3,640 results on '"Ashley, C"'
Search Results
2. Assessing Team Performance: A Mixed-Methods Analysis Using Interprofessional in situ Simulation
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Rider, Ashley C., Williams, Sarah R., Jones, Vivien, Rebagliati, Daniel, Schertzer, Kimberly, Gisondi, Michael A., and Sebok-Syer, Stefanie S.
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team performance ,leadership ,Simulation ,Interprofessional ,interdependence - Abstract
Introduction: Optimizing the performance of emergency department (ED) teams impacts patient care, but the utility of current, team-based performance assessment tools to comprehensively measure this impact is underexplored. In this study we aimed to 1) evaluate ED team performance using current team-based assessment tools during an interprofessional in situ simulation and 2) identify characteristics of effective ED teams.Methods: This mixed-methods study employed case study methodology based on a constructivist paradigm. Sixty-three eligible nurses, technicians, pharmacists, and postgraduate year 2–4 emergency medicine residents at a tertiary academic ED participated in a 10-minute in situ simulation of a critically ill patient. Participants self-rated performance using the Team Performance Observation Tool (TPOT) 2.0 and completed a brief demographic form. Two raters independently reviewed simulation videos and rated performance using the TPOT 2.0, Team Emergency Assessment Measure (TEAM), and Ottawa Crisis Resource Management Global Rating Scale (Ottawa GRS). Following simulations, we conducted semi-structured interviews and focus groups with in situ participants. Transcripts were analyzed using thematic analysis.Results: Eighteen team-based simulations took place between January–April 2021. Raters’ scores were on the upper end of the tools for the TPOT 2.0 (R1 4.90, SD 0.17; R2 4.53, SD 0.27, IRR [inter-rater reliability] 0.47), TEAM (R1 3.89, SD 0.19; R2 3.58, SD 0.39, IRR 0.73), and Ottawa GRS (R1 6.6, SD 0.56; R2 6.2, SD 0.54, IRR 0.68). We identified six themes from our interview data: team member entrustment; interdependent energy; leadership tone; optimal communication; strategic staffing; and simulation empowering team performance.Conclusion: Current team performance assessment tools insufficiently discriminate among high performing teams in the ED. Emergency department-specific assessments that capture features of entrustability, interdependent energy, and leadership tone may offer a more comprehensive way to assess an individual’s contribution to a team’s performance.
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- 2024
3. A semi-structured interview is associated with bariatric surgery outcomes
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Punt, Stephanie E., Caicedo, Mariana Rincon, Rhodes, Ashley C., Ilardi, Stephen S., and Hamilton, Jessica L.
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- 2024
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4. Detection and spread of high pathogenicity avian influenza virus H5N1 in the Antarctic Region
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Ashley C. Banyard, Ashley Bennison, Alexander M. P. Byrne, Scott M. Reid, Joshua G. Lynton-Jenkins, Benjamin Mollett, Dilhani De Silva, Jacob Peers-Dent, Kim Finlayson, Rosamund Hall, Freya Blockley, Marcia Blyth, Marco Falchieri, Zoe Fowler, Elaine M. Fitzcharles, Ian H. Brown, and Joe James
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Science - Abstract
Abstract Until recent events, the Antarctic was the only major geographical region in which high pathogenicity avian influenza virus (HPAIV) had never previously been detected. Here we report on the detection of clade 2.3.4.4b H5N1 HPAIV in the Antarctic and sub-Antarctic regions of South Georgia and the Falkland Islands, respectively. We initially detected H5N1 HPAIV in samples collected from brown skuas at Bird Island, South Georgia on 8th October 2023. Since this detection, mortalities were observed in several avian and mammalian species at multiple sites across South Georgia. Subsequent testing confirmed H5N1 HPAIV across several sampling locations in multiple avian species and two seal species. Simultaneously, we also confirmed H5N1 HPAIV in southern fulmar and black-browed albatross in the Falkland Islands. Genetic assessment of the virus indicates spread from South America, likely through movement of migratory birds. Critically, genetic assessment of sequences from mammalian species demonstrates no increased risk to human populations above that observed in other instances of mammalian infections globally. Here we describe the detection, species impact and genetic composition of the virus and propose both introductory routes and potential long-term impact on avian and mammalian species across the Antarctic region. We also speculate on the threat to specific populations following recent reports in the area.
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- 2024
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5. Differential T cell accumulation within intracranial and subcutaneous melanomas is associated with differences in intratumoral myeloid cells
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Stasiak, Katarzyna, Stevens, Aaron D., Bolte, Ashley C., Curley, Colleen T., Perusina Lanfranca, Mirna, Lindsay, Robin S., Eyo, Ukpong B., Lukens, John R., Price, Richard J., Bullock, Timothy N. J., and Engelhard, Victor H.
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- 2025
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6. Detection and spread of high pathogenicity avian influenza virus H5N1 in the Antarctic Region
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Banyard, Ashley C., Bennison, Ashley, Byrne, Alexander M. P., Reid, Scott M., Lynton-Jenkins, Joshua G., Mollett, Benjamin, De Silva, Dilhani, Peers-Dent, Jacob, Finlayson, Kim, Hall, Rosamund, Blockley, Freya, Blyth, Marcia, Falchieri, Marco, Fowler, Zoe, Fitzcharles, Elaine M., Brown, Ian H., and James, Joe
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- 2024
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7. Structure and function of the SIT1 proline transporter in complex with the COVID-19 receptor ACE2
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Li, Huanyu Z., Pike, Ashley C. W., Lotsaris, Irina, Chi, Gamma, Hansen, Jesper S., Lee, Sarah C., Rödström, Karin E. J., Bushell, Simon R., Speedman, David, Evans, Adam, Wang, Dong, He, Didi, Shrestha, Leela, Nasrallah, Chady, Burgess-Brown, Nicola A., Vandenberg, Robert J., Dafforn, Timothy R., Carpenter, Elisabeth P., and Sauer, David B.
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- 2024
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8. The survival benefit of adjuvant trastuzumab with or without chemotherapy in the management of small (T1mic, T1a, T1b, T1c), node negative HER2+ breast cancer
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Johnson, Kai C. C., Ni, Ai, Quiroga, Dionisia, Pariser, Ashley C., Sudheendra, Preeti K., Williams, Nicole O., Sardesai, Sagar D., Cherian, Mathew, Stover, Daniel G., Gatti-Mays, Margaret, Ramaswamy, Bhuvaneswari, Lustberg, Maryam, Jhawar, Sachin, Skoracki, Roman, and Wesolowski, Robert
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- 2024
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9. Extracellular modulation of TREK-2 activity with nanobodies provides insight into the mechanisms of K2P channel regulation
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Rödström, Karin E. J., Cloake, Alexander, Sörmann, Janina, Baronina, Agnese, Smith, Kathryn H. M., Pike, Ashley C. W., Ang, Jackie, Proks, Peter, Schewe, Marcus, Holland-Kaye, Ingelise, Bushell, Simon R., Elliott, Jenna, Pardon, Els, Baukrowitz, Thomas, Owens, Raymond J., Newstead, Simon, Steyaert, Jan, Carpenter, Elisabeth P., and Tucker, Stephen J.
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- 2024
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10. Food sufficiency status and sleep outcomes in older adults: the National Health and Aging Trends Study (NHATS)
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Flores, Ashley C., Sarpong, Christopher, Dou, Nan, and Na, Muzi
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- 2024
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11. Home and wild food procurement were associated with improved food security during the COVID-19 pandemic in two rural US states
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Niles, Meredith T., McCarthy, Ashley C., Malacarne, Jonathan, Bliss, Sam, Belarmino, Emily H., Laurent, Jennifer, Merrill, Scott C., Nowak, Sarah A., and Schattman, Rachel E.
