108 results on '"Jeffrey Go"'
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2. Phylogenomic diversity of Vibrio species and other Gammaproteobacteria isolated from Pacific oysters (Crassostrea gigas) during a summer mortality outbreak
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Paul J. Worden, Daniel R. Bogema, Melinda L. Micallef, Jeffrey Go, Ania T. Deutscher, Maurizio Labbate, Timothy J. Green, William L. King, Michael Liu, Justin R. Seymour, and Cheryl Jenkins
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0604 Genetics, 0605 Microbiology ,General Medicine - Abstract
The Pacific oyster (PO), Crassostrea gigas, is an important commercial marine species but periodically experiences large stock losses due to disease events known as summer mortality. Summer mortality has been linked to environmental perturbations and numerous viral and bacterial agents, indicating this disease is multifactorial in nature. In 2013 and 2014, several summer mortality events occurred within the Port Stephens estuary (NSW, Australia). Extensive culture and molecular-based investigations were undertaken and several potentially pathogenic Vibrio species were identified. To improve species identification and genomically characterise isolates obtained from this outbreak, whole-genome sequencing (WGS) and subsequent genomic analyses were performed on 48 bacterial isolates, as well as a further nine isolates from other summer mortality studies using the same batch of juveniles. Average nucleotide identity (ANI) identified most isolates to the species level and included members of the Photobacterium , Pseudoalteromonas , Shewanella and Vibrio genera, with Vibrio species making up more than two-thirds of all species identified. Construction of a phylogenomic tree, ANI analysis, and pan-genome analysis of the 57 isolates represents the most comprehensive culture-based phylogenomic survey of Vibrios during a PO summer mortality event in Australian waters and revealed large genomic diversity in many of the identified species. Our analysis revealed limited and inconsistent associations between isolate species and their geographical origins, or host health status. Together with ANI and pan-genome results, these inconsistencies suggest that to determine the role that microbes may have in Pacific oyster summer mortality events, isolate identification must be at the taxonomic level of strain. Our WGS data (specifically, the accessory genomes) differentiated bacterial strains, and coupled with associated metadata, highlight the possibility of predicting a strain’s environmental niche and level of pathogenicity.
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- 2022
3. Multimodality imaging of a rare intracardiac bronchogenic cyst
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Jeffrey Gonzalez, B.S., Juan C. Batlle, M.D., Christopher Maroules, M.D., Ricardo C. Cury, M.D., FSCCT, Constantino S. Peña, M.D., Charles Ma, M.D., Manuel Menes, M.D., and Karl Sayegh, M.D.
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Cysts ,Echocardiography ,Cardiac ,CT-angiography ,Neoplasms-Primary ,MR Imaging ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
The authors report a case of pathologically proven intracardiac bronchogenic cyst embedded within the interatrial septum of a 30-year-old woman presenting with chest pain and first-degree AV block. Multimodality imaging played an essential role in the discovery, investigation, and diagnosis of this extremely rare entity.
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- 2024
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4. Duration of rice stink bug, Oebalus pugnax (F.) infestation impacts the milk stage of panicle development
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George A. Awuni, Jeffrey Gore, Maria Tomaso-Peterson, Tom W. Allen, Donald R. Cook, and Fred R. Musser
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Rice stink bug ,kernel discoloration ,infestation duration ,milk stage ,damaged kernel ,grain quality ,Agriculture ,Food processing and manufacture ,TP368-456 - Abstract
Oebalus pugnax (F.), is a late-season pest of rice during the reproductive stage. A two-year field study was conducted in Stoneville, Mississippi, to characterize and evaluate various O. pugnax infestation durations on rice yield and quality at the milk stage (R5.5-R6.5) of panicle development. In 2011, twenty adult O. pugnax were caged individually on ˈWellsˈ panicles for 3, 5, or 7 days regardless of sex. The experiment was repeated in 2012 to include a 1-day infestation duration and a sex-controlled infestation of 10 males and 10 females caged individually on ‘Wells’ and ‘Cocodrie’ rice identification of panicles. The weight and percentages of the filled, undamaged, damaged, and blank kernels per panicle were evaluated. Filled kernel weight did not differ significantly amongst the various O. pugnax infestation durations. The undamaged kernels decreased with increasing infestation duration between 11% and 21% relative to the control treatment. The damaged and blank kernels increased with increasing infestation duration between 113–262% and 27–192% for the damaged and blank kernels, respectively. The average single kernel weight for undamaged, damaged, and blank kernels was 24, 13, and 4 mg, respectively. The damaged kernel resulted in a 46% weight reduction relative to the undamaged kernel. Female O. pugnax infestations resulted in a greater yield and quality reduction than male infestations. This study provides Mississippi rice producers, with first-hand information of O. pugnax feeding duration on kernel yield and quality. Future studies on the milling quality and identification of fungi pathogens associated with Mississippi rice may be desirable.
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- 2024
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5. Australian bass Macquaria novemaculeata susceptibility to experimental megalocytivirus infection and utility as a model disease vector
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Jeffrey Go and Richard Whittington
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food.ingredient ,040301 veterinary sciences ,Zoology ,Macquaria ,Disease Vectors ,Aquatic Science ,Megalocytivirus ,0403 veterinary science ,Fish Diseases ,Bass (fish) ,Murray cod ,food ,Aquaculture ,Animals ,Phylogeny ,Ecology, Evolution, Behavior and Systematics ,biology ,business.industry ,Australia ,04 agricultural and veterinary sciences ,Euryhaline ,biology.organism_classification ,DNA Virus Infections ,Iridoviridae ,040102 fisheries ,Maccullochella ,0401 agriculture, forestry, and fisheries ,Bass ,business ,Kidney necrosis - Abstract
Megalocytiviruses, particularly red seabream iridovirus, infect a broad range of fish including both freshwater and marine species. Although a limited number of infectious spleen and kidney necrosis virus (ISKNV) strains have been reported in association with mortality events in marine aquaculture species, the potential host range for ISKNV strains, particularly of those that have been detected in ornamental fish, has not been well characterised. There have also been few reports on the susceptibility of euryhaline fish species that could potentially transmit megalocytiviruses between freshwater and marine environments. We found that the euryhaline Australian native percichthyid fish, Australian bass Macquaria novemaculeata, is susceptible experimentally to ISKNV (strain DGIV-10), obtained from a freshwater ornamental fish, dwarf gourami Trichogaster lalius. Australian bass developed clinical disease following direct inoculation and also following cohabitation with infected fish, and were able to transmit DGIV-10 to naïve Murray cod Maccullochella peelii. This study demonstrated the potential for a euryhaline species to become infected with, and transmit, the megalocytivirus ISKNV between fish populations.
