TRH microinjection into DVC enhances motility of rabbits gallbladder via vagus nerve

Figure 1 The effects of TRH microinjected into DVC on the GP. A. control; B. TRH (0.8 nmol/1 μL); C. i.v. atropine (0.2 mg/kg); D. vagotomy; E. i.v. phentolamine (1.5 mg/kg) ; F. i.v. propranolol (1.5 mg/kg); G. after transection of spinal cord through T1; G.↓(0.8 nmol/1 μL).

Figure 2 The effects of microinjection of TRH (0. 8 nmol/1 μL) or NS on GP. *P < 0.05 as compared with NS

Figure 3 The effect of microinjection of TRH (0. 8 nmol/1 μL) or NS on the frequency of phasic contraction of gallbladder (FPCGB). **P < 0.01, *P < 0.05 as compared with NS

Figure 4 Dose-response curve for TRH stimulation on GP after microinjection into DVC.

Figure 5 Dose-response curve for TRH stimulation on the number of phasic contraction of GB (PCGB) after microinjection into DVC.