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- 2024
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12. Assessing Team Performance: A Mixed-Methods Analysis Using Interprofessional in situ Simulation
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Ashley C. Rider, Sarah R. Williams, Vivien Jones, Daniel Rebagliati, Kimberly Schertzer, Michael A. Gisondi, and Stefanie S. Sebok-Syer
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Medicine ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Introduction: Optimizing the performance of emergency department (ED) teams impacts patient care, but the utility of current, team-based performance assessment tools to comprehensively measure this impact is underexplored. In this study we aimed to 1) evaluate ED team performance using current team-based assessment tools during an interprofessional in situ simulation and 2) identify characteristics of effective ED teams. Methods: This mixed-methods study employed case study methodology based on a constructivist paradigm. Sixty-three eligible nurses, technicians, pharmacists, and postgraduate year 2–4 emergency medicine residents at a tertiary academic ED participated in a 10-minute in situ simulation of a critically ill patient. Participants self-rated performance using the Team Performance Observation Tool (TPOT) 2.0 and completed a brief demographic form. Two raters independently reviewed simulation videos and rated performance using the TPOT 2.0, Team Emergency Assessment Measure (TEAM), and Ottawa Crisis Resource Management Global Rating Scale (Ottawa GRS). Following simulations, we conducted semi-structured interviews and focus groups with in situ participants. Transcripts were analyzed using thematic analysis. Results: Eighteen team-based simulations took place between January–April 2021. Raters’ scores were on the upper end of the tools for the TPOT 2.0 (R1 4.90, SD 0.17; R2 4.53, SD 0.27, IRR [inter-rater reliability] 0.47), TEAM (R1 3.89, SD 0.19; R2 3.58, SD 0.39, IRR 0.73), and Ottawa GRS (R1 6.6, SD 0.56; R2 6.2, SD 0.54, IRR 0.68). We identified six themes from our interview data: team member entrustment; interdependent energy; leadership tone; optimal communication; strategic staffing; and simulation empowering team performance. Conclusion: Current team performance assessment tools insufficiently discriminate among high performing teams in the ED. Emergency department-specific assessments that capture features of entrustability, interdependent energy, and leadership tone may offer a more comprehensive way to assess an individual’s contribution to a team’s performance.
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- 2024
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13. Structure and function of the SIT1 proline transporter in complex with the COVID-19 receptor ACE2
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Huanyu Z. Li, Ashley C. W. Pike, Irina Lotsaris, Gamma Chi, Jesper S. Hansen, Sarah C. Lee, Karin E. J. Rödström, Simon R. Bushell, David Speedman, Adam Evans, Dong Wang, Didi He, Leela Shrestha, Chady Nasrallah, Nicola A. Burgess-Brown, Robert J. Vandenberg, Timothy R. Dafforn, Elisabeth P. Carpenter, and David B. Sauer
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Science - Abstract
Abstract Proline is widely known as the only proteogenic amino acid with a secondary amine. In addition to its crucial role in protein structure, the secondary amino acid modulates neurotransmission and regulates the kinetics of signaling proteins. To understand the structural basis of proline import, we solved the structure of the proline transporter SIT1 in complex with the COVID-19 viral receptor ACE2 by cryo-electron microscopy. The structure of pipecolate-bound SIT1 reveals the specific sequence requirements for proline transport in the SLC6 family and how this protein excludes amino acids with extended side chains. By comparing apo and substrate-bound SIT1 states, we also identify the structural changes that link substrate release and opening of the cytoplasmic gate and provide an explanation for how a missense mutation in the transporter causes iminoglycinuria.
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- 2024
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14. The survival benefit of adjuvant trastuzumab with or without chemotherapy in the management of small (T1mic, T1a, T1b, T1c), node negative HER2+ breast cancer
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Kai C. C. Johnson, Ai Ni, Dionisia Quiroga, Ashley C. Pariser, Preeti K. Sudheendra, Nicole O. Williams, Sagar D. Sardesai, Mathew Cherian, Daniel G. Stover, Margaret Gatti-Mays, Bhuvaneswari Ramaswamy, Maryam Lustberg, Sachin Jhawar, Roman Skoracki, and Robert Wesolowski
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract There is limited data regarding the added benefit of adjuvant systemic therapy in the management of small, node-negative, HER2+ breast cancer. In a multi-institutional retrospective analysis using the American Society of Clinical Oncology CancerLinQ database, we compared survival outcomes among T1a-c N0 HER2+ patients diagnosed between 2010 to 2021 who received locoregional therapy alone or in combination with adjuvant trastuzumab (+/− chemotherapy). Primary outcomes were invasive disease-free survival (iDFS) and overall survival (OS). Of the 1,184 patients, 436 received locoregional therapy alone. We found a statistically significant improvement in iDFS (HR 0.73, P = 0.003) and OS (HR 0.63, P = 0.023) on univariate analysis with adjuvant trastuzumab with or without chemotherapy which remained statistically significant on multivariate analysis. Three-arm univariate analysis found that iDFS was significantly improved with trastuzumab monotherapy (P = 0.003) and combination therapy (P = 0.027) compared to observation. Subgroup data suggests that T1b/c tumors derive the greatest benefit.
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- 2024
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15. Non-Suicidal Self-Injury Among Adolescents: A Structural Model with Socioecological Connectedness, Bullying Victimization, and Depression
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Baker, Ashley C, Wallander, Jan L, Elliott, Marc N, and Schuster, Mark A
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Pediatric ,Youth Violence ,Violence Research ,Mental Health ,Depression ,Childhood Injury ,Physical Injury - Accidents and Adverse Effects ,Behavioral and Social Science ,Good Health and Well Being ,Humans ,Male ,Adolescent ,Female ,Self-Injurious Behavior ,Bullying ,Crime Victims ,Models ,Structural ,NSSI ,Socioecological connectedness ,Bullying victimization ,Depressive symptoms ,Clinical Sciences ,Paediatrics and Reproductive Medicine ,Psychology ,Developmental & Child Psychology - Abstract
The objective was to examine the associations of socioecological connectedness with bullying victimization and depressive symptoms in early adolescence and with non-suicidal self-injury (NSSI) in mid-adolescence, and how these might differ between genders. Diverse adolescents (N = 4115; 49.1% girls) in the 7th grade reported on connections with parents/family, peers, school, and neighborhood, as well as bullying victimization and depressive symptoms, and NSSI in 10th grade (Me = 16.1 years). Structural equation modeling with WSLMV indicated that the lower likelihood of NSSI in 10th grade was associated with higher perceptions of connections between adolescents and their families, both directly as well as indirectly through reduced bully victimization and depressive symptoms three years earlier. Higher school connectedness was indirectly associated with the lower likelihood of NSSI through bullying victimization and depressive symptoms. Paths to NSSI varied for girls and boys. Results advance the understanding of developmental pathways leading to NSSI in adolescent girls and boys.