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- 2019
6. Responding to the humanitarian crisis in Sudan
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Jeffrey Goldhagen, Safa E Elkrail, and Ashraf Affan
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Pediatrics ,RJ1-570 - Published
- 2024
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7. Arrhythmogenic effects of acute electronic cigarette compared to tobacco cigarette smoking in people living with HIV
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Isabelle Ruedisueli, Katie Shi, Samuel Lopez, Jeffrey Gornbein, and Holly R. Middlekauff
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electronic cigarettes ,heart rate variablity ,tobacco ,nicotine ,parasympathetic nerve activity ,sympathetic nerve activity ,Physiology ,QP1-981 - Abstract
Abstract The leading cause of death in people living with HIV (PLWH) is cardiovascular disease, and the high prevalence of tobacco cigarette (TC) smoking is a major contributor. Switching to electronic cigarettes (ECs) has been promoted as a harm reduction strategy. We sought to determine if acute EC compared to TC smoking had less harmful effects on arrhythmogenic risk factors including acute changes in hemodynamics, heart rate variability (HRV), and ventricular repolarization (VR). In PLWH who smoke, changes in hemodynamics, HRV, and VR were compared pre/post acutely using an EC, TC, or puffing on an empty straw on different days in random order, in a crossover study. Thirty‐seven PLWH (36 males, mean age 40.5 ± 9.1 years) participated. Plasma nicotine was greater after TC versus EC use (10.12 ± 0.96 vs. 6.18 ± 0.99 ng/mL, respectively, p = 0.004). HR increased significantly, and similarly, after acute EC and TC smoking compared to control. Changes in HRV that confer increased cardiac risk (LF/HF ratio) were significantly smaller after acute EC versus TC use, consistent with a harm reduction effect. In a post‐hoc analysis of PLWH with and without positive concurrent recreational drug use as indicated by point of care urine toxicology testing, this differential effect was only seen in PLWH not currently using recreational drugs. Changes in VR were not different among the three exposures. In PLWH who smoke, EC compared to TC smoking resulted in smaller adverse changes in HRV. This differential effect was accompanied by a smaller increase in plasma nicotine, and was negated by concurrent recreational drug use. Additional studies are warranted in this vulnerable population disproportionately affected by tobacco‐related health disparities.
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- 2024
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8. Clinical Significance of SOX10 Expression in Human Pathology
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Hisham F. Bahmad, Aran Thiravialingam, Karthik Sriganeshan, Jeffrey Gonzalez, Veronica Alvarez, Stephanie Ocejo, Alvaro R. Abreu, Rima Avellan, Alejandro H. Arzola, Sana Hachem, and Robert Poppiti
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SOX10 ,neural crest cells ,melanoma ,neuroectodermal tumors ,mesenchymal tumors ,Biology (General) ,QH301-705.5 - Abstract
The embryonic development of neural crest cells and subsequent tissue differentiation are intricately regulated by specific transcription factors. Among these, SOX10, a member of the SOX gene family, stands out. Located on chromosome 22q13, the SOX10 gene encodes a transcription factor crucial for the differentiation, migration, and maintenance of tissues derived from neural crest cells. It plays a pivotal role in developing various tissues, including the central and peripheral nervous systems, melanocytes, chondrocytes, and odontoblasts. Mutations in SOX10 have been associated with congenital disorders such as Waardenburg–Shah Syndrome, PCWH syndrome, and Kallman syndrome, underscoring its clinical significance. Furthermore, SOX10 is implicated in neural and neuroectodermal tumors, such as melanoma, malignant peripheral nerve sheath tumors (MPNSTs), and schwannomas, influencing processes like proliferation, migration, and differentiation. In mesenchymal tumors, SOX10 expression serves as a valuable marker for distinguishing between different tumor types. Additionally, SOX10 has been identified in various epithelial neoplasms, including breast, ovarian, salivary gland, nasopharyngeal, and bladder cancers, presenting itself as a potential diagnostic and prognostic marker. However, despite these associations, further research is imperative to elucidate its precise role in these malignancies.
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- 2023
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9. Detection of infectious spleen and kidney necrosis virus (ISKNV) and turbot reddish body iridovirus (TRBIV) from archival ornamental fish samples
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S. C. Yun, Richard Whittington, J. H. Handlinger, Jeffrey Go, R. Chong, Kuttichantran Subramaniam, Thomas B. Waltzek, Joseph M. Groff, Ian G. Anderson, I. Shirley, Alison Tweedie, and JoAnn C. L. Schuh
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0301 basic medicine ,Iridoviridae ,food.ingredient ,Genotype ,biology ,Iridovirus ,Trichogaster ,Fishes ,Aquatic Science ,biology.organism_classification ,Megalocytivirus ,Virology ,03 medical and health sciences ,030104 developmental biology ,food ,Astronotus ,DNA, Viral ,Veterinary virology ,Animals ,Phylogeny ,Ecology, Evolution, Behavior and Systematics ,Biological Specimen Banks ,Kidney necrosis ,Pterophyllum scalare - Abstract
Although infections caused by megalocytiviruses have been reported from a wide range of finfish species for several decades, molecular characterisation of the viruses involved has been undertaken only on more recent cases. Sequence analysis of the major capsid protein and adenosine triphosphatase genes is reported here from formalin-fixed, paraffin-embedded material from 2 archival ornamental fish cases from 1986 and 1988 in conjunction with data for a range of genes from fresh frozen tissues from 5 cases obtained from 1991 through to 2010. Turbot reddish body iridovirus (TRBIV) genotype megalocytiviruses, previously not documented in ornamental fish, were detected in samples from 1986, 1988 and 1991. In contrast, megalocytiviruses from 1996 onwards, including those characterised from 2002, 2006 and 2010 in this study, were almost indistinguishable from infectious spleen and kidney necrosis virus (ISKNV). Three of the species infected with TRBIV-like megalocytiviruses from 1986 to 1991, viz. dwarf gourami Trichogaster lalius (formerly Colisa lalia), freshwater angelfish Pterophyllum scalare and oscar Astronotus ocellatus, were infected with ISKNV genotype megalocytiviruses from 2002 to 2010. The detection of a TRBIV genotype isolate in ornamental fish from 1986 represents the index case, confirmed by molecular sequence data, for the genus Megalocytivirus.
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- 2016
10. Experimental transmission of infectious spleen and kidney necrosis virus (ISKNV) from freshwater ornamental fish to silver sweep Scorpis lineolata, an Australian marine fish
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Jeffrey Go and Richard Whittington
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food.ingredient ,040301 veterinary sciences ,Zoology ,Macquaria ,Fresh Water ,Aquatic Science ,Megalocytivirus ,0403 veterinary science ,Bass (fish) ,Murray cod ,Fish Diseases ,food ,Animals ,Ecology, Evolution, Behavior and Systematics ,Phylogeny ,biology ,Scorpis lineolata ,Australia ,04 agricultural and veterinary sciences ,Euryhaline ,biology.organism_classification ,DNA Virus Infections ,Iridoviridae ,040102 fisheries ,Maccullochella ,0401 agriculture, forestry, and fisheries ,sense organs ,Kidney necrosis - Abstract
The Australian native marine fish species, silver sweep Scorpis lineolata, is susceptible to the megalocytivirus Infectious spleen and kidney necrosis virus (strain DGIV-10) obtained from a freshwater ornamental fish, dwarf gourami Trichogaster lalius. This was demonstrated by direct inoculation and through cohabitation. Transmission by cohabitation was also demonstrated from inoculated freshwater Murray cod Maccullochella peelii to euryhaline Australian bass Macquaria novemaculeata and to marine silver sweep. The virus was also transmitted from infected marine silver sweep to euryhaline Australian bass and then to freshwater Murray cod. This study is the first to demonstrate the virulence of a megalocytivirus derived from ornamental fish in an Australian marine species and the first to show a feasible pathway for the exchange of megalocytiviruses between freshwater and marine finfish hosts. These results demonstrate that megalocytiviruses from freshwater ornamental fish have the potential to spread to diverse aquatic environments.
