Vip Increases in Nasal Blood During Stimulation of the Vidian Nerve

R. Uddman Department of Otolaryngology, University of Lund, Malmo General Hospital, Malmii, Sweden

L. Malm Department of Otolaryngology, University of Lund, Malmo General Hospital, Malmii, Sweden

J. Fahrenkrug Departments of Clinical Chemistry, Glostrup and Bispehjerg Hospitals, Copenhagen, Denmark

F. Sundler Department of Histology, University of Lund, Lund, Sweden

Abstract

In chronically sympathectomized cats Vidian nerve stimulation evoked vasodilatation concomitant with an increase of VIP concentration in venous plasma effluent from the nasal mucosa. the VIP increase and the vasodilatation was not affected by atropine administration, but abolished by hexamethonium. It is suggested that neuronal VIP may be the mediator of the atropine-resistant vasodilatation.

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Vip Increases in Nasal Blood During Stimulation of the Vidian Nerve

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Vip Increases in Nasal Blood During Stimulation of the Vidian Nerve

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