Abstract:
AIM:To construct pcDNA3.1-Egr.1p-p16 recombinant plasmid and investigate the expression of p16 in pancreatic cancer JF305 cells induced by radiation and the feasibility of gene radiotherapy for pancreatic carcinoma. METHODS:Human p16 cDNA was ligated to the downstream of Egr-1 promotor to construct pcDNA3.1-Egr.1p-p16 plasmid by restriction enzyme digested. The recombined plasmids were transfected into pancreatic cancer JF305 cells with lipofectamine. p16 mRNA level was detected by RT-PCR. The expression of p16 after different doses of X-ray radiation was detected by Western blot technique. Cell survival was assessed by clonogenic assays and cell viability was analysed by trypen blue exclusion. Flow cytometry was performed to study the apoptosis of JF305 cells. RESULTS:Restriction enzyme digestion showed the correctly constructed pcDNA3.1-Egr.1p-p16. The p16 expression in cells transfected with pcDNA3.1-Egr.1p-p16 induced by different doses of radiation was higher than that in the control group (P < 0.05). Eight hours after 2 Gy X-ray radiation, the expression reached its peak (87.00 ng/L), and was significantly higher than that in the control group (P < 0.0.5). Clonogenic analysis and trypan blue extraction test showed that the pcDNA3.1-Egr.1p-p16 transfer enhanced radiation-induced cell killing in p16-null JF305 cell lines. The induction of apoptosis was lower in combined transfection and irradiation group than that in irradiation alone. CONCLUSION:X-ray can induce the recombinant plasmid pcDNA3.1-Egr.1p-p16 expression in JF305 cells. The detection of dose and time provides an experimental basis for in vivo study in future.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Ma HB,Wang XJ,Di ZL,Xia H,Li Z,Liu J,Ma J,Kang HF,Wu CM,Bai MHdoi
10.3748/wjg.v13.i31.4214subject
Has Abstractpub_date
2007-08-21 00:00:00pages
4214-8issue
31eissn
1007-9327issn
2219-2840journal_volume
13pub_type
杂志文章abstract::While debate continues as to which is the best surgical method for the treatment of hemorrhoids, none of the currently available surgical methods approach the ideal surgical option, which is one that is effective while being safe and painless. In reality, the less painful the procedure, the more likely it is to be ass...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v20.i45.16976
更新日期:2014-12-07 00:00:00
abstract::The systemic therapies available for the management of Psoriasis (PsO) patients who cannot be treated with more conservative options, such as topical agents and/or phototherapy, with the exception of acitretin, can worsen or reactivate a chronic infection. Therefore, before administering immunosuppressive therapies wi...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v22.i28.6444
更新日期:2016-07-28 00:00:00
abstract:AIM:To evaluate the effects of DA-9701 on the gastric emptying of a solid meal using the ¹³C-octanoic acid breath test in a mouse model. METHODS:Male C57BL/6 mice aged > 8 wk and with body weights of 20-25 g were used in this study. The solid test meal consisted of 200 mg of egg yolk labeled with 1.5 L/g ¹³C-octanoic ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v19.i27.4380
更新日期:2013-07-21 00:00:00
abstract:AIM:To identify the subset of patients with stage IB gastric cancer with an unfavorable prognosis. METHODS:Overall survival (OS) rates were examined in 103 patients with stage IB (T1N1M0 and T2N0M0) gastric cancer between January 2000 and December 2011. Univariate and multivariate analyses were performed to identify r...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i21.6580
更新日期:2014-06-07 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) has been recognized as a major health burden. The high prevalence of NAFLD is probably due to the contemporary epidemics of obesity, unhealthy dietary pattern, and sedentary lifestyle. The efficacy and safety profile of pharmacotherapy in the treatment of NAFLD remains uncertai...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v17.i29.3377
更新日期:2011-08-07 00:00:00
abstract:AIM:To study the effect of probiotics on interleukin-8 secretion in intestinal epithelia when stimulated by proinflammatory cytokines. METHODS:Colonic adenocarcinoma HT29 cells were cultured and divided into four groups: control, TNF-alpha (group T in short), bifidobacterium (group B), lactobacillus (group L). B. Long...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i3.455
更新日期:2004-02-01 00:00:00
abstract:AIM:To investigate the prognostic value of the expression of connexin (Cx) 26, 32 and 43 messenger RNA (mRNA) in hepatocellular carcinoma (HCC) tissues. METHODS:Using a reverse-transcriptase polymerase chain reaction (RT-PCR), Cx 26, Cx 32 and Cx 43 mRNAs were determined in the liver tissues of 15 controls and in HCC ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i19.2785
更新日期:2004-10-01 00:00:00
abstract:AIM:To analyze the predictive factors for lymph node metastasis (LNM) in early gastric cancer (EGC). METHODS:Data from patients surgically treated for gastric cancers between January 1994 and December 2007 were retrospectively collected. Clinicopathological factors were analyzed to identify predictive factors for LNM....
