title: [Liver regeneration in living-donor liver transplantation].
abstract: Liver regeneration in living-donor liver transplantation is summarized from the authors' data. In donors, liver function tests recovered to within the normal range 2 weeks after surgery regardless of graft type. At 2 weeks, the volumetric recovery of the remnant liver was 65% and 80% of the original volume in right and left lobe donors, respectively. These results suggest that functional recovery occurs earlier than morphologic restoration in donors. In recipients, the factor that affected the regeneration rate in size 4 weeks after transplantation was only implanted graft size; the rate was greater in patients in whom smaller grafts were implanted. In recipients with a rate of two or more, however, high portal vein pressure and flow were observed. Further, persistent low platelet counts and hyperbilirubinemia were seen in those patients. These results indicate that size enlargement may be caused by engorgement, and functional recovery is not achieved concurrently with morphologic restoration, especially in patients with smaller grafts. In patients with fulminant hepatic failure who receive auxiliary partial orthotopic liver transplantation, sequential histopathologic observations of the diseased liver revealed that liver regeneration initiates from cytokeratin 17-positive ductules and at least 1 year is necessary for complete recovery.
authors.affiliation: Organ Transplantation and Regenerative Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
authors.forename: Maeng Bong
authors.initials: MB
authors.lastname: Jin
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Shimamura
authors.forename: Masahiko
authors.initials: M
authors.lastname: Taniguchi
authors.forename: Yoshihide
authors.initials: Y
authors.lastname: Nagasako
authors.forename: Tomomi
authors.initials: T
authors.lastname: Suzuki
authors.forename: Toshiya
authors.initials: T
authors.lastname: Kamiyama
authors.forename: Michiaki
authors.initials: M
authors.lastname: Matsushita
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Furukawa
authors.forename: Satoru
authors.initials: S
authors.lastname: Todo
mesh_terms: D022781:Hepatocytes / Q000378:metabolism / Q000502:physiology; D006801:Humans; D007633:Keratins / Q000378:metabolism; D008115:Liver Regeneration / Q000502:physiology*; D016031:Liver Transplantation / Q000379:methods / Q000473:pathology / Q000502:physiology*; D019520:Living Donors; D009929:Organ Size; D013997:Time Factors
chemical_list: D007633:Keratins