Fig. 2.

Ca²⁺ communication in microvessels of LPS-treated lungs. A–D: fluorescence images show fluo4 fluorescence in microvessels at baseline (A and C) and after uncaging (B and D) in control (A and B) and 5-day post-LPS lungs (C and D). In A and C, ○ represents site of uncaging. Bar, 30 μm. E: graph shows uncaging-induced changes in microvessel fluo4 fluorescence at various distances from the uncaging site in control (●) and 5-day post-LPS lungs (○). §P < 0.05 compared with the corresponding control response. No. of vessels analyzed for each data point indicated in parentheses (3 lungs/treatment group).