Fig. 1

Changes of sodium and water retention indexes in PAN and control rats throughout the study. a The time courses of body weight. b The time courses of urine volume. c The time courses of proteinuria. d The time courses of urinary sodium. e sodium balance curve of model group. f The time courses of urinary chlorine. g The time courses of ascites. h Relationship between urinary sodium and ascite in NS rats. i Total body water in rats. j Extracellular fluid in rats. The values are mean + SE from four to six animals. * indicates a statistical difference of P < 0.05 between the model group and the control group, while ** indicates a statistical difference of P < 0.01 between the two groups