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Mechanisms underlying the vasorelaxant effect of hydrogen sulfide on human saphenous vein

Authorized Users Only
2021
Authors
Marinko, Marija
Hou, Hai-Tao
Stojanović, Ivan
Milojević, Predrag
Nenezić, Dragoslav
Kanjuh, Vladimir
Yang, Qin
He, Guo-Wei
Novaković, Aleksandra
Article (Published version)
Metadata
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Abstract
Hydrogen sulfide (H2S) represents the third and the youngest member of the gaseous transmitters family. The dominant effect of H2S on isolated vessels is vasodilation. As the mechanism of H2S-induced relaxation in human vessels remains unclear, the present study aimed to investigate the effects of H2S donor, sodium hydrosulfide (NaHS), on isolated human saphenous vein (HSV) and to determine the mechanism of action. Our results showed that NaHS (1 µM–3 mM) induced a concentration-dependent relaxation of endothelium-intact HSV rings pre-contracted by phenylephrine. Pre-treatment with L-NAME, ODQ and KT5823 significantly inhibited NaHS-induced relaxation, while indomethacin induced partial inhibition. Among K+ channel blockers, the combination of apamin and TRAM-34 significantly affected the relaxation produced by NaHS, while iberiotoxin and glibenclamide only reduced maximal relaxation of HSV. NaHS partially relaxed endothelium-intact rings pre-contracted by high K+, as well as phenyleph...rine-contracted rings in the presence of nifedipine. Additionally, the incubation of HSV rings with NaHS increased NO production. These results demonstrate that NaHS produces the concentration- and endothelium-dependent relaxation of isolated HSV. Vasorelaxation to NaHS probably involves activation of NO/cGMP/PKG pathway and partially prostacyclin. In addition, different K+ channels subtypes, especially SKCa and IKCa, as well as BKCa and KATP channels in high concentrations of NaHS, probably participate in the NaHS-induced vasorelaxation.

Keywords:
human saphenous vein / hydrogen sulfide / K+ channels / NO pathway / vasorelaxation
Source:
Fundamental and Clinical Pharmacology, 2021, 35, 5, 906-918
Publisher:
  • Blackwell Publishing Ltd
Funding / projects:
  • Investigation of the Effect and Mechanism of Action of Different Vasodilator Substances on the Human Bypass Grafts (RS-175088)

