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  1. Article ; Online: E-cigarette Use and Disease Outcomes in Inflammatory Bowel Diseases: A Case-Control Study.

    Sheehan, Gabriel T / Twardus, Shaina W / Cagan, Andrew / Ananthakrishnan, Ashwin N

    Digestive diseases and sciences

    2022  Volume 68, Issue 1, Page(s) 208–213

    Abstract: Introduction: Traditional cigarette use adversely impacts disease outcomes in Crohn's disease (CD). There has been a worldwide increase in the use of e-cigarettes over the past decade. The impact of use of nicotine containing e-cigarettes on disease ... ...

    Abstract Introduction: Traditional cigarette use adversely impacts disease outcomes in Crohn's disease (CD). There has been a worldwide increase in the use of e-cigarettes over the past decade. The impact of use of nicotine containing e-cigarettes on disease outcomes in CD or ulcerative colitis (UC) has not been well defined.
    Methods: This was a retrospective case-control study of patients with CD or UC who were current users of nicotine containing e-cigarettes (cases). Each case was matched to two non-vaping controls. Our primary study outcome was a composite of new biologic initiation, switch of existing biologic therapy, or IBD-related hospitalization or surgery over 2 years. Multivariable models adjusting for relevant covariates were construction.
    Results: The study consisted of 127 patients with IBD who were current e-cigarette users compared to 251 controls. Current e-cigarette users were younger than non-users and were more likely to have had an IBD-related surgery previously. On multivariable analysis among those with CD, current e-cigarette use was not associated with higher risk of study outcome (OR 0.82, 95% CI 0.36-1.87). No difference was observed separately among those who were current or former smokers. Similarly, in those with UC, current e-cigarette use was not associated with the primary outcome (OR 1.05, 95% CI 0.33-3.39).
    Conclusion: Current e-cigarette use was not associated with worse outcomes among patients with IBD. However, larger studies particularly of patients de novo initiating vaping are needed to draw robust conclusions. Patients should be discouraged from initiating vaping recognizing overall adverse health effects.
    MeSH term(s) Humans ; Electronic Nicotine Delivery Systems ; Case-Control Studies ; Nicotine ; Retrospective Studies ; Colitis, Ulcerative/diagnosis ; Colitis, Ulcerative/therapy ; Crohn Disease/diagnosis ; Crohn Disease/epidemiology
    Chemical Substances Nicotine (6M3C89ZY6R)
    Language English
    Publishing date 2022-05-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 304250-9
    ISSN 1573-2568 ; 0163-2116
    ISSN (online) 1573-2568
    ISSN 0163-2116
    DOI 10.1007/s10620-022-07539-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The CD4

    Pedersen, Thomas K / Brown, Eric M / Plichta, Damian R / Johansen, Joachim / Twardus, Shaina W / Delorey, Toni M / Lau, Helena / Vlamakis, Hera / Moon, James J / Xavier, Ramnik J / Graham, Daniel B

    Immunity

    2022  Volume 55, Issue 10, Page(s) 1909–1923.e6

    Abstract: Reciprocal interactions between host T helper cells and gut microbiota enforce local immunological tolerance and modulate extra-intestinal immunity. However, our understanding of antigen-specific tolerance to the microbiome is limited. Here, we developed ...

    Abstract Reciprocal interactions between host T helper cells and gut microbiota enforce local immunological tolerance and modulate extra-intestinal immunity. However, our understanding of antigen-specific tolerance to the microbiome is limited. Here, we developed a systematic approach to predict HLA class-II-specific epitopes using the humanized bacteria-originated T cell antigen (hBOTA) algorithm. We identified a diverse set of microbiome epitopes spanning all major taxa that are compatible with presentation by multiple HLA-II alleles. In particular, we uncovered an immunodominant epitope from the TonB-dependent receptor SusC that was universally recognized and ubiquitous among Bacteroidales. In healthy human subjects, SusC-reactive T cell responses were characterized by IL-10-dominant cytokine profiles, whereas in patients with active Crohn's disease, responses were associated with elevated IL-17A. Our results highlight the potential of targeted antigen discovery within the microbiome to reveal principles of tolerance and functional transitions during inflammation.
    MeSH term(s) CD4-Positive T-Lymphocytes ; Crohn Disease ; Epitopes, T-Lymphocyte ; Humans ; Immunodominant Epitopes ; Interleukin-10 ; Interleukin-17
    Chemical Substances Epitopes, T-Lymphocyte ; Immunodominant Epitopes ; Interleukin-17 ; Interleukin-10 (130068-27-8)
    Language English
    Publishing date 2022-09-16
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1217235-2
    ISSN 1097-4180 ; 1074-7613
    ISSN (online) 1097-4180
    ISSN 1074-7613
    DOI 10.1016/j.immuni.2022.08.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Fecal microbiota transplantation: Uses, questions, and ethics.

    Grigoryan, Zoya / Shen, Michael J / Twardus, Shaina W / Beuttler, Marc M / Chen, Lea Ann / Bateman-House, Alison

    Medicine in microecology

    2020  Volume 6

    Abstract: Fecal microbiota transplantation (FMT) has rapidly grown in notoriety and popularity worldwide as a treatment for both recurrent and ... ...

    Abstract Fecal microbiota transplantation (FMT) has rapidly grown in notoriety and popularity worldwide as a treatment for both recurrent and refractory
    Language English
    Publishing date 2020-10-20
    Document type Journal Article
    ISSN 2590-0978
    ISSN (online) 2590-0978
    DOI 10.1016/j.medmic.2020.100027
    Database MEDical Literature Analysis and Retrieval System OnLINE

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