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| 1 | Human papillomavirus in esophageal squamous cell carcinoma in Colombia and Chile显示文摘AIM: To examine the presence of human papillomavirus (HPV) in esophageal squamous cell carcinoma (ESCC) specimens collected from Colombia and Chile located in the northern and southern ends of the continent, respectively. METHODS: We examined 47 and 26 formalin-fixed and paraffin-embedded ESCC specimens from Colombia and Chile, respectively. HPV was detected using GP5+/GP6+ primer pair for PCR, and confirmed by Southern blot analysis. Sequencing analysis of L1 region fragment was used to identify HPV genotype. In addition, P16INK4A protein immunostaining of all the specimens was conducted. RESULTS: HPV was detected in 21 ESCC specimens (29%). Sequencing analysis of L1 region fragment identified HPV-16 genome in 6 Colombian cases(13%) and in 5 Chilean cases (19%). HPV-18 was detected in 10 cases (21%) in Colombia but not in any Chilean case. Since Chilean ESCC cases had a higher prevalence of HPV-16 (without statistical significance), but a significantly lower prevalence of HPV-18 than in Colombian cases (P = 0.011) even though the two countries have similar ESCC incidence rates, the frequency of HPV-related ESCC may not be strongly affected by risk factors affecting the incidence of ESCC. HPV-16 genome was more frequently detected in p16 positive carcinomas, although the difference was not statistically significant. HPV-18 detection rate did not show any association with p16 expression. Well-differentiated tumors tended to have either HPV-16 or HPV-18 but the association was not statistically significant. HPV genotypes other than HPV-16 or 18 were not detected in either country. CONCLUSION: HPV-16 and HPV-18 genotypes can be found in ESCC specimens collected from two South American countries. Further studies on the relationship between HPV-16 presence and p16 expression in ESCC would aid understanding of the mechanism underlying the presence of HPV in ESCC. | Andres Castillo Francisco Aguayo Chihaya Koriyama Miyerlandi Torres Edwin Carrascal Alejandro Corvalan Juan P Roblero Cecilia Naquira Mariana Palma Claudia Backhouse Jorge Argandona Tetsuhiko Itoh Karem Shuyama Yoshito Eizuru Suminori Akiba | 2006 | World Journal of Gastroenterology2006，12，38： | 11 |
| 2 | Differential colorectal carcinogenesis:Molecular basis and clinical relevance显示文摘Colorectal cancer(CCR) is one of the most frequent cancers in developed countries.It poses a major public health problem and there is renewed interest in understanding the basic principles of the molecular biology of colorectal cancer.It has been established that sporadic CCRs can arise from at least two different carcinogenic pathways.The traditional pathway,also called the suppressor or chromosomal instability pathway,follows the Fearon and Vogelstein model and shows mutation in classical oncogenes and tumour suppressor genes,such as K-ras,adenomatous polyposis coli,deleted in colorectal cancer,or p53.Alterations in the Wnt pathway are also very common in this type of tumour.The second main colorectal carcinogenesis pathway is the mutator pathway.This pathway is present in nearly 15% of all cases of sporadic colorectal cancer.It is characterized by the presence of mutations in the microsatellite sequences caused by a defect in the DNA mismatch repair genes,mostly in hMLH1 or hMSH2.These two pathways have clear molecular differences,which will be reviewed in this article,but they also present distinct histopathological features.More strikingly,their clinical behaviours are completely different,having the 'mutator' tumours a better outcome than the 'suppressor' tumours. | Alberto Morán Paloma Ortega Carmen de Juan Tamara Fernández-Marcelo Cristina Frías Andrés Sánchez-Pernaute Antonio José Torres Eduardo Díaz-Rubio Pilar Iniesta Manuel Benito | 2010 | World Journal of Gastrointestinal Oncology2010，2，3： | 5 |
