Abstract

The output of amylase into saliva secreted after injection of methacholine or substance P was increased after parasympathetic denervation, but the salivary concentration of amylase was unchanged. The increased output corresponded to the increased flow. Isoprenaline injected during the methacholineinduced secretion raised the output, more being secreted from the denervated than from the contralateral gland. Vasoactive intestinal peptide, given while substance P caused salivation, also increased the amylase output, but equally from the two glands.

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