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  • Title: [Pharmacological analysis of the peristalsis block induced by magnesium applied at the serosal and mucosal surfaces of the isolated guinea pig ileum].
    Author: Beleslin D, Samardzić R.
    Journal: C R Seances Soc Biol Fil; 1977; 171(4):750-4. PubMed ID: 145275.
    Abstract:
    Acetylcholine, metacholine, eserine and neostigmine, acting from the serosal surface antagonised the peristaltic block produced by mucosal application of magnesium, as well as when choline esters and anticholinesterases were injected intraluminally and magnesium acted from the serosal side of the guinea-pig isolated ileum. On the other hand, 5-hydroxytryptamine and histamine did not remove the peristaltic block produced by magnesium. It is concluded that cholinoceptive sites within the myenteric plexus which, when stimulated by cholinergic substanced, produce regular peristaltic waves, are accessible from either sides of the guinea-pig isolated ileum.
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