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Biofilm analyses and exoproduct release by clinical and environmental isolates of Burkholderia pseudomallei from Brazil

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Asian Pacific Journal of Tropical Medicine 2023年第7期16卷 321-328页

作者： Glaucia Morgana de Melo Guedes Crister JoséOcadaque Alyne Soares Freitas rodrigo machado pinheiro Giovanna Barbosa Riello Silviane Praciano Bandeira Rossana de Aguiar Cordeiro Marcos Fábio Gadelha Rocha JoséJúlio Costa Sidrim Débora de Souza Collares Maia Castelo-Branco Department of Pathology and Legal Medicine Postgraduate Program in Medical MicrobiologyGroup of Applied Medical MicrobiologyFederal University of CearáFortalezaCEBrazil Department of Clinical and Toxicological Analysis School of PharmacyFederal University of CearáFortalezaCEBrazil Department of Pathology and Legal Medicine Postgraduate Program in Medical MicrobiologyLaboratory of Emerging and Reemerging PathogensFederal University of CearáFortalezaCEBrazil School of Veterinary Medicine Postgraduate Program in Veterinary SciencesState University of CearáFortalezaCEBrazil

Objective:To characterize biofilm production by clinical(n=21)and environmental(n=11)isolates of Burkholderia pseudomallei and evaluate the production of proteases,hemolysins and ***:Initially,the 32 strains were evaluated for biofilm production in Müller-Hinton broth-1%glucose(MH-1%glucose)and BHI broth-1%glucose,using the crystal violet staining ***,growing(48 h)and mature(72 h)biofilms were evaluated by confocal ***,the production of proteases,hemolysins and siderophores by planktonic aggregates,growing biofilms and mature biofilms was ***:All isolates produced biofilms,but clinical isolates had significantly higher biomass in both MH-1%glucose(P<0.001)and BHI-glucose 1%(P=0.005).The structural analyses by confocal microscopy showed thick biofilms,composed of multiple layers of cells,homogeneously arranged,with mature biofilms of clinical isolates presenting higher biomass(P=0.019)and thickness of the entire area(P=0.029),and lower roughness coefficient(P=0.007)than those of environmental *** production by growing biofilms was significantly greater than that of planktonic(P<0.001)and mature biofilms(P<0.001).Hemolysin release by planktonic aggregates was higher than that of biofilms(P<0.001).Regarding siderophores,mature biofilms presented higher production than growing biofilms(P<0.001)and planktonic aggregates(P<0.001).Conclusions:Clinical isolates have higher production of biofilms than their environmental counterparts;protease and siderophores seem important for growth and maintenance of Burkholderia pseudomallei biofilms.

关键词： Mangosteen Burkholderia pseudomallei Biofilms Proteases Hemolysins Siderophores

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Liver transplantation as an alternative for the treatment of perihilar cholangiocarcinoma: A critical review

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Hepatobiliary & Pancreatic Diseases International 2024年第2期23卷 139-145页

作者： Wellington Andraus Francisco Tustumi Alexandre Chagas Santana Rafael Soares Nunes pinheiro Daniel Reis Waisberg Liliana Ducatti Lopes Rubens Macedo Arantes Vinicius Rocha Santos rodrigo Bronze de Martino Luiz Augusto Carneiro D’Albuquerque Department of Gastroenterology Transplantation UnitUniversidade de São PauloSão PauloBrazil

Background:Perihilar cholangiocarcinoma(phCCC)is a dismal *** is no consensus regard-ing the best treatment for patients with unresectable *** present review aimed to gather the current pieces of evidence for liver transplantation and liver resection as a treatment for phCCC and to build better guidance for clinical *** sources:The search was conducted in PubMed,Embase,Cochrane,and *** related references were searched *** criteria were:reports in English or Portuguese literature that a)patients with confirmed diagnosis of phCCC;b)patients treated with a curative intent;c)patients with the outcomes of liver resection and liver *** reports,reviews,letters,editorials,conference abstracts and papers with full-text unavailability were excluded from the ***:Most of the current literature is based on observational retrospective studies with low grades of *** resection has better long-term outcomes than systemic chemotherapy or palliation ther-apy and liver transplantation is a good alternative for selected patients with unresectable *** candidates for resection or transplantation should be medically fit and free of intrahepatic or extrahep-atic *** a general rule,patients presenting with a tumor having a longitudinal size>3 cm or extending below the cystic duct,lymph node disease,confirmed extrahepatic dissemination;intraoper-atively diagnosed metastatic disease;a history of other malignancies within the last five years,and did not complete chemoradiation regimen and were medically unfit should not be considered for *** of these criteria should be individually *** transplantation or resection should only be considered in highly experienced hepatobiliary centers,and any decision-making must be based on a multidisciplinary ***:phCCC is a complex condition with high *** therapies,including hepatec-tomy and liv

