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| 1 | Dietary advanced glycation end-products aggravate non-alcoholic fatty liver disease显示文摘AIM To determine if manipulation of dietary advanced glycation end product(AGE), intake affects nonalcoholic fatty liver disease(NAFLD) progression and whether these effects are mediated via RAGE. METHODS Male C57Bl6 mice were fed a high fat, high fructose, high cholesterol(HFHC) diet for 33 wk and compared with animals on normal chow. A third group were given a HFHC diet that was high in AGEs. Another group was given a HFHC diet that was marinated in vinegar to prevent the formation of AGEs. In a second experiment, RAGE KO animals were fed a HFHC diet or a high AGE HFHC diet and compared with wildtype controls. Hepatic biochemistry, histology, picrosirius red morphometry and hepatic mR NA were determined. RESULTS Long-term consumption of the HFHC diet generated significant steatohepatitis and fibrosis after 33 wk. In this model, hepatic 4-hydroxynonenal content(a marker of chronic oxidative stress), hepatocyte ballooning, picrosirius red staining, α-smooth muscle actin and collagen type 1A gene expression were all significantly increased. Increasing the AGE content of the HFHC diet by baking further increased these markers of liver damage, but this was abrogated by pre-marination in acetic acid. In response to the HFHC diet, RAGE-/-animals developed NASH of similar severity to RAGE+/+ animals but were protected from the additional harmful effects of the high AGE containing diet. Studies in isolated Kupffer cells showed that AGEs increase cell proliferation and oxidative stress, providing a likely mechanism through which these compounds contribute to liver injury. CONCLUSION In the HFHC model of NAFLD, manipulation of dietary AGEs modulates liver injury, inflammation, and liver fibrosis via a RAGE dependent pathway. This suggests that pharmacological and dietary strategies targeting the AGE/RAGE pathway could slow the progression of NAFLD. | Christopher Leung Chandana B Herath Zhiyuan Jia Sof Andrikopoulos Bronwyn E Brown Michael J Davies Leni R Rivera John B Furness Josephine M Forbes Peter W Angus | 2016 | World Journal of Gastroenterology2016,22,35: | 7 |
| 2 | Fecal immunochemical test accuracy in average-risk colorectal cancer screening显示文摘AIM:To assess the fecal immunochemical test(FIT)accuracy for colorectal cancer(CRC)and advanced neoplasia(AN)detection in CRC screening.METHODS:We performed a multicentric,prospective,double blind study of diagnostic tests on asymptomatic average-risk individuals submitted to screening colonoscopy.Two stool samples were collected and the fecal hemoglobin concentration was determined in the first sample(FIT1)and the highest level of both samples(FITmax)using the OC-sensor.Areas under the curve(AUC)for CRC and AN were calculated.The best FIT1and FITmax cut-off values for CRC were determined.At this threshold,number needed to scope(NNS)to detect a CRC and an AN and the cost per lesion detected were calculated.RESULTS:About 779 individuals were included.An AN was found in 97(12.5%)individuals:a CRC in 5(0.6%)and an advanced adenoma(≥10 mm,villous histology or high grade dysplasia)in 92(11.9%)subjects.For CRC diagnosis,FIT1 AUC was 0.96(95%CI:0.95-0.98)and FITmax AUC was 0.95(95%CI:0.93-0.97).For AN,FIT1 and FITmax AUC were similar(0.72,95%CI:0.66-0.78 vs 0.73,95%CI:0.68-0.79,respectively,P=0.34).Depending on the number of determinations and the positivity threshold cut-off used sensitivity for AN detection ranged between 