Publications by authors named "Shigefuku R"

Article Synopsis
  • * She had a splenectomy to address her thrombocytopenia caused by an enlarged spleen (hypersplenism), but nine months later, she experienced exertional dyspnea and was diagnosed with portopulmonary hypertension (PoPH).
  • * Treatment with the medication macitentan improved her symptoms and right heart pressure readings, marking a rare case of PoPH arising after splenectomy.
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Introduction: Non-alcoholic fatty liver disease, now known as metabolic dysfunction-associated steatotic liver disease (MASLD), is a phenotype of the metabolic syndrome in the liver and is clearly associated with metabolic abnormalities such as hyperglycaemia and dyslipidaemia. Although the prevalence of MASLD is increasing worldwide, there is currently no consensus on the efficacy and safety of the drugs used to treat MASLD/metabolic dysfunction-associated steatohepatitis (MASH). Pemafibrate, a selective peroxisome proliferator-activated receptor alpha modulator, was designed to have higher peroxisome proliferator-activated receptor alfa (PPARα) agonist activity and selectivity than existing PPARα agonists, and in development trials, without increasing creatinine levels, lipid parameters and alanine aminotransferase (ALT) were significantly improved.

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Skeletal muscle loss has been identified as a prognostic factor in patients with unresectable hepatocellular carcinoma (uHCC) undergoing treatment with lenvatinib (LEN). While atezolizumab plus bevacizumab (ATZ-BEV) is recommended as first-line therapy for uHCC, the impact of skeletal muscle loss in these patients remains unclear. We enrolled 97 patients treated with either LEN or ATZ-BEV as their first-line therapy and divided them into two groups based on the presence or absence of a low psoas muscle index (low PMI) before treatment.

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  • Hereditary hemochromatosis (HH) is a serious iron-storage disorder that can cause significant organ damage, and HH type 3 is linked to mutations in the TFR2 gene, which is rare in Asia.
  • A 69-year-old Japanese woman with joint pain and liver issues was found to have high iron levels and a novel homozygous mutation in her TFR2 gene, identified through genetic testing.
  • After treatment with phlebotomy, her arthritis and liver enzyme levels improved, marking the first documented case of this specific mutation in an HH type 3 patient.
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  • Pemafibrate is an effective treatment for improving liver function and lipid levels in patients with steatotic liver disease (SLD) and alcohol-associated liver disease (ALD), as shown in a study with different patient groups over 48 weeks.
  • Significant reductions in liver enzymes such as ALT, AST, and triglycerides were observed in all patient groups, regardless of alcohol consumption.
  • The results suggest that pemafibrate could be a valuable therapy for managing liver health even in individuals who consume alcohol excessively.
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Objective Zinc-α2-glycoprotein (ZAG) is secreted by various organs, such as liver, kidney and adipose tissue, is involved in lipolysis, and may contribute to the pathogenesis of chronic liver disease (CLD). We therefore assessed whether or not ZAG is a surrogate marker for the hepatorenal function, body composition and all causes of mortality, as well as complications, including ascites, hepatic encephalopathy (HE) and portosystemic shunts (PSS) in CLD. Methods Serum ZAG levels were measured in 180 CLD patients upon hospital admission.

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Background/aims: Pemafibrate is a selective peroxisome proliferator-activated receptor α modulator that improves serum alanine aminotransferase (ALT) in dyslipidemia patients. Pemafibrate was reported to reduce ALT in non-alcoholic fatty liver disease (NAFLD) patients, but efficacy was not clearly elucidated due to the small size of previous study populations. Therefore, we explored pemafibrate efficacy in NAFLD patients.

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Article Synopsis
  • Tricuspid regurgitation pressure gradient (TRPG) measurement via echocardiography is critical for diagnosing portopulmonary hypertension (PoPH) in cirrhotic patients, and this study focuses on identifying factors linked to high TRPG levels.
  • Among 486 patients analyzed, 10.5% had TRPG values of 35 mmHg or higher, with factors such as being female, experiencing shortness of breath, and higher levels of brain natriuretic peptide (BNP) being significant indicators.
  • A scoring model was developed to predict high TRPG risk, demonstrating good accuracy and could help select patients who would benefit from further echocardiography investigations.
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Background: Nutritional status and skeletal muscle mass affect the prognosis of hepatocellular carcinoma (HCC). Nutritional status is closely associated with skeletal muscle mass. Here, we investigate the effect of controlling preoperative nutritional status and skeletal muscle mass on the prognosis of HCC after curative treatment.

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Background: Hepatic sarcopenia is one of many complications associated with chronic liver disease (CLD) and has a high mortality rate; however, the liver-muscle axis is not fully understood. Therefore, few effective treatments exist for hepatic sarcopenia, the best of which being branched-chain amino acid (BCAA) supplementation to help increase muscle mass. Our aim was to investigate the molecular mechanism(s) of hepatic sarcopenia focused on bile acid (BA) composition.

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Background: Fragmented cytokeratin 18 (fCK18) is released from damaged hepatocytes undergoing apoptosis and is recognized as a liver condition biomarker. We have developed a highly sensitive serum fCK18 CLEIA and reported that serum levels of this caspase-derived protein were significantly associated with hepatocyte ballooning, thus assisting in the accurate diagnosis of nonalcoholic steatohepatitis (NASH). We aim to investigate serum fCK18 levels in a variety of chronic liver diseases and to explore its potential as a prognostic marker of survival in hepatocellular carcinoma (HCC) patients.

