Abstract:
AIM:To evaluate the effects of betaine on the ethanol-induced secretion of IGF-I and IGFBP-1 using radioimmunoassay and Western blotting, respectively, in primary cultured rat hepatocytes. METHODS:Hepatocytes isolated from male Sprague-Dawley rats were incubated with various concentrations of ethanol and PD98059 procedures. The hepatocytes were also treated with different doses of betaine (10(-5), 10(-4), and 10(-3) mol/L). We measured IGF-I and IGFBP-1 using radioimmunoassay and Western blotting, respectively. RESULTS:The ethanol-induced inhibition of IGF-I secretion was attenuated by betaine in a concentration-dependent manner in primary cultured rat hepatocytes. At 10(-3) mol/L, betaine significantly increased IGF-I secretion but decreased IGFBP-1 secretion. In addition, p42/44 mitogen-activated protein kinase (MAPK) activity was accelerated significantly from 10 min to 5 h after treatment with 10(-3) mol/L betaine. Furthermore, the changes in IGF-1 and IGFBP-1 secretion resulting from the increased betaine-induced p42/44 MAPK activity in primary cultured rat hepatocytes was blocked by treatment with the MAPK inhibitor PD98059. Betaine treatment blocked the ethanol-induced inhibition of IGF-I secretion and p42/44 MAPK activity, and the ethanol-induced increase in IGFBP-1 secretion. CONCLUSION:Betaine modulates the secretion of IGF-I and IGFBP-1 via the activation of p42/44 MAPK in primary cultured rat hepatocytes. Betaine also alters the MAPK activations induced by ethanol.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Lee MS,Kim MS,Park SY,Kang CWdoi
10.3748/wjg.v12.i11.1718keywords:
subject
Has Abstractpub_date
2006-03-21 00:00:00pages
1718-22issue
11eissn
1007-9327issn
2219-2840journal_volume
12pub_type
杂志文章abstract:AIM:To evaluate the role of RARalpha gene in mediating the growth inhibitory effect of all-trans retinoic acid (ATRA) on gastric cancer cells. METHODS:The expression levels of retinoic acid receptors (RARs) in gastric cancer cells were detected by Northern blot. Transient transfection and chlorophenicol acetyl transfe...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v7.i5.662
更新日期:2001-10-01 00:00:00
abstract:AIM:To evaluate clinical presentation, etiology, complications and response to treatment in elderly patients with acute cholangitis. METHODS:Demographics, etiology of biliary obstruction, clinical features, complications and associated systemic diseases of 175 patients with acute cholangitis were recorded. Endoscopic ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i40.6551
更新日期:2006-10-28 00:00:00
abstract:AIM:To clone and express the antigen of monoclonal antibody (MAb) PD4 for further investigation of its function. METHODS:MGC803 cDNA expression library was constructed and screened with PD4 as probes to clone the antigen. After failed in the library screening, immunoprecipitation and SDS-polyacrylamide gel electrophor...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i10.2164
更新日期:2003-10-01 00:00:00
abstract::Cholelithiasis occurs infrequently in the paediatric age group. Hereditary spherocytosis, sickle cell anaemia and thalassemia are the haemolytic disorders most commonly associated with development of gall stones in paediatric age group. The question is whether an isolated episode of haemolysis can cause gallstones. ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i14.2291
更新日期:2006-04-14 00:00:00
abstract::AIM:To discuss the effect of surgical procedures on the prognosis of patients of bile duct cancer and their indications.METHODS:A retrospective analysis was made for 52 cases of hepatoportal bile duct cancer treated from January 1991 to December 1996. All the cases were classified according to the modified Bismuth-Cor...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
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更新日期:1999-04-01 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 社论,评审
doi:10.3748/wjg.v22.i6.1925
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journal_title:World journal of gastroenterology
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doi:10.3748/wjg.v26.i32.4833
更新日期:2020-08-28 00:00:00
abstract::Acute pancreatitis (AP) is an acute inflammatory disease of the exocrine pancreas. In Japan, nationwide epidemiological surveys have been conducted every 4 to 5 years by the Research Committee of Intractable Pancreatic Diseases, under the support of the Ministry of Health, Labour, and Welfare of Japan. We reviewed the...
journal_title:World journal of gastroenterology
pub_type: 社论
doi:10.3748/wjg.v22.i28.6335
更新日期:2016-07-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,meta分析
doi:10.3748/wjg.v25.i37.5711
更新日期:2019-10-07 00:00:00
abstract:AIM:To explore the quantitative analysis of diffusion-weighted magnetic resonance imaging (DWMRI) in differential diagnosis of focal hepatic lesions. METHODS:DWMRI was performed in 149 hepatic lesions, including hepatocellular carcinoma (34 cases), hepatic metastases (37 cases), cavernous hemangioma (42 cases), hepati...
