TY - JOUR

T1 - Change in brain network connectivity during PACAP38-induced migraine attacks

T2 - A resting-state functional MRI study

AU - Amin, Faisal Mohammad

AU - Hougaard, Anders

AU - Magon, Stefano

AU - Asghar, Mohammad Sohail

AU - Ahmad, Nur Nabil

AU - Rostrup, Egill

AU - Sprenger, Till

AU - Ashina, Messoud

N1 - © 2015 American Academy of Neurology.

PY - 2016/1/12

Y1 - 2016/1/12

N2 - OBJECTIVE: To investigate resting-state functional connectivity in the salience network (SN), the sensorimotor network (SMN), and the default mode network (DMN) during migraine attacks induced by pituitary adenylate cyclase-activating polypeptide-38 (PACAP38).METHODS: In a double-blind, randomized study, 24 female migraine patients without aura received IV PACAP38 or vasoactive intestinal polypeptide (VIP) over 20 minutes. Both peptides are closely related and cause vasodilation, but only PACAP38 induces migraine attacks. VIP was therefore used as active placebo. Resting-state functional MRI was recorded before and during PACAP38-induced migraine attacks and before and after VIP infusion. We analyzed data by Statistical Parametric Mapping 8 and the Resting-State fMRI Data Analysis Toolkit for Matlab in a seed-based fashion.RESULTS: PACAP38 (n = 16) induced migraine attacks and increased connectivity with the bilateral opercular part of the inferior frontal gyrus in the SN. In SMN, there was increased connectivity with the right premotor cortex and decreased connectivity with the left visual cortex. Several areas showed increased (left primary auditory, secondary somatosensory, premotor, and visual cortices) and decreased (right cerebellum and left frontal lobe) connectivity with DMN. We found no resting-state network changes after VIP (n = 15).CONCLUSIONS: PACAP38-induced migraine attack is associated with altered connectivity of several large-scale functional networks of the brain.

AB - OBJECTIVE: To investigate resting-state functional connectivity in the salience network (SN), the sensorimotor network (SMN), and the default mode network (DMN) during migraine attacks induced by pituitary adenylate cyclase-activating polypeptide-38 (PACAP38).METHODS: In a double-blind, randomized study, 24 female migraine patients without aura received IV PACAP38 or vasoactive intestinal polypeptide (VIP) over 20 minutes. Both peptides are closely related and cause vasodilation, but only PACAP38 induces migraine attacks. VIP was therefore used as active placebo. Resting-state functional MRI was recorded before and during PACAP38-induced migraine attacks and before and after VIP infusion. We analyzed data by Statistical Parametric Mapping 8 and the Resting-State fMRI Data Analysis Toolkit for Matlab in a seed-based fashion.RESULTS: PACAP38 (n = 16) induced migraine attacks and increased connectivity with the bilateral opercular part of the inferior frontal gyrus in the SN. In SMN, there was increased connectivity with the right premotor cortex and decreased connectivity with the left visual cortex. Several areas showed increased (left primary auditory, secondary somatosensory, premotor, and visual cortices) and decreased (right cerebellum and left frontal lobe) connectivity with DMN. We found no resting-state network changes after VIP (n = 15).CONCLUSIONS: PACAP38-induced migraine attack is associated with altered connectivity of several large-scale functional networks of the brain.

KW - Adult

KW - Brain

KW - Brain Mapping

KW - Double-Blind Method

KW - Female

KW - Humans

KW - Magnetic Resonance Imaging

KW - Migraine Disorders

KW - Nerve Net

KW - Neurotransmitter Agents

KW - Pituitary Adenylate Cyclase-Activating Polypeptide

KW - Young Adult

KW - Journal Article

KW - Randomized Controlled Trial

KW - Research Support, Non-U.S. Gov't

U2 - 10.1212/WNL.0000000000002261

DO - 10.1212/WNL.0000000000002261

M3 - Journal article

C2 - 26674334

VL - 86

SP - 180

EP - 187

JO - Neurology

JF - Neurology

SN - 0028-3878

IS - 2

ER -