Relaxin influences ileal muscular activity through a dual signaling pathway in mice

Figure 4 Relaxin affects L-type Ca²⁺ currents in smooth muscle cell of the mouse ileum. A: Representative time course of L-type Ca²⁺ currents (I_Ca,L) recorded in the high TEA-Ca²⁺ solution from a control cell (a) and after RLX addition (b); B-D: ICa,L tracings in the control (a) and in the presence of RLX (b) added 15 min after ODQ (B) or 9CPA(C) or both ODQ + 9CPA (D). Current records shown in the different panels (A-D) are obtained from four different SMCs. The first 700 ms of the current response are displayed.