Fig. 3.

Effects of IH on sympathetic nerve response to arterial baroreflex activation. A: examples of splanchnic sympathetic nerve activity (SNA) response to phenylephrine-(PE; 3 μg/kg body wt; I.V. at arrows)-induced increase in blood pressure in a control (left) and IH-treated rat (right). B: average data (means ± SEM) of changes in SNA baroreflex sensitivity. Values are means ± SE from control (n = 6) and IH (n = 6) rats. ABP, arterial blood pressure; SNA, splanchnic nerve activity; Int. SNA, integrated splanchnic nerve activity. *Significant difference compared with control (P < 0.05).