Role of Endogenous Opioid System in Ischemic-Induced Late Preconditioning.

Bibliographic Details
Title: Role of Endogenous Opioid System in Ischemic-Induced Late Preconditioning.
Authors: Jan Fraessdorf, Markus W Hollmann, Iris Hanschmann, André Heinen, Nina C Weber, Benedikt Preckel, Ragnar Huhn
Source: PLoS ONE, Vol 10, Iss 7, p e0134283 (2015)
Publisher Information: Public Library of Science (PLoS), 2015.
Publication Year: 2015
Collection: LCC:Medicine
LCC:Science
Subject Terms: Medicine, Science
More Details: Opioid receptors (OR) are involved in myocardial late preconditioning (LPC) induced by morphine and δ1-opioid receptor (δ1-OR) agonists. The role of OR in ischemic-induced LPC is unknown. We investigated whether 1) OR are involved in the trigger and/or mediation phase of LPC and 2) a time course effect on the expression of different opioid receptors and their endogenous ligands exists.Male Wistar rats were randomly allocated to four groups (each group n = 8). Awake animals were ischemic preconditioned by a 5 minutes coronary occlusion. 24 hours later, anesthetized animals underwent 25 minutes coronary occlusion followed by 2 hours of reperfusion. The role of OR was investigated by treatment with intraperitoneal naloxone (Nal) 10 minutes prior to LPC (Nal-LPC; trigger phase) or 10 min prior to sustained ischemia (LPC-Nal; mediation phase).LPC reduced infarct size from 61±10% in controls to 25±9% (P
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1932-6203
Relation: http://europepmc.org/articles/PMC4520665?pdf=render; https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0134283
Access URL: https://doaj.org/article/14f07c05db624dc7a5bcfef7d770ddce
Accession Number: edsdoj.14f07c05db624dc7a5bcfef7d770ddce
Database: Directory of Open Access Journals
More Details
ISSN:19326203
DOI:10.1371/journal.pone.0134283
Published in:PLoS ONE
Language:English