Delayed Administration of D-Ala2-D-Leu5-Enkephalin, a Delta-Opioid Receptor Agonist, Improves Survival in a Rat Model of Sepsis
نویسندگان
چکیده
منابع مشابه
Delta opioid agonist [D-Ala2, D-Leu5] enkephalin (DADLE) reduced oxygen-glucose deprivation caused neuronal injury through the MAPK pathway.
It has been demonstrated that [D-Ala2, D-Leu5] enkephalin (DADLE), a delta opioid agonist, protected neuron from hypoxic neuronal injury by activating the delta opioid receptor (DOR). However, whether DADLE can prevent neuronal injury induced by severe hypoxia like oxygen-glucose deprivation (OGD) is not clear. Here, we investigated whether DADLE has a protective effect against neuronal injury ...
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Photolabile derivatives of D-Ala2-Leu5-enkephalin were prepared by synthetic procedures in which a 2-nitro-4-azidophenyl group is linked to the terminal carboxyl group of the enkephalin by means of an ethylenediamine or ethylenediamine beta-alanine spacer. These peptides bind to opiate receptors with nanomolar affinities and inhibit electrically stimulated contractions of the mouse vas deferens...
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Substantial evidence has been accumulated which suggests that opioid delta receptors may be distinguished on the basis of their involvement in the modulation (i.e., increase or decrease in potency) of mu-mediated antinociception. On this basis, it has been hypothesized that some opioid delta receptors exist within a functional complex with mu receptors (delta complexed (delta cx) receptors) whi...
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Background: In our previous study, we found that regional administration of delta-opioid peptide [D-Ala2, D-Leu5] enkephalin (DADLE) could provide dose-dependent protection on spinal cord ischemia-reperfusion (I/R) injury in rabbits. However, the relative protective molecular mechanisms underlying this neuroprotection remain unclear. The purpose of this study was to investigate whether DADLE pr...
متن کاملDose-dependent neuroprotection of delta opioid peptide [D-Ala2, D-Leu5] enkephalin in neuronal death and retarded behavior induced by forebrain ischemia in rats.
Cerebral ischemic insult, mainly induced by cardiovascular disease, is one of the most severe neurological diseases in clinical. There's mounting evidence showing that delta opioid agonist [D-Ala2, D-Leu5] enkephalin (DADLE) has a tissue-protective effect. However, whether this property is effective to prevent neuronal death induced by forebrain ischemia is not clear. This study was aimed to in...
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ژورنال
عنوان ژورنال: The Tohoku Journal of Experimental Medicine
سال: 2011
ISSN: 0040-8727,1349-3329
DOI: 10.1620/tjem.224.69