Figure 4.
Adrenocorticoids affect the expression of TRPCs in isolated chromaffin cells from the adrenal medulla of metabolic syndrome pigs. A, TRPC RNAs are quickly degraded in isolated chromaffin cells. RT-PCR analysis of TRPC expression in isolated chromaffin cells treated with actinomycin D (AMD) for 24 h vs. untreated cells. B and C, Relative expression of TRPCs in dissociated adrenal chromaffin cells. RT-PCR analysis was performed using total RNA isolated from chromaffin cells treated with indicated chemicals for 24 h in a serum-free medium. A, Aldosterone; C, control; DM, dexamethasone; SL, spironolactone. β-Actin normalized data are plotted. Representative images of ethidium bromide-containing agarose gels are shown in B. *, Significant difference between tested groups (P < 0.05; n = 4–9).