Fig. 2
From: Renal sympathetic nerve activity regulates cardiovascular energy expenditure in rats fed high salt
Effects of high salt intake on blood pressure, heart rate and renal sympathetic nerve activity in conscious Sprague-Dawley rats. a Renal sympathetic nerve activity (RSNA), heart rate, and mean arterial pressure over a 12-day period in conscious Sprague-Dawley (SD) rats (n = 3) fed a 0.2% NaCl diet with tap water to drink (NS + tap), a 4% NaCl diet with tap water to drink (HS + tap) or a 4% NaCl diet with saline to drink (HS + saline). b Mean arterial pressure distribution in the same SD rats during each salt intake phase. The data from the dark phase (active period) and the light phase (inactive period) were analyzed separately. c Heart rate distribution in the same SD rats during each salt intake phase. d RSNA distribution in the same SD rats during each salt intake phase. e The relationship between heart rate (bpm) and RSNA (µV s) for all hourly average data (n = 288) in the same SD rats presented in a. All values are expressed as the mean ± SD
