Fig. 1
From: Effect of bladder distension on arginine vasopressin secretion in rats
Chronological serum AVP changes in control, empty bladder and distended bladder group rats. a Chronological changes in serum arginine vasopressin (AVP) in the daytime groups. Rats were divided into three (n = 6 each): Control; empty bladder; and distended bladder. Experiments were performed between 9:00 and 11:00. Serum AVP was measured at 0, 30, and 60 min after the transurethral catheterization or bladder distention. The AVP levels did not change from baseline in each three groups. b Chronological changes in serum AVP in the nighttime groups. Rats were divided into three groups (n = 6 each): control; empty bladder; and distended bladder. Experiments were performed between 21:00 and 23:00. Serum AVP was measured at 0, 30, and 60 min after the transurethral catheterization or bladder distention. The AVP levels did not change from baseline in each three groups