Publications by authors named "Hajime Matsushima"

Article Synopsis
  • The study focused on chemically induced liver progenitors (CLiP) derived from steatotic livers in miniature pigs to assess their potential for future liver disease treatment.
  • CLiP from steatotic livers showed a higher ability to proliferate compared to those from healthy livers, but only the normal group demonstrated mature liver cell functionality after re-differentiation.
  • Despite the lower production of extracellular vesicles (EVs) in the disease group, the overall findings suggest that CLiP from steatotic livers could be a viable option for cell therapy in liver disease patients.
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BACKGROUND In living-donor liver transplantation, biliary complications are considered an Achilles' heel. Consequently, various attempts have been made to reduce their incidence, and multiple innovations in surgical techniques have been reported. We herein report a case involving an intraoperative ultrasound cholangiogram in the recipient's abdominal cavity after reperfusion of the graft.

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Introduction: Hyperacute rejection leading to hepatic necrosis or intrahepatic bile duct stricture in ABO incompatible living-donor liver transplant (ABO-i LDLT) has been reported many times. With the advent of rituximab, the incidence of these complications has decreased significantly. However, consecutive biliary disruption after ABO-i LDLT has rarely been reported.

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Background: The aim of this study was to evaluate the effectiveness and safety of TJ-100 TSUMURA Daikenchuto (DKT) Extract Granules in preventing post-hepatectomy digestive symptoms and the effects on small intestinal mucosal atrophy.

Methods: Eligible patients were randomly assigned to the DKT therapy and usual care groups in a 1:1 ratio. The DKT therapy group was administered DKT for 14 days after surgery or until the day of discharge if the patient left the hospital before 14 days, and the usual care group did not receive DKT.

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The liver requires careful handling intra-operatively owing to its vital functions and complexity. Traditional open hepatectomy, while standard, is invasive and requires long recovery periods. Laparoscopic hepatectomy is a less invasive option, with its own challenges.

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Background/aim: Although studies on senescence-related genes using human islets of Langerhans have been performed, the expression of senescence-related genes and their association with functional genes in islets remain insufficiently investigated. We aimed to determine whether and what types of senescent-related genes are expressed in islets and identify their correlations with pancreatic function-related genes by using islets isolated for transplantation from individuals of various ages.

Materials And Methods: Islets from deceased donors of both sexes and different ages were used for analysis.

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Background: Liver disease imposes a significant medical burden that persists due to a shortage of liver donors and an incomplete understanding of liver disease progression. Hepatobiliary organoids (HBOs) could provide an in vitro mini-organ model to increase the understanding of the liver and may benefit the development of regenerative medicine.

Methods: In this study, we aimed to establish HBOs with bile duct (BD) structures and mature hepatocytes (MHs) using human chemically induced liver progenitor cells (hCLiPs).

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Background: Patients undergoing liver transplantation are in a state of coagulopathy before surgery because of liver failure. Intraoperative hemorrhage, massive transfusions, and post-reperfusion syndrome further contribute to coagulopathy, acidosis, and hypothermia. In such situations, temporary cessation of surgery with open abdominal management and resuscitation in the intensive care unit (ICU), which is commonly used as a damage control strategy in trauma care, may be effective.

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BACKGROUND Minimally invasive pancreatectomy has become the standard practice for the management of benign and malignant pancreatic tumors. Techniques such as robotic and laparoscopic approaches are known to reduce morbidity by offering benefits such as less blood loss, reduced pain, shorter hospital stays, and quicker recovery times. The indication for repeated minimally invasive pancreatectomy for recurrent or de novo pancreatic neoplasm after primary pancreatic surgery remains debated.

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Background: Circumportal pancreas is a rare morphological variant with clinical significance due to the high risk of postoperative pancreatic fistula in patients undergoing pancreaticoduodenectomy. Type IIIA (suprasplenic anteportal) is the most common type of circumportal pancreas. We present two cases of type IIIA treated with minimally invasive pancreaticoduodenectomy, and review the literature on patients with circumportal pancreas who underwent pancreatic surgery.

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Background: Numerous chemical reprogramming techniques have been reported, rendering them applicable to regenerative medicine research. The aim of our study was to evaluate the therapeutic potential of human CLiP derived from clinical specimens transplanted into a nonalcoholic steatohepatitis (NASH) mouse model of liver fibrosis.

Methods: We successfully generated chemically induced liver progenitor (CLiP), which exhibited progenitor-like characteristics, through stimulation with low-molecular-weight compounds.

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Background/aim: Although several studies in some neoplasms have reported correlation between the expression levels of Doublecortin-like kinase1(DCLK1) and carcinogenesis, its role in cholangiocarcinoma remains unknown.

Materials And Methods: DCLK1 expression in normal epithelium (NE), biliary intraepithelial neoplasia (BilIN)1∼3, and intrahepatic cholangiocarcinoma (ICC) were investigated immuno-histochemically. The molecular effects of DCLK1 were investigated by gene silencing using RNAi [DCLK1-tagrgeting (siDCLK1)].

