902 results on '"O'Brien P."'
Search Results
2. Getting outside the Box: Exploring Role Fluidity in Interprofessional Student Groups through the Lens of Activity Theory
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Byerly, Laura K., Floren, Leslie C., Yukawa, Michi, and O'Brien, Bridget C.
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Health professionals' roles and scopes often overlap, creating a need for role clarity in interprofessional teamwork. Yet, such clarity does not mean roles are fixed within teams and some literature suggests role flexibility can enhance team functioning. Interprofessional practice competencies and learning activities often emphasize knowledge and definition of roles, but rarely attend to the dynamic nature of roles and influential contextual factors. This study explores role fluidity in interprofessional student groups using an activity theory framework. Using a collective instrumental case study approach, the authors examine the fluidity of one physical therapy (PT) student's role within 3 different interprofessional (medical, pharmacy, PT) student groups completing nursing home patient care plans. Field notes, group debriefing interviews, and care plans were collected and coded from all care planning sessions. Codes mapped to group-specific activity systems that compared role-influencing interactions and tensions. The PT student's role fluidity varied in each group's activity system, influenced primarily by system tensions from implicit rules (e.g., encouraging questions), division of labor (e.g., rigid profession-based task assignment), and tool use (e.g., computers). Attention to modifiable system elements, such as tool use and explicit rules of inclusivity, could foster role fluidity and improve interprofessional teamwork and learning environments.
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- 2021
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3. Polyethyleneimine facilitates the growth and electrophysiological characterization of iPSC-derived motor neurons
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Meimei Yang, Daofeng You, Gang Liu, Yin Lu, Guangming Yang, Timothy O’Brien, David C. Henshall, Orla Hardiman, Li Cai, Min Liu, and Sanbing Shen
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iPSC-derived motor neurons ,Extracellular matrix ,Poly-l-ornithine ,Matrigel ,Polyethyleneimine ,Multielectrode array ,Medicine ,Science - Abstract
Abstract Induced pluripotent stem cell (iPSC) technology, in combination with electrophysiological characterization via multielectrode array (MEA), has facilitated the utilization of iPSC-derived motor neurons (iPSC-MNs) as highly valuable models for underpinning pathogenic mechanisms and developing novel therapeutic interventions for motor neuron diseases (MNDs). However, the challenge of MN adherence to the MEA plate and the heterogeneity presented in iPSC-derived cultures raise concerns about the reproducibility of the findings obtained from these cellular models. We discovered that one novel factor modulating the electrophysiological activity of iPSC-MNs is the extracellular matrix (ECM) used in the coating to support in vitro growth, differentiation and maturation of iPSC-MNs. The current study showed that two coating conditions, namely, Poly-L-ornithine/Matrigel (POM) and Polyethyleneimine (PEI) strongly promoted attachment of iPSC-MNs on MEA culture dishes compared to three other coating conditions, and both facilitated the maturation of iPSC-MNs as characterized by the detection of extensive electrophysiological activities from the MEA plates. POM coating accelerated the maturation of the iPSC-MNs for up to 5 weeks, which suits modeling of neurodevelopmental disorders. However, the application of PEI resulted in more even distribution of the MNs on the culture dish and reduced variability of electrophysiological signals from the iPSC-MNs in 7-week cultures, which permitted the detection of enhanced excitability in iPSC-MNs from patients with amyotrophic lateral sclerosis (ALS). This study provides a comprehensive comparison of five coating conditions and offers POM and PEI as favorable coatings for in vitro modeling of neurodevelopmental and neurodegenerative disorders, respectively.
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- 2024
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4. Experimental infection of ringtail possums (Pseudocheirus peregrinus) with Mycobacterium ulcerans, the agent of Buruli ulcer
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Kim R. Blasdell, Richard J. Ploeg, Emma C. Hobbs, Stephen Muhi, Sarah J. Riddell, Alexandra Cunneen, Michael L. Kelly, Kate Maynard, Tess R. Malcolm, Md. Tanjir Islam, Victoria Boyd, Timothy P. Stinear, Sacha J. Pidot, Eugene Athan, and Daniel P. O’Brien
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Medicine ,Science - Abstract
Abstract Buruli ulcer (BU) is a necrotizing disease of skin and soft tissue caused by the bacterium Mycobacterium ulcerans (MU). In Australia, where the disease is emerging in new geographic areas and human case numbers are increasing, native possum species act as reservoir hosts. To better understand the life history of MU in one of its natural hosts, we conducted intra-dermal challenge of six wild caught, MU-naïve common ringtail possums (Pseudocheirus peregrinus). All six animals developed BU disease consistent with that observed in naturally infected ringtail possums. Time to ulceration varied between 49 and 77 days (mean = 61.8 days). Molecular evidence of systemic infection was detected in five animals and was supported by consistent histopathological findings in four animals. Pathological findings included random, multifocal, granulomatous hepatitis in four possums, one of which also had a mild, multifocal, interstitial granulomatous pneumonia. Acid-fast bacilli were only evident in inflammatory foci beyond the primary inoculation site in one possum. The ringtail possum model of MU infection is an important tool for the investigation of bacterial transmission dynamics, pathogenesis and immune response in a natural host. Data from this model may improve disease risk modelling and help identify intervention points to stop zoonotic transmission and disease spread.
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- 2024
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5. Frugal engineering-inspired wearable augmented reality goggle system enables fluorescence-guided cancer surgery
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Leonid Shmuylovich, Christine M. O’Brien, Karen Nwosu, and Samuel Achilefu
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Fluorescence guided surgery ,Open source hardware ,Wearable ,Augmented reality ,Raspberry pi ,Medicine ,Science - Abstract
Abstract Disparities in surgical outcomes often result from subjective decisions dictated by surgical training, experience, and available resources. To improve outcomes, surgeons have adopted advancements in robotics, endoscopy, and intra-operative imaging including fluorescence-guided surgery (FGS), which highlights tumors and anatomy in real-time. However, technical, economic, and logistic challenges hinder widespread adoption of FGS beyond high-resource centers. To overcome these impediments, we combined laser diodes, Raspberry Pi cameras and computers, off-the-shelf optical components, and 3D-printed parts to make a battery-powered, compact, dual white light and NIR imaging system that has comparable performance to existing bulkier, pricier, and wall-powered technologies. We combined these components with off-the-shelf augmented reality (AR) glasses to create a fully-wearable fluorescence imaging AR Raspberry Pi-based goggle system (FAR-Pi) and validated performance in a pre-clinical cancer surgery model. Novel device design ensures distance-independent coalignment between real and augmented views. As an open-source, affordable, and adaptable system, FAR-Pi is poised to democratize access to FGS and improve health outcomes worldwide.
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- 2024
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6. Long-term effectiveness and safety of lomitapide in patients with homozygous familial hypercholesterolemia: an observational case series
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Patrizia Suppressa, Chiara Coppola, Veronica Cocco, and Sallyann O’Brien
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Homozygous familial hypercholesterolemia ,Low-density lipoprotein cholesterol ,Lomitapide ,Lipid-lowering therapy ,Apheresis ,PCSK9 inhibitors ,Medicine - Abstract
Abstract Background We assessed long-term real-world effectiveness and safety of lomitapide in patients with homozygous familial hypercholesterolemia (HoFH). Methods Retrospective case series of six patients with HoFH treated with lomitapide in an Italian clinic. Changes in low-density lipoprotein cholesterol (LDL-C) during lomitapide treatment were assessed. The effect on LDL-C of PCSK9 inhibitors, apheresis and lomitapide was evaluated. Additionally, high-density lipoprotein cholesterol (HDL-C), gastrointestinal tolerability, hepatic steatosis/elasticity, transaminases, and cardiovascular events and symptoms were assessed. Results Median age at HoFH clinical and molecular diagnoses was 25 (range 2–49) and 40 (29–71) years, respectively. Five (83.3%) had prior cardiovascular events. One patient received apheresis, which was subsequently discontinued. All patients received PCSK9 inhibitors but discontinued due to minimal effectiveness. Median (range) age at lomitapide initiation was 44 (28–73) years, with a median 47 (18–85) months’ treatment (mean dose 17.5 [5–40] mg/day). Mean (SD) baseline LDL-C was 263.2 (148.1) mg/dL, which decreased by 80% at nadir (52.8 [19.2] mg/dL) and 69% at last follow-up (81.3 [30.5] mg/dL). Four patients (66.7%) achieved LDL-C 70 years old). All patients with reported cardiovascular symptoms had improvements in symptoms, and all patients reported stabilization or regression of intima-media thickness and atheromatous plaques. Conclusions These long-term, real-world data demonstrate that lomitapide substantially reduced LDL-C for up to seven years. Most patients achieved LDL-C goal at some point, consistent with published Phase III trial and real-world evidence data. No patient discontinued lomitapide treatment. Further long-term follow-up in a larger patient population will be important to determine cardiovascular and other outcomes.
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- 2024
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7. Untargeted metabolomic analysis of human milk from healthy mothers reveals drivers of metabolite variability
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Zachary C. Holmes, Katariina Koivusaari, Claire E. O’Brien, Katherine V. Richeson, and Leila I. Strickland
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Medicine ,Science - Abstract
Abstract Understanding the human milk metabolome can help inform infant nutrition and health. Untargeted metabolomics was used to study breast milk from 31 healthy participants to assess the shared metabolites in milk from participants with various backgrounds and understand how different demographic, health, and environmental factors impact the milk metabolome. Breast milk samples were analyzed by four separate UPLC-MS/MS methods. Metabolite Set Enrichment Analysis was used to study the most and least variable metabolites. The associations between participant factors and the metabolome were assessed with redundancy analyses. Among all 31 participants and between each untargeted UPLC-MS/MS method, 731 metabolites were detected, of which 389 were shared among all participants. Of the shared metabolites, lactose was the least and lactobionate the most variable metabolite. In the biological super pathway analysis, xenobiotics were the most variable metabolites. Infant age, maternal age, number of live births, and pre-pregnancy BMI were associated with the milk metabolome. In conclusion, the most variable metabolites originate from environmental exposures while the well-conserved core metabolites are linked to cell metabolism or are crucial for infant nutrition and osmoregulation. Understanding the variability of the breast milk metabolome can help identify components that are crucial for infant nutrition, growth, and development.
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- 2024
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8. Tracking and modeling the movement of Queensland fruit flies, Bactrocera tryoni, using harmonic radar in papaya fields
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Anika L. Hurst, Allison L. O′Brien, Nicole D. Miller, Allysen M. Welty Peachey, James M. Yoder, Stefano G. De Faveri, Jodie Cheesman, Nicholas C. Manoukis, and Matthew S. Siderhurst
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Directional movement ,Modeling ,Field tracking ,Movement simulation ,Hidden Markov models ,Fractal analysis ,Medicine ,Science - Abstract
Abstract Determining movement parameters for pest insects such as tephritid fruit flies is critical to developing models which can be used to increase the effectiveness of surveillance and control strategies. In this study, harmonic radar was used to track wild-caught male Queensland fruit flies (Qflies), Bactrocera tryoni, in papaya fields. Experiment 1 continuously tracked single flies which were prodded to induce movement. Qfly movements from this experiment showed greater mean squared displacement than predicted by both a simple random walk (RW) or a correlated random walk (CRW) model, suggesting that movement parameters derived from the entire data set do not adequately describe the movement of individual Qfly at all spatial scales or for all behavioral states. This conclusion is supported by both fractal and hidden Markov model (HMM) analysis. Lower fractal dimensions (straighter movement paths) were observed at larger spatial scales (> 2.5 m) suggesting that Qflies have qualitatively distinct movement at different scales. Further, a two-state HMM fit the observed movement data better than the CRW or RW models. Experiment 2 identified individual landing locations, twice a day, for groups of released Qflies, demonstrating that flies could be tracked over longer periods of time.
