Gansu Provincial level Key Laboratory of Digestive System Tumors

Lanzhou, China

Gansu Provincial level Key Laboratory of Digestive System Tumors

Lanzhou, China
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Wang M.C.,Lanzhou University | Wang M.C.,Gansu Provincial level Key Laboratory of Digestive System Tumors | Zhang L.Y.,Lanzhou University | Zhang Y.L.,Lanzhou University | And 7 more authors.
Pain Medicine (United States) | Year: 2014

Objective: Endoscopies are common clinical examinations that are somewhat painful and even cause fear and anxiety for patients. We performed this systematic review and meta-analysis of randomized controlled trials to determine the effect of music on patients undergoing various endoscopic procedures. Methods: We searched the Cochrane Library, Issue 6, 2013, PubMed, and EMBASE databases up to July 2013. Randomized controlled trials comparing endoscopies, with and without the use of music, were included. Two authors independently abstracted data and assessed risk of bias. Subgroup analyses were performed to examine the impact of music on different types of endoscopic procedures. Results: Twenty-one randomized controlled trials involving 2,134 patients were included. The overall effect of music on patients undergoing a variety of endoscopic procedures significantly improved pain score (weighted mean difference [WMD]=-1.53, 95% confidence interval [CI] [-2.53, -0.53]), anxiety (WMD=-6.04, 95% CI [-9.61, -2.48]), heart rate (P=0.01), arterial pressure (P<0.05), and satisfaction score (SMD=1.83, 95% CI [0.76, 2.91]). Duration of the procedure (P=0.29), except for gastrointestinal endoscopy (P=0.03), and sedative or analgesic medication dose (P=0.23, P=0.12, respectively) were not significantly decreased in the music group, compared with the control group. Furthermore, music had little effect for patients undergoing colposcopy and bronchoscopy in the subanalysis. Conclusion: Our meta-analysis suggested that music may offer benefits for patients undergoing endoscopy, except in colposcopy and bronchoscopy. © 2014 American Academy of Pain Medicine.


Wang M.C.,Lanzhou University | Wang M.C.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | Zhang L.Y.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | Zhang L.Y.,Lanzhou University | And 18 more authors.
Medicine (United States) | Year: 2014

Vedolizumab is an anti-inflammatory monoclonal antibody that exclusively targets the α4β7 integrin. We aimed to systematically review the efficacy and safety of vedolizumab for patients with inflammatory bowel diseases (IBDs).PubMed, EMBASE, and the Cochrane Library were searched up to May 2014. Randomized controlled trials examining the efficacy or safety of vedolizumab in patients with IBDs were eligible for inclusion. Data were extracted independently by 2 investigators and pooled using Review Manager 5.0 software (The Cochrane Collaboration, Copenhagen). Results were expressed as the relative risk (RR) with 95% confidence intervals (CIs).Six randomized controlled trials involving 2815 patients were eligible for inclusion. Vedolizumab was more effective than placebo for patients with ulcerative colitis and Crohn disease (CD) in clinical response (RR = 1.82, 95% CI, [1.43, 2.31]; RR = 1.46, 95% CI [1.18,1.81]) and clinical remission (RR = 2.23, 95% CI [1.35, 3.68]; RR = 1.71, 95% CI [1.25, 2.34]) during induction therapy. A superior effect was found during maintenance therapy in durable clinical/CD Activity Index-100 response (RR = 2.22, 95% CI [1.62, 3.05]; RR = 1.48, 95% CI [1.13, 1.94]) and clinical remission (RR = 2.55, 95% CI [1.38, 4.70]; RR = 1.15, 95% CI [0.75, 1.77]). However, vedolizumab may be associated with serious adverse events (RR = 1.25, 95% CI [1.03, 1.52]) and nasopharyngitis (RR = 1.56, 95% CI [1.08, 2.25]) for patients with CD.Vedolizumab was more effective than placebo as induction and maintenance therapy for IBDs, with an acceptable short-term safety profile, and achieving cure, although it may be associated with serious adverse events and nasopharyngitis for patients with CD. Copyright © 2014 Wolters Kluwer Health / Lippincott Williams & Wilkins.


Zhang Y.C.,Lanzhou University | Zhang Y.C.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | Guo L.Q.,Lanzhou University | Guo L.Q.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | And 10 more authors.
Molecular Medicine Reports | Year: 2015

