336,887 results on '"Scott P"'
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2. Description of a new species of Chrysonotomyia Ashmead from Houston, Texas, USA (Hymenoptera, Chalcidoidea, Eulophidae)
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Brendan O’Loughlin, Pedro F. P. Brandão-Dias, Michael W. Gates, and Scott P. Egan
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Zoology ,QL1-991 - Abstract
A new species of the genus Chrysonotomyia Ashmead, Chrysonotomyia susbelli sp. nov., is described from the Rice University campus in Houston, Texas, USA. The species is a parasitoid emerging from Neuroterus nr. bussae galls in leaves of the southern live oak (Quercus virginiana). This represents the 6th species described from North America north of Mexico and the first in the world known to parasitize cynipid gall wasps. This discovery hints at an entire undiscovered niche between Chrysonotomyia parasitoids, cynipid gall wasps, and oaks in the Nearctic, which is a global biodiversity hotspot for oaks and cynipids. This new species description is complemented by mtDNA-COI-barcode data and information on the natural history of this species. We record host association, phenology, and report a leaf-scanning behavior performed by females, presumably to search for host galls. Modifications to the key of New World members of the genus (Hansson 2004) are included to integrate this new species.
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- 2024
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3. Hepatitis E virus immunosuppressed animal models
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Kush Kumar Yadav and Scott P. Kenney
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Hepatitis ,Humans ,Immunosuppressed ,Animal ,Models ,Chronic ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Hepatitis E virus (HEV) is an important emerging pathogen producing significant morbidity in immunosuppressed patients. HEV has been detrimental to solid organ transplant (SOT) patients, cancer patients, and HIV-positive patients, where chronic HEV infections occur. Blood-borne transfusions and multiple cases of chronic HEV infection in transplant patients have been reported in the past few decades, necessitating research on HEV pathogenesis using immunosuppressed animal models. Numerous animal species with unique naturally occurring HEV strains have been found, several of which have the potential to spread to humans and to serve as pathogenesis models. Host immunosuppression leads to viral persistence and chronic HEV infection allows for genetic adaptation to the human host creating new strains with worse disease outcomes. Procedures necessary for SOT often entail blood transfusions placing immunosuppressive patients into a “high risk group” for HEV infection. This scenario requires an appropriate immunosuppressive animal model to understand disease patterns in these patients. Hence, this article reviews the recent advances in the immunosuppressed animal models for chronic HEV infection with emphasis on pathogenesis, immune correlates, and the liver pathology associated with the chronic HEV infections.
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- 2024
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4. Microglia either promote or restrain TRAIL-mediated excitotoxicity caused by Aβ1−42 oligomers
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Jian Zou, Elizabeth McNair, Sagan DeCastro, Scott P. Lyons, Angie Mordant, Laura E. Herring, Ryan P. Vetreno, and Leon G. Coleman Jr
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Alzheimer’s disease ,Amyloid ,Neurodegeneration ,TRAIL ,Microglia ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Alzheimer’s disease (AD) features progressive neurodegeneration and microglial activation that results in dementia and cognitive decline. The release of soluble amyloid (Aβ) oligomers into the extracellular space is an early feature of AD pathology. This can promote excitotoxicity and microglial activation. Microglia can adopt several activation states with various functional outcomes. Protective microglial activation states have been identified in response to Aβ plaque pathology in vivo. However, the role of microglia and immune mediators in neurotoxicity induced by soluble Aβ oligomers is unclear. Further, there remains a need to identify druggable molecular targets that promote protective microglial states to slow or prevent the progression of AD. Methods Hippocampal entorhinal brain slice culture (HEBSC) was employed to study mechanisms of Aβ1−42 oligomer-induced neurotoxicity as well as the role of microglia. The roles of glutamate hyperexcitation and immune signaling in Aβ-induced neurotoxicity were assessed using MK801 and neutralizing antibodies to the TNF-related apoptosis-inducing ligand (TRAIL) respectively. Microglial activation state was manipulated using Gi-hM4di designer receptor exclusively activated by designer drugs (DREADDs), microglial depletion with the colony-stimulating factor 1 receptor (CSF1R) antagonist PLX3397, and microglial repopulation (PLX3397 withdrawal). Proteomic changes were assessed by LC-MS/MS in microglia isolated from control, repopulated, or Aβ-treated HEBSCs. Results Neurotoxicity induced by soluble Aβ1−42 oligomers involves glutamatergic hyperexcitation caused by the proinflammatory mediator and death receptor ligand TRAIL. Microglia were found to have the ability to both promote and restrain Aβ-induced toxicity. Induction of microglial Gi-signaling with hM4di to prevent pro-inflammatory activation blunted Aβ neurotoxicity, while microglial depletion with CSF1R antagonism worsened neurotoxicity caused by Aβ as well as TRAIL. HEBSCs with repopulated microglia, however, showed a near complete resistance to Aβ-induced neurotoxicity. Comparison of microglial proteomes revealed that repopulated microglia have a baseline anti-inflammatory and trophic phenotype with a predicted pathway activation that is nearly opposite that of Aβ-exposed microglia. mTORC2 and IRF7 were identified as potential targets for intervention. Conclusion Microglia are key mediators of both protection and neurodegeneration in response to Aβ. Polarizing microglia toward a protective state could be used as a preventative strategy against Aβ-induced neurotoxicity.
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- 2024
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5. Simultaneous screening of overexpressed genes in breast cancer for oncogenic drivers and tumor dependencies
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Adaobi Mofunanya, Eleanor R. Cameron, Christian J. Braun, Frank Celeste, Xiaoyu Zhao, Michael T. Hemann, Kenneth L. Scott, Jinyu Li, and Scott Powers
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Medicine ,Science - Abstract
Abstract There are hundreds of genes typically overexpressed in breast cancer cells and it's often assumed that their overexpression contributes to cancer progression. However, the precise proportion of these overexpressed genes contributing to tumorigenicity remains unclear. To address this gap, we undertook a comprehensive screening of a diverse set of seventy-two genes overexpressed in breast cancer. This systematic screening evaluated their potential for inducing malignant transformation and, concurrently, assessed their impact on breast cancer cell proliferation and viability. Select genes including ALDH3B1, CEACAM5, IL8, PYGO2, and WWTR1, exhibited pronounced activity in promoting tumor formation and establishing gene dependencies critical for tumorigenicity. Subsequent investigations revealed that CEACAM5 overexpression triggered the activation of signaling pathways involving β-catenin, Cdk4, and mTOR. Additionally, it conferred a growth advantage independent of exogenous insulin in defined medium and facilitated spheroid expansion by inducing multiple layers of epithelial cells while preserving a hollow lumen. Furthermore, the silencing of CEACAM5 expression synergized with tamoxifen-induced growth inhibition in breast cancer cells. These findings underscore the potential of screening overexpressed genes for both oncogenic drivers and tumor dependencies to expand the repertoire of therapeutic targets for breast cancer treatment.
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- 2024
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6. A program for real-time surveillance of SARS-CoV-2 genetics
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Hayden N. Brochu, Kuncheng Song, Qimin Zhang, Qiandong Zeng, Adib Shafi, Matthew Robinson, Jake Humphrey, Bobbi Croy, Lydia Peavy, Minoli Perera, Scott Parker, John Pruitt, Jason Munroe, Rama Ghatti, Thomas J. Urban, Ayla B. Harris, David Alfego, Brian Norvell, Michael Levandoski, Brian Krueger, Jonathan D. Williams, Deborah Boles, Melinda B. Nye, Suzanne E. Dale, Michael Sapeta, Christos J. Petropoulos, Jonathan Meltzer, Marcia Eisenberg, Oren Cohen, Stanley Letovsky, and Lakshmanan K. Iyer
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Medicine ,Science - Abstract
Abstract The COVID-19 pandemic brought forth an urgent need for widespread genomic surveillance for rapid detection and monitoring of emerging SARS-CoV-2 variants. It necessitated design, development, and deployment of a nationwide infrastructure designed for sequestration, consolidation, and characterization of patient samples that disseminates de-identified information to public authorities in tight turnaround times. Here, we describe our development of such an infrastructure, which sequenced 594,832 high coverage SARS-CoV-2 genomes from isolates we collected in the United States (U.S.) from March 13th 2020 to July 3rd 2023. Our sequencing protocol (‘Virseq’) utilizes wet and dry lab procedures to generate mutation-resistant sequencing of the entire SARS-CoV-2 genome, capturing all major lineages. We also characterize 379 clinically relevant SARS-CoV-2 multi-strain co-infections and ensure robust detection of emerging lineages via simulation. The modular infrastructure, sequencing, and analysis capabilities we describe support the U.S. Centers for Disease Control and Prevention national surveillance program and serve as a model for rapid response to emerging pandemics at a national scale.
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- 2024
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7. Putting error bars on density functional theory
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Simuck F. Yuk, Irmak Sargin, Noah Meyer, Jaron T. Krogel, Scott P. Beckman, and Valentino R. Cooper
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Medicine ,Science - Abstract
Abstract Predicting the error in density functional theory (DFT) calculations due to the choice of exchange–correlation (XC) functional is crucial to the success of DFT, but currently, there are limited options to estimate this a priori. This is particularly important for high-throughput screening of new materials. In this work, the structure and elastic properties of binary and ternary oxides are computed using four XC functionals: LDA, PBE-GGA, PBEsol, and vdW-DF with C09 exchange. To analyze the systemic errors inherent to each XC functional, we employed materials informatics methods to predict the expected errors. The predicted errors were also used to better the DFT-predicted lattice parameters. Our results emphasize the link between the computed errors and the electron density and hybridization errors of a functional. In essence, these results provide “error bars” for choosing a functional for the creation of high-accuracy, high-throughput datasets as well as avenues for the development of XC functionals with enhanced performance, thereby enabling the accelerated discovery and design of new materials.
