[Stress-induced inhibition of the ileal, caecal, and colonic contractile activity in rabbits].
In alert rabbits, immobilisation stress decreased the spike burst rate and amplitude in ileum, caecum, and colon for 20 min. Following beta-adrenoceptor blockade, the contractile activity suppression was aggravated. The stress seems to lead to suppression of the ileal, caecal, and colonic contractile activity for up to 40 min which is unrelated to adrenergic inhibition of the smooth muscle activity mediated by beta-adrenoceptors.
Ovsiannikov
V I
VI
Institute of Experimental Medicine, Russian Acad. Med. Sci., St. Petersburg, 197376, Acad. Pavlov St., 12, Russia.
Berezina
T P
TP
D000200:Action Potentials; D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000818:Animals; D002432:Cecum / Q000502:physiology*; D003106:Colon / Q000502:physiology*; D007082:Ileum / Q000502:physiology*; D008297:Male; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000502:physiology; D011817:Rabbits; D012149:Restraint, Physical; D013315:Stress, Psychological / Q000503:physiopathology*
D000319:Adrenergic beta-Antagonists
Stressornoe tormozhenie sokratitel'noĭ aktivnosti podvzdoshnoĭ, slepoĭ i tolstoĭ kishki u krolikov.