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  1. Article: Necessary but not sufficient: unique author identifiers.

    Harrison, Andrew Marc / Harrison, Anthony Mark

    BMJ innovations

    2016  Volume 2, Issue 4, Page(s) 141–143

    Language English
    Publishing date 2016-09-23
    Publishing country England
    Document type Journal Article
    ISSN 2055-642X
    ISSN 2055-642X
    DOI 10.1136/bmjinnov-2016-000135
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Thesis ; Online: Development, testing, and refining the failure to rescue sepsis sniffer

    Harrison, Andrew Marc

    2015  

    Abstract: Background: Sepsis is one of the most lethal and expensive in hospital conditions in the Unites States and around the world. International consensus guidelines for the diagnosis and management of sepsis have been established. Compliance with these ... ...

    Abstract Background: Sepsis is one of the most lethal and expensive in hospital conditions in the Unites States and around the world. International consensus guidelines for the diagnosis and management of sepsis have been established. Compliance with these guidelines has been demonstrated to substantially improve outcomes such as hospital length of stay (LOS), intensive care unit (ICU) LOS, and mortality. However, there are significant delays in timely and appropriate recognition of sepsis, as well as delays in timely and appropriate treatment after diagnosis. Objective: To develop and implement a sepsis detection and alert system for use in the ICU setting. Several knowledge gaps must be closed to achieve this goal. Methods: First, an optimal electronic medical record (EMR)-based algorithm for the detection of failure to recognize severe sepsis was developed. An algorithm for the detection of failure of timely and appropriate treatment of severe sepsis was also developed. Second, the best method of alert delivery for failure to recognize and treat severe sepsis was developed. This process was performed in the context of alert fatigue, interruption, human error, and information overload. Third, to demonstrate efficacy, this surveillance system for the detection of failure to recognize and treat severe sepsis was implemented in the ICU setting. Results: A failure to recognize and treat severe sepsis detection and alert system was successfully developed and implemented in the ICU setting. Conclusion: The work presented in this thesis proved the feasibility of iterative development, testing, and real-world implementation of electronic surveillance of sepsis resuscitation. This research paves the way for meaningful EMR use to enhance the safety of hospitalized patients.
    Keywords Information Technology|Medicine|Information science
    Language ENG
    Publishing date 2015-01-01 00:00:01.0
    Publisher College of Medicine - Mayo Clinic
    Publishing country us
    Document type Thesis ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Granuloma Presence at Initial Surgery Predicts Need for Repeat Surgery Independent of Rutgeerts Score in Crohn's Disease.

    Ertem, Furkan U / Rivers, Claudia Ramos / Watson, Andrew R / Tang, Gong / Schwartz, Marc / Johnston, Elyse / Barrie, Arthur / Harrison, Janet / Dueker, Jeffrey M / Hartman, Doug / Binion, David G

    Inflammatory bowel diseases

    2023  Volume 29, Issue 12, Page(s) 1895–1900

    Abstract: Background: Approximately half of Crohn's disease (CD) patients experience recurrence and need for repeat resections, highlighting need for prognostic biomarkers. Presence of epithelioid granuloma on surgical tissue and high Rutgeerts endoscopic score ... ...

    Abstract Background: Approximately half of Crohn's disease (CD) patients experience recurrence and need for repeat resections, highlighting need for prognostic biomarkers. Presence of epithelioid granuloma on surgical tissue and high Rutgeerts endoscopic score are associated with postoperative CD clinical recurrence. We sought to evaluate presence of epithelioid granuloma at first surgery and Rutgeerts score as a combined risk assessment for CD surgical recurrence.
    Methods: Our study included consented CD patients who underwent initial ileocecal resection and were prospectively followed postoperatively. From 2009 to 2019, 418 CD patients underwent initial ileocecal resection with >4 years of follow-up, including postoperative endoscopic assessment (Rutgeerts score).
    Results: Postoperative CD patients were grouped based on granuloma presence (30.6%; n = 128) or absence (69.4%; n = 290). Endoscopic recurrence (defined as Rutgeerts score ≥i2) was similar between the granuloma (26%) and no granuloma (25%) groups, respectively (P = .82). Patients with granuloma and CD endoscopic recurrence at first postoperative endoscopy had higher number of bowel surgeries compared with all other groups (no granuloma or CD endoscopic recurrence, P = .007; no granuloma but CD endoscopic recurrence present, P = .04; granuloma present and no CD endoscopic recurrence, P = .04). Epithelioid granuloma presence was associated with 1.65 times higher risk of subsequent surgery independently from first postoperative endoscopic recurrence Rutgeerts score.
    Conclusions: Granuloma presence on initial surgical histology is immediately available and identifies high-risk CD patients who may benefit from early postoperative treatment, and these precision intervention trials are warranted.
    MeSH term(s) Humans ; Crohn Disease/drug therapy ; Colon/surgery ; Colon/pathology ; Colonoscopy ; Reoperation ; Ileum/surgery ; Ileum/pathology ; Granuloma/etiology ; Granuloma/surgery ; Granuloma/pathology ; Recurrence ; Retrospective Studies
    Language English
    Publishing date 2023-01-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 1340971-2
    ISSN 1536-4844 ; 1078-0998
    ISSN (online) 1536-4844
    ISSN 1078-0998
    DOI 10.1093/ibd/izad008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Marginal zone B cells produce 'natural' atheroprotective IgM antibodies in a T cell-dependent manner.