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- 2023
16. mHealth Physical Activity and Patient-Reported Outcomes in Patients With Inflammatory Bowel Diseases: Cluster Analysis
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Ashley C Griffin, Lucas Mentch, Feng-Chang Lin, and Arlene E Chung
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Computer applications to medicine. Medical informatics ,R858-859.7 ,Public aspects of medicine ,RA1-1270 - Abstract
BackgroundRegular physical activity is associated with improved quality of life in patients with inflammatory bowel diseases (IBDs), although much of the existing research is based on self-reported data. Wearable devices provide objective data on many rich physical activity dimensions including steps, duration, distance, and intensity. Little is known about how patients with IBDs engage in these varying dimensions of exercise and how it may influence their symptom and disease-specific patient-reported outcomes (PROs). ObjectiveThis study aims to (1) cluster physical activity patterns from consumer-grade wearable devices and (2) assess the relationship between the clusters and PROs in patients with IBDs. MethodsWe conducted a cross-sectional and longitudinal cohort study among adults with IBDs in the Crohn’s and Colitis Foundation IBD Partners cohort. Participants contribute physical activity data through smartphone apps or wearable devices in a bring-your-own-device model. Participants also complete biannual PRO questionnaires from the Patient-Reported Outcomes Measurement Information System short forms and IBD-specific questionnaires. K-means cluster analysis was used to generate physical activity clusters based on 3 key features: number of steps, duration of moderate to vigorous activity (minutes), and distance of activity (miles). Based on the clusters, we conducted a cross-sectional analysis to examine differences in mean questionnaire scores and participant characteristics using one-way ANOVA and chi-square tests. We also conducted a longitudinal analysis to examine individual cluster transitions among participants who completed multiple questionnaires, and mean differences in questionnaire scores were compared using 2-tailed paired sample t tests across 6-month periods. ResultsAmong 430 participants comprising 1255 six-week physical activity periods, we identified clusters of low (33.7%, n=423), moderate (46%, n=577), and high (20.3%, n=255) physical activity. Scores varied across clusters for depression (P=.004), pain interference (P
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- 2024
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17. Extracellular modulation of TREK-2 activity with nanobodies provides insight into the mechanisms of K2P channel regulation
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Karin E. J. Rödström, Alexander Cloake, Janina Sörmann, Agnese Baronina, Kathryn H. M. Smith, Ashley C. W. Pike, Jackie Ang, Peter Proks, Marcus Schewe, Ingelise Holland-Kaye, Simon R. Bushell, Jenna Elliott, Els Pardon, Thomas Baukrowitz, Raymond J. Owens, Simon Newstead, Jan Steyaert, Elisabeth P. Carpenter, and Stephen J. Tucker
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Science - Abstract
Abstract Potassium channels of the Two-Pore Domain (K2P) subfamily, KCNK1-KCNK18, play crucial roles in controlling the electrical activity of many different cell types and represent attractive therapeutic targets. However, the identification of highly selective small molecule drugs against these channels has been challenging due to the high degree of structural and functional conservation that exists not only between K2P channels, but across the whole K+ channel superfamily. To address the issue of selectivity, here we generate camelid antibody fragments (nanobodies) against the TREK-2 (KCNK10) K2P K+ channel and identify selective binders including several that directly modulate channel activity. X-ray crystallography and CryoEM data of these nanobodies in complex with TREK-2 also reveal insights into their mechanisms of activation and inhibition via binding to the extracellular loops and Cap domain, as well as their suitability for immunodetection. These structures facilitate design of a biparatropic inhibitory nanobody with markedly improved sensitivity. Together, these results provide important insights into TREK channel gating and provide an alternative, more selective approach to modulation of K2P channel activity via their extracellular domains.
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- 2024
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18. Postnatal growth restriction alters myocardial mitochondrial energetics in mice
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Joseph R. Visker, Eric C. Leszczynski, Austin G. Wellette‐Hunsucker, Ashley C. McPeek, Melissa A. Quinn, Seong Hyun Kim, Jason N. Bazil, and David P. Ferguson
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cardiovascular disease ,development ,growth restriction ,mitochondrial function ,oxidative stress ,reactive oxygen species ,Physiology ,QP1-981 - Abstract
Abstract Postnatal growth restriction (PGR) can increase the risk of cardiovascular disease (CVD) potentially due to impairments in oxidative phosphorylation (OxPhos) within cardiomyocyte mitochondria. The purpose of this investigation was to determine if PGR impairs cardiac metabolism, specifically OxPhos. FVB (Friend Virus B‐type) mice were fed a normal‐protein (NP: 20% protein), or low‐protein (LP: 8% protein) isocaloric diet 2 weeks before mating. LP dams produce ∼20% less milk, and pups nursed by LP dams experience reduced growth into adulthood as compared to pups nursed by NP dams. At birth (PN1), pups born to dams fed the NP diet were transferred to LP dams (PGR group) or a different NP dam (control group: CON). At weaning (PN21), all mice were fed the NP diet. At PN22 and PN80, mitochondria were isolated for respirometry (oxygen consumption rate, JO2) and fluorimetry (reactive oxygen species emission, JH2O2) analysis measured as baseline respiration (LEAK) and with saturating ADP (OxPhos). Western blotting at PN22 and PN80 determined protein abundance of uncoupling protein 3, peroxiredoxin‐6, voltage‐dependent anion channel and adenine nucleotide translocator 1 to provide further insight into mitochondrial function. ANOVAs with the main effects of diet, sex and age with α‐level of 0.05 was set a priori. Overall, PGR (7.8 ± 1.1) had significant (P = 0.01) reductions in respiratory control in complex I when compared to CON (8.9 ± 1.0). In general, our results show that PGR led to higher electron leakage in the form of free radical production and reactive oxygen species emission. No significant diet effects were found in protein abundance. The observed reduced respiratory control and increased ROS emission in PGR mice may increase risk for CVD in mice.
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- 2024
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19. Rapid mortality in captive bush dogs (Speothos venaticus) caused by influenza A of avian origin (H5N1) at a wildlife collection in the United Kingdom
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Marco Falchieri, Scott M. Reid, Akbar Dastderji, Jonathan Cracknell, Caroline J. Warren, Benjamin C. Mollett, Jacob Peers-Dent, Audra-Lynne D. Schlachter, Natalie Mcginn, Richard Hepple, Saumya Thomas, Susan Ridout, Jen Quayle, Romain Pizzi, Alejandro Núñez, Alexander M. P. Byrne, Joe James, and Ashley C. Banyard
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Avian influenza ,systemic infection ,bush dogs ,conservation species ,terrestrial carnivores ,H5N1 ,Infectious and parasitic diseases ,RC109-216 ,Microbiology ,QR1-502 - Abstract
Europe has suffered unprecedented epizootics of high pathogenicity avian influenza (HPAI) clade 2.3.4.4b H5N1 since Autumn 2021. As well as impacting upon commercial and wild avian species, the virus has also infected mammalian species more than ever observed previously. Mammalian species involved in spill over events have primarily been scavenging terrestrial carnivores and farmed mammalian species although marine mammals have also been affected. Alongside reports of detections of mammalian species found dead through different surveillance schemes, several mass mortality events have been reported in farmed and wild animals. In November 2022, an unusual mortality event was reported in captive bush dogs (Speothos venaticus) with clade 2.3.4.4b H5N1 HPAIV of avian origin being the causative agent. The event involved an enclosure of 15 bush dogs, 10 of which succumbed during a nine-day period with some dogs exhibiting neurological disease. Ingestion of infected meat is proposed as the most likely infection route.
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- 2024
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20. A multi-species, multi-pathogen avian viral disease outbreak event: Investigating potential for virus transmission at the wild bird – poultry interface
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Scott M. Reid, Alexander M. P. Byrne, Fabian Z. X. Lean, Craig S. Ross, Andrei Pascu, Richard Hepple, Maria Dominguez, Susanne Frost, Vivien J. Coward, Alejandro Núñez, Joe James, Levon Stephan, James N. Aegerter, Ian H. Brown, and Ashley C. Banyard
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High pathogenicity avian influenza virus (HPAIV) ,H5N8 ,clade 2.3.4.4b ,multi-species ,avian paramyxovirus type 1 ,Infectious and parasitic diseases ,RC109-216 ,Microbiology ,QR1-502 - Abstract
A free-range organic broiler (Gallus gallus domesticus) premises in Staffordshire was infected by high pathogenicity avian influenza virus (HPAIV) H5N8 during the 2020–2021 epizootic in the United Kingdom (UK). Following initial confirmation of the infection in poultry, multiple wild bird species were seen scavenging on chicken carcasses. Detected dead wild birds were subsequently demonstrated to have been infected and succumbed to HPAIV H5N8. Initially, scavenging species, magpie (Pica pica) and raven (Corvus corax) were found dead on the premises but over the following days, buzzards (Buteo buteo) were also found dead within the local area with positive detection of HPAIV in submitted carcasses. The subacute nature of microscopic lesions within a buzzard was consistent with the timeframe of infection. Finally, a considerable number of free-living pheasants (Phasianus colchicus) were also found dead in the surrounding area, with carcasses having higher viral antigen loads compared to infected chickens. Limited virus dissemination was observed in the carcasses of the magpie, raven, and buzzard. Further, an avirulent avian paramyxovirus type 1 (APMV-1) was detected within poultry samples as well as in the viscera of a magpie infected with HPAIV. Immunohistochemistry did not reveal colocalization of avian paramyxovirus antigens with lesions, supporting an avirulent APMV-1 infection. Overall, this case highlights scenarios in which bi-directional transmission of avian viral diseases between commercial and wild bird species may occur. It also underlines the importance of bio separation and reduced access when infection pressure from HPAIV is high.
