Table 1.
Time-to-peak and time-to-steady-state contractions and [Ca2+]i in response to KCl (96 mM) and PHE (10−5 M) in IVC segments of male and female rats
| Male |
Female |
|||
|---|---|---|---|---|
| KCl | PHE | KCl | PHE | |
| Time-to-peak contraction, min | 2.71±0.95 (7) | 3.86±0.57 (5) | 3.23±1.20 (6) | 3.00±0.96 (6) |
| P = 0.737 | P = 0.484 | |||
| Time-to-peak [Ca2+]i, min | 0.93±0.22 (7) | 0.81±0.37 (5) | 0.87±0.23 (6) | 0.67±0.46 (6) |
| P = 0.854 | P = 0.823 | |||
| Time-to-steady-state contraction, min | 5.50±0.65 (7) | 6.27±0.46 (5) | 6.23±0.57 (6) | 6.50±0.84 (6) |
| P = 0.424 | P = 0.826 | |||
| Time-to-steady-state [Ca2+]i, min | 3.31±0.59 (7) | 3.46±0.72 (5) | 3.05±0.41 (6) | 3.30±0.65 (6) |
| P = 0.733 | P = 0.872 | |||
Data are expressed as means ± SE; n = number in parenthesis. P value represents the differences between measurements in female inferior vena cava (IVC) and the corresponding measurements in male IVC. PHE, phenylephrine.