    Harrison, James / Newland, Stephen A / Jiang, Wei / Giakomidi, Despoina / Zhao, Xiaohui / Clement, Marc / Masters, Leanne / Corovic, Andrej / Zhang, Xian / Drago, Fabrizio / Ma, Marcella / Ozsvar Kozma, Maria / Yasin, Froher / Saady, Yuta / Kothari, Hema / Zhao, Tian X / Shi, Guo-Ping / McNamara, Coleen A / Binder, Christoph J /
    Sage, Andrew P / Tarkin, Jason M / Mallat, Ziad / Nus, Meritxell

    Cardiovascular research

    2024  Volume 120, Issue 3, Page(s) 318–328

    Abstract: Aims: The adaptive immune response plays an important role in atherosclerosis. In response to a high-fat/high-cholesterol (HF/HC) diet, marginal zone B (MZB) cells activate an atheroprotective programme by regulating the differentiation and accumulation ...

    Abstract Aims: The adaptive immune response plays an important role in atherosclerosis. In response to a high-fat/high-cholesterol (HF/HC) diet, marginal zone B (MZB) cells activate an atheroprotective programme by regulating the differentiation and accumulation of 'poorly differentiated' T follicular helper (Tfh) cells. On the other hand, Tfh cells activate the germinal centre response, which promotes atherosclerosis through the production of class-switched high-affinity antibodies. We therefore investigated the direct role of Tfh cells and the role of IL18 in Tfh differentiation in atherosclerosis.
    Methods and results: We generated atherosclerotic mouse models with selective genetic deletion of Tfh cells, MZB cells, or IL18 signalling in Tfh cells. Surprisingly, mice lacking Tfh cells had increased atherosclerosis. Lack of Tfh not only reduced class-switched IgG antibodies against oxidation-specific epitopes (OSEs) but also reduced atheroprotective natural IgM-type anti-phosphorylcholine (PC) antibodies, despite no alteration of natural B1 cells. Moreover, the absence of Tfh cells was associated with an accumulation of MZB cells with substantially reduced ability to secrete antibodies. In the same manner, MZB cell deficiency in Ldlr-/- mice was associated with a significant decrease in atheroprotective IgM antibodies, including natural anti-PC IgM antibodies. In humans, we found a positive correlation between circulating MZB-like cells and anti-OSE IgM antibodies. Finally, we identified an important role for IL18 signalling in HF/HC diet-induced Tfh.
    Conclusion: Our findings reveal a previously unsuspected role of MZB cells in regulating atheroprotective 'natural' IgM antibody production in a Tfh-dependent manner, which could have important pathophysiological and therapeutic implications.
    MeSH term(s) Humans ; Mice ; Animals ; Immunoglobulin M ; Interleukin-18 ; B-Lymphocytes ; Atherosclerosis/genetics ; Atherosclerosis/prevention & control ; Cholesterol ; T-Lymphocytes, Helper-Inducer
    Chemical Substances Immunoglobulin M ; Interleukin-18 ; Cholesterol (97C5T2UQ7J)
    Language English
    Publishing date 2024-02-21
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80340-6
    ISSN 1755-3245 ; 0008-6363
    ISSN (online) 1755-3245
    ISSN 0008-6363
    DOI 10.1093/cvr/cvae027
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Triazole-derivatized near-infrared cyanine dyes enable local functional fluorescent imaging of ocular inflammation.

