Clinical exams were made on two antagonistic active peptides. plasma ET and CGRP in 100 cases of CDH of different types of zheng were examined

with 30 cases of normal person as control. In predominant asthenic and predominant sthenic types of CHD. ET was increased （P<0. 01 and P<0. 05）. with the latter group higher than the former one （F<0. 01）. but the level of CGRP made no difference with that of the normal control group （P < 0. 05）.. In different types of CHD in the sthenic group; the ET level was markedly increased in the type of stasis - blocking of heart - blood than that in the blockade of turbid phlegm type （P<0. 01）. but made no difference with the type of blockade of stagnant Yin -cold type （P> 0. 05）. There was no difference of ET between the 2 types of blockade of Yin - cold blockade of turbid phlegm （P>0. 05）. Regarding CGRP. there were no differences among all groups （P > 0. 05）. For the asthenic group the levels of ET and CGRP were not markedly different （P>0. 05）.