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Metabolic syndrome and colorectal neoplasms:An ominous association

World Journal of Gastroenterology 2015年第17期21卷 5320-5327页

作者： Daniel Trabulo Suzane Ribeiro Cláudio Martins Cristina Teixeira Cláudia Cardoso Jo?o Mangualde ricardo freire élia Gamito Ana L Alves Fátima Augusto Ana P Oliveira Isabelle Cremers Gastroenterology Department Hospital de S?o BernardoCentro Hospitalar de Setúbal2910-446 SetúbalPortugal

AIM:To evaluate the association of metabolic syndrome(MS) and colorectal cancer and adenomas in a Western country,where the incidence of MS is over 27%.METHODS:This was a prospective study between March 2013 and March *** was diagnosed according to the National Cholesterol Education ProgramATP *** characteristics,anthropometric measurements,metabolic risk factors,and colonoscopic pathologic findings were assessed in patients with MS(group 1) who underwent routine colonoscopy at our *** data was compared with consecutive patients without metabolic syndrome(group 2),with no differences regarding sex and *** with incomplete colonoscopy,family history,or past history of colorectal neoplasm were *** consent was obtained and the ethics committee approved this *** analysis was performed using Student's t-test and χ2 test,with a P value ≤ 0.05 being considered statistically ***:Of 258 patients,129 had MS;51% males;mean-age 67.1 years(50-87).Among the MS group,94% had high blood pressure,91% had increased waist circumference,60% had diabetes,55% had low high-density lipoprotein cholesterol level,50% had increased triglyceride level,and 54% were obese [body mass index(BMI) 30 kg/m2].51% presented 4 criteria of *** was associated with increased prevalence of adenomas(43% vs 25%,P = 0.004) and colorectal cancer(13% vs 5%,P = 0.027),compared with patients without *** was also positively associated with multiple(≥ 3) adenomas(35% vs 9%,P = 0.024) and sessile adenomas(69% vs 53%,P = 0.05).No difference existed between location(P = 0.086),grade of dysplasia(P = 0.196),or size(P= 0.841) of *** addition,no difference was found between BMI(P = 0.078),smoking(P = 0.146),alcohol consumption(P = 0.231),and the presence of ***:MS is positively associated with adenomas and colorectal ***,there is not enough information in western European countries to justify screening in

关键词： Metabolic syndrome Colorectal cancer Colorectal adenomas Obesity Western countries

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Systemic mastocytosis: A rare cause of non-cirrhotic portal hypertension

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World Journal of Gastroenterology 2016年第28期22卷 6559-6564页

作者： Cláudio Martins Cristina Teixeira Suzane Ribeiro Daniel Trabulo Cláudia Cardoso Joao Mangualde ricardo freire élia Gamito Ana Luísa Alves Isabelle Cremers Cecília Alves Anabela Neves Ana Paula Oliveira Department of Gastroenterology Setubal Hospital Center - Sao Bernardo Hospital 2910 Setubal Portugal Department of Pathology Setubal Hospital Center - Sao Bernardo Hospital 2910 Setubal Portugal Department of Hematology Setubal Hospital Center - Sao Bernardo Hospital 2910 Setubal Portugal

Mastocytosis is a clonal neoplastic disorder of the mast cells(MC) that can be limited to the skin(cutaneous mastocytosis) or involve one or more extracutaneous organs(systemic mastocytosis). The clinical manifestations of mastocytosis are heterogeneous ranging from indolent disease with a long-term survival to a highly aggressive neoplasm with survival of about 6 mo. Although liver involvement in aggressive systemic mastocytosis(ASM) is relatively common, the development of portal hypertension with or without cirrhosis is rare. We report a case of ASM without skin involvement in a 72-year-old caucasian male who presented with non-cirrhotic portal hypertension based on clinical, analytical, imagiological and endoscopic findings. Given the hematological picture, the correct diagnosis was established based on ancillary tests for MC using bone marrow aspirates and biopsy. Extensive involvement of the liver and gastrointestinal tract was histologically documented. The disease progressed rapidly and severe pancytopenia and recurrent upper gastrointestinal bleeding became the dominant problem. This case illustrates the challenge in establishing a diagnosis of ASM especially when the clinical picture is atypical and without skin involvement. Gastroenterologists should consider infiltrative disease, particularly systemic mastocytosis, as a differential diagnosis in a clinical case of portal hypertension of unknown etiology.

