1,010 research outputs found

    Contribution of Different Patient Information Sources to Create the Best Possible Medication History

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    Introduction: Obtaining the best possible medication history is the crucial step in medication reconciliation. Our aim was to evaluate the potential contributions of the main data sources available - patient/caregiver, hospital medical records, and shared electronic health records - to obtain an accurate 'best possible medication history'. Material and Methods: An observational cross-sectional study was conducted. Adult patients taking at least one medicine were included. Patient interview was performed upon admission and this information was reconciled with hospital medical records and shared electronic health records, assessed retrospectively. Concordance between sources was assessed. In the shared electronic health records, information was collected for four time-periods: the preceding three, six, nine and 12-months. The proportion of omitted data between time-periods was analysed. Results: A total of 148 patients were admitted, with a mean age of 54.6 +/- 16.3 years. A total of 1639 medicines were retrieved. Only 29% were collected simultaneously in the three sources of information, 40% were only obtained in shared electronic health records and only 5% were obtained exclusively from patients. The total number of medicines gathered in shared electronic health records considering the different time frames were 778 (three-months), 1397 (six-months), 1748 (nine-months), and 1933 (12-months). Discussion: The use of shared electronic health records provides data that were omitted in the other data sources available and retrieving the information at six months is the most efficient procedure to establish the basis of the best possible medication history. Conclusion: Shared electronic health records should be the preferred source of information to supplement the patient or caregiver interview in order to increase the accuracy of best possible medication history of the patient, particularly if collected within the prior six months

    SMART: Unique splitting-while-merging framework for gene clustering

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    Copyright @ 2014 Fa et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Successful clustering algorithms are highly dependent on parameter settings. The clustering performance degrades significantly unless parameters are properly set, and yet, it is difficult to set these parameters a priori. To address this issue, in this paper, we propose a unique splitting-while-merging clustering framework, named “splitting merging awareness tactics” (SMART), which does not require any a priori knowledge of either the number of clusters or even the possible range of this number. Unlike existing self-splitting algorithms, which over-cluster the dataset to a large number of clusters and then merge some similar clusters, our framework has the ability to split and merge clusters automatically during the process and produces the the most reliable clustering results, by intrinsically integrating many clustering techniques and tasks. The SMART framework is implemented with two distinct clustering paradigms in two algorithms: competitive learning and finite mixture model. Nevertheless, within the proposed SMART framework, many other algorithms can be derived for different clustering paradigms. The minimum message length algorithm is integrated into the framework as the clustering selection criterion. The usefulness of the SMART framework and its algorithms is tested in demonstration datasets and simulated gene expression datasets. Moreover, two real microarray gene expression datasets are studied using this approach. Based on the performance of many metrics, all numerical results show that SMART is superior to compared existing self-splitting algorithms and traditional algorithms. Three main properties of the proposed SMART framework are summarized as: (1) needing no parameters dependent on the respective dataset or a priori knowledge about the datasets, (2) extendible to many different applications, (3) offering superior performance compared with counterpart algorithms.National Institute for Health Researc

    Mucosal immunization with PspA (Pneumococcal surface protein A)-adsorbed nanoparticles targeting the lungs for protection against pneumococcal infection

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    Burden of pneumonia caused by Streptococcus pneumoniae remains high despite the availability of conjugate vaccines. Mucosal immunization targeting the lungs is an attractive alternative for the induction of local immune responses to improve protection against pneumonia. Our group had previously described the development of poly(glycerol adipate-co-ω-pentadecalactone) (PGA-co-PDL) polymeric nanoparticles (NPs) adsorbed with Pneumococcal surface protein A from clade 4 (PspA4Pro) within L-leucine microcarriers (nanocomposite microparticles-NCMPs) for mucosal delivery targeting the lungs (NP/NCMP PspA4Pro). NP/NCMP PspA4Pro was now used for immunization of mice. Inoculation of this formulation induced anti-PspA4Pro IgG antibodies in serum and lungs. Analysis of binding of serum IgG to intact bacteria showed efficient binding to bacteria expressing PspA from clades 3, 4 and 5 (family 2), but no binding to bacteria expressing PspA from clades 1 and 2 (family 1) was observed. Both mucosal immunization with NP/NCMP PspA4Pro and subcutaneous injection of the protein elicited partial protection against intranasal lethal pneumococcal challenge with a serotype 3 strain expressing PspA from clade 5 (PspA5). Although similar survival levels were observed for mucosal immunization with NP/NCMP PspA4Pro and subcutaneous immunization with purified protein, NP/NCMP PspA4Pro induced earlier control of the infection. Conversely, neither immunization with NP/NCMP PspA4Pro nor subcutaneous immunization with purified protein reduced bacterial burden in the lungs after challenge with a serotype 19F strain expressing PspA from clade 1 (PspA1). Mucosal immunization with NP/NCMP PspA4Pro targeting the lungs is thus able to induce local and systemic antibodies, conferring protection only against a strain expressing PspA from the homologous family 2