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- 2024
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21. Biomaterial systems for evaluating the influence of ECM mechanics on anti-fibrotic therapeutic efficacy
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Aryssa Simpson, Emily P. Mihalko, Caroline Fox, Smriti Sridharan, Manasi Krishnakumar, and Ashley C. Brown
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Myocardial infarction ,Nanogel ,Cardiac fibrosis ,Tissue plasminogen activator ,Y-27632 ,Viscoelasticity ,Biology (General) ,QH301-705.5 - Abstract
Cardiac fibrosis is characterized by excessive accumulation and deposition of ECM proteins. Cardiac fibrosis is commonly implicated in a variety of cardiovascular diseases, including post-myocardial infarction (MI). We have previously developed a dual-delivery nanogel therapeutic to deliver tissue plasminogen activator (tPA) and Y-27632 (a ROCK inhibitor) to address MI-associated coronary artery occlusion and downregulate cell-contractility mediated fibrotic responses. Initial in vitro studies were conducted on glass substrates. The study presented here employs the use of polyacrylamide (PA) gels and microgel thin films to mimic healthy and fibrotic cardiac tissue mechanics. Soft and stiff polyacrylamide substrates or high and low loss tangent microgel thin films were utilized to examine the influence of cell-substrate interactions on dual-loaded nanogel therapeutic efficacy. In the presence of Y-27632 containing nanogels, a reduction of fibrotic marker expression was noted on traditional PA gels mimicking healthy and fibrotic cardiac tissue mechanics. These findings differed on more physiologically relevant microgel thin films, where early treatment with the ROCK inhibitor intensified the fibrotic related responses.
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- 2024
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22. Erratum to ‘Illustrated State-of-the-Art Capsules of the ISTH 2024 Congress’ [Research and Practice in Thrombosis and Haemostasis Volume 8, Issue 4, May 2024, 102432]
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Chris Ward, Nicola Curry, Magdy El-Ekiaby, Kerstin Jurk, Henri H. Versteeg, Charithani Keragala, Tal Burstyn-Cohen, Silvio Antoniak, Yuko Suzuki, Ross I. Baker, Olivier Christophe, Shoshana Revel-Vilk, Alice Hart, Carsten Deppermann, Huyen Tran, Nicola Pozzi, Walter H.A. Kahr, Steven P. Grover, Philip Wenzel, Ashley C. Brown, Cécile Oury, Susan M. Shea, James Fredenburgh, Freda H. Passam, James Winearls, Hunter B. Moore, Soumitra Tole, Eileen Merriman, Geoffrey D. Barnes, Z. Leonardo Liu, Michelle Sholzberg, José Rivera, and Ana Marín-Quilez
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Diseases of the blood and blood-forming organs ,RC633-647.5 - Published
- 2024
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23. Comparison of seasonal viral prevalence supports honey bees as potential spring pathogen reservoirs for bumble bees
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Briana E. Wham, Elyse C. McCormick, Casey M. Carr, Nicole R. Bracci, Ashley C. Heimann, Timothy J. Egner, M. Jesse Schneider, and Heather M. Hines
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Apis ,Bombus ,pathogen ,seasonality ,transmission ,Ecology ,QH540-549.5 - Abstract
Abstract Bee declines pose a serious risk to agricultural sustainability, wild plant diversity, and the commercial bee industry, generating local and global concerns about bee health. Parasites, including micro‐parasites and macro‐parasites, negatively impact bee population dynamics. Management of parasites requires an understanding of the cyclic trends in prevalence and the factors impacting these patterns. In this study, we advance understanding of parasite epidemiology and transmission among members of the bee community toward the goal of improving predictability of parasite prevalence seasonally. Honey bees and bumble bees were collected throughout an active season and across multiple overwintering periods. These bees were molecularly tested for two common bee viruses—deformed wing virus (DWV) and black queen cell virus (BQCV)—and morphologically screened for Vairimorpha spp., nematodes, and parasitic flies to determine whether these parasites exhibit unique seasonal trends, if overwintering behavior impacts parasite survival, and how these patterns differ between honey bees and bumble bees. The results suggest consistent seasonal trends between honey bees and bumble bees; however, these trends are parasite‐specific. Honey bees consistently exhibited a higher magnitude of viral prevalence compared with bumble bees. Both honey bees and bumble bees reduced viral prevalence over the winter; however, only in bumble bees did this drop to negligible prevalence each spring. These data suggest that honey bees may have a larger impact on parasite transmission, as they pose to reinfect bees which otherwise would have very low prevalence each spring and sustain high levels of infection in communities year‐round.
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- 2024
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24. Adolescent neurocognitive development and decision-making abilities regarding gender-affirming care
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Orma Ravindranath, Maria I. Perica, Ashley C. Parr, Amar Ojha, Shane D. McKeon, Gerald Montano, Naomi Ullendorff, Beatriz Luna, and E. Kale Edmiston
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Adolescence ,Gender-affirming care ,Transgender ,Cognition ,Decision-making ,Policy ,Neurophysiology and neuropsychology ,QP351-495 - Abstract
Recently, politicians and legislative bodies have cited neurodevelopmental literature to argue that brain immaturity undermines decision-making regarding gender-affirming care (GAC) in youth. Here, we review this literature as it applies to adolescents’ ability to make decisions regarding GAC. The research shows that while adolescence is a time of peak risk-taking behavior that may lead to impulsive decisions, neurocognitive systems supporting adult-level decisions are available given deliberative processes that minimize influence of short-term rewards and peers. Since GAC decisions occur over an extended period and with support from adult caregivers and clinicians, adolescents can engage adult-level decision-making in this context. We also weigh the benefits of providing GAC access during adolescence and consider the significant costs of blocking or delaying GAC. Transgender and non-binary (TNB) adolescents face significant mental health challenges, many of which are mitigated by GAC access. Further, initiating the GAC process during adolescence, which we define as beginning at pubertal onset, leads to better long-term mental health outcomes than waiting until adulthood. Taken together, existing research indicates that many adolescents can make informed decisions regarding gender-affirming care, and that this care is critical for the well-being of TNB youth. We highlight relevant considerations for policy makers, researchers, and clinicians.
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- 2024
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25. Experimental and modeling approaches to determine drug diffusion coefficients in artificial mucus
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Wynne, Ashley C., Abbott, Brandon S., Niazi, Reza, Foley, Kayla, and Walters, Keisha B.