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- 2024
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9. The feasibility and usability of mixed reality teaching in a hospital setting based on self-reported perceptions of medical students
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Michael Johnston, Megan O’Mahony, Niall O’Brien, Murray Connolly, Gabriella Iohom, Mohsin Kamal, Ahmed Shehata, and George Shorten
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Mixed reality ,Augmented reality ,Usability ,Feasibility ,Teaching ,Undergraduate ,Special aspects of education ,LC8-6691 ,Medicine - Abstract
Abstract Background Clinical teaching during encounters with real patients lies at the heart of medical education. Mixed reality (MR) using a Microsoft HoloLens 2 (HL2) offers the potential to address several challenges: including enabling remote learning; decreasing infection control risks; facilitating greater access to medical specialties; and enhancing learning by vertical integration of basic principles to clinical application. We aimed to assess the feasibility and usability of MR using the HL2 for teaching in a busy, tertiary referral university hospital. Methods This prospective observational study examined the use of the HL2 to facilitate a live two-way broadcast of a clinician-patient encounter, to remotely situated third and fourth year medical students. System Usability Scale (SUS) Scores were elicited from participating medical students, clinician, and technician. Feedback was also elicited from participating patients. A modified Evaluation of Technology-Enhanced Learning Materials: Learner Perceptions Questionnaire (mETELM) was completed by medical students and patients. Results This was a mixed methods prospective, observational study, undertaken in the Day of Surgery Assessment Unit. Forty-seven medical students participated. The mean SUS score for medical students was 71.4 (SD 15.4), clinician (SUS = 75) and technician (SUS = 70) indicating good usability. The mETELM Questionnaire using a 7-point Likert Scale demonstrated MR was perceived to be more beneficial than a PowerPoint presentation (Median = 7, Range 6–7). Opinion amongst the student cohort was divided as to whether the MR tutorial was as beneficial for learning as a live patient encounter would have been (Median = 5, Range 3–6). Students were positive about the prospect of incorporating of MR in future tutorials (Median = 7, Range 5–7). The patients’ mETELM results indicate the HL2 did not affect communication with the clinician (Median = 7, Range 7–7). The MR tutorial was preferred to a format based on small group teaching at the bedside (Median = 6, Range 4–7). Conclusions Our study findings indicate that MR teaching using the HL2 demonstrates good usability characteristics for providing education to medical students at least in a clinical setting and under conditions similar to those of our study. Also, it is feasible to deliver to remotely located students, although certain practical constraints apply including Wi-Fi and audio quality.
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- 2024
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10. Predicting chronic wasting disease in white-tailed deer at the county scale using machine learning
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Md Sohel Ahmed, Brenda J. Hanley, Corey I. Mitchell, Rachel C. Abbott, Nicholas A. Hollingshead, James G. Booth, Joe Guinness, Christopher S. Jennelle, Florian H. Hodel, Carlos Gonzalez-Crespo, Christopher R. Middaugh, Jennifer R. Ballard, Bambi Clemons, Charlie H. Killmaster, Tyler M. Harms, Joe N. Caudell, Kathryn M. Benavidez Westrich, Emily McCallen, Christine Casey, Lindsey M. O’Brien, Jonathan K. Trudeau, Chad Stewart, Michelle Carstensen, William T. McKinley, Kevin P. Hynes, Ashley E. Stevens, Landon A. Miller, Merril Cook, Ryan T. Myers, Jonathan Shaw, Michael J. Tonkovich, James D. Kelly, Daniel M. Grove, Daniel J. Storm, and Krysten L. Schuler
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Medicine ,Science - Abstract
Abstract Continued spread of chronic wasting disease (CWD) through wild cervid herds negatively impacts populations, erodes wildlife conservation, drains resource dollars, and challenges wildlife management agencies. Risk factors for CWD have been investigated at state scales, but a regional model to predict locations of new infections can guide increasingly efficient surveillance efforts. We predicted CWD incidence by county using CWD surveillance data depicting white-tailed deer (Odocoileus virginianus) in 16 eastern and midwestern US states. We predicted the binary outcome of CWD-status using four machine learning models, utilized five-fold cross-validation and grid search to pinpoint the best model, then compared model predictions against the subsequent year of surveillance data. Cross validation revealed that the Light Boosting Gradient model was the most reliable predictor given the regional data. The predictive model could be helpful for surveillance planning. Predictions of false positives emphasize areas that warrant targeted CWD surveillance because of similar conditions with counties known to harbor CWD. However, disagreements in positives and negatives between the CWD Prediction Web App predictions and the on-the-ground surveillance data one year later underscore the need for state wildlife agency professionals to use a layered modeling approach to ensure robust surveillance planning. The CWD Prediction Web App is at https://cwd-predict.streamlit.app/ .
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- 2024
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11. Multidisciplinary, multicomponent interventions to reduce frailty among older persons in residents of residential care facilities: a scoping review
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R. C. Ambagtsheer, M. J. Leach, L. M. O’Brien, J. Tyndall, J. Wardle, and J. Beilby
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Frailty ,Residential care facilities ,Model of care ,Multidisciplinary ,Multicomponent ,Medicine - Abstract
Abstract Background Frailty reduction and reversal have been addressed successfully among older populations within community settings. However, these findings may not be applicable to residential care settings, largely due to the complex and multidimensional nature of the condition. Relatively, few attempts at frailty prevention exist in residential settings. This review aims to identify and describe best practice models of care for addressing frailty among older populations in residential care settings. This research also sets out to explore the impact of multidisciplinary health service delivery models on health outcomes such as mortality, hospitalisations, quality of life, falls and frailty. Methods A scoping review of the literature was conducted to address the project objectives. Reference lists of included studies, bibliographic databases and the grey literature were systematically searched for literature reporting multidisciplinary, multidimensional models of care for frailty. Results The scoping review found no interventions that met the inclusion criteria. Of the 704 articles screened, 664 were excluded as not relevant. Forty articles were fully assessed, and while no eligible studies were found, relevant data were extracted from 10 near-eligible studies that reported single disciplines or single dimensions rather than a model of care. The physical, nutritional, medicinal, social and cognitive aspects of the near eligible studies have been discussed as playing a key role in frailty reduction or prevention care models. Conclusion This review has identified a paucity of interventions for addressing and reducing frailty in residential care settings. High-quality studies investigating novel models of care for addressing frailty in residential care facilities are required to address this knowledge gap. Similarly, there is a need to develop and validate appropriate screening and assessment tools for frailty in residential care populations. Health service providers and policy-makers should also increase their awareness of frailty as a dynamic and reversible condition. While age is a non-modifiable predictor of frailty, addressing modifiable factors through comprehensive care models may help manage and prevent the physical, social and financial impacts of frailty in the ageing population.
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- 2024
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12. SARS-CoV-2 Disease Severity and Cycle Threshold Values in Children Infected during Pre-Delta, Delta, and Omicron Periods, Colorado, USA, 2021–2022
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Laura Bankers, Shannon C. O’Brien, Diana M. Tapay, Erin Ho, Isaac Armistead, Alexis Burakoff, Samuel R. Dominguez, and Shannon R. Matzinger
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COVID-19 ,coronavirus disease ,SARS-CoV-2 ,severe acute respiratory syndrome coronavirus 2 ,viruses ,respiratory infections ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
In adults, viral load and disease severity can differ by SARS-CoV-2 variant, patterns less understood in children. We evaluated symptomatology, cycle threshold (Ct) values, and SARS-CoV-2 variants among 2,299 pediatric SARS-CoV-2 patients (0–21 years of age) in Colorado, USA, to determine whether children infected with Delta or Omicron had different symptom severity or Ct values than during earlier variants. Children infected during the Delta and Omicron periods had lower Ct values than those infected during pre-Delta, and children
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- 2024
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13. Creating demand for unmet needs: Agile Storytelling
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Jade Mehta, Emily Long, Vidhur Bynagari, Fereshtehossadat Shojaei, Fatemehalsadat Shojaei, Andrew R. W. O’Brien, and Malaz Boustani
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Agile science ,implementation science ,sickle cell disease ,demand ,storytelling ,Medicine - Abstract
IntroductionThe translational gap from the discovery of evidence-based solutions to their implementation in healthcare delivery organizations derives from an incorrect assumption that the need for change among executive, administrative, or clinical personnel is the same as the demand for change. For sickle cell disease (SCD), implementation of evidence-based guidelines is often delayed or obstructed due to lack of demand. This challenge allows for the persistence of resource limitations and care delivery models that do not meet the community's unique needs. Agile Storytelling is a process built on the scientific foundations of behavioral economics, complexity science, and network science to create local demand for the implementation of evidence-based solutions.MethodsAgile Storytelling includes a design phase and a testing phase. The design phase converts the evidence-based solution into a minimally viable story of a hero, a villain, struggle, drama, and a resolution. The testing phase evaluates the effectiveness of the story via a series of storytelling sprints in the target local healthcare delivery organization. The efficacy of Agile Storytelling was tested in an iterative n-of-1 case study design.ResultsAgile Storytelling was used in a large, urban, healthcare system within the United States to facilitate implementation of national SCD best-practice guidelines. After repeated failures attempting to use national and local data regarding the high societal need to hire a SCD-specific social worker, an Agile change conductor using Agile Storytelling was able to create demand for the new position within a week. This decision has ultimately improved patient outcomes and led to the adoption of a specialized collaborative care team for SCD within the health network.DiscussionAgile Storytelling can lead to structured, effective, and informed storytelling to create local demand within healthcare delivery organizations.
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- 2024
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14. A human model of Buruli ulcer: Provisional protocol for a Mycobacterium ulcerans controlled human infection study. [version 2; peer review: 1 approved, 2 approved with reservations]
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Stephen Muhi, Daniel P. O'Brien, Julia L. Marshall, Gayle Ross, Paul D.R. Johnson, Laura K. Mackay, Anand Ramakrishnan, James S. McCarthy, Marcel Doerflinger, Euzebiusz Jamrozik, Timothy P. Stinear, and Joshua Osowicki
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Buruli ulcer ,Bairnsdale ulcer ,Mycobacterium ulcerans ,M. ulcerans ,controlled human infection model ,eng ,Medicine ,Science - Abstract
Critical knowledge gaps have impeded progress towards reducing the global burden of disease due to Mycobacterium ulcerans, the cause of the neglected tropical disease Buruli ulcer (BU). Development of a controlled human infection model of BU has been proposed as an experimental platform to explore host-pathogen interactions and evaluate tools for prevention, diagnosis, and treatment. We have previously introduced the use case for a new human model and identified M. ulcerans JKD8049 as a suitable challenge strain. Here, we present a provisional protocol for an initial study, for transparent peer review during the earliest stages of protocol development. Following simultaneous scientific peer review and community/stakeholder consultation of this provisional protocol, we aim to present a refined protocol for institutional review board (IRB) evaluation.
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- 2024
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15. Patient characteristics associated with frequent telehealth utilization in 2022: Evaluation of a national virtual integrated medical and behavioral health practice within the United States
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Jaclyn Marshall, Fredric Blavin, Claire O’Brien, Ami Parekh, and Laura Barrie Smith
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Telemedicine ,Virtual medicine ,Telehealth ,Mental health ,Primary care ,Adult ,Medicine - Abstract
Objectives: As permanent telehealth policies are considered in the United States (U.S.), it is important to understand who uses telehealth most often following the pandemic. We described patients who used a national virtual care practice frequently, identified how they differed from patients who used it less often, and characterized the types of care frequent telehealth patients utilized. Methods: We used video visit data for commercially-insured patients, aged 18+, from a national virtual integrated medical and behavioral health practice in 2022 in the U.S. Patients were categorized into three groups: one visit (’minimal use’), two to four visits (’some use’), and five or more visits (’frequent use’). We compared patient and geographic characteristics between the three groups and estimated an ordinary least squares linear regression to identify predictors of ‘frequent’ use relative to ‘minimal’ or ‘some’ use. Results: The probability of being a frequent user declined with age (−0.4 percentage points (p.p.) per year; 95 % CI, −0.4 – −0.3), was higher for females (5.4 p.p.; 95 % CI, 4.1 – 6.7) and patients with greater clinical complexity (7.9 p.p. for highest relative to lowest quartile risk score; 95 % CI, 5.9 – 10.0), and lower for patients in the Northeast (−9.2 p.p.; 95 % CI, −15.5 – −2.9) or West (−3.2 p.p.; 95 % CI, −5.7 – −0.7) regions relative to the Southern region of the U.S. The five most common diagnoses were mental health conditions. Conclusions: Our results highlight the need for comprehensive telehealth policy that enables access, particularly for patients who rely on it as their primary source of care.
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- 2024
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16. Continuing challenges of elephant captivity: the captive environment, health issues, and welfare implications
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Catherine Doyle, Heather Rally, Lester O’Brien, Mackenzie Tennison, Lori Marino, and Bob Jacobs
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Captivity ,Welfare ,Elephant ,Ethics ,Zoo ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
Although the well-being of elephants in captivity is of paramount importance, the confinement of these long-lived, highly intelligent, and socially complex animals continues to present significant challenges. Here, we provide an overview of the current state of elephant confinement (primarily in the West) by examining captive facilities, improvements, and continuing problems, and the clinical/behavioral/neural issues that remain. Specifically, we examine quantitative and qualitative aspects of the enclosed space, sociocognitive factors, dietary differences, and health/welfare concerns (e.g., stereotypies, physical health, nutrition, reproduction, life expectancy). The challenges of the captive environment become especially salient when juxtaposed next to the complex, multifaceted characteristics of the elephant’s natural environment. Despite the best efforts of some facilities to improve the captive environment, serious welfare challenges remain. Such confinement issues thus raise important welfare and ethical concerns with regards to captive elephant well-being.
