161 research outputs found

    INTERNET DAS COISAS E SEUS IMPACTOS POSITIVOS NO AMBIENTE EDUCACIONAL

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    A tecnologia está cada vez mais presente dentro das empresas como um ativo facilitador na busca e no compartilhamento de informações, por isso é necessário saber protegê-las, pois elas têm um grande valor no âmbito profissional. A partir dessa visão, desenvolveu-se esse trabalho com o objetivo de criar uma Política de Segurança da Informação para a instituição de ensino superior.  A necessidade da criação da política se deu a partir do resultado de uma pesquisa quantitativa em que foi possível identificar o baixo nível de maturidade por parte dos funcionários da instituição, no que diz respeito a segurança da informação. A política tem como objetivo proteger os ativos de tecnologia da instituição, determinando normas a serem seguidas para reduzir os incidentes resultantes da falta de proteção. DOI: https://doi.org/10.6084/m9.figshare.682880

    Cell therapy in pulmonary diseases: are there perspectives?

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    A terapia celular poderia ser conceituada de forma ampla e genérica como o emprego de células para tratamento de doenças. Apesar de um número não tão expressivo de relatos tendo o pulmão como objeto de estudo na terapia celular em pacientes humanos, há dados consistentes da literatura, tanto em humanos, quanto em modelos animais,que evidenciam a migração de células-tronco da medula óssea para o pulmão,em diferentes situações experimentais. Esses resultados forneceram o embasamento experimental para o emprego de células-tronco na regeneração do tecido pulmonar em modelos animais. Em nosso laboratório, vários projetos de pesquisa têm sido conduzidos com a finalidade de avaliar a resposta pulmonar (morfológica e funcional) ao tratamento com células-tronco adultas em camundongos com doença pulmonar obstrutiva crônica (DPOC) induzida experimentalmente. Os resultados obtidos, aliados àqueles de outros grupos de pesquisa, permitem aventar a possibilidade de aplicação, a curto prazo, da terapia celular em pacientes com DPOC. Em outra patologia pulmonar, fibrose cística (FC), cuja abordagem terapêutica com células-tronco apresenta aspectos particulares em relação às patologias pulmonares crônico-degenerativas, há avanços promissores e potencialmente interessantes; no entanto, os resultados podem ser considerados incipientes e deve-se assinalar, portanto, que a associação da terapia gênica e celular apresenta-se como uma alternativa possível, mas ainda muito distante quanto à sua consolidação e incorporação como opção terapêutica segura e eficaz em FC. Por outro lado, tendo por embasamento os resultados obtidos em modelos experimentais, é possível postular que a terapia celular com células-tronco hematopoéticas (ou de outras fontes) encerra perspectivas consistentes de aplicação em diversas outras patologias pulmonares humanas, especialmente em DPOC.Cell therapy can be briefly described as the use of cells in the treatment of diseases. Although the number of scientific reports involving lung and cell therapy in humans is not expressive, there are consistent data, both in humans and animal models. Experiments show the migration of bone marrow stem cells to the lung, in different situations. These results provide the experimental basis for the use of stem cells in the regeneration of the lung tissue in animal models. In our laboratory, several projects have been conducted aiming to evaluate the pulmonary response (morphological and functional) to treatment with adult stem cells in mice with experimentally induced chronic obstructive pulmonary disease. The results obtained, together with those from other research groups, allow us to consider the possibility of application, in the near future, of cell therapy in chronic obstructive pulmonary disease patients. For another disease, cystic fibrosis, cell therapy shows particular aspects in relation to other chronic degenerative pulmonary diseases. In this pathology, there are interesting and promising advances, however, the results are incipient and, thus, it must be said that the association between genetic and cell therapy appears to be a possibility, but still far from being consolidated and incorporated as a safe and effective therapeutic alternative in cystic fibrosis. On the other hand, based on the results obtained in experimental models, it is possible to postulate that cell therapy with hematopoietic stem cells (or from other sources) brings consistent application perspectives in several other human pulmonary diseases, especially in chronic obstructive pulmonary disease.CNPqFundunesp Fundação BiomaVal

    Unicentric study of cell therapy in chronic obstructive pulmonary disease/pulmonary emphysema

