Hepatic bile acid synthesis and DNA synthetic rate after partial hepatectomy.

Chijiiwa, K; Kozaki, N; Naito, T; Okamoto, S; Kuroki, S; Yamashita, H; Tanaka, M · Br J Surg · 1996

basic_science · Level V

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Abstract

The relationship between hepatic DNA synthetic rate and activity of cholesterol 7 alpha-hydroxylase, the rate limiting enzyme for bile acid synthesis, was examined in regenerating liver after partial hepatectomy or sham operation in rats. Hepatic cholesterol 7 alpha-hydroxylase activity was significantly (P < 0.001) suppressed on days 1 and 2, returned to the control level on day 3, and was significantly raised on day 7 after hepatectomy. The rate of DNA synthesis was significantly (P < 0.001) activated during the first 3 days after hepatectomy and returned to the control level on day 7. Enzyme activities regulating hepatic bile acid synthesis and DNA synthesis change inversely during liver regeneration after hepatectomy.

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