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i41.5252
更新日期:2010-11-07 00:00:00
abstract::Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive storage of fatty acids in the form of triglycerides in hepatocytes. It is most prevalent in western countries and includes a wide range of clinical and histopathological findings, namely from simple steatosis to steatohepatitis and fibrosis, which...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v26.i17.1993
更新日期:2020-05-07 00:00:00
abstract::Helicobacter pylori (H. pylori) colonizes the stomach of humans and causes chronic infection. The majority of bacteria live in the mucus layer overlying the gastric epithelial cells and only a small proportion of bacteria are found interacting with the epithelial cells. The bacteria living in the gastric mucus may act...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v20.i19.5610
更新日期:2014-05-21 00:00:00
abstract:AIM:To investigate the protective effect and mechanism of rebamipide on small intestinal permeability induced by diclofenac in mice. METHODS:Diclofenac (2.5 mg/kg) was administered once daily for 3 d orally. A control group received the vehicle by gavage. Rebamipide (100 mg/kg, 200 mg/kg, 400 mg/kg) was administered i...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i10.1059
更新日期:2012-03-14 00:00:00
abstract:AIM:To retrospectively evaluate the imaging features of pancreatic intraductal papillary mucinous neoplasms (IPMNs) in multi-detector row computed tomography (MDCT). METHODS:A total of 20 patients with pathologically-confirmed intraductal papillary mucinous neoplasms (IPMNs) were included in this study. Axial MDCT ima...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.15.4037
更新日期:2009-08-28 00:00:00
abstract:AIM:To investigate the effect of intensive vs conventional insulin therapy on perioperative nutritional substrates metabolism in patients undergoing radical distal gastrectomy. METHODS:Within 24 h of intensive care unit management, patients with gastric cancer were enrolled after written informed consent and randomize...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,随机对照试验
doi:10.3748/wjg.v18.i21.2695
更新日期:2012-06-07 00:00:00
abstract::AIM:To evaluate hepatic energy charge levels of the patients with hepatoma after hepatic artery embolization and its relation to postoperative complications.METHODS:Sixty-nine patients with hepatoma were continuously measured for their arterial blood ketone body ratio (AKBR) and compared with their postoperative clini...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v4.i2.109
更新日期:1998-04-01 00:00:00
abstract::Leiomyomas are the most common benign tumors of the esophagus. They usually occur as a single lesion or as two or three nodules. Only two cases of esophageal multiple leiomyomas comprising more than 10 nodules have been reported previously. Moreover, there have been few reports of esophageal squamous cell carcinoma ov...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v12.i28.4588
更新日期:2006-07-28 00:00:00
abstract:AIM:To assess the value of multidetector-row computed tomography (MDCT) in choosing retreatment methods of hepatocellular carcinoma (HCC) through evaluating the blood supply of low-density area of HCC after transcatheter arterial chemoembolization (TACE). METHODS:Thirty-two patients with HCC after TACE treatment were ...
journal_title:World journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.3748/wjg.v10.i14.2127
更新日期:2004-07-15 00:00:00
abstract:AIM:To investigate the possible mechanism by which hepatitis B virus X protein (HBx) mediates apoptosis of HepG2 cells. METHODS:HBx expression vector pcDNA3.1-X was transfected into HepG2 cells to establish an HBx high-expression cellular model as pcDNA3.1-X transfected group. The pcDNA3.1-X and pSilencer3.1-shHBX (HB...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i13.1485
更新日期:2012-04-07 00:00:00
abstract:AIM:To investigate the inhibitory effect and possible mechanism of action of schisandrin B in SC-B on gastric cancer cells in vitro. METHODS:SC-B consisted of schisandrin B, aloe-emodin, and Astragalus polysaccharides. Exponentially growing human gastric cancer SGC-7901 cells were divided into six treatment groups: (1...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i48.6506
更新日期:2007-12-28 00:00:00
abstract:AIM:To explore the cooperative effects of antisense oligonucleotide (ASON) of cell adhesion molecules and cimetidine on the expression of E-selectin and ICAM-1 in endothelial cells and their adhesion to tumor cells. METHODS:After treatment of endothelial cells with ASON and/or cimetidine and induction with TNF-alpha, ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i1.62
更新日期:2004-01-01 00:00:00
abstract:AIM:To evaluate prospectively usefulness of fecal lactoferrin (Lf) and fecal hemoglobin (Hb) in the diagnosis of colorectal diseases. METHODS:Fecal Lf and Hb were measured using ELISA in 872 patients before they underwent colorectal endoscopy. RESULTS:Lf was positive in 18 (50%) of 36 patients with colorectal cancer,...
