Table 1.
Basal bioelectric parameters in the rat proximal and distal colon
| Normal Ringer |
Cl−-Free Ringer |
|||
|---|---|---|---|---|
| Proximal | Distal | Proximal | Distal | |
| Isc, μA/cm2 | 44 ± 7 (35) | 43 ± 5 (35) | 1.4 ± 2.4 (10)* | 1.7 ± 1.7 (10)* |
| R, Ω/cm2 | 127 ± 13 (35) | 142 ± 12 (35) | 380 ± 35 (10)* | 423 ± 17 (10)* |
| PD, mV | 6.0 ± 0.7 (35) | 7.9 ± 0.9 (35) | 1.2 ± 0.2 (10)* | 1.1 ± 0.2 (10)* |
Data shown are means ± SE with number of intestinal segments shown in parentheses. Potential difference (PD) is lumen negative. No polarity is assigned to the short-circuit current (Isc), but it is in the same direction as PD. R, resistance.
*
P < 0.01 vs. normal Ringer.