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Photomicrographs showing immunohistochemistry staining of TGF-β1 of livers from the different experimental groups. Control group: showing normal liver architecture, (b) TAA group (hepatotoxic group): showing more TGF-β1 expression, (c) SY + TAA group: showing mild TGF-β1-positive hepatocytes in the liver, (d) CS100 + TAA group: showing moderate TGF-β1 expression, and (e) CS300 + TAA group: showing mild TGF-β1 expression. (Bar scale: 50 μm).
