TY  - JOUR
AU  - Gojković-Bukarica, Ljiljana
AU  - Novaković, Aleksandra
AU  - Kanjuh, Vladimir
AU  - Bumbasirević, Marko
AU  - Lesić, Aleksandar
AU  - Heinle, Helmut
PY  - 2008
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1041
AB  - Recently it has been suggested that resveratrol relaxes different isolated arteries. The present study addressed the question whether different ion channels are involved in the endothelium-independent mechanism of vasodilatation induced by resveratrol. For that purpose, we tested the action of resveratrol on the rat mesenteric artery without endothelium. Resveratrol induced con centration-dependent relaxation of rat mesenteric artery. Among the K+-channel blockers, 4-amynopiridine (4-AP) moderately antagonized the resveratrol-induced relaxation, while glibendamide, tetraethylammonium chloride, charybdotoxin, margatoxin, and barium chloride did not inhibit resveratrol-induced vasorelaxation. In rings, precontracted with 100 mM K+, the relaxant responses to resveratrol were highly significantly shifted to the right compared to those obtained in rings precontracted with phenylephrine, but resveratrol-induced maximal relaxation was only slightly affected. In order to minimize the influence of K+ channels and voltage-gated Ca2+ channels (VGCCs) in vascular smooth muscle, the third contraction was made by 100 in M K- in the presence of nifedipine. The relaxant response to resveratrol was abolished. Thus, the mechanism of vasorelaxation induced by resveratrol probably involves activation of 4-AP-sensitive K+ channels. Its ability to completely relax the mesenteric artery precontracted with K+-rich solution suggests that K channel-independent mechanism(s) are involved in its vasorelaxant effect. It seems that interaction with VGCCs plays a part in this K+ channel-independent effect of resveratrol.
PB  - Japanese Pharmacological Soc, Kyoto
T2  - Journal of Pharmacological Sciences
T1  - A role of ion channels in the endothelium-independent relaxation of rat mesenteric artery induced by resveratrol
VL  - 108
IS  - 1
SP  - 124
EP  - 130
DO  - 10.1254/jphs.08128FP
ER  - 

@article{
author = "Gojković-Bukarica, Ljiljana and Novaković, Aleksandra and Kanjuh, Vladimir and Bumbasirević, Marko and Lesić, Aleksandar and Heinle, Helmut",
year = "2008",
abstract = "Recently it has been suggested that resveratrol relaxes different isolated arteries. The present study addressed the question whether different ion channels are involved in the endothelium-independent mechanism of vasodilatation induced by resveratrol. For that purpose, we tested the action of resveratrol on the rat mesenteric artery without endothelium. Resveratrol induced con centration-dependent relaxation of rat mesenteric artery. Among the K+-channel blockers, 4-amynopiridine (4-AP) moderately antagonized the resveratrol-induced relaxation, while glibendamide, tetraethylammonium chloride, charybdotoxin, margatoxin, and barium chloride did not inhibit resveratrol-induced vasorelaxation. In rings, precontracted with 100 mM K+, the relaxant responses to resveratrol were highly significantly shifted to the right compared to those obtained in rings precontracted with phenylephrine, but resveratrol-induced maximal relaxation was only slightly affected. In order to minimize the influence of K+ channels and voltage-gated Ca2+ channels (VGCCs) in vascular smooth muscle, the third contraction was made by 100 in M K- in the presence of nifedipine. The relaxant response to resveratrol was abolished. Thus, the mechanism of vasorelaxation induced by resveratrol probably involves activation of 4-AP-sensitive K+ channels. Its ability to completely relax the mesenteric artery precontracted with K+-rich solution suggests that K channel-independent mechanism(s) are involved in its vasorelaxant effect. It seems that interaction with VGCCs plays a part in this K+ channel-independent effect of resveratrol.",
publisher = "Japanese Pharmacological Soc, Kyoto",
journal = "Journal of Pharmacological Sciences",
title = "A role of ion channels in the endothelium-independent relaxation of rat mesenteric artery induced by resveratrol",
volume = "108",
number = "1",
pages = "124-130",
doi = "10.1254/jphs.08128FP"
}

Gojković-Bukarica, L., Novaković, A., Kanjuh, V., Bumbasirević, M., Lesić, A.,& Heinle, H.. (2008). A role of ion channels in the endothelium-independent relaxation of rat mesenteric artery induced by resveratrol. in Journal of Pharmacological Sciences
Japanese Pharmacological Soc, Kyoto., 108(1), 124-130.
https://doi.org/10.1254/jphs.08128FP

Gojković-Bukarica L, Novaković A, Kanjuh V, Bumbasirević M, Lesić A, Heinle H. A role of ion channels in the endothelium-independent relaxation of rat mesenteric artery induced by resveratrol. in Journal of Pharmacological Sciences. 2008;108(1):124-130.
doi:10.1254/jphs.08128FP .

Gojković-Bukarica, Ljiljana, Novaković, Aleksandra, Kanjuh, Vladimir, Bumbasirević, Marko, Lesić, Aleksandar, Heinle, Helmut, "A role of ion channels in the endothelium-independent relaxation of rat mesenteric artery induced by resveratrol" in Journal of Pharmacological Sciences, 108, no. 1 (2008):124-130,
https://doi.org/10.1254/jphs.08128FP . .