Experimental study on liver regeneration after simultaneous partial hepatectomy and pancreatectomy

In this study, we performed hepatectomy and pancreatectomy to assess the physiological contribution of the pancreas, especially in terms of endocrine function to hepatic regeneration. Group 1 Wistar rats underwent 70% hepatectomy and group 2 rats underwent 70% hepatectomy plus 50% pancreatectomy. Th...

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Veröffentlicht in:Hepatology research 2000-06, Vol.17 (3), p.223-236
Hauptverfasser: Furuta, Kazunori, Kakita, Akira, Takahashi, Tsuyoshi, Tomiya, Tomoaki, Fujiwara, Kenji
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container_end_page 236
container_issue 3
container_start_page 223
container_title Hepatology research
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creator Furuta, Kazunori
Kakita, Akira
Takahashi, Tsuyoshi
Tomiya, Tomoaki
Fujiwara, Kenji
description In this study, we performed hepatectomy and pancreatectomy to assess the physiological contribution of the pancreas, especially in terms of endocrine function to hepatic regeneration. Group 1 Wistar rats underwent 70% hepatectomy and group 2 rats underwent 70% hepatectomy plus 50% pancreatectomy. The time course assessment of liver regeneration rates obtained by Fishback’s formula demonstrated a difference in rates between the two groups as early as day 3 or day 7 after surgery. Since levels of both PCNA-positive cells and serum transforming growth factor-α (TGF-α) were significantly higher in the hepatectomy only group, we could prove the difference of liver regeneration between the two groups. We have concluded that pancreatectomy retards the liver regeneration initiation processes occurring from 24 h to 3 days after evisceration. Glucagon–insulin molar ratios most significantly differed between the two groups 3 days after evisceration in the present study. This result was due to increased glucagon level of group 2 at day 3 after evisceration. Our findings suggest that 50% partial pancreatectomy inhibits the rate of hepatic regeneration, thereby altering the supply of pancreatic hormones, especially glucagon.
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subjects Hepatectomy
Liver regeneration
Pancreatectomy
TGF-α
title Experimental study on liver regeneration after simultaneous partial hepatectomy and pancreatectomy
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