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Different responses of mesenteric artery from normotensive and spontaneously hypertensive rats to nitric oxide and its redox congeners

Authorized Users Only
2007
Authors
Oreščanin, Zorana
Milovanović, Slobodan R.
Spasić, Snežana
Jones, David
Spasić, Mihajlo
Article (Published version)
,
Springer
Metadata
Show full item record
Abstract
The conversion of nitric oxide (NO ) into its congeners nitrosonium (NO ) and nitroxyl (HNO/NO) ions may have important consequences for signal transduction and physiological responses. Manganese-containing superoxide dismutase (MnSOD) may convert NO into its redox congeners. In our current work, we have examined the mechanism of sodium nitroprusside (SNP)-induced relaxation of arteries, with or without endothelium, from both normotensive and spontaneously hypertensive (SH) rats in the absence and presence of MnSOD. SNP induced a greater degree of relaxation in normotensive than in SH rats. MnSOD antagonized SNPinduced relaxation and effect was greater in normotensive than hypertensive rats. However, MnSOD even potentiated SNP-induced relaxation in mesenteric arteries with endothelium from SH rats. Our results indicate that HNO/NO-mediated relaxation is more effective in mesenteric artery smooth muscle from SH rats than from normotensive rats and that vascular dysfunction in SH rat...s is not solely endothelium-derived but involves changes in vascular smooth muscl

Keywords:
Endothelium / Hypertension / Mesenteric artery / MnSOD / Sodium nitroprusside
Source:
Pharmacological Report, 2007, 59, 315-322
Publisher:
  • Springer
Funding / projects:
  • The Role of Redox-Active Substances in the Maintenance of Homeostasis (RS-143034)

ISSN: 1734-1140; 2299-5684

WoS: 000248614800009

Scopus: 2-s2.0-34548131592
[ Google Scholar ]
10
6
Handle
https://hdl.handle.net/21.15107/rcub_cer_3938
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/3938
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Oreščanin, Zorana
AU  - Milovanović, Slobodan R.
AU  - Spasić, Snežana
AU  - Jones, David
AU  - Spasić, Mihajlo
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3938
AB  - The conversion of nitric oxide (NO
) into its congeners nitrosonium (NO ) and nitroxyl (HNO/NO) ions may have important consequences for signal transduction and physiological responses. Manganese-containing superoxide dismutase (MnSOD) may convert
NO into its redox congeners. In our current work, we have examined the mechanism of sodium nitroprusside (SNP)-induced relaxation of arteries, with or without endothelium, from both normotensive and spontaneously hypertensive (SH) rats in the absence and
presence of MnSOD. SNP induced a greater degree of relaxation in normotensive than in SH rats. MnSOD antagonized SNPinduced relaxation and effect was greater in normotensive than hypertensive rats. However, MnSOD even potentiated SNP-induced
relaxation in mesenteric arteries with endothelium from SH rats. Our results indicate that HNO/NO-mediated relaxation is more effective in mesenteric artery smooth muscle from SH rats than from normotensive rats and that vascular dysfunction in SH rats is not
solely endothelium-derived but involves changes in vascular smooth muscl
PB  - Springer
T2  - Pharmacological Report
T1  - Different responses of mesenteric artery from normotensive and spontaneously hypertensive rats to nitric oxide and its redox congeners
VL  - 59
SP  - 315
EP  - 322
UR  - https://hdl.handle.net/21.15107/rcub_cer_3938
ER  - 
@article{
author = "Oreščanin, Zorana and Milovanović, Slobodan R. and Spasić, Snežana and Jones, David and Spasić, Mihajlo",
year = "2007",
abstract = "The conversion of nitric oxide (NO
) into its congeners nitrosonium (NO ) and nitroxyl (HNO/NO) ions may have important consequences for signal transduction and physiological responses. Manganese-containing superoxide dismutase (MnSOD) may convert
NO into its redox congeners. In our current work, we have examined the mechanism of sodium nitroprusside (SNP)-induced relaxation of arteries, with or without endothelium, from both normotensive and spontaneously hypertensive (SH) rats in the absence and
presence of MnSOD. SNP induced a greater degree of relaxation in normotensive than in SH rats. MnSOD antagonized SNPinduced relaxation and effect was greater in normotensive than hypertensive rats. However, MnSOD even potentiated SNP-induced
relaxation in mesenteric arteries with endothelium from SH rats. Our results indicate that HNO/NO-mediated relaxation is more effective in mesenteric artery smooth muscle from SH rats than from normotensive rats and that vascular dysfunction in SH rats is not
solely endothelium-derived but involves changes in vascular smooth muscl",
publisher = "Springer",
journal = "Pharmacological Report",
title = "Different responses of mesenteric artery from normotensive and spontaneously hypertensive rats to nitric oxide and its redox congeners",
volume = "59",
pages = "315-322",
url = "https://hdl.handle.net/21.15107/rcub_cer_3938"
}
Oreščanin, Z., Milovanović, S. R., Spasić, S., Jones, D.,& Spasić, M.. (2007). Different responses of mesenteric artery from normotensive and spontaneously hypertensive rats to nitric oxide and its redox congeners. in Pharmacological Report
Springer., 59, 315-322.
https://hdl.handle.net/21.15107/rcub_cer_3938
Oreščanin Z, Milovanović SR, Spasić S, Jones D, Spasić M. Different responses of mesenteric artery from normotensive and spontaneously hypertensive rats to nitric oxide and its redox congeners. in Pharmacological Report. 2007;59:315-322.
https://hdl.handle.net/21.15107/rcub_cer_3938 .
Oreščanin, Zorana, Milovanović, Slobodan R., Spasić, Snežana, Jones, David, Spasić, Mihajlo, "Different responses of mesenteric artery from normotensive and spontaneously hypertensive rats to nitric oxide and its redox congeners" in Pharmacological Report, 59 (2007):315-322,
https://hdl.handle.net/21.15107/rcub_cer_3938 .

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