Figure 4.

Basal and VP-stimulated release of TXB₂by MCA segments. Mature multigravid adult (MA, 4–6 months) female (MA F) or age-matched male rats (MA M) and reproductively senescent (RS, 10–12 months) female (RS F) or age-matched male rats (RS M). Data points represent means ± SE (n = 6 rats/group). (a-c) 0.0001 ≤ P ≤ 0.003, mean values within groups (MA F, MA M, RS F, RS M) without common superscript are significantly different. (*, #) 0.0001 ≤ P ≤ 0.003 mean values between groups (MA F vs. MA M vs. RS F vs. RS M) with different superscripts are significantly different.