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Introduction/purpose: The gut-liver axis contributes to disease progression, a rise in infection rate, organ failure and a poor overall outcome in chronic liver diseases (CLD). Monitoring of the gut-liver axis is critical in understanding disease status, but biomarkers have not been elucidated. The aim of this study is to determine the level of serum antibodies against in evaluating patients with CLD, including those treated with rifaximin (a minimally absorbed antibiotic), and in patients with alcohol-associated liver disease (ALD).

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Objectives: To identify patients suitable for endoscopic injection sclerotherapy (EIS) by evaluating their portal hemodynamics and liver function.

Methods: We selected 58 patients with esophagogastric varices (EGV) and liver cirrhosis (LC) related to either hepatitis C virus (C) (n = 19), hepatitis B virus (n = 2), alcohol (AL) (n = 20), C + AL (n = 6), non-alcoholic steatohepatitis (n = 6), others (n = 3), or non-LC (n = 2). All patients underwent EIS.

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A 70-year-old man was diagnosed with hepatocellular carcinoma (HCC) with portal vein invasion and lung metastases, for which atezolizumab plus bevacizumab (ATZ/BEV) was initiated. After two months, computed tomography revealed tumor growth accompanied by ascites, right ventricular invasion, exacerbation of the lung metastases, and main portal vein invasion. However, continuation of ATZ/BEV caused remarkable size reductions in all lesions, finally resulting in the disappearance of the vascular invasion and lung metastases after nine cycles of treatment.

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Article Synopsis
  • Caspase-generated fragmented cytokeratin 18 (fCK18) is emerging as a noninvasive biomarker for diagnosing nonalcoholic fatty liver disease (NAFLD), particularly its more severe form, nonalcoholic steatohepatitis (NASH).
  • A new, highly sensitive chemiluminescent enzyme immunoassay utilizing specialized monoclonal antibodies was developed to measure serum fCK18 levels, which showed significant correlation with liver damage and disease severity indicators.
  • Significant increases in serum fCK18 levels were found in individuals with NAFLD compared to healthy individuals, and these levels were especially elevated in patients with NASH, providing strong diagnostic potential validated through various cohort analyses.
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Background: Hepatocellular carcinoma with osteoclast-like giant cells is very rare and has an extremely poor prognosis. Here, we report a case of hepatocellular carcinoma with osteoclast-like giant cells that had a relatively better prognosis.

Case Presentation: A 70-year-old Japanese man with hepatitis B virus-related liver cirrhosis was admitted to our hospital for the treatment of recurrent hepatocellular carcinoma.

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Background: Oxaliplatin is a key drug for the chemotherapy of colorectal cancer; however, it is also known to cause non-cirrhotic portal hypertension. We aimed to identify the characteristics of patients who developed esophagogastric varices (EGVs) after treatment with oxaliplatin.

Methods: This study retrospectively analyzed patients with colorectal cancer who were treated with chemotherapy including oxaliplatin between 2010 and 2016.

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Liver cirrhosis is the final stage of chronic liver disease (CLD) and is associated with high morbidity and mortality. Various complications such as portal hypertension, ascites retention, hepatic encephalopathy, and hepatorenal syndrome deeply affect patient outcome. The most common tools to predict the outcome of a CLD patient include the following: assessing severity of portal hypertension; scoring systems such as the model of end-stage liver disease and Child-Pugh score and blood biomarkers related to complications and/or survival rate.

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Objective The efficacy of tolvaptan, an orally active vasopressin V2-receptor antagonist, has recently been reported in patients with massive ascites unresponsive to conventional diuretics. However, the effect of tolvaptan varies among patients. Recently, the prognostic role of the tolvaptan response in cases of decompensated liver cirrhosis (LC) has been attracting increasing attention.

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Rifaximin (RFX) treatment can attenuate not only hyperammonemia but also translocation and 10-7G values, suggesting that RFX treatment may improve intestinal inflammation and result in better overall survival.

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Aim: Clinical evaluations are generally used to verify the effectiveness of detoxification treatments for alcohol dependence, but new objective biomarkers are essential for accurate diagnosis. We aim to assess the accuracy of carbohydrate-deficient transferrin (%CDT) in a cohort of Japanese patients admitted to a psychiatric hospital specializing in alcohol dependence. In addition, we investigated the kinetics of %CDT during alcohol moderation or cessation.

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Background: Copper (Cu) and zinc (Zn) are essential nutrients and cofactors of enzymatic reactions with their binding partner. Metallothionein (MT) plays an important role in protecting against heavy metals and oxidative injury, however it may also portend drug resistance and a worse prognosis for hepatocellular carcinoma (HCC) patients. The aim of this study was to determine the amount of Cu, Zn, Cu/Zn and MT in evaluating a group of patients with HCC, including those treated with lenvatinib.

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Background And Aim: Copeptin is a stable cleavage product of the arginine vasopressin precursor and is equimolarly secreted with arginine vasopressin. We aimed to assess whether copeptin is the surrogate marker for complications related chronic liver disease (CLD) such as ascites, hepatic encephalopathy (HE), portosystemic shunts (PSSs), and all causes of mortality in CLD.

Methods: Serum copeptin was measured in 170 CLD patients upon hospital admission.

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Aim: Hypozincemia is associated with the progression of chronic liver diseases, but it is unknown whether hypozincemia promotes human hepatocarcinogenesis. Our aim is to evaluate the serum zinc levels in liver cirrhosis (LC) patients and clarify the relationship between the serum zinc levels and the development of hepatocellular carcinoma (HCC).

Methods: Cirrhotic patients without HCC (n = 299) were enrolled from 14 medical institutes in Japan as a multicenter prospective study (No.

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