Adrenergic, Cholinergic and Peptidergic Nerve Fibres in Dura Mater Involvement in Headache?

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Abstract
Nerve fibres containing noradrenaline, acetylcholinesterase, vasoactive intestinal polypeptide and substance P were demonstrated in the dura mater of guinea-pigs using histochemical and immunohistochemical methods. These fibres accompanied blood vessels of all size, indicating a vasomotor role. In addition, some nerve fibres were observed without any obvious relation to the blood vessels. The rich supply of nerve fibres to the various parts of the dura mater may possibly be of importance in the pathogenesis of some types of headache.