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- 2024
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17. Atrial fibrillation after cardiac surgery: identifying candidate predictors through a Delphi process
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Gregory Y H Lip, Oliver C Redfern, Peter J Watkinson, David A Clifton, Jonathan Bedford, Jochen D Muehlschlegel, Gary Stephen Collins, Kara G Fields, and Benjamin O’Brien
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Medicine - Abstract
Objectives This study was undertaken to identify potential predictors of atrial fibrillation after cardiac surgery (AFACS) through a modified Delphi process and expert consensus. These will supplement predictors identified through a systematic review and cohort study to inform the development of two AFACS prediction models as part of the PARADISE project (NCT05255224). Atrial fibrillation is a common complication after cardiac surgery. It is associated with worse postoperative outcomes. Reliable prediction of AFACS would enable risk stratification and targeted prevention. Systematic identification of candidate predictors is important to improve validity of AFACS prediction tools.Design This study is a Delphi consensus exercise.Setting This study was undertaken through remote participation.Participants The participants are an international multidisciplinary panel of experts selected through national research networks.Interventions This is a two-stage consensus exercise consisting of generating a long list of variables, followed by refinement by voting and retaining variables selected by at least 40% of panel members.Results The panel comprised 15 experts who participated in both stages, comprising cardiac intensive care physicians (n=3), cardiac anaesthetists (n=2), cardiac surgeons (n=1), cardiologists (n=4), cardiac pharmacists (n=1), critical care nurses (n=1), cardiac nurses (n=1) and patient representatives (n=2). Our Delphi process highlighted candidate AFACS predictors, including both patient factors and those related to the surgical intervention. We generated a final list of 72 candidate predictors. The final list comprised 3 demographic, 29 comorbidity, 4 vital sign, 13 intraoperative, 10 postoperative investigation and 13 postoperative intervention predictors.Conclusions A Delphi consensus exercise has the potential to highlight predictors beyond the scope of existing literature. This method proved effective in identifying a range of candidate AFACS predictors. Our findings will inform the development of future AFACS prediction tools as part of the larger PARADISE project.Trial registration number NCT05255224.
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- 2024
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18. Exercise referral schemes increase Patients’ cardiorespiratory Endurance: A systematic review and Meta-Analysis
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Sophie J.L. Inkpen, Haoxuan Liu, Sophie Rayner, Ellie Shields, Judith Godin, and Myles W. O’Brien
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Cardiorespiratory fitness ,Exercise prescription ,Primary health care ,physical activity counselling ,Exercise is Medicine ,Medicine - Abstract
Introduction: The efficacy of exercise referral schemes (ERS) involving primary care providers to an exercise specialist on patients’ physical activity is uncertain and primarily based on self-report outcomes. Cardiorespiratory endurance carries clinically relevant information and is an objective outcome measure that has been used to evaluate ERS, but this literature has not been amalgamated. We determined the effectiveness of ERS involving qualified exercise professionals (QEPs) on patients’ cardiorespiratory endurance. Methods: A systematic review with between-group and within-group meta-analyses was performed to examine the effects of ERS on cardiorespiratory endurance. We searched Scopus, EMBASE, MEDLINE, CINAHL, and Academic Search Premier databases from their inception to February 2023 to find ERS interventions (randomized/non-randomized, controlled/non-controlled). To be included, studies required an adult patient referral from a primary care provider to a QEP. Results: Twenty-nine articles comprising 6326 (3684 females) unique patients were included. Patients were primarily older (62 ± 9 years; range: 48–82) and overweight (body mass index: 28.9 ± 7.5 kg/m2; range: 22.5–37.1). Improvements in patients’ cardiorespiratory endurance were observed in 20 of the 29 studies. Among controlled studies (n = 14), the meta-analysis exhibited a favorable effect on cardiorespiratory endurance between the intervention and the comparator groups (Hedge’s g: 0.31, 95 % CI: 0.09 to 0.52). The ERS interventions also improved cardiorespiratory endurance when comparing pre- and post-intervention effects (all studies, Cohen’s d: 0.57, 95 % CI: 0.45 to 0.69). Conclusion: ERS that incorporate a QEP lead to improvements in patients’ cardiorespiratory endurance, providing support for the creation of these programs to help patients lead healthier lifestyles.
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- 2024
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19. Instilling Foundation Behaviors of Professional Practice in Undergraduate Athletic Training Students: A Grounded Theory Study
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O'Brien, Christopher W.
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The purpose of this grounded theory study was to investigate the implementation of the "Foundational Behaviors of Professional Practice" in undergraduate athletic training education program curriculums accredited by the Commission on Accreditation of Athletic Training Education [CAATE]. Specifically, this study examined the educational and assessment practices currently being used in CAATE-approved programs and the confidence participants have in the effectiveness of those practices. The study involved 91 participants who had an average of 9.63 years experience in the role of undergraduate athletic training education program directors. All ten National Athletic Trainers' Association districts were represented. In the tradition of Strauss and Corbin (2008), the grounded theory embedded in the study to emerge was that the instillation of the behaviors found in the "Foundational Behaviors of Professional Practice" will primarily occur during the clinical experience in an implicit way via student mentoring through modeling by the approved clinical instructors (ACIs). The results of this study also found that there is high variability in confidence levels of ACIs' abilities to fulfill this role effectively. Implications of the emergent theory suggests more attention needs to be given to selection and training of ACIs and to assessment of student mentoring through modeling by the ACI to assure high confidence that the common values of the athletic training profession are being instilled in students of undergraduate athletic training education programs. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]
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- 2011
20. Long-term impact of COVID-19 hospitalisation among individuals with pre-existing airway diseases in the UK: a multicentre, longitudinal cohort study – PHOSP-COVID
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Omer Elneima, John R. Hurst, Carlos Echevarria, Jennifer K. Quint, Samantha Walker, Salman Siddiqui, Petr Novotny, Paul E. Pfeffer, Jeremy S. Brown, Manu Shankar-Hari, Hamish J.C. McAuley, Olivia C. Leavy, Aarti Shikotra, Amisha Singapuri, Marco Sereno, Matthew Richardson, Ruth M. Saunders, Victoria C. Harris, Linzy Houchen-Wolloff, Neil J. Greening, Ewen M. Harrison, Annemarie B. Docherty, Nazir I. Lone, James D. Chalmers, Ling-Pei Ho, Alex Horsley, Michael Marks, Krisnah Poinasamy, Betty Raman, Rachael A. Evans, Louise V. Wain, Aziz Sheikh, Chris E. Brightling, Anthony De Soyza, Liam G. Heaney, J.K. Baillie, N.I. Lone, E. Pairo-Castineira, N. Avramidis, K. Rawlik, S Jones, L. Armstrong, B. Hairsine, H. Henson, C. Kurasz, A. Shaw, L. Shenton, H. Dobson, A. Dell, S. Fairbairn, N. Hawkings, J. Haworth, M. Hoare, V. Lewis, A. Lucey, G. Mallison, H. Nassa, C. Pennington, A. Price, C. Price, A. Storrie, G. Willis, S. Young, K. Poinasamy, S. Walker, I. Jarrold, A. Sanderson, K. Chong-James, C. David, W.Y. James, P. Pfeffer, O. Zongo, A. Martineau, C. Manisty, C. Armour, V. Brown, J. Busby, B. Connolly, T. Craig, S. Drain, L.G. Heaney, B. King, N. Magee, E. Major, D. McAulay, L. McGarvey, J. McGinness, T. Peto, R. Stone, A. Bolger, F. Davies, A. Haggar, J. Lewis, A. Lloyd, R. Manley, E. McIvor, D. Menzies, K. Roberts, W. Saxon, D. Southern, C. Subbe, V. Whitehead, A. Bularga, N.L. Mills, J. Dawson, H. El-Taweel, L. Robinson, L. Brear, K. Regan, D. Saralaya, K. Storton, S. Amoils, A. Bermperi, I. Cruz, K. Dempsey, A. Elmer, J. Fuld, H. Jones, S. Jose, S. Marciniak, M. Parkes, C. Ribeiro, J. Taylor, M. Toshner, L. Watson, J. Worsley, L. Broad, T. Evans, M. Haynes, L. Jones, L. Knibbs, A. McQueen, C. Oliver, K. Paradowski, R. Sabit, J. Williams, I. Jones, L. Milligan, E. Harris, C. Sampson, E. Davies, C. Evenden, A. Hancock, K. Hancock, C. Lynch, M. Rees, L. Roche, N. Stroud, T. Thomas-Woods, S. Heller, T. Chalder, K. Shah, E. Robertson, B. Young, M. Babores, M. Holland, N. Keenan, S. Shashaa, H. Wassall, L. Austin, E. Beranova, T. Cosier, J. Deery, T. Hazelton, H. Ramos, R. Solly, S. Turney, H. Weston, M. Ralser, L. Pearce, S. Pugmire, W. Stoker, A. Wilson, W. McCormick, E. Fraile, J. Ugoji, L. Aguilar Jimenez, G. Arbane, S. Betts, K. Bisnauthsing, A. Dewar, N. Hart, G. Kaltsakas, H. Kerslake, M.M. Magtoto, P. Marino, L.M. Martinez, M. Ostermann, J. Rossdale, T.S. Solano, M. Alvarez Corral, A. Arias, E. Bevan, D. Griffin, J. Martin, J. Owen, S. Payne, A. Prabhu, A. Reed, W. Storrar, N. Williams, C. Wrey Brown, T. Burdett, J. Featherstone, C. Lawson, A. Layton, C. Mills, L. Stephenson, Y. Ellis, P. Atkin, K. Brindle, M.G. Crooks, K. Drury, N. Easom, R. Flockton, L. Holdsworth, A. Richards, D.L. Sykes, S. Thackray-Nocera, C. Wright, S. Coetzee, K. Davies, R. Hughes, R. Loosley, H. McGuinness, A. Mohamed, L. O'Brien, Z. Omar, E. Perkins, J. Phipps, G. Ross, A. Taylor, H. Tench, R. Wolf-Roberts, L. Burden, E. Calvelo, B. Card, C. Carr, E.R. Chilvers, D. Copeland, P. Cullinan, P. Daly, L. Evison, T. Fayzan, H. Gordon, S. Haq, R.G. Jenkins, C. King, O. Kon, K. March, M. Mariveles, L. McLeavey, N. Mohamed, S. Moriera, U. Munawar, J. Nunag, U. Nwanguma, L. Orriss-Dib, A. Ross, M. Roy, E. Russell, K. Samuel, J. Schronce, N. Simpson, L. Tarusan, D.C. Thomas, C. Wood, N. Yasmin, D. Altmann, L.S. Howard, D. Johnston, A. Lingford-Hughes, W.D-C. Man, J. Mitchell, P.L. Molyneaux, C. Nicolaou, D.P. O'Regan, L. Price, J. Quint, D. Smith, R.S. Thwaites, J. Valabhji, S. Walsh, C.M. Efstathiou, F. Liew, A. Frankel, L. Lightstone, S. McAdoo, M. Wilkins, M. Willicombe, R. Touyz, A-M. Guerdette, M. Hewitt, R. Reddy, K. Warwick, S. White, A. McMahon, M. Malim, K. Bramham, M. Brown, K. Ismail, T. Nicholson, C. Pariante, C. Sharpe, S. Wessely, J. Whitney, O. Adeyemi, R. Adrego, H. Assefa-Kebede, J. Breeze, S. Byrne, P. Dulawan, A. Hoare, C.J. Jolley, A. Knighton, S. Patale, I. Peralta, N. Powell, A. Ramos, K. Shevket, F. Speranza, A. Te, A. Shah, A. Chiribiri, C. O'Brien, A. Hayday, A. Ashworth, P. Beirne, J. Clarke, C. Coupland, M. Dalton, C. Favager, J. Glossop, J. Greenwood, L. Hall, T. Hardy, A. Humphries, J. Murira, D. Peckham, S. Plein, J. Rangeley, G. Saalmink, A.L. Tan, E. Wade, B. Whittam, N. Window, J. Woods, G. Coakley, L. Turtle, L. Allerton, A.M. Allt, M. Beadsworth, A. Berridge, J. Brown, S. Cooper, A. Cross, S. Defres, S.L. Dobson, J. Earley, N. French, W. Greenhalf, K. Hainey, H.E. Hardwick, J. Hawkes, V. Highett, S. Kaprowska, A.L. Key, L. Lavelle-Langham, N. Lewis-Burke, G. Madzamba, F. Malein, S. Marsh, C. Mears, L. Melling, M.J. Noonan, L. Poll, J. Pratt, E. Richardson, A. Rowe, M.G. Semple, V. Shaw, K.A. Tripp, L.O. Wajero, S.A. Williams-Howard, D.G. Wootton, J. Wyles, S.N. Diwanji, S. Gurram, P. Papineni, S. Quaid, G.F. Tiongson, E. Watson, A. Briggs, M. Marks, C. Hastie, N. Rogers, N. Smith, D. Stensel, L. Bishop, K. McIvor, P. Rivera-Ortega, B. Al-Sheklly, C. Avram, J. Blaikely, M. Buch, N. Choudhury, D. Faluyi, T. Felton, T. Gorsuch, N.A. Hanley, A. Horsley, T. Hussell, Z. Kausar, N. Odell, R. Osbourne, K. Piper