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. Author manuscript; available in PMC: 2011 May 1.

Published in final edited form as: Int J Cancer. 2010 May 1;126(9):2112–2122. doi: 10.1002/ijc.24909

Enzymes responsible for dopamine synthesis are upregulated in cholangiocarcinoma tumor biopsy samples. TH (A) and DDC (B) immunoreactivity was assessed in biopsy samples from 48 cholangiocarcinoma patients and 4 healthy controls by immunohistochemistry (upper panel) and in paraffin-embedded sections containing cholangiocarcinoma and the surrounding non-malignant liver tissue (n=6; lower panel). Representative photomicrographs of the TH (A) and DDC (B) immunoreactivity are shown (magnification X40). Staining intensity was assessed as described in the methods. P values and the power analysis values are shown in parentheses.

Enzymes responsible for dopamine synthesis are upregulated in cholangiocarcinoma tumor biopsy samples. TH (A) and DDC (B) immunoreactivity was assessed in biopsy samples from 48 cholangiocarcinoma patients and 4 healthy controls by immunohistochemistry (upper panel) and in paraffin-embedded sections containing cholangiocarcinoma and the surrounding non-malignant liver tissue (n=6; lower panel). Representative photomicrographs of the TH (A) and DDC (B) immunoreactivity are shown (magnification X40). Staining intensity was assessed as described in the methods. P values and the power analysis values are shown in parentheses.