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- 2024
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8. Aberrant mitochondrial DNA synthesis in macrophages exacerbates inflammation and atherosclerosis
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Niranjana Natarajan, Jonathan Florentin, Ebin Johny, Hanxi Xiao, Scott Patrick O’Neil, Liqun Lei, Jixing Shen, Lee Ohayon, Aaron R. Johnson, Krithika Rao, Xiaoyun Li, Yanwu Zhao, Yingze Zhang, Sina Tavakoli, Sruti Shiva, Jishnu Das, and Partha Dutta
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Science - Abstract
Abstract There is a large body of evidence that cellular metabolism governs inflammation, and that inflammation contributes to the progression of atherosclerosis. However, whether mitochondrial DNA synthesis affects macrophage function and atherosclerosis pathology is not fully understood. Here we show, by transcriptomic analyzes of plaque macrophages, spatial single cell transcriptomics of atherosclerotic plaques, and functional experiments, that mitochondrial DNA (mtDNA) synthesis in atherosclerotic plaque macrophages are triggered by vascular cell adhesion molecule 1 (VCAM-1) under inflammatory conditions in both humans and mice. Mechanistically, VCAM-1 activates C/EBPα, which binds to the promoters of key mitochondrial biogenesis genes - Cmpk2 and Pgc1a. Increased CMPK2 and PGC-1α expression triggers mtDNA synthesis, which activates STING-mediated inflammation. Consistently, atherosclerosis and inflammation are less severe in Apoe −/− mice lacking Vcam1 in macrophages. Downregulation of macrophage-specific VCAM-1 in vivo leads to decreased expression of LYZ1 and FCOR, involved in STING signalling. Finally, VCAM-1 expression in human carotid plaque macrophages correlates with necrotic core area, mitochondrial volume, and oxidative damage to DNA. Collectively, our study highlights the importance of macrophage VCAM-1 in inflammation and atherogenesis pathology and proposes a self-acerbating pathway involving increased mtDNA synthesis.
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- 2024
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9. Polygenic liability for anxiety in association with comorbid anxiety in multiple sclerosis
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Kaarina Kowalec, Arvid Harder, Casandra Dolovich, Kathryn C. Fitzgerald, Amber Salter, Yi Lu, Charles N. Bernstein, James M. Bolton, Gary Cutter, John D. Fisk, Joel Gelernter, Lesley A. Graff, Sara Hägg, Carol A. Hitchon, Daniel F. Levey, Fred D. Lublin, Kyla A. McKay, Scott Patten, Amit Patki, Murray B. Stein, Hemant K. Tiwari, Jerry S. Wolinsky, and Ruth A. Marrie
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Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Objective Comorbid anxiety occurs often in MS and is associated with disability progression. Polygenic scores offer a possible means of anxiety risk prediction but often have not been validated outside the original discovery population. We aimed to investigate the association between the Generalized Anxiety Disorder 2‐item scale polygenic score with anxiety in MS. Methods Using a case–control design, participants from Canadian, UK Biobank, and United States cohorts were grouped into cases (MS/comorbid anxiety) or controls (MS/no anxiety, anxiety/no immune disease or healthy). We used multiple anxiety measures: current symptoms, lifetime interview‐diagnosed, and lifetime self‐report physician‐diagnosed. The polygenic score was computed for current anxiety symptoms using summary statistics from a previous genome‐wide association study and was tested using regression. Results A total of 71,343 individuals of European genetic ancestry were used: Canada (n = 334; 212 MS), UK Biobank (n = 70,431; 1,390 MS), and the USA (n = 578 MS). Meta‐analyses identified that in MS, each 1‐SD increase in the polygenic score was associated with ~50% increased odds of comorbid moderate anxious symptoms compared to those with less than moderate anxious symptoms (OR: 1.47, 95% CI: 1.09–1.99). We found a similar direction of effects in the other measures. MS had a similar anxiety genetic burden compared to people with anxiety as the index disease. Interpretation Higher genetic burden for anxiety was associated with significantly increased odds of moderate anxious symptoms in MS of European genetic ancestry which did not differ from those with anxiety and no comorbid immune disease. This study suggests a genetic basis for anxiety in MS.
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- 2024
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10. Prevalence and predictors of postpartum depression and generalized anxiety symptoms among women who delivered at a tertiary hospital in Mwanza Tanzania: a cross-sectional study
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Matiko Mwita, Scott Patten, and Deborah Dewey
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Postpartum women ,Postnatal ,Mental health ,Depression ,Anxiety ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Abstract Background Postpartum depression and anxiety are major public health concerns that affect 3–39% of women after childbearing and can adversely affect maternal and child health. Most studies have investigated postpartum depression and anxiety and their associated factors among women 4–12 weeks after delivery. There is a scarcity of research among women immediately after delivery from low- and middle-income countries, the gap this study aimed to fill. Methods A descriptive cross-sectional study was conducted among 386 postpartum women within one week after delivery. The Edinburg Postnatal Depression Scale was used to assess depressive symptoms and the Generalized Anxiety Disorder − 7 scale was used to screen for symptoms of generalized anxiety disorder. Participants were systematically selected from the postnatal wards and interviewed by trained research assistants from November 2019 to March 2020. Results Using standard cut points, the prevalence of depressive and anxiety symptoms was 25.39%, and 37.31% respectively. Having a baby with a weight of 2.5 kgs or more and having partner support were associated with decreased odds of both depression and anxiety symptoms. In contrast, complications during delivery, caesarian section, marital status, and partner violence, were associated with increased odds of depressive and anxiety symptoms post-delivery. Conclusion There was a high prevalence of postpartum depression and anxiety symptoms among the study participants in the first week post-delivery, with delivery complications and outcome and psychosocial supports identified as associated factors for depression and anxiety symptoms. These findings highlight the need for early screening to identify those at risk for appropriate intervention.
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- 2024
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11. Genetic determinants of host- and virus-derived insertions for hepatitis E virus replication
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Michael Hermann Wißing, Toni Luise Meister, Maximilian Klaus Nocke, André Gömer, Mejrema Masovic, Leonard Knegendorf, Yannick Brüggemann, Verian Bader, Anindya Siddharta, Claus-Thomas Bock, Alexander Ploss, Scott P. Kenney, Konstanze F. Winklhofer, Patrick Behrendt, Heiner Wedemeyer, Eike Steinmann, and Daniel Todt
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Science - Abstract
Abstract Hepatitis E virus (HEV) is a long-neglected RNA virus and the major causative agent of acute viral hepatitis in humans. Recent data suggest that HEV has a very heterogeneous hypervariable region (HVR), which can tolerate major genomic rearrangements. In this study, we identify insertions of previously undescribed sequence snippets in serum samples of a ribavirin treatment failure patient. These insertions increase viral replication while not affecting sensitivity towards ribavirin in a subgenomic replicon assay. All insertions contain a predicted nuclear localization sequence and alanine scanning mutagenesis of lysine residues in the HVR influences viral replication. Sequential replacement of lysine residues additionally alters intracellular localization in a fluorescence dye-coupled construct. Furthermore, distinct sequence patterns outside the HVR are identified as viral determinants that recapitulate the enhancing effect. In conclusion, patient-derived insertions can increase HEV replication and synergistically acting viral determinants in and outside the HVR are described. These results will help to understand the underlying principles of viral adaptation by viral- and host-sequence snatching during the clinical course of infection.
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- 2024
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12. Diversity of Diptera and their parasitoids associated with Inga vera Willd. (1806) (Fabaceae) with new host record in Minas Gerais, Brazil
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Tamires Camila Talamonte de Oliveira, Lucas Roberto Pereira Gomes, Scott Patrick Egan, Pedro Ferreira Pinto Brandão-Dias, Alejandro Zaldívar Riverón, and Lucas Del Bianco Faria
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Flies. Host plant. Fruit flies. Lance flies. Gall midge ,Agriculture (General) ,S1-972 ,Environmental sciences ,GE1-350 - Abstract
Diptera belonging to four different families, as well as four associated parasitoids were reared from fruits of Inga vera Willd. (Fabaceae) in Lavras, Minas Gerais, southeast Brazil. We collected 450 fruits from five trees of I. vera between 2020 and 2021 in various localities situated within the University Federal of Lavras. We reared specimens belonging to four different dipteran families: Anastrepha distincta Greene (Tephritidae), Asteromyia sp. (Cecidomyiidae), Drosophila zottii Vilela (Drosophilidae), and Neosilba pendula (Bezzi) (Lonchaeidae). Lopheucoilasp.(Hymenoptera: Figitidae) probably is a parasitoid of N. pendulawhereas Eupelmus sp. (Hymenoptera: Eupelmidae), and two species of Sycophila (Hymenoptera, Eurytomidae) appear to be parasitoids of Asteromyia sp.. We additionally conducted molecular characterization using the DNA barcoding locus for the majority of the species reared in this study. This study provides valuable insights into the biology and ecology of frugivorous flies in Brazil, and sheds light on potential biological control agents, enabling better management practices.
