Effect of Propolis Preparations on Transepithelial Electrical Potential, Resistance, and Ion Transport in In Vitro Study

Figure 5

The mean, minimal, maximal transepithelial potential difference value for chemical stimulation AB. The figure shows arrangement the difference of electrical potential, its minimal and maximal value during stimulation by amiloride with bumetanide (stimulation AB). The time of stimulation was 15 seconds. In this experiment no statistically significant changes. Abbreviations. p < 0.001. I: long-term incubation in 1 ml ethanol extract of propolis dissolved in 100 ml water, II: undisturbed ion transport, III: long-term incubation in propolis ointment, dPD: difference of electrical potential values during amilloride in bumetanide solution stimulation (mV), : minimal transepithelial electrical potential during amiloride in bumetanide solution stimulation (mV), and : maximal transepithelial electrical potential during amiloride in bumetanide solution stimulation (mV).