2018
DOI: 10.1016/j.bja.2017.11.110
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Cardiac μ-opioid receptor contributes to opioid-induced cardioprotection in chronic heart failure

Abstract: Cardiac μ-opioid receptors were substantially up-regulated during heart failure, which increased DAMGO-induced cardioprotection against I/R injury.

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Cited by 32 publications
(22 citation statements)
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“…In ischemic pre-conditioning rodent models, morphine exerted cardio-protective effects, as shown by reduced infarct size and area at risk [ 46 ]. Unfortunately, numerous studies have only been performed ex vivo in isolated hearts [ 52 , 53 , 54 , 55 ] or in vitro [ 56 ]. This complicates a direct extrapolation to the in vivo situation and particularly to an inflammatory disease as CVB3-induced myocarditis in which the immune system plays a predominant role.…”
Section: Resultsmentioning
confidence: 99%
“…In ischemic pre-conditioning rodent models, morphine exerted cardio-protective effects, as shown by reduced infarct size and area at risk [ 46 ]. Unfortunately, numerous studies have only been performed ex vivo in isolated hearts [ 52 , 53 , 54 , 55 ] or in vitro [ 56 ]. This complicates a direct extrapolation to the in vivo situation and particularly to an inflammatory disease as CVB3-induced myocarditis in which the immune system plays a predominant role.…”
Section: Resultsmentioning
confidence: 99%
“…Meanwhile, activation of the k receptors directly participates in the stimulation of the NOS/NO signaling pathway [107] and involve protein kinases pathways as AKT/Pi3K and ERK/MAPK [108]. Morphine or remifentanil administration before myocardial IRI can induce cardioprotection through the µ receptors via the ERK/GSK-3b signaling pathway [109]. This receptor has also been postulated as a potential therapeutic target for opioid-induced protection during heart failure [105,109].…”
Section: Extra-renal Opioid Preconditioning Mechanismsmentioning
confidence: 99%
“…Morphine or remifentanil administration before myocardial IRI can induce cardioprotection through the µ receptors via the ERK/GSK-3b signaling pathway [109]. This receptor has also been postulated as a potential therapeutic target for opioid-induced protection during heart failure [105,109].…”
Section: Extra-renal Opioid Preconditioning Mechanismsmentioning
confidence: 99%
“…Research on opioid receptor activation in the adult myocardium has focused mainly on DOR and KOR while the contributions of MOR have mainly been ignored due to its low expression in healthy cardiac tissue [ 72 , 73 , 74 ]. However, MOR expression and its ligand-binding activity increase after ligation of the coronary artery in animal models and in isolated failing hearts [ 75 , 76 ]. Morphine or remifentanil administration before myocardial IRI induces MOR-mediated protection in failing hearts but not in healthy ones [ 76 ].…”
Section: Mechanisms Of Opioid Conditioning In the Heartmentioning
confidence: 99%
“…However, MOR expression and its ligand-binding activity increase after ligation of the coronary artery in animal models and in isolated failing hearts [ 75 , 76 ]. Morphine or remifentanil administration before myocardial IRI induces MOR-mediated protection in failing hearts but not in healthy ones [ 76 ]. These protective effects appear to be dependent on phosphorylation of ERK1/2 and glycogen synthase kinase 3-βdownstream of MOR activation.…”
Section: Mechanisms Of Opioid Conditioning In the Heartmentioning
confidence: 99%