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Fig. 1 | Biological Research

Fig. 1

From: Effects of enriched-potassium diet on cardiorespiratory outcomes in experimental non-ischemic chronic heart failure

Fig. 1

Dietary K+ supplementation decreases arrhythmia incidence, cardiac sympathetic tone and improves spontaneous baroreflex in CHF rats. A Representative recording of heart rate (HR) tachograms obtained from one Sham rat, one CHF rat and one CHF+K+ rat. Arrowheads indicate arrhythmic events. Note that K+ supplemented diet reduces arrhythmic events in CHF. B Summary data showing arrhythmia index (events/hour). C Heart rate responses (ΔHR) after sympathetic blockade with propranolol (1 mg/Kg). D ΔHR after parasympathetic blockade with atropine (1 mg/Kg). E Baroreflex sensitivity (BRS) during spontaneous changes in HR and mean arterial pressure (MAP). Each dashed line represents the tachycardic or bradycardic slope. *P < 0.05 vs Sham, #P < 0.05 vs CHF+K+. Holm Sidak post hoc after One-Way ANOVA, n = 5 rats per group

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