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Fig. 6 | Biological Research

Fig. 6

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

Fig. 6

Dietary K+ supplementation improves cardiac diastolic function in CHF rats. A Representative recording of left ventricle (LV) intraventricular pressure from one Sham rat, one CHF rat and one CHF+K+ rat (Upper panel). Lower panel shows ventilatory flows in each section. Note that end diastolic pressure (EDP) is modulated by the ventilatory cycle. B End diastolic pressure volume relationship assessed by single-beat PV-loop analysis during the expiratory and inspiratory phases of the breathing cycle. C Summary data of normalized EDP (nEDP) during inspiration and expiration. Note that the EDP was severely modulated by the ventilatory cycle in CHF rats and this was abolished by K+ diet supplementation. D Summary data showing percent changes in Δintraventricular pressures at Exp-Insp. Two-way ANOVA (C) and One-way ANOVA (D), followed by Holm Sidak posthoc. P < 0.05 vs. Insp; *P < 0.05 vs. Sham, #P < 0.05 vs CHF+K+ n = 5 rats per group

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