Hanley, K. Radhakrishnan, S. Stockdale, T. Kabir, J.T. Scott, P.J.M. Openshaw, I.D. Stewart, D. Burn, A. Ayoub, G. Burns, G. Davies, A. De Soyza, C. Echevarria, H. Fisher, C. Francis, A. Greenhalgh, P. Hogarth, J. Hughes, K. Jiwa, G. Jones, G. MacGowan, D. Price, A. Sayer, J. Simpson, H. Tedd, S. Thomas, S. West, M. Witham, S. Wright, A. Young, M.J. McMahon, P. Neill, D. Anderson, N. Basu, H. Bayes, A. Brown, A. Dougherty, K. Fallon, L. Gilmour, D. Grieve, K. Mangion, A. Morrow, R. Sykes, C. Berry, I.B. McInnes, K. Scott, F. Barrett, A. Donaldson, E.K. Sage, D. Bell, R. Hamil, K. Leitch, L. Macliver, M. Patel, J. Quigley, A. Smith, B. Welsh, G. Choudhury, S. Clohisey, A. Deans, A.B. Docherty, J. Furniss, E.M. Harrison, S. Kelly, A. Sheikh, J.D. Chalmers, D. Connell, C. Deas, A. Elliott, J. George, S. Mohammed, J. Rowland, A.R. Solstice, D. Sutherland, C.J. Tee, J. Bunker, R. Gill, R. Nathu, K. Holmes, H. Adamali, D. Arnold, S. Barratt, A. Dipper, S. Dunn, N. Maskell, A. Morley, L. Morrison, L. Stadon, S. Waterson, H. Welch, B. Jayaraman, T. Light, I. Vogiatzis, P. Almeida, C.E. Bolton, A. Hosseini, L. Matthews, R. Needham, K. Shaw, A.K. Thomas, J. Bonnington, M. Chrystal, C. Dupont, P.L. Greenhaff, A. Gupta, W. Jang, S. Linford, A. Nikolaidis, S. Prosper, A. Burns, N. Kanellakis, V.M. Ferreira, C. Nikolaidou, C. Xie, M. Ainsworth, A. Alamoudi, A. Bloss, P. Carter, M. Cassar, J. Chen, F. Conneh, T. Dong, R.I. Evans, E. Fraser, J.R. Geddes, F. Gleeson, P. Harrison, M. Havinden-Williams, L.P. Ho, P. Jezzard, I. Koychev, P. Kurupati, H. McShane, C. Megson, S. Neubauer, D. Nicoll, G. Ogg, E. Pacpaco, M. Pavlides, Y. Peng, N. Petousi, J. Pimm, N.M. Rahman, B. Raman, M.J. Rowland, K. Saunders, M. Sharpe, N. Talbot, E.M. Tunnicliffe, A. Korszun, S. Kerr, R.E. Barker, D. Cristiano, N. Dormand, P. George, M. Gummadi, S. Kon, K. Liyanage, C.M. Nolan, B. Patel, S. Patel, O. Polgar, P. Shah, S. Singh, J.A. Walsh, M. Gibbons, S. Ahmad, S. Brill, J. Hurst, H. Jarvis, L. Lim, S. Mandal, D. Matila, O. Olaosebikan, C. Singh, C. Laing, H. Baxendale, L. Garner, C. Johnson, J. Mackie, A. Michael, J. Newman, J. Pack, K. Paques, H. Parfrey, J. Parmar, A. Reddy, M. Halling-Brown, P. Dark, N. Diar-Bakerly, D. Evans, E. Hardy, A. Harvey, D. Holgate, S. Knight, N. Mairs, N. Majeed, L. McMorrow, J. Oxton, J. Pendlebury, C. Summersgill, R. Ugwuoke, S. Whittaker, W. Matimba-Mupaya, S. Strong-Sheldrake, P. Chowienczyk, J. Bagshaw, M. Begum, K. Birchall, R. Butcher, H. Carborn, F. Chan, K. Chapman, Y. Cheng, L. Chetham, C. Clark, Z. Coburn, J. Cole, M. Dixon, A. Fairman, J. Finnigan, H. Foot, D. Foote, A. Ford, R. Gregory, K. Harrington, L. Haslam, L. Hesselden, J. Hockridge, A. Holbourn, B. Holroyd-Hind, L. Holt, A. Howell, E. Hurditch, F. Ilyas, C. Jarman, A. Lawrie, J-H. Lee, E. Lee, R. Lenagh, A. Lye, I. Macharia, M. Marshall, A. Mbuyisa, J. McNeill, S. Megson, J. Meiring, L. Milner, S. Misra, H. Newell, T. Newman, C. Norman, L. Nwafor, D. Pattenadk, M. Plowright, J. Porter, P. Ravencroft, C. Roddis, J. Rodger, S.L. Rowland-Jones, P. Saunders, J. Sidebottom, J. Smith, L. Smith, N. Steele, G. Stephens, R. Stimpson, B. Thamu, A.A.R. Thompson, N. Tinker, K. Turner, H. Turton, P. Wade, J. Watson, I. Wilson, A. Zawia, L. Allsop, K. Bennett, P. Buckley, M. Flynn, M. Gill, C. Goodwin, M. Greatorex, H. Gregory, C. Heeley, L. Holloway, M. Holmes, J. Hutchinson, J. Kirk, W. Lovegrove, T.A. Sewell, S. Shelton, D. Sissons, K. Slack, S. Smith, D. Sowter, S. Turner, V. Whitworth, I. Wynter, J. Tomlinson, L. Warburton, S. Painter, S. Palmer, D. Redwood, J. Tilley, C. Vickers, T. Wainwright, G. Breen, M. Hotopf, R. Aul, D. Forton, M. Ali, A. Dunleavy, M. Mencias, N. Msimanga, T. Samakomva, S. Siddique, V. Tavoukjian, J. Teixeira, R. Ahmed, R. Francis, L. Connor, A. Cook, G.A. Davies, T. Rees, F. Thaivalappil, C. Thomas, M. McNarry, K.E. Lewis, M. Coulding, S. Kilroy, J. McCormick, J. McIntosh, V. Turner, J. Vere, A. Butt, H. Savill, S.S. Kon, G. Landers, H. Lota, S. Portukhay, M. Nasseri, A. Daniels, A. Hormis, J. Ingham, L. Zeidan, M. Chablani, L. Osborne, S. Aslani, A. Banerjee, R. Batterham, G. Baxter, R. Bell, A. David, E. Denneny, A.D. Hughes, W. Lilaonitkul, P. Mehta, A. Pakzad, B. Rangelov, B. Williams, J. Willoughby, M. Xu, N. Ahwireng, D. Bang, D. Basire, J.S. Brown, R.C. Chambers, A. Checkley, R. Evans, M. Heightman, T. Hillman, J. Jacob, R. Jastrub, M. Lipman, S. Logan, D. Lomas, M. Merida Morillas, H. Plant, J.C. Porter, K. Roy, E. Wall, T. Treibel, N. Ahmad Haider, C. Atkin, R. Baggott, M. Bates, A. Botkai, A. Casey, B. Cooper, J. Dasgin, C. Dawson, K. Draxlbauer, N. Gautam, J. Hazeldine, T. Hiwot, S. Holden, K. Isaacs, T. Jackson, V. Kamwa, D. Lewis, J.M. Lord, S. Madathil, C. McGhee, K. McGee, A. Neal, A. Newton-Cox, J. Nyaboko, D. Parekh, Z. Peterkin, H. Qureshi, L. Ratcliffe, E. Sapey, J. Short, T. Soulsby, J. Stockley, Z. Suleiman, T. Thompson, M. Ventura, S. Walder, C. Welch, D. Wilson, S. Yasmin, K.P. Yip, N. Chaudhuri, C. Childs, R. Djukanovic, S. Fletcher, M. Harvey, M.G. Jones, E. Marouzet, B. Marshall, R. Samuel, T. Sass, T. Wallis, H. Wheeler, R. Steeds, P. Beckett, C. Dickens, U. Nanda, M. Aljaroof, N. Armstrong, H. Arnold, H. Aung, M. Bakali, M. Bakau, E. Baldry, M. Baldwin, C. Bourne, M. Bourne, C.E. Brightling, N. Brunskill, P. Cairns, L. Carr, A. Charalambou, C. Christie, M.J. Davies, E. Daynes, S. Diver, R. Dowling, S. Edwards, C. Edwardson, O. Elneima, H. Evans, R.A. Evans, J. Finch, S. Finney, S. Glover, N. Goodman, B. Gooptu, N.J. Greening, K. Hadley, P. Haldar, B. Hargadon, V.C. Harris, L. Houchen-Wolloff, W. Ibrahim, L. Ingram, K. Khunti, A. Lea, D. Lee, H.J.C. McAuley, G.P. McCann, P. McCourt, T. McNally, G. Mills, W. Monteiro, M. Pareek, S. Parker, A. Prickett, I.N. Qureshi, A. Rowland, R. Russell, M. Sereno, A. Shikotra, S. Siddiqui, A. Singapuri, S.J. Singh, J. Skeemer, M. Soares, E. Stringer, S. Terry, T. Thornton, M. Tobin, T.J.C. Ward, F. Woodhead, T. Yates, A.J. Yousuf, B. Guillen Guiio, O.C. Leavy, L.V. Wain, M. Broome, P. McArdle, D. Thickett, R. Upthegrove, D. Wilkinson, P. Moss, D. Wraith, J. Evans, E. Bullmore, J.L. Heeney, C. Langenberg, W. Schwaeble, C. Summers, J. Weir McCall, D. Adeloye, D.E. Newby, R. Pius, I. Rudan, M. Shankar-Hari, C.L. Sudlow, M. Thorpe, S. Walmsley, B. Zheng, L. Allan, C. Ballard, A. McGovern, J. Dennis, J. Cavanagh, S. MacDonald, K. O'Donnell, J. Petrie, N. Sattar, M. Spears, E. Guthrie, M. Henderson, R.J. Allen, M. Bingham, T. Brugha, R. Free, D. Jones, L. Gardiner, A.J. Moss, E. Mukaetova-Ladinska, P. Novotny, C. Overton, J.E. Pearl, T. Plekhanova, M. Richardson, N. Samani, J. Sargent, M. Sharma, M. Steiner, C. Taylor, C. Tong, E. Turner, J. Wormleighton, B. Zhao, K. Ntotsis, R.M. Saunders, D. Lozano-Rojas, D. Cuthbertson, G. Kemp, A. McArdle, B. Michael, W. Reynolds, L.G. Spencer, B. Vinson, M. Ashworth, K. Abel, H. Chinoy, B. Deakin, M. Harvie, C.A. Miller, S. Stanel, P. Barran, D. Trivedi, H. McAllister-Williams, S. Paddick, A. Rostron, J.P. Taylor, D. Baguley, C. Coleman, E. Cox, L. Fabbri, S. Francis, I. Hall, E. Hufton, S. Johnson, F. Khan, P. Kitterick, R. Morriss, N. Selby, L. Wright, C. Antoniades, A. Bates, M. Beggs, K. Bhui, K. Breeze, K.M. Channon, D. Clark, X. Fu, M. Husain, X. Li, E. Lukaschuk, C. McCracken, K. McGlynn, R. Menke, K. Motohashi, T.E. Nichols, G. Ogbole, S. Piechnik, I. Propescu, J. Propescu, A.A. Samat, Z.B. Sanders, L. Sigfrid, M. Webster, L. Kingham, P. Klenerman, H. Lamlum, G. Carson, M. Taquet, L. Finnigan, L.C. Saunders, J.M. Wild, P.C. Calder, N. Huneke, G. Simons, D. Baldwin, S. Bain, L. Daines, E. Bright, P. Crisp, R. Dharmagunawardena, M. Stern, L. Bailey, A. Reddington, A. Wight, A. Ashish, J. Cooper, E. Robinson, A. Broadley, L. Barman, C. Brookes, K. Elliott, L. Griffiths, Z. Guy, K. Howard, D. Ionita, H. Redfearn, C. Sarginson, and A. Turnbull
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Medicine - Abstract
Background The long-term outcomes of COVID-19 hospitalisation in individuals with pre-existing airway diseases are unknown. Methods Adult participants hospitalised for confirmed or clinically suspected COVID-19 and discharged between 5 March 2020 and 31 March 2021 were recruited to the Post-hospitalisation COVID-19 (PHOSP-COVID) study. Participants attended research visits at 5 months and 1 year post discharge. Clinical characteristics, perceived recovery, burden of symptoms and health-related quality of life (HRQoL) of individuals with pre-existing airway disease (i.e., asthma, COPD or bronchiectasis) were compared to the non-airways group. Results A total of 615 out of 2697 (22.8%) participants had a history of pre-existing airway diseases (72.0% diagnosed with asthma, 22.9% COPD and 5.1% bronchiectasis). At 1 year, the airways group participants were less likely to feel fully recovered (20.4% versus 33.2%, p
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- 2024
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21. The gut microbiota in persistent post-operative pain following breast cancer surgery
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Khaled Masaud, James M. Collins, Raul Cabrera Rubio, Mark Corrigan, Paul D. Cotter, Niall O’Brien, Ronan Bluett, Clare Keaveney Jimenez, Siobhain M. O’Mahony, and George D. Shorten
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Medicine ,Science - Abstract
Abstract Persistent post-surgical pain (PPSP) is defined as pain which continues after a surgical operation in a significant form for at least three months (and is not related to pre-existing painful conditions). PPSP is a common, under-recognised, and important clinical problem which affects millions of patients worldwide. Preventative measures which are currently available include the selection of a minimally invasive surgical technique and an aggressive multimodal perioperative analgesic regimen. More recently, a role for the gut microbiota in pain modulation has become increasingly apparent. This study aims to investigate any relationship between the gut microbiota and PPSP. A prospective observational study of 68 female adult patients undergoing surgery for management of breast cancer was carried out. Stool samples from 45 of these patients were obtained to analyse the composition of the gut microbiota. Measures of pain and state-trait anxiety were also taken to investigate further dimensions in any relationship between the gut microbiota and PPSP. At 12 weeks postoperatively, 21 patients (51.2%) did not have any pain and 20 patients (48.8%) reported feeling pain that persisted at that time. Analysis of the gut microbiota revealed significantly lower alpha diversity (using three measures) in those patients reporting severe pain at the 60 min post-operative and the 12 weeks post-operative timepoints. A cluster of taxa represented by Bifidobacterium longum, and Faecalibacterium prausnitzii was closely associated with those individuals reporting no pain at 12 weeks postoperatively, while Megamonas hypermegale, Bacteroides pectinophilus, Ruminococcus bromii, and Roseburia hominis clustered relatively closely in the group of patients fulfilling the criteria for persistent post-operative pain. We report for the first time specific associations between the gut microbiota composition and the presence or absence of PPSP. This may provide further insights into mechanisms behind the role of the gut microbiota in the development of PPSP and could inform future treatment strategies.
