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  • Title: Effects of L-NG-nitro arginine on cholinergic transmission in the gastric muscle of the rabbit.
    Author: Baccari MC, Bertini M, Calamai F.
    Journal: Neuroreport; 1993 Sep; 4(9):1102-4. PubMed ID: 8106007.
    Abstract:
    In the circular muscle of the rabbit gastric corpus, the nitric oxide-synthesis inhibitor L-NG-nitro arginine (L-NOARG), enhanced the neurally-induced cholinergic responses evoked by electrical field stimulation (EFS) and ganglionic stimulating agents (nicotine, dimethylphenyl piperazinium iodide). The muscular contractions caused by acetylcholine (Ach) and methacholine were not influenced by the nitric oxide-synthesis inhibitor. The nitric oxide-releasing compound sodium nitroprusside (SNP) did not affect the Ach-induced muscular responses. Our results suggest that L-NOARG enhances gastric cholinergic responses by removing an inhibitory influence exerted at the prejunctional level in the nerve-muscle pathway.
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