Macrolides in cystic fibrosis. Is there a role?

A spectrum of anti-inflammatory properties, evidence of anti-infective action against Pseudomonas aeruginosa at sub-inhibitory concentrations and positive clinical experience in patients with diffuse panbronchiolitis, a disease with features in common with cystic fibrosis (CF), has prompted research to evaluate the role of macrolide therapy in patients with CF. Newer macrolides such as azithromycin have the advantage of improved tolerability and a prolonged intracellular half-life requiring an infrequent dosing regimen. Results from initial studies suggest a benefit from several months of macrolide therapy in patients with CF. An improvement in lung function was initially shown in a small open study in children, while maintenance of lung function compared with placebo, reduced acute respiratory exacerbations, and reduced systemic markers of inflammation were demonstrated in a randomized, placebo-controlled study of macrolide therapy in adult patients with CF. Additional controlled studies are required to determine optimal drug, dosage, and duration of therapy, and long-term adverse effects of prolonged therapy with macrolides in patients with CF. The potential, with long-term use, to induce resistance against other bacteria colonizing the upper respiratory tract e.g. pneumococci has not been explored. Measurement of cytokines and inflammatory mediators from the sputum of patients with CF is technically difficult and does not correlate with disease activity. There is a need for easily measurable, reproducible and clinically meaningful end-points for evaluation of new therapies in CF. The choice of appropriate outcome measures, apart from lung function, to monitor disease activity needs careful consideration in clinical trials determining the efficacy of macrolides in patients with CF. Evidence-based recommendations for the use of macrolides in the treatment of CF are not expected for some years although macrolides are already being prescribed for long-term use in some centers. There is a need for further research into mechanisms of anti-inflammatory action of macrolides in the lungs of patients with CF and whether or not such therapy may be beneficial in the long term. Copyright 2002 Adis International

Genetic variability in cultivated common bean beyond the two major gene pools

It is generally accepted that two major gene pools exist in cultivated common bean (Phaseolus vulgaris L.), a Middle American and an Andean one. Some evidence, based on unique phaseolin morphotypes and AFLP analysis, suggests that at least one more gene pool exists in cultivated common bean. To investigate this hypothesis, 1072 accessions from a common bean core collection from the primary centres of origin, held at CIAT, were investigated. Various agronomic and morphological attributes (14 categorical and 11 quantitative) were measured. Multivariate analyses, consisting of homogeneity analysis and clustering for categorical data, clustering and ordination techniques for quantitative data and nonlinear principal component analysis for mixed data, were undertaken. The results of most analyses supported the existence of the two major gene pools. However, the analysis of categorical data of protein types showed an additional minor gene pool. The minor gene pool is designated North Andean and includes phaseolin types CH, S and T; lectin types 312, Pr, B and K; and mostly A5, A6 and A4 types alpha-amylase inhibitor. Analysis of the combined categorical data of protein types and some plant categorical data also suggested that some other germplasm with C type phaseolin are distinguished from the major gene pools.

Research utilization among pediatric health professionals

The present study investigated research use and attitudes toward research among pediatric health professionals. All nurses and allied health professionals in a pediatric teaching hospital were surveyed using previously tested and published measures. Over half of the participants had some formal education in research but, for some participants, that education was many years ago. Most participants reported poor or very poor understanding of research design. Two variables were independently associated with a positive attitude towards research: (i) better understanding of how to conduct a literature search; and (ii) higher level of education. Five variables were independently associated with research use: better understanding of research design; having presented at a conference in the past two years; sense of calling to the profession; better understanding of how to conduct a literature search; and attending rounds. A small proportion of variance in both research use and a positive attitude towards research was explained by the independent predicator variables. Further research is required to identify characteristics of the workplace environment that support research use.

Telehealth responses to bio-terrorism and emerging infections

Emerging infectious diseases, such as severe acute respiratory syndrome (SARS), are of huge economic importance. They are difficult to predict. The World Health Organization has a Global Outbreak Alert and Response Network, which was involved at an early stage in the SARS outbreak in 2003. Three major lessons were learned as a result of the SARS epidemic in 2003, involving communication, evidence-based action and global partnerships. It is proposed that a series of broadband global response networks should be developed. At a technical level the networks are essentially in place, such as the Internet2 global network. Suitable peripheral devices also exist. What has not yet been created is the appropriate software to allow the use of these networks, although a number of commercial products are in the process of development.

