Liver fibrosis in CCl₄-treated rats.

<p>On the 5^th week, histological examination of the liver was performed in three rats, and fibrosis consistent with liver cirrhosis was found in all rats (Fig. 1-A, magnification×40). Liver histology on the 21^st week showed liver cirrhosis in control rats (Fig. 1-B, magnification×40). Liver histology on the 21^st week showed liver cirrhosis in BCAA-treated rats (Fig. 1-C, magnification×40). Azan-positive area in the sample was identified as green color using the Lumina Vision digital analyzing system. The picture in (Fig. 1-D) was derived from (Fig. 1-C). The green and total areas were digitally measured. CCl₄, carbon tetrachloride.