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    Insulin resistance and high sensitivity C-reactive protein in migraine
    (Cambridge Univ Press, 2008) Guldiken, Baburhan; Guldiken, Sihel; Demir, Muzaffer; Turgut, Nilda; Kabayel, Levent; Ozkan, Hulya; Ozcelik, Emine
    Background: A relationship between migraine and vascular disorders such as hypertension, stroke, and coronary ischemia has been recently reported. Insulin resistance and endothelial dysfunction. which commonly underlies these disorders, have not been widely investigated in migraine patients. In this study. we aimed to investigate the existence of insulin resistance and endothelial dysfunction, and their relationship to vascular risk factors in patients with migraine. Methods: We evaluated insulin resistance and high-sensitivity C-reactive protein (hs-CRP), a marker of endothelial dysfunction, in 60 migraine patients and 25 healthy control subjects. Multiple analysis of covariance test was used to adjust for known confounding factors that can influence insulin metabolism and endothelial Function, Such as obesity, blood pressure. and lipid parameters. Results: Insulin resistance, as measured homeostasis model assessment (HOMA)-R levels, was significantly higher in the migraine group (p < 0.001). After adjustment for confounding variables. the relationship between migraine and the HOMA-R levels remained significant (p < 0.001). The hs-CRP levels did not differ between the migraine and control groups. Conclusions: Our data show that insulin resistance is present in migraine patients. Endothelial dysfunction is not found during the headache-free period. Further studies are needed to explain the role of insulin resistance in migraine pathogenesis.