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- 2024
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13. Predictors of disease outbreaks at continental-scale in the African region: Insights and predictions with geospatial artificial intelligence using earth observations and routine disease surveillance data
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Scott Pezanowski, Etien Luc Koua, Joseph C Okeibunor, and Abdou Salam Gueye
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Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Objectives Our research adopts computational techniques to analyze disease outbreaks weekly over a large geographic area while maintaining local-level analysis by incorporating relevant high-spatial resolution cultural and environmental datasets. The abundance of data about disease outbreaks gives scientists an excellent opportunity to uncover patterns in disease spread and make future predictions. However, data over a sizeable geographic area quickly outpace human cognition. Our study area covers a significant portion of the African continent (about 17,885,000 km 2 ). The data size makes computational analysis vital to assist human decision-makers. Methods We first applied global and local spatial autocorrelation for malaria, cholera, meningitis, and yellow fever case counts. We then used machine learning to predict the weekly presence of these diseases in the second-level administrative district. Lastly, we used machine learning feature importance methods on the variables that affect spread. Results Our spatial autocorrelation results show that geographic nearness is critical but varies in effect and space. Moreover, we identified many interesting hot and cold spots and spatial outliers. The machine learning model infers a binary class of cases or none with the best F 1 score of 0.96 for malaria. Machine learning feature importance uncovered critical cultural and environmental factors affecting outbreaks and variations between diseases. Conclusions Our study shows that data analytics and machine learning are vital to understanding and monitoring disease outbreaks locally across vast areas. The speed at which these methods produce insights can be critical during epidemics and emergencies.
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- 2024
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14. Fear of Crime and Anti-Refugee Sentiments: Evidence from Canada
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Scott Pruysers, Kiran Banerjee, and Julie Blais
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fear of crime ,refugees ,prejudice ,Canada ,Communities. Classes. Races ,HT51-1595 - Abstract
Many states have witnessed growing xenophobia and hostility towards refugees alongside the framing of refugees as a serious security or criminal threat in public discourse. Making use of an original cross-national survey of adults in Canada, this article explores the link between fear of crime and negative views of refugees. Its results reveal that even after controlling for alternative explanations, people with more fear of crime are significantly more likely to express anti-refugee sentiments. These results have implications for understanding ongoing challenges in maintaining domestic support for refugee protection and the importance of dispelling myths that refugees are sources of criminality.
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- 2024
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15. The GPI sidechain of Toxoplasma gondii inhibits parasite pathogenesis
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Julia A. Alvarez, Elisabet Gas-Pascual, Sahil Malhi, Juan C. Sánchez-Arcila, Ferdinand Ngale Njume, Hanke van der Wel, Yanlin Zhao, Laura García-López, Gabriella Ceron, Jasmine Posada, Scott P. Souza, George S. Yap, Christopher M. West, and Kirk D. C. Jensen
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GPI ,GIPL ,GPI sidechain ,mass spectrometry ,PIGJ ,PIGE ,Microbiology ,QR1-502 - Abstract
ABSTRACT Glycosylphosphatidylinositols (GPIs) are highly conserved anchors for eukaryotic cell surface proteins. The apicomplexan parasite, Toxoplasma gondii, is a widespread intracellular parasite of warm-blooded animals whose plasma membrane is covered with GPI-anchored proteins, and free GPIs called GIPLs. While the glycan portion is conserved, species differ in sidechains added to the triple mannose core. The functional significance of the Glcα1,4GalNAcβ1- sidechain reported in Toxoplasma gondii has remained largely unknown without understanding its biosynthesis. Here we identify and disrupt two glycosyltransferase genes and confirm their respective roles by serology and mass spectrometry. Parasites lacking the sidechain on account of deletion of the first glycosyltransferase, PIGJ, exhibit increased virulence during primary and secondary infections, suggesting it is an important pathogenesis factor. Cytokine responses, antibody recognition of GPI-anchored SAGs, and complement binding to PIGJ mutants are intact. By contrast, the scavenger receptor CD36 shows enhanced binding to PIGJ mutants, potentially explaining a subtle tropism for macrophages detected early in infection. Galectin-3, which binds GIPLs, exhibits an enhancement of binding to PIGJ mutants, and the protection of galectin-3 knockout mice from lethality suggests that Δpigj parasite virulence in this context is sidechain dependent. Parasite numbers are not affected by Δpigj early in the infection in wild-type mice, suggesting a breakdown of tolerance. However, increased tissue cysts in the brains of mice infected with Δpigj parasites indicate an advantage over wild-type strains. Thus, the GPI sidechain of T. gondii plays a crucial and diverse role in regulating disease outcomes in the infected host.IMPORTANCEThe functional significance of sidechain modifications to the glycosylphosphatidylinositol (GPI) anchor in parasites has yet to be determined because the glycosyltransferases responsible for these modifications have not been identified. Here we present identification and characterization of both Toxoplasmsa gondii GPI sidechain-modifying glycosyltransferases. Removal of the glycosyltransferase that adds the first GalNAc to the sidechain results in parasites without a sidechain on the GPI, and increased host susceptibility to infection. Loss of the second glycosyltransferase results in a sidechain with GalNAc alone, and no glucose added, and has negligible effect on disease outcomes. This indicates GPI sidechains are fundamental to host-parasite interactions.
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- 2024
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16. Minding the gap: a sex difference in young infants’ mental rotation through thirty degrees of arc
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David S. Moore, Dawn Michele Moore, and Scott P. Johnson
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mental rotation ,spatial cognition ,infant development ,sex differences ,infant cognitive development ,Psychology ,BF1-990 - Abstract
Mental rotation (MR) is an important feature of spatial cognition invoking mental imagery of an object’s appearance when viewed from a new orientation. Prior studies have revealed evidence of MR in infants, including a sex difference similar to that detected in older populations. Some of these studies used visual habituation methods whereby infants were familiarized with an object rotating through a 240° angle, followed by test trials showing either the habituation object or a mirror image object rotating through the previously unseen 120° angle. Significantly longer looking at either of these objects was taken to reflect infants’ ability to recognize the habituation object even when seen from a novel viewpoint, suggesting the capacity for MR. However, these infants’ responses could, in theory, be explained with reference to perceptual discrimination rather than MR, because the views of the habituation and test objects were very similar in some video frames. In the current study, we observed a diverse population of 5-month-olds (24 females, 24 males) for evidence of MR through 30° of arc. In this more challenging test, our stimuli left a 30° gap angle between critical video frames representing the habituation and test objects. Consistent with earlier reports, we found that relative to female infants, male infants looked significantly longer at the mirror image test stimulus immediately following habituation. These results add to an emerging consensus that some young infants are capable of MR, and that male and female infants on average behave differently in this type of MR task.
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- 2024
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17. Adaptive Governance: Empowering Data Sharing for Public Health Impact - Insights from North Carolina Department of Health and Human Services
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Amy Hawn Nelson, Paul Hogle, Sharon Zanti, Scott Proescholdbell, and Jessie Tenenbaum
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Demography. Population. Vital events ,HB848-3697 - Abstract
Objective and Approach At the 2022 IPDLN Conference, we presented work led by the North Carolina Department of Health and Human Services (NCDHSS), in partnership with university-based researchers, to build legal and ethical processes for routine data sharing. This session provides significant updates on the methods, results, and implications of these efforts–namely, that NCDHHS implemented an enterprise-wide data governance process and a legal framework that has enabled timely, impactful use of cross-sector data. We relied on Participatory Action Research and Deliberative Dialogue methods to engage a diverse range of partners in a data landscape overview and the co-creation of new data sharing processes that better enables the enterprise to adapt to a changing world. Results Four key actions were taken as a result of the participatory research process: NCDHHS developed a data strategy, created a data sharing guidebook, staffed their Data Office, and implemented a new legal framework. In addition to describing how these actions support data use across a large US state health and human services agency, we provide three use cases demonstrating the impact of this work. Conclusions Establishing routine data sharing presents legal, technical, and cultural challenges, particularly in large agencies. Through a collaborative, participatory approach, the NCDHHS successfully established enterprise-wide data governance and a legal framework to support data-driven policymaking and, ultimately, improve health outcomes for residents. Implications This research presents a successful, actionable, and replicable framework for developing and implementing processes to support intradepartmental data access, linkage, and use.
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- 2024
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18. A Zoonotic Strain of Rocahepevirus ratti Hepatitis E Virus Does Not Replicate Efficiently within Human Placental JEG-3 Cells
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Kush Kumar Yadav, Jacob D. Hofstetter, and Scott P. Kenney
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hepatitis E ,replication ,placental cells ,infection ,Animal biochemistry ,QP501-801 ,Veterinary medicine ,SF600-1100 ,Zoology ,QL1-991 - Abstract
Paslahepevirus balayani and Rocahepevirus ratti are genetically diverse species of hepatitis E virus [HEV]. Previously, only members of the Paslahepevirus genus were known to infect humans but recently some Rocahepevirus members have been found to be infectious to both immunocompromised and immunocompetent humans. Paslahepevirus balayani genotypes (gt) 1, 2, and 4 are known for their detrimental effects during pregnancy, causing pregnancy-related disorders. Recent findings have demonstrated the ability of Paslahepevirus balayani gt3 to replicate within placental cell lines, suggesting a direct effect on the placenta and fetus. To study whether zoonotic rat HEV strains possess a similar human-host placental tropism, we utilized JEG-3 cells to understand the replicative ability of an infectious clone of a recently reported strain of Rocahepevirus ratti, the LCK-3110 strain. Infectious cDNA clones of Pasla-, Avi-, and Rocahepevirus were transcribed and then, transduced into JEG-3 cells. Cells were harvested, and cell lysates were used for testing infectivity. Five days post-transfection or after inoculation onto naive HepG2/C3A cells, the cells were analyzed for infection. Replication in transduced JEG-3 cells and the infection potential in HepG2/C3A cells were assessed via an indirect immunofluorescence assay and a flow-cytometry assay. We found that the Rocahepevirus ratti LCK-3110 strain did not have efficient replication in JEG-3 cell cultures.
