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conclude that in certain doses BP can produce positive anxiolytic neurotropic effects that are probably related to the previously discovered stress-mitigating properties of this penicillin.Various doses of leu-and met-enkephalins injected into the portal vein of rats inhibited predominantly the secretory function of the liver. In most instances, the changes in bile secretion were observed to coincide in direction, time of occurrence, and magnitude with those in the secretion of bile acids.

No abstract