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Background: A decrease in the regenerative capacity of age-damaged liver tissue has been reported. Liver progenitor cells may play an important role in the regeneration of injured livers. In the present study we aimed to investigate improvements in the regenerative capacity of age-damaged livers using chemically induced liver progenitors (CLiPs) derived from mature hepatocytes.

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Portal vein embolization (PVE) is recommended as a preoperative procedure for patients with biliary tract cancer scheduled to undergo hepatic resection of more than 50%-60% of the liver. However, details and/or information regarding the follow-up of unresectable cases are often lacking, and the clinical course of unresectable cases is not well analyzed and reported. This study aimed to clarify the clinical prognosis of patients with unresectable biliary tract cancer after PVE.

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Article Synopsis
  • A 62-year-old man with cancer had surgery to remove parts of his pancreas and bile duct, but after eight years, a new problem appeared in his liver.
  • He underwent procedures to help clear blockages and was treated for severe liver infections, but during a special endoscopic procedure, he became very ill and his heart stopped.
  • Doctors later found air in his body that caused complications, and despite treatment in the hospital, he passed away 114 days later due to his worsening health.
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Objective: To analyze 10,000 cases of living donor liver transplantation (LDLT) recipient data to elucidate outcomes with special reference to the graft-versus-recipient weight ratio (GRWR), based on the Japanese Liver Transplantation Society (JLTS) registry.

Background: The JLTS registry has been accurate and complete in characterizing and following trends in patient characteristics and survival of all patients with LDLT.

Methods: Between November 1989 and August 2021, 10,000 patients underwent LDLT in Japan.

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Background: Outcomes of intestinal transplantation with colon allograft (ICTx) remain controversial. We aimed to assess the outcomes of ICTx in comparison to intestinal transplantation without colon (ITx) using the UNOS/OPTN registry database.

Methods: We retrospectively reviewed 2612 patients who received primary intestinal transplants from 1998 to 2020.

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Background: Thyroid storm can be complicated by liver dysfunction, which may occasionally progress to acute liver failure. We herein report a case of acute liver failure following thyroid storm that was treated with living donor liver transplantation after resuscitation from cardiopulmonary arrest.

Case Report: The patient was a woman in her 40 s who had been diagnosed with an abnormal thyroid function.

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Background: With the chronic shortage of donated organs, expanding the indications for liver transplantation (LT) from older donors is critical. Nonalcoholic steatohepatitis (NASH) stands out because of its unique systemic pathogenesis and high recurrence rate, both of which might make donor selection less decisive. The present study aims to investigate the usefulness of old donors in LT for NASH patients.

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Article Synopsis
  • * There was a notable increase in deceased-donor liver transplants from Era 1 to Era 3, alongside a decrease in virus-related diseases and a rise in alcoholic liver cirrhosis cases in the more recent years.
  • * The findings indicate important shifts in liver transplantation practices in Japan, highlighting changes in donor types and patient conditions over the two decades.
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The eastern coastal areas of Japan are threatened by multiple ecological risks due to frequent natural disasters, climate changes, human activities, etc. Identification spatio-temporal variations and driving mechanisms of landscape ecological risk could be used as significant basis for policymakers. In this study, taking the eastern coastal areas of Japan affected by the 2011 Great East Japan Earthquake and Tsunami Disaster as the study area, the "Nature-Landscape Pattern-Human Society" (NA-LP-HS) multi-dimensional ecological risk assessment framework was established to analyze the spatio-temporal patterns, and identity driving factors using spatial cluster analysis and spatial principal component analysis (SPCA) based on ArcGIS from 2009 to 2021.

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Article Synopsis
  • - The study evaluates the effectiveness of serum glycosylated Wisteria floribunda agglutinin-positive Mac-2 binding protein (WFA+-M2BP) as a marker for diagnosing occult hepatocellular carcinoma (HCC) in patients undergoing liver transplantation.
  • - Analysis of 89 patients showed no significant differences in WFA+-M2BP levels across various histological groups, indicating that it may not be a reliable marker for detecting HCC.
  • - In contrast, alpha-fetoprotein (AFP) levels demonstrated significant correlations with the presence of HCC and tumor size, suggesting that AFP might be a better diagnostic tool in this context.
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We sometimes experience living donor liver transplantation (LDLT) involving very small grafts with graft-to-recipient weight ratio (GRWR) < 0.6% when the actual graft size is smaller than predicted. The outcomes in this situation have not been fully investigated.

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Background: Recently, the successful delivery of organs for transplantation using drones was reported. We investigated the influence of transportation by drones on the quality of liver grafts using a rat model.

Methods: Livers of 12 rats (8 and 32 weeks old) were divided into 2 groups of six.

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