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- 2024
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22. Delivering clinical tutorials to medical students using the Microsoft HoloLens 2: A mixed-methods evaluation
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Murray Connolly, Gabriella Iohom, Niall O’Brien, James Volz, Aogán O’Muircheartaigh, Paschalitsa Serchan, Agatha Biculescu, Kedar Govind Gadre, Corina Soare, Laura Griseto, and George Shorten
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Mixed Reality ,HoloLens ,Medical Education ,Augmented Reality ,Special aspects of education ,LC8-6691 ,Medicine - Abstract
Abstract Background Mixed reality offers potential educational advantages in the delivery of clinical teaching. Holographic artefacts can be rendered within a shared learning environment using devices such as the Microsoft HoloLens 2. In addition to facilitating remote access to clinical events, mixed reality may provide a means of sharing mental models, including the vertical and horizontal integration of curricular elements at the bedside. This study aimed to evaluate the feasibility of delivering clinical tutorials using the Microsoft HoloLens 2 and the learning efficacy achieved. Methods Following receipt of institutional ethical approval, tutorials on preoperative anaesthetic history taking and upper airway examination were facilitated by a tutor who wore the HoloLens device. The tutor interacted face to face with a patient and two-way audio-visual interaction was facilitated using the HoloLens 2 and Microsoft Teams with groups of students who were located in a separate tutorial room. Holographic functions were employed by the tutor. The tutor completed the System Usability Scale, the tutor, technical facilitator, patients, and students provided quantitative and qualitative feedback, and three students participated in semi-structured feedback interviews. Students completed pre- and post-tutorial, and end-of-year examinations on the tutorial topics. Results Twelve patients and 78 students participated across 12 separate tutorials. Five students did not complete the examinations and were excluded from efficacy calculations. Student feedback contained 90 positive comments, including the technology’s ability to broadcast the tutor’s point-of-vision, and 62 negative comments, where students noted issues with the audio-visual quality, and concerns that the tutorial was not as beneficial as traditional in-person clinical tutorials. The technology and tutorial structure were viewed favourably by the tutor, facilitator and patients. Significant improvement was observed between students’ pre- and post-tutorial MCQ scores (mean 59.2% Vs 84.7%, p
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- 2024
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23. Perceptions of and preparedness for cross-cultural care: a survey of final-year medical students in Ireland
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Lesley O’Brien, Nicola Wassall, Danielle Cadoret, Aleksandra Petrović, Patrick O’Donnell, and Siobhán Neville
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Cross-cultural care ,Cultural competency ,Medical education ,Special aspects of education ,LC8-6691 ,Medicine - Abstract
Abstract Background Migration is increasing globally, and societies are becoming more diverse and multi-ethnic. Medical school curricula should prepare students to provide high-quality care to all individuals in the communities they serve. Previous research from North America and Asia has assessed the effectiveness of medical cultural competency training, and student preparedness for delivery of cross-cultural care. However, student preparedness has not been explored in the European context. The aim of this study was to investigate how prepared final-year medical students in the Republic of Ireland (ROI) feel to provide care to patients from other countries, cultures, and ethnicities. In addition, this study aims to explore students’ experiences and perceptions of cross-cultural care. Methods Final-year medical students attending all six medical schools within the ROI were invited to participate in this study. A modified version of the Harvard Cross-Cultural Care Survey (CCCS) was used to assess their preparedness, skill, training/education, and attitudes. The data were analysed using IBM SPSS Statistics 28.0, and Fisher’s Exact Test was employed to compare differences within self-identified ethnicity groups and gender. Results Whilst most respondents felt prepared to care for patients in general (80.5%), many felt unprepared to care for specific ethnic patient cohorts, including patients from a minority ethnic background (50.7%) and the Irish Traveller Community (46.8%). Only 20.8% of final-year students felt they had received training in cross-cultural care during their time in medical school. Most respondents agreed that they should be assessed specifically on skills in cultural competence whilst in medical school (83.2%). Conclusions A large proportion of final-year medical students surveyed in Ireland feel inadequately prepared to care for ethnically diverse patients. Similarly, they report feeling unskilled in core areas of cross-cultural care, and a majority agree that they should be assessed on aspects of cultural competency. This study explores shortcomings in cultural competency training and confidence amongst Irish medical students. These findings have implications for future research and curricular change, with opportunities for the development of relevant educational initiatives in Irish medical schools.
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- 2024
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24. Association between changes in habitual stepping activity and cognition in older adults
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Myles W. O’Brien, Nick W. Bray, Isadora Quirion, Shirko Ahmadi, Pierre Faivre, Francois Gallant, Caroline Gagnon, Martin Sénéchal, Olivier Dupuy, Mathieu Bélanger, and Said Mekari
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Executive function ,Processing speed ,Average-real variability ,Fitbit intervention ,Personalized health ,Community interventions ,Medicine ,Science - Abstract
Abstract Advancing age is associated with declines in cognitive function. Although physical activity is thought to protect against this decline, it is unclear how a short-term uptake in daily steps or a decline in day-to-day step variability may contribute to cognition among older adults. We tested associations between changes in step counts, day-to-day step variability and executive cognitive functions among older adults taking part in a physical activity intervention. Thirty-seven older adults (33 females; 71.4 ± 6.3 years) completed a 10-week personalized physical activity intervention. Participants wore a Fitbit to measure daily step counts throughout the study. They also completed a computerized Stroop task before and after the intervention. Average step counts and step count variability via average-real-variability (ARV) were determined. Compared to pre-intervention, step counts increased (p
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- 2024
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25. Lessons Learned from Cross-Systems Approach to COVID-19 Pandemic Response in Juvenile Justice System, Colorado, USA
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Ashley M. Tunstall, Shannon C. O’Brien, Deborah M. Monaghan, Alexis Burakoff, and Renée K. Marquardt
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juvenile justice system ,COVID-19 ,respiratory infections ,severe acute respiratory syndrome coronavirus 2 ,SARS-CoV-2 ,SARS ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
The global COVID-19 pandemic illustrates the importance of a close partnership between public health and juvenile justice systems when responding to communicable diseases. Many setting-specific obstacles must be navigated to respond effectively to limit disease transmission and negative health outcomes while maintaining necessary services for youth in confinement facilities. The response requires multidisciplinary expertise and collaboration to address unique considerations. Public health mitigation strategies must balance the risk for disease against the negative effects of restrictions. Key aspects of the COVID-19 response in the juvenile justice system of Colorado, USA, involved establishing robust communication and data reporting infrastructures, building a multidisciplinary response team, adapting existing infection prevention guidelines, and focusing on a whole-person health approach to infection prevention. We examine lessons learned and offer recommendations on pandemic emergency response planning and managing a statewide public health emergency in youth confinement settings that ensure ongoing readiness.
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- 2024
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26. Brain network hypersensitivity underlies pain crises in sickle cell disease
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Pangyu Joo, Minkyung Kim, Brianna Kish, Vidhya Vijayakrishnan Nair, Yunjie Tong, Ziyue Liu, Andrew R. W. O’Brien, Steven E. Harte, Richard E. Harris, UnCheol Lee, and Ying Wang
- Subjects
Medicine ,Science - Abstract
Abstract Sickle cell disease (SCD) is a genetic disorder causing painful and unpredictable Vaso-occlusive crises (VOCs) through blood vessel blockages. In this study, we propose explosive synchronization (ES) as a novel approach to comprehend the hypersensitivity and occurrence of VOCs in the SCD brain network. We hypothesized that the accumulated disruptions in the brain network induced by SCD might lead to strengthened ES and hypersensitivity. We explored ES's relationship with patient reported outcome measures (PROMs) as well as VOCs by analyzing EEG data from 25 SCD patients and 18 matched controls. SCD patients exhibited lower alpha frequency than controls. SCD patients showed correlation between frequency disassortativity (FDA), an ES condition, and three important PROMs. Furthermore, stronger FDA was observed in SCD patients with a higher frequency of VOCs and EEG recording near VOC. We also conducted computational modeling on SCD brain network to study FDA's role in network sensitivity. Our model demonstrated that a stronger FDA could be linked to increased sensitivity and frequency of VOCs. This study establishes connections between SCD pain and the universal network mechanism, ES, offering a strong theoretical foundation. This understanding will aid predicting VOCs and refining pain management for SCD patients.
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- 2024
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27. Recent advances in endothelial colony-forming cells: from the transcriptomic perspective
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Yaqiong Liu, Caomhán J. Lyons, Christine Ayu, and Timothy O’Brien
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Endothelial colony forming cells ,Transcriptome analysis ,Cell dysfunction ,Heterogeneity ,Medicine - Abstract
Abstract Endothelial colony-forming cells (ECFCs) are progenitors of endothelial cells with significant proliferative and angiogenic ability. ECFCs are a promising treatment option for various diseases, such as ischemic heart disease and peripheral artery disease. However, some barriers hinder the clinical application of ECFC therapeutics. One of the current obstacles is that ECFCs are dysfunctional due to the underlying disease states. ECFCs exhibit dysfunctional phenotypes in pathologic states, which include but are not limited to the following: premature neonates and pregnancy-related diseases, diabetes mellitus, cancers, haematological system diseases, hypoxia, pulmonary arterial hypertension, coronary artery diseases, and other vascular diseases. Besides, ECFCs are heterogeneous among donors, tissue sources, and within cell subpopulations. Therefore, it is important to elucidate the underlying mechanisms of ECFC dysfunction and characterize their heterogeneity to enable clinical application. In this review, we summarize the current and potential application of transcriptomic analysis in the field of ECFC biology. Transcriptomic analysis is a powerful tool for exploring the key molecules and pathways involved in health and disease and can be used to characterize ECFC heterogeneity.
