1,522 research outputs found

    Dynamics of sense-making and development of the narrative in the clinical exchange

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    The present work is aimed at exploring the relationship between the dynamics of sense-making carried out by the clinical exchange and the content of the patient’s narrative. To this end the relationship between the formal and functional mapping of a psychotherapy carried out by the Discourse Flow Analysis (DFA) and the analysis of the patient’s narrative provided by the Innovative Moment Coding System (IMCS) have been compared. The comparison concerns a 15-session good outcome Emotion- Focused Therapy (Lisa's case). Findings highlight the association between the formal and functional characteristics of the clinical dialogue and the content of the narrative. More in particular, an association between the U-shape trajectory of the super-ordered meaning depicted by DFA and the evolution of the innovative content of the narrative enucleated by the IMCS were found

    Efeitos protetores do choque térmico na sepse e na síndrome da resposta inflamatória sistêmica

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    Sepsis shock, multiorgan dysfunction and the acute respiratory distress syndrome are major contributors to morbidity and mortality in intensive care units. Animal studies have shown that these forms of injury can be attenuated or prevented if a phenomenon, called the stress response, is activated. The stress response, characterized by a transient downregulation of most cellular products and the upregulation of heat shockproteins (HSP), has been shown to provide protection to cells and experimental animals if triggered prior to or at an otherwise lethal injury. The mechanisms by which the stress response is protective are not known with certainty, but HSP appear to play an important role. This article summarizes the current literature on the effects of the stress response in protecting cells, organ systems and laboratory animals from lethal forms of systemicand organic damage.Sepse, disfunção orgânica múltipla e a síndrome da angústia respiratória aguda são as maiores causas e mortalidade nas unidades de terapia intensiva. Estudos em animais de laboratório demonstram que esta forma de injúria pode ser atenuada ou mesmo abolida se um fenômeno, conhecido como resposta ao estresse ou resposta ao choque térmico, for ativado. A resposta ao choque térmico, caracterizada pela suspensão transitória da produção da maioria das proteínas e pela ativação das proteínas do choque térmico (heat shock proteins - HSP), mostrou-se protetora a células e a animais de laboratório se desencadeada antes, ou imediatamente, que uma injúria letal. Os mecanismos pelos quais a resposta ao choque térmico é protetora não são claros,mas as proteínas do choque térmico parecem exercer um papel fundamental. Este artigo resume a literatura atual dos efeitos da resposta ao choque térmico em proteger células, órgãos e animais de laboratório de formas letais de sepse experimental

    Influência da função pulmonar e da força muscular na capacidade funcional de portadores de doença pulmonar obstrutiva crónica = The influence of lung function and muscular strength on the functional capacity of chronic obstructive pulmonary disease patients

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    Objectivo : Determinar que variável entre o volume expirado forçado no primeiro segundo (VEF1), a pressão parcial do oxigénio no sangue arterial (PaO2), a hipoxemia nocturna e a força muscular do quadricípite femoral pode predizer a distância percorrida no teste de caminhada de seis minutos (TC6) em doentes com DPOC. Doentes e métodos : Um estudo observacional do tipo transversal, envolvendo trinta doentes encaminhados a um programa de reabilitação pulmonar de um hospital universitário. A função pulmonar foi avaliada por espirometria, gasometria arterial e oximetria nocturna. A função muscular pela força muscular do quadricípite femoral e a avaliação da capacidade funcional pelo TC6. Resultados : A análise de regressão bivariada mostrou que a força do quadricípite femoral foi a única variá- vel que se mostrou estatisticamente significativa (p = 0,002) em predizer a distância, sendo responsá- vel por 38% da variância do TC6. Para essas variáveis a relação estabelecida estatisticamente foi que para cada quilo de força do quadricípite femoral, os doentes caminharam 5,9 metros no TC6. Conclusão : Os resultados indicam a importância da força muscular do MI em testes de esforço submáximo. Entre as variáveis estudadas, apenas a força muscular do quadricípite femoral pôde predizer a distância percorrida no TC6 em portadores de doença pulmonar obstrutiva crónica. Aim : To determine which variable (forced expiratory volume in 1 second (FEV1), partial pressure of oxygen in arterial blood (PaO2), nocturnal hypoxaemia and muscular strength of femoral quadriceps) can predict the distance walked in the six-minute walk test (6MWT) by COPD patients. Methods : A cross-sectional and observational study of thirty patients referred to a pulmonary rehabilita tion programme at a university hospital. Lung function was evaluated by spirometry, arterial blood gas analysis and nocturnal oximetry. Muscle function was evaluated by quadriceps strength and functional capacity by the 6MWT. Results : Bivariate regression analysis showed that quadriceps strength, was the only variable to correlate significantly with the distance walked in the 6MWT (p=0.002), accounting for 38% of the 6MWT variance. The statistical relationship established for these variables was 1kg of quadriceps strength equalled 5.9 metres walked in the 6MWT. Conclusions : Our results showed the importance of lower limb muscle strength in submaximal exercise testing. We conclude that femoral quadriceps muscle strength is the only one of the variables studied which can predict the distance COPD patients walk in the 6MWT

