Abstract:
BACKGROUND:NADPH oxidase 1 (Nox1) is preferentially expressed in the colon, but its functional role is not fully understood. This study was designed to elucidate a potential role of Nox1 in inflammation of the colon. METHODS:Superoxide production by T84 cells was measured by the cytochrome c method. Protein and mRNA levels of Nox1 and Nox organizer 1 (NOXO1) in the cells were measured by real-time reverse transcriptase PCR and Western blotting, respectively. Expression of Nox1, Nox2, dual oxidase 2 (Duox2), NOXO1, interferon (IFN)-gamma, and tumor necrosis factor (TNF)-alpha mRNAs was measured in proximal, middle, and distal portions of colonic mucosas from male wild-type C57BL/6J and interleukin (IL)-10 knockout mice at 6, 10, and 16 weeks of age. Grading of inflammation was done by scoring histological changes. RESULTS:IL-10 significantly inhibited IFN-gamma- or TNF-alpha-induced up-regulation of superoxide-producing activity in T84 cells by suppressing expression of Nox1 mRNA and protein. IL-10 also inhibited TNF-alpha-stimulated induction of NOXO1 and p38 MAPK phosphorylation. Levels of Nox1, but not Nox2 or Duox2 mRNA, was age-dependently increased following a gradient with low levels in the proximal colon and high levels in the distal colon of the wild-type mice. The absence of IL-10 significantly facilitated Nox1 expression in association with increased IFN-gamma mRNA expression before the development of spontaneous colitis and age-dependently accelerated their mRNA expression. CONCLUSIONS:IL-10 may be a possible down-regulator of the Nox1-based oxidase in the colon, suggesting a potential role of reactive oxygen species (ROS) derived from Nox1-based oxidase in inflammation of the colon.
journal_name
J Gastroenteroljournal_title
Journal of gastroenterologyauthors
Kamizato M,Nishida K,Masuda K,Takeo K,Yamamoto Y,Kawai T,Teshima-Kondo S,Tanahashi T,Rokutan Kdoi
10.1007/s00535-009-0119-6subject
Has Abstractpub_date
2009-01-01 00:00:00pages
1172-84issue
12eissn
0944-1174issn
1435-5922journal_volume
44pub_type
杂志文章abstract:BACKGROUND:In elderly patients with superficial esophageal squamous cell carcinoma (ESCC), the optimal treatment strategy after non-curative endoscopic submucosal dissection (ESD) remains unclear. We aimed to evaluate the validity of additional treatments after non-curative ESD and post-ESD survival predictors in elder...
journal_title:Journal of gastroenterology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00535-019-01583-9
更新日期:2019-10-01 00:00:00
abstract::Fulminant hepatic failure (FHF) usually has a fatal prognosis without liver transplantation. We describe the case of a woman who developed FHF, and was evaluated as a candidate for liver transplantation, but who was cured without transplantation through intensive medical care that included glucagon-insulin therapy, me...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s005350170103
更新日期:2001-05-01 00:00:00
abstract::Inflammatory cells in the gastric epithelium and direct cell damage are important effects of H. pylori infection in causing gastroduodenal diseases. The aim of this study was to determine whether H. Pylori possessing the cagA gene and vacuolating cytotoxin activity (cagA+/tox+) has these toxigenicities. The detection ...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract:PURPOSE:Autoimmune pancreatitis (AIP) is a unique form of pancreatitis and can be complicated with various extrapancreatic lesions. Little is known about the long-term clinical course of AIP. Here we aimed to document the clinical course of AIP. METHODS:For this study, we recruited 21 patients, averaging 66.5 years in...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-009-0049-3
更新日期:2009-01-01 00:00:00
abstract::One complication of choledochal cyst in adulthood is the development of secondary carcinoma, usually well-differentiated adenocarcinoma. We report a case of extrahepatic bile duct carcinoma associated with choledochal cyst and presenting predominantly sarcomatous features. The patient was a 52-year-old female who pres...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/BF02365455
更新日期:1994-10-01 00:00:00
abstract::In Japan, Kaposi's sarcoma (KS) is a very rare neoplasm. However, it does occur as one of the complications in patients with acquired immunodeficiency syndrome (AIDS). AIDS-related KS commonly involves the skin, lymph nodes, and gastrointestinal tract. Hepatic KS is sometimes observed in AIDS patients at autopsy, but ...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/BF02348677
更新日期:1995-04-01 00:00:00
abstract:BACKGROUND:Helicobacter pylori induces chronic inflammation and intestinal metaplasia (IM) through genetic and epigenetic changes and activation of intracellular signaling pathways that contribute to gastric carcinogenesis. However, the precise mechanism of IM in gastric carcinogenesis has not been fully elucidated. We...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-016-1176-2
