the levels of igf in the serum were not measurably increased after s.c. administration of met-igf-i , whereas after i.v . infusion , significantly raised levels were obtained at the higher dose rates ( 3.0 +/- 0.3 and 2.8 +/- 0.1 units/ml ) .
C0037657
igf
C0021665
met-igf-i