关键词： Systemic mastocytosis Mast cells Non-cirrhotic portal hypertension Upper gastrointestinal bleeding Cladribine

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Appropriateness of outpatient gastrointestinal endoscopy in a non-academic hospital

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World Journal of Gastrointestinal Endoscopy 2011年第10期3卷 195-200页

作者： Joo Mangualde Marie I Cremers Ana M Vieira ricardo freire lia Gamito Cristina Lobato Ana L Alves Fátima Augusto Ana P Oliveira Gastrenterology Department Setúbal Hospital Center So Bernardo Hospital

AIM:To assess the appropriate use and the diagnostic yield of upper gastrointestinal endoscopy and colonoscopy in this subgroup of ***:In total,789 consecutive outpatients referred for gastrointestinal(GI) endoscopy [381 for esophagogastroduodenoscopy(EGD) and 408 for colonoscopy] were prospectively enrolled in the *** American Society for Gastrointestinal Endoscopy(ASGE) guidelines were used to assess the relationship between appropriateness and the presence of relevant endoscopic f ***:The overall inappropriate rate was 13.3%.The indications for EGD and colonoscopy were,respectively,appropriate in 82.7% and 82.6% of the exams,uncertain in 5.8% and 2.4% and inappropriate in 11.5% and 15%.The diagnostic yield was signif icant higher forEGDs and colonoscopies judged appropriate and uncertain when compared with those considered inappropriate(EGD:36.6% vs 36.4% vs 11.4%,P = 0.004;Colonoscopy:24.3% vs 20.0% vs 3.3%,P = 0.001).Of the 25 malignant lesions detected,all but one was detected in exams judged appropriate or ***:This study shows a good adherence to ASGE guidelines by the referring physicians and a significant increase of the diagnostic yield in appropriate examinations,namely in detecting neoplastic *** underscores the importance that the appropriateness of the indication assumes in assuring high-quality GI endoscopic procedures.

关键词： Gastrointestinal endoscopy Indications Appropriateness

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SARS-CoV-2 infection in liver transplant recipients:A complex relationship

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World Journal of Gastroenterology 2021年第44期27卷 7734-7738页

作者： ricardo Wesley Alberca Gil Benard Gabriela Gama freire Alberca Maria Notomi Sato Laboratorio de Dermatologia e Imunodeficiencias(LIM-56) Departamento de Dermatologia e Institute de Medicina TropicalFaculdade de Medicina FMUSPUniversidade de São PauloSão Paulo 01246-903Brazil Laboratorio de Dermatologia e Imunodeficiencias(LIM-56) Departamento de DermatologiaFaculdade de Medicina FMUSPUniversidade de São PauloSão Paulo 01246-903Brazil

The recent manuscript reviewed investigations involving liver damage in coronavirus disease 2019(COVID-19)patients,and COVID-19 in patients with previous chronic hepatological diseases,such as patients with liver *** literature presents several conflicting results concerning the anti-SARS-CoV-2 response in patients with solid organ transplants,in liver transplant ***,we would like to humbly state a few points for consideration involving liver transplant recipients and COVID-19,such as the time since transplantation,comorbidities,and immunosuppressive regimens.

关键词： COVID-19 SARS-CoV-2 Liver transplant Immunosuppression Infection Comorbidities

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Coronavirus disease-2019 and the intestinal tract:An overview

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World Journal of Gastroenterology 2021年第13期27卷 1255-1266页

作者： Gabriela Gama freire Alberca Rosa Liliana Solis-Castro Maria Edith Solis-Castro ricardo Wesley Alberca Department of Microbiology Institute of Biomedical Sciences-University of São PauloSão Paulo 05508-000Brazil Departamento Académico de Biología Bioquímica Facultad de Ciencias de la SaludUniversidad Nacional de TumbesPampa Grande 24000TumbesPeru Departamento Académico de Medicina Humana Facultad de Ciencias de la SaludUniversidad Nacional de TumbesPampa Grande 24000TumbesPeru Laboratorio de Dermatologia e Imunodeficiencias(LIM-56) Departamento de DermatologiaFaculdade de Medicina FMUSPUniversidade de São PauloSão Paulo 01246-903Brazil