    Sentimientos de adolescentes con Diabetes Mellitus delante del proceso de vivir con la enfermedad

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    Qualitative research conducted in a diabetes service in the countryside of the state of Ceará, Brazil, with 11 teenagers with diabetes mellitus. The study aimed to understand the experience of adolescents facing the process of living with diabetes. Data were collected in 2007 May and June, through semi-structured interviews. It was observed that the teenager faces difficulties since the moment of diagnosis, especially because their food habits and lifestyles need to change, triggering feelings like fear, insecurity and anger. Over time, they incorporate the necessary changes to treatment and care, and begin to see the disease as normal. One concludes that it is necessary to understand teenagers, their behaviors, fears and desires and support them in the different areas of this experience.Investigación cualitativa, llevada a cabo en un servicio de diabetes del interior del estado de Ceará, Brasil, con 11 adolescentes con diabetes mellitus. El objetivo fue comprender la experiencia del adolescente delante del proceso de vivir con diabetes. Los datos fueron recolectados entre mayo y junio de 2007 a través de entrevistas semi estructuradas. Se observó que el adolescente enfrenta dificultades desde el momento del diagnóstico, sobre todo en el plan alimentar y cambios en el estilo de vida, desencadenando sentimientos como miedo, inseguridad e ira. Con el tiempo, incorporan los cambios necesarios al tratamiento y atención, y llegan a ver la enfermedad como algo normal. En conclusión, que es necesario entender los adolescentes, sus comportamientos, miedos y deseos, y apoyarlos en las diferentes áreas de esta experiencia.Pesquisa de natureza qualitativa, realizada em um serviço de diabetes do interior do Ceará com 11 adolescentes portadores de diabetes mellitus. O estudo objetivou compreender a experiência do adolescente frente ao processo de viver com o diabetes. Os dados foram coletados nos meses de maio e junho de 2007 por meio de entrevista semiestruturada. Constatou-se que o adolescente enfrenta dificuldades desde o momento do diagnóstico, principalmente no plano alimentar e nas mudanças no estilo de vida, desencadeando sentimentos como medo, insegurança e revolta. Com o passar do tempo, incorporam as mudanças necessárias ao tratamento e cuidados; e passam a ver a doença de forma normal. Conclui-se que é necessário compreender os adolescentes, seus comportamentos, medos e anseios e apoiá-los nos diversos âmbitos dessa experiência.Secretaria Municipal de Saúde de Pio IX-PI Programa de Saúde da FamíliaUniversidade Federal do Ceará Faculdade de Farmácia Odontologia e Enfermagem Departamento de EnfermagemUniversidade Federal de São Paulo (UNIFESP) Programa de Pós-Graduação em Saúde ColetivaUNIFESP, Programa de Pós-Graduação em Saúde ColetivaSciEL

    In Silico Evidence for Gluconeogenesis from Fatty Acids in Humans

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    The question whether fatty acids can be converted into glucose in humans has a long standing tradition in biochemistry, and the expected answer is “No”. Using recent advances in Systems Biology in the form of large-scale metabolic reconstructions, we reassessed this question by performing a global investigation of a genome-scale human metabolic network, which had been reconstructed on the basis of experimental results. By elementary flux pattern analysis, we found numerous pathways on which gluconeogenesis from fatty acids is feasible in humans. On these pathways, four moles of acetyl-CoA are converted into one mole of glucose and two moles of CO2. Analyzing the detected pathways in detail we found that their energetic requirements potentially limit their capacity. This study has many other biochemical implications: effect of starvation, sports physiology, practically carbohydrate-free diets of inuit, as well as survival of hibernating animals and embryos of egg-laying animals. Moreover, the energetic loss associated to the usage of gluconeogenesis from fatty acids can help explain the efficiency of carbohydrate reduced and ketogenic diets such as the Atkins diet

