Cortical spreading depression reduces dural blood flow--a possible mechanism for migraine pain? 1994

G A Lambert, and J Michalicek
Institute of Neurological Sciences, Prince Henry Hospital, Australia.

These experiments were designed to investigate a possible mechanism linking the phenomenon of cortical spreading depression with activation of the trigeminal sensory system in migraine. Blood flow in the cortex and middle meningeal artery was measured in cats before and during propagation of a wave of cortical spreading depression, initiated by cortical pin-prick. This caused a transient propagated increase in cortical blood flow. Cortical spreading depression was accompanied by a decrease in blood flow in the middle meningeal artery, sometimes to very low levels. The results suggest that the pain of migraine could arise from dural ischemia induced by cortical spreading depression.

UI MeSH Term Description Entries
D008576 Meningeal Arteries Arteries which supply the dura mater. Arteries, Meningeal,Artery, Meningeal,Meningeal Artery
D008881 Migraine Disorders A class of disabling primary headache disorders, characterized by recurrent unilateral pulsatile headaches. The two major subtypes are common migraine (without aura) and classic migraine (with aura or neurological symptoms). (International Classification of Headache Disorders, 2nd ed. Cephalalgia 2004: suppl 1) Acute Confusional Migraine,Headache, Migraine,Status Migrainosus,Abdominal Migraine,Cervical Migraine Syndrome,Hemicrania Migraine,Migraine,Migraine Headache,Migraine Variant,Sick Headache,Abdominal Migraines,Acute Confusional Migraines,Cervical Migraine Syndromes,Disorder, Migraine,Disorders, Migraine,Headache, Sick,Headaches, Migraine,Headaches, Sick,Hemicrania Migraines,Migraine Disorder,Migraine Headaches,Migraine Syndrome, Cervical,Migraine Syndromes, Cervical,Migraine Variants,Migraine, Abdominal,Migraine, Acute Confusional,Migraine, Hemicrania,Migraines,Migraines, Abdominal,Migraines, Acute Confusional,Migraines, Hemicrania,Sick Headaches,Variant, Migraine,Variants, Migraine
D002415 Cats The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801) Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D002560 Cerebrovascular Circulation The circulation of blood through the BLOOD VESSELS of the BRAIN. Brain Blood Flow,Regional Cerebral Blood Flow,Cerebral Blood Flow,Cerebral Circulation,Cerebral Perfusion Pressure,Circulation, Cerebrovascular,Blood Flow, Brain,Blood Flow, Cerebral,Brain Blood Flows,Cerebral Blood Flows,Cerebral Circulations,Cerebral Perfusion Pressures,Circulation, Cerebral,Flow, Brain Blood,Flow, Cerebral Blood,Perfusion Pressure, Cerebral,Pressure, Cerebral Perfusion
D004388 Dura Mater The outermost of the three MENINGES, a fibrous membrane of connective tissue that covers the brain and the spinal cord. Falx Cerebelli,Falx Cerebri,Pachymeninx,Tentorium Cerebelli
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013181 Cortical Spreading Depression The decrease in neuronal activity (related to a decrease in metabolic demand) extending from the site of cortical stimulation. It is believed to be responsible for the decrease in cerebral blood flow that accompanies the aura of MIGRAINE WITH AURA. (Campbell's Psychiatric Dictionary, 8th ed.) Cortical Depression, Spreading,Spreading Cortical Depression,Spreading Depression of Leao,Cortical Depressions, Spreading,Cortical Spreading Depressions,Depression, Cortical Spreading,Depression, Spreading Cortical,Depressions, Cortical Spreading,Depressions, Spreading Cortical,Leao Spreading Depression,Spreading Cortical Depressions,Spreading Depression, Cortical,Spreading Depressions, Cortical

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