Abstract
The investigation on the amounts of adrenaline (A) and noradrenaline (N) in the suprarenal gland and in the blood after administration of mecholyl, acetylcholine, nicotine and the splanchnic stimulation was performed. Rat's blood-pressure and rabbit's intestine were used to estimate the contents of A and N in the isolated rabbit's suprarenal gland, the Gaddum's formula being applied for calculation. The proportions of A and N liberated from the suprarenal gland were determined by the method. of Bülbring and Burn, using a denervated cat's nictitating membranes. Under the conditions mentioned above an increase of N and a decrease of A was observed. From these results it may be considered that N plays an important part as an adrenergic transmitter.