Unraveling the barriers to reconceptualization of the problem in chronic pain: The actual and perceived ability of patients and health professionals to understand the neurophysiology

To identify why reconceptualization of the problem is difficult in chronic pain, this study aimed to evaluate whether (1) health professionals and patients can understand currently accurate information about the neurophysiology of pain and (2) health professionals accurately estimate the ability of patients to understand the neurophysiology of pain. Knowledge tests were completed by 276 patients with chronic pain and 288 professionals either before (untrained) or after (trained) education about the neurophysiology of pain. Professionals estimated typical patient performance on the test. Untrained participants performed poorly (mean +/- standard deviation, 55% +/- 19% and 29% +/- 12% for professionals and patients, respectively), compared to their trained counterparts (78% +/- 21% and 61% +/- 19%, respectively). The estimated patient score (46% +/- 18%) was less than the actual patient score (P < .005). The results suggest that professionals and patients can understand the neurophysiology of pain but professionals underestimate patients' ability to understand. The implications are that (1) a poor knowledge of currently accurate information about pain and (2) the underestimation of patients' ability to understand currently accurate information about pain represent barriers to reconceptualization of the problem in chronic pain within the clinical and lay arenas. (C) 2003 by the American Pain Society.

Gest??o por compet??ncias: m??todos e t??cnicas para mapeamento de compet??ncias

A gest??o por compet??ncias tem sido apontada como alternativa aos modelos gerenciais tradicionalmente utilizados pelas organiza????es. Prop??e-se a orientar esfor??os para planejar, captar, desenvolver e avaliar, nos diferentes n??veis da organiza????o, as compet??ncias necess??rias ?? consecu????o de seus objetivos. Uma das principais etapas desse processo constitui o denominado mapeamento de compet??ncias. Este artigo objetiva apresentar m??todos, t??cnicas e instrumentos utilizados para mapeamento de compet??ncias em organiza????es p??blicas e privadas. Para isso, fazem-se uma revis??o da literatura sobre o conceito de compet??ncia, o mapeamento de compet??ncias e a gest??o por compet??ncias, discutindo-se seus pressupostos e suas aplica????es. Ao final, s??o levantadas as implica????es desse modelo de gest??o para o setor p??blico e s??o apresentadas recomenda????es pr??ticas.

A no????o de compet??ncia na gest??o de pessoas: reflex??es acerca do setor p??blico

O presente ensaio traz ?? discuss??o a gest??o por compet??ncias como atributo elementar para o desempenho organizacional, considerando o impacto que altera????es sociais e econ??micas t??m no trabalho. O objetivo deste ?? contribuir para reflex??es por parte de gestores, colaboradores e pesquisadores sobre a gest??o por compet??ncias enquanto parte de uma gest??o estrat??gica de pessoas, com uma vis??o mais abrangente. Para tanto, fez-se uma revis??o bibliogr??fica que evidenciou a import??ncia da gest??o por compet??ncias no desempenho organizacional e na gest??o estrat??gica de pessoas. O estudo aponta que o caminho ainda ?? vasto e impreciso nas empresas p??blicas pela complexidade cultural e pol??tica envolvida. O sucesso no desenvolvimento da gest??o por compet??ncias (individual e organizacional) est?? em reconhecer que, por ser uma abordagem com foco nas pessoas, se trata de um processo evolucion??rio com eventos planejados e espont??neos que visam transformar comportamentos e atitudes, o que leva tempo e exige paci??ncia ao longo das a????es organizacionais do dia a dia.

Nova gest??o p??blica e motiva????o no servi??o p??blico: a carreira de EPPGG como alternativa para as disfun????es burocr??ticas

Este artigo visa compreender at?? que ponto as pr??ticas gerenciais incorporam as dimens??es da satisfa????o e motiva????o no trabalho de servidores p??blicos na atualidade. Aborda os modelos de administra????o burocr??tica e gerencial, exp??e as disfun????es do modelo ideal da burocracia weberiana, apresenta a motiva????o para o trabalho e suas implica????es, e evidencia a carreira de Especialista em Pol??ticas P??blicas e Gest??o Governamental (EPPGG) no intuito de apresentar uma alternativa poss??vel de proporcionar satisfa????o e motiva????o no trabalho, por meio do enriquecimento do cargo. A metodologia consta de uma pesquisa qualitativa, na qual se fez uso de entrevistas semiestruturadas aplicadas junto a tr??s EPPGG. Utilizou-se da an??lise de conte??do com uso da t??cnica de categoriza????o para a an??lise os dados. Os resultados demonstraram a satisfa????o e motiva????o dos gestores, a preval??ncia da administra????o burocr??tica com fortes ind??cios da administra????o gerencial e aus??ncia de disfun????es burocr??ticas. Evidenciaram que o modelo da nova gest??o p??blica, uma vez implantado conforme descrito na teoria, pode combater disfun????es burocr??ticas e contribuir para a satisfa????o e motiva????o dos servidores p??blicos. Destaca-se a relev??ncia de estudos posteriores, visto que foram apontadas diversidades de condi????es de trabalho de ??rg??o para ??rg??o e dificuldades enfrentadas no in??cio da carreira.

