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| 1 | Cytokine production in patients with cirrhosis and TLR4 polymorphisms显示文摘AIM:To analyze the cytokine production by peripheral blood cells from cirrhotic patients with and without TLR4 D299G and/or T399I polymorphisms.METHODS:The study included nine patients with cirrhosis and TLR4 D299G and/or T399I polymorphisms,and 10 wild-type patients matched for age,sex and degree of liver failure.TLR4 polymorphisms were determined by sequence-based genotyping.Cytokine production by peripheral blood cells was assessed spontaneously and also after lipopolysaccharide(LPS)and lipoteichoic acid(LTA)stimulation.RESULTS:Patients with TLR4 polymorphisms had a higher incidence of previous hepatic encephalopathy than wild-type patients(78%vs 20%,P=0.02).Spontaneous production of interleukin(IL)-6 and IL-10 was lower in patients with TLR4 polymorphisms than in wild-type patients[IL-6:888.7(172.0-2119.3)pg/m L vs 5540.4(1159.2-26053.9)pg/m L,P<0.001;IL-10:28.7(6.5-177.1)pg/m L vs 117.8(6.5-318.1)pg/m L,P=0.02].However,the production of tumor necrosis factor-α,IL-6 and IL-10 after LPS and LTA stimulation was similar in the two groups.CONCLUSION:TLR4 polymorphisms were associated with a distinctive pattern of cytokine production in cirrhotic patients,suggesting that they play a role in the development of cirrhosis complications. | Juan Camilo Nieto Elisabet Sánchez Eva Román Silvia Vidal Laia Oliva Carlos Guarner-Argente Maria Poca Xavier Torras Cándido Juárez Carlos Guarner German Soriano | 2014 | World Journal of Gastroenterology2014，20，46： | 5 |
| 2 | Plant Growth-Promoting Traits in Rhizobacteria of Heavy Metal-Resistant Plants and Their Effects on Brassica nigra Seed Germination显示文摘Phytoremediation is an emerging technology that uses plants and their associated microbes to clean up pollutants from the soil, water, and air. In order to select the plant growth-promoting rhizobacteria(PGPR) for phytoremediation of heavy metal contamination, 60 bacterial strains were isolated from the rhizosphere of two endemic plants, Prosopis laevigata and Spharealcea angustifolia, in a heavy metal-contaminated zone in Mexico. These rhizobacterial strains were characterized for the growth at different pH and salinity, extracellular enzyme production, solubilization of phosphate, heavy metal resistance, and plant growth-promoting(PGP) traits, including production of siderophores and indol-3-acetic acid(IAA). Overall, the obtained rhizobacteria presented multiple PGP traits. These rhizobacteria were also resistant to high levels of heavy metals(including As as a metalloid)(up to 480 mmol L(-1)As(V), 24 mmol L(-1)Pb(Ⅱ), 21 mmol L(-1)Cu(Ⅱ), and 4.5 mmol L(-1)Zn(Ⅱ)). Seven rhizobacterial strains with the best PGP traits were identified as members of Alcaligenes, Bacillus, Curtobacterium, and Microbacterium, and were selected for further bioassay.The inoculation of Brassica nigra seeds with Microbacterium sp. CE3R2, Microbacterium sp. NE1R5, Curtobacterium sp. NM1R1,and Microbacterium sp. NM3E9 facilitated the root development; they significantly improved the B. nigra seed germination and root growth in the presence of heavy metals such as 2.2 mmol L(-1)Zn(Ⅱ). The rhizobacterial strains isolated in the present study had the potential to be used as efficient bioinoculants in phytorremediation of soils contaminated with multiple heavy metals. | Brenda ROMN-PONCE Diana Miryel REZA-VZQUEZ Sonia GUTIRREZ-PAREDES María de Jesús DE HARO-CRUZ Jessica MALDONADO-HERNNDEZ Yanely BAHENA-OSORIO Paulina ESTRADA-DE LOS SANTOS En Tao WANG María Soledad VSQUEZ-MURRIETA | 2017 | Pedosphere2017，27，3： | 4 |