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- 2024
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26. Speaking Truth to Power: Toward a Forensic Anthropology of Advocacy and Activism
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Donovan M. Adams, Juliette R. Bedard, Samantha H. Blatt, Eman Faisal, Jesse R. Goliath, Grace Gregory-Alcock, Ariel Gruenthal-Rankin, Patricia N. Morales Lorenzo, Ashley C. Smith, Sean D. Tallman, Rylan Tegtmeyer Hawke, and Hannah Whitelaw
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advocacy ,activism ,forensic anthropology ,Black, Indigenous, and People of Color ,Missing and Murdered Indigenous People ,Migrant ,Anthropology ,GN1-890 ,Archaeology ,CC1-960 - Abstract
Over the years, the field of forensic anthropology has become more diverse, bringing unique perspectives to a previously homogeneous field. This diversification has been accompanied by recognizing the need for advocacy and activism in an effort to support the communities we serve: marginalized communities that are often overrepresented in the forensic population. As such, forensic anthropologists see the downstream effects of colonialism, white supremacy, inequitable policies, racism, poverty, homophobia, transphobia, gun violence, and misogyny. Some argue that advocacy and activism have no place in forensic anthropological praxis. The counterarguments for engaging in advocacy and activism uphold white, heterosexual, cisgender, and ableist privilege by arguing that perceived objectivity and unbiased perspectives are more important than personally biasing experiences and positionality that supposedly jeopardize the science and expert testimony. Advocacy and activism, however, are not new to the practice of anthropology. Whether through sociocultural anthropology, archaeology, or other areas of biological anthropology, activism and advocacy play an important role, using both the scientific method and community engagement. Using a North American approach, we detail the scope of the issues, address how advocacy and activism are perceived in the wider discipline of anthropology, and define ways in which advocacy and activism can be utilized more broadly in the areas of casework, research, and education.
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- 2024
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27. Food sufficiency status and sleep outcomes in older adults: the National Health and Aging Trends Study (NHATS)
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Ashley C. Flores, Christopher Sarpong, Nan Dou, and Muzi Na
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Nutrition ,Health ,Aging ,Sleep disparity ,Nationally Representative Data ,NHATS ,Nutrition. Foods and food supply ,TX341-641 ,Nutritional diseases. Deficiency diseases ,RC620-627 - Abstract
Abstract Background Studies investigating the relationship between food insecurity and sleep among older populations are limited. This study aimed to cross-sectionally examine the associations between food sufficiency status and sleep outcomes in a nationally representative sample of older adults. Methods Our study included 1,665 older adults (≥ 65 years), using data from the 2013 and 2014 National Health and Aging Trends Study (NHATS). Food insufficiency was determined via participants’ experience and utilization of food assistance programs (FAP). Sleep outcomes, including nighttime and total sleep hours, sleep latency, and sleep quality, were derived from self-reported data. Multivariable linear regression and logistic regression models were used to estimate the associations between food sufficiency status and sleep outcomes. Results In 2013–2014, 86.1% of older adults were classified as food sufficient without FAP, 9.85% as food sufficient with FAP, and 4.08% as food insufficient. Adjusting for sociodemographic characteristics, food sufficient older adults with FAP reported more total sleep hours (𝛽 = 0.31, 95% CI: -0.02, 0.64) than those participants who are food sufficient without FAP. Further adjusting for health factors, food sufficient participants with FAP had more nighttime sleep hours and greater total sleep hours compared to those participants food sufficient without FAP. Compared to those deemed as food sufficient without FAP, food sufficient participants with FAP had lower odds of having longer sleep latency (OR = 0.50, 95% CI: 0.28, 0.89), after further adjusting for physical function performance. Conclusions Among older adults, food sufficiency with FAP is associated with greater total sleep hours, greater nighttime sleep hours, and lower odds of longer sleep latency. Our findings may help inform nutrition food assistance programs targeting older populations.
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- 2024
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28. Home and wild food procurement were associated with improved food security during the COVID-19 pandemic in two rural US states
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Meredith T. Niles, Ashley C. McCarthy, Jonathan Malacarne, Sam Bliss, Emily H. Belarmino, Jennifer Laurent, Scott C. Merrill, Sarah A. Nowak, and Rachel E. Schattman
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Medicine ,Science - Abstract
Abstract Both food insecurity and home and wild food procurement (HWFP), including gardening, increased in many countries during the COVID-19 pandemic; yet little evidence has demonstrated what impact HWFP had on food security. Using data from a representative sample of nearly 1000 residents in the two most rural US states (Vermont and Maine) conducted via an online survey in Spring/Summer 2021, as well as matching techniques, we compare food security outcomes among households who did and did not participate in HWFP in the first year of the pandemic. Nearly 60% of respondents engaged in HWFP in some way during the first year of the pandemic, with food insecure households more likely to do HWFP. Furthermore, HWFP early in the COVID-19 pandemic is associated with improved food security in the 9–12 months later, though these improvements were primarily associated with newly, not chronically, food insecure households. Newly and chronically food insecure households were more likely to want to continue these activities in the future, but also exhibited greater barriers to land access and costs associated with these activities. These results suggest that HWFP may provide food security improvements for certain households that utilize them, especially during crisis situations. Future research about HWFP should continue to explore multiple HWFP strategies, their barriers, and their potentially myriad relationships to food security, diet, and health outcomes, especially with longitudinal data.
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- 2024
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29. The Necrotrophic Pathogen Parastagonospora nodorum Is a Master Manipulator of Wheat Defense
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Gayan K. Kariyawasam, Ashley C. Nelson, Simon J. Williams, Peter S. Solomon, Justin D. Faris, and Timothy L. Friesen
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effector ,fungal pathogen ,necrotrophic effector ,Parastagonospora nodorum ,wheat ,Microbiology ,QR1-502 ,Botany ,QK1-989 - Abstract
Parastagonospora nodorum is a necrotrophic pathogen of wheat that is particularly destructive in major wheat-growing regions of the United States, northern Europe, Australia, and South America. P. nodorum secretes necrotrophic effectors that target wheat susceptibility genes to induce programmed cell death (PCD), resulting in increased colonization of host tissue and, ultimately, sporulation to complete its pathogenic life cycle. Intensive research over the last two decades has led to the functional characterization of five proteinaceous necrotrophic effectors, SnTox1, SnToxA, SnTox267, SnTox3, and SnTox5, and three wheat susceptibility genes, Tsn1, Snn1, and Snn3D-1. Functional characterization has revealed that these effectors, in addition to inducing PCD, have additional roles in pathogenesis, including chitin binding that results in protection from wheat chitinases, blocking defense response signaling, and facilitating plant colonization. There are still large gaps in our understanding of how this necrotrophic pathogen is successfully manipulating wheat defense to complete its life cycle. This review summarizes our current knowledge, identifies knowledge gaps, and provides a summary of well-developed tools and resources currently available to study the P. nodorum–wheat interaction, which has become a model for necrotrophic specialist interactions. Further functional characterization of the effectors involved in this interaction and work toward a complete understanding of how P. nodorum manipulates wheat defense will provide fundamental knowledge about this and other necrotrophic interactions. Additionally, a broader understanding of this interaction will contribute to the successful management of Septoria nodorum blotch disease on wheat. [Graphic: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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- 2023
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30. Genomic Diversity and Evolutionary Insights of Avian Paramyxovirus-1 in Avian Populations in Pakistan
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Muhammad Zubair Shabbir, Sahar Mahmood, Aziz Ul-Rahman, Ashley C. Banyard, and Craig S. Ross
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avian paramyxovirus-1 ,evolutionary dynamics ,genotypes and sub-genotypes ,Pakistan ,Microbiology ,QR1-502 - Abstract
The virulent form of Avian paramyxovirus-1 (APMV-1), commonly known as Newcastle Disease Virus (NDV), is a pathogen with global implications for avian health, affecting both wild and domestic bird populations. In Pakistan, recurrent Newcastle Disease (caused by NDV) outbreaks have posed significant challenges to the poultry industry. Extensive surveillance in Pakistan over 20 years has demonstrated a dynamic genetic diversity among circulating APMV-1 strains, emphasizing the potential necessity for customized vaccination strategies and continuous surveillance. In this study, 13 APMV-1-positive isolates harboring four different APMV-1 genotypes circulating throughout Pakistan were identified. These included the highly virulent genotypes VII and XIII, genotype XXI, commonly associated with Columbiformes, and genotype II, hypothesized to have been detected following vaccination. These findings underscore the intricate interplay of mutational events and host-immune interactions shaping the evolving NDV landscape. This study advances our understanding of the evolutionary dynamics of APMV-1 in Pakistan, highlighting the need for tailored vaccination strategies and continuous surveillance to enable effective APMV-1 management in avian populations, further emphasizing the importance of globally coordinated strategies to tackle APMV-1, given its profound impact on wild and domestic birds.
