ontrol *versus* forskolin mRNA data were analysed using Wilcoxon matched pairs for paired data and Friedman's test, with a Dunn's multiple comparisons *post-hoc* test for analysis of three groups or more. The Western blot densitometry were analysed with an ANOVA followed by Bonferroni's post-test. Data are shown as the median, the 00th and 00th percentiles and the range. \**P* \< 0.00 and \*\**P* \< 0.00 for control *versus* forskolin and ^\#\#^*P* \< 0.00 for forskolin *versus* cAMP a