Fig. 3
From: Serotonergic system in hypoxic ventilatory response in unilateral rat model of Parkinson’s disease
Effects of i.p. injection of DOI and ketanserin on tidal volume (a), frequency of breathing (b) and minute ventilation (c) in normoxic condition in the intact rats and two weeks after lesion with 6-OHDA. All values are means ± SEM. *P < 0.05 versus the respective control value; ***P < 0.001, versus the respective control and post-ketanserin values. # P < 0.05, ## P < 0.01, versus the corresponding value before and after 6-OHDA treatment (n = 9)