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- 2019
11. Potential for Grain Sorghum as a Trap and Nursery Crop for Helicoverpa zea and Its Natural Enemies and Dissemination of HearNPV into Cotton
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Wilfrid Calvin, Jeffrey Gore, Jeremy Greene, Lindsey Perkin, and David L. Kerns
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Helicoverpa zea ,HearNPV ,IPM ,biological insecticide ,biological control ,Agriculture - Abstract
Experiments were conducted in 2020 and 2021 in College Station, TX; Stoneville, MS; and Blackville, SC, to evaluate the potential of grain sorghum to serve as a trap crop for Helicoverpa zea (Boddie), a nursery crop for natural enemies of H. zea, and a source of Helicoverpa armigera nucleopolyhedrovirus (HearNPV) for H. zea management in cotton. The experiments consisted of three treatments, including cotton-only, non-treated cotton–sorghum, and HearNPV-treated cotton–sorghum. Variables, including percent injury to fruiting forms, parasitized H. zea larvae, egg density, H. zea larval density, beneficial arthropod numbers, and HearNPV prevalence, were compared between the treatments. Growing cotton in an intercropping system with grain sorghum did not result in a consistent increase in H. zea control and beneficial arthropod density relative to the cotton-only treatment. Additionally, our results did not show sufficient evidence that grain sorghum interplanted with cotton can serve as a source of HearNPV that can favor H. zea control in cotton. However, we found that, if maintained in the cotton canopy, HearNPV may favor some level of H. zea suppression in cotton. Based on our HearNPV infection analyses using PCR, chrysopids, coccinellids, pentatomids, reduviids, formicids, anthocorids, and spiders appeared to be carrying HearNPV. The virus was detected consistently in specimens of coccinellids, pentatomids, and reduviids across both years of the study. We suggest that further investigation on virus efficacy against H. zea in cotton using the sorghum–cotton system as well as the ability of grain sorghum to serve as a H. zea trap crop and source of H. zea natural enemies be considered in future studies.
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- 2024
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12. Gestational Trophoblastic Disease: Complete versus Partial Hydatidiform Moles
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Jeffrey Gonzalez, Meagan Popp, Stephanie Ocejo, Alvaro Abreu, Hisham F. Bahmad, and Robert Poppiti
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hydatidiform mole ,gestational trophoblastic disease ,complete hydatidiform mole ,partial hydatidiform mole ,choriocarcinoma ,Medicine - Abstract
Hydatidiform moles, including both complete and partial moles, constitute a subset of gestational trophoblastic diseases characterized by abnormal fertilization resulting in villous hydrops and trophoblastic hyperplasia with or without embryonic development. This involves chromosomal abnormalities, where one or two sperms fertilize an empty oocyte (complete hydatidiform mole (CHM); mostly 46,XX) or two sperms fertilize one oocyte (partial hydatidiform mole (PHM); mostly 69,XXY). Notably, recurrent occurrences are associated with abnormal genomic imprinting of maternal effect genes such as NLRP7 (chromosome 19q13.4) and KHDC3L (chromosome 6q1). Ongoing efforts to enhance identification methods have led to the identification of growth-specific markers, including p57 (cyclin-dependent kinase inhibitor 1C; CDKN1C), which shows intact nuclear expression in the villous cytotrophoblast and villous stromal cells in PHMs and loss of expression in CHMs. Treatment of hydatidiform moles includes dilation and curettage for uterine evacuation of the molar pregnancy followed by surveillance of human chorionic gonadotropin (HCG) levels to confirm disease resolution and rule out the development of any gestational trophoblastic neoplasia. In this review, we provide a synopsis of the existing literature on hydatidiform moles, their diagnosis, histopathologic features, and management.
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- 2024
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13. Gravitational effects on fibroblasts’ function in relation to wound healing
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Wilhelmina E. Radstake, Kiran Gautam, Silvana Miranda, Cynthia Van Rompay, Randy Vermeesen, Kevin Tabury, Mieke Verslegers, Alan Dowson, Jeffrey Gorissen, Jack J. W. A. van Loon, Nigel D. L. Savage, Sarah Baatout, and Bjorn Baselet
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Biotechnology ,TP248.13-248.65 ,Physiology ,QP1-981 - Abstract
Abstract The spaceflight environment imposes risks for maintaining a healthy skin function as the observed delayed wound healing can contribute to increased risks of infection. To counteract delayed wound healing in space, a better understanding of the fibroblasts’ reaction to altered gravity levels is needed. In this paper, we describe experiments that were carried out at the Large Diameter Centrifuge located in ESA-ESTEC as part of the ESA Academy 2021 Spin Your Thesis! Campaign. We exposed dermal fibroblasts to a set of altered gravity levels, including transitions between simulated microgravity and hypergravity. The addition of the stress hormone cortisol to the cell culture medium was done to account for possible interaction effects of gravity and cortisol exposure. Results show a main impact of cortisol on the secretion of pro-inflammatory cytokines as well as extracellular matrix proteins. Altered gravity mostly induced a delay in cellular migration and changes in mechanosensitive cell structures. Furthermore, 20 × g hypergravity transitions induced changes in nuclear morphology. These findings provide insights into the effect of gravity transitions on the fibroblasts’ function related to wound healing, which may be useful for the development of countermeasures.
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- 2023
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14. Moms in the NICU: developing a pilot to engage and empower women who have delivered a prematurely born infant
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Kimber Padua, Rebecca Robinson, Amen Ness, Amy Judy, Grace M Lee, and Jeffrey Gould
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Mothers ,NICU ,Engage mothers ,Empower mothers ,Decrease risk of repeat preterm birth ,Gynecology and obstetrics ,RG1-991 - Abstract
Abstract Background Mothers spend long hours at their preterm infant’s bedside in the Neonatal Intensive Care Unit (NICU), giving clinicians the opportunity to engage mothers in caring for their own health. Objective To develop a NICU based intervention to reduce the risk of a future premature birth by engaging and empowering mothers to improve their own health and identify barriers to implementing their improvement. Design Development based on a framework of narrative discourse refined by the Quality Improvement Plan Do Study Act Approach. Setting Level II Stepdown Neonatal Intensive Care Unit. Participants 14 mothers of preterm infants, ages 24–39 years. Methods A team of Maternal Fetal Medicine Physicians, obstetricians, neonatologists, neonatal nurses, and parents developed guidelines to elicit the mother’s birth story, review the story with a clinical expert to fill in knowledge gaps, identify strategies to improve health to reduce the risk of future preterm birth, and facilitate mother developing an action plan with specific six week goals. A phone interview was designed to assess success and identify barriers to implementing their health plan. The protocol was modified as needed after each intervention to improve the interventions. Results “Moms in the NICU” toolkit is effective to guide any clinical facilitator to engage, identify health improvement strategies, and co-develop an individualized health plan and its take home summary reached stability after the 5th mother. Mothers reported experiencing reassurance, understanding, and in some cases, relief. Participants were enthusiastic to inform future quality improvement activities by sharing the six week barriers faced implementing their health plan. Conclusion Engaging in the NICU provides an opportunity to improve mothers’ understanding of potential factors that may be linked to preterm birth, and promote personally selected actions to improve their health and reduce the risk of a future preterm birth.
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- 2023
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15. Fetal Pericardial Teratoma
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Angela Desmond, MD, Gary Satou, MD, Meena Garg, MD, Suhas Kallapur, MD, Janet Horenstein, MD, Jeffrey Goldstein, MD, Glen Van Arsdell, MD, and Yalda Afshar, MD, PhD
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congenital heart defect ,hemodynamics ,pericardial effusion ,pregnancy ,teratoma ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
A very large fetal pericardial teratoma was diagnosed at 28 weeks’ gestation, prompting urgent multidisciplinary expert consultations to weigh the risks and benefits of various prenatal invasive procedures and preterm delivery for postnatal surgical management. Ultimately, the infant was born by planned cesarean section and underwent immediate cardiopulmonary bypass and surgical resection.
