(HealthDay News) -- In women, hormones increase the frequency of an inherited form of severe migraine accompanied by visual disturbances called auras, according to a Massachusetts General Hospital study.
Like other types of migraine, familial hemiplegic migraine affects women more than men. Most cases of familial hemiplegic migraine are caused by mutations in the CACNA1A gene. However, it hasn't been clear whether these mutations lead to spreading depression -- the event in the brain that suppresses nerve cell activity and has been linked to non-genetic forms of migraine with aura, according to background information in the study. Read more...
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