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Bone marrow-derived monocyte infusion improves hepatic fibrosis by decreasing osteopontin,TGF-β1,IL-13 and oxidative stress

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World Journal of Gastroenterology 2017年第28期23卷 5146-5157页

作者： Veruska Cintia Alexandrino de Souza Thiago Almeida Pereira Valéria Wanderley Teixeira Helotonio Carvalho Maria Carolina Accioly Brelaz de Castro Carolline Guimaraes D’assuncao Andreia Ferreira de barros Camila Lima Carvalho Virgínia Maria.barros de Lorena Vláudia Maria Assis Costa Alvaro Aguiar Coelho Teixeira Regina Celia Bressan Queiroz Figueiredo Sheilla Andrade de Oliveira Centro de Pesquisas Aggeu Magalhaes Fundacao Oswaldo Cruz Immunopathogenesis Section Laboratory of Parasitic DiseasesNational Institute of Allergy and Infectious DiseaseNational Institutes of HealthBethesdaMDUSA and Laboratório de Doencas Parasitárias e infecciosasFaculdade de MedicinaUniversidade Federal de Minas Gerais Departamento de Morfologia e Fisiologia Animal Universidade Federal Rural de Pernambuco Departamento de Biofísica e Radiobiologia Universidade Federal de Pernambuco Centro Acadêmico de Vitória Universidade Federal de Pernambuco Departamento de Medicina Tropical Universidade Federal de Pernambuco

To evaluate the therapeutic effects of bone marrow-derived CD11b+CD14+ monocytes in a murine model of chronic liver *** liver damage was induced in C57BL/6 mice by administration of carbon tetrachloride and ethanol for 6 mo. Bone marrow-derived monocytes isolated by immunomagnetic separation were used for therapy. The cell transplantation effects were evaluated by morphometry, biochemical assessment, immunohistochemistry and enzyme-linked immunosorbent ***11b+CD14+ monocyte therapy significantly reduced liver fibrosis and increased hepatic glutathione levels. Levels of pro-inflammatory cytokines, including tumor necrosis factor-α, interleukin (IL)-6 and IL-1β, in addition to pro-fibrotic factors, such as IL-13, transforming growth factor-β1 and tissue inhibitor of metalloproteinase-1 also decreased, while IL-10 and matrix metalloproteinase-9 increased in the monocyte-treated group. CD11b+CD14+ monocyte transplantation caused significant changes in the hepatic expression of α-smooth muscle actin and *** therapy is capable of bringing about improvement of liver fibrosis by reducing oxidative stress and inflammation, as well as increasing anti-fibrogenic factors.

关键词： Monocytes Bone marrow mononuclear cells Cell therapy Macrophages Glutathione Liver fibrosis

Petit-Suisse Cheese Production with Addition of Probiotic <i>Lactobacillus</i><i>casei</i>

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Food and Nutrition Sciences 2014年第18期5卷 1756-1764页

作者： Ludmilla Santana Soares e barros Nelson De Carvalho Delfino Universidade Federal do Recô ncavo da Bahia Centro de Ciências Agrárias Ambientais e Biológicas Laboratório de Investiga&#231 o Analítica de Alimentos e de água Rua Rui Barbosa 710 Centro. Cruz das Almas Brazil

Growing concern to increase life expectancy has promoted several studies in the field of nutrition, especially those on food and their effects on the human body. Assays have been performed to improve their nutritional quality. In fact, there is considerable interest in encouraging development of new ingredients, with the innovation in food products and the establishment of new market niches for these ingredients. The global market for functional foods is growing and always envisages new products with functional technological and physiological characteristics. The petitsuisse cheese is a product of high nutritional value, rich in calcium, phosphorus and fat-soluble vitamins, with a high percentage of milk proteins, coupled to excellent digestion and assimilation by the human body. Current assay describes the production of a petit-suisse cheese to which was added the probiotic Lactobacillus casei BGP 93, and determines the physical, chemical and microbiological viability of lactobacilli in cheese during storage period. Levels of protein, fat in the dry extract, moisture and pH were analyzed for physical and chemical parameters;likewise, detection of coliforms, Staphylococcus, Salmonella, Listeria monocytogenes, and yeasts and molds was performed for microbiological parameters;monitoring of the viability of Lactobacillus casei BGP 93 during its life time was conducted. The petit-suisse cheese proved to be a good vehicle for the addition of probiotic microorganism. Lactobacillus casei remained viable during shelf life even with decreasing pH, and may be considered a functional product during 30 days of storage.