| 3 | Clinical scenarios for the use of S100β as a marker of hepatic encephalopathy显示文摘AIM: To evaluate the association between serum concentrations of S100β in patients with cirrhosis and the presence of low grade hepatic encephalopathy(HE).METHODS: This was a cross-sectional study. The population was categorized into four groups healthy subjects, cirrhosis without HE, cirrhosis with covert hepatic encephalopathy(CHE) and cirrhosis with overt HE. Kruskal-Wallis, Mann Whitney's U with Bonferroni adjustment Spearman correlations and area under the ROC were used as appropriate.RESULTS: A total of 61 subjects were included, 46 cirrhotic patients and 15 healthy volunteers. S100β values were different among all groups, and differences remained significant between groups 1 and 2(P < 0.001), and also between groups 2 and 3(P = 0.016), but not between groups 3 and 4. In cirrhotic patients with HE S100β was higher than in patients without HE [0.18(0.14-0.28) ng/m L vs 0.11(0.06-0.14) ng/m L, P < 0.001]. There was a close correlation between serum concentrations of S100β and psychometric hepatic encephalopathy score in patients with cirrhosis without HE compared to the patients with cirrhosis with CHE(r =-0.413, P = 0.019). ROC curve analysis yielded > 0.13 ng/m L as the best cutoff value of S100β for the diagnosis of HE(sensitivity 83.3%, specificity 63.6%).CONCLUSION: Serum concentrations of S100β are higher in patients with cirrhosis than in healthy volunteers, and are further increased in the presence of hepatic encephalopathy. The results suggest that serum biomarkers such as S100β could help in the correct characterization of incipient stages of HE. | Andrés Duarte-Rojo Astrid Ruiz-Margáin Ricardo U Macias-Rodriguez Francisco Javier Cubero José Estradas-Trujillo Rosa Ma Munoz-Fuentes Aldo Torre | 2016 | World Journal of Gastroenterology2016，22，17： | 4 |
| 4 | Low phase angle is associated with the development of hepatic encephalopathy in patients with cirrhosis显示文摘AIM Evaluate the association between phase angle and the development of hepatic encephalopathy in the longterm follow-up of cirrhotic patients.METHODS This was a prospective cohort study. Clinical, nutritional and biochemical evaluations were performed. MannWhitney's U and χ2 tests were used as appropriate. Kaplan-Meier curves and Cox proportional Hazards analysis were used to evaluate the prediction and incidence of hepatic encephalopathy.RESULTS Two hundred and twenty were included; the most frequent etiology of cirrhosis was hepatitis C infection, 52% of the patients developed hepatic encephalopathy(18.6% covert and 33.3% overt); the main precipitating factors were infections and variceal bleeding. KaplanMeier curves showed a higher proportion of HE in the group with low phase angle(39%) compared to the normal phase angle group(13%)(P = 0.012). Furthermore, creatinine and phase angle remained independently associated to hepatic encephalopathy in the Cox regression multivariate analysis [hazard ratio = 1.80(1.07-3.03)]. CONCLUSION In our cohort of patients low phase angle was associated with an increased incidence of hepatic encephalopathy. Phase angle is a useful nutritional marker that evaluates cachexia and could be used as a part of the integral assessment in patients with cirrhosis. | Astrid Ruiz-Margáin Ricardo Ulises Macías-Rodríguez Javier Ampuero Francisco Javier Cubero Luis Chi-Cervera Silvia L Ríos-Torres Andrés Duarte-Rojo Ángeles Espinosa-Cuevas Manuel Romero-Gómez Aldo Torre | 2016 | World Journal of Gastroenterology2016，22，45： | 4 |
| 5 | Fast preparation route to high-performances textured Sr-doped Ca_3Co_4O_9 thermoelectric materials through precursor powder modification显示文摘This work presents a short and very efficient method to produce high performance textured Ca_3Co_4O_9 thermoelectric materials through initial powders modification. Microstructure has shown good grain orientation, and low porosity while slightly lower grain sizes were obtained in samples prepared from attrition milled powders. All samples show the high density of around 96% of the theoretical value.These similar characteristics are reflected in, approximately,the same electrical resistivity and Seebeck coefficient values for both types of samples. However, in spite of similar power factor(PF) at low temperatures, it is slightly higher at high temperature for the attrition milled samples. On the other hand, the processing time reduction(from 38 to 2 h) when using attrition milled precursors, leads to lower mechanical properties in these samples. All these data clearly point out to the similar characteristics of both kinds of samples, with a drastic processing time decrease when using attrition milled precursors, which is of the main economic importance when considering their industrial production. | Miguel Angel Torres Gustavo Garcia Idoia Urrutibeascoa Maria Antonieta Madre Juan Carlos Diez Andres Sotelo | 2019 | Science China Materials2019，62，3： | 2 |
