Metnods The changes of CGRP levels in the plasma, cerebrospinal fluid, the brain and the aorta of spontaneously hypertensive rats(SHR) and Wistar Kyoto rats(WKY) were measured by radioimmunoassay.

• 方法采用放射免疫分析法测定常压大鼠（WKY）和自发性高血压大鼠（SHR）血浆、脑脊液、脑及主动脉血管中CGRP含量。