| 3 | Toll-like receptor 4 polymorphisms and bacterial infections in patients with cirrhosis and ascites显示文摘AIM To assess the relationship between the presence of toll-like receptor 4(TLR4) polymorphisms and bacterial infections in cirrhotic patients with ascites. METHODS We prospectively included consecutive patients with cirrhosis and ascites hospitalized during a 6-year period. Patients with human immunodeficiency virus(HIV) infection or any other immunodeficiency, patients with advanced hepatocellular carcinoma(beyond Milan's criteria) or any other condition determining poor short-term prognosis, and patients with a permanent urinary catheter were excluded. The presence of D299 G and/or T399 I TLR4 polymorphisms was determined by sequencing and related to the incidence and probability of bacterial infections, other complications of cirrhosis, hepatocellular carcinoma, and mortality during follow-up. A multivariate analysis to identify predictive variables of mortality in the whole series was performed. RESULTS We included 258 patients: 28(10.8%) were carriers of D299G and/or T399I TLR4 polymorphisms(polymorphism group) and 230 patients were not(wildtype group). The probability of developing any bacterial infection at one-year follow-up was 78% in the polymorphism group and 69% in the wild-type group(P = 0.54). The one-year probability of presenting infections caused by gram-negative bacilli(51% vs 44%, P = 0.68), infections caused by gram-positive cocci(49% vs 40%, P = 0.53), and spontaneous bacterial peritonitis(29% vs 34%, respectively, P = 0.99) did not differ between the two groups. The oneyear probability of transplant-free survival was 55% in the polymorphism group and 66% in the wild-type group(P = 0.15). Multivariate analysis confirmed that age, Child-Pugh score, active alcohol intake, previous hepatic encephalopathy, hepatocellular carcinoma and serum creatinine were associated with a higher risk of death during follow-up. CONCLUSION Genetic polymorphisms D299 G and/or T399 I of TLR4 do not seem to play a relevant role in the predisposition of cirrhotic patients with ascites to bacterial infections. | Edilmar Alvarado-Tapias Carlos Guarner-Argente Elida Oblitas Elisabet Sánchez Silvia Vidal Eva Román Mar Concepción Maria Poca Cristina Gely Oana Pavel Juan Camilo Nieto Cándido Juárez Carlos Guarner Germán Soriano | 2018 | World Journal of Hepatology2018，10，1： | 3 |
| 4 | Preclinical evaluation of azathioprine plus buthionine sulfoximine in the treatment of human hepatocarcinoma and colon carcinoma显示文摘AIM: To evaluate the efficacy and the safety of azathioprine (AZA) and buthionine sulfoximine (BSO) bylocalized application into HepG2 tumor in vivo.METHODS: Different hepatoma and colon carcinoma cell lines (HepG2, HuH7, Chang liver, LoVo, RKO, SW-48, SW-480) were grown in minimal essencial medium supplemented with 10% fetal bovine serum and 1% antibiotic/antimycotic solution and maintained in a humidified 37 ℃ incubator with 5% CO2. These cells were pretreated with BSO for 24 h and then with AZA for different times. We examined the effects of this combination on some proteins and on cellular death. We also studied the eff icacy and the safety of AZA (6 mg/kg per day) and BSO (90 mg/kg per day) in HepG2 tumor growth in vivo using athymic mice. We measured safety by serological markers such as aminotransferases and creatine kinase.RESULTS: The in vitro studies revealed a new mechanism of action for the AZA plus BSO combination in the cancer cells compared with other thiopurines (6-mercaptopurine, 6-methylmercaptopurine, 6-thioguanine and 6-methylthioguanine) in combination with BSO. The cytotoxic effect of AZA plus BSO in HepG2 cells resulted from necroptosis induction in a mitochondrial-dependent manner. From kinetic studies we suggest that glutathione (GSH) depletion stimulates c-Jun amino-terminal kinase and Bax translocation in HepG2 cells with subsequent deregulation of mitochondria (cytochrome c release, loss of membrane potential), and proteolysis activation leading to loss of membrane integrity, release of lactate dehydrogenase and DNA degradation. Some of this biochemical and cellular changes could be reversed by N-acetylcysteine (a GSH replenisher). In vivo studies showed that HepG2 tumor growth was inhibited when AZA was combined with BSO.CONCLUSION: Our studies suggest that a combination of AZA plus BSO could be useful for localizedtreatment of hepatocellular carcinoma as in the currently used transarterial chemoembolization method. | Borja Hernández-Breijo Jorge Monserrat Sara Ramírez-Rubio Eva P Cuevas Diana Vara Inés Díaz-Laviada M Dolores Fernández-Moreno Irene D Román Javier P Gisbert Luis G Guijarro | 2011 | World Journal of Gastroenterology2011，17，34： | 2 |
