1,721,090 research outputs found

    Fractalkine - a proinflammatory chemokine in rheumatoid arthritis

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    Fractalkine (CX3CL1), so far the only member of the CX3C class of chemokines, and its receptor, CX3CR1, are strongly expressed in the chronically inflamed synovial tissue of patients with rheumatoid arthritis (RA). Due to the specific binding of Fractalkine to its receptor, many proinflammatory reactions involved in the pathogenesis of RA are triggered. Functionally, fractalkine plays an important proinflammatory role in RA pathogenesis as characterized by induction of synovial angiogenesis, chemotaxis, activation of monocytes and T cells as well as the stimulation of proliferation and synthesis of matrix degrading enzymes (matrix metalloproteinases, MMP) in synovial fibroblasts. Fractalkine thus may represent a novel target molecule for therapeutic intervention in RA

    Candida pneumonia in patients without definitive immunodeficiency

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    The occurrence of community-acquired pneumonia due to yeast-like fungi of the genus Candida in patients without manifest immunodeficiency has previously been discounted. However, such pneumonias may indeed occur in patients with chronic parenchymal lung damage, e.g. from nicotine. Candida pneumonia can be triggered in these patients for example by trivial viral infections. Three corresponding cases are discussed

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Candida pneumonia in patients without definitive immunodeficiency

    No full text
    The occurrence of community-acquired pneumonia due to yeast-like fungi of the genus Candida in patients without manifest immunodeficiency has previously been discounted. However, such pneumonias may indeed occur in patients with chronic parenchymal lung damage, e.g. from nicotine. Candida pneumonia can be triggered in these patients for example by trivial viral infections. Three corresponding cases are discussed
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