Neurology
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Comparative Study
Interictal increase of CGRP levels in peripheral blood as a biomarker for chronic migraine.
To determine calcitonin gene-related peptide (CGRP) levels outside migraine attacks in peripheral blood as a potential biomarker for chronic migraine (CM). ⋯ Increased CGRP level measured in peripheral blood outside migraine attacks and in the absence of symptomatic medication could be a biomarker helping in the diagnosis of CM.