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- 2024
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31. Performance-Linked Visual Feedback Slows Response Times during a Sustained Attention Task
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Steinkrauss, Ashley C., Shaikh, Anjum F., O'Brien Powers, Erin, and Moher, Jeff
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In the present study, we tested a visual feedback triggering system based on real-time tracking of response time (RT) in a sustained attention task. In our task, at certain points, brief visual feedback epochs were presented without interrupting the task itself. When these feedback epochs were performance-linked--meaning that they were triggered because participants were responding more quickly than usual--RTs were slowed after the presentation of feedback. However, visual feedback epochs displayed at predetermined times that were independent of participants' performance did not slow RTs. Results from a second experiment support the idea that this is not simply a return to baseline that would have occurred had the feedback not been presented, but instead suggest that the feedback itself was effective in altering participants' responses. In a third experiment, we replicated this result across with both written word feedback and visual symbolic feedback, as well as in cases where the participant was explicitly told that the feedback was linked to their performance. All together, these data provide insight into potential mechanisms for detecting and disrupting lapses in sustained attention without interrupting a continuous task.
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- 2023
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32. Biomaterial systems for evaluating the influence of ECM mechanics on anti-fibrotic therapeutic efficacy
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Simpson, Aryssa, Mihalko, Emily P., Fox, Caroline, Sridharan, Smriti, Krishnakumar, Manasi, and Brown, Ashley C.
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- 2024
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33. Adolescent neurocognitive development and decision-making abilities regarding gender-affirming care
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Ravindranath, Orma, Perica, Maria I., Parr, Ashley C., Ojha, Amar, McKeon, Shane D., Montano, Gerald, Ullendorff, Naomi, Luna, Beatriz, and Edmiston, E. Kale
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- 2024
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34. A canonical trajectory of executive function maturation from adolescence to adulthood
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Tervo-Clemmens, Brenden, Calabro, Finnegan J., Parr, Ashley C., Fedor, Jennifer, Foran, William, and Luna, Beatriz
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- 2023
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35. SARS-CoV-2 vaccination, booster, and infection in pregnant population enhances passive immunity in neonates
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Murphy, Elisabeth A., Guzman-Cardozo, Camila, Sukhu, Ashley C., Parks, Debby J., Prabhu, Malavika, Mohammed, Iman, Jurkiewicz, Magdalena, Ketas, Thomas J., Singh, Sunidhi, Canis, Marie, Bednarski, Eva, Hollingsworth, Alexis, Thompson, Embree M., Eng, Dorothy, Bieniasz, Paul D., Riley, Laura E., Hatziioannou, Theodora, and Yang, Yawei J.
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- 2023
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36. Aperiodic EEG and 7T MRSI evidence for maturation of E/I balance supporting the development of working memory through adolescence
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Shane D. McKeon, Maria I. Perica, Ashley C. Parr, Finnegan J. Calabro, Will Foran, Hoby Hetherington, Chan-Hong Moon, and Beatriz Luna
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EEG ,Adolescent development ,Aperiodic activity ,GABA ,Glutamate ,Excitation/Inhibition balance ,Neurophysiology and neuropsychology ,QP351-495 - Abstract
Adolescence has been hypothesized to be a critical period for the development of human association cortex and higher-order cognition. A defining feature of critical period development is a shift in the excitation: inhibition (E/I) balance of neural circuitry, however how changes in E/I may enhance cortical circuit function to support maturational improvements in cognitive capacities is not known. Harnessing ultra-high field 7 T MR spectroscopy and EEG in a large, longitudinal cohort of youth (N = 164, ages 10–32 years old, 347 neuroimaging sessions), we delineate biologically specific associations between age-related changes in excitatory glutamate and inhibitory GABA neurotransmitters and EEG-derived measures of aperiodic neural activity reflective of E/I balance in prefrontal association cortex. Specifically, we find that developmental increases in E/I balance reflected in glutamate:GABA balance are linked to changes in E/I balance assessed by the suppression of prefrontal aperiodic activity, which in turn facilitates robust improvements in working memory. These findings indicate a role for E/I-engendered changes in prefrontal signaling mechanisms in the maturation of cognitive maintenance. More broadly, this multi-modal imaging study provides evidence that human association cortex undergoes physiological changes consistent with critical period plasticity during adolescence.
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- 2024
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37. A canonical trajectory of executive function maturation from adolescence to adulthood
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Brenden Tervo-Clemmens, Finnegan J. Calabro, Ashley C. Parr, Jennifer Fedor, William Foran, and Beatriz Luna
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Science - Abstract
Abstract Theories of human neurobehavioral development suggest executive functions mature from childhood through adolescence, underlying adolescent risk-taking and the emergence of psychopathology. Investigations with relatively small datasets or narrow subsets of measures have identified general executive function development, but the specific maturational timing and independence of potential executive function subcomponents remain unknown. Integrating four independent datasets (N = 10,766; 8–35 years old) with twenty-three measures from seventeen tasks, we provide a precise charting, multi-assessment investigation, and replication of executive function development from adolescence to adulthood. Across assessments and datasets, executive functions follow a canonical non-linear trajectory, with rapid and statistically significant development in late childhood to mid-adolescence (10–15 years old), before stabilizing to adult-levels in late adolescence (18–20 years old). Age effects are well captured by domain-general processes that generate reproducible developmental templates across assessments and datasets. Results provide a canonical trajectory of executive function maturation that demarcates the boundaries of adolescence and can be integrated into future studies.
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- 2023
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38. Modulation of diabetic wound healing using carbon monoxide gas-entrapping materials
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Witt, Emily, Leach, Alexander J., Bi, Jianling, Hatfield, Samual, Cotoia, Alicia T., McGovern, Megan K., Cafi, Arielle B., Rhodes, Ashley C., Cook, Austin N., Uaroon, Slyn, Parajuli, Bishal, Kim, Jinhee, Feig, Vivian, Scheiflinger, Alexandra, Nwosu, Ikenna, Jimenez, Miguel, Coleman, Mitchell C., Buchakjian, Marisa R., Bosch, Dustin E., Tift, Michael S., Traverso, Giovanni, Otterbein, Leo E., and Byrne, James D.