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- 2024
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16. Street and working children: a call for rights-based approach to their health and well-being
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Shanti Raman, Jeffrey Goldhagen, Rajeev Seth, and Pia MacRae
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Pediatrics ,RJ1-570 - Published
- 2024
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17. Pre-post feasibility trial of a telephone-delivered exercise intervention for patients during chemotherapy for recurrent ovarian cancer: the ECHO-R trial protocol
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Andreas Obermair, Monika Janda, Sandra C Hayes, Elizabeth Eakin, Marcelo Nascimento, Dimitrios Vagenas, Jermaine Coward, Louisa G Gordon, Catherine Shannon, James Nicklin, Jeffrey Goh, Vanessa L Beesley, Penny Webb, Merran Williams, Sheree Rye, Rosalind R Spence, Helene O’Neill, Melissa J Newton, Sara Baniahmadi, and Andrea Garret
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Medicine - Abstract
Introduction The benefits of exercise in reducing treatment-related morbidity and improving quality of life following a primary diagnosis of cancer have been well documented and have led to exercise being recommended by oncology societies for all people with a cancer diagnosis. However, these recommendations are derived from research typically involving cohorts with more common cancers and relatively good prognosis, such as breast and prostate. Evidence from these cancers may not apply to women with recurrent ovarian cancer. Therefore, the primary objective of this trial is to evaluate the feasibility and safety of a home-based, telephone-delivered exercise intervention for women undergoing chemotherapy for recurrent ovarian cancer.Methods and analysis The Exercise During Chemotherapy for Recurrent Ovarian Cancer (ECHO-R) trial is a single-arm, phase II, pre/postintervention trial of a 6-month, telephone-delivered exercise intervention (consistent with recommended exercise oncology prescription). The target sample size is 80 women who are currently undergoing (or are scheduled to receive) chemotherapy for recurrent ovarian cancer. Recruitment is through participating hospital sites in Queensland, Australia, or via self-referral. The exercise intervention comprises 12 telephone sessions over a 6-month period delivered by trial-trained exercise professionals and supplemented (where feasible) by five sessions face to face. Exercise prescription is individualised and works towards an overall goal of achieving a weekly target of 150 min of moderate-intensity, mixed-mode exercise. Assessments via self-administered survey and physical fitness and function tests occur at baseline and then at 6 and 9 months postbaseline. Data to inform feasibility and safety are recorded as case notes by the exercise professional during each session.Ethics and dissemination Ethics approval for the ECHO-R trial was granted by the Metro North Human Research Ethics Committee (HREC/2020/QRBW/67223) on 6 November 2020. Findings from the trial are planned to be disseminated via peer-reviewed publications and both national and international exercise and oncology conferences.Trial registration number ACTRN12621000042842.
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- 2024
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18. Corrigendum: Academic performance of children with sickle cell disease in the United States: a meta-analysis
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Andrew M. Heitzer, Latacha Hamilton, Claire Stafford, Jeffrey Gossett, Lara Ouellette, Ana Trpchevska, Allison A. King, Guolian Kang, and Jane S. Hankins
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sickle cell ,anemia ,academic performance ,neurocognitive ,education ,stroke ,Neurology. Diseases of the nervous system ,RC346-429 - Published
- 2023
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19. Incidence and Risk Factors for Retinal Detachment and Retinal Tear after Cataract Surgery
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Michael J. Morano, MD, M. Ali Khan, MD, Qiang Zhang, PhD, Colleen P. Halfpenny, MD, Douglas M. Wisner, MD, James Sharpe, MS, Alexander Li, MS, Maurizio Tomaiuolo, PhD, Julia A. Haller, MD, Leslie Hyman, PhD, Allen C. Ho, MD, Aaron Y. Lee, MD, MSCI, Cecilia S. Lee, MD, MS, Russ Van Gelder, MD, PhD, Alice Lorch, MD, MPH, Joan W. Miller, MD, Suzann Pershing, MD, MS, and Jeffrey Goldberg, MD, PhD
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Cataract surgery ,High myopia ,Lattice degeneration ,Rhegmatogenous retinal detachment ,Retinal tear ,Ophthalmology ,RE1-994 - Abstract
Objective: To report the incidence of and evaluate demographic, ocular comorbidities, and intraoperative factors for rhegmatogenous retinal detachment (RRD) and retinal tear (RT) after cataract surgery in the American Academy of Ophthalmology IRIS® Registry (Intelligent Research in Sight). Design: Retrospective cohort study. Participants: Patients aged ≥ 40 years who underwent cataract surgery between 2014 and 2017. Methods: Multivariable logistic regression was used to evaluate demographic, comorbidity, and intraoperative factors associated with RRD and RT after cataract surgery. Main Outcome Measures: Incidence and risk factors for RRD or RT within 1 year of cataract surgery. Results: Of the 3 177 195 eyes of 1 983 712 patients included, 6690 (0.21%) developed RRD and 5489 (0.17%) developed RT without RRD within 1 year after cataract surgery. Multivariable logistic regression odds ratios (ORs) showed increased risk of RRD and RT, respectively, among men (OR 3.15; 95% confidence interval [CI], 2.99–3.32; P < 0.001 and 1.79; 95% CI, 1.70–1.89; P < 0.001), and younger ages compared with patients aged > 70, peaking at age 40 to 50 for RRD (8.61; 95% CI, 7.74–9.58; P < 0.001) and age 50 to 60 for RT (2.74; 95% CI, 2.52–2.98; P < 0.001). Increased odds of RRD were observed for procedure eyes with lattice degeneration (LD) (10.53; 95% CI, 9.82–11.28; P < 0.001), hypermature cataract (1.61; 95% CI, 1.06–2.45; P = 0.03), complex cataract surgery (1.52; 95% CI, 1.4–1.66; P < 0.001), posterior vitreous detachment (PVD) (1.24; 95% CI, 1.15–1.34; P < 0.001), and high myopia (1.2; 95% CI, 1.14–1.27; P < 0.001). Lattice degeneration conferred the highest odds of RT (43.86; 95% CI, 41.39–46.49; P < 0.001). Conclusion: In the IRIS Registry, RRD occurs in approximately 1 in 500 cataract surgeries in patients aged > 40 years within 1 year of surgery. The presence of LD conferred the highest odds for RRD and RT after surgery. Additional risk factors for RRD included male gender, younger age, hypermature cataract, PVD, and high myopia. These data may be useful during the informed consent process for cataract surgery and help identify patients at a higher risk of retinal complications. Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.
