New evidence for an  -andrenergic component in the sympathetic centres: centrally mediated decrease in sympathetic tone by L-dopa and its antagonism by piperoxane and yohimbine.
D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D002415:Cats; D003000:Clonidine / Q000494:pharmacology; D004295:Dihydroxyphenylalanine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D004336:Drug Antagonism; D004558:Electric Stimulation; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D008297:Male; D011941:Receptors, Adrenergic / Q000187:drug effects; D013153:Splanchnic Nerves / Q000187:drug effects; D013564:Sympathetic Nervous System / Q000187:drug effects*; D013565:Sympatholytics / Q000494:pharmacology*; D015016:Yohimbine / Q000494:pharmacology*
D011941:Receptors, Adrenergic; D013565:Sympatholytics; D015016:Yohimbine; D004295:Dihydroxyphenylalanine; D003000:Clonidine