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- 2024
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19. Species delimitation, discovery and conservation in a tiger beetle species complex despite discordant genetic data
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Daniel P. Duran, Robert A. Laroche, Stephen J. Roman, William Godwin, David P. Herrmann, Ethan Bull, and Scott P. Egan
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Medicine ,Science - Abstract
Abstract In an age of species declines, delineating and discovering biodiversity is critical for both taxonomic accuracy and conservation. In recent years, there has been a movement away from using exclusively morphological characters to delineate and describe taxa and an increase in the use of molecular markers to describe diversity or through integrative taxonomy, which employs traditional morphological characters, as well as genetic or other data. Tiger beetles are charismatic, of conservation concern, and much work has been done on the morphological delineation of species and subspecies, but few of these taxa have been tested with genetic analyses. In this study, we tested morphologically based taxonomic hypotheses of polymorphic tiger beetles in the Eunota circumpicta (LaFerté-Sénectère, 1841) species complex using multilocus genomic and mtDNA analyses. We find multiple cryptic species within the previous taxonomic concept of Eunota circumpicta, some of which were historically recognized as subspecies. We found that the mtDNA and genomic datasets did not identify the same taxonomic units and that the mtDNA was most at odds with all other genetic and morphological patterns. Overall, we describe new cryptic diversity, which raises important conservation concerns, and provide a working example for testing species and subspecies validity despite discordant data.
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- 2024
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20. Anthropometric Analysis of Frontal and Orbital Dimorphism: Quantifying Population Averages and Variability in Cis-Gender Men and Women
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Meagan Wu, MA, Lauren Salinero, MD, Ashley Chang, BA, Jonathan Sussman, BS, Benjamin Massenburg, MD, Mariana Almeida, MD, Derek Steinbacher, MD, DMD, Jesse Taylor, MD, Jordan Swanson, MD, MSc, and Scott Paul Bartlett, MD
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Surgery ,RD1-811 - Published
- 2024
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21. Nucleocapsid protein-specific monoclonal antibodies protect mice against Crimean-Congo hemorrhagic fever virus
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Aura R. Garrison, Vanessa Moresco, Xiankun Zeng, Curtis R. Cline, Michael D. Ward, Keersten M. Ricks, Scott P. Olschner, Lisa H. Cazares, Elif Karaaslan, Collin J. Fitzpatrick, Éric Bergeron, Scott D. Pegan, and Joseph W. Golden
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Science - Abstract
Abstract Crimean-Congo hemorrhagic fever virus (CCHFV) is a WHO priority pathogen. Antibody-based medical countermeasures offer an important strategy to mitigate severe disease caused by CCHFV. Most efforts have focused on targeting the viral glycoproteins. However, glycoproteins are poorly conserved among viral strains. The CCHFV nucleocapsid protein (NP) is highly conserved between CCHFV strains. Here, we investigate the protective efficacy of a CCHFV monoclonal antibody targeting the NP. We find that an anti-NP monoclonal antibody (mAb-9D5) protected female mice against lethal CCHFV infection or resulted in a significant delay in mean time-to-death in mice that succumbed to disease compared to isotype control animals. Antibody protection is independent of Fc-receptor functionality and complement activity. The antibody bound NP from several CCHFV strains and exhibited robust cross-protection against the heterologous CCHFV strain Afg09-2990. Our work demonstrates that the NP is a viable target for antibody-based therapeutics, providing another direction for developing immunotherapeutics against CCHFV.
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- 2024
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22. Hyperpolarized 129Xe MRI and spectroscopy of gas-exchange abnormalities in bilateral lung transplant recipients
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Austin Simmons, MS, David Mummy, PhD, Shuo Zhang, PhD, Suphachart Leewiwatwong, BS, Scott Palmer, MD, Bastiaan Driehuys, PhD, and Hakim Azfar Ali, MD
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lung transplant ,CLAD ,functional lung imaging ,129Xe MRI ,spectroscopy ,Surgery ,RD1-811 ,Specialties of internal medicine ,RC581-951 - Abstract
Background: There is currently no sensitive, noninvasive method of screening for chronic lung allograft dysfunction (CLAD), the primary barrier to long-term survival after lung transplant. Conventional pulmonary function testing is imprecise absent a sustained decline. Hyperpolarized 129Xe magnetic resonance imaging (MRI) is a sensitive tool for 3-dimensional imaging of regional pulmonary ventilation and gas-exchange abnormalities and may aid in early detection of CLAD. Methods: Adult patients, post bilateral lung transplant, were screened for CLAD based on the International Society for Heart and Lung Transplantation criteria. Those with established allografts (n = 10) underwent 129Xe gas-exchange MRI and spectroscopy and were compared to results from 16 young healthy volunteers and 16 age-matched healthy volunteers. One lung transplant recipient was excluded from the final data analysis due to a concurrent lung infection found incidentally after MRI. Imaging provided quantitative maps of the ventilation defect percent (VDP), membrane high percent, and red blood cell (RBC) defect percent. Spectroscopy yielded RBC/membrane ratio, oxygenation-dependent RBC shift, and RBC oscillation amplitude. Results: The analysis included 9 lung transplant recipients, 7 with CLAD and 2 without. CLAD patients exhibited VDP values consistent with their forced expiratory volume in 1 second (FEV1) decline (rho = 0.79, p = 0.048). Hemoglobin-corrected RBC transfer was reduced in all transplant recipients vs young healthy controls (median [first quartile-third quartile] of 13% [9%-22%] vs 2% [1.75%-3%], p = 0.003) as well as vs age-matched controls (5.5% [2%-9.25%], p = 0.039). Spectroscopy demonstrated reduced RBC/membrane signal (0.26 [0.17-0.31] vs 0.62 [0.50-0.66], p
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- 2024
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23. Comparison of race-specific and race-neutral spirometry equations on the classification of restrictive lung physiology, interstitial lung disease, and lung transplant referral eligibility
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Daniel M. Guidot, MD, MPH, Mackenzie Wood, Emily Poehlein, MB, Scott Palmer, MD, MHS, and Lisa McElroy, MD, MS, FACS
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interstitial lung disease ,lung transplantation ,racial disparities ,spirometry ,race-specific reference equations ,Surgery ,RD1-811 ,Specialties of internal medicine ,RC581-951 - Abstract
Background: Race-specific reference equations for spirometry, including forced vital capacity (FVC), are under scrutiny in interstitial lung disease (ILD). Their influence on ILD and transplant decision-making warrants study. Methods: We performed a retrospective cohort study of adults with FVC measurements at Duke University Medical Center between October 1, 2014 and February 1, 2023. Using Global Lung Initiative 2012 reference equations, we compared how race-specific and race-neutral equations classified FVC with potential restrictive physiology (z-score
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- 2024
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24. Out-of-hours emergent surgery for degenerative spinal disease in Canada: a retrospective cohort study from a national registryResearch in context
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Charlotte Dandurand, Pedram Farimani Laghaei, Charles G. Fisher, Tamir Ailon, Marcel Dvorak, Brian K. Kwon, Nicolas Dea, Raphaële Charest-Morin, Scott Paquette, and John T. Street
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Degenerative ,Spine ,Surgery ,Trends ,Public aspects of medicine ,RA1-1270 - Abstract
Summary: Background: Spinal degenerative disease represents a growing burden on our healthcare system, yet little is known about longitudinal trends in access and care. Our goal was to provide an essential portrait of surgical volume trends for degenerative spinal pathologies within Canada. Methods: The Canadian Institute for Health Information (CIHI) database was used to identify all patients receiving surgery for a degenerative spinal condition from 2006 to 2019. Trends in number of interventions, unscheduled vs scheduled hospitalizations, in-hours vs out-of-hours interventions, resource utilization and adverse events were analyzed retrospectively using linear regression models. Confidence intervals were reported in the expected count ratio scale (CR). Findings: A total of 338,629 spinal interventions and 256,360 hospitalizations between 2006 and 2019 were analyzed. The mean and SD of the annual mean age of patients was 55.5 (SD 1.6) for elective hospitalizations and 55.6 (SD 1.6) for emergent hospitalizations. The proportion of female patients was 47.8% (91,789/192,027) for elective hospitalizations and 41.4% (26,633/64,333) for emergent hospitalizations. Elective hospitalizations increased an average of 2.0% per year, with CR = 1.020 (95% CI 1.017–1.023, p
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- 2024
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25. Single-fly genome assemblies fill major phylogenomic gaps across the Drosophilidae Tree of Life.
