

Author: M. Kelm
Author: Martin Feelisch ORCID iD
Author: J. Schrader

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