[Myogenic reactions of the rat isolated mesenteric artery: effect of acidosis and the primary vessel tone].
Stretch of the rat mesenteric artery ring pretreated with noradrenaline evoked a myogenic response consisting of the fast and slow phases which were maximal at about 3.5 and 45.1 s after the stretch, resp. Hypercapnic acidosis inhibited both phases of the response. Role of Ca2+ in origin of the two phases is discussed.
Iartsev
V N
VN
I. P. Pavlov Institute of Physiology of the Russian Acad. Sci., 199034, St. Petersburg, Nab. Makarova, 6, Russia.
Karachentseva
O V
OV
Dvoretskiĭ
D P
DP
D000818:Animals; D002245:Carbon Dioxide / Q000494:pharmacology*; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D008297:Male; D017538:Mesenteric Artery, Superior / Q000187:drug effects / Q000502:physiology*; D009129:Muscle Tonus; D009131:Muscle, Smooth, Vascular / Q000187:drug effects / Q000502:physiology*; D009638:Norepinephrine / Q000494:pharmacology; D010477:Perfusion; D051381:Rats; D017208:Rats, Wistar; D013314:Stress, Mechanical; D014661:Vasoconstriction / Q000187:drug effects / Q000502:physiology*; D014662:Vasoconstrictor Agents / Q000494:pharmacology
D014662:Vasoconstrictor Agents; D002245:Carbon Dioxide; D009638:Norepinephrine