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    Within the chronic obstructive pulmonary disease (COPD) spectrum, lung emphysema presents, as a primarily histopathologic feature, the destruction of pulmonary parenchyma and, accordingly, an increase in the airflow obstruction distal to the terminal bronchiole. Notwithstanding the significant advances in prevention and treatment of symptoms, no effective or curative therapy has been accomplished. In this context, cellular therapy with stem cells (SCs) arises as a new therapeutic approach, with a wide application potential. The purpose of this study is to evaluate the safety of SCs infusion procedure in patients with advanced COPD (stage IV dyspnea). After selection, patients underwent clinical examination and received granulocyte colony-stimulating factor, immediately prior to the bone marrow harvest. The bone marrow mononuclear cells (BMMC) were isolated and infused into a peripheral vein. The 12-month follow-up showed a significant improvement in the quality of life, as well as a clinical stable condition, which suggest a change in the natural process of the disease. Therefore, the proposed methodology in this study for BMMC cell therapy in sufferers of advanced COPD was demonstrated to be free of significant adverse effects. Although a larger sample and a greater follow-up period are needed, it is possible to infer that BMMC cell therapy introduces an unprecedented change in the course or in the natural history of emphysema, inhibiting or slowing the progression of disease. This clinical trial was registered with ClinicalTrials.gov (NCT01110252) and was approved by the Brazilian National Committee of Ethics in Research (registration no. 14764, CONEP report 233/2009)

    Corpus Callosum Microstructural Changes Correlate with Cognitive Dysfunction in Early Stages of Relapsing-Remitting Multiple Sclerosis: Axial and Radial Diffusivities Approach

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    The corpus callosum is the largest fiber bundle in the central nervous system and it takes part in several cognitive pathways. It can be affected by multiple sclerosis (MS) early in the disease. DTI is capable of infering the microstructural organization of the white matter. The vectorial analysis of the DTI offers the more specific indices of axial diffusivity (AD) and radial diffusivity (RD), which have shown to be useful to discriminate myelin damage from axon loss, respectively. This study presents DTI results (mean diffusivity (MD), fractional anisotropy (FA), RD, and AD) of 23 relapsing-remitting MS patients and its correlation with cognitive performance. There were 47.8% of cognitive impaired patients (MS CI). We found signs of demyelination, reflected by increased RD, and incipient axon loss, reflected by AD increase, which was slightly higher in the MS CI. The cognitive changes correlated with the DTI parameters, suggesting that loss of complexity in CC connections can impair neural conduction. Thus, cognitive impairment can be related to callosal disconnection, and DTI can be a promising tool to evaluate those changes

    A assistência psíquica no Sistema Único de Saúde: um relato de experiência

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    The aim was to describe an experience report about the assistance offered by the Unified Health System to psychiatric patients and how this support network can be fundamental in their lives. This is a qualitative, descriptive research, which will report the experience lived in Primary Care correlated with the theoretical aspects of the course, in the context of Mental Health. Some evidenced literatures were selected. Thus, they were used to search for articles on the Google Scholar and Scientific Electronic Library Online search platforms. For the discussion, the two categories were listed: Primary Care in mental health care and multi- and interdisciplinarity in psychiatric and mental health care, which were later analyzed and claimed. It is concluded that the psychic assistance provided to patients with mental problems is essential for them to achieve: autonomy, freedom, exercise their citizenship, equity and access to quality health services.O objetivo principal foi descrever um relato de experiência acerca da assistência ofertada pelo Sistema Único de Saúde aos pacientes psiquiátricos e como essa rede de apoio pode ser fundamental em suas vidas. Trata-se de uma pesquisa qualitativa, do tipo descritiva, que relatará a experiência vivenciada na Atenção Primária correlacionadas com as vertentes teóricas do curso, no âmbito da Saúde Mental. Foram selecionadas algumas literaturas evidenciadas. Desse modo, foram utilizadas para busca de artigos nas plataformas de pesquisa Google Acadêmico e Scientific Electronic Library Online. Para a discussão, foram elencadas as duas categorias: A Atenção Primária na assistência à saúde mental e a multi e interdisciplinaridade no cuidado psiquiátrico e de saúde mental, sendo que, posteriormente, os mesmos foram analisados e pleiteados. Conclui-se que a assistência psíquica prestada aos pacientes com problemas mentais é fundamental para que eles consigam: autonomia, liberdade, exercer sua cidadania, equidade e acesso à serviços de saúde de qualidade

    The effect of lesion filling on brain network analysis in multiple sclerosis using structural magnetic resonance imaging

