Table 1. Electrophysiological properties of ASC and of the derived in vitro-differentiated adipocytes.

	UNITS	S-ASC	V-ASC	S-ADIPO	V-ADIPO
RMP	mV	−50.1±5.3	−45.6±4.3*	−52.4±5.6	−43.1±4.8**
Cm	pF	12.0±1.2	19.1±1.6**	27.3±2.2§§	16.2±1.6**§§
Gm	nS	31.2±2.8	45.6±4.1**	24.5±2.2	30.4±2.8**§§
Gm/Cm	nS/pF	2.6±0.2	2.4±0.2	0.9±0.1§	1.9±0.2**§
Vth (IKs)	mV	−24.3±2.7	−12.4±2.6***	−12.3± 2.9§§§	−10.3±2.7
Vth (IBK)	mV	−22.1±2.9	−12.2±2.1***	−32.8± 3.0§§§	−32.6±2.5§§§
Vth (IKir)	mV	−72.1±7.1	−69.2±8.1	−72.4±6.8	−72.5±7.4
τ (IKs)	ms	160.5±15.1	220.5± 19.2***	180.5± 14.6§	200.8± 18.4***§
τ (IBK)	ms	78.3±7.6	36.4±6.3***	40.3±5.6§§	50.2±6.3*§§
IKs/Cm	pA/pF	60.7±5.5	14.2±1.3***	4.2±0.4§§§	2.5±0.2**§§§
IBK/Cm	pA/pF	33.6±3.0	17.9±1.6**	8.0±0.7§§§	11.3±1.0**§§
IKir/Cm	pA/pF	−10.2±1.3	−9.8±1.0	−101± 10.2§§§	−59± 7.1***§§§

Electrophysiological analysis was performed on ASC and their corresponding in vitro-differentiated adipocytes in patch clamp condition. RMP: resting membrane potential. C_m: membrane capacitance. G_m and G_m/C_m: total and specific membrane conductance, respectively. V_th: voltage threshold of activation of the three types of K⁺ currents investigated (I_BK, I_Ks and I_Kir). K⁺ current activation time constant (τ) for I_BK and I_Ks and current density I_BK/C_m and I_Ks/C_m values have been obtained at 50 mV and I_Kir/C_m at −110 mV. Mean ±SE values are reported. Student's t test was applied to compare paired samples: **,***P<0.01 and 0.001 V- versus S-ASC and V- versus S-ADIPO; §, §§, §§§ P<0.05, 0.01, 0.001 S- or V-ADIPO versus the corresponding ASC. Total number of analyzed cells (n) in populations obtained from 5 different subjects were: S-ASC (n = 84), V-ASC (n = 82), S-ADIPO (n = 54), V-ADIPO (n = 52); for I_Kir: S-ASC (n = 17), V-ASC (n = 18), S-ADIPO (n = 28), V-ADIPO (n = 24). mV: milli Volt; pF: pico Faraday; nS: nano Siemens; ms: milli seconds; pA: pico Ampere.