Figure 9.

Effect of norepinephrine on cell structure and load-free cell shortening. (A) Original photographs obtained from cultures exposed to clorgyline (1 µM), norepinephrine (NOR, 10 µM), atwenolol (10 µM), or combinations thereof for 24 h (n = 4 each). For better visibility of rod-shaped and round cells see Supplementary Information. Data are expressed as the number of rod-shaped cells per mm². Data are full ranges (whiskers) with median and 25 and 75% quartiles (boxes). One-way ANOVA with Student–Newman–Keuls post hoc analysis. Equal letters indicate no group differences. (B) Load-free cell shortening (see Figure 1 for details) for cells exposed to clorgyline (1 µM), norepinephrine (NOR, 10 µM), or combinations thereof for 24 h (n = 119–123). One-way ANOVA with Student–Newman–Keuls post hoc analysis. Equal letters indicate no group differences. (C) Load-free cell shortening (see Figure 1 for details) for cells exposed to atenolol (Ate, 10 µM), norepinephrine (NOR, 10 µM), or combinations thereof for 24 h (n = 97–121). One-way ANOVA with Student–Newman–Keuls post hoc analysis. Equal letters indicate no group differences.