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| 1 | IL28B polymorphisms associated with therapy response in Chilean chronic hepatitis C patients显示文摘AIM:To analyze the association of three IL28B single nucleotide polymorphisms with response to therapy in Chilean patients infected with hepatitis C virus CV.METHODS:We studied two groups of patients with chronic CV infection genotype 1,under standard combined treatment with pegylated interferon plus ribavirin.One group consisted of 50 patients with sustained virological response,whereas the second group consisted of 49 null responders.In order to analyze the IL28B single nucleotide polymorphisms rs12979860,rs12980275 and rs8099917,samples were used for polymerase chain reaction amplification,and the genotyping was performed by restriction fragment lengthpolymorphism.RESULTS:The IL28B rs12979860 CC,rs12980275 AA and rs8099917 TT genotypes were much more frequently found in patients with sustained virological response compared to null responders 38%,44% and 50% vs 2%,8.2% and 8.2%,respectively.These differences were highly significant in all three cases(P < 0.0001.CONCLUSION:The three IL28B polymorphisms studied are strongly associated with sustained virological response to therapy in Chilean patients with chronic CV genotype 1. | Mauricio Venegas Rodrigo A Villanueva Katherine González Javier Brahm | 2011 | World Journal of Gastroenterology2011，17，31： | 13 |
| 2 | Gallstone ileus,clinical presentation,diagnostic and treatment approach显示文摘Gallstone ileus is a mechanical intestinal obstruction due to gallstone impaction within the gastrointestinal tract. Less than 1% of cases of intestinal obstruction are derived from this etiology. The symptoms and signs of gallstone ileus are mostly nonspecific. This entity has been observed with a higher frequency among the elderly, the majority of which have concomitant medical illness. Cardiovascular, pulmonary, and metabolic diseases should be considered as they may affect the prognosis. Surgical relief of gastrointestinal obstruction remains the mainstay of operative treatment. The current surgical procedures are:(1) simple enterolithotomy;(2) enterolithotomy, cholecystectomy and fistula closure(one-stage procedure); and(3) enterolithotomy with cholecystectomy performed later(two-stage procedure). Bowel resection is necessary in certain cases after enterolithotomy is performed. Large prospective laparoscopic and endoscopic trials are expected. | carlos m nuno-guzmán maría eugenia marín-contreras mauricio figueroa-sánchez jorge l corona | 2016 | World Journal of Gastrointestinal Surgery2016，8，1： | 11 |
| 3 | Glucocorticosteroid therapy in inflammatory bowel diseases: From clinical practice to molecular biology显示文摘Inflammatory bowel diseases(IBDs),such as ulcerative colitis and Crohn's disease,are chronic pathologies associated with a deregulated immune response in the intestinal mucosa,and they are triggered by environmental factors in genetically susceptible individuals.Exogenous glucocorticoids(GCs)are widely used as anti-inflammatory therapy in IBDs.In the past,patients with moderate or severe states of inflammation received GCs as a first line therapy with an important effectiveness in terms of reduction of the disease activity and the induction of remission.However,this treatment often results in detrimental side effects.This downside drove the development of second generation GCs and more precise(non-systemic)drugdelivery methods.Recent clinical trials show that most of these new treatments have similar effectiveness to first generation GCs with fewer adverse effects.The remaining challenge in successful treatment of IBDs concerns the refractoriness and dependency that some patients encounter during GCs treatment.A deeper understanding of the molecular mechanisms underlying GC response is key to personalizing drug choice for IBDs patients to optimize their response to treatment.In this review,we examine the clinical characteristics of treatment with GCs,followed by an in depth analysis of the proposed molecular mechanisms involved in its resistance and dependence associated with IBDs.This thorough analysis of current clinical and biomedical literature may help guide physicians in determining a course of treatment for IBDs patients and identifies important areas needing further study. | Karen Dubois-Camacho Payton A Ottum Daniel Franco-Munoz Marjorie De la Fuente Alejandro Torres-Riquelme David Díaz-Jiménez Mauricio Olivares-Morales Gonzalo Astudillo Rodrigo Quera Marcela A Hermoso | 2017 | World Journal of Gastroenterology2017，23，36： | 6 |
