in the present study it is demonstrated that platelet-activating factor ( paf ) was produced by chick retinas , upon stimulation with neurotransmitters such as acetylcholine ( ach ) , dopamine , or with calcium ionophore a23187 , but not upon stimulation with gamma-amino-n-butyric acid , l-glycine , l-glutamate , epinephrine , or histamine .
C0002520
amino
C0017890
glycine