Death receptor 3 (DR3) belongs to the tumor necrosis factor (TNF) receptor superfamily, primarily found in lymphoid tissues. Reports have determined that DR3 may also be distributed in numerous types of tumors. Therefore, it is thought that DR3 may have an important role in the process of tumorigenesis. The aim of the present study was to observe the effect of silencing DR3 expression on hepatocarcinoma cell growth, apoptosis and invasion in order to elucidate the role of DR3 in tumor development. The hepatocarcinoma cell lines (HepG2, Huh7, SMMC7721 and Bel7402) and normal human liver cells (HL7702) were transfected with three stealth RNA interference (RNAi) sequences that target the DR3 gene. Reverse transcription quantitative polymerase chain reaction was used to detect the expression levels of DR3 in hepatocarcinoma cell lines and normal liver HL7702 cells. MTT assay and flow cytometry (FCM) were used to determine the rates of cell proliferation and apoptosis, respectively. Following silencing of the DR3 gene, western blot analysis was used to determine the protein expression of P53, Fas, Caspase8, nuclear factor kappalightchainenhancer of activated B cells (NFκB) and Caspase3. DR3 messenger RNA (mRNA) expression in hepatocarcinoma cell lines was significantly increased compared with that in the normal liver cell line. Three targeted DR3 gene small interfering RNAs significantly inhibited DR3 gene expression in Bel7402 cells at the nucleic acid level. AF02670.1-stealth-883 and cocktail demonstrated the most efficient inhibition of DR3 gene expression at 48 and 72 h following transfection, with mRNA inhibition rates of 89.46 and 92.75%, and 90.53 and 94.25% (P<0.01), respectively. Cell viability was significantly reduced by AF02670.1-stealth-883 and RNAi cocktail at 24, 48 and 72 h following transfection. The inhibition rates of cell proliferation were 50.76 and 61.76% (P<0.05) at 72 h following transfection. FCM revealed that AF02670.1-stealth-883 and RNAi cocktail also induced apoptosis in Bel7402 cells at 72 h following transfection. Reduction of NFκB and P53 levels was observed (P<0.05) in Bel7402 cells following DR3 silencing, whereas levels of Fas, Caspase3 and Caspase8 were markedly elevated (P<0.05). DR3 expression levels in hepatocellular carcinoma cells were significantly higher than those in normal cells. DR3 silencing effectively inhibited proliferation and invasion of hepatocellular carcinoma cells in vitro. However, silencing of the DR3 gene affect levels of apoptosis antigen3 ligand in cells, therefore indicating that it may be involved with other pathways that regulate apoptosis in HCCs. In conclusion, the results of the present study indicated that DR3 may be a promising therapeutic target molecule for further study of hepatocellular carcinoma gene therapy.


Cheng J.,Lanzhou University | Cheng J.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | Han W.,Lanzhou University | Han W.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | And 10 more authors.
BioMed Research International | Year: 2015

Euphorbia helioscopia L. is a traditional Chinese medicine; recently research found that its ethyl acetate extract (EAE) plays an important role on tumor cell proliferation, apoptosis, invasion, and metastasis in vitro. But the effect of EAE for tumor cells in vivo has not been reported. To explore the inhibitory effect of EAE and molecular mechanism on hepatocellular carcinoma (HCC) SMMC-7721 cells in vivo, we utilized the nude mouse xenograft model of HCC. Treated with EAE (50, 100, and 200 g/mL), the volume of xenograft was measured during the entire process of EAE treatment. In EAE treatment group, the volume of xenograft was significantly reduced compared with the control group (P<0.05) and the protein expressions of CyclinD1, bcl-2, and MMP-9 were reduced, while those of bax, caspase-3, and nm23-H1 were increased. A significant change trend with increasing EAE concentrations has presented, compared with controls. Moreover, the ultrastructural morphology of xenografts showed significant changes, including nuclear pyknosis and chromatin condensation, We found that EAE could effectively inhibit tumor growth, induce apoptosis, and inhibit tumor invasion and metastasis in vivo; it is suggested that EAE is a potential candidate for as a new anticancer agent. © 2015 Junsheng Cheng et al.


Zhang Y.-L.,Lanzhou University | Zhang Y.-L.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | Zhang Y.-C.,Lanzhou University | Zhang Y.-C.,Gansu Provincial Level Key Laboratory of Digestive System Tumors | And 11 more authors.
World Journal of Gastroenterology | Year: 2014

AIM: To investigate the roles of Golgi protein (GP) 73 in the regulation of cell proliferation and apoptosis. METHODS: Stealth RNAi targeting GP73 gene sequence was used to silence its expression in Hep G2 cells and Bel7402 cells. Stealth RNAi effects were assessed by reverse transcriptase polymerase chain reaction and ELISA. Cell proliferation assay and cell cycle analysis were assessed by MTT assay and flow cytometry. Apoptosis was assessed by flow cytometry and transmission electron microscopy. Apoptosis-related proteins were assessed by western immunoblot analysis. RESULTS: Stealth RNAi targeting GP73 gene sequence markedly reduced the expression of GP73 gene. The reduction of GP73 in Hep G2 cells and Bel7402 cells inhibited cell proliferation and induced apoptosis, however, terminal apoptosis occurred in Hep G2 cells, but early apoptosis occurred in Bel7402 cells. Reduced expression of GP73 gene might lead to a reduction in Bcl-2/Bax ratio, an increase in cytochrome c, but a reduction in capase-3. CONCLUSION: GP73 might play an important role in proliferation and apoptosis in hepatocellular carcinoma cells. © 2014 Baishideng Publishing Group Inc. All rights reserved.

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