Multiple mechanisms for the effects of capsaicin, bradykinin and nicotine on CGRP release from tracheal afferent nerves: role of prostaglandins, sympathetic nerves and mast cells.

Abstract

Application of capsaicin (CAP), bradykinin (BK) or nicotine (NIC) to intraluminally perfused rat tracheas induced an increase in calcitonin gene-related peptide (CGRP) levels in the perfusates. Depletion of sensory afferent CGRP with systemic CAP pretreatment resulted in a significant reduction of CGRP release evoked by CAP, BK or NIC. Chemical destruction… (More)

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