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. Author manuscript; available in PMC: 2011 Apr 19.
Published in final edited form as: Auton Neurosci. 2009 Nov 3;154(1-2):14–19. doi: 10.1016/j.autneu.2009.09.023

Figure 1.

Figure 1

Raw recordings showing the cytisine-induced sympathetic and parasympathetic responses. A. Cytisine induced a quick decrease in heart rate, followed by an increase in heart rate and blood pressure. Pre-administration of atropine blocked the bradycardic response with no effect on pressor response. B. Pre-administration of prazosine eliminated the cytisine-induced pressor response. C. Pre-administration of ganglionic blocker hexamethonium largely blocked all components of the responses induced by cytisine. The vertical dotted lines in the recording traces showed the relative positions of injections.