223 research outputs found

    Eosinophilic fasciitis: demographics, disease pattern and response to treatment: report of 12 cases and review of the literature

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    BACKGROUND: Eosinophilic fasciitis is a rare scleroderma-like illness. The clinical spectrum of the disease has evolved since its initial description. METHODS: We identified all patients diagnosed with eosinophilic fasciitis over the past 10 years at our scleroderma clinic. Demographics, disease pattern, serologies, tissue pathology and reponse to treatment were all recorded. RESULTS: Twelve patients with eosinophilic fasciitis were identified in our clinic over the past 10 years. The mean age at diagnosis was 49.8 +/- 9.8 years, with nine female and three male patients. The first symptoms were noticed at an average of 8.8 +/- 6.1 months before diagnosis. The mean initial absolute peripheral blood eosinophil count was 1188 +/- 1059 cells/L. Two patients had a monoclonal gammopathy, and two had positive ANA titers. All patients received corticosteroids, 10 of whom received the equivalent dose of \u3e 20 mg/day of prednisone for more than a month. Five patients received hydroxychloroquine, two received methotrexate, one received cyclosporine, one received topical tacrolimus, and one received sulfasalazine. At a mean follow up of 17.6 months (range 2-94 months), 8 patients had a good response to treatment, 2 patients had no effect, and 2 patients had a poor response to treatment. CONCLUSION: High dose corticosteroid treatment lasting longer than a month with or without an immunosuppressive agent helped most patients with eosinophilic fasciitis, best results seen in those patients who were initiated treatment early on after their first symptoms

    An Anglo-Saxon fragment of Justinus's Epitome

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    Copyright © Cambridge University Press 1987In 1910, Samuel Brandt published a description and photograph of a fragment of Justinus's Epitome of the Historiae Philippicae of Pompeius Trogus. The leaf, whose present location is unknown, belonged at that time to the collection of Ernst Fischer at Weinheim. Fischer dated its script, an Anglo-Saxon minuscule, to about AD 800, which, as Brandt observed, would mean that it antedated the earliest known manuscripts of the text, which are ninth-century. Although E. A. Lowe indicated in his Codices Latini Antiquiores that the fragment was lost, it has continued to attract scholarly attention. Professor Bernhard Bischoff suggested that the fragment could be identified with a copy of Justinus listed among the books of Gerward, palace librarian of Louis the Pious. This implied connection with the Carolingian court, taken together with Alcuin's naming of Justinus's work among the books described in the poem on York and his later association with the Carolingian court, has raised the possibility of an English origin for the Weinheim manuscript and therefore also for the earliest known branch of the text. As L.D. Reynolds remarked, ‘This fragment has a significance quite out of keeping with its size.

    ESPEN Practical Guideline: clinical nutrition in liver disease

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    Desnutrición; Insuficiencia hepática aguda grave; CirrosisMalnutrition; Acute liver failure; CirrhosisDesnutrició; Insuficiència hepàtica aguda greu; CirrosiIntroducción: la Guía Práctica se basa en la actual guía científica de la ESPEN sobre nutrición clínica en las enfermedades hepáticas. Métodos: se ha reducido y transformado en diagramas de flujo para facilitar su uso en la práctica clínica. La guía está dedicada a todos los profesionales, incluidos médicos, dietistas, nutricionistas y enfermeras, que trabajan con pacientes con enfermedad hepática crónica. Resultados: la guía presenta un total de 103 pronunciamientos y recomendaciones con breves comentarios para el manejo nutricional y metabólico de pacientes con (i) insuficiencia hepática aguda grave, (ii) esteatohepatitis alcohólica, (iii) enfermedad hepática grasa no alcohólica, (iv) cirrosis hepática, y (v) cirugía o trasplante de hígado. Conclusión: las recomendaciones relacionadas con enfermedades están precedidas por recomendaciones generales sobre el diagnóstico del estado nutricional en los pacientes hepáticos y sobre las complicaciones hepáticas asociadas a la nutrición médica.Background: the Practical Guideline is based on the current scientifi c ESPEN guide on Clinical Nutrition in Liver Disease. Methods: it has been shortened and transformed into fl ow charts for easier use in clinical practice. The guideline is dedicated to all professionals including physicians, dieticians, nutritionists and nurses working with patients with chronic liver disease. Results: a total of 103 statements and recommendations are presented with short commentaries for the nutritional and metabolic management of patients with (i) acute liver failure, (ii) alcoholic steatohepatitis, (iii) non-alcoholic fatty liver disease, (iv) liver cirrhosis, and (v) liver surgery/ transplantation. Disease-related recommendations are preceded by general recommendations on the diagnosis of nutritional status in liver patients and on liver complications associated with medical nutrition. Conclusion: this Practical Guideline gives guidance to health care providers involved in the management of liver disease on how to offer optimal nutritional care

    Insights into the Function of the CRM1 Cofactor RanBP3 from the Structure of Its Ran-Binding Domain

