![Fig. 4. Summarized data for the effects of increasing extracellular Ca2+concentration in control and propofol-pretreated pulmonary artery smooth muscle (PASM) strips bathed in a Ca2+-free buffer containing 30 mm KCl. Extracellular Ca2+was increased incrementally from 0 to 3 mm while measuring [Ca2+]i(340/380 ratio) and tension. (Top ) Results are plotted as percentage changes relative to 30 mm KCl. (Bottom ) Results are replotted to demonstrate the effects of propofol on the [Ca2+]i-tension relation. *P < 0.05 vs. control; n = 5.](https://asa2.silverchair-cdn.com/asa2/content_public/journal/anesthesiology/97/6/10.1097_00000542-200212000-00031/2/31ff4.png?Expires=1716571843&Signature=lDFjy1EZKWBQu2mFc~fNa~Dw~inL5yV4UJJb7g3Ah6FbAGsHwdS3314C-~Kh9zjvxuu0AASSrBQiCoTOJwQlKjj5merPaNQ5EpjH--Iyxduvd85qYr50ss66EBJI5trsFMTXjF-htyepoX3BylCGhuKBgmgEPCkVNlWwXwXdLMDRF9R2NKdul1iyab~NvWfG1FW7o3lpmOfZ-Ky6EUhErnTcFW5JEKSWUmyXk1224OqrhvZpRMrr9oZHzXxZRh81WnmcsvvqaL1FAeCKoEh35npxVXpuKgzAXXiUiS7xfDk1u7FkmV3JoRLFcpWjfxupBfN462zERutVuy~uO0yDvg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Fig. 4. Summarized data for the effects of increasing extracellular Ca2+concentration in control and propofol-pretreated pulmonary artery smooth muscle (PASM) strips bathed in a Ca2+-free buffer containing 30 mm KCl. Extracellular Ca2+was increased incrementally from 0 to 3 mm while measuring [Ca2+]i(340/380 ratio) and tension. (Top ) Results are plotted as percentage changes relative to 30 mm KCl. (Bottom ) Results are replotted to demonstrate the effects of propofol on the [Ca2+]i-tension relation. *P < 0.05 vs. control; n = 5.
