moreover , when srs-a , ltc4 and ltd4 were incubated with 0.02 mg/ml of gamma-glutamyltranspeptidase ( gamma-gtp ) ph 8.0 buffered solution at 37 degrees c for 30 min , the activities of srs-a and ltd4 were slightly decreased , but those of srs and ltc4 were obviously potentiated .
C0038091
of srs-a
C0023542
ltc4