28%and 42%and specificity between 91%and 97%.At the best cut-off point for CRC detection(115 ng/mL),the NNS to detect a CRC were 10.2 and 15.8;and the cost per CRC was 1814€and 2985€on FIT1 and FITmax strategies respectively.At this threshold the sensitivity,NNS and cost per AN detected were 30%,1.76,and 306€,in FIT1 strategy,and 36%,2.26€and 426€,in FITmax strategy,respectively.CONCLUSION:Performing two tests does not improve diagnostic accuracy,but increases cost and NNS to detect a lesion. | Vicent Hernandez Joaquin Cubiella M Carmen Gonzalez-Mao Felipe Iglesias Concepción Rivera M Begoa Iglesias Lucía Cid Ines Castro Luisa de Castro Pablo Vega Jose Antonio Hermo Ramiro Macenlle Alfonso Martínez-Turnes David Martínez-Ares Pamela Estevez Estela Cid M Carmen Vidal Angeles López-Martínez Elisabeth Hijona Marta Herreros-Villanueva Luis Bujanda Jose Ignacio Rodriguez-Prada the COLONPREV study investigators | 2014 | World Journal of Gastroenterology2014,20,4: | 4 |
| 3 | Aminoguanidine impedes human pancreatic tumor growth and metastasis development in nude mice显示文摘AIM:To study the action of aminoguanidine on pancreatic cancer xenografts in relation to cell proliferation,apoptosis,redox status and vascularization.METHODS:Xenografts of PANC-1 cells were developed in nude mice. The animals were separated into two groups:control and aminoguanidine treated. Tumor growth,survival and appearance of metastases were determined in vivo in both groups. Tumors were excised and ex vivo histochemical studies were performed. Cell growth was assessed by Ki-67 expression. Apoptosis was studied by intratumoral expression of B cell lymphoma-2 protein (Bcl-2) family proteins and Terminal deoxynucleotidyl transferase biotin-dUTP Nick End Labeling (Tunel). Redox status was evaluated by the expression of endothelial nitric oxide synthase (eNOS),catalase,copper-zinc superoxide dismutase (CuZnSOD),manganese superoxide dismutase (MnSOD) and glutathione peroxidase (GPx). Finally,vascularization was determined by Massons trichromic staining,and by VEGF and CD34 expression.RESULTS:Tumor volumes after 32 d of treatment by aminoguanidine (AG) were significantly lower than in control mice (P < 0.01). Median survival of AG mice was significantly greater than control animals (P < 0.01). The appearance of both homolateral and contralateral palpable metastases was significantly delayed in AG group. Apoptotic cells,intratumoral vascularization (trichromic stain) and the expression of Ki-67,Bax,eNOS,CD34,VEGF,catalase,CuZnSOD and MnSOD were diminished in AG treated mice (P < 0.01),while the expression of Bcl-2 and GPx did not change.CONCLUSION:The antitumoral action of aminoguanidine is associated with decreased cell proliferation,reduced angiogenesis,and reduced expression of antioxidant enzymes. | Nora A Mohamad Graciela P Cricco Lorena A Sambuco Máximo Croci Vanina A Medina Alicia S Gutiérrez Rosa M Bergoc Elena S Rivera Gabriela A Martín | 2009 | World Journal of Gastroenterology2009,15,9: | 3 |
| 4 | Accuracy of biometric formulae for intraocular lens power calculation in a teaching hospital显示文摘AIM: To evaluate the accuracy of three commonly used biometric formulae across different axial lengths(ALs) at one United States Veterans Affairs teaching hospital.METHODS: A retrospective chart review was conducted from November 2013 to May 2018. One eye of each patient who underwent cataract surgery with a monofocal intraocular lens(IOL) was included. The range of postoperative follow-up period was from 3 wk to 4 mo. The Holladay 2, Barrett Universal