[Effect of various types of vagotomy on gastric secretion of histamine in dogs].

The chronic experiments on dogs with fundal fistulas have revealed that the partial stomach denervation (selective proximal, selective distal and subcardial vagotomies) decreases the gastric secretory responses caused by submaximal and maximal doses of histamine. Selective and extragastral vagotomies do not change the histamine gastric secretion in dogs, stimulated by the maximal histamine dose.

[Preganglionic parasympathetic innervation of the intact and partially denervated rat stomach].

The preganglionic parasympathetic innervation of normal and vagotomized rat stomach have been investigated by the horseradish peroxidase (HRP) technique. After the HRP injection into the antrum and fundus muscles the labelled cells were revealed in nuclei dorsalis nervi vagi bilaterally, but preferentially in the left nucleus. The most numerous labelled cells were observed after injection into the region of the curvatura minor.

[The species characteristics of the beta-adrenergic regulation of gastric secretion in man and dog].

In chronic experiment on dogs it has been established that the subcutaneous injection of equimolar doses of izadrine (nonselective beta-adrenergic agonist), alupent (moderately selective beta 2-adrenergic agonist) and salbutamol (predominantly beta 2-adrenergic agonist) suppresses the pentagastric secretion approximately in the same degree. The blockade of beta-adrenoreceptors by the anapriline intensifies the gastric secretion stimulated by pentagastrin. All investigated adrenoactive agents didn't effect the dogs' histamine gastric secretion.

[The effect of histamine H1 receptors on the secretory function and blood flow in the gastric mucosa].

In chronic experiments on dogs with the gastric fistulas it was shown that H1-histamine blockers (suprastin, peritol, pipolphen) fail to enhance histamine secretion and a selective H1-agonist IEM-813 fails to suppress it. It was also found that the ability of pipolphen to suppress the gastric secretion was due to its cholinolytic properties.