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  • Title: [Acetylcholine potentiation of the serotonin-induced contractile reaction of the cat pyloric sphincter].
    Author: Ses' TP, Ovsiannikov VI.
    Journal: Fiziol Zh SSSR Im I M Sechenova; 1983 Oct; 69(10):1333-7. PubMed ID: 6641984.
    Abstract:
    Isolated feline gastroduodenal junction was incubated in oxygenated Krebs solution maintained at 37 degrees C. Three types of spontaneous contractile activity were observed in the experiments. Acetylcholine and serotonin, 1.10(-11)-1.10(-5) mol/l, elicited contractile response of the pyloric sphincter consisting of tonic and rhythmic components. Acetylcholine, 1.10(-10)-1.10(-11) nmol/l, while being unable to induce contractile activity of the preparation, potentiated the contractile response of the pyloric sphincter elicited by serotonin.
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