    Anthropometric, biochemical and clinical assessment of malnutrition in Malaysian patients with advanced cirrhosis

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    <p>Abstract</p> <p>Background</p> <p>There is limited data on the nutritional status of Asian patients with various aetiologies of cirrhosis. This study aimed to determine the prevalence of malnutrition and to compare nutritional differences between various aetiologies.</p> <p>Methodology</p> <p>A cross-sectional study of adult patients with decompensated cirrhosis was conducted. Nutritional status was assessed using standard anthropometry, serum visceral proteins and subjective global assessment (SGA).</p> <p>Results</p> <p>Thirty six patients (mean age 59.8 ± 12.8 years; 66.7% males; 41.6% viral hepatitis; Child-Pugh C 55.6%) with decompensated cirrhosis were recruited. Malnutrition was prevalent in 18 (50%) patients and the mean caloric intake was low at 15.2 kcal/kg/day. SGA grade C, as compared to SGA grade B, demonstrated significantly lower anthropometric values in males (BMI 18.1 ± 1.6 vs 26.3 ± 3.5 kg/m2, p < 0.0001; MAMC 19.4 ± 1.5 vs 24.5 ± 3.6 cm, p = 0.002) and females (BMI 19.4 ± 2.7 vs 28.9 ± 4.3, p = 0.001; MAMC 18.0 ± 0.9 vs 28.1 ± 3.6, p < 0.0001), but not with visceral proteins. The SGA demonstrated a trend towards more malnutrition in Child-Pugh C compared to Child-Pugh B liver cirrhosis (40% grade C vs 25% grade C, p = 0.48). Alcoholic cirrhosis had a higher proportion of SGA grade C (41.7%) compared to viral (26.7%) and cryptogenic (28.6%) cirrhosis, but this was not statistically significant.</p> <p>Conclusion</p> <p>Significant malnutrition in Malaysian patients with advanced cirrhosis is common. Alcoholic cirrhosis may have more malnutrition compared to other aetiologies of cirrhosis.</p

    Measurement of the t(t)over-bar production cross section in the dilepton channel in pp collisions at √s=8 TeV

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    The top-antitop quark (t (t) over bar) production cross section is measured in proton-proton collisions at root s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb(-1). The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239 +/- 2 (stat.) +/- 11 (syst.) +/- 6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model

    BFD-22 a new potential inhibitor of BRAF inhibits the metastasis of B16F10 melanoma cells and simultaneously increased the tumor immunogenicity

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    Benzofuroxan is an interesting ring system, which has shown a wide spectrum of biological responses against tumor cell lines. We investigated, herein, the antitumor effects of benzofuroxan derivatives (BFDs) in vitro and in a melanoma mouse model. Cytotoxic effects of twenty-two BFDs were determined by MTT assay. Effects of BFD-22 in apoptosis and cell proliferation were evaluated using Annexin V-FITC/PI and CFSE staining. In addition, the effects in the cell cycle were assessed. Flow cytometry, western blot, and fluorescence microscopy analysis were employed to investigate the apoptosis-related proteins and the BRAF signaling. Cell motility was also exploited through cell invasion and migration assays. Molecular docking approach was performed in order to verify the BFD-22 binding mode into the ATP catalytic site of BRAF kinase. Moreover, the BFD-22 antitumor effects were evaluated in a melanoma murine model using B16F10. BFD-22 was identified as a potential hit against melanoma cells. BFD-22 induced apoptosis and inhibited cell proliferation of B16F10 cells. BFD-22 has suppressed, indeed, the migratory and invasive behavior of B16F10 cells. Cyclin D1 and CDK4 expression were reduced leading to cell cycle arrest at G0/G1 phase. Of note, phosphorylation of BRAF at Ser338 was strongly down-regulated by BFD-22 in B16F10 cells. The accommodation/orientation into the binding site of BRAF was similar of BAY43-9006 (co-crystallized inhibitor of BRAF, sorafenib). Importantly, BFD-22 presented in vivo antimetastatic effects and showed better therapeutic efficacy than sorafenib and taxol. BFD-22 can be considered as a new lead compound and, then, can be helpful for the designing of novel drug candidates to treat melanoma
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