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Presence of alpha-Adrenoceptors in Human Temporal Arteries. Comparison Between Migraine Patients and Controls by L. Edvinsson; P. Tfelt-Hansen; T. Skärby; F. Gjerris; J. Olesen is a Medicine article available to read on EtoBox.

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Alpha-adrenergic mechanisms have frequently been implied in migraine pathophysiology. We have examined the noradrenaline reactivity of isolated human temporal arteries removed from six migraine sufferers (not during attack) and from six patients without migraine operated for intracranial disorders. Noradrenaline constricted these vessels in a concentration-dependent manner, the response being altered by phentolamine 10-8 M to 10-6 M. There was no statistically significant difference between migraine patients and controls with respect to maximal contractile force (Emas) or pD2 (negative logarithm of the concentration eliciting half maximal force). The pA2 value for phentolamine was 8.3 in vessels from controls and 7.6 in arteries from migraine sufferers. The small difference between migraine patients and controls was not statistically significant. We obtained clear evidence of alpha-adrenergic receptors in human temporal arteries but their sensitivity was independent of the migraine disorder.

Who reads Presence of alpha-Adrenoceptors in Human Temporal Arteries. Comparison Between Migraine Patients and Controls?

Author

L. Edvinsson; P. Tfelt-Hansen; T. Skärby; F. Gjerris; J. Olesen

Publisher

John Wiley and Sons; SAGE Publications; Wiley (ISSN 0333-1024)

Published

1983

Language

EN

Field

Medicine (Health Sciences)