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- 2024
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28. A human model of Buruli ulcer: Provisional protocol for a Mycobacterium ulcerans controlled human infection study. [version 1; peer review: 1 approved, 2 approved with reservations]
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Stephen Muhi, Daniel P. O'Brien, Julia L. Marshall, Gayle Ross, Paul D.R. Johnson, Laura K. Mackay, Anand Ramakrishnan, James S. McCarthy, Marcel Doerflinger, Euzebiusz Jamrozik, Timothy P. Stinear, and Joshua Osowicki
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Buruli ulcer ,Bairnsdale ulcer ,Mycobacterium ulcerans ,M. ulcerans ,controlled human infection model ,eng ,Medicine ,Science - Abstract
Critical knowledge gaps have impeded progress towards reducing the global burden of disease due to Mycobacterium ulcerans, the cause of the neglected tropical disease Buruli ulcer (BU). Development of a controlled human infection model of BU has been proposed as an experimental platform to explore host-pathogen interactions and evaluate tools for prevention, diagnosis, and treatment. We have previously introduced the use case for a new human model and identified M. ulcerans JKD8049 as a suitable challenge strain. Here, we present a provisional protocol for an initial study, for transparent peer review during the earliest stages of protocol development. Following simultaneous scientific peer review and community/stakeholder consultation of this provisional protocol, we aim to present a refined protocol for institutional review board (IRB) evaluation.
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- 2024
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29. Intrathecal baclofen for neurofibromatosis related spinal cord injury with spasticity – a case report
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Carl O'Brien, Jacqui Stow, Michael O'Connor, Jacinta Morgan, Paul Murphy, Darren Roddy, and Kirk Levins
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neurofibromatosis 1 ,spinal cord injury ,spasticity ,intrathecal baclofen ,Medicine - Abstract
This case presents a 35-year-old male with spinal predominant neurofibromatosis-1 who developed an incomplete spinal cord injury (C3 Asia C) which did not improve despite urgent decompressive surgery for multiple cervical neurofibromas. This report outlines a novel indication for intrathecal baclofen. The patient suffered from lower limb weakness with severe spasticity and required assistance of at least two for all activities. The aim of rehabilitation was to improve overall tone while focusing on independence, mobility and quality of life. After a successful trial of intrathecal baclofen, he underwent implantation of an intrathecal baclofen pump. The dose was gradually increased while he received a progressive programme of stretching and functional rehabilitation therapy. After 6 weeks, his MAS had improved to 1–2/4 and he had progressed to independent transfers, independence for most activities of daily living and was able to discharge to his family home with minimal support.
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- 2024
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30. Animations to communicate public health prevention messages: a realist review protocol
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Till Bärnighausen, Gregory Maniatopoulos, Nicola O'Brien, Linda Errington, Kathleen McCorry, Ellie Land, Michael Craig, and Santosh Vijaykumar
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Medicine - Abstract
Introduction With digital and social media advances, animated health communications (health animations) are highly prevalent globally, yet the evidence base underpinning them remains unclear and limited. While individual studies have attempted to explore the effectiveness, acceptability and usability of specific features of health animations, there is substantial heterogeneity in study design, comparators and the animation design and content. Consequently, there is a need to synthesise evidence of health animations using an approach that recognises this contextual complexity, which may affect their impact.Methods and analysis This project aims to understand why, how, for whom, to what extent and in which contexts health animations are expected to promote preventive health behaviours. We will conduct a realist review following Pawson’s five iterative stages to (1) define the review scope and locate existing theories; (2) search for evidence; (3) select and appraise evidence; (4) extract data and (5) synthesise data and refine theory. Engagement with stakeholders involved in developing, testing, implementing or commissioning health communications, including animations, will allow the initial programme theory to be tested and refined. The findings will be reported in accordance with Realist and Meta-narrative Evidence Syntheses: Evolving Standards.Ethics and dissemination Ethical approval for the public stakeholder work was provided by the Northumbria University Research Ethics Committee. We will disseminate the findings widely through outputs tailored to target specific professional, public and patient audiences. Dissemination will occur through stakeholder engagement as part of the research, a peer-reviewed publication and conference presentations.PROSPERO registration number CRD42023447127.
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- 2024
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31. The genome sequence of the smooth giant clam, Tridacna derasa Röding, 1798 [version 1; peer review: 2 approved]
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Jose Victor Lopez, Eerik Aunin, Victoria McKenna, Isabelle Ailish Clayton-Lucey, Ruiqi Li, Jingchun Li, Elizabeth Sinclair, Graeme Oatley, Camilla Santos, Noah Gettle, Haoyu Niu, Michael Paulini, and Rebecca O’Brien
- Subjects
Tridacna derasa ,smooth giant clam ,genome sequence ,chromosomal ,Cardiida ,Tridacnidae ,eng ,Medicine ,Science - Abstract
We present a genome assembly from an individual Tridacna derasa (the smooth giant clam; Mollusca; Bivalvia;Cardiida; Cardiidae). The genome sequence is 1,060.2 megabases in span. Most of the assembly is scaffolded into 18 chromosomal pseudomolecules. The mitochondrial genome has also been assembled and is 24.95 kilobases in length. Gene annotation of this assembly on Ensembl identified 19,638 protein coding genes.
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- 2024
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32. The genome sequence of the European harvest mouse, Micromys minutus (Pallas, 1771) [version 1; peer review: 2 approved]
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Michelle F. O'Brien and Rosa Lopez Colom
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Micromys minutus ,European harvest mouse ,genome sequence ,chromosomal ,Rodentia ,eng ,Medicine ,Science - Abstract
We present a genome assembly from an individual female Micromys minutus (the European harvest mouse; Chordata; Mammalia; Rodentia; Muridae). The genome sequence spans 2,651.80 megabases. Most of the assembly is scaffolded into 34 chromosomal pseudomolecules, including the X sex chromosome. The mitochondrial genome has also been assembled and is 16.24 kilobases in length.
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- 2024
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33. The genome sequence of the heart cockle, Fragum sueziense (Issel, 1869) [version 1; peer review: 2 approved]
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Jose Victor Lopez, Eerik Aunin, Victoria McKenna, Sarah Lemer, Isabelle Ailish Clayton-Lucey, Ruiqi Li, Jingchun Li, Elizabeth Sinclair, Graeme Oatley, Camilla Santos, Noah Gettle, Haoyu Niu, Michael Paulini, and Rebecca O’Brien
- Subjects
Fragum sueziense ,heart cockle ,genome sequence ,chromosomal ,Cardiida ,Fraginae ,eng ,Medicine ,Science - Abstract
We present a genome assembly from an individual Fragum sueziense (the heart cockle; Mollusca; Bivalvia; Cardiida; Cardiidae). The genome sequence is 1,206.1 megabases in span. Most of the assembly is scaffolded into 19 chromosomal pseudomolecules. The mitochondrial genome has also been assembled and is 92.77 kilobases in length. Gene annotation of this assembly on Ensembl identified 70,309 protein-coding genes.
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- 2024
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34. Protect peripheral intravenous catheters: a study protocol for a randomised controlled trial of a novel antimicrobial dressing for peripheral intravenous catheters (ProP trial)
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Claire M Rickard, Jérémy Guenezan, Bertrand Drugeon, Sabrina Seguin, Olivier Mimoz, Amanda Corley, Joshua Byrnes, Jessica Schults, Nicole M Marsh, Catherine O'Brien, Syeda Farah Zahir, Tricia M Kleidon, Amanda Ullman, Daner Ball, Raphael Couvreur, Kate L McCarthy, and Guillaume Batiot
- Subjects
Medicine - Abstract
Introduction Peripheral intravenous catheters (PIVCs) are the most commonly used vascular access device in hospitalised patients. Yet PIVCs may be complicated by local or systemic infections leading to increased healthcare costs. Chlorhexidine gluconate (CHG)-impregnated dressings may help reduce PIVC-related infectious complications but have not yet been evaluated. We hypothesise an impregnated CHG transparent dressing, in comparison to standard polyurethane dressing, will be safe, effective and cost-effective in protecting against PIVC-related infectious complications and phlebitis.Methods and analysis The ProP trial is a multicentre, superiority, randomised clinical and cost-effectiveness trial with internal pilot, conducted across three centres in Australia and France. Patients (adults and children aged ≥6 years) requiring one PIVC for ≥48 hours are eligible. We will exclude patients with emergent PIVCs, known CHG allergy, skin injury at site of insertion or previous trial enrolment. Patients will be randomised to 3M Tegaderm Antimicrobial IV Advanced Securement dressing or standard care group. For the internal pilot, 300 patients will be enrolled to test protocol feasibility (eligibility, recruitment, retention, protocol fidelity, missing data and satisfaction of participants and staff), primary endpoint for internal pilot, assessed by independent data safety monitoring committee. Clinical outcomes will not be reviewed. Following feasibility assessment, the remaining 2624 (1312 per trial arm) patients will be enrolled following the same methods. The primary endpoint is a composite of catheter-related infectious complications and phlebitis. Recruitment began on 3 May 2023.Ethics and dissemination The protocol was approved by Ouest I ethic committee in France and by The Queensland Children’s Hospital Human Research Ethics Committee in Australia. The findings will be disseminated through presentation at scientific conferences and publication in peer-reviewed journals.Trial registration number NCT05741866.
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- 2024
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35. Leishmaniases in Ethiopia: a scoping review protocol to determine the scope of research and remaining gaps
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Ermias Diro, Katherine O'Brien, Mezgebu Silamsaw Asres, Richard Wamai, Hugh Shirley, Grace Grifferty, Eleni Ayele, and Philip Espinola Coombs
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Medicine - Abstract
Introduction The leishmaniases are among the group of neglected tropical diseases that cause significant morbidity and mortality each year. Currently, the East Africa region has the highest visceral leishmaniasis burden in the world. Ethiopia is one of the East African countries that reports both visceral and cutaneous forms of the disease. As part of the Nairobi Declaration, Ethiopia showed commitment to the elimination of visceral leishmaniasis by 2030. In this endeavour, it is important to understand the scope of research conducted on leishmaniases in the country and identify where the research gaps exist. Determining the research landscape is vital in the plan towards leishmaniases control and elimination. It will help to reference conducted research, determine if systematic reviews are warranted and help prioritise future research directions.Methods and analysis This protocol was developed with reference to the JBI Scoping Review Methodology Group’s guidance on conducting scoping reviews and the PRISMA-ScR reporting guidelines for scoping reviews. The following databases will be searched: PubMed, Embase via Embase.com, Web of Science Core Collection, Cochrane CENTRAL, Global Index Medicus, ClinicalTrials.gov, the Pan African Clinical Trials Registry and PROSPERO. Locally published literature that may not be indexed in the above-mentioned systems will be identified through team members familiar with the setting. Each record will be dually and blindly reviewed in an abstract-title screen and full-text screen using inclusion–exclusion criteria. Included articles must contain an in-depth discussion of leishmaniasis in Ethiopia. Data extracted will consist of study themes, study types, and categories and subcategories each defined in the developed codebook, in addition to type of leishmania, year of publication, funding source and the number of citations. Results will be reported with summary statistics.Ethics and dissemination Individual consenting and ethical approvals are not applicable. We plan to disseminate our findings to the appropriate stakeholders.
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- 2024
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36. The genome sequence of the European pine marten, Martes martes (Linnaeus, 1758) [version 1; peer review: 2 approved]
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David O'Brien and Inez Januszczak
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Martes martes ,European pine marten ,genome sequence ,chromosomal ,Carnivora ,eng ,Medicine ,Science - Abstract
We present a genome assembly from an individual male Martes martes (the European pine marten; Chordata; Mammalia; Carnivora; Mustelidae). The genome sequence is 2,484.6 megabases in span. Most of the assembly is scaffolded into 20 chromosomal pseudomolecules, including the X and Y sex chromosomes. The mitochondrial genome has also been assembled and is 16.57 kilobases in length.
