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Mean arterial blood pressure (A) and magnitude of the fall in blood pressure (percent baseline; B) in rats infused with SB-269970 or vehicle before pump implantation with 5-HT (25 μg·kg−1·min−1). Measures of blood pressure were done 24 h after pump implantation and then again after SB-269970 removal. Points/bars represent means ± SE for the number of animals in parentheses. *Statistical differences between the two bracketed bars.
