[The effect of vasotocin and mesotocin on the suprarenal gland of the frog Rana temporaria in vivo and in vitro].

Biochemical and morphometric analyses have been made of the effects of nonapeptide neurohormones, vasotocin and mesotocin, on the chromaffin tissue of the adrenal gland of the frog, both in vivo and in vitro experiments. It was shown that vasotocin exerts stimulating effect on the suprarenal gland whereas mesotocin inhibits the latter. In vitro experiments revealed that adrenalin may abolish the effect of nonapeptides on the suprarenal gland.