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- 2023
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20. Corrigendum: Staged use of ordinal and linear disability scales: a practical approach to granular assessment of acute stroke outcome
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Napasri Chaisinanunkul, Sidney Starkman, Jeffrey Gornbein, Scott Hamilton, Fiona Chatfield, Robin Conwit, and Jeffrey L. Saver
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cerebrovascular disease/stroke ,acute cerebral hemorrhage ,acute cerebral infarction ,acute stroke syndromes ,emergency treatment of stroke ,outcome assessment ,Neurology. Diseases of the nervous system ,RC346-429 - Published
- 2023
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21. Why the USA should ratify the UN Convention on the Rights of the Child
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Jeffrey Goldhagen and Hannah Lichtsinn
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Pediatrics ,RJ1-570 - Published
- 2023
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22. 727 Topline safety and efficacy update of SUPLEXA-101, a first-in-human, single agent study of SUPLEXA therapeutic cells in 28 patients with metastatic solid tumours
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Rohit Joshi, Sharron Gargosky, Victoria Atkinson, James A Lederer, Jeffrey Goh, Vineet Kwatra, Warren Joubert, Meena Okera, Sarwan Bishnoi, Frank Borriello, Ganessan Kitchenadasse, and George Nisyrios
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2023
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23. 381 SUPLEXA, a multimodal autologous cellular therapy, shows immunomodulatory behavior in cancer patients consistent with improved anti-tumor immune function
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Rohit Joshi, Sharron Gargosky, Ganessan Kichenadasse, James A Lederer, Jeffrey Goh, Frank Borriello, John F Pulford, Ekaterina Murzin, and Daniel Younger
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2023
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24. Characterisation of the Pacific Oyster Microbiome During a Summer Mortality Event
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Nachshon Siboni, Maurizio Labbate, Justin R. Seymour, Cheryl Jenkins, Jeffrey Go, and William L. King
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0301 basic medicine ,DNA, Bacterial ,Oyster ,030106 microbiology ,Soil Science ,Zoology ,Microbiology ,Animal Diseases ,Disease Outbreaks ,03 medical and health sciences ,biology.animal ,RNA, Ribosomal, 16S ,Animals ,Microbiome ,Crassostrea ,Ecology, Evolution, Behavior and Systematics ,Shellfish ,Vibrio ,Ecology ,biology ,Bacteria ,Vibrio harveyi ,Microbiota ,Australia ,DNA Viruses ,Outbreak ,Pacific oyster ,biology.organism_classification ,Ostreidae ,030104 developmental biology ,Seasons - Abstract
© 2018, Springer Science+Business Media, LLC, part of Springer Nature. The Pacific oyster, Crassostrea gigas, is a key commercial species that is cultivated globally. In recent years, disease outbreaks have heavily impacted C. gigas stocks worldwide, with many losses incurred during summer. A number of infectious agents have been associated with these summer mortality events, including viruses (particularly Ostreid herpesvirus 1, OsHV-1) and bacteria; however, cases where no known aetiological agent can be identified are common. In this study, we examined the microbiome of disease-affected and disease-unaffected C. gigas during a 2013–2014 summer mortality event in Port Stephens (Australia) where known oyster pathogens including OsHV-1 were not detected. The adductor muscle microbiomes of 70 C. gigas samples across 12 study sites in the Port Stephens estuary were characterised using 16S rRNA (V1–V3 region) amplicon sequencing, with the aim of comparing the influence of spatial location and disease state on the oyster microbiome. Spatial location was found to be a significant determinant of the disease-affected oyster microbiome. Furthermore, microbiome comparisons between disease states identified a significant increase in rare operational taxonomic units (OTUs) belonging to Vibrio harveyi and an unidentified member of the Vibrio genus in the disease-affected microbiome. This is indicative of a potential role of Vibrio species in oyster disease and supportive of previous culture-based examination of this mortality event.
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- 2017
25. Vascular malperfusion and abruption are prevalent in placentas from pregnancies with congenital heart disease and not associated with cardiovascular risk
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Marie Altendahl, Thalia Mok, Ekene Adimkpayah, Jeffrey Goldstein, Jeannette Lin, and Yalda Afshar
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Medicine ,Science - Abstract
Abstract Congenital heart disease (CHD) in pregnancy is associated with an increased risk of adverse maternal, obstetric, and neonatal outcomes, plausibly through mechanisms involving abnormal placental development and function. This retrospective study aims to elucidate how maternal CHD influences placental health. Demographic and clinical information were collected via electronic medical record review, and placentas underwent histopathological evaluation. Fifty-three singleton pregnancies were included: 35 participants (66%) were classified as lower cardiovascular risk (modified World Health Organization Classification (mWHO) I, II, II-III), and 18 (34%) were classified as higher cardiovascular risk (mWHO III, IV). 12 participants (23%) had a fetus with small for gestational age (SGA). Maternal vascular malperfusion (53%) and placental abruption (11.6%) were common in this cohort, with prevalence above baseline risk. Participants at higher cardiovascular risk had higher rates of SGA (p = 0.04), subchorionic hematomas (p = 0.01) and birth weight:placental weight
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- 2023
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26. Longitudinal study of winter mortality disease in Sydney rock oysters Saccostrea glomerata
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Melinda Gabor, Zoe B. Spiers, Ryan B. Carnegie, Wayne A. O'Connor, Jane Frances, Shayne A. Fell, Michael Dove, Cheryl Jenkins, I. Marsh, and Jeffrey Go
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medicine.medical_specialty ,Oyster ,Haplosporida ,Zoology ,Aquatic Science ,Host-Parasite Interactions ,Bonamia ostreae ,Water column ,biology.animal ,medicine ,Animals ,Longitudinal Studies ,Ecology, Evolution, Behavior and Systematics ,geography ,geography.geographical_feature_category ,biology ,Ecology ,Haplosporidium nelsoni ,Estuary ,Pacific oyster ,biology.organism_classification ,Ostreidae ,Histopathology ,Bonamia ,Seasons ,New South Wales - Abstract
Winter mortality (WM) is a poorly studied disease affecting Sydney rock oysters Saccostrea glomerata in estuaries in New South Wales, Australia, where it can cause significant losses. WM is more severe in oysters cultured deeper in the water column and appears linked to higher salinities. Current dogma is that WM is caused by the microcell parasite Bonamia roughleyi, but evidence linking clinical signs and histopathology to molecular data identifying bonamiasis is lacking. We conducted a longitudinal study between February and November 2010 in 2 estuaries where WM has occurred (Georges and Shoalhaven Rivers). Results from molecular testing of experimental oysters for Bonamia spp. were compared to clinical disease signs and histopathology. Available environmental data from the study sites were also collated and compared. Oyster condition declined over the study period, coinciding with decreasing water temperatures, and was inversely correlated with the presence of histological lesions. While mortalities occurred in both estuaries, only oysters from the Georges River study site showed gross clinical signs and histological changes characteristic of WM (lesions were prevalent and intralesional microcell-like structures were sometimes noted). PCR testing for Bonamia spp. revealed the presence of an organism belonging to the B. exitiosa-B. roughleyi clade in some samples; however, the very low prevalence of this organism relative to histological changes and the lack of reactivity of affected oysters in subsequent in situ hybridisation experiments led us to conclude that this Bonamia sp. is not responsible for WM. Another aetiological agent and a confluence of environmental factors are a more likely explanation for the disease.
