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PACAP27 induces migraine-like attacks in migraine patients

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

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INTRODUCTION: Pituitary adenylate cyclase-activating polypeptide (PACAP) is found in two functional isoforms, namely PACAP38 and PACAP27. The migraine-inducing properties of PACAP38 are well studied. However, it is not known whether the lesser-known and under-studied protein isoform, PACAP27, can also induce migraine attacks. Here, we studied the effect of human PACAP27 infusion on induction of migraine in a provocation model.

METHODS: In a crossover study, 20 migraine without aura patients were randomly assigned to receive human PACAP27 (10 picomol/kg/min) or saline (placebo) infusion over 20 min. We recorded the migraine and associated symptoms.

RESULTS: All patients completed the study. PACAP27 provoked migraine-like attacks in 11 patients (55%) and two developed attacks after placebo (10%) (p = 0.022). The headache intensity and duration after PACAP27 was significantly greater compared to placebo (p = 0.003).

CONCLUSION: PACAP27 triggers migraine attacks without aura. These novel data strengthen the role of PACAP and its receptors in migraine pathogenesis.

OriginalsprogEngelsk
TidsskriftCephalalgia : an international journal of headache
Vol/bind40
Udgave nummer1
Sider (fra-til)57-67
Antal sider11
ISSN0333-1024
DOI
StatusUdgivet - 2020

ID: 58932671