Figure 5.

Effects of dimethyl sulfoxide (DMSO) on responses to intravenous tempol. A: Representative tracing showing the effect of intravenous DMSO on tempol-induced inhibition of HR (bpm), AP (mmHg) and integrated RSNA (mV) in a baroreceptor denervated rat. B: Grouped data showing the responses to intravenous tempol following pretreatment with intravenous DMSO. Arrow in B indicates the time of tempol injection. Data are expressed as means ± SE. * P<0.05 compared with baseline; † P<0.05 compared with i.v. tempol alone.