关键词： Liver transplantation Cholangiocarcinoma Liver neoplasms

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An application programming interface with increased performance for optimisation problems data

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Journal of Management Analytics 2016年第4期3卷 305-332页

作者： rodrigo Lankaites pinheiro Dario Landa-Silva Rong Qu Ademir Aparecido Constantino Edson Yanaga ASAP Research Group School of Computer ScienceUniversity of NottinghamNottinghamUK Departamento de Informática Universidade Estadual de MaringáMaringáBrazil Unicesumar-Centro Universitário Cesumar MaringáBrazil

An optimisation problem can have many forms and *** may consider different objectives,constraints,and *** that reason,providing a general application programming interface(API)to handle the problem data efficiently in all scenarios is ***,on an R&D environment involving personnel from distinct backgrounds,having such an API can help with the development process because the team can focus on the research instead of implementations of data parsing,objective function calculation,and data ***,some researchers might have a stronger background in programming than others,hence having a standard efficient API to handle the problem data improves reliability and *** paper presents a design methodology to enable the development of efficient APIs to handle optimisation problems data based on a data-centric development *** proposed methodology involves the design of a data parser to handle the problem definition and data files and on a set of efficient data structures to hold the data in ***,we bring three design patterns aimed to improve the performance of the API and techniques to improve the memory access by the user ***,we present the concepts of a Solution Builder that can manage solutions objects in memory better than built-in garbage collectors and provide an integrated objective function so that researchers can easily compare solutions from different solving ***,we describe the positive results of employing a tailored API to a project involving the development of optimisation solutions for workforce scheduling and routing problems.

关键词： optimisation problems data API efficient data structures research and development projects

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World Journal of Clinical Cases 2021年第17期9卷 4123-4132页

作者： rodrigo Nascimento pinheiro Samantha Mucci Renato Morato Zanatto Olavo Magalhães Picanço Junior Alexandre Ferreira Oliveira Gaspar de Jesus Lopes Filho Surgical Oncology Service Surgical Oncology Residency and Academic League of OncologyFederal District Base HospitalBrasília 70330-150Distrito FederalBrazil Department of Psychiatry Federal University of São PauloPaulista School of Medicine(UNIFESP-EPM)São Paulo 04024-002São PauloBrazil Department of Surgical Oncology Amaral Carvalho Cancer HospitalJaú17210-070São PauloBrazil Department of Surgical Oncology Federal University of AmapáMacapá68900-073AmapáBrazil Department of Surgery Juiz de Fora Federal UniversityJuiz de Fora 36036-110Minas GeraisBrazil Postgraduate Program in Interdisciplinary Surgical Science Federal University of São PauloPaulista School of Medicine(UNIFESP-EPM)São Paulo 04024-002São PauloBrazil

In Brazil,gastric cancer is the third most common type of cancer among men and fifth among women,with an estimated 13360 new cases among men and 7870 among women each year during the 2020-2022 *** study presents reflections and attempts to add knowledge to the theme of quality of life(QoL)in patients with gastric adenocarcinoma and describes some of its characteristics in three regions of Brazil,with an evaluation of the disease’s impacts in various dimensions of life,as reported by the patients *** performed a narrative review of the literature and a data analysis of studies on QoL in Brazilian patients treated for gastric adenocarcinoma from three different cities in three geographic regions:Brasília(the midwest),Jaú(the southeast),and Macapá(the north).

