Figure 4

Expression of L-type calcium channel α ₁ c by immunocytochemistry (200×). (A: Expression of L-type calcium channel α₁c before pacing; B: Expression of L-type calcium channel α₁c at 3 h after pacing; C: Expression of L-type calcium channel α₁c at 12 h after pacing; D: Expression of L-type calcium channel α₁c at 24 h after pacing).