关键词： Cheese Probiotic Lactobacillus casei

Gut-microbiome-brain axis:the crosstalk between the vagus nerve,alpha-synuclein and the brain in Parkinson's disease

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Neural Regeneration Research 2023年第12期18卷 2611-2614页

作者： Júlio César Claudino dos Santos Leandro Freitas Oliveira Felipe Micelli Noleto Camilla Teixeira Pinheiro Gusmão Gerly Anne de Castro Brito Glauce Socorro de barros Viana Christus University Center-UNICHRISTUS FortalezaCEBrazil Postgraduate Program in Morphofunctional Sciences Federal University of Ceará-UFCFortalezaCEBrazil Universidade Católica de Brasília-UCB BrasíliaDFBrasil Postgraduate Program in Physiology and Pharmacology Department of the Federal University of Ceará-UFC FortalezaCEBrazil Physiology and Pharmacology Department of the Federal University of Ceará-UFC FortalezaCEBrazil

This critical review of the literature shows that there is a close link between the microbiome,the gut,and the brain in Parkinson's *** vagus nerve,the main component of the parasympathetic nervous system,is involved in the regulation of immune response,digestion,heart rate,and control of *** can detect microbiota metabolites through its afferents,transferring this gut information to the central nervous *** and clinical studies have shown the important role played by the gut microbiome and gut-related factors in disease development and progression,as well as treatment *** findings suggest that the gut microbiome may be a valuable target for new therapeutic strategies for Parkinson's *** studies are needed to better understand the underlying biology and how this axis can be modulated for the patient's benefit.

关键词： alpha-synuclein enteric microbiota gastrointestinal tract Parkinson's disease vagus nerve

Sediment transport under the presence and absence of emergent vegetation in a natural alluvial channel from Brazil

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International Journal of Sediment Research 2016年第4期31卷 360-367页

作者： Yuri Jacques Agra Bezerra da Silva José Ramon barros Cantalice Vijay P.Singh Cinthia Maria Cordeiro Atanázio Cruz Wagner Luís da Silva Souza Soil Conservation Engineering Laboratory Rural Federal University of Pernambuco(UFRPE) Brazil Department of Biological and Agricultural Engineering Texas A & M University College Station

Studies regarding the influence of emergent vegetation on sediment transport are scarce and have mainly focused on flume *** fill this gap and also meet the international need,we aimed to evaluate the influence of emergent vegetation(Echinodorus macrophyllus) on sediment transport of Capibaribe River,*** and suspended sediment measurements were carried out using the US BLH 84 and US DH 48 samplers,*** of stem diameter,stem spacing and plant density were performed in conjunction with flow and sediment field *** on our results,0.45 m swas the threshold of mean flow velocity supported by *** under field *** value can be helpful for other rivers with gravel-bed river to armoured layer ratio(AR=D)/D=12.50)-natural conditions observed in Capibaribe River-or where the vegetation can provide positive effects,such as increase the bed stability,assist water restoration/rehabilitation and decrease water *** results can hopefully be used in engineering practice and ecosystem *** general,both the drag coefficient and drag force varied inversely and directly with the mean flow velocity and vegetation density,*** vegetation resistance force was inversely proportional to the bedload transport owing to the resistance caused by emergent *** finding was supported by the clear decoupling between nonvegetated and emergent vegetated conditions indicated by cluster *** study results provided a reasonable understanding of the interaction between emergent vegetation,water flow and sediment transport in the Capibaribe River.

