American Society of Anesthesiologists

Figure 3. Fluorescence intensity due to excitation at 360 nm (F360) in two strips of canine tracheal smooth muscle during stimulation with 45 mM KCl. The rate of decline of F360produced by the addition of 0.5 mM Mn2+ was less in the strips exposed to nifedepine (10 micro Meter). F360was normalized to values before Mn2+ addition and after lysis.

Figure 3. Fluorescence intensity due to excitation at 360 nm (F³⁶⁰) in two strips of canine tracheal smooth muscle during stimulation with 45 mM KCl. The rate of decline of F³⁶⁰produced by the addition of 0.5 mM Mn²+ was less in the strips exposed to nifedepine (10 micro Meter). F³⁶⁰was normalized to values before Mn²+ addition and after lysis.

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