from these data , it is concluded that ( 1 ) bpth- ( 1-34 ) possesses both positive chronotropic and inotropic effects on the frog atrium , ( 2 ) the cardiac actions of bpth- ( 1-34 ) may be closely related with its hypotensive property , ( 3 ) methionines are not necessary for the cardiac actions , and ( 4 ) arginines are important for the cardiac-stimulating effects of bpth .
C0018792
atrium
C0018787
cardiac