| 4 | Pancreatitis after endoscopic retrograde cholangiopancreatography:A narrative review显示文摘Acute post-endoscopic retrograde cholangiopancreatography pancreatitis(PEP)is a feared and potentially fatal complication that can be as high as up to 30%in high-risk patients.Pre-examination measures,during the examination and after the examination are the key to technical and clinical success with a decrease in adverse events.Several studies have debated on the subject,however,numerous topics remain controversial,such as the effectiveness of prophylactic medications and the amylase dosage time.This review was designed to provide an update on the current scientific evidence regarding PEP available in the literature. | Igor Braga Ribeiro Epifanio Silvino do Monte Junior Antonio Afonso Miranda Neto Igor Mendonça Proença Diogo Turiani Hourneaux de Moura Mauricio Kazuyoshi Minata Edson Ide Marcos Eduardo Lera dos Santos Gustavo de Oliveira Luz Sergio Eiji Matuguma Spencer Cheng Renato Baracat Eduardo Guimarães Hourneaux de Moura | 2021 | World Journal of Gastroenterology2021，27，20： | 5 |
| 5 | Human papilloma virus and esophageal carcinoma in a Latin-American region显示文摘AIM:To investigate the presence of high-risk human papilloma virus (HPV) in esophageal squamous cell carcinomas (ESCCs) in a non-selected Mexican population.METHODS: Cases with a pathological diagnosis of squamous cell carcinoma of the esophagus were obtained from Department of Pathology files, at the National Cancer Institute in Mexico City during the period between 2000 and 2008. Slides from each case were reviewed and cases with sufficient neoplastic tissue were selected for molecular analysis. DNA was extracted from paraffin-embedded tissue samples for polymerase chain reaction analysis to detect HPV DNA sequences. Demographic and clinical data of each patient were retrieved from corresponding clinical records.RESULTS: HPV was detected in 15 (25%) of ESCCs. HPV-16 was the most frequently observed genotype, followed by HPV-18; HPV-59 was also detected in one case. Unfortunately, HPV genotype could not be established in three cases due to lack of material for direct sequencing, although universal primers detected the presence of HPV generic sequences. No low-risk HPV genotypes were found nor was HPV-16/18 co-infection. HPV presence in ESCC was not significantly associated with gender, age, alcohol consumption, smoking, anatomic location, or histologic grade. All patients belonged to low and very low socioeconomic strata, and were diagnosed at advanced disease stage. Male patients were most commonly affected and the male:female ratio in HPV-positive ESCC increased two- fold in comparison with HPV-negative cases (6.5:1 vs 3.1:1).CONCLUSION: High prevalence of high-risk HPV in ESCC in Mexico does not support the hypothesis that HPV-associated ESCC is more common in areas with higher ESCC incidence rates. | Roberto Herrera-Goepfert Marcela Lizano Suminori Akiba Adela Carrillo-García Mauricio Becker-D'Acosta | 2009 | World Journal of Gastroenterology2009，15，25： | 4 |
| 6 | Effects of asymmetric dimethylarginine on renal arteries in portal hypertension and cirrhosis显示文摘AIM To evaluate the effects of asymmetric dimethylarginine(ADMA) in renal arteries from portal hypertensive and cirrhotic rats.METHODS Rat renal arteries from Sham(n = 15), pre-hepatic portal hypertension(PPVL; n = 15) and bile duct ligation and excision-induced cirrhosis(BDL; n = 15) were precontracted with norepinephrine, and additional contractions were induced with ADMA(10-6-10-3 mol/L), an endogenous inhibitor of nitric oxide(NO) synthase. Concentration-response curves to acetylcholine(1 × 10-9^(-3) × 10^(-6) mol/L) were determined in precontractedrenal artery segments with norepinephrine in the absence and in the presence of ADMA. Kidneys