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    Proteins bearing a leucine-rich nuclear export signal (NES) are exported from the nucleus by the transport factor CRM1, which forms a cooperative ternary complex with the NES-bearing cargo and with the small GTPase Ran. CRM1-mediated export is regulated by RanBP3, a Ran-interacting nuclear protein. Unlike the related proteins RanBP1 and RanBP2, which promote disassembly of the export complex in the cytosol, RanBP3 acts as a CRM1 cofactor, enhancing NES export by stabilizing the export complex in the nucleus. RanBP3 also alters the cargo selectivity of CRM1, promoting recognition of the NES of HIV-1 Rev and of other cargos while deterring recognition of the import adaptor protein Snurportin1. Here we report the crystal structure of the Ran-binding domain (RBD) from RanBP3 and compare it to RBD structures from RanBP1 and RanBP2 in complex with Ran and CRM1. Differences among these structures suggest why RanBP3 binds Ran with unusually low affinity, how RanBP3 modulates the cargo selectivity of CRM1, and why RanBP3 promotes assembly rather than disassembly of the export complex. The comparison of RBD structures thus provides an insight into the functional diversity of Ran-binding proteins

    Writing in Britain and Ireland, c. 400 to c. 800

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    No abstract available

    A Potential New Pathway for Staphylococcus aureus Dissemination: The Silent Survival of S. aureus Phagocytosed by Human Monocyte-Derived Macrophages

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    Although considered to be an extracellular pathogen, Staphylococcus aureus is able to invade a variety of mammalian, non-professional phagocytes and can also survive engulfment by professional phagocytes such as neutrophils and monocytes. In both of these cell types S. aureus promptly escapes from the endosomes/phagosomes and proliferates within the cytoplasm, which quickly leads to host cell death. In this report we show that S. aureus interacted with human monocyte-derived macrophages in a very different way to those of other mammalian cells. Upon phagocytosis by macrophages, S. aureus persisted intracellularly in vacuoles for 3–4 days before escaping into the cytoplasm and causing host cell lysis. Until the point of host cell lysis the infected macrophages showed no signs of apoptosis or necrosis and were functional. They were able to eliminate intracellular staphylococci if prestimulated with interferon-γ at concentrations equivalent to human therapeutic doses. S. aureus survival was dependent on the alternative sigma factor B as well as the global regulator agr, but not SarA. Furthermore, isogenic mutants deficient in α-toxin, the metalloprotease aureolysin, protein A, and sortase A were efficiently killed by macrophages upon phagocytosis, although with different kinetics. In particular α-toxin was a key effector molecule that was essential for S. aureus intracellular survival in macrophages. Together, our data indicate that the ability of S. aureus to survive phagocytosis by macrophages is determined by multiple virulence factors in a way that differs considerably from its interactions with other cell types. S. aureus persists inside macrophages for several days without affecting the viability of these mobile cells which may serve as vehicles for the dissemination of infection

    Nucleo-cytoplasmic transport of proteins and RNA in plants

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    Merkle T. Nucleo-cytoplasmic transport of proteins and RNA in plants. Plant Cell Reports. 2011;30(2):153-176.Transport of macromolecules between the nucleus and the cytoplasm is an essential necessity in eukaryotic cells, since the nuclear envelope separates transcription from translation. In the past few years, an increasing number of components of the plant nuclear transport machinery have been characterised. This progress, although far from being completed, confirmed that the general characteristics of nuclear transport are conserved between plants and other organisms. However, plant-specific components were also identified. Interestingly, several mutants in genes encoding components of the plant nuclear transport machinery were investigated, revealing differential sensitivity of plant-specific pathways to impaired nuclear transport. These findings attracted attention towards plant-specific cargoes that are transported over the nuclear envelope, unravelling connections between nuclear transport and components of signalling and developmental pathways. The current state of research in plants is summarised in comparison to yeast and vertebrate systems, and special emphasis is given to plant nuclear transport mutants

    Components and regulation of nuclear transport processes

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    The spatial separation of DNA replication and gene transcription in the nucleus and protein translation in the cytoplasm is a uniform principle of eukaryotic cells. This compartmentalization imposes a requirement for a transport network of macromolecules to shuttle these components in and out of the nucleus. This nucleo-cytoplasmic transport of macromolecules is critical for both cell physiology and pathology. Consequently, investigating its regulation and disease-associated alterations can reveal novel therapeutic approaches to fight human diseases, such as cancer or viral infection. The characterization of the nuclear pore complex, the identification of transport signals and transport receptors, as well as the characterization of the Ran system (providing the energy source for efficient cargo transport) has greatly facilitated our understanding of the components, mechanisms and regulation of the nucleo-cytoplasmic transport of proteins in our cells. Here we review this knowledge with a specific emphasis on the selection of disease-relevant molecular targets for potential therapeutic intervention.COST Action [CM1106]; Fundacao para a Ciencia e a Tecnologia (FCT) [SFRH/BPD/84634/2012]info:eu-repo/semantics/publishedVersio
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