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

Figure 2

The mean, minimal and maximal transepithelial potential difference value for mechanical stimulation RH₁. The figure shows arrangement the difference of electrical potential, its minimal and maximal value during first stimulation by Ringer solution (stimulation RH₁). The time of stimulation was 15 seconds. 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 RH₁ stimulation (mV), : minimal transepithelial electrical potential during RH₁ stimulation (mV), and : maximal transepithelial electrical potential during RH₁ stimulation (mV).