II, and Hill-Radial Basis Function(Hill-RBF) formulae were used to predict the postoperative refraction for all cataract surgeries. For each formula, we calculated the prediction errors [including mean absolute prediction error(MAE)] and the percentage of eyes within ±0.25 diopter(D) and ±0.5 D of predicted refraction. We performed subgroup analyses for short(AL<22.0 mm), medium(AL 22.0-25.0 mm), and long eyes(AL>25.0 mm).RESULTS: A total of 1131 patients were screened, and 909 met the inclusion criteria. Resident ophthalmologists were the primary surgeons in 710(78.1%) cases. We found no statistically significant difference in predictive accuracy among the three formulae over the entire AL range or in the short, medium, and long eye subgroups. Across the entire AL range, the Hill-RBF formula resulted in the lowest MAE(0.384 D) and the highest percentage of eyes with postoperative refraction within ±0.25 D(42.7%) and ±0.5 D(75.5%) of predicted. All three formulae had the highest MAEs(>0.5 D) and lowest percentage within ±0.5 D of predicted refraction(<55%) in short eyes.CONCLUSION: In cataract surgery patients at our teaching hospital, three commonly used biometric formulae demonstrate similar refractive accuracy across all ALs. Short eyes pose the greatest challenge to predicting postoperative refractive error. | Kevin S Tang Elaine M Tran Allison J Chen David R Rivera Jorge J Rivera Paul B Greenberg | 2020 | International Journal of Ophthalmology(English edition)2020,13,1: | 3 |
| 5 | Internal mode control-PID control design显示文摘 | RIVERA D E MORARI M SKOGESTAD S | 1986 | Ind Eng Chem Process Des Dev1986,25,: | 2 |
| 6 | Application of games with incomplete information for pricing electricity in deregulated power pools显示文摘 | Ferrero R W Rivera J F Shahidehpour S M | 1998 | IEEE Trans on Power Systems1998,13,1: | 2 |
| 7 | Determination of microcystin variants and related peptides present in a water bloom of Planktothrix ( Oscillatoria ) rubescens in a Spanish drinking water reservoir by LC/ESI-MS显示文摘 | Mónica Barco Cintia Flores Josep Rivera Josep Caixach | 2004 | Toxicon2004,,8: | 2 |
| 8 | Clinical significance of'anti-HBc alone'in human immunodeficiency virus-positive patients显示文摘AIM:To determine the prevalence and clinical relevance of isolated antibodies to hepatitis B core antigen as the only marker of infection('anti-HBc alone')among human immunodeficiency virus(HIV) type-1 infected patients.Occult hepatitis B infection frequency was also evaluated. METHODS:Three hundred and forty eight histories from 2388 HIV-positive patients were randomly reviewed.Patients with serological markers of hepatitis B virus(HBV)infection were classified into three groups:past hepatitis,'anti-HBc alone'and chronic hepatitis.Determination of DNA from HBV,and RNA and genotype from hepatitis C virus(HCV)were performed on'anti-HBc alone'patients. RESULTS:One hundred and eighty seven(53.7%) HIV-positive patients had markers of HBV infection: 118 past infection(63.1%),14 chronic hepatitis (7.5%)and 55'anti-HBc alone'(29.4%).Younger age[2.3-fold higher per every 10 years younger;95% confidence intervals(CI)1.33-4.00]and antibodies to HCV infection[odds ratio(OR)2.87;95%CI 1.10-7.48]were factors independently associated with the'anti-HBc alone'pattern.No differences in liver disease frequency were detected between both groups. Serum levels of anti-HBs were not associated with HCV infection(nor viral replication or HCV genotype),or with HIV replication or CD4 level.No'anti-HBc alone' patient tested positive for HBV DNA. CONCLUSION:'Anti-HBc alone'prevalence in HIVpositive patients was similar to previously reported data and was associated with a younger age and with antibodies to HCV infection.In clinical practice,HBV DNA determination should be performed only in those patients with clinical or analytical signs of liver injury. | M~aTeresa Pérez-Rodríguez Bernardo Sopea Manuel Crespo Alberto Rivera Teresa González del Blanco Antonio Ocampo César Martínez-Vázquez | 2009 | World Journal of Gastroenterology2009,15,10: | 2 |
