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Ropivacaine-Induced Contraction Is Attenuated by Both Endothelial Nitric Oxide and Voltage-Dependent Potassium Channels in Isolated Rat Aortae
Joint Authors
Ok, Seong-Ho
Yang, Seong Min
Park, Jungchul
Kwon, Seong-Chun
Sohn, Ju-Tae
Sung, Hui-Jin
Choi, Mun-Jeoung
Han, Jeong Yeol
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This study investigated endothelium-derived vasodilators and potassium channels involved in the modulation of ropivacaine-induced contraction.
In endothelium-intact rat aortae, ropivacaine concentration-response curves were generated in the presence or absence of the following inhibitors: the nonspecific nitric oxide synthase (NOS) inhibitor Nω-nitro-L-arginine methyl ester (L-NAME), the neuronal NOS inhibitor Nω-propyl-L-arginine hydrochloride, the inducible NOS inhibitor 1400W dihydrochloride, the nitric oxide-sensitive guanylyl cyclase (GC) inhibitor ODQ, the NOS and GC inhibitor methylene blue, the phosphoinositide-3 kinase inhibitor wortmannin, the cytochrome p450 epoxygenase inhibitor fluconazole, the voltage-dependent potassium channel inhibitor 4-aminopyridine (4-AP), the calcium-activated potassium channel inhibitor tetraethylammonium (TEA), the inward-rectifying potassium channel inhibitor barium chloride, and the ATP-sensitive potassium channel inhibitor glibenclamide.
The effect of ropivacaine on endothelial nitric oxide synthase (eNOS) phosphorylation in human umbilical vein endothelial cells was examined by western blotting.
Ropivacaine-induced contraction was weaker in endothelium-intact aortae than in endothelium-denuded aortae.
L-NAME, ODQ, and methylene blue enhanced ropivacaine-induced contraction, whereas wortmannin, Nω-propyl-L-arginine hydrochloride, 1400W dihydrochloride, and fluconazole had no effect.
4-AP and TEA enhanced ropivacaine-induced contraction; however, barium chloride and glibenclamide had no effect.
eNOS phosphorylation was induced by ropivacaine.
These results suggest that ropivacaine-induced contraction is attenuated primarily by both endothelial nitric oxide and voltage-dependent potassium channels.
American Psychological Association (APA)
Ok, Seong-Ho& Han, Jeong Yeol& Sung, Hui-Jin& Yang, Seong Min& Park, Jungchul& Kwon, Seong-Chun…[et al.]. 2013. Ropivacaine-Induced Contraction Is Attenuated by Both Endothelial Nitric Oxide and Voltage-Dependent Potassium Channels in Isolated Rat Aortae. BioMed Research International،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1030666
Modern Language Association (MLA)
Ok, Seong-Ho…[et al.]. Ropivacaine-Induced Contraction Is Attenuated by Both Endothelial Nitric Oxide and Voltage-Dependent Potassium Channels in Isolated Rat Aortae. BioMed Research International No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1030666
American Medical Association (AMA)
Ok, Seong-Ho& Han, Jeong Yeol& Sung, Hui-Jin& Yang, Seong Min& Park, Jungchul& Kwon, Seong-Chun…[et al.]. Ropivacaine-Induced Contraction Is Attenuated by Both Endothelial Nitric Oxide and Voltage-Dependent Potassium Channels in Isolated Rat Aortae. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1030666
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1030666