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  1. Article: Management of Acute Uncomplicated Diverticulitis May Exclude Antibiotic Therapy.

    Mayl, Jonathan / Marchenko, Mikhail / Frierson, Emily

    Cureus

    2017  Volume 9, Issue 5, Page(s) e1250

    Abstract: Diverticulitis is a common ailment that is prevalent in the developed world. As such, the management of diverticulitis places a substantial economic burden on healthcare. Research is ongoing to further elucidate both the pathogenesis of the disease, as ... ...

    Abstract Diverticulitis is a common ailment that is prevalent in the developed world. As such, the management of diverticulitis places a substantial economic burden on healthcare. Research is ongoing to further elucidate both the pathogenesis of the disease, as well as ways to reduce associated expenditures. One of these emerging areas of research calls into question the use of antibiotics during treatment of acute uncomplicated diverticulitis. Current guidelines are largely based on expert opinion, with little evidence supporting the standard practice of antibiotic therapy. In this literature review, we have compiled and analyzed the latest collection of evidence in managing acute uncomplicated diverticulitis. There have been two randomized controlled trials (RCTs) performed that assessed the possibility of treating acute uncomplicated diverticulitis without antibiotics. Both the Antibiotika Vid Okomplicerad Divertikulit (AVOD) study and Daniels, et al. have found that an observational approach to acute uncomplicated diverticulitis is not inferior to antibiotic treatment and does not result in increased complication or recurrence rates. We also reviewed a single-center cohort study, a prospective observational study, and two retrospective case-controlled studies comparing observational management versus antibiotic treatment in patients with acute uncomplicated diverticulitis. We found the results were comparable; there was no difference in complication rates or recurrence in any study. The consensus among the studies reviewed challenges the current practice guidelines issued by the American Gastroenterological Association. However, given the geographical difference in diverticular disease and inherent bias found in these studies, we cannot recommend a modification of the guidelines. Based on this literature review, we feel compelled to suggest, and strongly recommend, further research be conducted in the United States in order to bolster the already significant evidence against antibiotic therapy in acute uncomplicated diverticulitis.
    Language English
    Publishing date 2017-05-15
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.1250
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Development of a clickable activity-based protein profiling (ABPP) probe for agmatine deiminases.

    Marchenko, Mikhail / Thomson, Andrew / Ellis, Terri N / Knuckley, Bryan / Causey, Corey P

    Bioorganic & medicinal chemistry

    2015  Volume 23, Issue 9, Page(s) 2159–2167

    Abstract: Agmatine deiminases (AgDs) catalyze the hydrolytic conversion of agmatine (decarboxylated arginine) to N-carbamoylputrescine with concomitant release of ammonia. These enzymes, which are encoded by some pathogenic bacterial species, confer a competitive ... ...

    Abstract Agmatine deiminases (AgDs) catalyze the hydrolytic conversion of agmatine (decarboxylated arginine) to N-carbamoylputrescine with concomitant release of ammonia. These enzymes, which are encoded by some pathogenic bacterial species, confer a competitive survival advantage by virtue of energy production and acid tolerance through agmatine catabolism. Herein we report the development of a clickable activity-based protein profiling (ABPP) probe that targets the AgD encoded by Streptococcus mutans with high selectivity and sensitivity.
    MeSH term(s) Biocatalysis ; Click Chemistry ; Drug Design ; Hydrolases/analysis ; Hydrolases/metabolism ; Kinetics ; Molecular Probes/analysis ; Molecular Probes/chemical synthesis ; Molecular Probes/chemistry ; Molecular Structure ; Streptococcus mutans/enzymology ; Substrate Specificity
    Chemical Substances Molecular Probes ; Hydrolases (EC 3.-) ; agmatine deiminase (EC 3.5.3.12)
    Language English
    Publishing date 2015-05-01
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1161284-8
    ISSN 1464-3391 ; 0968-0896
    ISSN (online) 1464-3391
    ISSN 0968-0896
    DOI 10.1016/j.bmc.2015.03.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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