关键词： Quality of life Gastric cancer Gastrectomy Stomach cancer Stomach neoplasms Gastric neoplasms

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Heart failure as an adverse effect of infliximab for Crohn's disease: A case report and review of the literature

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World Journal of Clinical Cases 2021年第33期9卷 10382-10391页

作者： Thais Gagno Grillo Luciana Rocha Almeida rodrigo Fedatto Beraldo Mariana Barros Marcondes Diego Aparecido Rios Queiróz Daniel Luiz da Silva rodrigo Quera Julio pinheiro Baima Rogerio Saad-Hossne Ligia Yukie Sassaki Department of Internal Medicine São Paulo State University(Unesp)Medical SchoolBotucatu 18618687São PauloBrazil Department of Pathology São Paulo State University(Unesp)Medical SchoolBotucatu 18618687São PauloBrazil Inflammatory Bowel Disease Program Digestive Disease Center Clínica Universidad de los AndesSantiago 7550000Chile

BACKGROUND Anti-tumor necrosis factor agents were the first biologic therapy approved for the management of Crohn's disease(CD).Heart failure(HF)is a rare but potential adverse effect of these *** objective of this report is to describe a patient with CD who developed HF after the use of *** SUMMARY A 50-year-old woman with a history of hypertension and diabetes presented with abdominal pain,diarrhea,and weight *** and enterotomography showed ulcerations,areas of stenosis and dilation in the terminal ileum,and thickening of the intestinal *** patient underwent ileocolectomy and the surgical specimen confirmed the diagnosis of stenosing *** patient started infliximab and azathioprine treatment to prevent post-surgical *** 6 mo after initiating infliximab therapy,the patient complained of dyspnea,orthopnea,and paroxysmal nocturnal dyspnea that gradually *** revealed biventricular dysfunction,moderate cardiac insufficiency,an ejection fraction of 36%,and moderate pericardial effusion,consistent with *** cardiac disease was considered an infliximab adverse effect and the drug was *** patient received treatment with diuretics for HF and showed improvement of symptoms and cardiac ***,the patient is using anti-interleukin for CD and is *** This reported case supports the need to investigate risk factors for HF in inflammatory bowel disease patients and to consider the risk-benefit of introducing infliximab therapy in such patients presenting with HF risk factors.

关键词： Heart failure Infliximab Anti-tumor necrosis factor therapy Crohn's disease Inflammatory bowel disease Case report

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MicroRNA expression in inflammatory bowel disease-associated colorectal cancer

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World Journal of Gastrointestinal Oncology 2021年第9期13卷 995-1016页

作者： Thais Gagno Grillo Ana Elisa Valencise Quaglio rodrigo Fedatto Beraldo Talles Bazeia Lima Julio pinheiro Baima Luiz Claudio Di Stasi Ligia Yukie Sassaki Department of Internal Medicine São Paulo State University(Unesp)Medical SchoolBotucatu 18618-686São PauloBrazil Department of Biophysics and Pharmacology São Paulo State University(Unesp)Institute of BiosciencesBotucatu 18618-689São PauloBrazil

MicroRNAs(miRNAs)are non-coding RNA molecules composed of 19–25 nucleotides that regulate gene expression and play a central role in the regulation of several immune-mediated disorders,including inflammatory bowel diseases(IBD).IBD,represented by ulcerative colitis and Crohn’s disease,is characterized by chronic intestinal inflammation associated with an increased risk of colorectal cancer(CRC).CRC is one of the most prevalent tumors in the world,and its main risk factors are obesity,physical inactivity,smoking,alcoholism,advanced age,and some eating habits,in addition to chronic intestinal inflammatory processes and the use of immunosuppressants administered to IBD *** studies have identified miRNAs associated with an increased risk of developing CRC in this *** identification of miRNAs involved in this tumorigenic process could be useful to stratify cancer risk development for patients with IBD and to monitor and assess ***,the present review aimed to summarize the role of miRNAs as biomarkers for the diagnosis and prognosis of IBD-associated *** the future,therapies based on miRNA modulation could be used both in clinical practice to achieve remission of the disease and restore the quality of life for patients with IBD,and to identify the patients with IBD at high risk for tumor development.

