also , when cells were seeded at initial densities ranging from 0.2 to 3.2 x 10 ( 6 ) cells/flask , and exposed for 24 h to 10 ( -7 ) m alpha-msh , only the cultures seeded at low densities ( 0.2 and 0.4 x 10 ( 6 ) cells/flask ) exhibited maximal tyrosinase activity during the 24 h exposure to the melanotropins .
C0002302
alpha-msh
C0026667
melanotropins