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- 2014
27. RNA-Sequencing of Heterorhabditis nematodes to identify factors involved in symbiosis with Photorhabdus bacteria
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Chaitra G. Bhat, Roli Budhwar, Jeffrey Godwin, Adler R. Dillman, Uma Rao, and Vishal S. Somvanshi
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Biofilm ,Early-adult stage ,Heterorhabditis ,Immunity ,Photorhabdus ,RNA-sequencing ,Biotechnology ,TP248.13-248.65 ,Genetics ,QH426-470 - Abstract
Abstract Background Nematodes are a major group of soil inhabiting organisms. Heterorhabditis nematodes are insect-pathogenic nematodes and live in a close symbiotic association with Photorhabdus bacteria. Heterorhabditis-Photorhabdus pair offers a powerful and genetically tractable model to study animal-microbe symbiosis. It is possible to generate symbiont bacteria free (axenic) stages in Heterorhabditis. Here, we compared the transcriptome of symbiotic early-adult stage Heterorhabditis nematodes with axenic early-adult nematodes to determine the nematode genes and pathways involved in symbiosis with Photorhabdus bacteria. Results A de-novo reference transcriptome assembly of 95.7 Mb was created for H. bacteriophora by using all the reads. The assembly contained 46,599 transcripts with N50 value of 2,681 bp and the average transcript length was 2,054 bp. The differentially expressed transcripts were identified by mapping reads from symbiotic and axenic nematodes to the reference assembly. A total of 754 differentially expressed transcripts were identified in symbiotic nematodes as compared to the axenic nematodes. The ribosomal pathway was identified as the most affected among the differentially expressed transcripts. Additionally, 12,151 transcripts were unique to symbiotic nematodes. Endocytosis, cAMP signalling and focal adhesion were the top three enriched pathways in symbiotic nematodes, while a large number of transcripts coding for various responses against bacteria, such as bacterial recognition, canonical immune signalling pathways, and antimicrobial effectors could also be identified. Conclusions The symbiotic Heterorhabditis nematodes respond to the presence of symbiotic bacteria by expressing various transcripts involved in a multi-layered immune response which might represent non-systemic and evolved localized responses to maintain mutualistic bacteria at non-threatening levels. Subject to further functional validation of the identified transcripts, our findings suggest that Heterorhabditis nematode immune system plays a critical role in maintenance of symbiosis with Photorhabdus bacteria.
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- 2022
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28. De novo assembly and characterization of the draft genome of the cashew (Anacardium occidentale L.)
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Siddanna Savadi, B. M. Muralidhara, Jeffrey Godwin, J. D. Adiga, G. S. Mohana, E. Eradasappa, M. Shamsudheen, and Anitha Karun
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Medicine ,Science - Abstract
Abstract Cashew is the second most important tree nut crop in the global market. Cashew is a diploid and heterozygous species closely related to the mango and pistachio. Its improvement by conventional breeding is slow due to the long juvenile phase. Despite the economic importance, very little genomics/transcriptomics information is available for cashew. In this study, the Oxford nanopore reads and Illumina reads were used for de novo assembly of the cashew genome. The hybrid assembly yielded a 356.6 Mb genome corresponding to 85% of the estimated genome size (419 Mb). The BUSCO analysis showed 91.8% of genome completeness. Transcriptome mapping showed 92.75% transcripts aligned with the assembled genome. Gene predictions resulted in the identification of 31,263 genes coding for a total of 35,000 gene isoforms. About 46% (165 Mb) of the cashew genome comprised of repetitive sequences. Phylogenetic analyses of the cashew with nine species showed that it was closely related to Mangifera indica. Analysis of cashew genome revealed 3104 putative R-genes. The first draft assembly of the genome, transcriptome and R gene information generated in this study would be the foundation for understanding the molecular basis of economic traits and genomics-assisted breeding in cashew.
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- 2022
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29. Predicting the risk of iliofemoral vascular complication in complex transfemoral-TAVR using new generation transcatheter devices
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Ofir Koren, Vivek Patel, Yuval Tamir, Keita Koseki, Danon Kaewkes, Troy Sanders, Robert Naami, Edmund Naami, Daniel Eugene Cheng, Sharon Shalom Natanzon, Alon Shechter, Jeffrey Gornbein, Tarun Chakravarty, Mamoo Nakamura, Wen Cheng, Hasan Jilaihawi, and Raj R. Makkar
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TAVR ,iliofemoral vascular complications ,tortuosity ,risk model ,validation & verification component ,calcification ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
ObjectiveDesign a predictive risk model for minimizing iliofemoral vascular complications (IVC) in a contemporary era of transfemoral-transcatheter aortic valve replacement (TF-TAVR).BackgroundIVC remains a common complication of TF-TAVR despite the technological improvement in the new-generation transcatheter systems (NGTS) and enclosed poor outcomes and quality of life. Currently, there is no accepted tool to assess the IVC risk for calcified and tortuous vessels.MethodsWe reconstructed CT images of 516 propensity-matched TF-TAVR patients using the NGTS to design a predictive anatomical model for IVC and validated it on a new cohort of 609 patients. Age, sex, peripheral artery disease, valve size, and type were used to balance the matched cohort.ResultsIVC occurred in 214 (7.2%) patients. Sheath size (p = 0.02), the sum of angles (SOA) (p 100, in predicting IVC (C-stat 0.936, 95% CI 0.911–0.959, p 1.00 in a tree model increased the overall accuracy to 97.7%. In the validation cohort, the model predicted 89.5% of the IVC cases with an overall 89.5% sensitivity, 98.9% specificity, and 94.2% accuracy (C-stat 0.842, 95% CI 0.904–0.980, p
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- 2023
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30. Staged use of ordinal and linear disability scales: a practical approach to granular assessment of acute stroke outcome
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Napasri Chaisinanunkul, Sidney Starkman, Jeffrey Gornbein, Scott Hamilton, Fiona Chatfield, Robin Conwit, and Jeffrey L. Saver
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cerebrovascular disease/stroke ,acute cerebral hemorrhage ,acute cerebral infarction ,acute stroke syndromes ,emergency treatment of stroke ,outcome assessment ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
BackgroundThe modified Rankin Scale (mRS) assessment of global disability is the most common primary endpoint in acute stroke trials but lacks granularity (7 broad levels) and is ordinal (scale levels unknown distances apart), which constrains study power. Disability scales that are linear and continuous may better discriminate outcomes, but computerized administration in stroke patients is challenging. We, therefore, undertook to develop a staged use of an ordinal followed by a linear scale practical to use in multicenter trials.MethodsConsecutive patients undergoing 3-month final visits in the NIH FAST-MAG phase 3 trial were assessed with the mRS followed by 15 mRS level-specific yes–no items of the Academic Medical Center Linear Disability Score (ALDS), a linear disability scale derived using item response theory.ResultsAmong 55 patients, aged 71.2 (SD ± 14.2), 67% were men and the entry NIHSS was 10.7 (SD ± 9.5). At 90 days, the median mRS score was 3 (IQR, 1–4), and the median ALDS score was 78.8 (IQR, 3.3–100). ALDS scores correlated strongly with 90 days outcome measures, including the Barthel Index (r = 0.92), NIHSS (r = 0.87), and mRS (r = 0.94). ALDS scores also correlated modestly with entry NIHSS (r = 0.38). At 90 days, the ALDS showed greater scale granularity than the mRS, with fewer patients with identical values, 1.9 (SD ± 3.2) vs. 8.0 (SD ± 3.6), p < 0.001. When treatment effect magnitudes were small to moderate, projected trial sample size requirements were 2–12-fold lower when the ALDS rather than the mRS was used as the primary trial endpoint.ConclusionAmong patients enrolled in an acute neuroprotective stroke trial, the ALDS showed strong convergent validity and superior discrimination characteristics compared with the modified Rankin Scale and increased projected trial power to detect clinically meaningful treatment benefits.
