Publications by authors named "Kunihiko Murase"

Introduction: Lower handgrip strength is a manifestation of sarcopenia and frailty, and has been reported to be associated with cerebral microbleeds (CMBs), which appear on T2-weighted magnetic resonance scans as low-intensity spots. However, the underlying mechanism is unknown. We hypothesized that vascular endothelial injury could be the common factor in loss of handgrip strength and CMBs.

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infection is a common and neglected public health problem in many areas of the world. Here we report the case of a 21-year-old woman who emigrated from Cambodia to Japan and presented with swelling of the right supraclavicular region of 2 months' duration. She had no other symptoms.

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Introduction. Family physicians have more opportunities to attend athletic competitions as medical staff at first-aid centers because of the increasing popularity of endurance sports. Case.

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Object: Anemia and leukopenia caused by copper deficiency are well-documented consequences of long-term total parenteral nutrition. We measured the serum copper levels of bed-ridden patients receiving enteral feeding, and evaluated optical and ultrastructural features of bone marrow before and after copper supplementation.

Patients And Methods: Serum samples were obtained from 15 bed-ridden elderly patients receiving tube feeding (TF) and 10 age-matched bed-ridden patients who took food orally (CO), and the copper ceruloplasmin concentration of each sample was measured.

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Aim: To investigate the frequency and distribution of N-acetyltransferase 2 (NAT2) and uridine 5'-diphosphate (UDP)-glucuronosyltransferase 1A7 (UGT1A7) genes in patients with ulcerative colitis (UC) and Crohn's disease (CD).

Methods: Frequencies and distributions of NAT2 and UGT1A7 SNPs as well as their haplotypes were investigated in 95 patients with UC, 60 patients with CD, and 200 gender-matched, unrelated, healthy, control volunteers by PCR-restriction fragment length polymorphism (RFLP), PCR-denaturing high-performance liquid chromatography (DHPLC), and direct DNA sequencing.

Results: Multiple logistic regression analysis revealed that the frequency of haplotype, NAT2*7B, significantly increased in CD patients, compared to that in controls (P = 0.

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Although estrogen is implicated in the regulation of mammalian intestinal function, the presence and the distribution of estrogen receptor (ER)-positive cells in the intestine are still controversial. The present study was designed to localize ERalpha- and ERbeta-expressing cells in female and male mouse intestines immunohistochemically under various estrogen conditions, especially in female mice, ovariectomized as well at various phases of the estrous cycle. Western blot analysis detected both ERalpha (66-kDa band) and ERbeta (56-kDa band).

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Anemia is a common problem that results from various causes in patients with ulcerative colitis (UC), but there is little information on the association of UC with pure red cell aplasia (PRCA). We describe the first case of parvovirus-induced PRCA in UC. A 28-year-old woman with chronic UC was admitted to the hospital for treatment of active pancolitis.

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Breast cancer resistance protein (BCRP/ABCG2) of an ATP-binding cassette half-transporter confers resistance against mitoxantrone and camptothecin derivatives of topotecan and irinotecan. Novobiocin, a coumermycin antibiotic, is known to enhance anticancer drug sensitivity of cancer cells in vitro and in vivo, the mechanism of which remains undetermined. Here we focused on drug efflux pump and examined whether novobiocin reversed drug resistance in multidrug-resistant cells highly expressing BCRP.

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Extraintestinal manifestations of ulcerative colitis (UC) are well known, but immunologically mediated hematological diseases are relatively rare. We describe two cases of immune thrombocytopenic purpura (ITP) associated with preexisting UC. Our patients had typical symptoms of UC, and endoscopy showed pancolitis.

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A 48-year-old woman was admitted because of spiking high fever, sore throat, and jaundice. A diagnosis was made of adult-onset Still disease (AOSD) presenting with acute hepatitis and very high serum ferritin levels (32,240 ng/mL), and she was treated with 2 courses of pulse therapy of methylprednisolone (2 g/day for 3 days) followed by 40 mg/day prednisolone. Subsequently, the serum level of ferritin decreased, but serum total bilirubin increased to 17.

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We describe two cases of adult T-cell leukemia/lymphoma (ATLL) with terminal ileal involvement. The first case, a 71-year-old man with lymphoma subtype of ATLL, had a polypoid lesion in the terminal ileum, in addition to a duodenal mass. The second case, a 58-year-old woman with lymphoma subtype of ATLL, had an irregular ulcerative lesion in the terminal ileum and multiple ulcers throughout the stomach.

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Heat shock protein (Hsp) 70 and Hsp 40 are stress proteins that cooperate as chaperones in mammalian cells. The present study was designed to determine the expression levels of Hsp 70 and Hsp 40 in colorectal cancer by immunohistochemistry and Western blot analysis. Among 50 colorectal cancer tissues studied, 80% and 14% of tumors showed specific immunoreactivity to Hsp 70 and Hsp 40, respectively.