    Thomas, Chloe N / Alfahad, Nada / Capewell, Nicholas / Cowley, Jamie / Hickman, Eleanor / Fernandez, Antonio / Harrison, Neale / Qureshi, Omar S / Bennett, Naomi / Barnes, Nicholas M / Dick, Andrew D / Chu, Colin J / Liu, Xiaoxuan / Denniston, Alastair K / Vendrell, Marc / Hill, Lisa J

    Biosensors & bioelectronics

    2022  Volume 216, Page(s) 114623

    Abstract: Near-infrared (NIR) chemical fluorophores are promising tools for in-vivo imaging in real time but often succumb to rapid photodegradation. Indocyanine green (ICG) is the only NIR dye with regulatory approval for ocular imaging in humans; however, ICG, ... ...

    Abstract Near-infrared (NIR) chemical fluorophores are promising tools for in-vivo imaging in real time but often succumb to rapid photodegradation. Indocyanine green (ICG) is the only NIR dye with regulatory approval for ocular imaging in humans; however, ICG, when employed for applications such as labelling immune cells, has limited sensitivity and does not allow precise detection of specific inflammatory events, for example leukocyte recruitment during uveitic flare-ups. We investigated the potential use of photostable novel triazole NIR cyanine (TNC) dyes for detecting and characterising activated T-cell activity within the eye. Three TNC dyes were evaluated for ocular cytotoxicity in-vitro using a MTT assay and optimised concentrations for intraocular detection within ex-vivo porcine eyes after topical application or intracameral injections of the dyes. TNC labelled T-cell tracking experiments and mechanistic studies were also performed in-vitro. TNC-1 and TNC-2 dyes exhibited greater fluorescence intensity than ICG at 10 μM, whereas TNC-3 was only detectable at 100 μM within the porcine eye. TNC dyes did not demonstrate any ocular cell toxicity at working concentrations of 10 μM. CD4
    MeSH term(s) Animals ; Biosensing Techniques ; Fluorescent Dyes/metabolism ; Humans ; Indocyanine Green/metabolism ; Inflammation/chemically induced ; Optical Imaging/methods ; Swine ; Triazoles
    Chemical Substances Fluorescent Dyes ; Triazoles ; Indocyanine Green (IX6J1063HV)
    Language English
    Publishing date 2022-08-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 1011023-9
    ISSN 1873-4235 ; 0956-5663
    ISSN (online) 1873-4235
    ISSN 0956-5663
    DOI 10.1016/j.bios.2022.114623
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Orangutans venture out of the rainforest and into the Anthropocene.

    Spehar, Stephanie N / Sheil, Douglas / Harrison, Terry / Louys, Julien / Ancrenaz, Marc / Marshall, Andrew J / Wich, Serge A / Bruford, Michael W / Meijaard, Erik

    Science advances

    2018  Volume 4, Issue 6, Page(s) e1701422

    Abstract: Conservation benefits from understanding how adaptability and threat interact to determine a taxon's vulnerability. Recognizing how interactions with humans have shaped taxa such as the critically endangered orangutan ( ...

    Abstract Conservation benefits from understanding how adaptability and threat interact to determine a taxon's vulnerability. Recognizing how interactions with humans have shaped taxa such as the critically endangered orangutan (
    MeSH term(s) Animals ; Biodiversity ; Conservation of Natural Resources ; Ecosystem ; Endangered Species ; Human Activities ; Humans ; Pongo ; Population Dynamics ; Rainforest
    Language English
    Publishing date 2018-06-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2810933-8
    ISSN 2375-2548 ; 2375-2548
    ISSN (online) 2375-2548
    ISSN 2375-2548
    DOI 10.1126/sciadv.1701422
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Non-kin selection enhances complexity in cooperation: A unified quantitative law.

    Wang, Xiaoliang / Harrison, Andrew

    Computational biology and chemistry

    2022  Volume 101, Page(s) 107782

    Abstract: ... kin selection may be a hallmark of biological evolution, and play an important role in shaping life's ...