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- 2023
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31. Chemoradiation followed by adjuvant durvalumab in stage III non–small cell lung cancer: Real‐world comparison of treatment outcomes to historical controls treated with chemoradiation alone
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Akram Saad, Jeffrey Goldstein, Sarit Appel, Sameh Daher, Damien Urban, Amir Onn, Hadas Gantz‐Sorotsky, Anastasiya Lobachov, Teodor Gottfried, Benjamin Spieler, and Jair Bar
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durvalumab ,immunotherapy ,non–small cell lung cancer ,PD‐L1 ,stage III ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Objective Compare outcomes in patients with stage III non–small cell lung cancer (NSCLC) treated with chemoradiation and adjuvant durvalumab to historical controls treated with chemoradiation alone. Methods The records of patients with stage III NSCLC treated with definitive chemoradiation ± adjuvant durvalumab were reviewed retrospectively. Primary endpoints were progression free survival (PFS), overall survival (OS), and adverse events (AE). Results Between September 2009 and September 2020, 215 patients were treated with concurrent chemoradiation (n = 144) or concurrent chemoradiation followed by adjuvant durvalumab (n = 71). Compared to historical controls, durvalumab use was associated with improved PFS: median (27 months vs. 10 months, p
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- 2022
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32. Artificial Intelligence Detection of Diabetic Retinopathy
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Jennifer Irene Lim, MD, Carl D. Regillo, MD, SriniVas R. Sadda, MD, Eli Ipp, MD, Malavika Bhaskaranand, PhD, Chaithanya Ramachandra, PhD, Kaushal Solanki, PhD, Harvey Dubiner, MD, Grace Levy-Clarke, MD, Richard Pesavento, MD, Mark D. Sherman, MD, Steven Silverstein, MD, Brian Kim, MD, Gerald B. Walman, MD, Barbara A. Blodi, Amitha Domalpally, Susan Reed, James Reimers, Kris Lang, Holy Cohn, Ruth Shaw, Sheila Watson, Andrew Ewen, Nancy Barrett, Maria Swift, and Jeffrey Gornbein
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Artificial intelligence, Diabetic retinopathy, Screening ,Ophthalmology ,RE1-994 - Abstract
Objective: To compare general ophthalmologists, retina specialists, and the EyeArt Artificial Intelligence (AI) system to the clinical reference standard for detecting more than mild diabetic retinopathy (mtmDR). Design: Prospective, pivotal, multicenter trial conducted from April 2017 to May 2018. Participants: Participants were aged ≥ 18 years who had diabetes mellitus and underwent dilated ophthalmoscopy. A total of 521 of 893 participants met these criteria and completed the study protocol. Testing: Participants underwent 2-field fundus photography (macula centered, disc centered) for the EyeArt system, dilated ophthalmoscopy, and 4-widefield stereoscopic dilated fundus photography for reference standard grading. Main Outcome Measures: For mtmDR detection, sensitivity and specificity of EyeArt gradings of 2-field, fundus photographs and ophthalmoscopy grading versus a rigorous clinical reference standard comprising Reading Center grading of 4-widefield stereoscopic dilated fundus photographs using the ETDRS severity scale. The AI system provided automatic eye-level results regarding mtmDR. Results: Overall, 521 participants (999 eyes) at 10 centers underwent dilated ophthalmoscopy: 406 by nonretina and 115 by retina specialists. Reading Center graded 207 positive and 792 eyes negative for mtmDR. Of these 999 eyes, 26 eyes were ungradable by the EyeArt system, leaving 973 eyes with both EyeArt and Reading Center gradings. Retina specialists correctly identified 22 of 37 eyes as positive (sensitivity 59.5%) and 182 of 184 eyes as negative (specificity 98.9%) for mtmDR versus the EyeArt AI system that identified 36 of 37 as positive (sensitivity 97%) and 162 of 184 eyes as negative (specificity of 88%) for mtmDR. General ophthalmologists correctly identified 35 of 170 eyes as positive (sensitivity 20.6%) and 607 of 608 eyes as negative (specificity 99.8%) for mtmDR compared with the EyeArt AI system that identified 164 of 170 as positive (sensitivity 96.5%) and 525 of 608 eyes as negative (specificity 86%) for mtmDR. Conclusions: The AI system had a higher sensitivity for detecting mtmDR than either general ophthalmologists or retina specialists compared with the clinical reference standard. It can potentially serve as a low-cost point-of-care diabetic retinopathy detection tool and help address the diabetic eye screening burden.
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- 2023
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33. Experimental transmission and virulence of a megalocytivirus (Family Iridoviridae) of dwarf gourami (Colisa lalia) from Asia in Murray cod (Maccullochella peelii peelii) in Australia
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Richard Whittington and Jeffrey Go
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food.ingredient ,business.industry ,Iridovirus ,Zoology ,Aquatic Science ,Biology ,Megalocytivirus ,biology.organism_classification ,Fishery ,Gourami ,Murray cod ,food ,Aquaculture ,Dwarf gourami ,Maccullochella ,business ,Kidney necrosis - Abstract
In February 2003 there were 90% losses of Murray cod (Maccullochella peelii peelii) fingerlings in a Victorian aquaculture facility. The disease was caused by a megalocytivirus (Family Iridoviridae) closely related to the recognized species Infectious Spleen and Kidney Necrosis Virus (ISKNV) and strain dwarf gourami iridovirus (DGIV), neither of which had previously been reported from farmed or wild fish in Australia. Experimental transmission trials were undertaken to test the hypothesis that the outbreak could have arisen through introduction of a virus with ornamental gouramis imported from South East Asia. Intraperitoneal injection of Murray cod fingerlings using filtered tissue homogenates from dwarf gourami (Colisa lalia) positive for megalocytivirus DNA by polymerase chain reaction (PCR) resulted in > 90% mortality. Mortality was also induced by cohabitating Murray cod fingerlings and dwarf gourami; as the fish were physically separated, the virus spread between the two species via water. Histopathology revealed lesions identical to those reported in the Victorian outbreak, 125–130 nm icosahedral virions were observed in lesions and most exposed fish were PCR positive. DNA sequencing confirmed 99.9 to 100% homology of major capsid protein and ATPase nucleotide sequences between DGIV, ISKNV, the viral inoculum obtained from dwarf gourami and virus present in experimentally infected Murray cod. These findings confirm that Murray cod are highly susceptible to a megalocytivirus present in ornamental fish imported from South East Asia. The implications for aquaculture, conservation of native fish and quarantine policy are discussed.
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- 2006
34. The molecular epidemiology of iridovirus in Murray cod (Maccullochella peelii peelii) and dwarf gourami (Colisa lalia) from distant biogeographical regions suggests a link between trade in ornamental fish and emerging iridoviral diseases
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Jeffrey Go, Om P. Dhungyel, Malcolm Lancaster, Richard Whittington, and Kylie Deece
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food.ingredient ,Iridovirus ,Molecular Sequence Data ,Zoology ,Genome, Viral ,Megalocytivirus ,Polymerase Chain Reaction ,Fish Diseases ,Murray cod ,food ,Dwarf gourami ,medicine ,Animals ,Molecular Biology ,Phylogeny ,Epizootic ,DNA Primers ,Molecular Epidemiology ,Base Sequence ,Geography ,biology ,Australia ,Fishes ,Cell Biology ,biology.organism_classification ,medicine.disease ,DNA Virus Infections ,Sea Bream ,Fishery ,Gourami ,DNA, Viral ,Maccullochella ,Kidney necrosis - Abstract
Iridoviruses have emerged over 20 years to cause epizootics in finfish and amphibians in many countries. They may have originated in tropical Asia and spread through trade in farmed food fish or ornamental fish, but this has been difficult to prove. Consequently, MCP, ATPase and other viral genes were sequenced from archival formalin-fixed, paraffin-embedded tissues from farmed Murray cod (Maccullochella peelii peelii) that died during an epizootic in 2003 and from diseased gouramis that had been imported from Asia. There was almost complete homology (99.95%) over 4527 bp between Murray cod iridovirus (MCIV) and an iridovirus (DGIV) present in dwarf gourami (Colisa lalia) that had died in aquarium shops in Australia in 2004, and very high homology with infectious spleen and kidney necrosis virus (ISKNV) (99.9%). These viruses are most likely to be a single species within the genus Megalocytivirus and probably have a common geographic origin. Primers for genus-specific PCR and for rapid discrimination of MCIV/DGIV/ISKNV and red sea bream iridovirus (RSIV), a notifiable pathogen, were developed. These were used in a survey to determine that the prevalence of DGIV infection in diseased gourami in retail aquarium shops in Sydney was 22% (95% confidence limits 15–31%). The global trade in ornamental fish may facilitate the spread of Megalocytivirus and enable emergence of disease in new host species in distant biogeographic regions.
