Abstract:
:Multiple studies have demonstrated alterations in the intestinal microbial community (termed the microbiome) in Crohn's disease (CD) and several lines of evidence suggest these changes may have a significant role in disease pathogenesis. In active and quiescent disease, both the faecal and mucosa-associated microbiome are discordant with matched controls with reduced biodiversity, changes in dominant organisms and increased temporal variation described. Mucosa-associated adherent, invasive Escherichia coli (E. coli) (AIEC), pro-inflammatory and resistant to killing by mucosal macrophages, appear to be particularly important. AIEC possess several virulence factors which may confer pathogenic potential in CD. Type-1 pili (FimH) allow adherence to intestinal cells via cell-surface carcinoembryonic antigen-related cell adhesion molecules and possession of long polar fimbrae promotes translocation across the intestinal mucosa via microfold (M)-cells of the follicle-associated epithelium. Resistance to stress genes (htrA, dsbA and hfq) and tolerance of an acidic pH may contribute to survival within the phagolysosomal environment. Here we review the current understanding of the role of mucosa-associated E. coli in Crohn's pathogenesis, the role of the innate immune system, factors which may contribute to prolonged bacterial survival and therapeutic strategies to target intracellular E. coli.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Tawfik A,Flanagan PK,Campbell BJdoi
10.3748/wjg.v20.i27.8751subject
Has Abstractpub_date
2014-07-21 00:00:00pages
8751-63issue
27eissn
1007-9327issn
2219-2840journal_volume
20pub_type
杂志文章,评审abstract:AIM:To investigate the effects of restraint stress on chronic colitis in interleukin (IL)-10 deficient (IL-10(-/-)) mice. METHODS:The first experiment compared the effect of restraint stress on the development of intestinal inflammation in wild-type and IL-10(-/-) mice. Both wild-type and IL-10(-/-) mice were physical...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v21.i28.8580
更新日期:2015-07-28 00:00:00
abstract:AIM:To investigate the predictive clinical value of in vitro 3-(4,5-dimethylthiazolyl-2)-2, 5-diphenyltetrazolium bromide (MTT) assay for directing chemosensitivity in patients with gastric cancer. METHODS:Results of a total of 353 consecutive patients with gastric cancer treated with MTT-directed chemotherapy or phys...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.14.3064
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abstract:AIM:To evaluate the serum concentration of antimitochondrial antibodies (AMAs) as a prognostic indicator of progressive primary biliary cirrhosis (pPBC). METHODS:Serum concentrations of AMA subtypes (anti-M2, anti-M4, and anti-M9), biochemical indices of liver function and Mayo risk factor (MRF) were determined in 30 ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i36.5706
更新日期:2005-09-28 00:00:00
abstract:AIM:To evaluate the full-spectrum endoscopy (FUSE) colonoscopy system as the first report on the utility thereof in a Korean population. METHODS:We explored the efficacy of the FUSE colonoscopy in a retrospective, single-center feasibility study performed between February 1 and July 20, 2015. A total of 262 subjects (...
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:AIM:To evaluate the efficacy of amantadine plus interferon-alpha and ribavirin in non-responder patients with chronic hepatitis C. METHODS:Twenty-six non-responder patients received the regimen of IFN-alpha-2a at a dose of 6 million units three times a week, 1 000-1 200 mg of ribavirin daily, and 200 mg of amantadine ...
journal_title:World journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.3748/wjg.v11.i4.580
更新日期:2005-01-28 00:00:00
abstract:AIM:To observe expression of CD14 protein and CD14 gene in rat liver sinusoidal endothelial cells (LSECs) during endotoxemia, and the role of CD14 protein in the activation of lipopolysaccharide (LPS)-induced LSECs. METHODS:Wistar rat endotoxemia model was established first by injection of a dose of LPS (5mg/kg, Esche...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v8.i3.551
更新日期:2002-06-01 00:00:00
abstract:AIM:To determine the incidence of brain metastasis in a contemporary group of patients with carcinoma of the esophagus. METHODS:Retrospective analysis of 53 patients with esophageal carcinoma who received radiotherapy as a component of treatment between 1998 and 2007, including patient and tumor characteristics, and s...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v17.i19.2407
更新日期:2011-05-21 00:00:00
abstract:AIM:To explore the role of heat shock protein-90 (HSP-90) for nitrergic vasorelaxation in the splanchnic circulation in rats with and without portal hypertension. METHODS:Neuronal nitric oxide synthase (nNOS) and HSP-90 were analyzed by immunofluorescence, western blotting and co-immunoprecipitation in the mesenteric ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i15.1837
更新日期:2010-04-21 00:00:00
abstract:AIM:To investigate the ability of hexahydrocurcumin (HHC) to enhance 5-fluorouracil (5-FU) in inhibiting the growth of HT-29 cells by focusing on cyclooxygenase (COX)-2 expression. METHODS:Antiproliferative effects of HHC and 5-FU, alone and in combination, on growth of HT-29 human colon cancer cells were assessed usi...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i19.2383
更新日期:2012-05-21 00:00:00
abstract::The incidence of gastric cancer remains high in South Korea. Upper gastrointestinal (GI) endoscopy, i.e., esophagogastroduodenoscopy (EGD), has a higher diagnostic specificity and sensitivity than the upper GI series. Additionally, EGD has the ability to biopsy, through taking a tissue of the pathologic lesion. Succes...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v21.i3.759
更新日期:2015-01-21 00:00:00
abstract::AIM:To infect mice with Helicobacter pylori and detect immune response against two form of H. pylori.METHODS:An isolate of H. pylori obtained from a patient with gastric cancer was used to infect mice. Fifty mice were divided into eight groups. Two groups served as negative control without any inoculation and internal...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v4.i6.485
