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  • Title: Peptidergic control of the autonomic regulation system in the orofacial region.
    Author: Lundberg JM.
    Journal: Proc Finn Dent Soc; 1989; 85(4-5):239-50. PubMed ID: 2699758.
    Abstract:
    Many biologically active peptides are localized in autonomic nerves of the orofacial region. Substance P and calcitonin gene-related peptide (CGRP) are released from capsaicin-sensitive afferents and are candidates as mediators of plasma protein extravasation and antidromic vasodilatation. Vasoactive intestinal polypeptide (VIP) and peptide with N- and C-terminal histidine (PHI) are released together with acetylcholine from parasympathetic nerves. VIP and PHI may be involved in both non-cholinergic vasodilatation and enhancement of cholinergic exocrine secretion (especially protein content). Neuropeptide Y (NPY) is coreleased with noradrenaline from perivascular sympathetic nerves. NPY exerts prejunctional inhibitory actions on noradrenaline release and may also mediate non-adrenergic sympathetic vasoconstriction. A variety of both anticholinergic and sympathoactive drugs influence not only the classical transmitters acetylcholine and noradrenaline but also the respective coexisting peptides VIP and NPY.
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