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Background/aims: 13C-EUBT (endoscopic 13C-urea breath test), that combines the conventional urea breath test with endoscopy, provides excellent accuracy for detection of H. pylori. Recently, a simpler, less expensive and isotope-selected nondispersive infrared spectrometer has been developed for the urea breath test.

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Objectives: An enzyme-linked immunosorbent assay (ELISA) using MESACUP-2 Test Mitochondria M2 kit (new-M2 ELISA) has recently become commercially available. The aim of this study was to evaluate the clinical utility of this newly developed ELISA for the diagnosis of primary biliary cirrhosis (PBC).

Design And Methods: We tested the immunoreactivity of sera from 82 Japanese PBC patients to the 2-oxo-acid dehydrogenase complex (2-OADC) enzymes by indirect immunofluorescence, enzyme inhibition assay using commercially available TRACE Enzymatic Mitochondrial Antibody (M2) Assay (EMA) kit, commercial ELISAs using MESACUP Mitochondria M2 kit (old-M2 ELISA) and new-M2 ELISA, and immunoblotting on bovine heart mitochondria.

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Background: In contrast to the growing amount of data concerning proton pump inhibitor-based triple therapy for Helicobacter pylori infection, it is still controversial whether proton pump inhibitor can be replaced by H2 receptor antagonist without compromising efficacy. Lafutidine is a novel potent H2 receptor antagonist with gastroprotective activities such as enhancement of gastric mucosal blood flow.

Methods: 122 outpatients with positive cultures and subsequent successful cultivation of H.

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Objective: Chemokines play a key role in the pathogenesis of various inflammatory conditions. However, there is little information on their profile in reflux esophagitis (RE). We sought to study esophageal mucosa levels of chemokines in RE.

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A 69-year-old-woman presented with acute epigastric pain, nausea, vomiting and heartburn. Endoscopy disclosed acute gastric mucosal lesions including mucosal edema, erosions, and ulcers with blood crusts in the antrum. Touch cytology and histological assessment obtained from the affected mucosa revealed acute neutrophilic gastritis and single longer and more coiled organisms than Helicobacter pylori, suggesting Helicobacter heilmannii.

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Objective: The endoscopic (13)C-urea breath test ((13)C-EUBT), which combines the urea breath test (UBT) with endoscopy, provides high accuracy for the detection of Helicobacter pylori. This study was conducted to determine whether the (13)C-EUBT using low doses of urea and short sampling times could preserve accuracy in the management of H. pylori infection.

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Background: It has recently been proposed that disturbed gastric adaptive relaxation may play a role in functional dyspepsia (FD). However, the effect of Helicobacter pylori infection, which may be one of multiple factors associated with FD, on gastric relaxation is not clear. The aim of this study was to clarify the influence of H.

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Background And Aims: Fatty liver is not uncommon in many countries, including Japan, and is mainly caused by alcohol usage and obesity. The aim of this study was to determine the incidence and causative factors of fatty liver in Japanese adults.

Methods: The clinical characteristics of 3432 Japanese adults who visited our hospital between January and December 2000 for thorough medical examinations were recorded including sex, age, body mass index (BMI), percentage body fat measurement using a bipedal bioimpedance instrument, history of alcohol intake, blood pressure, serum levels of aspartate aminotransferase, alanine aminotransferase (ALT), gamma-glutamyl transpeptidase, total cholesterol, triglyceride, uric acid, fasting blood glucose (FBG), and liver status by ultrasonography (USG).

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Argon plasma coagulation (APC) has been used extensively for a wide range of indications in gastrointestinal endoscopy. We describe a case of haemorrhagic radiation proctitis treated successfully with APC. A 54-year-old Japanese woman presented with daily rectal bleeding 4 months after cessation of radiotherapy for uterine cancer.

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Aims: MRL/Mp-lpr/lpr (MRL/lpr) mice spontaneously develop lymphadenopathy, hypergammaglobulinaemia, serum auto-antibodies, and a generalised auto-immune disease including glomerulonephritis and arthritis, and have been used as a model for the study of systemic lupus erythematosus. Recently, MRL/lpr mice were also reported as a potentially suitable animal model of primary biliary cirrhosis (PBC). The aim of this study was to determine the suitability of MRL/Mp-lpr/lpr (MRL/lpr) mice as an experimental auto-immune-mediated cholangitis model for PBC.

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TS-1 is a new, oral anticancer agent composed of two modulators, gimeracil (CDHP) and oteracil potassium (Oxo) are mixed with tegafur in a ratio of 1:0.4:1. We report one case of advanced gastric cancer with lung and lymph node metastases that completely responded to TS-1.

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