6533b7d7fe1ef96bd12684da

RESEARCH PRODUCT

Increase by ?-adrenolytic drugs of acetylcholine release evoked by field stimulation of the guinea-pig ileum

Ignaz WesslerHeinz Kilbinger

subject

Malemedicine.medical_specialtyGuinea PigsAlpha (ethology)IleumEndogenyIn Vitro TechniquesPhentolamineIleumInternal medicinemedicineAnimalsTolazolineAdrenergic alpha-AntagonistsMyenteric plexusPharmacologyChemistryMuscle SmoothGeneral MedicineAcetylcholineElectric StimulationYohimbinemedicine.anatomical_structureEndocrinologyFemaleAcetylcholinemedicine.drug

description

The release of acetylcholine evoked by field stimulation of the guinea-pig ileum (3 Hz) is increased by yohimbine and tolazoline but not affected by phentolamine. It is proposed that yohimbine and tolazoline by blocking alpha-adrenoceptors of the cholinergic nerves abolish the inhibition caused by endogenous noradrenaline, and thus facilitate the output of acetylcholine.

https://doi.org/10.1007/bf00504758