Mechanisms of contractile action of acetylcholine on hepatic veins
Ianchuk PI, Prykhod'ko TP, Pasichnichenko OM, Tieriekhov AA, Tsybenko VO
Taras Shevchenko National University, Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz57.01.021
Abstract
In acute experiments on anesthetized rats, acetylcholine (Ach) constricts hepatic venous vessels, causing blood mobilization from the liver, and dilates the sphincters of hepatic veins at the exit from this organ, contributing to the intensification of the outflow of blood deposited in the liver. Vasoconstrictor reactions of capacitive vessels of the liver to Ach are realized through M-cholinoreceptors on endotheliocytes with further involvement of messenger, possibly noradrenaline, which activates a-adrenoreceptors on smooth muscle cells (SMC) of capasitive vessels. Dilation of Hv sphincters is carried out due to Ach-induced release of messenger in the vessel wall, probably adrenaline, which in turn activates b-adrenoreceptors on SMC of the Hv. It is possible, that in such reaction partially involved NO.
Keywords:
acetylcholine, hepatic veins, contractile reactions,M-cholinoreceptors, ?- and ?-adrenoreceptors.
References
- Tsybenko VA, Yanchuk PI, Pasichnichenko OM, Komarenko VI Investigation of the vasoconstrictor effect of acetylcholine in venous vessels of the liver . Bul. experiment. biology and medicine. 2006. 143, N 3. P.258-261.
- Tsybenko VA, Ianchuk PI, Simonenko PN. [Use of impedance plethysmography for studying the liver depositing function in an acute experiment]. . Fiziol Zh. 1984 Nov-Dec;30(6):756-758.
- Yanchuk PI, Dubilei TA, Tsibenko VA Effect of catecholamines on blood circulation in the liver . Biol. science. 1990. N 10. P.97-104.
- Ianchuk PI, Pasichnichenko OM, Komarenko VI, Prykhod'ko TP, Tsybenko VO. Elucidation of the mechanisms of acetylcholine constrictor action on the portal vein and its intrahepatic branches.. Fiziol Zh. 2006;52(5):28-33.
- Aharinejad S., Nourani M., Egerbasher E.K., Larson A., Miksovsky P.B., Firbas R.S., McCuskey S.C., Marcs Jr. Sphincters of canine hepatic sublobular veins respond to endothelin-1 and 3 . J. Anatomy and Embryol. 2004. 196. P.299-309.
CrossRef
PubMed
- Holroyde M.C., Eyre P. Reactivity of isolated bovine mesenteric and hepatic veins to vasoactive agents and specific antigen . Eur. J. Pharmacol. 1975. 30. P.36-42.
CrossRef
- Lautt W.W. The 1995 Ciba-Geigy Award Lecture. Intrinsic regulation of hepatic blood flow . Can. J. Physiol. and Pharmacol. 1996. 74, N 3. P.223-233.
CrossRef
PubMed
- Lautt W.W., Macedo M.P. Nitric oxide and the hepatic circulation . Nitric oxide and the regulation of the peripheral circulation. 2000. P.243-258.
CrossRef
- McCuskey R.S. Morphologycal mechanisms for regulating blood flow through hepatic sinusoids . Liver. 2000. 20. P.13-17.
CrossRef
PubMed
- Rothe C.F., Maass-Moreno R. Hepatic venular resistance responses to norepinephrine, isoproterenol, adenosine, histamine and acetylcholine in rabbits . Amer. J. Physiol. 1998. 247. P.H777-H785. 11. Shibamoto T., Narushima M., Ling Y.O., Shimo T., Tsuchida H., Kurata Y. Different hepatic vascular response to noradrenaline and histsmine between uinea pig and rats . Acta. Physiol. Scand. 2004. 180. P.255-263.
CrossRef
PubMed
- Tchirikov M., Hubbard G.B., Hobe J., Nathanielsz P. W. Strictural evidence for mechanisms to redistribute hepatic and ductus venous blood flows in nonhuman primate fetuses . Amer. J. Obstet. 2005. 192. P.1146-1152.
CrossRef
PubMed
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