Figure 4. Effect of low glucose (0 mM glucose) and hypoxia (5% O₂) on ATP release from rat CB chemoreceptor cells (n = 5).

0 mm glucose was applied between minutes 25 and 35 of the protocol and 5% O₂ between minutes 55 and 65. The incubating solutions contained 5.5 mm glucose except when hypoglycaemic stimulus was applied. Data represent means ± s.e.m.**P < 0.01; one way ANOVA with Bonferroni's multicomparison test.