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- 2024
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37. Validation of the Seizure-Related Impact Assessment Scale (SERIAS): a study protocol
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Emma Foster, Patrick Kwan, Terence J O'Brien, John-Paul Nicolo, Charles Malpas, Genevieve Rayner, Toby Winton-Brown, Alison Conquest, Chris Ewart, and Jacqueline A French
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Medicine - Abstract
Introduction This study aims to validate the Seizure-Related Impact Assessment Scale (SERIAS). This novel patient-reported outcome measure (PROM) compares the ‘trade-off’ between seizures and treatment-related adverse effects, and measures epilepsy disability qualitatively and quantitively. It fills an important gap in PROMs for epilepsy clinical trials and practice.Methods and analysis Adults with epileptologist-confirmed epilepsy from two Australian Epilepsy Centres are being recruited. People with functional seizures, or who are unable to self-complete English-language validated instruments are excluded. Participants providing informed consent are invited to complete questionnaires at baseline, 3 and 6 months later. SERIAS includes five questions that ask about the number of days per month that seizures or treatment-related adverse effects partially or fully impact work/home/school and family/social/non-work activities, as well as a visual analogue scale regarding epilepsy-related disability. SERIAS is completed alongside seven internationally validated instruments measuring treatment-related adverse effects, mood disorders and quality of life. Target recruitment is n=100, ensuring>50 people complete all questionnaires at all timepoints. Comprehensive psychometric analysis will be performed. Convergent validity will be investigated using bivariate correlations with relevant measures. Reliability will be investigated using Cronbach’s alpha, McDonald’s omega and test–retest correlation coefficients. SERIAS will be a novel PROM for epilepsy clinical trials and practice.Ethics and dissemination Multisite ethics approval was granted by the Alfred Health Ethics Committee (HREC 17/23). Results of this study will be disseminated through publication in peer-reviewed journals and presentations at scientific conferences.Trial registration number ACTRN12623000599673.
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- 2024
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38. Clinical Simulation in the Regulation of Software as a Medical Device: An eDelphi Study
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Fiona O'Driscoll, Niki O'Brien, Chaohui Guo, Matthew Prime, Ara Darzi, and Saira Ghafur
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Medicine - Abstract
BackgroundAccelerated digitalization in the health sector requires the development of appropriate evaluation methods to ensure that digital health technologies (DHTs) are safe and effective. Software as a medical device (SaMD) is a commonly used DHT by clinicians to provide care to patients. Traditional research methods for evaluating health care products, such as randomized clinical trials, may not be suitable for DHTs, such as SaMD. However, evidence to show their safety and efficacy is needed by regulators before they can be used in practice. Clinical simulation can be used by researchers to test SaMD in an agile and low-cost way; yet, there is limited research on criteria to assess the robustness of simulations and, subsequently, their relevance for a regulatory decision. ObjectiveThe objective of this study was to gain consensus on the criteria that should be used to assess clinical simulation from a regulatory perspective when it is used to generate evidence for SaMD. MethodsAn eDelphi study approach was chosen to develop a set of criteria to assess clinical simulation when used to evaluate SaMD. Participants were recruited through purposive and snowball sampling based on their experience and knowledge in relevant sectors. They were guided through an initial scoping questionnaire with key themes identified from the literature to obtain a comprehensive list of criteria. Participants voted upon these criteria in 2 Delphi rounds, with criteria being excluded if consensus was not met. Participants were invited to add qualitative comments during rounds and qualitative analysis was performed on the comments gathered during the first round. Consensus was predefined by 2 criteria: if 60% “important” or “very important.” ResultsIn total, 33 international experts in the digital health field, including academics, regulators, policy makers, and industry representatives, completed both Delphi rounds, and 43 criteria gained consensus from the participants. The research team grouped these criteria into 7 domains—background and context, overall study design, study population, delivery of the simulation, fidelity, software and artificial intelligence, and study analysis. These 7 domains were formulated into the simulation for regulation of SaMD framework. There were key areas of concern identified by participants regarding the framework criteria, such as the importance of how simulation fidelity is achieved and reported and the avoidance of bias throughout all stages. ConclusionsThis study proposes the simulation for regulation of SaMD framework, developed through an eDelphi consensus process, to evaluate clinical simulation when used to assess SaMD. Future research should prioritize the development of safe and effective SaMD, while implementing and refining the framework criteria to adapt to new challenges.
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- 2024
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39. Use of hare bone for the manufacture of a Clovis bead
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Todd A. Surovell, McKenna L. Litynski, Sarah A. Allaun, Michael Buckley, Todd A. Schoborg, Jack A. Govaerts, Matthew J. O’Brien, Spencer R. Pelton, Paul H. Sanders, Madeline E. Mackie, and Robert L. Kelly
- Subjects
Medicine ,Science - Abstract
Abstract A tubular bone bead dating to ~ 12,940 BP was recovered from a hearth-centered activity area at the La Prele Mammoth site in Converse County, Wyoming, USA. This is the oldest known bead from the Western Hemisphere. To determine the taxonomic origin of the bead, we extracted collagen for zooarchaeology by mass spectrometry (ZooMS). We also used micro-CT scanning for morphological analysis to determine likely skeletal elements used for its production. We conclude that the bead was made from a metapodial or proximal phalanx of a hare (Lepus sp.). This find represents the first secure evidence for the use of hares during the Clovis period. While the use of hare bone for the manufacture of beads was a common practice in western North America during the Holocene, its origins can now be traced back to at least the terminal Pleistocene.
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- 2024
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40. A clinically relevant computed tomography (CT) radiomics strategy for intracranial rodent brain tumour monitoring
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Kate Connor, Emer Conroy, Kieron White, Liam P. Shiels, Simon Keek, Abdalla Ibrahim, William M. Gallagher, Kieron J. Sweeney, James Clerkin, David O’Brien, Jane B. Cryan, Philip J. O’Halloran, Josephine Heffernan, Francesca Brett, Philippe Lambin, Henry C. Woodruff, and Annette T. Byrne
- Subjects
Medicine ,Science - Abstract
Abstract Here, we establish a CT-radiomics based method for application in invasive, orthotopic rodent brain tumour models. Twenty four NOD/SCID mice were implanted with U87R-Luc2 GBM cells and longitudinally imaged via contrast enhanced (CE-CT) imaging. Pyradiomics was employed to extract CT-radiomic features from the tumour-implanted hemisphere and non-tumour-implanted hemisphere of acquired CT-scans. Inter-correlated features were removed (Spearman correlation > 0.85) and remaining features underwent predictive analysis (recursive feature elimination or Boruta algorithm). An area under the curve of the receiver operating characteristic curve was implemented to evaluate radiomic features for their capacity to predict defined outcomes. Firstly, we identified a subset of radiomic features which distinguish the tumour-implanted hemisphere and non- tumour-implanted hemisphere (i.e, tumour presence from normal tissue). Secondly, we successfully translate preclinical CT-radiomic pipelines to GBM patient CT scans (n = 10), identifying similar trends in tumour-specific feature intensities (E.g. ‘glszm Zone Entropy’), thereby suggesting a mouse-to-human species conservation (a conservation of radiomic features across species). Thirdly, comparison of features across timepoints identify features which support preclinical tumour detection earlier than is possible by visual assessment of CT scans. This work establishes robust, preclinical CT-radiomic pipelines and describes the application of CE-CT for in-depth orthotopic brain tumour monitoring. Overall we provide evidence for the role of pre-clinical ‘discovery’ radiomics in the neuro-oncology space.
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- 2024
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41. Maternal exposure to polyethylene micro- and nanoplastics impairs umbilical blood flow but not fetal growth in pregnant mice
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Jenna Hanrahan, Katherine L. Steeves, Drew P. Locke, Thomas M. O’Brien, Alexandre S. Maekawa, Roshanak Amiri, Christopher K. Macgowan, Ahmet A. Baschat, John C. Kingdom, André J. Simpson, Myrna J. Simpson, John G. Sled, Karl J. Jobst, and Lindsay S. Cahill
- Subjects
Medicine ,Science - Abstract
Abstract While microplastics have been recently detected in human blood and the placenta, their impact on human health is not well understood. Using a mouse model of environmental exposure during pregnancy, our group has previously reported that exposure to polystyrene micro- and nanoplastics throughout gestation results in fetal growth restriction. While polystyrene is environmentally relevant, polyethylene is the most widely produced plastic and amongst the most commonly detected microplastic in drinking water and human blood. In this study, we investigated the effect of maternal exposure to polyethylene micro- and nanoplastics on fetal growth and placental function. Healthy, pregnant CD-1 dams were divided into three groups: 106 ng/L of 740–4990 nm polyethylene with surfactant in drinking water (n = 12), surfactant alone in drinking water (n = 12) or regular filtered drinking water (n = 11). At embryonic day 17.5, high-frequency ultrasound was used to investigate the placental and fetal hemodynamic responses following exposure. While maternal exposure to polyethylene did not impact fetal growth, there was a significant effect on placental function with a 43% increase in umbilical artery blood flow in the polyethylene group compared to controls (p
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- 2024
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42. Comprehensive allostatic load risk index is associated with increased frontal and left parietal white matter hyperintensities in mid-life cognitively healthy adults
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Ingrid Buller-Peralta, Sarah Gregory, Audrey Low, Maria-Eleni Dounavi, Katie Bridgeman, Georgios Ntailianis, Brian Lawlor, Lorina Naci, Ivan Koychev, Paresh Malhotra, John T. O’Brien, Craig W. Ritchie, and Graciela Muniz-Terrera
- Subjects
Medicine ,Science - Abstract
Abstract To date, there is a considerable heterogeneity of methods to score Allostatic Load (AL). Here we propose a comprehensive algorithm (ALCS) that integrates commonly used approaches to generate AL risk categories and assess associations to brain structure deterioration. In a cohort of cognitively normal mid-life adults (n = 620, age 51.3 ± 5.48 years), we developed a comprehensive composite for AL scoring incorporating gender and age differences, high quartile approach, clinical reference values, and current medications, to then generate AL risk categories. Compared to the empirical approach (ALES), ALCS showed better model fit criteria and a strong association with age and sex. ALSC categories were regressed against brain and white matter hyperintensity (WMH) volumes. Higher AL risk categories were associated with increased total, periventricular, frontal, and left parietal WMH volumes, also showing better fit compared to ALES. When cardiovascular biomarkers were removed from the ALSC algorithm, only left-frontal WMHV remained associated with AL, revealing a strong vascular burden influencing the index. Our results agree with previous evidence and suggest that sustained stress exposure enhances brain deterioration in mid-life adults. Showing better fit than ALES, our comprehensive algorithm can provide a more accurate AL estimation to explore how stress exposure enhances age-related health decline.
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- 2024
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43. Chromosomal rearrangements played an important role in the speciation of rice rats of genus Cerradomys (Rodentia, Sigmodontinae, Oryzomyini)
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Willam Oliveira da Silva, Stella Miranda Malcher, Malcolm Andrew Ferguson-Smith, Patricia Caroline Mary O’Brien, Rogério Vieira Rossi, Lena Geise, Julio Cesar Pieczarka, and Cleusa Yoshiko Nagamachi
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Medicine ,Science - Abstract
Abstract Rodents of the genus Cerradomys belong to tribe Oryzomyini, one of the most diverse and speciose groups in Sigmodontinae (Rodentia, Cricetidae). The speciation process in Cerradomys is associated with chromosomal rearrangements and biogeographic dynamics in South America during the Pleistocene era. As the morphological, molecular and karyotypic aspects of Myomorpha rodents do not evolve at the same rate, we strategically employed karyotypic characters for the construction of chromosomal phylogeny to investigate whether phylogenetic relationships using chromosomal data corroborate the radiation of Cerradomys taxa recovered by molecular phylogeny. Comparative chromosome painting using Hylaeamys megacephalus (HME) whole chromosome probes in C. langguthi (CLA), Cerradomys scotii (CSC), C. subflavus (CSU) and C. vivoi (CVI) shows that karyotypic variability is due to 16 fusion events, 2 fission events, 10 pericentric inversions and 1 centromeric repositioning, plus amplification of constitutive heterochromatin in the short arms of the X chromosomes of CSC and CLA. The chromosomal phylogeny obtained by Maximum Parsimony analysis retrieved Cerradomys as a monophyletic group with 97% support (bootstrap), with CSC as the sister to the other species, followed by a ramification into two clades (69% of branch support), the first comprising CLA and the other branch including CVI and CSU. We integrated the chromosome painting analysis of Eumuroida rodents investigated by HME and Mus musculus (MMU) probes and identified several syntenic blocks shared among representatives of Cricetidae and Muridae. The Cerradomys genus underwent an extensive karyotypic evolutionary process, with multiple rearrangements that shaped extant karyotypes. The chromosomal phylogeny corroborates the phylogenetic relationships proposed by molecular analysis and indicates that karyotypic diversity is associated with species radiation. Three syntenic blocks were identified as part of the ancestral Eumuroida karyotype (AEK): MMU 7/19 (AEK 1), MMU 14 (AEK 10) and MMU 12 (AEK 11). Besides, MMU 5/10 (HME 18/2/24) and MMU 8/13 (HME 22/5/11) should be considered as signatures for Cricetidae, while MMU 5/9/14, 5/7/19, 5 and 8/17 for Sigmodontinae.