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Bernard Y Kim, Hannah R Gellert, Samuel H Church, Anton Suvorov, Sean S Anderson, Olga Barmina, Sofia G Beskid, Aaron A Comeault, K Nicole Crown, Sarah E Diamond, Steve Dorus, Takako Fujichika, James A Hemker, Jan Hrcek, Maaria Kankare, Toru Katoh, Karl N Magnacca, Ryan A Martin, Teruyuki Matsunaga, Matthew J Medeiros, Danny E Miller, Scott Pitnick, Michele Schiffer, Sara Simoni, Tessa E Steenwinkel, Zeeshan A Syed, Aya Takahashi, Kevin H-C Wei, Tsuya Yokoyama, Michael B Eisen, Artyom Kopp, Daniel Matute, Darren J Obbard, Patrick M O'Grady, Donald K Price, Masanori J Toda, Thomas Werner, and Dmitri A Petrov
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Biology (General) ,QH301-705.5 - Abstract
Long-read sequencing is driving rapid progress in genome assembly across all major groups of life, including species of the family Drosophilidae, a longtime model system for genetics, genomics, and evolution. We previously developed a cost-effective hybrid Oxford Nanopore (ONT) long-read and Illumina short-read sequencing approach and used it to assemble 101 drosophilid genomes from laboratory cultures, greatly increasing the number of genome assemblies for this taxonomic group. The next major challenge is to address the laboratory culture bias in taxon sampling by sequencing genomes of species that cannot easily be reared in the lab. Here, we build upon our previous methods to perform amplification-free ONT sequencing of single wild flies obtained either directly from the field or from ethanol-preserved specimens in museum collections, greatly improving the representation of lesser studied drosophilid taxa in whole-genome data. Using Illumina Novaseq X Plus and ONT P2 sequencers with R10.4.1 chemistry, we set a new benchmark for inexpensive hybrid genome assembly at US $150 per genome while assembling genomes from as little as 35 ng of genomic DNA from a single fly. We present 183 new genome assemblies for 179 species as a resource for drosophilid systematics, phylogenetics, and comparative genomics. Of these genomes, 62 are from pooled lab strains and 121 from single adult flies. Despite the sample limitations of working with small insects, most single-fly diploid assemblies are comparable in contiguity (>1 Mb contig N50), completeness (>98% complete dipteran BUSCOs), and accuracy (>QV40 genome-wide with ONT R10.4.1) to assemblies from inbred lines. We present a well-resolved multi-locus phylogeny for 360 drosophilid and 4 outgroup species encompassing all publicly available (as of August 2023) genomes for this group. Finally, we present a Progressive Cactus whole-genome, reference-free alignment built from a subset of 298 suitably high-quality drosophilid genomes. The new assemblies and alignment, along with updated laboratory protocols and computational pipelines, are released as an open resource and as a tool for studying evolution at the scale of an entire insect family.
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- 2024
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26. Theileria orientalis Ikeda infection does not negatively impact growth performance or breeding soundness exam results in young beef bulls at bull test stations
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Sierra R. Guynn, Scott P. Greiner, John F. Currin, S. Michelle Todd, Alphonce Assenga, Laura L. Hungerford, and Kevin K. Lahmers
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beef cattle ,Theileria orientalis (Ikeda) ,average daily gain (ADG) ,breeding soundness evaluation (BSE) ,bull ,Veterinary medicine ,SF600-1100 - Abstract
IntroductionTheileria orientalis Ikeda genotype is an emerging cattle disease in the US. Since 2017, when T. orientalis Ikeda was discovered in beef cattle in two counties in Virginia, cattle infections have risen to include ~67% of Virginia counties and 14 states. Consistent with New Zealand studies, many infected herds in Virginia were >90% positive upon initial testing without overt evidence of infection. Central bull tests present a unique opportunity to study the effects of T. orientalis Ikeda infections, as bulls from multiple source herds are consolidated. The objective of this study was to determine if infection with T. orientalis Ikeda affected the average daily gain (ADG), adjusted yearling weight (AYW) and breeding soundness of bulls at two test stations in Virginia over a period of years.Materials and methodsThe bulls were fed and housed similarly to compare their growth performance and breeding soundness. For T. orientalis Ikeda testing, DNA was extracted from whole blood for quantitative polymerase chain reaction.ResultsThe number of bulls infected with T. orientalis Ikeda at initial delivery to the stations increased significantly over the years studied. Multivariable linear regression models, using Angus bulls from Virginia test stations, indicated no significant effect on ADG or AYW in bulls that became test positive during the test or were positive for the duration, compared to Angus bulls that were negative for the duration. At LOC A, the odds of passing a breeding soundness exam (BSE) were not significantly different for bulls that turned positive during the test or were positive for the duration, compared to bulls that were negative for the duration of the test. At LOC B, bulls that became positive during the test were 2.4 times more likely (95% CI: 1.165–4.995, p = 0.016) to pass their BSE compared to bulls that remained negative throughout the test.DiscussionWe do not suppose that an obscured infection of T. orientalis Ikeda is protective for bulls to pass a BSE. However, this study demonstrates an obscured infection of T. orientalis Ikeda does not negatively affect weight gain or achievement of a satisfactory BSE rating at the central bull test stations in Virginia.
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- 2024
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27. Toward AI-driven neuroepigenetic imaging biomarker for alcohol use disorder: A proof-of-concept study
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Tewodros Mulugeta Dagnew, Chieh-En J. Tseng, Chi-Hyeon Yoo, Meena M. Makary, Anna E. Goodheart, Robin Striar, Tyler N. Meyer, Anna K. Rattray, Leyi Kang, Kendall A. Wolf, Stephanie A. Fiedler, Darcy Tocci, Hannah Shapiro, Scott Provost, Eleanor Sultana, Yan Liu, Wei Ding, Ping Chen, Marek Kubicki, Shiqian Shen, Ciprian Catana, Nicole R. Zürcher, Hsiao-Ying Wey, Jacob M. Hooker, Roger D. Weiss, and Changning Wang
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addiction medicine ,neuroscience ,techniques in neuroscience ,artificial intelligence ,Science - Abstract
Summary: Alcohol use disorder (AUD) is a disorder of clinical and public health significance requiring novel and improved therapeutic solutions. Both environmental and genetic factors play a significant role in its pathophysiology. However, the underlying epigenetic molecular mechanisms that link the gene-environment interaction in AUD remain largely unknown. In this proof-of-concept study, we showed, for the first time, the neuroepigenetic biomarker capability of non-invasive imaging of class I histone deacetylase (HDAC) epigenetic enzymes in the in vivo brain for classifying AUD patients from healthy controls using a machine learning approach in the context of precision diagnosis. Eleven AUD patients and 16 age- and sex-matched healthy controls completed a simultaneous positron emission tomography-magnetic resonance (PET/MR) scan with the HDAC-binding radiotracer [11C]Martinostat. Our results showed lower HDAC expression in the anterior cingulate region in AUD. Furthermore, by applying a genetic algorithm feature selection, we identified five particular brain regions whose combined [11C]Martinostat relative standard uptake value (SUVR) features could reliably classify AUD vs. controls. We validate their promising classification reliability using a support vector machine classifier. These findings inform the potential of in vivo HDAC imaging biomarkers coupled with machine learning tools in the objective diagnosis and molecular translation of AUD that could complement the current diagnostic and statistical manual of mental disorders (DSM)-based intervention to propel precision medicine forward.
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- 2024
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28. Investigating How Nontariff Measures Impact the Turfgrass Seed Trade
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Scott Petty, Chengyan Yue, and Eric Watkins
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environment stringency ,extensive margin ,gravity model ,intensive margin ,product inspections ,Plant culture ,SB1-1110 - Abstract
Turfgrass seed, a living organism, is facing more stringent trade regulations compared with nonliving products. We applied multiple empirical approaches to explore the impact of these regulations on trade flows in grass seeds. We constructed a series of novel variables to measure these regulations, such as environment regulation stringency, pre-shipment inspections, market conditions, and product requirements. Our results showed that nontariff trade measures had substantial impacts on the trade of grass seeds. These measures sometimes worked as barriers to trade and at other times worked as catalysts for trade.
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- 2024
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29. The Expanded Forehead Flap for Resurfacing of Multi-unit Congenital Nevi of the Face
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Meagan Wu, MA, Matthew E. Pontell, MD, Benjamin B. Massenburg, MD, Jinggang J. Ng, MA, Dominic J. Romeo, MA, Jordan W. Swanson, MD, MSc, Jesse A. Taylor, MD, and Scott P. Bartlett, MD
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Surgery ,RD1-811 - Abstract
Summary:. The forehead flap is a timeless and robust reconstructive option for complex facial defects. In accordance with aesthetic subunit principles, it has traditionally been used to resurface defects affecting a single cervicofacial region, most commonly the nose or periorbital unit. In this article, we present three cases of congenital nevi treated with expanded forehead flap reconstruction of the nasal, periorbital, and cheek units in early childhood. This series demonstrates an approach that, while violating facial units, limits total scar burden and optimizes aesthetic and functional results. With precise staging and execution, this reconstructive technique allows for a single flap to resurface multi-unit defects in the pediatric population with excellent long-term results.