    Chronic Sleep Restriction during Pregnancy - Repercussion on Cardiovascular and Renal Functioning of Male Offspring

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    Changes in the maternal environment can induce fetal adaptations that result in the progression of chronic diseases in the offspring. the objective of the present study was to evaluate the effects of maternal chronic sleep restriction on blood pressure, renal function and cardiac baroreflex response on male offspring at adult age. Female 3-month-old Wistar rats were divided in two experimental groups: control (C) and chronic sleep restricted (CSR). Pregnancy was confirmed by vaginal smear. Chronic sleep restricted females were subjected to sleep restriction by the multiple platform technique for 20 h daily, between the 1st and 20th day of pregnancy. After birth, the litters were reduced to 6 rats per mother, and were designated as offspring from control (OC) and offspring from chronic sleep restricted (OCSR). Indirect blood pressure (BPi tail cuff) was measured by plethysmography in male offspring at 3 months old. Following, the renal function and cardiac baroreflex response were analyzed. Values of BPi in OCSR were significantly higher compared to OC [OC: 127 +/- 2.6 (19); OCSR: 144 +/- 2.5 (17) mmHg]. the baroreflex sensitivity to the increase of blood pressure was reduced in OCSR [Slope: OC: -2.6 +/- 0.15 (9); OCRS: -1.6 +/- 0.13 (9)]. Hypothalamic activity of ACE2 was significantly reduced in OCSR compared to OC [OC: 97.4 +/- 15 (18); OSR: 60.2 +/- 3.6 (16) UAF/min/protein mg]. Renal function alteration was noticed by the increase in glomerular filtration rate (GFR) observed in OCSR [OC: 6.4 +/- 0.2 (10); OCSR: 7.4 +/- 0.3 (7)]. Chronic sleep restriction during pregnancy caused in the offspring hypertension, altered cardiac baroreflex response, reduced ACE-2 activity in the hypothalamus and renal alterations. Our data suggest that the reduction of sleeping time along the pregnancy is able to modify maternal homeostasis leading to functional alterations in offspring.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Associacao Fundo de Incentivo a Pesquisa (AFIP)Universidade Federal de São Paulo, Dept Fisiol, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Psicobiol, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Biociencias, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Fisiol, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Psicobiol, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Biociencias, São Paulo, BrazilFAPESP: FAPESP-10/51665-4Web of Scienc

    A multivalent chimeric vaccine composed of Schistosoma mansoni SmTSP-2 and Sm29 was able to induce protection against infection in mice

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    Schistosoma mansoni is a blood fluke parasite responsible for schistosomiasis. The best long-term strategy to control schistosomiasis is through immunization combined with drug treatment. In this study, we cloned, expressed and purified SmTSP-2 fused to the N- and C-terminal halves of Sm29 and tested these chimeras as vaccine candidates using an adjuvant approved to be used in humans. The results demonstrated that vaccination with SmTSP-2 fused to N- or C-terminus of Sm29-induced reduction in worm burden and liver pathology when compared to control animals. Additionally, we detected high levels of mouse-specific IgG, IgG1 and IgG2a against both chimeras and significant amounts of IFN-γ and TNF-α and no IL-4. Finally, studies with sera from patients resistant to infection and living in schistosomiasis endemic areas revealed high levels of specific IgG to both chimeras when compared to healthy individuals. In conclusion, SmTSP-2/Sm29 chimeras tested here induced partial protection against infection and might be a potential vaccine candidate

    Dynamic capabilities for hire - How former host-country entrepreneurs as MNC subsidiary managers affect performance

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    MNC subsidiaries benefit from managers with entrepreneurial skills for finding superior combinations of MNC and host-country resources. However, such management skills are scarce. We reason that subsidiaries can improve their performance by hiring host-country entrepreneurs as managers since they develop similar skills in start-ups. Our theoretical model integrates mechanisms from entrepreneurial experience into theory on the microfoundations of dynamic capabilities. We test and support our prediction using longitudinal employer–employee data for 5587 foreign MNC subsidiaries in Portugal. Further, we show that performance effects are weaker when a subsidiary’s management is internationally diverse and stronger in dynamic host-country environments

    Genetic structure and pod morphology of Inga edulis cultivated vs. wild populations from the Peruvian Amazon

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    Research Highlights: This study assesses the genetic diversity and structure of the ice-cream-bean (Inga edulis Mart.) (Fabaceae), in wild and cultivated populations from the Peruvian Amazon. This research also highlights the importance of protecting the biodiversity of the forest in the Peruvian Amazon, to preserve the genetic resources of species and allow further genetic improvement. Background and Objectives: Ice-cream-bean is one of the most commonly used species in the Amazon region for its fruits and for shading protection of other species (e.g.: cocoa and coffee plantations). Comprehensive studies about the impact of domestication on this species’ genetic diversity are needed, to find the best conservation and improvement strategies. Materials and Methods: In the current study, the genetic structure and diversity were assessed by genotyping 259 trees, sampled in five wild and 22 cultivated I. edulis populations in the Peruvian Amazon, with microsatellite markers. Pod length was measured in wild and cultivated trees. Results: The average pod length in cultivated trees was significantly higher than that in wild trees. The expected genetic diversity and the average number of alleles was higher in the wild compared to the cultivated populations, thus, a loss of genetic diversity was confirmed in the cultivated populations. The cultivated trees in the Loreto region had the highest pod length and lowest allelic richness, nevertheless the wild populations’ genetic structure was not clearly differentiated (significantly different) from that of the cultivated populations. Conclusions: A loss of genetic diversity was confirmed in the cultivated populations. The species could have been simultaneously domesticated in multiple locations, usually from local origin. The original I. edulis Amazonian germplasm should be maintained. Cultivated populations’ new germplasm influx from wild populations should be undertaken to increase genetic diversity.info:eu-repo/semantics/publishedVersio

