Table 1.
Electrophysiological membrane characteristics of CB glomus cells: Cell capacitance (Cm), membrane resistance (Rm), normalized conductance and resting membrane potentials (Vm) were measured and calculated from CB glomus cells of normoxia pups and glomus cells of hyperoxia treated pups by perforated patch clamp.
| Cm (pF) | Rm (GΩ) | Norm. Conduct. (nS/pF) |
Vm (mV) | |
|---|---|---|---|---|
| Nomoxia 8 (P8) | 3.15 ± 0.18 (22) | 1.48 ± 0.14 (15) | 0.25±0.04 (15) | −45.15 ± 1.69 (19) |
| Hyperoxia 1–8 (Hyper 1–8) | 2.15 ± 0.16 (8) ** | 2.23 ± 0.36 (5) * | 0.24±0.04 (5) | −42.20 ± 2.93 (5) |
| Normoxia 15 (P15) | 2.99 ± 0.12 (24) | 2.23 ± 0.31 (13) | 0.20±0.03 (13) | −45.70 ± 2.01 (18) |
| Hyperoxia 7–15 (Hyper 7–15) | 2.68 ± 0.09 (31) | 1.94 ± 0.21 (21) | 0.23±0.03 (21) | −41.91 ± 0.97 (17) |
| Hyperoxia 1–15 (Hyper 1–15) | 2.50 ± 0.12 (19) * | 2.04 ± 0.24 (13) | 0.22±0.03 (13) | −37.65 ± 1.47 (11) * |
(*)
p<0.05 and
(**)
p<0.01 different from same-age normoxia control.
“n” shown in parentheses.