Headache
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To evaluate in a headache clinic population the relationship of childhood maltreatment on the prevalence of pain conditions comorbid with migraine. ⋯ The association of childhood maltreatment and pain was stronger in those reporting multiple pain conditions and multiple maltreatment types. This finding suggests that in migraineurs childhood maltreatment may be a risk factor for development of comorbid pain disorders.
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Alcohol is a well-known trigger factor for cluster headache attacks during the active phases of the disease. The alcohol dehydrogenase (ADH) pathway, which converts alcohol to the toxic substance acetaldehyde, is responsible for most of the alcohol breakdown in the liver. Humans have 7 ADH genes, tightly clustered on chromosome 4q21-q25, that encode different ADH isoforms. The ADH4 gene encodes the class II ADH4 pi subunit, which contributes, in addition to alcohol, to the metabolization of a wide variety of substrates, including retinol, other aliphatic alcohols, hydroxysteroids, and biogenic amines. The purpose of this study was to investigate the association of genetic variants within the ADH4 gene with cluster headache susceptibility and phenotype. ⋯ Our data suggest that cluster headache is associated with the ADH4 gene or a linked locus. Additional studies are warranted to elucidate the role of this gene in the etiopathogenesis of the disease.
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This study assessed cardiovascular reactivity to mental stress and cold pressure test in migraineurs and controls. It compared the cardiovascular reactivity between patients with migraine with aura and patients with migraine without aura. ⋯ There was a significantly different pattern of cardiovascular reactivity between migraineurs and controls with mental stress but not with cold pressure test. Distinct central nervous system structures are involved in these 2 types of stress. A distinct pattern of activation of the prefrontal cortex-periaqueductal gray matter circuit in migraine may explain a singular autonomic reactivity to mental stress in this disease.