Avaliação da performance empresarial: as métricas tradicionais versus as métricas baseadas em valor

Mestrado em Controlo e Gestão dos Negócios

Planeamento espacial marinho das áreas marinhas protegidas: o caso de estudo da ára protegida de gestão de recursos: Caloura - ilhéu de Vila Franca do Campo

Tese de Doutoramento, Ciências do Mar (Ecologia Marinha), 26 de Novembro de 2013, Universidade dos Açores.

Evaluation of 99mTc-Sestamibi as a potential tool to investigate PgP activity in inflammation

Introduction: In the XXI Century ’s Society the scientific investigation process has been growing steadily , and the field of the pharmaceutical research is one of the most enthusiastic and relevant . Here, it is very important to correlate observed functional alterations with possibly modified drug bio distribution patterns . Cancer, inflammation and inf ection are processes that induce many molecular intermediates like cytokines, chemokines and other chemical complexes that can alter the pharmacokinetics of many drugs. One cause of such changes is thought to be the modulator action of these complexes in t he P - Glyco p rotein activity, because they can act like inducers/inhibitors of MDR - 1 expression. This protein results from the expression of MDR - 1 gene, and acts as an ATP energy - dependent efflux pump, with their substrates including many drugs , like antiretrovirals, anticancers, anti - infectives, immunosuppressants, steroids or opioids . Objectives: Because of the lack of methods to provide helpful information in the investigation of in vivo molecular changes in Pgp activity during infection/infl ammation processes, and its value in the explanation of the altered drug pharmacokinetic, this paper want to evaluate the potential utility of 99m Tc - Sestamibi scintigraphy during this kind of health sciences investigation. Although the a im is indeed to create a technique to the in vivo study of Pgp activity, this preliminary Project only reaches the in vitro study phase, assumed as the first step in a n evaluation period for a new tool development. Materials and Methods: For that reason , we are performing in vitro studies of influx and efflux of 99m Tc - Sestamibi ( that is a substrate of Pgp) in hepatocytes cell line (HepG2). We are interested in clarify the cellular behavior of this radiopharmaceutical in Lipopolysaccharide(LPS) stimulated cells ( well known in vitro model of inflammation) to possibly approve this methodology. To validate the results, the Pgp expression will be finally evaluated using Western Blot technique. Results: Up to this moment , we still don’t have the final results, but we have already enough data to let us believe that LPS stimulation induce a downregulation of MDR - 1, and consequently Pgp, which could conduce to a prolonged retention of 99m Tc - Sestamibi in the inflamed cells . Conclusions: If and when this methodology demonstrate the promising results we expect, one will be able to con clude that Nuclear Medicine is an important tool to help evidence based research also on this specific field .

Anthropogenic impacts in the deep sea of the Azores : fishing and litter

Tese de Doutoramento em Ciências do Mar, especialidade em Ecologia Marinha.

Exporting "failure": why research from rich countries may not benefit the developing world

The '10/90 gap' was first highlighted by the Global Forum for Health Research. It refers to the finding that 90% of worldwide medical research expenditure is targeted at problems affecting only 10% of the world's population. Applying research results from the rich world to the problems of the poor may be a tempting, potentially easy and convenient solution for this gap. This paper had the objective of presenting arguments that such an approach runs the risk of exporting failure. Health interventions that are shown to be effective in the specific context of a Western industrialized setting will not necessarily work in the developing world.

Uma leitura sobre a medicina baseada na evidência a partir de Ludwik Fleck: entre incomensurabilidades e sincretismos

Tendo como base o contributo inovador de Fleck para o estudo do conhecimento médico, procura-se neste artigo explorar a ideia da incomensurabilidade entre estilos de pensamento. O objetivo principal é o de discutir em que medida as recentes reconfigurações suscitadas pela consolidação da Medicina Baseada na Evidência se têm traduzido na reformulação dos fundamentos da prática clínica. A partir da ilustração exploratória da especialidade de Medicina Geral e Familiar, sustenta-se que o contexto da praxis clínica implica articulações compósitas entre diferentes estilos de pensamento. Daí resulta que em lugar do conceito de incomensurabilidade, poderá ser mais adequado aprofundar as potencialidades da ideia de sincretismo epistemológico.