Figure 4.

Effects of temperature and extracellular Ca²⁺ on adenosine and inosine levels. The hypoxia-evoked increment in adenosine (A) and inosine (B) were measured at 25 and 35°C. Each column and error bar represents the mean ± SEM (n = 8). **P < 0.01 significantly different from values at 25°C (unpaired Student's t-test). The hypoxia-evoked increment in adenosine (C) and inosine (D) in 0, 1.25 and 2.5 mM extracellular Ca²⁺ was measured. Each symbol and error bar represents the mean ± SEM. (n = 6).