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    BACKGROUND: Graph theoretical network analysis with structural magnetic resonance imaging (MRI) of multiple sclerosis (MS) patients can be used to assess subtle changes in brain networks. However, the presence of multiple focal brain lesions might impair the accuracy of automatic tissue segmentation methods, and hamper the performance of graph theoretical network analysis. Applying "lesion filling" by substituting the voxel intensities of a lesion with the voxel intensities of nearby voxels, thus creating an image devoid of lesions, might improve segmentation and graph theoretical network analysis. This study aims to determine if brain networks are different between MS subtypes and healthy controls (HC) and if the assessment of these differences is affected by lesion filling. METHODS: The study included 49 MS patients and 19 HC that underwent a T1w, and T2w-FLAIR MRI scan. Graph theoretical network analysis was performed from grey matter fractions extracted from the original T1w-images and T1w-images after lesion filling. RESULTS: Artefacts in lesion-filled T1w images correlated positively with total lesion volume (r = 0.84, p < 0.001) and had a major impact on grey matter segmentation accuracy. Differences in sensitivity for network alterations were observed between original T1w data and after application of lesion filling: graph theoretical network analysis obtained from lesion-filled T1w images produced more differences in network organization in MS patients. CONCLUSION: Lesion filling might reduce variability across subjects resulting in an increased detection rate of network alterations in MS, but also induces significant artefacts, and therefore should be applied cautiously especially in individuals with higher lesions loads

    Does Propolis Contain Tannins?

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    Although polyphenols have been reported as common constituents of propolis, tannins have \ud rarely been mentioned as its constituents. Propolis samples from seven localities in Brazil \ud were analyzed for detection of proanthocyanidins (condensed tannins) and determination of \ud the tannin content. Positive reaction for proanthocyanidins was observed for all samples \ud tested. The contents of tannins varied in the range 0.6% - 4.1%. A high degree of correlation \ud was noted between total phenols and tannin content. Red and green propolis contained high \ud contents of tannins, while in brown propolis the content was lower. It is suggested that the \ud contents of tannins should be a parameter to be considered in propolis characterization

    A multidisciplinary treatment of congenitally missing maxillary lateral incisors: a 14-year follow-up case report

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    Absence of the maxillary lateral incisor creates an aesthetic problem which can be managed in various ways. The condition requires careful treatment planning and consideration of the options and outcomes following either space closure or prosthetic replacement. Recent developments in restorative dentistry have warranted a re-evaluation of the approach to this clinical situation. Factors relating both to the patient and the teeth, including the presentation of malocclusion and the effect on the occlusion must be considered. The objective of this study was to describe the etiology, prevalence and alternative treatment modalities for dental agenesis and to present a clinical case of agenesis of the maxillary lateral incisors treated by the closure of excessive spaces and canine re-anatomization. A clinical case is presented to illustrate the interdisciplinary approach between orthodontics and restorative dentistry for improved esthetic results. In this report, the treatment of a girl with a Class II malocclusion of molars and canines with missing maxillary lateral incisors and convex facial profile is shown. Treatment was successfully achieved and included the space closure of the areas corresponding to the missing upper lateral incisors, through movement of the canines and the posterior teeth to mesial by fixed appliances as well as the canines transformation in the maxillary lateral incisors. This is a 14-year follow-up case report involving orthodontics and restorative dentistry in which pretreatment, posttreatment, and long-term follow-up records for the patient are presented

    Seroepidemiological analysis of toxoplasmosis in college students

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    Background Toxoplasmosis is a zoonosis caused by an obligate intracellular parasite, Toxoplasma gondii, which affects warm-blooded animals including humans. Its prevalence rates usually vary in different regions of the planet.\ud \ud \ud Methods\ud In this study, an analysis of the seroprevalence of toxoplasmosis among Brazilian students was proposed by means of IgG specific antibodies detection. The presence of anti-Toxoplasma gondii antibodies by indirect fluorescent antibody test (IFAT) was also evaluated in order to compare it with enzyme-linked immunosorbent assay (ELISA) and to assess the use of 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) and o-phenylenediamine dihydrochloride chromogens.\ud \ud \ud Results\ud The IFAT method showed a seroprevalence of 22.3%. These results were similar to those obtained by ELISA (24.1%). The seroprevalence was directly estimated from the IgG avidity, which showed that in a sample of 112 students, three of them had acute infection, an incidence of 1.6% in the studied population.\ud \ud \ud Conclusion\ud In this study, the use of different chromogenic substrates in immunoenzymatic ELISA assays did not display different sensitivity in the detection of T. gondii-reagent serum. The extrapolation of results to this population must be carefully considered, since the investigation was conducted on a reduced sample. However, it allows us to emphasize the importance of careful and well prepared studies to identify risk factors for toxoplasmosis, to adopt preventive measures and to offer guidance to at-risk populations about the disease.Fundação para o Desenvolvimento da Unesp (Fundunesp)Municipal Government of Assis (SP, Brazil)CIVAP/SaúdeCoordenação para Aperfeiçoamento de Pessoal de Nivel Superior(CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq
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