149 research outputs found

    Pancreatic Pseudocysts Transpapillary and Transmural Drainage

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    Background: Pancreatic pseudocyst endoscopic drainage has been described as a good treatment option, with morbidity and mortality rates that are lower than surgery. The aim of our study is to describe the efficacy of different forms of endoscopic drainage and estimate pseudocyst recurrence rate after short follow up period

    DNA barcoding of Ceramiales (Rhodophyta) around the Maltese islands reveals hidden biodiversity in the central Mediterranean

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    The genetic biodiversity of Mediterranean macroalgae is generally understudied, a fact which is especially important in the case of morphologically cryptic taxa. As a result, it is often challenging to compare DNA barcodes from Mediterranean samples to references in online databases since, very often, no close hits are available. At a regional scale, of around 1124 records of algae in the Mediterranean Sea, only 114 species have been barcoded.peer-reviewe

    Quality of life in systemic lupus erythematosus.

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    The SF-20 and the SF-36 are the most frequently used questionnaires for assessing the quality of life in SLE patients. The SF-36 is actually considered the most suitable for this disease, due to the inclusion of fatigue, a manifestation frequently observed in SLE patients. Using these instruments, it has been clearly demonstrated that patients with SLE have a worse quality of life than healthy people of the same age. Some aspects of daily life, like physical activity, job, social relationship and vitality, are particularly affected. In the majority of studies, an inverse relation between quality of life and disease activity has been observed. The influence the damage has on the quality of life is more complex, since a greater number of variables are involved. In fact, the amount of damage largely depends on the organ involved and on functional impairment resulting from it. To explain the variability in the quality of life among different patients, it is important to consider, besides the clinical complaints, the psycho-social dimension of each person. In fact, some SLE patients, unlike others, cope well with the disease. People behave differently when faced with critical situations, i.e. after being diagnosed with a chronic disease; their reaction depends on the degree of support they receive from family, friends and colleagues, and from the different strategies of coping, that they use

    Primary pulmonary nodular Amyloidosis

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    Primary nodular amyloidosis of the lung is an uncommon manifestation. The disease runs a benign course, but offers diagnostic problems due to non-specific radiological features entering the big field of the solitary nodule. We describe the case of a 60 year old man with multiple nodules on the left lung operated on diagnostic and therapeutic video-assisted thoracoscopy and discuss the possibilities, if any, of suspecting such a disease through radiologic characteristics along with findings from the patient’s history, physical examination and laboratory tests

    Learned Value Magnifies Salience-Based Attentional Capture

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    Visual attention is captured by physically salient stimuli (termed salience-based attentional capture), and by otherwise task-irrelevant stimuli that contain goal-related features (termed contingent attentional capture). Recently, we reported that physically nonsalient stimuli associated with value through reward learning also capture attention involuntarily (Anderson, Laurent, & Yantis, PNAS, 2011). Although it is known that physical salience and goal-relatedness both influence attentional priority, it is unknown whether or how attentional capture by a salient stimulus is modulated by its associated value. Here we show that a physically salient, task-irrelevant distractor previously associated with a large reward slows visual search more than an equally salient distractor previously associated with a smaller reward. This magnification of salience-based attentional capture by learned value extinguishes over several hundred trials. These findings reveal a broad influence of learned value on involuntary attentional capture

    Enhanced phagocytosis of Corynebacterium pseudotuberculosis by monocyte-macrophage cells from goats naturally infected with caprine arthritis encephalitis virus

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    Sanches B.G.S., Souza F.N., Azedo M.R., Batista C.F., Bertagnon H.G., Blagitz M.G. & Della Libera A.M.M.P. 2012. [Enhanced phagocytosis of Corynebacterium pseudotuberculosis by monocyte-macrophage cells from goats naturally infected with caprine arthritis encephalitis virus.] Fagocitose intensificada de Corynebacterium pseudotuberculosis por celulas da serie monocito-macrofago de caprinos naturalmente infectados pelo virus da artrite encefalite. Pesquisa Veterinaria Brasileira 32(12):1225-1229. Departamento de Clinica Medica, Faculdade de Medicina Veterinaria e Zootecnia, Universidade de Sao Paulo, Avenida Prof. Dr. Orlando Marques de Paiva 87, Cidade Universitaria, Sao Paulo, SP 05508-270, Brazil. E-mail: [email protected] Caprine arthritis encephalitis (CAE) and caseous lymphadenitis (CL) have high incidence and transmissibility in small ruminants. Since both virus have tropism for macrophages and monocytes and affect the innate immune response, it is believed that CAE can predispose the animal to infection by Corynebacteruim pseudotuberculosis, the etiological agent of CL. To confirm this hypothesis, we evaluated phagocytosis from the monocyte-macrophage cells from 30 Saanen goats. Goats were uniformly divided in two groups according to results of agar gel immunodiffusion test for CAE virus (CAEV). Peripheral blood mononuclear cells were isolated by density gradient centrifugation and the monocyte-macrophage cells were isolated from the mononuclear cells by their adhesion properties in plaques. Afterwards, phagocytosis of C. psudotuberculosis was performed for two hours at 37 degrees C, 5% of CO2, and assessed by microscopic visualization. There was no difference in the percentage of monocyte-macrophage cells that phagocytozed C. bovis between groups (P = 0.41). However, when phagocytosis rates were classified according to the number of C. pseudotuberculosis phagocyted, the percentage of monocyte-macrophage cells that internalized more than 12 bacteria were higher in serologically CAEV positive animals compared to the serologically negative ones (P < 0.001). Furthermore, a positive and significant correlation (r = 0.488; P = 0.006) between the percentage of monocyte-macrophage cells that internalized more than 12 bacteria and the percentage of monocyte that were carrying out phagocytosis was also encountered in serologically CAEV positive goats, however the same were not observed in serologically negative ones. These results demonstrated an alteration in the intensity of C. pseudotuberculosis phagocytosis by monocytes-macrophages from goats infected by CAEV. Thus, these results indicated that goats infected with CAEV may be more susceptible to CL

    Dissociable Effects of Reward on Attentional Learning: From Passive Associations to Active Monitoring

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    Visual selective attention (VSA) is the cognitive function that regulates ongoing processing of retinal input in order for selected representations to gain privileged access to perceptual awareness and guide behavior, facilitating analysis of currently relevant information while suppressing the less relevant input. Recent findings indicate that the deployment of VSA is shaped according to past outcomes. Targets whose selection has led to rewarding outcomes become relatively easier to select in the future, and distracters that have been ignored with higher gains are more easily discarded. Although outcomes (monetary rewards) were completely predetermined in our prior studies, participants were told that higher rewards would follow more efficient responses. In a new experiment we have eliminated the illusory link between performance and outcomes by informing subjects that rewards were randomly assigned. This trivial yet crucial manipulation led to strikingly different results. Items that were associated more frequently with higher gains became more difficult to ignore, regardless of the role (target or distracter) they played when differential rewards were delivered. Therefore, VSA is shaped by two distinct reward-related learning mechanisms: one requiring active monitoring of performance and outcome, and a second one detecting the sheer association between objects in the environment (whether attended or ignored) and the more-or-less rewarding events that accompany them
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