forty-eight hours after treatment with reserpine ( 5 mg/kg i.p . 48 h and 3 mg/kg i.p . 24 h prior to the experiment ) catecholamine fluorescence in the rabbit central ear artery was abolished and the neuropeptide y-like immunoreactivity was substantially reduced , suggesting that noradrenaline and neuropeptide y were colocalised in sympathetic nerves .
C0007412
catecholamine
C0028351
noradrenaline