ABSTRACT
<p><b>OBJECTIVE</b>To screen the active component of Wuzhuyutang (WZYT, Evodiae prescription) and investigate the regulatory effects of the components in WZYT on the TPH2 promoter, and to explore the possible molecular mechanism of WZYT on migraine.</p><p><b>METHOD</b>By transfecting a TPH2 promoter regulating Red Fluorescent Protein expressing plasmid into PC12 cell, the global fluorescence intensities and calculations of fluorescent cells after components treatment were statistically evaluated.</p><p><b>RESULT</b>Different regulatory effects of different components in WZYT with different concentrations on TPH2 promoter were observed.</p><p><b>CONCLUSION</b>TPH2 promoter drove Red Fluorescent Protein expressing cell line can be used as system screening components targeting TPH2 promoter activity. The possible mechanism of WZYT on migraine may due to its stimulating effects on TPH2 promoter, and promote the synthesis and release of 5-HT in cerebral.</p>