Table 3.
Group of cells | Insulin (µIU/ml) | Percentage of cells with cumulative inactivation | Percentage of cumulative inactivation |
---|---|---|---|
<10% inactivation | 10 | 50 | 11.7 ± 0.4 (2) |
100 | 54.5 | 16.1 ± 3.1 (6) | |
10–30% inactivation | 10 | 60 | 11.5 ± 2.9 (6) |
100 | 70 | 14.2 ± 1.9 (14) | |
>30% inactivation | 10 | 41.2 | 15.4 ± 5.2 (7) |
100 | 46.7 | 13.9 ± 3.5 (7) |
Adipocytes were differentiated in poor (< 10%), moderate (10–30%) and pronounced (> 30%) inactivation of Kv currents. SVF-derived adipocytes were incubated 4–7 days in low (10 µIU/ml) or high (100 µIU/ml) insulin concentrations following what described in the methods section. The cumulative inactivation was measured applying a train of seven depolarizing voltage steps of 250 ms from − 60 to + 60 mV once every 400 ms. The percentage of inactivation was calculated from the remaining current at the end of the last pulse vs the first. Values are mean ± SE. Number of cells indicated in brackets