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- 2024
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39. Aperiodic EEG and 7T MRSI evidence for maturation of E/I balance supporting the development of working memory through adolescence
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McKeon, Shane D., Perica, Maria I., Parr, Ashley C., Calabro, Finnegan J., Foran, Will, Hetherington, Hoby, Moon, Chan-Hong, and Luna, Beatriz
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- 2024
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40. Timely Colonoscopy After Positive Fecal Immunochemical Tests in the Veterans Health Administration: A Qualitative Assessment of Current Practice and Perceived Barriers
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Mog, Ashley C, Liang, Peter S, Donovan, Lucas M, Sayre, George G, Shaukat, Aasma, May, Folasade P, Glorioso, Thomas J, Jorgenson, Michelle A, Wood, Gordon Blake, Mueller, Candice, and Dominitz, Jason A
- Subjects
Biomedical and Clinical Sciences ,Clinical Sciences ,Cancer ,Digestive Diseases ,Health Services ,Clinical Research ,Colo-Rectal Cancer ,Prevention ,Aging ,Management of diseases and conditions ,7.3 Management and decision making ,Good Health and Well Being ,Colonoscopy ,Colorectal Neoplasms ,Early Detection of Cancer ,Humans ,Occult Blood ,Veterans Health ,Clinical sciences - Abstract
IntroductionThe Veterans Health Administration introduced a clinical reminder system in 2018 to help address process gaps in colorectal cancer screening, including the diagnostic evaluation of positive fecal immunochemical test (FIT) results. We conducted a qualitative study to explore the differences between facilities who performed in the top vs bottom decile for follow-up colonoscopy.MethodsSeventeen semistructured interviews with gastroenterology (GI) providers and staff were conducted at 9 high-performing and 8 low-performing sites.ResultsWe identified 2 domains, current practices and perceived barriers, and most findings were described by both high- and low-performing sites. Findings exclusive to 1 group mainly pertained to current practices, especially arranging colonoscopy for FIT-positive patients. We observed only 1 difference in the perceived barriers domain, which pertained to primary care providers.DiscussionThese results suggest that what primarily distinguishes high- and low-performing sites is not a difference in barriers but rather in the GI clinical care process. Developing and disseminating patient education materials about the importance of diagnostic colonoscopy, eliminating in-person precolonoscopy visits when clinically appropriate, and involving GI in missed colonoscopy appointments and outside referrals should all be considered to increase follow-up colonoscopy rates. Our study illustrates the challenges of performing a timely colonoscopy after a positive FIT result and provides insights on improving the clinical care process for patients who are at substantially increased risk for colorectal cancer.
- Published
- 2022
41. Evaluating the Impact of Low-Pathogenicity Avian Influenza H6N1 Outbreaks in United Kingdom and Republic of Ireland Poultry Farms during 2020
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Michael J. McMenamy, Robyn McKenna, Valerie B. Bailie, Ben Cunningham, Adam Jeffers, Kelly McCullough, Catherine Forsythe, Laura Garza Cuartero, Orla Flynn, Christina Byrne, Emily Connaghan, John Moriarty, June Fanning, Stephanie Ronan, Damien Barrett, Alice Fusaro, Isabella Monne, Calogero Terregino, Joe James, Alexander M. P. Byrne, Fabian Z. X. Lean, Alejandro Núñez, Scott M. Reid, Rowena Hansen, Ian H. Brown, Ashley C. Banyard, and Ken Lemon
- Subjects
low-pathogenicity avian influenza virus ,avian influenza virus subtype H6 ,H6N1 outbreaks ,impact of LPAIV ,Microbiology ,QR1-502 - Abstract
In January 2020, increased mortality was reported in a small broiler breeder flock in County Fermanagh, Northern Ireland. Gross pathological findings included coelomitis, oophoritis, salpingitis, visceral gout, splenomegaly, and renomegaly. Clinical presentation included inappetence, pronounced diarrhoea, and increased egg deformation. These signs, in combination with increased mortality, triggered a notifiable avian disease investigation. High pathogenicity avian influenza virus (HPAIV) was not suspected, as mortality levels and clinical signs were not consistent with HPAIV. Laboratory investigation demonstrated the causative agent to be a low-pathogenicity avian influenza virus (LPAIV), subtype H6N1, resulting in an outbreak that affected 15 premises in Northern Ireland. The H6N1 virus was also associated with infection on 13 premises in the Republic of Ireland and six in Great Britain. The close genetic relationship between the viruses in Ireland and Northern Ireland suggested a direct causal link whereas those in Great Britain were associated with exposure to a common ancestral virus. Overall, this rapidly spreading outbreak required the culling of over 2 million birds across the United Kingdom and the Republic of Ireland to stamp out the incursion. This report demonstrates the importance of investigating LPAIV outbreaks promptly, given their substantial economic impacts.
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- 2024
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42. Influence of human activity on gut microbiota and immune responses of Darwin’s finches in the Galápagos Islands
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Jada N Bygrave, Ashley C Love, Maxine Zylberberg, Alyssa Addesso, and Sarah A Knutie
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human activity ,immunity ,microbiome ,urbanization ,Ecology ,QH540-549.5 - Abstract
Urbanization can influence many environmental factors that can affect the condition, immunity, and gut microbiota of birds. Over the past several decades, the Galápagos Islands of Ecuador have experienced increasing human activity, which has led to recent changes in the morphology, gut microbiota, and immunity of Darwin’s finches. However, these traits have not been characterized before the exponential growth of human population size and tourist visitation rates, i.e., before 2009. The goal of this study was to determine the effect of land use on the fecal microbiota, immune response, and body measurements of Darwin’s finches in 2008, at a time of rapidly increasing human activity on the islands. Specifically, we compared fecal microbiota (bacterial diversity, community structure and membership, and relative abundance of bacterial taxa), proxies of immunity (lysozyme activity and haptoglobin, complement antibody, and natural antibody levels), and body measurements (body mass and condition, tarsus length) across undeveloped, agricultural, and urban areas for medium ground finches ( Geospiza fortis ) and small ground finches ( G. fuliginosa ). Lysozyme activity was lower and observed bacterial species richness was higher in urban areas compared to non-urban areas across both finch species. In medium ground finches, four genera ( Methylobacterium-Methylorubrum , Escherichia-Shigella , Brucella , and Citrobacter spp.) were higher in urban areas compared to undeveloped areas. In small ground finches, Paucibacter , Achromobacter , Delftia , Stenotrophomonas , and Brucella spp. had higher relative abundances in undeveloped and agricultural areas whereas the genus Cutibacterium was more abundant in finches from urban and agricultural areas than in finches from undeveloped areas. Medium ground finches were smaller in undeveloped areas compared to the other two areas, but body mass of small ground finches did not differ across areas. Our results suggest that human activity can have an impact on immune measures and gut microbiota of Darwin’s finches.
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- 2024
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43. SARS-CoV-2 vaccination, booster, and infection in pregnant population enhances passive immunity in neonates
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Elisabeth A. Murphy, Camila Guzman-Cardozo, Ashley C. Sukhu, Debby J. Parks, Malavika Prabhu, Iman Mohammed, Magdalena Jurkiewicz, Thomas J. Ketas, Sunidhi Singh, Marie Canis, Eva Bednarski, Alexis Hollingsworth, Embree M. Thompson, Dorothy Eng, Paul D. Bieniasz, Laura E. Riley, Theodora Hatziioannou, and Yawei J. Yang
- Subjects
Science - Abstract
Abstract The effects of heterogeneous infection, vaccination and boosting histories prior to and during pregnancy have not been extensively studied and are likely important for protection of neonates. We measure levels of spike binding antibodies in 4600 patients and their neonates with different vaccination statuses, with and without history of SARS-CoV-2 infection. We investigate neutralizing antibody activity against different SARS-CoV-2 variant pseudotypes in a subset of 259 patients and determined correlation between IgG levels and variant neutralizing activity. We further study the ability of maternal antibody and neutralizing measurements to predict neutralizing antibody activity in the umbilical cord blood of neonates. In this work, we show SARS-CoV-2 vaccination and boosting, especially in the setting of previous infection, leads to significant increases in antibody levels and neutralizing activity even against the recent omicron BA.1 and BA.5 variants in both pregnant patients and their neonates.
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- 2023
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44. Shifting the Forensic Anthropological Paradigm to Incorporate the Transgender and Gender Diverse Community
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Donovan M. Adams, Samantha H. Blatt, Taylor M. Flaherty, Jaxson D. Haug, Mariyam I. Isa, Amy R. Michael, and Ashley C. Smith
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forensic anthropology ,gender identity ,gender diversity ,transgender ,personal identification ,DEI ,Anthropology ,GN1-890 ,Archaeology ,CC1-960 - Abstract
Forensic anthropology and, more broadly, the forensic sciences have only recently begun to acknowledge the importance of lived gender identity in the resolution of forensic cases, the epidemic of anti-transgender violence, and the need to seek practical solutions. The current literature suggests that forensic anthropologists are becoming aware of these issues and are working toward efforts to improve identification of transgender and gender diverse (TGD) persons. The scope of the problem, however, is not limited to methodology and instead can be traced to systemic anti-trans stigma ingrained within our cultural institutions. As such, we call on forensic anthropologists to counteract cisgenderism and transphobia and promote gender equity and inclusion in their practice. In this paper, we identify three areas in which forensic anthropologists may be positioned to intervene on cisgenderist practices and systems: in casework, research, and education. This paper aims to provide strategies for forensic anthropologists to improve resolution of TGD cases, produce more nuanced, gender-informed research, and promote gender equity and inclusion in the field.
