Table 1. Effects of VU573 (10 µM) and barium (5 mM) on the basolateral membrane voltage (Vbl) and input resistance (Rpc) of principal cells in isolated Malpighian tubules.
| Vbl (mV) | Rpc (kΩ) | |
| Control (n = 5*) | −45.4±3.6 | 249.6±15.2 |
| VU573 (n = 5) | −52.4±4.5 b | 255.3±15.4 a |
| Control (n = 6) | −47.4±4.2 | 199.2±30.4 |
| Barium (n = 6) | −59.3±3.3 c | 322.8±31.0 d |
a,b,c,d
indicate P<0.02, 0.003, 0.008, and 0.0003, respectively (paired t-test).
Values are means ± SEM.
*
n = number of principal cells impaled from as many isolated tubules.