关键词： Vegetation drag force Vegetation drag coefficient Plant Reynolds number Hierarchical cluster analysis and principal component analysis

Perspectives on new biomarkers in gastric cancer: Diagnostic and prognostic applications

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World Journal of Gastroenterology 2014年第33期20卷 11574-11585页

作者： Danilo do Rosário Pinheiro Wallax Augusto Silva Ferreira Mariceli Baia Leo barros Mariana Diniz Araújo Symara Rodrigues-Antunes Bárbara do Nascimento Borges Master Program of Animal Health and Production Federal Rural University of Amazonia Belém PA 66077-530 Brazil Molecular Biology Laboratory Biological Science Institute Federal University of Pará Belém PA 66075-110 Brazil Center of Agropecuary Technology Socio-environmental and Hydric Resources Institute Federal Rural University of Amazonia Belém PA 66077-530 Brazil

Gastric cancer is considered one of the most deadly tumors worldwide. Even with the decline in its incidence, the mortality rate of this disease has remained high, mainly due to its late diagnosis and to the lack of precise prognostic markers. The main purpose of this review is to present genetic, epigenetic and proteomic molecular markers that may be used in a diagnostic and prognostic manner and to discuss the pros and cons of each type of marker for improving clinical practice. In this sense, we observed that the use of genetic markers, especially mutations and polymorphisms, should be carefully considered, as they are strongly affected by ethnicity. Proteomic-based markers show promise, but the higher costs of the associated techniques con-tinue to make this approach expensive for routine use. Alternatively, epigenetic markers appear to be very promising, as they can be detected in bodily fluids as well as tissues. However, such markers must be used carefully because epigenetic changes may occur due to environmental factors and aging. Despite the advances in technology and its access, to date, there are few defined biomarkers of prognostic and diagnostic use for gastric tumors. Therefore, the use of a panel of several approaches(genetic, epigenetic and proteomic) should be considered the best alternative for clinical practice.

关键词： Molecular markers Epigenetic Genetic Proteomic Diagnosis Prognosis Gastric tumors

Semi-Quantitative PCR for Quantification of Hepatotoxic Cyanobacteria

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Journal of Environmental Protection 2012年第5期3卷 426-430页

作者： Selma Gouvea.barros Maria do Carmo Bittencourt-Oliveira Institute of Biological Sciences Sao Paulo State UniversityRio ClaroBrazil Department of Biological Sciences Luiz de Queiroz College of AgricultureUniversity of Sao PauloPiracicabaBrazil Departamento de Gestao Ambiental Instituto Federal de EducacaoCiencia e Tecnologia do Sul de Minas Gerais—Campus InconfidentesInconfidentesBrazil

Blooms of microcystin-producing cyanobacteria are a problem worldwide. Microcystin is a liver hepatotoxin commonly found in bodies of water and is produced mainly by the genus Microcystis. The aim of the present study was to develop and assess a competitive PCR method for the quantification of toxic and non-toxic Microcystis cells using the cpcBA and mcyB genes, which are respectively involved in the formation of phycocyanin and biosynthesis of microcystin. For the acquisition of competitor DNA, amplification sequences were carried out of the “cell DNA equivalent” of microcystin-producing (BCCUSP18) and non-microcystin-producing (BCCUSP03) strains of Microcystis spp. using primers described in the literature as well as others designed for the present study. The method was successfully developed, as competitor DNA was constructed and co-amplified with the target DNA. Competitive PCR proved to be useful in quantifying toxic and non-toxic cells of Microcystis spp. strains, representing a helpful methodology tool to study isolated toxin-producing cyanobacteria.