关键词： MicroRNA Colorectal cancer Inflammatory bowel disease Crohn's disease Ulcerative colitis Cancer Diagnosis Prognosis Targets

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Treatment of acute severe ulcerative colitis using accelerated infliximab regimen based on infliximab trough level:A case report

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World Journal of Clinical Cases 2021年第13期9卷 3219-3226页

作者： Ana Lorena Sousa de Vasconcelos Garate Thiara Barcelos Rocha Luciana Rocha Almeida rodrigo Quera Jaqueline Ribeiro Barros Julio pinheiro Baima Rogerio Saad-Hossne Ligia Yukie Sassaki Department of Internal Medicine São Paulo State University(Unesp)Medical SchoolBotucatu 18618687São PauloBrazil Inflammatory Bowel Disease Program GastroenterologyMedicine DepartmentClínica Universidad de los AndesSantiago 7550000Chile

BACKGROUND Acute severe ulcerative colitis (ASUC) is a complication of ulcerative colitisassociated with high levels of circulating tumor necrosis factor alpha, due to theintense inflammation and faster stool clearance of anti-tumor necrosis factordrugs. Dose-intensified infliximab treatment can be beneficial and is associatedwith lower rates of colectomy. The aim of the study was to present a case of apatient with ASUC and megacolon, treated with hydrocortisone and acceleratedscheme of infliximab that was monitored by drug trough *** SUMMARYA 22-year-old female patient diagnosed with ulcerative colitis, presented withdiarrhea, rectal bleeding, abdominal pain, vomiting, and distended *** investigation, a positive toxin for Clostridium difficile and colonic dilatationof 7 cm consistent with megacolon were observed. She was treated with oralvancomycin for pseudomembranous colitis and intravenous hydrocortisone forsevere colitis, which led to the resolution of megacolon. Due to the persistentsevere colitis symptoms, infliximab 5 mg/kg was prescribed, monitored by drugtrough level (8.8 μg/mL) and fecal calprotectin of 921 μg/g (< 30 μg/g). Based onthe low infliximab trough level after one week from the first infliximab dose, thepatient received a second infusion at week 1, consistent with the acceleratedregimen (infusions at weeks 0, 1, 2 and 6). We achieved a positive clinical andendoscopic response after 6 mo of therapy, without the need for a *** accelerated infusions can be beneficial in ASUC unresponsive to thetreatment with intravenous corticosteroids. Longitudinal studies are necessary todefine the best therapeutic drug monitoring and treatment regimen for thesepatients.

关键词： Infliximab Acute severe ulcerative colitis Toxic megacolon Ulcerative colitis Inflammatory bowel disease Case report

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Comparative Study of Collagen Stimulation Using Semi-Ablative and Non-Ablative Radiofrequency

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Journal of Biosciences and Medicines 2022年第6期10卷 79-89页

作者： Patrícia Froes Meyer rodrigo Marcel Valentim da Silva Eneida De Morais Carreiro Rafaella Rêgo Maia Stephany Luanna Queiroga Farias Ciro Dantas Soares Yuri Alexander Afonso Gustavo Felipe Pasqual Silene Bazi Ribeiro Roberto Tiago Alves pinheiro University Centre of Rio Grande do Norte (UNIRN) Natal Brazil Estácio de Sá University Natal Brazil Federal University of Rio Grande do Norte Natal Brazil Potiguar University (UNP) Natal Brazil Campinas State University (UNICAMP) Campinas Brazil Brazilian Society of Plastic Surgery Brazil FSG University Centre of Serra Gaúcha Caxias do Sul Brazil MARC Institute Miami USA

Objective: Comparison between semi-ablative and non-ablative radiofrequency for collagen stimulation. Method: Three volunteers with scheduled surgical procedures of abdominoplasty were selected. After the evaluation, the abdominal area was divided into three quadrants, with the right region receiving monopolar non-ablative radiofrequency (RF) application. In contrast, the left region received fractionated radiofrequency (FRF) application, using three different needle sizes (0.5, 1.5, and 3.0 mm), and the intermediate area was kept as a control. After 24 hours, surgery was performed, and the skin flaps were collected for histological and immunohistochemical analyses. Results: An increase in total collagen and type I collagen was observed in the treated groups. There was also an increase in the expression of COX-2, CD68 positive cells (macrophages), and lymphocyte markers (CD3, CD20, and NK-CD57). Furthermore, it was seen that only the use of 3.0-mm needles kept the channels open in the superficial tissue after 24 hours. There were no significant differences between the modalities. Conclusion: Non-ablative and sub-ablative radiofrequency have positive and effective results for flaccidity, demonstrating the success in collagen production. Furthermore, this study is the first to present channel opening and permanence time, which are important to optimize the action of drug delivery.