| 9 | Histone H3 lysine 4 monomethylation modulates long- range chromatin interactions at enhancers显示文摘在 enhancers 和倡导者之间的远程的染色质相互作用为在哺乳动物和另外的 metazoans 的许多发展地控制的基因的抄写是必要的。当前,把远侧的 enhancers 连接到他们的特定的目标倡导者的准确机制尚待充分被阐明。这里,我们证明 4 monomethylation (H3K4me1 )(MLL3/4 ) 和 histone methyltransferases MLL3 和 MLL4 玩的提高特定的 histone H3 离氨酸在这个过程的一个活跃角色。我们在区分老鼠表明那胚胎的干细胞,在 enhancers 的 H3K4me1 的 MLL3/4-dependent 免职与染色质相互作用的增加的层次相关,而这 histone 修正的损失在区别期间在基因激活导致染色质相互作用和缺点的减少的层次。H3K4me1 便于 Cohesin 建筑群的招募,染色质组织的一个已知的管理者到在 vitro 并且在 vivo 的染色质,提供潜在的机制让 MLL3/4 支持在 enhancers 和倡导者之间的染色质相互作用。一起拿,我们的结果在在哺乳动物的房间在 enhancers 安排远程的染色质相互作用为 MLL3/4-dependent H3K4me1 支持一个角色。 | Jian Yan Shi-An A Chen Andrea Local Tristin Liu Yunjiang Qiu Kristel M Dorighi Sebastian Preissl Chloe M Rivera Chaochen Wang Zhen Ye Kai Ge Ming Hu Joanna Wysocka Bing Ren | 2018 | Cell Research2018,28,2: | 2 |
| 10 | Apolymorphism in thealpha2a- adrenoceptor gene and enduiance athlete status 显示文摘 | Wlofatth B Rivera M A Oppert J M | 2000 | Mid Sci sports Exerc2000,32,10: | 1 |
| 11 | 2-Week triple therapy for Helicobacter pylori infection is better than 1-week in clinical Practice: a large prospective single-center randomized st udy显示文摘 | Paoluzi P Iacopini F Crispino P Nardi F Bella A Rivera M Rossi P Gurnari M Caracciolo F Zippi M Pica R | 2006 | Helicobacter2006,11,: | 1 |
| 12 | Neo-clerodane diterpenoids and other constituents from Baccharis species 显示文摘 | Faini F Rivera P Mah M | 1987 | Phytochemistry1987,26,: | 1 |
| 13 | Novel process for low temperature crystallization of a-SiC: H for optoelectronic applications显示文摘 | Hossain M Perez J R S Rivera J M R | 2009 | Journal of Materials Science2009,20,: | 1 |
| 14 | Quadratic regularization functionals for phase unwrapping显示文摘 | MARROQUIN J L RIVERA M | 1995 | J O S A1995,12,11: | 1 |
| 15 | Deposition and characterization of cerium oxide conversion coatings on aluminum alloy 7075-T6 显示文摘 | RIVERA B F OHNSONB Y J O'KEEFE M J | 2004 | Surface and Coatings Technology2004,176,3: | 1 |
| 16 | PhaseⅡtrial of preoperative irinotecancisplatin followed by concurrent irinotecancisplatin and radio-therapy for respectable locally advanced gastric and esophagogastric junction adenocarcinoma显示文摘 | Rivera F Galán M Tabernero J | 2009 | Int J Radiat Oncol Biol Phys2009,75,5: | 1 |
| 17 | Enterobacterial repetitive intergenic consensus sequences and the PCR to generate fingerprints of genomic DNAs from Vibrio cholerae O1,O139,and non-O1 strains显示文摘 | Rivera I G M A R Chowdhury A Huq | 1995 | Appl Environ Microbiol1995,61,: | 1 |
| 18 | Musa genetic diversityrevealed by SRAP and AFLP显示文摘 | Youssef M James A C Rivera M R | 2011 | Molecular Biotechnology2011,47,3: | 1 |
| 19 | Studies on the occurrence of non-enzymatic browning during storage of citrus juice显示文摘 | ROIGA M G BELLOB J F RIVERA Z S | | 0,,9: | 1 |
| 20 | Hartmannella vermiformis isolated from the cerebrospinal fluid of a young male patient with meningoencephalitis and bronchopneumonia显示文摘 | Centeno M Rivera F Cerva L | 1996 | Archives of Medical Research1996,27,4: | 1 |