1,721,128 research outputs found
Probiotics, Prebiotics and antibiotics in medical management of inflammatory bowel disease
No full textNot Don
Inflammatory bowel diseases and spondyloarthropathies
No full textSpondyloarthritis (SpA) is a group of diseases with similar clinical, radiologic, and serologic features, including SpA associated with inflammatory bowel disease (IBD-associated SpA). SpA is the most frequent extraintestinal manifestation in patients with IBD. Separate recommendations/guidelines are available for the treatment of axial and peripheral SpA and for both Crohn disease and ulcerative colitis. When IBD and SpA coexist, the therapeutic strategy should be modulated taking into account the variable manifestations and complications of IBD in terms of intestinal and extraintestinal features, and the clinical manifestations of SpA
IBD: IBD and spondyloarthritis: Joint management
No full textSpondyloarthritis (SpA) is the most common extraintestinal manifestation of IBD. SpA symptoms are not always recognized in patients with IBD. Subsequently, patients with symptoms of SpA can be underdiagnosed with effective treatment delayed. Cooperation between gastroenterologists and rheumathologists is necessary and, ideally, an integrated management of these patients should be adopted
Timing and protocols of clinical and endoscopic surveillance of Barrett's esophagus
No full textBarrett’s esophagus (BE) is a premalignant lesion in which normal squamous epi- thelium of the esophagus is replaced by metaplastic columnar epithelium of any histological subtype [1]. Several guidelines for diagnosing and managing BE have been published; however, they differ significantly among and within countries [1–3]. Only few large well-designed trials have been conducted so far [4–6]
Probiotics, Prebiotics, and Antibiotics in IBD
No full textThe rationale for using probiotics, prebiotics, and antibiotics in IBD is based on convincing evidence that implicates intestinal bacteria in the pathogenesis of the disease. Probiotics are “living organisms, which upon ingestion in certain numbers, exert health benefits beyond inherent basic nutrition.” Several mechanisms have been proposed to account for the action of probiotics. These include antagonistic activity against pathogenic bacteria, either by inhibition of adherence and translocation, or by production of antibacterial substances such as antimicrobial peptides and hydrogen peroxide. Probiotics also stimulate mucosal defense, both at the level of immune and epithelial function. Encouraging results have been obtained with probiotic therapy in experimental colitis. VSL#3, a highly concentrated cocktail of probiotics has been shown to be effective in the prevention of pouchitis onset and relapses. Results on the use of probiotics in UC are promising, both in terms of the prevention of relapses and the treatment of mild-to-moderate attacks. Results in Crohn’s disease are not yet clear because of conflicting data and the limited number of well-performed studies. Prebiotics are dietary substances, usually nondigestible carbohydrates, which beneficially affect the host by selectively stimulating the growth and activity of protective commensal enteric bacteria. Evidence supporting the use of these nutraceuticals in IBD is still limited. The use of antibiotics in UC is not supported by the available studies. Antibiotics have an essential role in treating the septic complications of Crohn’s disease, including intra-abdominal and perianal abscesses and perianal fistulae. The use of antibiotics in pouchitis is largely justified although proper controlled trials have not been conducted
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Predictors of early recurrence after strictureplasty for Crohn's disease of the small bowel during the years of biologics
No full textBackground: The identification of patients prone to early recurrence of Crohn's disease at the site of a strictureplasty is fundamental in the clinical practice. Aims: Aim of the study is to detect the risk factors for early reoperation for recurrence after primary strictureplasty. Methods: From 2000, patients undergoing a primary strictureplasty and a subsequent reoperation for recurrence of Crohn's disease at the site of a strictureplasty were included. Univariate and multivariable linear regression models were performed to analyse the relationship between the time to recurrence and independent variables. Results: Fifty-nine patients were included. Median time to recurrence was 4.5 years (0.7–12.6). At the multivariate linear regression, early relapse was significantly associated with use of biologics before primary surgery (−2.69, p < 0.0001) and location of disease in the ileum (−1.61, p 0.017). The use of biologics after surgery was similar between groups (40.7 vs 37.5%, p 0.79). Conclusions: The location of Crohn's disease in the ileum and the use of biologics before surgery are strong predictors of early site-specific recurrence after strictureplasty. In this group of patients, a tailored follow-up and aggressive postoperative treatment should be considered
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