594012.fig.001a
(a)
594012.fig.001b
(b)
594012.fig.001c
(c)
594012.fig.001d
(d)
594012.fig.001e
(e)
594012.fig.001f
(f)
Figure 1: Effect of andrographolide on histological sections of the liver and kidney. Histological sections of the kidney (first row) and liver (second row) in an acute toxicity test. ((a) and (d)) Section from rats treated with CMC. ((b) and (e)) Sections from rats treated with 100 mg/kg andrographolide. ((c) and (f)) Sections from rats treated with 500 mg/kg andrographolide. There are no differences in the structures of the livers and kidneys between the treated and control groups (H&E staining, 20x).