were collected to determine the protein expression and activity of dimethylarginine dimethylaminohydrolase(DDAH), an enzyme that catabolizes ADMA. RESULTS In renal arteries precontracted with norepinephrine, ADMA caused endothelium-dependent contractions. The pD 2 values to ADMA were similar in the Sham and PPVL groups(4.20 ± 0.08 and 4.11 ± 0.09, P > 0.05, respectively), but were lower than those of the BDL group(4.79 ± 0.16, P < 0.05). Acetylcholine-induced endothelium-dependent relaxation that did not differ, in terms of p D2 and maximal relaxation, among the 3 groups studied. Treatment with ADMA(3 × 10^(-4) mol/L) inhibited acetylcholine-induced relaxation in the 3 groups, but the inhibition was higher(P < 0.05) in the BDL group compared with that for the Sham and PPVL groups. The m RNA and protein expression of DDAH-1 were similar in kidneys from the three groups. Conversely, DDAH-2 expression was increased(P < 0.05) in PPVL and further enhanced(P < 0.05) in the BDL group. However, renal DDAH activity was significantly decreased in the BDL group. CONCLUSION Cirrhosis increased the inhibitory effect of ADMA on basal- and induced-release of NO in renal arteries, and decreased DDAH activity in the kidney. | Gloria Segarra Belén Cortina María Dolores Mauricio Susana Novella Paloma Lluch Javier Navarrete-Navarro Inmaculada Noguera Pascual Medina | 2016 | World Journal of Gastroenterology2016，22，48： | 3 |
| 7 | Multicarrier PWM with DC-link ripple feedforward for multilevel inverters 显示文摘 | SAMIR K PABLO L MAURICIO A | 2008 | IEEE Trans Power Electron2008，23，1： | 1 |
| 8 | Software sensor-based STATCOM control under unbalanced conditions显示文摘 | LEON A E MAURICIO J M SOLSONA J A | 2009 | IEEE Trans on Power Delivery2009，24，3： | 1 |
| 9 | A brief discussion on (pure mode I ) fatigue crack growth rate data in 5HS weave fabric composites: evaluation of empirical relations显示文摘 | MARCOS Y S REYNDERT C A MAURICIO V D | 2015 | International Journal of Fatigue2015，84，： | 1 |
| 10 | Simultaneous oxidation and reduction of arsenic by zero-valent iron nanoparticles: Understanding the significance of the core-shell structure显示文摘 | Ramos Mauricio A V Yan Weile Li Xiaoqin | 2009 | Journal of Physical Chemistry C2009，113，33： | 1 |
| 11 | Synergistic induction of apoptosis by the combination of trail and chemotherapy in chemoresistant ovarian cancer cells显示文摘 | Mauricio Cuello Seth A Ettenberg Marion M Nau | 2001 | Gynecol Oncol2001，81，3： | 1 |
| 12 | Parallel scalability and efficiency of HEVC parallelization approaches 显示文摘 | Chi C C Mauricio A M Juurlink B | 2012 | IEEE Trans on Circuits and Systems for Video Technology2012，22，12： | 1 |
| 13 | Breast cancer,lactation history, and serum organochlorines显示文摘 | Isabelle R Mauricio H A Eduardo L P | 2000 | American Journal of Epidemiology2000，152，4： | 1 |
| 14 | A framework for measuring logistics performance in the wine industry 显示文摘 | FERNANDA A GARCIA MARTIN G MARCHETTA MAURICIO CAMARGO | 2012 | International Journal of Production Eco- nomics2012，，135： | 1 |
| 15 | Ultrasound-assisted extraction of soy isoflavones显示文摘 | Mauricio A Rostagno Miguel Palma Carmelo G Barroso | 2003 | Ultrasonics Sonochemistry2003，1012，： | 1 |
| 16 | Frequency regulation contribution through variable speed wind energy conversion systems显示文摘 | MAURICIO J M MARANO A EXPOSITO A G | 2009 | IEEE Trans on Power Systems2009，24，1： | 1 |
| 17 | Frequency regulation contribution through variable-speed wind energy conversion systems显示文摘 | Mauricio J M Marano A Gó mez-Expó sito A | 2009 | IEEE Transactions on Power Systems2009，24，1： | 1 |
| 18 | Impact of dietary fibersmethyl cellulose,chitosan,and pectin on digestion of lipids under simulated gastrointestinal conditions显示文摘 | Mauricio E R Fabian P A Mcclements D J | 2014 | Food & Function2014，5，12： | 1 |
| 19 | QTL affecting body weight in a candidate region of cattle chromosome 5显示文摘 | Mauricio M Alencar Andréa P Pereira | 2003 | Genetics and Molecular Biology2003，26，3： | 1 |
| 20 | Supercritical fluid extraction of isoflavones from soybean flour显示文摘 | Rostagno Mauricio A Araujo Julio M A Sandi Delcio | 2002 | Food Chemistry2002，78，1： | 1 |
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