| 6 | Eltrombopag Increases Platelet Numbers in Thrombocytopenic Patients With HCV Infection and Cirrhosis, Allowing for Effective Antiviral Therapy显示文摘 | Nezam H. Afdhal Geoffrey M. Dusheiko Edoardo G. Giannini Pei–Jer Chen Kwang–Hyub Han Aftab Mohsin Maribel Rodriguez–Torres Sorin Rugina Igor Bakulin Eric Lawitz Mitchell L. Shiffman Ghias–Un–Nabi Tayyab Fred Poordad Yasser Mostafa Kamel Andres Brainsky Ja | 2014 | Gastroenterology2014，，2： | 2 |
| 7 | Debates and Surveys: On the Analytical Dimension of Proximity Dynamics 显示文摘 | Andre Torre Jean-Pierre Gilly | 2000 | Regional Studies2000，34，2： | 1 |
| 8 | Debates and surveys:on the analytical dimension of proximity dynamics显示文摘 | ANDRE TORRE JEAN-PIERRE GILLY | 2000 | Regional Studies2000，34，2： | 1 |
| 9 | Residual Flexure Capacity of Corroded Reinforced Concrete Beams 显示文摘 | ANDRS A TORRES A SERGIO N G | 2007 | Engineering Structures2007，29，6： | 1 |
| 10 | Thermoeconomic tools for the analysis of eco-industrial parks显示文摘 | Antonio Valero Sergio Usón César Torres Alicia Valero Andrés Agudelo Jorge Costa | 2013 | Energy2013，，： | 1 |
| 11 | Debates and surveys:on the analytical dimension of proximity dynamics显示文摘 | ANDRE TORRE JEAN-PIERRE GILLY | 2000 | Regional Studies2000，34，2： | 1 |
| 12 | In situ measurement of trace metals in lake water using the dialysis and DGT techniques显示文摘 | Maria Catalina Alfaro-De la Torre Pierre-Yves Beaulieu André Tessier | 2000 | Analytica Chimica Acta2000，418，1： | 1 |
| 13 | Co-expression of monocarboxylate transporter 1 (MCT1) and its chaperone (CD147) is associated with low survival in patients with gastrointestinal stromal tumors (GISTs)显示文摘 | Ant?nio Talvane Torres Oliveira Céline Pinheiro Adhemar Longatto-Filho Maria Jose Brito Olga Martinho Delcio Matos André Lopes Carvalho Vinícius Lima Vazquez Thiago Buosi Silva Cristovam Scapulatempo Sarhan Sydney Saad Rui Manuel Reis Fátima Baltazar | 2012 | Journal of Bioenergetics and Biomembranes2012，，1： | 1 |
| 14 | Magnetic nanoparticles for power absorption: optimizing size, shape and magnetic properties显示文摘 | Gonzalez-fernandez M Torres T Andr S-verg S M | 2009 | Journal of Solid State Chemistry2009，182，10： | 1 |
| 15 | Laparoscopic approach to esophageal perforation secondary to pneumatic dilation for achalasia显示文摘 | Andrés Sánchez-Pernaute Elia Pérez Aguirre Pablo Talavera Luis Díez Valladares Julio Pérez Serna Concepción Sevilla Mantilla Antonio Ruiz León Antonio Torres | 2009 | Surgical Endoscopy2009，，5： | 1 |
| 16 | The potential of C4 grasses for cellulosic biofuel produc tion显示文摘 | Tim van der Weijde Claire L Alvim Kamei Andres F Torres | 2013 | Frontiers in Plant Science2013，4，107： | 1 |
| 17 | Relationships between gender, age, family conditions, physical and mental health, and social isolation of elderly caregivers显示文摘 | Anita Liberalesso Neri M?nica Sanches Yassuda Andréa Cristina Garofe Fortes-Burgos Efigênia Passarelli Mantovani Flávia Silva Arbex Stella Vidal de Souza Torres M?nica Rodrigues Perracini Maria Elena Guariento | 2011 | International Psychogeriatrics2011，，3： | 1 |
| 18 | Statistical models to predict type 2 diabetes remission after bariatric surgery显示文摘 | Ana M Ramos-Levi Pilar Matia Lucio Cabrerizo Ana Barabash Andres Sanchez-Pernaute Alfonso L CallePascual Antonio J Torres Miguel A Rubio | 2014 | Journal of diabetes2014，6，5： | 1 |
| 19 | Airborne particulate matter from livestock production systems: A review of an air pollution problem显示文摘 | María Cambra-López André J.A. Aarnink Yang Zhao Salvador Calvet Antonio G. Torres | 2009 | Environmental Pollution2009，，1： | 1 |
| 20 | Co-expression of monocarboxylate transporter 1 (MCT1) and its chaperone (CD147) is associated with low survival in patients with gastrointestinal stromal tumors (GISTs)显示文摘 | Ant?nio Talvane Torres Oliveira Céline Pinheiro Adhemar Longatto-Filho Maria Jose Brito Olga Martinho Delcio Matos André Lopes Carvalho Vinícius Lima Vazquez Thiago Buosi Silva Cristovam Scapulatempo Sarhan Sydney Saad Rui Manuel Reis Fátima Baltazar | 2012 | Journal of Bioenergetics and Biomembranes2012，，1： | 1 |
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