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- 2024
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30. From threat to opportunity: Hydrologic uncertainty regionalization across large domains
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Scott Pokorny, Tricia A. Stadnyk, Genevieve Ali, Andrew A.G. Tefs, and Stephen J. Déry
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Large-domain modeling ,Flow ,Uncertainty ,Ungauged basins ,Regionalization ,Physical geography ,GB3-5030 ,Geology ,QE1-996.5 - Abstract
Study region: The study was carried out in Northern Canada (90,000 km2) and Southern Canada (18,000 km2). These basins represent case studies with a larger application target of high latitude regions. Study focus: As model domains become large, ungauged basins are inevitably encountered, and basin heterogeneity increases. This study aims to develop the computationally frugal Model Agnostic Uncertainty Transfer (MAUT) method to regionalize an uncertainty analysis from a set of donor basins to a receiver. The goal is an evaluation of the MAUT method for regionalizing over sufficiently heterogeneous domains to be applicable to high latitude data sparse regions. New hydrological insights for the region: We propose the Model Agnostic Uncertainty Transfer (MAUT) method, a surrogate method to perform uncertainty analysis in large-domain modelling with a focus on high-latitude regions where data scarcity is especially severe. With the MAUT method, antecedent precipitation and simulated flow are related. Deviation from this relationship is assumed to represent modelling uncertainty and is quantified by quantile regression lines. These lines act as transfer functions requiring only antecedent precipitation to generate uncertainty bounds. The MAUT method requires uncertainty donors and a target receiver model. Key results suggest the method is relatively insensitive to precipitation dataset differences. Simulation length was the most sensitive input, with 15–20 years being ideal for reasonable results. Overall, the MAUT method is viable for high latitude domains.
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- 2024
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31. Reduced emergency department use among insured individuals receiving extended-release buprenorphine in a health system setting
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Bobbi Jo H. Yarborough, Scott P. Stumbo, Shannon L. Janoff, Erin M. Keast, Michael C. Leo, and Sarah J. Leitz
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Buprenorphine ,Extended-release injectable buprenorphine ,Medication for opioid use disorder ,Opioid use disorder ,Medicine - Abstract
Introduction: Extended-release buprenorphine (XR-Bup) is associated with reduced opioid use and opioid negative urine drug screens. Little is known about its use in outpatient addiction care provided within health systems. Methods: Individuals prescribed XR-Bup were identified from electronic health records; chart abstraction was conducted. Primary outcome was all-cause emergency department (ED) use. Secondary outcomes included ED use or inpatient stays for mental health or substance use, ED use for any other cause, discontinuation reasons, and drug substitution. Statistical comparisons used nonparametric tests from related samples (McNemar’s test and Wilcoxon matched pair tests) to test outcomes six months prior and 6 months following XR-Bup initiation. Results: 152 individuals had an XR-Bup order, 126 received >1 injection. Among those consistently insured 6 months prior to and following XR-Bup initiation (n=99), the mean number of injections following initiation was 3.95; one-third received 6 doses in the 6 months. The proportion of individuals using ED services for all causes declined (41% prior vs. 28% following XR-Bup initiation, p
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- 2024
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32. Tracheostomies for respiratory failure are associated with a high inpatient mortality: a potential trigger to reconsider goals of care
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Mackenzie Cook, Cameron Colbert, Aaron D Streblow, Scott P Sherry, and Konrad Dobbertin
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Surgery ,RD1-811 ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Introduction Acute care surgeons are frequently consulted for tracheostomy placement in the intensive care unit (ICU). Tracheostomy may facilitate ventilator weaning and improve physical comfort. Short-term outcomes after tracheostomy are not well studied. We hypothesize that a high proportion of ICU patients who underwent tracheostomy died prior to discharge. These data will help guide clinical decision-making at a key pivot point in care.Methods We identified 177 mixed ICU patients who received a tracheostomy for respiratory failure between January 2013 and December 2018. We excluded patients with trauma. Patient information was collected and comparisons made with univariable and multivariable statistics.Results Of the 177 patients who underwent a tracheostomy for respiratory failure, 45% were women, median age was 63 (51–71) years. Of this group 18% died prior to discharge, 63% were discharged to a care facility and only 16% discharged home. Compared with survivors, patients with tracheostomies who died during their admission were older, age 69 (64–76) versus 61 (49–71) years (p
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- 2024
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33. Tantalum pentoxide: a new material platform for high-performance dielectric metasurface optics in the ultraviolet and visible region
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Cheng Zhang, Lu Chen, Zhelin Lin, Junyeob Song, Danyan Wang, Moxin Li, Okan Koksal, Zi Wang, Grisha Spektor, David Carlson, Henri J. Lezec, Wenqi Zhu, Scott Papp, and Amit Agrawal
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Applied optics. Photonics ,TA1501-1820 ,Optics. Light ,QC350-467 - Abstract
Abstract Dielectric metasurfaces, composed of planar arrays of subwavelength dielectric structures that collectively mimic the operation of conventional bulk optical elements, have revolutionized the field of optics by their potential in constructing high-efficiency and multi-functional optoelectronic systems on chip. The performance of a dielectric metasurface is largely determined by its constituent material, which is highly desired to have a high refractive index, low optical loss and wide bandgap, and at the same time, be fabrication friendly. Here, we present a new material platform based on tantalum pentoxide (Ta2O5) for implementing high-performance dielectric metasurface optics over the ultraviolet and visible spectral region. This wide-bandgap dielectric, exhibiting a high refractive index exceeding 2.1 and negligible extinction coefficient across a broad spectrum, can be easily deposited over large areas with good quality using straightforward physical vapor deposition, and patterned into high-aspect-ratio subwavelength nanostructures through commonly-available fluorine-gas-based reactive ion etching. We implement a series of high-efficiency ultraviolet and visible metasurfaces with representative light-field modulation functionalities including polarization-independent high-numerical-aperture lensing, spin-selective hologram projection, and vivid structural color generation, and the devices exhibit operational efficiencies up to 80%. Our work overcomes limitations faced by scalability of commonly-employed metasurface dielectrics and their operation into the visible and ultraviolet spectral range, and provides a novel route towards realization of high-performance, robust and foundry-manufacturable metasurface optics.
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- 2024
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34. Screening for depression in children and adolescents in primary care or non-mental health settings: a systematic review update
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Andrew Beck, Nicole Dryburgh, Alexandria Bennett, Nicole Shaver, Leila Esmaeilisaraji, Becky Skidmore, Scott Patten, Heather Bragg, Ian Colman, Gary S. Goldfield, Stuart Gordon Nicholls, Kathleen Pajer, Robert Meeder, Priya Vasa, Beverley J. Shea, Melissa Brouwers, Julian Little, and David Moher
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Depression ,Screening ,Systematic review ,Child ,Children ,Adolescent ,Medicine - Abstract
Abstract Background The transition from childhood to adolescence is associated with an increase in rates of some psychiatric disorders, including major depressive disorder, a debilitating mood disorder. The aim of this systematic review is to update the evidence on the benefits and harms of screening for depression in primary care and non-mental health clinic settings among children and adolescents. Methods This review is an update of a previous systematic review, for which the last search was conducted in 2017. We searched Ovid MEDLINE® ALL, Embase Classic+Embase, PsycINFO, Cochrane Central Register of Controlled Trials, and CINAHL on November 4, 2019, and updated on February 19, 2021. If no randomized controlled trials were found, we planned to conduct an additional search for non-randomized trials with a comparator group. For non-randomized trials, we applied a non-randomized controlled trial filter and searched the same databases except for Cochrane Central Register of Controlled Trials from January 2015 to February 2021. We also conducted a targeted search of the gray literature for unpublished documents. Title and abstract, and full-text screening were completed independently by pairs of reviewers. Results In this review update, we were unable to find any randomized controlled studies that satisfied our eligibility criteria and evaluated the potential benefits and harms of screening for depression in children and adolescents. Additionally, a search for non-randomized trials yielded no studies that met the inclusion criteria. Conclusions The findings of this review indicate a lack of available evidence regarding the potential benefits and harms of screening for depression in children and adolescents. This absence of evidence emphasizes the necessity for well-conducted clinical trials to evaluate the effectiveness of depression screening among children and adolescents in primary care and non-mental health clinic settings. Systematic review registration PROSPERO CRD42020150373 .
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- 2024
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35. Expression of E-cadherin by CD8+ T cells promotes their invasion into biliary epithelial cells
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Scott P. Davies, Vincenzo Ronca, Grace E. Wootton, Natalia M. Krajewska, Amber G. Bozward, Rémi Fiancette, Daniel A. Patten, Katharina Yankouskaya, Gary M. Reynolds, Sofia Pat, Daniel C. Osei-Bordom, Naomi Richardson, Liam M. Grover, Christopher J. Weston, and Ye H. Oo
- Subjects
Science - Abstract
Abstract The presence of CD8+ T cells in the cytoplasm of biliary epithelial cells (BEC) has been correlated with biliary damage associated with primary biliary cholangitis (PBC). Here, we characterise the mechanism of CD8+ T cell invasion into BEC. CD8+ T cells observed within BEC were large, eccentric, and expressed E-cadherin, CD103 and CD69. They were also not contained within secondary vesicles. Internalisation required cytoskeletal rearrangements which facilitated contact with BEC. Internalised CD8+ T cells were observed in both non-cirrhotic and cirrhotic diseased liver tissues but enriched in PBC patients, both during active disease and at the time of transplantation. E-cadherin expression by CD8+ T cells correlated with frequency of internalisation of these cells into BEC. E-cadherin+ CD8+ T cells formed β-catenin-associated interactions with BEC, were larger than E-cadherin- CD8+ T cells and invaded into BEC more frequently. Overall, we unveil a distinct cell-in-cell structure process in the liver detailing the invasion of E-cadherin+ CD103+ CD69+ CD8+ T cells into BEC.
