Methods:Radioimmuno-assay was used to measure the levels of plasma ET,cAMP and cGMP in80patients with migraine and30healthy controls.

• 方法:选择80例偏头痛患者,用放免法检测血浆内皮素(ET)、环腺苷酸(cAMP)、环鸟苷酸(cGMP)水平的变化。