Figure 9. Selective stimulation of α₁ARs or α₂ARs attenuates ROV in upstream branches of GM in young mice .

Peak ROV (% max) in FA, 1A, 2A and 3A following 100, 250, 500 and 1000 ms contraction in the GM of young mice. Across contraction durations, selective activation of α₁ARs (PE, 10⁻⁷  m) or of α₂ARs (UK, 10⁻⁷  m) attenuated ROV (% max) in FA, 1A and 2A but had no effect on ROV in 3A. ^Δ P < 0.05 main effect of branch order; ^# P < 0.05 main effect of treatment; ^Φ P < 0.05, PE vs. control, ^ψ P < 0.05, UK vs. control. Summary data are means ± SEM for n = 6 young mice.