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- 2024
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44. Temporal dynamics of the early immune response following Mycobacterium bovis infection of cattle
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Thomas Holder, Sreenidhi Srinivasan, Adrian McGoldrick, Gareth A. Williams, Simonette Palmer, John Clarke, Amanda O’Brien, Andrew J. K. Conlan, Nick Juleff, H. Martin Vordermeier, Gareth J. Jones, and Vivek Kapur
- Subjects
Medicine ,Science - Abstract
Abstract Bovine tuberculosis is an infectious disease of global significance that remains endemic in many countries. Mycobacterium bovis infection in cattle is characterized by a cell-mediated immune response (CMI) that precedes humoral responses, however the timing and trajectories of CMI and antibody responses determined by newer generation assays remain undefined. Here we used defined-antigen interferon-gamma release assays (IGRA) and an eleven-antigen multiplex ELISA (Enferplex TB test) alongside traditional tuberculin-based IGRA and IDEXX M. bovis antibody tests to assess immune trajectories following experimental M. bovis infection of cattle. The results show CMI responses developed as early as two-weeks post-infection, with all infected cattle testing positive three weeks post-infection. Interestingly, 6 of 8 infected animals were serologically positive with the Enferplex TB assay as early as 4 weeks post-infection. As expected, application of the tuberculin skin test enhanced subsequent serological reactivity. Infrequent M. bovis faecal shedding was observed but was uncorrelated with observed immune trajectories. Together, the results show that early antibody responses to M. bovis infection are detectable in some individuals and highlight an urgent need to identify biomarkers that better predict infection outcomes, particularly for application in low-and-middle income countries where test-and-slaughter based control methods are largely unfeasible.
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- 2024
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45. Exploring Elinor Ostrom's principles for collaborative group working within a user-led project: lessons from a collaboration between researchers and a user-led organisation
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Bella Wheeler, Oli Williams, Becki Meakin, Eleni Chambers, Peter Beresford, Sarah O’Brien, and Glenn Robert
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Collaborative group working ,User-led organisation ,Inclusion ,Inclusive involvement ,Methodology ,Innovation ,Medicine ,Medicine (General) ,R5-920 - Abstract
Abstract Background Some research has been undertaken into the mechanisms that shape successful participatory approaches in the context of efforts to improve health and social care. However, greater attention needs to be directed to how partnerships between researchers and user-led organisations (ULOs) might best be formed, practiced, managed, and assessed. We explored whether political economist Elinor Ostrom’s Nobel prize winning analysis of common pool resource management—specifically eight principles to enhance collaborative group working as derived from her empirical research—could be usefully applied within a user-led project aiming to co-design new services to support more inclusive involvement of Disabled people in decision-making processes in policy and practice. Methods Participant observation and participatory methods over a 16-month period comprising observational notes of online user-led meetings (26 h), online study team meetings (20 h), online Joint Interpretive Forum meetings (8 h), and semi-structured one-to-one interviews with project participants (44 h) at two time points (months 6 and 10). Results Initially it proved difficult to establish working practices informed by Ostrom’s principles for collaborative group working within the user-led project. Several attempts were made to put a structure in place that met the needs of both the research study and the aims of the user-led project, but this was not straightforward. An important shift saw a move away from directly applying the principles to the working practices of the group and instead applying them to specific tasks the group were undertaking. This was a helpful realisation which enabled the principles to become—for most but not all participants—a useful facilitation device in the latter stages of the project. Eventually we applied the principles in a way that was useful and enabled collaboration between researchers and a ULO (albeit in unexpected ways). Conclusions Our joint reflections emphasise the importance of being reflexive and responsive when seeking to apply theories of collaboration (the principles) within user-led work. At an early stage, it is important to agree shared definitions and understanding of what ‘user-led’ means in practice. It is crucial to actively adapt and translate the principles in ways that make them more accessible and applicable within groups where prior knowledge of their origins is both unlikely and unnecessary.
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- 2024
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46. Toenail and serum levels as biomarkers of iron status in pre- and postmenopausal women: correlations and stability over eight-year follow-up
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Ann Von Holle, Katie M. O’Brien, Dale P. Sandler, Robert Janicek, Margaret R. Karagas, Alexandra J. White, Nicole M. Niehoff, Keith E. Levine, Brian P. Jackson, and Clarice R. Weinberg
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Medicine ,Science - Abstract
Abstract Iron status is often assessed in epidemiologic studies, and toenails offer a convenient alternative to serum because of ease of collection, transport, and storage, and the potential to reflect a longer exposure window. Very few studies have examined the correlation between serum and toenail levels for trace metals. Our aim was to compare iron measures using serum and toenails on both a cross-sectional and longitudinal basis. Using a subset of the US-wide prospective Sister Study cohort, we compared toenail iron measures to serum concentrations for iron, ferritin and percent transferrin saturation. Among 146 women who donated both blood and toenails at baseline, a subsample (59%, n = 86) provided specimens about 8 years later. Cross-sectional analyses included nonparametric Spearman’s rank correlations between toenail and serum biomarker levels. We assessed within-woman maintenance of rank across time for the toenail and serum measures and fit mixed effects models to measure change across time in relation to change in menopause status. Spearman correlations at baseline (follow-up) were 0.08 (0.09) for serum iron, 0.08 (0.07) for transferrin saturation, and − 0.09 (− 0.17) for ferritin. The within-woman Spearman correlation for toenail iron between the two time points was higher (0.47, 95% CI 0.30, 0.64) than for serum iron (0.30, 95% CI 0.09, 0.51) and transferrin saturation (0.34, 95% CI 0.15, 0.54), but lower than that for ferritin (0.58, 95% CI 0.43, 0.73). Serum ferritin increased over time while nail iron decreased over time for women who experienced menopause during the 8-years interval. Based on cross-sectional and repeated assessments, our evidence does not support an association between serum biomarkers and toenail iron levels. Toenail iron concentrations did appear to be moderately stable over time but cannot be taken as a proxy for serum iron biomarkers and they may reflect physiologically distinct fates for iron.
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- 2024
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47. Chromosomal scale assembly reveals localized structural variants in avian caecal coccidian parasite Eimeria tenella
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Subodh K. Srivastava, Carolyn Parker, Celia N. O’Brien, Matthew S. Tucker, Peter C. Thompson, Benjamin M. Rosenthal, Jitender P. Dubey, Asis Khan, and Mark C. Jenkins
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Medicine ,Science - Abstract
Abstract Eimeria tenella is a major cause of caecal coccidiosis in commercial poultry chickens worldwide. Here, we report chromosomal scale assembly of Eimeria tenella strain APU2, a strain isolated from commercial broiler chickens in the U.S. We obtained 100× sequencing Oxford Nanopore Technology (ONT) and more than 800× Coverage of Illumina Next-Seq. We created the assembly using the hybrid approach implemented in MaSuRCA, achieving a contiguous 51.34 Mb chromosomal-scale scaffolding enabling identification of structural variations. The AUGUSTUS pipeline predicted 8060 genes, and BUSCO deemed the genomes 99% complete; 6278 (78%) genes were annotated with Pfam domains, and 1395 genes were assigned GO-terms. Comparing E. tenella strains (APU2, US isolate and Houghton, UK isolate) derived Houghton strain of E. tenella revealed 62,905 high stringency differences, of which 45,322 are single nucleotide polymorphisms (SNPs) (0.088%). The rate of transitions/transversions among the SNPs are 1.63 ts/tv. The strains possess conserved gene order but have profound sequence heterogeneity in a several chromosomal segments (chr 2, 11 and 15). Genic and intergenic variation in defined gene families was evaluated between the two strains to possibly identify sequences under selection. The average genic nucleotide diversity of 2.8 with average 2 kb gene length (0.145%) at genic level. We examined population structure using available E. tenella sequences in NCBI, revealing that the two E. tenella isolates from the U.S. (E. tenella APU2 and Wisconsin, “ERR296879”) share a common maternal inheritance with the E. tenella Houghton. Our chromosomal level assembly promotes insight into Eimeria biology and evolution, hastening drug discovery and vaccine development.
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- 2023
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48. AI in Rehabilitation Medicine: Opportunities and Challenges
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Francesco Lanotte, Megan K. O’Brien, and Arun Jayaraman
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machine learning ,rehabilitation outcome ,wearable devices ,computer vision systems ,precision medicine ,Medicine - Abstract
Artificial intelligence (AI) tools are increasingly able to learn from larger and more complex data, thus allowing clinicians and scientists to gain new insights from the information they collect about their patients every day. In rehabilitation medicine, AI can be used to find patterns in huge amounts of healthcare data. These patterns can then be leveraged at the individual level, to design personalized care strategies and interventions to optimize each patient’s outcomes. However, building effective AI tools requires many careful considerations about how we collect and handle data, how we train the models, and how we interpret results. In this perspective, we discuss some of the current opportunities and challenges for AI in rehabilitation. We first review recent trends in AI for the screening, diagnosis, treatment, and continuous monitoring of disease or injury, with a special focus on the different types of healthcare data used for these applications. We then examine potential barriers to designing and integrating AI into the clinical workflow, and we propose an end-to-end framework to address these barriers and guide the development of effective AI for rehabilitation. Finally, we present ideas for future work to pave the way for AI implementation in real-world rehabilitation practices.
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- 2023
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49. Admission Point-of-Care Testing for the Clinical Care of Children with Cerebral Malaria
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David Wichman, Geoffrey Guenther, Nthambose M. Simango, Mengxin Yu, Dylan Small, Olivia D. Findorff, Nathaniel O. Amoah, Rohini Dasan, Karl B. Seydel, Douglas G. Postels, and Nicole F. O’Brien
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malaria ,pediatrics ,point-of-care testing ,Medicine - Abstract
Point-of-care testing (PoCT), an alternative to laboratory-based testing, may be useful in the clinical care of critically ill children in resource-limited settings. We evaluated the clinical utility of PoCT in the care of 193 Malawian children treated for World Health Organization-defined cerebral malaria (CM) between March 2019 and May 2023. We assessed the frequency of abnormal PoCT results and the clinical interventions performed in response to these abnormalities. We determined the association between abnormal PoCT results and patient outcomes. Overall, 52.1% of all PoCT results were abnormal. Of the children with abnormal results, clinical interventions occurred in 16.9%. Interventions most commonly followed abnormal results for PoCT glucose (100.0% of the patients had treatment for hypoglycemia), potassium (32.1%), lactate (22.0%), and creatinine (16.3%). Patients with hypoglycemia, hyperlactatemia, and hypocalcemia had a higher mortality risk than children with normal values. Future studies are needed to determine whether obtaining laboratory values using PoCT and the clinical response to these interventions modify outcomes in critically ill African children with CM.
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- 2024
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50. Protocol for evaluating the fitness for purpose of an artificial intelligence product for radiology reporting in the BreastScreen New South Wales breast cancer screening programme
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David Roder, Richard Walton, Chirag Mistry, Tracey A O’Brien, Matthew Warner-Smith, Kan Ren, Nalini Bhola, and Sarah McGill
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Medicine - Abstract
Introduction Radiologist shortages threaten the sustainability of breast cancer screening programmes. Artificial intelligence (AI) products that can interpret mammograms could mitigate this risk. While previous studies have suggested this technology has accuracy comparable to radiologists most have been limited by using ‘enriched’ datasets and/or not considering the interaction between the algorithm and human readers. This study will address these limitations by comparing the accuracy of a workflow using AI alongside radiologists on a large consecutive cohort of examinations from a breast cancer screening programme. The study will combine the strengths of a large retrospective design with the benefit of prospective data collection. It will test this technology without risk to screening programme participants nor the need to wait for follow-up data. With a sample of 2 years of consecutive screening examinations, it is likely the largest test of this technology to date. The study will help determine whether this technology can safely be introduced into the BreastScreen New South Wales (NSW) population-based screening programme to address radiology workforce risks without compromising cancer detection rates or increasing false-positive recalls.Methods and analysis A retrospective, consecutive cohort of digital mammography screens from 658 207 examinations from BreastScreen NSW will be reinterpreted by the Lunit Insight MMG AI product. The cohort includes 4383 screen-detected and 1171 interval cancers. The results will be compared with radiologist single reading and the AI results will also be used to replace the second reader in a double-reading model. New adjudication reading will be performed where the AI disagrees with the first reader. Recall rates and cancer detection rates of combined AI–radiologist reading will be compared with the rates obtained at the time of screening.Ethics and dissemination This study has ethical approval from the NSW Health Population Health Services Research Ethics Committee (2022/ETH02397). Findings will be published in peer-reviewed journals and presented at conferences. The findings of this evaluation will be provided to programme managers, governance bodies and other stakeholders in Australian breast cancer screening programmes.
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- 2024
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