关键词： Cyanobacteria Microcystis Competitive PCR mcyB cpcBA

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中国碳排放影响因素研究

中国碳排放影响因素研究

作者： DIAS DE barros JORGE ALBERTO 北京交通大学

学位级别：硕士

经济发展、人口结构变化和城市人口增长导致了能源消耗的大幅增加和各种交通方式的密集使用。这些因素对环境产生了不利影响,碳排放的比例也越来越大。2006年中国超越美国成为碳排放第一大国,2010年中国超过日本成为世界第二经济大国。... 详细信息

经济发展、人口结构变化和城市人口增长导致了能源消耗的大幅增加和各种交通方式的密集使用。这些因素对环境产生了不利影响,碳排放的比例也越来越大。2006年中国超越美国成为碳排放第一大国,2010年中国超过日本成为世界第二经济大国。尽管中国人均二氧化碳排放量比美国的低。2013-2017年统计数据也显示中国环境政策高效控制排放强度,但是国际初步核算显示自2018年中国碳排放量重新增长,因此“中国绿色发展”面临着巨大压力。本文综合STIRPAT模型理论基础、岭回归以及可行广义最小二乘方法的框架,研究影响对中国碳排放的因素。本文首先利用1978-2018年度时间序列数据,以中国为研究对象,基于扩展的STIRPAT模型,应用岭回归分析中国碳排放影响因素;其次选取1995-2018年中国30个省(除西藏外)的面板数据,运用修正的碳排放因子对中国各省市的八类能源消费碳排放进行测算。在此基础上,对比了全国与东、中、西部三个区域的碳排放发展趋势;运用面板数据回归模型与STIRPAT模型相结合的方法,从地区的角度对中国碳排放的影响因素进行了分析。在不同时间段,碳排放影响因素的实证分析结果表明,人口规模、城镇化率、人口年龄结构、城镇居民家庭人均可支配收入、铁路营业里程以及铁路客运量对碳排放都有显著的不同影响。近年来,尤其铁路发展与客运使用对中国碳排放的有显著抑制作用。在不同地区,碳排放的影响因素具有一定差异性。根据实证结果,本文提出了控制中国省市的碳排放的结论与建议。

关键词：碳排放 STIRPAT模型岭回归面板数据回归模影响因素

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

Oral Health and Masticatory Performance in Adults Submitted to Bariatric Surgery: A Pilot Study

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Open Journal of Stomatology 2015年第3期5卷 87-93页

作者： Paula Valeska Tavares Aline Coelho Micheline Coelho Ramalho Vasconcelos Criseuda Maria Benício barros Rosa Maria Mariz Melo Sales Marmhoud Coury Armiliana Soares Nascimento Maria da Conceicao de barros Correia Luciana de barros Correia Fontes Fundacao de Ensino Superior de Olinda(Funeso Unesf) OlindaBrazil Instituto de Medicina Integral Professor Fernando Figueira(Imip) RecifeBrazil Universidade Estadual da Paraiba(UEPB) Campina GrandeBrazil Universidade de Pernambuco(UPE) CamaragibeBrazil Universidade Federal de Pernambuco(UFPE) RecifeBrazil

Background: Obesity has reached epidemic patterns and constitutes a serious public health problem due to comorbidities and the impact on life quality of affected individuals. Bariatric surgery appears as one of the most recommended treatments;however much has been known about the effects of this intervention on the functional performance of the organism as a whole. Objective: To characterize the oral health of adults submitted to bariatric surgery, before and after the intervention, with emphasis on the performance of masticatory function. Methods: A prospective observational cohort study conducted in a public reference service to the treatment of obesity in the city of Recife, State of Pernambuco. The data were obtained during the first half of 2011, through interview, intraoral physical examination and evaluation of masticatory function. Statistical treatment adopted was a CI of 95% and the chi-square test. The collection was conducted in three stages, with initial assessment in the preoperative and follow-up at 60 and 180 days. Results: The sample consisted of 20 volunteers, aged between 23 and 58 years and mean BMI of 43.2 ± 2.8. When compared the pre-operative to the control periods, there were significant differences for variables with decreased tendency towards spontaneous gingival bleeding and increased tooth hypersensitivity and tooth mobility (p < 0.05). Regarding the masticatory function, we found significant differences for most of the variables investigated, except in the coordination of movements and breathing during this function. Conclusion: The performance of masticatory function shows differences in pre- and postoperative periods for bariatric surgery.

关键词： Obesity Bariatric Surgery Oral Health