Research Article| Volume 165, ISSUE 2, P345-352, February 2019

Hepatic regeneration by associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) is feasible but attenuated in rat liver with thioacetamide-induced fibrosis

Published:September 21, 2018DOI:



      The associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) procedure promotes the proliferation of the future liver remnant, but evidence to support the feasibility of ALPPS in livers with fibrosis is needed. Therefore the aim of this study was to establish a fibrotic ALPPS model in the rat to compare the capacity of regeneration in the remnant liver with or without fibrosis.


      In our study we first established a thioacetamide-induced fibrotic ALPPS model in rats. Then the ALPPS-induced regenerative capacities of normal and fibrotic liver were compared in this animal model. In addition, markers of regeneration, including the proliferative index and cyclin D1 and proliferating cell nuclear antigen levels, as well as various indicators of liver function were determined to evaluate the quality of the hepatic regeneration.


      Compared with that of the sham group (opening of the peritoneal cavity with no further operative manipulation), the proliferation of the future liver remnant in fibrotic rat liver after the ALPPS procedure was increased on postoperative days 1, 2, and 5 (P < .039 each). In addition, the proliferative response was greater in the ALPPS group than in the ligation group subjected only to portal vein ligation of the left lateral, left middle, right, and caudate lobes (P = .099, P = .006, and P = .020 on postoperative days 1, 2, and 5, respectively). In contrast, the ALPPS-induced regenerative capacity in the fibrotic rat livers was attenuated compared with that in the normal liver on postoperative days 1, 2, and 5 (P < .031 for each) after stage I and on postoperative day 5 after stage II of the ALPPS procedure (P < .005). This attenuated the recovery of liver function, and the greater mortality rate indicated that functional proliferation was either delayed or not as extensive in the fibrotic rat livers.


      Through establishing a rat model of thioacetamide-induced liver fibrosis, we found that ALPPS-derived liver regeneration was present and feasible in fibrotic livers, but this effect was attenuated compared with that in normal liver.
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