| 5 | An investigation ofbuffer sizing techniques in critical chain scheduling显示文摘 | Tukel O I Rom W O Eksioglu S D | 2006 | European journal of operational research2006，172，2： | 1 |
| 6 | Emerging therapiesfor vascular dementia and vascular cognitive impairment显示文摘 | Erkinjuntti T Romn G Gauthier S | 2004 | Stroke2004，35，4： | 1 |
| 7 | Discovering interesting knowledge from a science and technology database with a genetic algorithm显示文摘 | Rom Aow Freitasaa I M S Gmenes | | 0，，02： | 1 |
| 8 | External validation of a classification for methylene blue magnification chromoendoscopy in premalignant gastric lesions显示文摘 | Miguel Areia Pedro Amaro Mário Dinis-Ribeiro Maria Augusta Cipriano Carol Marinho Altamiro Costa-Pereira Carlos Lopes Luís Moreira-Dias José Manuel Rom?ozinho Hermano Gouveia Diniz Freitas Maximino Correia Leit?o | 2008 | Gastrointestinal Endoscopy2008，，7： | 1 |
| 9 | Adding Clicks to Bricks:A Study of the Consequences on Customer Loyalty in a Service Context显示文摘 | Fern Ndez-Sabiote E Rom N S | 2012 | Electronic Commerce Research and Applications2012，11，1： | 1 |
| 10 | An investigation of buffer sizing techniques in critical chain scheduling显示文摘 | Tukel O I Rom W O Eksioglu S D | 2006 | European Journal of Operational Research2006，172，： | 1 |
| 11 | Treatment of vascular dementia-evidence from clinical trials with cholinesterase inhibitors显示文摘 | Erkinjuntti T Román G Gauthier S | 2004 | J Neurol Sci2004，226，： | 1 |
| 12 | An investigation ofbuffer sizing techniques in critical chain scheduling显示文摘 | TUKEL O I ROM W O EKSIOGLU S D | 2006 | European JournalofOperational Research2006，172，2： | 1 |
| 13 | An investigation of buffer sizing techniques in critical chain scheduling显示文摘 | TUKEL O I ROM W O EKSIOGLU S D | 2006 | European J of Operational Research2006，172，2： | 1 |
| 14 | The influence of formulation variables on in vitro transfection efficiency and physicochemical properties of chitosan-based polyplexes显示文摘 | Romren K Pedersen S Smistad G | 2003 | Int J Pharm2003，261，： | 1 |
| 15 | The spatial Ultimatum game revisited显示文摘 | Jaime Iranzo Javier Román Angel Sánchez | 2011 | Journal of Theoretical Biology2011，，1： | 1 |
| 16 | Deletion of the adenoviral E1b-19kD gene enhances tumor cell killing of a replicating adenoviral vector 显示文摘 | Sauthoff H Heitner S Rom WN | 2000 | Hum Gene Ther2000，11，： | 1 |
| 17 | LNA-modified oligonu-cleotides mediate specific inhibition of microRNA function显示文摘 | Φrom UA Kauppinen S Lund AH | 2006 | Gene2006，372，： | 1 |
| 18 | Effects of intravenous albumin in patients with cirrhosis and episodic hepatic encephalopathy: A randomized double-blind study显示文摘 | Macarena Simón-Talero Rita García-Martínez Maria Torrens Salvador Augustin Susana Gómez Gustavo Pereira Mónica Guevara Pere Ginés Germán Soriano Eva Román Jordi Sánchez-Delgado Roser Ferrer Juan C. Nieto Pilar Sunyé Inma Fuentes Rafael Esteban Juan Córdob | 2013 | Journal of Hepatology2013，，6： | 1 |
| 19 | On the effect of montmorillonite in the curing reaction of epoxy nanocomposites显示文摘 | Román F Montserrat S Hutchinson J M | 2007 | Journal of Thermal Analysis and Calorimetry2007，87，1： | 1 |
| 20 | A single dose of dalteparin effect ively prevents clotting during haemodialysis显示文摘 | Sagedal S Hartmann A Sundst rom K | | 0，，： | 1 |
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