Sustained gonadotropin-releasing hormone stimulation mobilizes the cAMP/PKA pathway to induce nitric oxide synthase type 1 expression in rat pituitary cells in vitro and in vivo at proestrus - Garrel, G; Simon, V; Thieulant, M L; Cayla, X; Garcia, A; Counis, R; Cohen-Tannoudji, J (Biol Reprod, 2010)