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- 2024
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36. Use of expanded Neisseria meningitidis serogroup B panels with the serum bactericidal antibody assay for the evaluation of meningococcal B vaccine effectiveness
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Ray Borrow, Federico Martinón-Torres, Véronique Abitbol, Anar Andani, Scott Preiss, Alessandro Muzzi, Laura Serino, and Woo-Yun Sohn
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4cmenb ,complement ,invasive meningococcal disease ,menb-fhbp ,neisseria meningitidis ,serum bactericidal antibody assay ,vaccine ,vaccine effectiveness ,Internal medicine ,RC31-1245 - Abstract
Introduction Neisseria meningitidis serogroup B (NmB) antigens are inherently diverse with variable expression among strains. Prediction of meningococcal B (MenB) vaccine effectiveness therefore requires an assay suitable for use against large panels of epidemiologically representative disease-causing NmB strains. Traditional serum bactericidal antibody assay using exogenous human complement (hSBA) is limited to the quantification of MenB vaccine immunogenicity on a small number of indicator strains. Areas covered Additional and complementary methods for assessing strain coverage developed previously include the Meningococcal Antigen Typing System (MATS), Meningococcal Antigen Surface Expression (MEASURE) assay, and genotyping approaches, but these do not estimate vaccine effectiveness. We provide a narrative review of these methods, highlighting a more recent approach involving the hSBA assay in conjunction with expanded NmB strain panels: hSBA assay using endogenous complement in each vaccinated person’s serum (enc-hSBA) against a 110-strain NmB panel and the traditional hSBA assay against 14 (4 + 10) NmB strains. Expert opinion The enc-hSBA is a highly standardized, robust method that can be used in clinical trials to measure the immunological effectiveness of MenB vaccines under conditions that mimic real-world settings as closely as possible, through the use of endogenous complement and a diverse, epidemiologically representative panel of NmB strains.
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- 2023
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37. Overview of the development and application of wind energy in New Zealand
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Zhiguo Zhang, Xiran Liu, Dan Zhao, Scott Post, and Jiasen Chen
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Renewable energy ,Wind energy ,Energy storage technologies ,Small-scale wind turbines ,Environmental technology. Sanitary engineering ,TD1-1066 ,Building construction ,TH1-9745 - Abstract
The restructuring of the energy industry is imperative, as New Zealand strives to reduce greenhouse gas emissions. New Zealand has abundant renewable energy resources, and about 85% of current electricity generation is from renewable energy sources. However, in recent years, it appears that a considerable fraction of wind energy has been underutilized. This article reviews the history, current status, and future trends of wind energy development in New Zealand. The main challenges to the current development of wind energy are summarized compared to other countries. The main challenges come from the bi-cultural influence, environmental influence, and economic and social influence due to the variable nature of wind power, it is critical to store and operate power safely and reliably during peak power generation periods. This article compares seven mainstream wind energy storage technologies and analyzes the best solution for wind energy storage in New Zealand. This article analyzes the feasibility of using small-scale household (standard power rating range from 0.004 to 16 kW) wind turbines in New Zealand cities regarding their construction and operation process. The life cycle and the maximum capacity coefficient of such small-scale wind turbines are overviewed via three case studies and later compared with large commercial wind turbines (standard power rating ranges from 1 to 3 MW) in power generation capacity. It has been found that small-scale household wind turbines have notable power generation potential and economic benefits in the long term.
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- 2023
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38. Antibody Persistence and Risk of COVID-19 Infection: Insights from Modeling
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Laurent Coudeville, Eleine Konate, Tabassome Simon, Xavier de Lamballerie, Scott Patterson, Clotilde El Guerche-Séblain, and Odile Launay
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antibody persistence ,statistical modeling ,COVID-19 ,correlates of protection ,neutralizing antibody titer ,Medicine - Abstract
Background: In this post hoc exploratory study of the APHP-COVIBOOST trial (NCT05124171), we used statistical modeling to describe the evolution of neutralizing antibody (nAb) titers over time, asses its impact on SARS-CoV-2 infection, and explore potential differences between three booster vaccine formulations (D614, B.1.351, and BNT162b2). Methods: Antibody titers were measured for 208 adult participants at day 28, 3 months, and 6 months using a microneutralization assay against different Omicron subvariants. We developed four specific Bayesian statistical models based on a core model, accounting for vaccine-specific antibody decline, boosting of nAb for breakthrough infection, and risk of infection according to nAb levels. The model findings were cross-verified using another validated microneutralization assay. Results: The decrease in nAb titers was significantly lower for the B.1.351 vaccine than for the other booster formulations. An inverse relationship was found between risk of infection upon exposure and nAb levels. With Omicron BA.1 data, these results translated into a positive relative vaccine efficacy against any infection over 6 months for the B.1.351 vaccine compared to the BNT162b2 (31%) and D614 (21%) vaccines. Conclusions: Risk of infection decreased with increasing nAb titers for all vaccines. Statistical models predicted significantly better antibody persistence for the B.1.351 booster formulation compared to the other evaluated vaccines.
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- 2024
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39. Infectious hepatitis E virus is associated with the mature sperm head.
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Kush K Yadav, Patricia A Boley, Thamonpan Laocharoensuk, Saroj Khatiwada, Carolyn M Lee, Menuka Bhandari, Lindsey Moore, Juliette Hanson, and Scott P Kenney
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Immunologic diseases. Allergy ,RC581-607 ,Biology (General) ,QH301-705.5 - Abstract
Hepatitis E virus (HEV) is the leading cause of acute viral hepatitis worldwide. HEV associated pregnancy mortality has been reported as up to 30% in humans. Recent findings suggest HEV may elicit effects directly in the reproductive system with HEV protein found in the testis, viral RNA in semen, and viral replication occurring in placental cell types. Using a natural host model for HEV infection, pigs, we demonstrate infectious HEV within the mature spermatozoa and altered sperm viability from HEV infected pigs. HEV isolated from sperm remained infectious suggesting a potential transmission route via sexual partners. Our findings suggest that HEV should be explored as a possible sexually transmittable disease. Our findings propose that infection routes outside of oral and intravenous infection need to be considered for their potential to contribute to higher mortality in HEV infections when pregnancy is involved and in HEV disease in general.
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- 2024
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40. A one health approach for monitoring antimicrobial resistance: developing a national freshwater pilot effort
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Alison M. Franklin, Daniel L. Weller, Lisa M. Durso, Mark Bagley, Benjamin C. Davis, Jonathan G. Frye, Christopher J. Grim, Abasiofiok M. Ibekwe, Michael A. Jahne, Scott P. Keely, Autumn L. Kraft, Betty R. McConn, Richard M. Mitchell, Andrea R. Ottesen, Manan Sharma, Errol A. Strain, Daniel A. Tadesse, Heather Tate, Jim E. Wells, Clinton F. Williams, Kim L. Cook, Claudine Kabera, Patrick F. McDermott, and Jay L. Garland
- Subjects
antimicrobial resistance ,surface waters ,monitoring ,one health ,freshwater ,environment ,Environmental technology. Sanitary engineering ,TD1-1066 - Abstract
Antimicrobial resistance (AMR) is a world-wide public health threat that is projected to lead to 10 million annual deaths globally by 2050. The AMR public health issue has led to the development of action plans to combat AMR, including improved antimicrobial stewardship, development of new antimicrobials, and advanced monitoring. The National Antimicrobial Resistance Monitoring System (NARMS) led by the United States (U.S) Food and Drug Administration along with the U.S. Centers for Disease Control and U.S. Department of Agriculture has monitored antimicrobial resistant bacteria in retail meats, humans, and food animals since the mid 1990’s. NARMS is currently exploring an integrated One Health monitoring model recognizing that human, animal, plant, and environmental systems are linked to public health. Since 2020, the U.S. Environmental Protection Agency has led an interagency NARMS environmental working group (EWG) to implement a surface water AMR monitoring program (SWAM) at watershed and national scales. The NARMS EWG divided the development of the environmental monitoring effort into five areas: (i) defining objectives and questions, (ii) designing study/sampling design, (iii) selecting AMR indicators, (iv) establishing analytical methods, and (v) developing data management/analytics/metadata plans. For each of these areas, the consensus among the scientific community and literature was reviewed and carefully considered prior to the development of this environmental monitoring program. The data produced from the SWAM effort will help develop robust surface water monitoring programs with the goal of assessing public health risks associated with AMR pathogens in surface water (e.g., recreational water exposures), provide a comprehensive picture of how resistant strains are related spatially and temporally within a watershed, and help assess how anthropogenic drivers and intervention strategies impact the transmission of AMR within human, animal, and environmental systems.
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- 2024
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41. Organ-on-a-chip for studying immune cell adhesion to liver sinusoidal endothelial cells: the potential for testing immunotherapies and cell therapy trafficking
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James I. Kennedy, Scott P. Davies, Peter W. Hewett, Alex L. Wilkinson, Ye H. Oo, Wei-Yu Lu, Alicia J. El Haj, and Shishir Shetty
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liver sinusoidal endothelial cells ,organ-on-a-chip ,immune cell ,adhesion ,migration ,Biology (General) ,QH301-705.5 - Abstract
Immunotherapy has changed the landscape of treatment options for patients with hepatocellular cancer. Checkpoint inhibitors are now standard of care for patients with advanced tumours, yet the majority remain resistant to this therapy and urgent approaches are needed to boost the efficacy of these agents. Targeting the liver endothelial cells, as the orchestrators of immune cell recruitment, within the tumour microenvironment of this highly vascular cancer could potentially boost immune cell infiltration. We demonstrate the successful culture of primary human liver endothelial cells in organ-on-a-chip technology followed by perfusion of peripheral blood mononuclear cells. We confirm, with confocal and multiphoton imaging, the capture and adhesion of immune cells in response to pro-inflammatory cytokines in this model. This multicellular platform sets the foundation for testing the efficacy of new therapies in promoting leukocyte infiltration across liver endothelium as well as a model for testing cell therapy, such as chimeric antigen receptor (CAR)-T cell, capture and migration across human liver endothelium.