journal_title:World journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.3748/wjg.v11.i41.6535
更新日期:2005-11-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i16.2361
更新日期:2004-08-15 00:00:00
abstract::Colorectal cancer incidence and mortality in patients younger than 50 years are increasing, but screening before the age of 50 is not offered in Europe. Advanced-stage diagnosis and mortality from colorectal cancer before 50 years of age are increasing. This is not a detection-bias effect; it is a real issue affecting...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v25.i21.2565
更新日期:2019-06-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i25.3899
更新日期:2005-07-07 00:00:00
abstract:AIM:To evaluate the value of plasma N-terminal pro-brain natriuretic peptide (NT-proBNP) level for predicting postoperative atrial fibrillation (AF) in patients undergoing surgery for esophageal carcinoma. METHODS:NT-proBNP levels were measured in 142 patients 24 h before and 1 h after surgery for esophageal carcinoma...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.14.2582
更新日期:2008-04-28 00:00:00
abstract:AIM:To explore recent trends, modes of diagnosis, ethnic distribution and the mortality to incidence ratio of primary liver cancer by subtypes in England and Wales. METHODS:We obtained incidence (1979-2008) and mortality (1968-2008) data for primary liver cancer for England and Wales and calculated age-standardised in...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i6.1544
更新日期:2014-02-14 00:00:00
abstract::A 41-year-old man presented with severe gastric ulceration 3 mo after beginning treatment with atorvastatin 20 mg once daily for hypercholesterolemia. The patient was not taking any ulcerogenic drugs and had no evidence of Helicobacter pylori infection. Proton pump inhibitor therapy was initiated and atorvastatin was ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i20.3159
更新日期:2005-05-28 00:00:00
abstract::AIM:To explore the status of extrahepatic hepatitis C virus (HCV) infection and replication in hepatitis C patients,and its potential implication in HCV infection and pathogenicity.METHODS:By reverse-transcriptase poly-merase chain reaction (RT-PCR),in situ hybridization (ISH) and immunohis-tochemistry, HCV RNA, HCV r...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v6.i6.805
更新日期:2000-12-01 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v19.i6.790
更新日期:2013-02-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i1.49
更新日期:2012-01-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i40.14904
更新日期:2014-10-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i32.4278
更新日期:2012-08-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i18.2637
更新日期:2004-09-15 00:00:00
abstract::We report the first case of single port laparoscopic right hemicolectomy for advanced colon cancer. An abdominal 3 cm length incision was made via the umbilicus. A small wound retractor and a surgical glove were used as a single port. All soft tissue anterior to the superior mesenteric vein was completely removed and ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i2.275
更新日期:2010-01-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v5.i1.31
更新日期:1999-02-01 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i9.2121
更新日期:2003-09-01 00:00:00
abstract::Sorafenib, a potent multikinase inhibitor, lead to a significant improvement in progression free survival and overall survival in patients with advanced hepatocellular carcinoma (HCC). Though sorafenib has proven its efficacy in advanced stage HCC, there are limited reports on the role of sorafenib allowing for curati...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v21.i8.2568
更新日期:2015-02-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v22.i8.2621
更新日期:2016-02-28 00:00:00
abstract::Dilatation of the colon and the rectum, which is not attributable to aganglionosis, is a rare finding and can be the result of intractable chronic constipation. We report a rare case of a 29-year-old male patient with impressive megacolon, in whom Hirschsprung's or Chagas disease was ruled out. In the present case, di...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i48.7686
更新日期:2005-12-28 00:00:00
abstract:AIM:To evaluate the Z-line visualization by the PillCam SB2 using three different ingestion protocols. METHODS:Ninety consecutive patients undergoing small bowel capsule endoscopy (SBCE) between January and May 2008 were included in the study. They swallowed the capsule in the standing (Group A = 30), supine (Group B ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,随机对照试验
doi:10.3748/wjg.v16.i1.63
更新日期:2010-01-07 00:00:00
abstract:AIM:To study the effect of rosiglitazone, which is a ligand of peroxisome proliferator-activated receptor gamma (PPARgamma), on the expression of PPARgamma in hepatic stellate cells (HSCs) and on the biological characteristics of HSCs. METHODS:The activated HSCs were divided into three groups: control group, 3 micromo...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i30.4735
更新日期:2005-08-14 00:00:00