更新日期:1998-12-01 00:00:00
abstract:AIM:To systematically investigate if cGMP/cGMP-dependent protein kinase G (PKG) signaling pathway may participate in dendroaspis natriuretic peptide (DNP)-induced relaxation of gastric circular smooth muscle. METHODS:The content of cGMP in guinea pig gastric antral smooth muscle tissue and perfusion solution were meas...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.14.5461
更新日期:2008-09-21 00:00:00
abstract:AIM:To evaluate the clinical significance of oxidative stress markers in patients with hepatitis C virus (HCV)-related hepatocellular carcinoma (HCC). METHODS:Sixty-four consecutive patients who were admitted to Kagoshima University Medical and Dental Hospital were enrolled in this retrospective study. All patients ha...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v17.i44.4890
更新日期:2011-11-28 00:00:00
abstract:AIM:To analyze 67 cases of splenic abscess in a medical center of Taiwan during a period of 19 years. METHODS:From January 1986 to December 2004, a total of 67 patients with splenic abscess were enrolled for the retrospective study. The clinical characteristics, underlying diseases, organism spectra, therapeutic metho...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i3.460
更新日期:2006-01-21 00:00:00
abstract:AIM:To compare the outcomes of concomitant cholangiocarcinoma (C-CCA) and subsequent cholangiocarcinoma (S-CCA) associated with hepatolithiasis. METHODS:From December 1987 to December 2007, 276 patients underwent hepatic resection for hepatolithiasis in Changhua Christian Hospital. Sixty-five patients were excluded du...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v19.i3.375
更新日期:2013-01-21 00:00:00
abstract:AIM:To identify the diagnostic value of colonoscopy for diverticulosis as determined by barium enema. METHODS:A total of 65 patients with hematochezia who underwent colonoscopy and barium enema were analyzed, and the diagnostic value of colonoscopy for diverticula was assessed. The receiver operating characteristic ar...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v19.i15.2362
更新日期:2013-04-21 00:00:00
abstract::Cytokines are indispensable signals of the mucosa-associated immune system for maintaining normal gut homeostasis. An imbalance of their profile in favour of inflammation initiation may lead to disease states, such as that is observed in inflammatory bowel diseases (IBD). Although Crohn's disease (CD) is often describ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v18.i41.5848
更新日期:2012-11-07 00:00:00
abstract:AIM:To explore the effects of the nucleoside analogues beta-L-D4A and beta-LPA on hepatitis B virus (HBV) promoters. METHODS:Four HBV promoters were amplified by polymerase chain reaction (PCR) and subcloned into the expression vector pEGFP-1. The four recombinants controlled by HBV promoters were confirmed by restric...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.14.1836
更新日期:2008-03-28 00:00:00
abstract:BACKGROUND:The Korea National Cancer Screening Program currently provides screening for colorectal cancer (CRC) for adults older than 50 years with no upper age limit. In general, people are likely to only pay attention to the benefits of cancer screening and to neglect its risks. Most consider the benefits of cancer s...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v26.i27.3963
更新日期:2020-07-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v21.i2.694
更新日期:2015-01-14 00:00:00
abstract::Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. At the molecular level, GISTs can be categorized into two groups based on the causative oncogenic mutations. Approximately 85% of GISTs are caused by gain-of-function mutations in the tyrosine kinase receptor ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v26.i34.5074
更新日期:2020-09-14 00:00:00
abstract::Unspecific abdominal complaints including bloating and irregular bowel movements may be caused by carbohydrate malabsorption syndromes, e.g., lactose and fructose malabsorption. These symptoms were investigated with hydrogen (H2) breath tests and correlated to carbohydrate malabsorption. During performing these H2-bre...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v21.i35.10242
更新日期:2015-09-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i28.4332
更新日期:2005-07-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v25.i13.1603
更新日期:2019-04-07 00:00:00
abstract:AIM:The prognosis of early gastric carcinoma (EGC) is generally excellent after surgery. The presence or absence of lymph node metastasis in EGC is an important prognostic factor. The survival and recurrence rates of node-negative EGC are much better than those of node-positive EGC. This study examined the factors rela...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i5.737
更新日期:2004-03-01 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i26.4045
更新日期:2005-07-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i35.4494
更新日期:2010-09-21 00:00:00
abstract:AIM:To investigate the clinical efficacy and toxic effects of neoadjuvant chemotherapy using docetaxel combined with oxaliplatin and fluorouracil for treating stage III/IV gastric cancer. METHODS:A total of 53 stage III/IV gastric cancer patients were enrolled into the study and treated with neoadjuvant chemotherapy. ...
journal_title:World journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.3748/wjg.v20.i48.18413
更新日期:2014-12-28 00:00:00
abstract:AIM:To investigate the effects of combined use of emodin and baicalein (CEB) at the cellular and organism levels in severe acute pancreatitis (SAP) and explore the underlying mechanism. METHODS:SAP was induced by retrograde infusion of 5% sodium taurocholate into the pancreatic duct in 48 male SD rats. Pancreatic hist...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v24.i1.35
更新日期:2018-01-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i12.2768
更新日期:2003-12-01 00:00:00