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:Hepatitis C virus (HCV) core protein is known to cause oxidative stress and alter apoptosis pathways. However, the apoptosis results are inconsistent, and the real significance of oxidative stress is not well known. The aim of this study was twofold. First, we wanted to confirm whether core-induced oxidative...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-005-1738-1
更新日期:2006-03-01 00:00:00
abstract::Focal nodular hyperplasia (FNH) is a benign lesion of the liver which usually presents with one or two localizations. We report a patient with history of resection of a biliary cyst, and who had been taking oral contraceptives for the past 18 years, who had multiple localizations of FNH (more than 30 lesions). The lar...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s005350050198
更新日期:1998-12-01 00:00:00
abstract:BACKGROUND:The gap junction (GJ) plays important roles in the maintenance of tissue homeostasis, the control of cell growth and differentiation, and the prevention of experimental hepatocarcinogenesis. In this study, we examined the relationship between the expression of the GJ protein connexin (Cx) 32 in 24 human hepa...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-003-1386-2
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND:The T-helper (Th)1 immune reaction is essential for the eradication of hepatitis C virus (HCV) during interferon (IFN) therapy in patients with chronic hepatitis C. Osteopontin is a cytokine crucial for the initiation of the Th1 response. Recently, we identified four single-nucleotide polymorphisms (SNPs) in...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-005-1558-3
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND AND AIMS:Insulin-like growth factor (IGF)-I receptor (IGF-IR) signaling plays important parts in both the tumorigenicity and progression of digestive/gastrointestinal malignancies. In this study, we sought to test the effectiveness of a practical approach to blocking IGF-IR signaling using RNA interference d...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-009-0151-6
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:Patients with ulcerative colitis (UC) exhibit overproduction of reactive oxygen species (ROS) and imbalance of colonic microflora. We previously developed a novel redox nanoparticle (RNP(O)), which effectively scavenged ROS in the inflamed mucosa of mice with dextran sodium sulfate (DSS)-induced colitis afte...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-013-0836-8
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Mucosal breaks induced by gastroesophageal reflux of gastric contents were more frequently found on the right anterior wall of the lower esophagus. Bleeding from esophageal varices may be also derived from gastroesophageal reflux. The circumferential location of the ruptured esophageal varices was evaluated ...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-008-2232-3
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:It remains unknown whether Kupffer-phase images in Sonazoid-enhanced ultrasonography (US) can be used to predict hypervascularization of borderline lesions. Therefore, we aimed to clarify whether Kupffer-phase images in Sonazoid-enhanced ultrasonography can predict subsequent hypervascularization in hypovasc...
journal_title:Journal of gastroenterology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00535-015-1094-8
更新日期:2016-02-01 00:00:00
abstract:BACKGROUND:Combination therapy of intravenous hepatitis B immunoglobulin (ivHBIG) and nucleos(t)ide (NA) analogues is the best post-liver transplantation (LT) prophylactic measure for hepatitis B virus (HBV). However, to reduce the long-term drawbacks of ivHBIG, we evaluated the efficacy of sequential entecavir (ETV) m...
journal_title:Journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.1007/s00535-013-0761-x
更新日期:2013-12-01 00:00:00
abstract::To investigate autonomic nervous function during upper gastrointestinal endoscopy, we analyzed R-R interval variability from electrocardiograms obtained during endoscopy. Holter electrocardiogram recordings were made before and after premedication, and during endoscopy. Time- and frequency-domain analyses of heart rat...
journal_title:Journal of gastroenterology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s005350070018
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:The search is on to find more effective drug regimens for patients with severe ulcerative colitis, as conventional drugs such as sulfasalazine and its congeners fail to prevent relapse in a significant number of patients. Azathioprine has also been reported to be useful as a steroid-sparing drug in patients ...
