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Figure 2 R-R interval (top) and mean arterial blood pressure (bottom) responses to carotid baroreceptor stimulation by graded neck suction in resting supine individuals before (solid lines, circles) and after (dotted lines, triangles) 4 months of dietary polyunsaturated fatty acid (PUFA) supplementation (right) or placebo (left). Mean values ± SEM of the responses to –20 mm Hg and –40 mm Hg neck suction and the derived regression lines relating the reflex response to the stimulus are shown. Slopes and correlation coefficients (r) are indicated for each regression line. **p < 0.01 versus before supplementation.
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