    Abstract How cooperation evolves in the presence of selfishness is a core problem in evolutionary biology. Selfish individuals tend to benefit themselves, which makes it harder to maintain cooperation between unrelated individuals and for living systems to evolve towards complex organizations. The general evolutionary model presented here identifies that non-kin selection is the root cause for cooperation between unrelated individuals and can enable and maintain higher complexity of biological organizations (the coexistence of more individuals of different types). The maintained number of genotypes within a cooperation organization is shown to follow a universal exponential law as a quantitative function of the population size and non-kin selection strength, showing a gene-pool-size invariance. Our results highlight that non-kin selection may be a hallmark of biological evolution, and play an important role in shaping life's potentials.
    MeSH term(s) Humans ; Biological Evolution ; Genotype
    Language English
    Publishing date 2022-10-22
    Publishing country England
    Document type Journal Article
    ISSN 1476-928X
    ISSN (online) 1476-928X
    DOI 10.1016/j.compbiolchem.2022.107782
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Governing Global Antimicrobial Resistance: 6 Key Lessons From the Paris Climate Agreement.

    Weldon, Isaac / Rogers Van Katwyk, Susan / Burci, Gian Luca / Giur, Dr / de Campos, Thana C / Eccleston-Turner, Mark / Fryer, Helen R / Giubilini, Alberto / Hale, Thomas / Harrison, Mark / Johnson, Stephanie / Kirchhelle, Claas / Lee, Kelley / Liddell, Kathleen / Mendelson, Marc / Ooms, Gorik / Orbinski, James / Piddock, Laura J V / Røttingen, John-Arne /
    Savulescu, Julian / Singer, Andrew C / Viens, A M / Wenham, Clare / Wiktorowicz, Mary E / Zaidi, Shehla / Hoffman, Steven J

    American journal of public health

    2022  Volume 112, Issue 4, Page(s) 553–557

    MeSH term(s) Anti-Bacterial Agents ; Climate ; Climate Change ; Drug Resistance, Bacterial ; Global Warming ; Humans
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2022-03-23
    Publishing country United States
    Document type Editorial ; Research Support, Non-U.S. Gov't
    ZDB-ID 121100-6
    ISSN 1541-0048 ; 0090-0036 ; 0002-9572
    ISSN (online) 1541-0048
    ISSN 0090-0036 ; 0002-9572
    DOI 10.2105/AJPH.2021.306695
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Differential requirement for the Polycomb repressor complex 2 in dendritic cell and tissue-resident myeloid cell homeostasis.

    Zhan, Yifan / Zhang, Yuxia / Zhang, Shengbo / Coughlan, Hannah / Baldoni, Pedro L / Jacquelot, Nicolas / Cao, Wang H J / Preston, Simon / Louis, Cynthia / Rautela, Jai / Pellegrini, Marc / Wicks, Ian P / Alexander, Warren S / Harrison, Leonard C / Lew, Andrew M / Smyth, Gordon K / Nutt, Stephen L / Chopin, Michaël

    Science immunology

    2021  Volume 6, Issue 63, Page(s) eabf7268

    Abstract: ... DC/macrophage homeostasis. In contrast, SUZ12 deficiency markedly impaired the capacity of DCs and ...

    Abstract Dendritic cells (DCs) and macrophages are at the forefront of immune responses, modifying their transcriptional programs in response to their tissue environment or immunological challenge. Posttranslational modifications of histones, such as histone H3 lysine-27 trimethylation (H3K27me3) by the Polycomb repressive complex 2 (PRC2), are tightly associated with epigenetic regulation of gene expression. To explore whether H3K27me3 is involved in either the establishment or function of the mononuclear phagocyte system, we selectively deleted core components of PRC2, either EZH2 or SUZ12, in CD11c-expressing myeloid cells. Unexpectedly, EZH2 deficiency neither prevented the deposition and maintenance of H3K27me3 in DCs nor hindered DC/macrophage homeostasis. In contrast, SUZ12 deficiency markedly impaired the capacity of DCs and macrophages to maintain H3K27me3. SUZ12 ablation induced a rapid loss of the alveolar macrophage and Langerhans cell networks under both steady state and inflammatory conditions because these cells could no longer proliferate to facilitate their self-renewal. Despite the reduced H3K27me3, DC development and function were unaffected by SUZ12 ablation, suggesting that PRC2-mediated gene repression was dispensable for DC homeostasis. Thus, the role of SUZ12 highlights the fundamentally different homeostatic mechanisms used by tissue-resident myeloid cells versus DCs.
    MeSH term(s) Animals ; Dendritic Cells/immunology ; Homeostasis/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Transgenic ; Myeloid Cells/immunology ; Polycomb Repressive Complex 2/deficiency ; Polycomb Repressive Complex 2/immunology
    Chemical Substances Suz12 protein, mouse ; Polycomb Repressive Complex 2 (EC 2.1.1.43)
    Language English
    Publishing date 2021-09-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2470-9468
    ISSN (online) 2470-9468
    DOI 10.1126/sciimmunol.abf7268
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Body size and risk of colorectal cancer molecular defined subtypes and pathways: Mendelian randomization analyses.