关键词： Collagen Flaccidity Radiofrequency Drug Delivery

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Living-donor liver transplantation in Budd-Chiari syndrome with inferior vena cava complete thrombosis:A case report and review of the literature

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World Journal of Hepatology 2021年第1期13卷 151-161页

作者： Vinicius Rocha-Santos Daniel Reis Waisberg Rafael Soares pinheiro Lucas Souto Nacif Rubens Macedo Arantes Liliana Ducatti rodrigo Bronze Martino Luciana Bertocco Haddad Flavio Henrique Galvao Wellington Andraus Luiz Augusto Carneiro-D'Alburquerque Department of Gastroenterology Abdominal Organs Transplantation DivisionHospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo(HC-FMUSP)Sao Paulo 05403900SPBrazil Department of Gastroenterology Laboratory of Medical Investigation 37(LIM-37)Faculdade de Medicina da Universidade de Sao Paulo(FMUSP)Sao Paulo 01246903Brazil

BACKGROUND Budd-Chiari syndrome(BCS)is a challenging indication for liver transplantation(LT)due to a combination of massive liver,increased bleeding,retroperitoneal fibrosis and frequently presents with stenosis of the inferior vena cava(IVC).Occasionally,it may be totally thrombosed,increasing the complexity of the procedure,as it should also be *** challenge is even greater when performing living-donor LT as the graft does not contain the retrohepatic IVC;thus,it may be necessary to reconstruct *** SUMMARY A 35-year-old male patient with liver cirrhosis due to BCS and hepatocellular carcinoma beyond the Milan criteria underwent living-donor LT with IVC *** was necessary to remove the IVC as its retrohepatic portion was completely thrombosed,up to almost the right atrium.A right-lobe graft was retrieved from his sister,with outflow reconstruction including the right hepatic vein and the branches of segment V and VIII to the middle hepatic *** to massive subcutaneous collaterals in the abdominal wall,venovenous bypass was implemented before incising the *** right atrium was reached via a transdiaphragramatic *** was performed en bloc with the retrohepatic vena *** was reconstructed with an infra-hepatic vena cava graft obtained from a deceased *** patient remains well on outpatient clinic follow-up 25 mo after the procedure,under an anticoagulation protocol with *** Living-donor LT in BCS with IVC thrombosis is feasible using a meticulous surgical technique and tailored strategies.

关键词： Liver transplantation Living donors Budd-Chiari syndrome Hepatic venoocclusive disease Inferior vena cava Case report

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The Impact of a Real-Life Inflammatory Bowel Disease Education Course for Brazilian Physicians from the Perspective of Its Participants

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Open Journal of Gastroenterology 2021年第9期11卷 151-160页

作者： rodrigo Fedatto Beraldo Julio pinheiro Baima Jaqueline Ribeiro de Barros Fernanda Lofiego Renosto Rogerio Saad-Hossne Ligia Yukie Sassaki Department of Internal Medicine Medical School S&#227o Paulo State University (Unesp) Botucatu Brazil Department of Surgery Medical School S&#227o Paulo State University (Unesp) Botucatu Brazil

Background: Physicians must acquire the necessary skills to provide Inflammatory Bowel Disease (IBD) patients with state-of-the-art clinical care, aiming to improve patient’s quality of life and disease outcomes. Purpose: To describe the queries and experiences of doctors enrolled in an IBD education course and to evaluate the impact of the course. Methods: A retrospective study included 100 physicians, of which 78 attended the course. A questionnaire was applied evaluating how the course had an impact on their IBD-knowledge. The 20-hour-course consisted of practical “real-life” activities and theoretical discussions. Results: The majority of doctors’ expertise was in gastroenterology (53%) and coloproctology (44%). A significant portion had no experience with biological therapy for ulcerative colitis (19.4%) or Crohn’s disease (5.05%). The main topics doctors wanted to discuss were biological therapy (93%), new drugs (74%) and differential diagnosis (64%). A considerable number of physicians did not feel confident at prescribing biological therapy before the course (44.4%), a percentage that decreased to 8.5% after the course (p Discussion: The ideal course should have a practical and theoretical component, as well as the support of an experienced multidisciplinary team. A real-life practical-theoretical IBD course proved a success at increasing IBD knowledge.

关键词： Continuing Medical Education Crohn’s Disease Ulcerative Colitis Inflammatory Bowel Disease

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