Severe acute respiratory syndrome coronavirus-2(SARS-CoV-2) infection can progress to a severe respiratory and systemic disease named coronavirus disease–2019(COVID-19). The most common symptoms are fever and respiratory discomfort. Nevertheless, gastrointestinal infections have been reported, with symptoms such as diarrhea, nausea, vomiting, abdominal pain, and lack of appetite. Importantly, SARS-CoV-2 can remain positive in fecal samples after nasopharyngeal clearance. After gastrointestinal SARS-CoV-2 infection and other viral gastrointestinal infections, some patients may develop alterations in the gastrointestinal microbiota. In addition, some COVID-19 patients may receive antibiotics, which may also disturb gastrointestinal homeostasis. In summary, the gastrointestinal system, gut microbiome, and gut-lung axis may represent an important role in the development, severity, and treatment of COVID-19. Therefore, in this review, we explore the current pieces of evidence of COVID-19 gastrointestinal manifestations, possible implications, and interventions.

关键词： COVID-19 SARS-CoV-2 Gastrointestinal Microbiota Antibiotics

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Intestinal inflammation and the microbiota:Beyond diversity

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World Journal of Gastroenterology 2022年第26期28卷 3274-3278页

作者： Gabriela Gama freire Alberca Naiane Samira Souza Cardoso Rosa Liliana Solis-Castro Viviane Nakano ricardo Wesley Alberca Department of Microbiology Institute of Biomedical SciencesUniversity of São PauloSão Paulo 05508-000Brazil Departamento Académico de Biología Bioquímica Facultad de Ciencias de la SaludUniversidad Nacional de TumbesPampa Grande 24000TumbesPeru Laboratorio de Dermatologia e Imunodeficiencias Departamento de DermatologiaFaculdade de Medicina FMUSPUniversidade de São PauloSão Paulo 01246-903Brazil

The recent manuscript entitled“Relationship between clinical features and intestinal microbiota in Chinese patients with ulcerative colitis”reported a difference in the intestinal microbiota of patients with ulcerative colitis according to the severity of the *** influence of the intestinal microbiota on the development and progress of gastrointestinal disorders is well *** the diversity in the microbiome,the presence of virulence factors and toxins by commensal bacteria may affect an extensive variety of cellular processes,contributing to the induction of a proinflammatory environment.

关键词： Inflammation Microbiota Toxins Intestinal Ulcerative Colitis Cancer

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Role of vitamin D deficiency and comorbidities in COVID-19

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World Journal of Virology 2022年第1期11卷 85-89页

作者： Gabriela Gama freire Alberca ricardo Wesley Alberca Department of Microbiology Institute of Biomedical Sciences-University of São PauloSão Paulo 04307-100Brazil Laboratorio de Dermatologia e Imunodeficiencias(LIM-56) Departamento de DermatologiaFaculdade de Medicina FMUSPUniversidade de São PauloSão Paulo 04307-100Brazil

Recent manuscripts described the incidence of vitamin D hypovitaminosis in coronavirus disease 2019(COVID-19)*** D deficiency is also common in patients with comorbidities that are associated with a poor COVID-19 *** ... 详细信息

关键词： COVID-19 SARS-CoV-2 Comorbidities Vitamin D

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Challenges in the chemotherapy of Chagas disease: Looking for possibilities related to the differences and similarities between the parasite and host

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World Journal of Biological Chemistry 2017年第1期8卷 57-80页

作者： Vitor Sueth-Santiago Debora Decote-ricardo Alexandre Morrot Celio Geraldo freire-de-Lima Marco Edilson freire Lima Instituto Federal de Educacao Ciência e Tecnologia do Rio de JaneiroCampus Sao Goncalo Universidade Federal Rural do Rio de Janeiro Instituto de Ciências ExatasDepartamento de Química Universidade Federal Rural do Rio de Janeiro Instituto de VeterináriaDepartamento de Microbiologia e Imunologia Veterinária Universidade Federal do Rio de Janeiro

Almost 110 years after the first studies by Dr. Carlos Chagas describing an infectious disease that was named for him, Chagas disease remains a neglected illness and a death sentence for infected people in poor countries. This short review highlights the enormous need for new studies aimed at the development of novel and more specific drugs to treat chagasic patients. The primary tool for facing this challenge is deep knowledge about the similarities and differences between the parasite and its human host.

