Fig. 3

The expression of Gαs/Gαi protein and endogenous cAMP level is regulated by db-cAMP. a Gαs, Gαi2, Gαi3 and cAMP expression in rat lung tissue (Western blot, EIA); Data are means ± SEM; n = 6 independent experiments; b Gαs, Gαi2, Gαi3 and cAMP expression in fibroblasts (Western blot, EIA). Data are means ± SEM; n = 6 independent experiments