journal_title:World journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.3748/wjg.v13.i10.1569
更新日期:2007-03-14 00:00:00
abstract:AIM:To investigate the reactivity of a panel of 8 mouse anti-hepatitis B surface antigen (HBsAg) monoclonal antibodies (mAbs) using a collection of 9 recombinant HBsAg mutants with a variety of amino acid substitutions mostly located within the "a" region. METHODS:The entire HBs genes previously cloned into a mammalia...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i33.5368
更新日期:2006-09-07 00:00:00
abstract:AIM:To establish a visceral pain model via colorectal distension (CRD) and to evaluate the efficiency of behavioral responses of CRD by measuring the score of abdominal withdrawal reflex (AWR) in rats. METHODS:Thirty-eight male SD rats weighing 180-240 g were used to establish the visceral pain model. The rat was inse...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i17.2781
更新日期:2006-05-07 00:00:00
abstract::Primary aorto-colic fistula is rarely reported in the literature. Although infrequently encountered, it is an important complication since it is usually fatal unless detected. Primary aorto-colic fistula is a spontaneous rupture of abdominal aortic aneurysm into the lumen of the adjacent colon loop. Here we report a c...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i46.7549
更新日期:2006-12-14 00:00:00
abstract:AIM:To analyze retrospectively, our results about patients who underwent surgical treatment for adenocarcinoma of the cardia in relation to age, in order to evaluate surgical problems and prognostic factors. METHODS:From January 1987 to March 2003, 140 patients with adenocarcinoma of the cardia underwent resection in ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i33.5123
更新日期:2005-09-07 00:00:00
abstract:AIM:To investigate the effect and mechanism of action of the nitric oxide synthase (NOS) inhibitor NG-nitro-L-arginine methyl ester (L-NAME) on invasion and metastasis of human colorectal cancer cell line SL-174T. METHODS:Human colorectal cancer cell line SL-174T was cultured and treated separately with four different...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i40.6385
更新日期:2005-10-28 00:00:00
abstract:AIM:To determine the effect of chemotherapy on wound healing by giving early preoperative 5-fluorouracil (5-FU) to rats with colonic anastomoses. METHODS:Sixty Albino-Wistar male rats (median weight, 235 g) were used in this study. The rats were fed with standard laboratory food and given tap water ad libitum. The ani...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.15.4156
更新日期:2009-09-07 00:00:00
abstract::Cystic dystrophy of the duodenal wall is a rare condition characterized by the development of cysts in heterotopic pancreatic tissue localized in the duodenal wall. A 38-year-old man was admitted to the hospital for abdominal pain and vomiting after food intake. The diagnosis of acute pancreatitis was initially suspec...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v10.i17.2609
更新日期:2004-09-01 00:00:00
abstract::The clinical course of chronic liver diseases is significantly dependent on the progression rate and the extent of fibrosis, i.e. the non-structured replacement of necrotic parenchyma by extracellular matrix. Fibrogenesis, i.e. the development of fibrosis can be regarded as an unlimited wound healing process, which is...
journal_title:World journal of gastroenterology
pub_type: 社论
doi:10.3748/wjg.15.2433
更新日期:2009-05-28 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) is a group of diseases with excess fat in liver in the absence of a poorly defined limit of alcohol consumption. Most common variety, a universal public health problem, is associated with insulin resistance caused by a host of genetic and epigenetic defects modulated by life st...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.14.831
更新日期:2008-02-14 00:00:00
abstract:AIM:To compare the clinical efficacy of the second-generation H2RA lafutidine with that of lansoprazole in Japanese patients with mild gastroesophageal reflux disease (GERD). METHODS:Patients with symptoms of GERD and a diagnosis of grade A reflux esophagitis (according to the Los Angeles classification) were randomiz...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.3748/wjg.v22.i23.5430
更新日期:2016-06-21 00:00:00