    Papadimitriou, Nikos / Qu, Conghui / Harrison, Tabitha A / Bever, Alaina M / Martin, Richard M / Tsilidis, Konstantinos K / Newcomb, Polly A / Thibodeau, Stephen N / Newton, Christina C / Um, Caroline Y / Obón-Santacana, Mireia / Moreno, Victor / Brenner, Hermann / Mandic, Marko / Chang-Claude, Jenny / Hoffmeister, Michael / Pellatt, Andrew J / Schoen, Robert E / Harlid, Sophia /
    Ogino, Shuji / Ugai, Tomotaka / Buchanan, Daniel D / Lynch, Brigid M / Gruber, Stephen B / Cao, Yin / Hsu, Li / Huyghe, Jeroen R / Lin, Yi / Steinfelder, Robert S / Sun, Wei / Van Guelpen, Bethany / Zaidi, Syed H / Toland, Amanda E / Berndt, Sonja I / Huang, Wen-Yi / Aglago, Elom K / Drew, David A / French, Amy J / Georgeson, Peter / Giannakis, Marios / Hullar, Meredith / Nowak, Johnathan A / Thomas, Claire E / Le Marchand, Loic / Cheng, Iona / Gallinger, Steven / Jenkins, Mark A / Gunter, Marc J / Campbell, Peter T / Peters, Ulrike / Song, Mingyang / Phipps, Amanda I / Murphy, Neil

    EBioMedicine

    2024  Volume 101, Page(s) 105010

    Abstract: Background: Obesity has been positively associated with most molecular subtypes of colorectal cancer (CRC); however, the magnitude and the causality of these associations is uncertain.: Methods: We used Mendelian randomization (MR) to examine ... ...

    Abstract Background: Obesity has been positively associated with most molecular subtypes of colorectal cancer (CRC); however, the magnitude and the causality of these associations is uncertain.
    Methods: We used Mendelian randomization (MR) to examine potential causal relationships between body size traits (body mass index [BMI], waist circumference, and body fat percentage) with risks of Jass classification types and individual subtypes of CRC (microsatellite instability [MSI] status, CpG island methylator phenotype [CIMP] status, BRAF and KRAS mutations). Summary data on tumour markers were obtained from two genetic consortia (CCFR, GECCO).
    Findings: A 1-standard deviation (SD:5.1 kg/m
    Interpretation: Body size was more strongly linked to the serrated (Jass types 1 and 2) and alternate (Jass type 3) pathways of colorectal carcinogenesis in comparison to the traditional pathway (Jass type 4).
    Funding: Cancer Research UK, National Institute for Health Research, Medical Research Council, National Institutes of Health, National Cancer Institute, American Institute for Cancer Research, Brigham and Women's Hospital, Prevent Cancer Foundation, Victorian Cancer Agency, Swedish Research Council, Swedish Cancer Society, Region Västerbotten, Knut and Alice Wallenberg Foundation, Lion's Cancer Research Foundation, Insamlingsstiftelsen, Umeå University. Full funding details are provided in acknowledgements.
    MeSH term(s) Humans ; Female ; Proto-Oncogene Proteins B-raf/genetics ; Proto-Oncogene Proteins B-raf/metabolism ; Mendelian Randomization Analysis ; DNA Methylation ; Proto-Oncogene Proteins p21(ras)/genetics ; Proto-Oncogene Proteins p21(ras)/metabolism ; Microsatellite Instability ; Mutation ; Phenotype ; Colorectal Neoplasms/epidemiology ; Colorectal Neoplasms/genetics ; Colorectal Neoplasms/metabolism ; Body Size ; CpG Islands
    Chemical Substances Proto-Oncogene Proteins B-raf (EC 2.7.11.1) ; Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2)
    Language English
    Publishing date 2024-02-12
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2851331-9
    ISSN 2352-3964
    ISSN (online) 2352-3964
    DOI 10.1016/j.ebiom.2024.105010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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