关键词： Trypanosoma cruzi Trans-sialidase Trypanothione reductase CYP51 Cruzipain Tubulin

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Bubble Dynamics and Heat Transfer on Biphilic Surfaces:Experiments and Numerical Simulation

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Journal of Bionic Engineering 2020年第4期17卷 809-821页

作者： Pedro Pontes ricardo Cautela Emanuele Teodori Ana Sofia Moita Anastasios Georgoulas António Luís Nobre Moreira Moreira IN+-Center for Innovation Technology and Policy ResearchDepartment of Mechanical EngineeringInstituto Superior TécnicoUniversidade de LisboaAv.Rovisco Pais1049-001 LisboaPortugal ASML Holding N.V. De Run 65015504 DRVeldhovenThe Netherlands Department of Exact Sciences and Engineering Portuguese Military AcademyR.Gomes Freire2031169-203 LisboaPortugal Advanced Engineering Centre School of ComputingEngineering and MathematicsCockcroft BuildingLewes RoadUniversity of Brighton BN24GJUK

Wettability is known to play a major role in enhancing pool boiling heat *** this context bioinspired surfaces can bring significant advantages in pool boiling *** work addresses a numerical investigation of bubble growth and detachment on a biphilic surface pattern,namely in a superhydrophobic region surrounded by a hydrophilic *** characteristics resemble bioinspired solutions explored in our research group,mainly considering the main topographical *** numerical approach is intended to provide additional information to an experimental approach,allowing to obtain temperature,pressure and velocity fields in and around the bubble,which help to describe bubble *** model was validated based on experimental data obtained with extensive image processing of synchronized high-speed video and high-speed thermographic *** results obtained here clearly evidence that combining enhanced direct numerical simulations with high-resolution transient experimental measurements is a promising tool to describe the complex and intricate hydrodynamic and heat transfer phenomena governing pool boiling on heated biphilic surfaces.

关键词： bioinspired biphilic surfaces bubble dynamics two-phase heat transfer time resolved infrared thermography CFD model

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B-1 cells modulate the murine macrophage response to Leishmania major infection

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World Journal of Biological Chemistry 2017年第2期8卷 151-162页

作者： Angelica F Arcanjo Marise P Nunes Elias B Silva-Junior Monique Leandro Juliana Dutra Barbosa da Rocha Alexandre Morrot Debora Decote-ricardo Celio Geraldo freire-de-Lima Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro Instituto Oswaldo Cruz FIOCRUZ Instituto de Microbiologia Paulo de Góes Universidade Federal do Rio de Janeiro Instituto de Veterinária Universidade Federal Rural do Rio de Janeiro

AIM To investigate the modulatory effect of B-1 cells on murine peritoneal macrophages infected with Leishmania major(L. major) in *** Peritoneal macrophages obtained from BALB/c andBALB/c XID mice were infected with L. major and cultured in the presence or absence of B-1 cells obtained from wild-type BALB/c mice. Intracellular amastigotes were counted, and interleukin-10(IL-10) production was quantified in the cellular supernatants using an enzymelinked immunosorbent assay. The levels of the lipid mediator prostaglandin E2(PGE2) were determined using a PGE2 enzyme immunoassay kit(Cayman Chemical, Ann Arbor, MI), and the number of lipid bodies was quantified in the cytoplasm of infected macrophages in the presence and absence of B-1 cells. Culturing the cells with selective PGE2-neutralizing drugs inhibited PGE2 production and confirmed the role of this lipid mediator in IL-10 production. In contrast, we demonstrated that B-1 cells derived from IL-10 KO mice did not favor the intracellular growth of L. *** We report that B-1 cells promote the growth of L. major amastigotes inside peritoneal murine macrophages. We demonstrated that the modulatory effect was independent of physical contact between the cells, suggesting that soluble factor(s) were released into the cultures. We demonstrated in our co-culture system that B-1 cells trigger IL-10 production by L. major-infected macrophages. Furthermore, the increased secretion of IL-10 was attributed to the presence of the lipid mediator PGE2 in supernatants of L. major-infected macrophages. The presence of B-1 cells also favors the production of lipid bodies by infected macrophages. In contrast, we failed to obtain the same effect on parasite replication inside L. major-infected macrophages when the B-1 cells were isolated from IL-10 knockout mice. CONCLUSION Our results show that elevated levels of PGE2 and IL-10 produced by B-1 cells increase L. major growth, as indicated by the number of parasites

关键词： Leishmania major Macrophages B-1 cells Interleukin-10 Prostaglandin E2 Infection

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