TABLE 1.

Electrophysiological characteristics of untreated, HBAR-treated, and shHBAR-treated SAN cells

Cell capacitances were obtained by a built-in function of Axopatch 200B during seal tests. I(Δ−40 mV) is the difference between I(−110 mV) and I(−70 mV) obtained by the voltage ramp protocol as described for Fig. 4E. Values are means ± S.E. ANOVA, analysis of variance; pF, picofarads.

	Control SAN cells (n)	HBAR-treated SAN cells (n)	shHBAR-treated SAN cells (n)	One-way ANOVA p value
Cell capacitance (pF)	35.9 ± 3.4 (38)	37.6 ± 2.8 (18)	44.3 ± 3.5 (15)	p = 0.3435
I(Δ−40 mV) (pA/pF)	−7.5 ± 0.9 (38)	−10.0 ± 1.4 (18)	−9.9 ± 1.7 (15)	p = 0.25