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Evaluation of safety for hepatectomy in a novel mouse model with nonalcoholic-steatohepatitis

World Journal of Gastroenterology 2018年第15期24卷 1622-1631页

作者： yusuke ozawa Takafumi Tamura Yohei Owada Yoshio Shimizu Akira Kemmochi Katsuji Hisakura Takashi Matsuzaka Hitoshi Shimano Hiroko Isoda Nobuhiro Ohkohchi Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery Faculty of Medicine University of Tsukuba Department of Endocrinology and Metabolism Faculty of Medicine University of Tsukuba Faculty of Life and Environmental Sciences University of Tsukuba

AIM To investigate whether the liver resection volume in a newly developed nonalcoholic steatohepatitis(NASH) model influences surgical *** For establishment of a NASH model, mice were fed a high-fat diet for 4 wk, administered CCl_4 for the last 2 wk, and administered T0901317 for the last 5 d. We divided these mice into two groups: A 30% partial hepatectomy(PH) of NASH liver group and a 70% PH of NASH liver group. In addition, a 70% PH of normal liver group served as the control. Each group was evaluated for survival rate, regeneration, apoptosis, necrosis and DNA expression after *** In the 70% PH of NASH group, the survival rate was significantly decreased compared with that in the control and 30% PH of NASH groups(P < 0.01). 10 of 32 mice in the NASH 70% PH group died within 48 h after PH. Serum aspartate aminotransferase(AST) levels and total bilirubin(T-Bil) in the NASH 70% PH group were significantly higher than the levels in the other two groups(AST: P < 0.05, T-Bil: P < 0.01). In both PH of NASH groups, signaling proteins involved in regeneration were expressed at lower levels than those in the control group(P < 0.01). The 70% PH of NASH group also exhibited a lower number of Ki-67-positive cells and higher rates of apoptosis and necrosis than the NASH 30% PH group(P < 0.01). In addition, DNA microarray assays showed differences in gene expression associated with cell cycle arrest and *** The function of the residual liver is impaired in fatty liver compared to normal liver. A larger residual volume is required to maintain liver functions in mice with NASH.

关键词： Hepatectomy Liver regeneration Residual liver Liver proliferation Nonalcoholic steatohepatitis

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Successful treatment with laparoscopic surgery and sequential multikinase inhibitor therapy for hepatocellular carcinoma:A case report

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World Journal of Gastrointestinal Surgery 2022年第3期14卷 260-267页

作者： Yutaka Endo Motohide Shimazu Tadayuki Sakuragawa yusuke Uchi Motonori Edanami Ken Sunamura Soji ozawa Naokazu Chiba Shigeyuki Kawachi Department of Surgery Tama Kyuryo HospitalTokyo 1940297Japan Department of Digestive and Transplantation Surgery Tokyo Medical University Hachioji Medical CenterTokyo 1930998Japan

BACKGROUND Hepatocellular carcinoma(HCC)with massive portal vein tumor thrombosis(PVTT)and distant metastasis is considered ***,due to recent developments in systemic chemotherapy,successful cases of conversion therapy for unresectable diseases have been ***,we report a successful multidisciplinary approach for treatment of multi-visceral recurrence with sequential multikinase inhibitor and laparoscopic *** SUMMARY A 63-year-old woman with chronic hepatitis B virus infection was diagnosed with ***,she underwent two rounds of laparoscopic partial hepatectomy,laparoscopic left adrenalectomy,and transcatheter arterial chemoembolization plus sorafenib for *** years after initial hepatectomy,she presented with a 43-mm mass in the spleen and tumor thrombus involving the main portal vein trunk with *** liver function was Child-Pugh B(8),and protein induced by vitamin K absence or antagonist II(PIVKA II)levels were elevated up to 46.291 mAU/*** initial treatment with regorafenib for three months was unsuccessful,the patient was administered *** months post-treatment,there was no contrast enhancement of PVTT or splenic *** was discontinued due to severe ***,splenic metastasis became viable,and PIVKA II ***,hand-assisted laparoscopic splenectomy was *** experienced no clinical recurrence 14 mo after *** Conversion surgery after successful multikinase inhibitor treatment might be considered an effective treatment option for advanced HCC.

关键词： Hepatocellular carcinoma Lenvatinib Portal vein Venous thrombosis Splenic neoplasms Case report

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