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- 2024
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42. COVID's Impact on Science Achievement: Trends from 2019 through 2024. Brief
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NWEA, Susan M. Kowalski, Scott J. Peters, Megan Kuhfeld, Gustave Robinson, and Karyn Lewis
- Abstract
This brief continues ongoing research by NWEA® examining the degree to which the COVID-19 pandemic, and its associated school closures, influenced student learning. Prior research focused on math and reading and found that the pandemic's negative impact steadily accumulated during the 2020-2021 school year, with significant disparities in achievement and growth compared to prepandemic trends (Lewis, Kuhfeld, Ruzek, & McEachin, 2021). Although there were modest rebounds in reading and math during the 2021-2022 school year, progress toward pandemic recovery largely stalled in 2022-2023 and 2023-2024, with achievement and growth trends still trailing behind prepandemic levels (Kuhfeld & Lewis, 2022; Lewis & Kuhfeld, 2023; Lewis & Kuhfeld, 2024). Building on previous research series focused on math and reading achievement, this brief explores how the pandemic influenced student achievement in science. It examines science test scores across seven school years to understand how COVID-19 influenced science achievement.
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- 2024
43. Technical Appendix For: 'COVID's Impact on Science Achievement: Trends from 2019 through 2024.' Technical Brief
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NWEA, Susan Kowalski, Megan Kuhfeld, Scott Peters, Gustave Robinson, and Karyn Lewis
- Abstract
The purpose of this technical appendix is to share detailed results and more fully describe the sample and methods used to produce the research brief, "COVID's Impact on Science Achievement: Trends from 2019 through 2024. We investigated three main research questions in this brief: 1) How did science achievement in 2021 and 2024 compare to achievement in 2019, before the pandemic? 2) How much additional schooling was required in spring 2021 and spring 2024 to return to spring 2019 levels? 3) How do these patterns differ by race/ethnicity?
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- 2024
44. 7. The Kaleidoscope of Midface Management in Apert Syndrome: A 23-Year Single-Institution Experience
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Meagan Wu, MA, Benjamin B. Massenburg, MD, Jinggang J. Ng, MA, Dominic J. Romeo, MA, Jordan W. Swanson, MD, MSc, Scott P. Bartlett, MD, and Jesse A. Taylor, MD
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Surgery ,RD1-811 - Published
- 2024
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45. D30. Orbital And Ocular Outcomes Of Rare Craniofacial Clefts: A Single Center’s 30-year Experience with 147 Patients
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Jinggang J. Ng, MA, Anny Zhong, BS, Meagan Wu, MA, Dominic J. Romeo, MA, Benjamin B. Massenburg, MD, Matthew E. Pontell, MD, Carlos E. Barrero, BS, William R. Katowitz, MD, Gil Binenbaum, MD, Scott P. Bartlett, MD, and Jesse A. Taylor, MD
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Surgery ,RD1-811 - Published
- 2024
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46. D50. A Single Center’s 18-year Experience Of 1170 Rhinoplasties among 1007 Patients with Cleft Lip Nasal Deformity
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Jinggang J. Ng, MA, Liana Cheung, MD, Benjamin B. Massenburg, MD, Daniel Y. Cho, MD, Meagan Wu, MA, Dominic J. Romeo, MA, David W. Low, MD, Oksana A. Jackson, MD, Jordan W. Swanson, MD, Scott P. Bartlett, MD, and Jesse A. Taylor, MD
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Surgery ,RD1-811 - Published
- 2024
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47. D65. Clinical Research Fellowship Facilitates Mentorship, Teamwork, And Productivity: Our 11-year Experience with a Cleft and Craniofacial Research Fellowship
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Dominic J. Romeo, MA, MTS, Steven Du, BA, Benjamin B. Massenburg, MS, Meagan Wu, MA, Jinggang J. Ng, MA, John P. Fischer, MD, MPH, Jordan W. Swanson, MD, MSc, Scott P. Bartlett, MD, and Jesse A. Taylor, MD
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Surgery ,RD1-811 - Published
- 2024
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48. Coordinated single-cell tumor microenvironment dynamics reinforce pancreatic cancer subtype
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Ki Oh, Yun Jae Yoo, Luke A. Torre-Healy, Manisha Rao, Danielle Fassler, Pei Wang, Michael Caponegro, Mei Gao, Joseph Kim, Aaron Sasson, Georgios Georgakis, Scott Powers, and Richard A. Moffitt
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Science - Abstract
Abstract Bulk analyses of pancreatic ductal adenocarcinoma (PDAC) samples are complicated by the tumor microenvironment (TME), i.e. signals from fibroblasts, endocrine, exocrine, and immune cells. Despite this, we and others have established tumor and stroma subtypes with prognostic significance. However, understanding of underlying signals driving distinct immune and stromal landscapes is still incomplete. Here we integrate 92 single cell RNA-seq samples from seven independent studies to build a reproducible PDAC atlas with a focus on tumor-TME interdependence. Patients with activated stroma are synonymous with higher myofibroblastic and immunogenic fibroblasts, and furthermore show increased M2-like macrophages and regulatory T-cells. Contrastingly, patients with ‘normal’ stroma show M1-like recruitment, elevated effector and exhausted T-cells. To aid interoperability of future studies, we provide a pretrained cell type classifier and an atlas of subtype-based signaling factors that we also validate in mouse data. Ultimately, this work leverages the heterogeneity among single-cell studies to create a comprehensive view of the orchestra of signaling interactions governing PDAC.
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- 2023
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49. Targeted inhibition of protein synthesis renders cancer cells vulnerable to apoptosis by unfolded protein response
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Franziska Gsottberger, Christina Meier, Anna Ammon, Scott Parker, Kerstin Wendland, Rebekka George, Srdjan Petkovic, Lisa Mellenthin, Charlotte Emmerich, Gloria Lutzny-Geier, Markus Metzler, Andreas Mackensen, Vidyalakshmi Chandramohan, and Fabian Müller
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Cytology ,QH573-671 - Abstract
Abstract Cellular stress responses including the unfolded protein response (UPR) decide over the fate of an individual cell to ensure survival of the entire organism. During physiologic UPR counter-regulation, protective proteins are upregulated to prevent cell death. A similar strategy induces resistance to UPR in cancer. Therefore, we hypothesized that blocking protein synthesis following induction of UPR substantially enhances drug-induced apoptosis of malignant cells. In line, upregulation of the chaperone BiP was prevented by simultaneous arrest of protein synthesis in B cell malignancies. Cytotoxicity by immunotoxins—approved inhibitors of protein synthesis—was synergistically enhanced in combination with UPR-inducers in seven distinct hematologic and three solid tumor entities in vitro. Synergistic cell death depended on mitochondrial outer membrane permeabilization via BAK/BAX, which correlated with synergistic, IRE1α-dependent reduction of BID, accompanied by an additive fall of MCL-1. The strong synergy was reproduced in vivo against xenograft mouse models of mantle cell lymphoma, Burkitt’s lymphoma, and patient-derived acute lymphoblastic leukemia. In contrast, synergy was absent in blood cells of healthy donors suggesting a tumor-specific vulnerability. Together, these data support clinical evaluation of blocking stress response counter-regulation using inhibitors of protein synthesis as a novel therapeutic strategy.
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- 2023
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50. Inhibition of serum- and glucocorticoid-induced kinase 1 ameliorates hydrocephalus in preclinical models
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Alexandra Hochstetler, Hillary Smith, Makenna Reed, Louise Hulme, Paul Territo, Amanda Bedwell, Scott Persohn, Nicola Perrotti, Lucia D’Antona, Francesca Musumeci, Silvia Schenone, and Bonnie L. Blazer-Yost
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Hydrocephalus ,Choroid plexus ,Transepithelial epithelial ion transport ,Serum- and glucocorticoid-induced kinase 1 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Hydrocephalus is a pathological accumulation of cerebrospinal fluid (CSF), leading to ventriculomegaly. Hydrocephalus may be primary or secondary to traumatic brain injury, infection, or intracranial hemorrhage. Regardless of cause, current treatment involves surgery to drain the excess CSF. Importantly, there are no long-term, effective pharmaceutical treatments and this represents a clinically unmet need. Many forms of hydrocephalus involve dysregulation in water and electrolyte homeostasis, making this an attractive, druggable target. Methods In vitro, a combination of electrophysiological and fluid flux assays was used to elucidate secretory transepithelial electrolyte and fluid flux in a human cell culture model of the choroid plexus epithelium and to determine the involvement of serum-, glucocorticoid-induced kinase 1 (SGK1). In vivo, MRI studies were performed in a genetic rat model of hydrocephalus to determine effects of inhibition of SGK1 with a novel inhibitor, SI113. Results In the cultured cell line, SI113 reduced secretory transepithelial electrolyte and fluid flux. In vivo, SI113 blocks the development of hydrocephalus with no effect on ventricular size of wild-type animals and no overt toxic effects. Mechanistically, the development of hydrocephalus in the rat model involves an increase in activated, phosphorylated SGK1 with no change in the total amount of SGK1. SI113 inhibits phosphorylation with no changes in total SGK1 levels in the choroid plexus epithelium. Conclusion These data provide a strong preclinical basis for the use of SGK1 inhibitors in the treatment of hydrocephalus.
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- 2023
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