journal_title:Journal of gastroenterology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s005350200034
更新日期:2002-01-01 00:00:00
abstract::A 65-year-old woman was admitted to our hospital with the diagnosis of gallbladder tumor. Right extended hepatic lobectomy plus lymph node dissection of the hepatoduodenal ligament and left hepaticojejunostomy with Roux-en-Y reconstruction was performed in July, 1993. The gallbladder tumor was histologically proven to...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/BF02936968
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND:Once-daily, orally administered, co-formulated glecaprevir (NS3/4A protease inhibitor) and pibrentasvir (NS5A inhibitor) (G/P) demonstrated pangenotypic activity and high sustained virologic response (SVR) rates in studies outside Japan. Here we report safety and efficacy in a subset of Japanese patients wit...
journal_title:Journal of gastroenterology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00535-017-1396-0
更新日期:2018-04-01 00:00:00
abstract::The purpose of the present study was to elucidate the effect of hepatic reflow following ischemia on the remnant liver after hepatectomy with occluded hepatic blood inflow in dogs with obstructive jaundice. When 40% hepatectomy was performed with 10-min occlusion of hepatic blood inflow in dogs with obstructive jaundi...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/BF02355028
更新日期:1996-06-01 00:00:00
abstract::We simultaneously recorded gastric emptying of radio-opaque markers (ROMs) and monitored serial changes in plasma acetaminophen (AAP) levels to demonstrate the relationship between the ROM and the AAP methods, and we investigated the effect of a single intravenous dose of erythromycin (EM) on gastric emptying in healt...
journal_title:Journal of gastroenterology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02936948
更新日期:1997-12-01 00:00:00
abstract::In this study, we used magnetic resonance (MR) imaging to measure portal blood flow in 12 healthy controls and 17 cirrhotics while they were breath-holding after inspiration and after expiration. We then compared the results with measurements made during normal respiration in the healthy controls and cirrhotics. Blood...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s005350050381
更新日期:1999-10-01 00:00:00
abstract:BACKGROUND:Hepatocellular carcinoma (HCC) caused by hepatitis B virus (HBV) often recurs after surgical or medical treatment. METHODS:Eighty consecutive patients with HBV-positive cirrhosis and HCC who underwent potentially curative ablation for HCC were analyzed. Eleven patients received long-term interferon (IFN) th...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-006-1912-0
更新日期:2006-12-01 00:00:00
abstract::We report a case of pancreas head carcinoma associated with fat replacement of the body and tail. A 68-year-old man presented with obstructive jaundice and was admitted to our hospital. Ultrasonography and computed tomography showed pancreas head tumor with a neighboring cystic lesion and fatty replacement of parenchy...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-003-1250-4
更新日期:2004-01-01 00:00:00
abstract::Cytosolic phospholipase A2 (PLase A2) is activated by low Ca2+ concentrations and translocates from the cytosol to the cell membrane, releasing arachidonic acid; the arachidonic acid cascade then leads to the production of many inflammatory mediators. The aim of this study, accordingly, was to investigate the role of ...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s005350050215
更新日期:1999-02-01 00:00:00
abstract::Using commercial quantitative assays, quantitative hepatitis B surface antigen (qHBsAg) has improved our understanding and management of chronic hepatitis B (CHB). The HBsAg level is highest in the immune tolerance phase, starts to decline during the immune clearance phase, and decreases slowly but progressively after...
journal_title:Journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.1007/s00535-012-0668-y
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Linked color imaging (LCI) increases the visibility of early gastric cancers, which may be associated with characteristic findings including background purple mucosae. These lesions are found in areas of chronic gastritis and surrounding mucosa. The aim of this study is to objectively characterize these lesi...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-018-1515-6
更新日期:2019-05-01 00:00:00
abstract::We describe a gastric carcinoma cell line that has been maintained in vitro for more than 10 years and retains the capacity to produce a large amount of alpha-fetoprotein. This cell line was isolated from a metastatic lymph node of a 63-year-old male patient with advanced gastric carcinoma (T2N3P0H0M0) who showed high...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/BF02367784
更新日期:1995-10-01 00:00:00
abstract:OBJECTIVES:To provide updated clinico-epidemiological information on chronic pancreatitis (CP) in Japan. METHODS:We conducted a two-stage nationwide epidemiological survey; the number of CP patients was estimated in the first-stage survey, and their clinical features were examined in the second-stage survey. We survey...
journal_title:Journal of gastroenterology
pub_type: 杂志文章
doi:10.1007/s00535-020-01704-9
更新日期:2020-11-01 00:00:00