    Implications of asymptomatic infection for the natural history of selected parasitic tropical diseases

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    Progress has been made in the control or elimination of tropical diseases, with a significant reduction of incidence. However, there is a risk of re-emergence if the factors fueling transmission are not dealt with. Although it is essential to understand these underlying factors for each disease, asymptomatic carriers are a common element that may promote resurgence; their impact in terms of proportion in the population and role in transmission needs to be determined. In this paper, we review the current evidence on whether or not to treat asymptomatic carriers given the relevance of their role in the transmission of a specific disease, the efficacy and toxicity of existing drugs, the Public Health interest, and the benefit at an individual level, for example, in Chagas disease, to prevent irreversible organ damage. In the absence of other control tools such as vaccines, there is a need for safer drugs with good risk/benefit profiles in order to change the paradigm so that it addresses the complete infectious process beyond manifest disease to include treatment of non-symptomatic infected persons

    Genetic diversity in two threatened species of guitarfish (Elasmobranchii: Rhinobatidae) from the Brazilian and Argentinian coasts: an alert for conservation

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    The guitarfishes Pseudobatos horkelii and Pseudobatos percellens meet the criteria for threatened status as Critically Endangered (CR) and Endangered (EN), respectively. Both species occur in the Southern Atlantic Ocean. Considering the lack of data on the genetic structure of these species, the present study evaluated the genetic variability and population structure of the P. horkelii and P. percellens in the southern region of Brazil and the northern coast of Argentina, based on sequences of mitochondrial DNA, Control Region (D-loop). Samples of P. horkelii (n = 135) were analyzed in six localities situated in Northern Argentina, along the Brazilian states’ coast. The mean of nucleotide diversity was 0.0053, the ΦST was 0.4277 and demographic analysis of P. horkelii suggests the existence of stability of the populations, with D = 0.9929, FS = 2.0155, SSD = 0.0817, R = 0.2153. In P. percellens (n = 101) were analyzed from six Brazilian localities along the coast of Santa Catarina, Paraná, and São Paulo. The mean nucleotide diversity was 0.0014 and ΦST value of 0.2921, the demographic analysis indicates a high migration rate of P. percellens among the localities evaluated, with D = 0.5222, FS = 0.3528, SSD = 0.01785, R = 0.3890.As raias violas Pseudobatos horkelii e Pseudobatos percellens, são listados como “Criticamente em Perigo” (CR) e “Em Perigo” (EN), respectivamente. Ambas as espécies ocorrem no Sul do Oceano Atlântico. Considerando a falta de dados sobre a estrutura genética dessas espécies, o presente estudo avaliou a variabilidade genética e a estrutura populacional de P. horkelii e P. percellens na região sudeste do Brasil e litoral norte da Argentina, com base em sequências de DNA mitocondrial, região de controle (D-loop). Amostras de 135 indivíduos de P. horkelii analisados em seis localidades, situadas no norte da Argentina e ao longo da costa dos estados brasileiros. A média da diversidade nucleotídica foi de 0.0053, o índice ΦST foi de 0.4277 e a análise demográfica de P. horkelii, indicou a existência de estabilidade das populações, com D = 0.9929, Fus = 2.0155, SSD = 0.0817, R = 0.2153. Em 101 exemplares de P. percellens, foram analisados em seis localidades brasileiras ao longo do litoral de Santa Catarina, Paraná e São Paulo. A diversidade nucleotídica média foi de 0.0014 e o valor ΦST de 0.2921, a análise demográfica indicou uma alta taxa de migração de P. percellens entre as localidades analisadas, com D = 0.5222, FS = 0.3528, SSD = 0.01785, R = 0.3890.Fil: Cruz, Vanessa P.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Adachi, Aisni M. C. L.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Oliveira, Pablo H.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Ribeiro, Giovana S.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Paim, Fabilene G.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Souza, Bruno C.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Rodrigues, Alexandre S. F.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Vianna, Marcelo. Universidade Federal do Rio de Janeiro; BrasilFil: Delpiani, Sergio Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Díaz de Astarloa, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Rotundo, Matheus M.. Universidade Santa Cecília; BrasilFil: Mendonça, Fernando F.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Oliveira, Claudio. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Lessa, Rosangela P.. Universidad Federal Rural Pernambuco; BrasilFil: Foresti, Fausto. Universidade Estadual Paulista Julio de Mesquita Filho; Brasi
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