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- 2023
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45. IRB-draft-generator: A generative AI tool to streamline the creation of institutional review board applications
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Ryan C. Godwin, Ayesha S. Bryant, Brant M. Wagener, Timothy J. Ness, Jennifer J. DeBerry, LaShun L. Horn, Shanna H. Graves, Ashley C. Archer, and Ryan L. Melvin
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Institutional review board ,Generative AI ,Large language models ,Computer software ,QA76.75-76.765 - Abstract
The Institutional Review Board (IRB) is fundamental to conducting ethical research involving human subjects. IRB applications require detailed descriptions of the research and specific indications of how the research will be implemented. This can be difficult for inexperienced researchers. Preparing the application is a significant time commitment, even for experienced researchers. In order to lighten the administrative burden on busy clinical professionals, this software application will automatically generate a draft human subject research protocol (the most laborious element of an IRB application) based on responses to a short form. This technology uses generative AI and a custom literature search plug-in to draft the protocol from succinct, user-provided details. User inputs include a brief description of the research, including the hypothesis, inclusion/exclusion criteria, and the study design type (e.g., randomized clinical trial). This tool can expedite the IRB application creation process, provide additional consistency for reviewers, and may reduce clinician researcher burnout through a reduction in clerical work thereby facilitating participation in meaningful research.
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- 2024
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46. Sn-modification of Pt7/alumina model catalysts: Suppression of carbon deposition and enhanced thermal stability
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Li, Guangjing, Zandkarimi, Borna, Cass, Ashley C., Gorey, Timothy J., Allen, Bradley J., Alexandrova, Anastassia N., and Anderson, Scott L.
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Physics - Chemical Physics - Abstract
An atomic layer deposition process is used to modify size-selected Pt7/alumina model catalysts by Sn addition, both before and after Pt7 cluster deposition. Surface science methods are used to probe the effects of Sn-modification on the electronic properties, reactivity, and morphology of the clusters. Sn addition, either before or after cluster deposition, is found to strongly affect the binding properties of a model alkene, ethylene, changing the number and type of binding sites, and suppressing decomposition leading to carbon deposition and poisoning of the catalyst. Density functional theory on a model system, Pt4Sn3/alumina, shows that the Sn and Pt atoms are mixed, forming alloy clusters with substantial electron transfer from Sn to Pt. The presence of Sn also makes all the thermally accessible structures closed shell, such that ethylene binds only by {\pi}-bonding to a single Pt atom. The Sn-modified catalysts are quite stable in repeated ethylene temperature programmed reaction experiments, suggesting that the presence of Sn also reduces the tendency of the sub-nano-clusters to undergo thermal sintering.
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- 2020
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47. Implementation of a Scalable Online Weight Management Programme in Clinical Settings: Protocol for the PROPS 2.0 Programme (Partnerships for Reducing Overweight and Obesity with Patient-Centered Strategies 2.0)
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David Westfall Bates, Jason P Block, Lipika Samal, Ronen Rozenblum, Caroline M Apovian, Benjamin M Scirica, Heather J Baer, John E Orav, JoAnn Cho, Sarah H Noonan, Richard Fay, Ashley C McCarthy, Alexander J Blood, Naomi Fisher, Jorge Plutzky, Michela Tucci, Marian McPartlin, Willam J Gordon, Katherine D McManus, and Cheryl Morrison-Deutsch
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Medicine - Abstract
Introduction There is an urgent need for scalable strategies for treating overweight and obesity in clinical settings. PROPS 2.0 (Partnerships for Reducing Overweight and Obesity with Patient-Centered Strategies 2.0) aims to adapt and implement the combined intervention from the PROPS Study at scale, in a diverse cross-section of patients and providers.Methods and analysis We are implementing PROPS 2.0 across a variety of clinics at Brigham and Women’s Hospital, targeting enrolment of 5000 patients. Providers can refer patients or patients can self-refer. Eligible patients must be ≥20 years old and have a body mass index (BMI) of ≥30 kg/m2 or a BMI of 25–29.9 kg/m2 plus another cardiovascular risk factor or obesity-related condition. After enrolment, patients register for the RestoreHealth online programme/app (HealthFleet Inc.) and participate for 12 months. Patients can engage with the programme and receive personalized feedback from a coach. Patient navigators help to enrol patients, enter updates in the electronic health record, and refer patients to additional resources. The RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) framework is guiding the evaluation.Ethics and dissemination The Mass General Brigham Human Research Committee approved this protocol. An implementation guide will be created and disseminated, to help other sites adopt the intervention in the future.Trial registration number NCT0555925.
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- 2023
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48. Aortic rupture during STABILISE (stent-assisted balloon-induced intimal disruption and relamination in aortic dissection repair) technique
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Ashley C. Hsu, MD, Alexander D. DiBartolomeo, MD, Sukgu M. Han, MD, MS, Fernando Fleischman, MD, and Gregory A. Magee, MD, MSc
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Aortic ballooning ,Aortic dissection ,Aortic rupture ,Endovascular repair ,STABILISE technique ,Surgery ,RD1-811 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
The STABILISE (stent-assisted balloon-induced intimal disruption and relamination in aortic dissection repair) technique has shown promising results for treating type B aortic dissections, but the potential exists for fatal adverse effects. We present a case of infrarenal aortic rupture while using a compliant balloon to balloon mold the true lumen inside previously placed bare metal stents during the STABILISE technique. Caution is advised for providers who wish to perform the STABILISE technique, and we recommend using a semi-compliant balloon sized to the smallest total aortic diameter to mitigate the risk of rupture.
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- 2023
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49. Biomaterials for treating sepsis-induced thromboinflammation
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Halle Lutz and Ashley C. Brown
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biomaterials ,sepsis ,inflammation ,hemostasis ,thromboinflammation ,targeted delivery ,Biotechnology ,TP248.13-248.65 - Abstract
Sepsis is a common and life-threatening disorder with an alarmingly high mortality rate. Unfortunately, this rate has not decreased significantly over the last decade and the number of septic cases is increasing each year. Despite sepsis affecting millions of people annually, there is still not an established standard of care. The development of a therapy that targets the thromboinflammation characteristic of sepsis is imperative. Until recently, research has focused on uncovering individual pathways to target. As more of the pathophysiology of sepsis has become understood and more biomarkers uncovered, the interplay between endothelial cells, platelets, and leukocytes has emerged as a critical event. Therefore, a multi-targeted approach is clearly required for designing an effective treatment for sepsis. The versatility of biomaterials offers a promising solution in that they can be designed to target and affect multiple pathways and systems and safely inhibit excessive inflammation while maintaining hemostasis. Already, studies have demonstrated the ability of biomaterials to target different processes and stages in sepsis-induced inflammation and coagulopathy. Moreover, some biomaterials offer inherent anti-inflammatory and hemostatic qualities. This review aims to discuss the most recent advancements in biomaterial development designed to address inflammation, coagulopathy, and thromboinflammation.
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- 2023
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- View/download PDF
50. Simple design for membrane-free microphysiological systems to model the blood-tissue barriers
- Author
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Young, By Ashlyn T., Deal, Halston, Rusch, Gabrielle, Pozdin, Vladimir A., Brown, Ashley C., and Daniele, Michael
- Published
- 2023
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