DOI: 10.1111/fcp.12658

ISSN: 0767-3981

WoS: 000627487500001

Scopus: 2-s2.0-85102245792
[ Google Scholar ]
2
URI
https://farfar.pharmacy.bg.ac.rs/handle/123456789/3901
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Pharmacy
TY  - JOUR
AU  - Marinko, Marija
AU  - Hou, Hai-Tao
AU  - Stojanović, Ivan
AU  - Milojević, Predrag
AU  - Nenezić, Dragoslav
AU  - Kanjuh, Vladimir
AU  - Yang, Qin
AU  - He, Guo-Wei
AU  - Novaković, Aleksandra
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3901
AB  - Hydrogen sulfide (H2S) represents the third and the youngest member of the gaseous transmitters family. The dominant effect of H2S on isolated vessels is vasodilation. As the mechanism of H2S-induced relaxation in human vessels remains unclear, the present study aimed to investigate the effects of H2S donor, sodium hydrosulfide (NaHS), on isolated human saphenous vein (HSV) and to determine the mechanism of action. Our results showed that NaHS (1 µM–3 mM) induced a concentration-dependent relaxation of endothelium-intact HSV rings pre-contracted by phenylephrine. Pre-treatment with L-NAME, ODQ and KT5823 significantly inhibited NaHS-induced relaxation, while indomethacin induced partial inhibition. Among K+ channel blockers, the combination of apamin and TRAM-34 significantly affected the relaxation produced by NaHS, while iberiotoxin and glibenclamide only reduced maximal relaxation of HSV. NaHS partially relaxed endothelium-intact rings pre-contracted by high K+, as well as phenylephrine-contracted rings in the presence of nifedipine. Additionally, the incubation of HSV rings with NaHS increased NO production. These results demonstrate that NaHS produces the concentration- and endothelium-dependent relaxation of isolated HSV. Vasorelaxation to NaHS probably involves activation of NO/cGMP/PKG pathway and partially prostacyclin. In addition, different K+ channels subtypes, especially SKCa and IKCa, as well as BKCa and KATP channels in high concentrations of NaHS, probably participate in the NaHS-induced vasorelaxation.
PB  - Blackwell Publishing Ltd
T2  - Fundamental and Clinical Pharmacology
T1  - Mechanisms underlying the vasorelaxant effect of hydrogen sulfide on human saphenous vein
VL  - 35
IS  - 5
SP  - 906
EP  - 918
DO  - 10.1111/fcp.12658
ER  - 
@article{
author = "Marinko, Marija and Hou, Hai-Tao and Stojanović, Ivan and Milojević, Predrag and Nenezić, Dragoslav and Kanjuh, Vladimir and Yang, Qin and He, Guo-Wei and Novaković, Aleksandra",
year = "2021",
abstract = "Hydrogen sulfide (H2S) represents the third and the youngest member of the gaseous transmitters family. The dominant effect of H2S on isolated vessels is vasodilation. As the mechanism of H2S-induced relaxation in human vessels remains unclear, the present study aimed to investigate the effects of H2S donor, sodium hydrosulfide (NaHS), on isolated human saphenous vein (HSV) and to determine the mechanism of action. Our results showed that NaHS (1 µM–3 mM) induced a concentration-dependent relaxation of endothelium-intact HSV rings pre-contracted by phenylephrine. Pre-treatment with L-NAME, ODQ and KT5823 significantly inhibited NaHS-induced relaxation, while indomethacin induced partial inhibition. Among K+ channel blockers, the combination of apamin and TRAM-34 significantly affected the relaxation produced by NaHS, while iberiotoxin and glibenclamide only reduced maximal relaxation of HSV. NaHS partially relaxed endothelium-intact rings pre-contracted by high K+, as well as phenylephrine-contracted rings in the presence of nifedipine. Additionally, the incubation of HSV rings with NaHS increased NO production. These results demonstrate that NaHS produces the concentration- and endothelium-dependent relaxation of isolated HSV. Vasorelaxation to NaHS probably involves activation of NO/cGMP/PKG pathway and partially prostacyclin. In addition, different K+ channels subtypes, especially SKCa and IKCa, as well as BKCa and KATP channels in high concentrations of NaHS, probably participate in the NaHS-induced vasorelaxation.",
publisher = "Blackwell Publishing Ltd",
journal = "Fundamental and Clinical Pharmacology",
title = "Mechanisms underlying the vasorelaxant effect of hydrogen sulfide on human saphenous vein",
volume = "35",
number = "5",
pages = "906-918",
doi = "10.1111/fcp.12658"
}
Marinko, M., Hou, H., Stojanović, I., Milojević, P., Nenezić, D., Kanjuh, V., Yang, Q., He, G.,& Novaković, A.. (2021). Mechanisms underlying the vasorelaxant effect of hydrogen sulfide on human saphenous vein. in Fundamental and Clinical Pharmacology
Blackwell Publishing Ltd., 35(5), 906-918.
https://doi.org/10.1111/fcp.12658
Marinko M, Hou H, Stojanović I, Milojević P, Nenezić D, Kanjuh V, Yang Q, He G, Novaković A. Mechanisms underlying the vasorelaxant effect of hydrogen sulfide on human saphenous vein. in Fundamental and Clinical Pharmacology. 2021;35(5):906-918.
doi:10.1111/fcp.12658 .
Marinko, Marija, Hou, Hai-Tao, Stojanović, Ivan, Milojević, Predrag, Nenezić, Dragoslav, Kanjuh, Vladimir, Yang, Qin, He, Guo-Wei, Novaković, Aleksandra, "Mechanisms underlying the vasorelaxant effect of hydrogen sulfide on human saphenous vein" in Fundamental and Clinical Pharmacology, 35, no. 5 (2021):906-918,
https://doi.org/10.1111/fcp.12658 . .

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