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- 2006
35. Real‐world first‐line systemic therapy patterns in metastatic castration‐resistant prostate cancer
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Angelyn Anton, Sruti Pillai, Marie Christine Semira, Shirley Wong, Julia Shapiro, Andrew Weickhardt, Arun Azad, Edmond M. Kwan, Lavinia Spain, Ashray Gunjur, Javier Torres, Phillip Parente, Francis Parnis, Jeffrey Goh, Olivia Baenziger, Peter Gibbs, and Ben Tran
- Subjects
abiraterone ,docetaxel ,enzalutamide ,metastatic castration‐resistant prostate cancer ,real‐world data ,systemic therapy ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Introduction Several systemic therapies have demonstrated a survival advantage in metastatic castration resistant prostate cancer (mCRPC). Access to these medications varies significantly worldwide. In Australia until recently, patients must have received docetaxel first, unless unsuitable for chemotherapy, despite no evidence suggesting superiority over androgen receptor signalling inhibitors (ARSIs). Our study investigated real‐world systemic treatment patterns in Australian patients with mCRPC. Methods The electronic CRPC Australian Database (ePAD) was interrogated to identify mCRPC patients. Clinicopathological features, treatment and outcome data, stratified by first‐line systemic therapies, were extracted. Comparisons between groups utilised Kruskal–Wallis tests and Chi‐Square analyses. Time‐to‐event data were calculated using Kaplan–Meier methods and groups compared using log‐rank tests. Factors influencing overall survival (OS) and time to treatment failure (TTF) were analysed through Cox proportional hazards regression models. Results We identified 578 patients who received first‐line systemic therapy for mCRPC. Enzalutamide (ENZ) was most commonly prescribed (n = 240, 41%), followed by docetaxel (DOC, n = 164, 28%) and abiraterone (AA, n = 100, 17%). Patients receiving ENZ or AA were older (79, 78.5 years respectively) compared with DOC (71 years, p = 0.001) and less likely to have ECOG performance status 0 (45%, 44%, 59% in ENZ, AA and DOC groups respectively p 12 months was independently associated with longer TTF (HR 0.67, p
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- 2022
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36. Analytical Performance and Concordance with Next-Generation Sequencing of a Rapid, Multiplexed dPCR Panel for the Detection of DNA and RNA Biomarkers in Non-Small-Cell Lung Cancer
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Kerri Cabrera, Jeffrey Gole, Bryan Leatham, Matthew J. Springer, Molly Smith, Leah Herdt, Lucien Jacky, and Bradley A. Brown
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multiplex ,digital PCR ,NSCLC ,Medicine (General) ,R5-920 - Abstract
FDA approval of targeted therapies for lung cancer has significantly improved patient survival rates. Despite these improvements, barriers to timely access to biomarker information, such as nucleic acid input, still exist. Here, we report the analytical performance and concordance with next-generation sequencing (NGS) of a highly multiplexed research-use-only (RUO) panel using digital PCR (dPCR). The panel’s analytical sensitivity and reactivity were determined using contrived DNA and RNA mixes. The limit of blank was established by testing FFPE curls classified as negative by pathology. Concordance was established on 77 FFPE samples previously characterized using the Oncomine Precision Assay®, and any discordant results were resolved with Archer Fusionplex® and Variantplex® panels. The analytical sensitivity, reported as the estimated mutant allele fraction (MAF), for DNA targets ranged from 0.1 to 0.9%. For RNA targets (ALK, RET, ROS, NTRK 1/2/3 Fusions, and MET Exon 14 skipping alteration), the analytical sensitivity ranged from 23 to 101 detected counts with 5 ng of total RNA input. The population prevalence-based coverage ranged from 89.2% to 100.0% across targets and exceeded 99.0% in aggregate. The assay demonstrated >97% concordance with respect to the comparator method.
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- 2023
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37. The Usefulness of Elastin Staining to Detect Vascular Invasion in Cancer
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Jeffrey Gonzalez, Hisham F. Bahmad, Stephanie Ocejo, Alvaro Abreu, Meagan Popp, Samantha Gogola, Vielka Fernandez, Monica Recine, and Robert Poppiti
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lymphovascular invasion ,angioinvasion ,venous invasion ,TNM classification ,staging ,immunohistochemistry ,Biology (General) ,QH301-705.5 ,Chemistry ,QD1-999 - Abstract
Tumor prognosis hinges on accurate cancer staging, a pivotal process influenced by the identification of lymphovascular invasion (LVI), i.e., blood vessel and lymphatic vessel invasion. Protocols by the College of American Pathologists (CAP) and the World Health Organization (WHO) have been established to assess LVI in various tumor types, including, but not limited to, breast cancer, colorectal cancer (CRC), pancreatic exocrine tumors, and thyroid carcinomas. The CAP refers to blood vessel invasion as “angioinvasion” (vascular invasion) to differentiate it from lymphatic vessel invasion (lymphatic invasion). For clarity, the latter terms will be used throughout this review. The presence of lymphatic and/or vascular invasion has emerged as a pivotal prognostic factor; therefore, its accurate identification is crucial not only for staging but also for providing the patient with an honest understanding of his/her prognosis. Given the prognostic importance of the correct identification of LVI, specific staining techniques are employed to distinguish lymphatic vessel invasion from angioinvasion and to differentiate true LVI from artifact. These encompass hematoxylin and eosin (H&E) staining, elastic staining, Factor VIII staining, Ulex europaeus I agglutinin staining, CD31, CD34, D2-40, ERG, and D2-40 (podoplanin) immunohistochemical (IHC) stains among others. Based on a review of numerous publications regarding the efficacy of various methods for LVI detection, elastin staining demonstrated superior accuracy and prognostic value, allowing for more targeted treatment strategies. The clinical significance of accurately detecting LVI cannot be overstated, as it is strongly linked to higher cancer-related mortality and an increased risk of tumor recurrence. This review aims to examine the existing literature on the use of elastin stains in the detection of vascular invasion among different types of tumors and its prognostic value.
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- 2023
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38. Microcavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors
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Raj Pandya, Richard Y. S. Chen, Qifei Gu, Jooyoung Sung, Christoph Schnedermann, Oluwafemi S. Ojambati, Rohit Chikkaraddy, Jeffrey Gorman, Gianni Jacucci, Olimpia D. Onelli, Tom Willhammar, Duncan N. Johnstone, Sean M. Collins, Paul A. Midgley, Florian Auras, Tomi Baikie, Rahul Jayaprakash, Fabrice Mathevet, Richard Soucek, Matthew Du, Antonios M. Alvertis, Arjun Ashoka, Silvia Vignolini, David G. Lidzey, Jeremy J. Baumberg, Richard H. Friend, Thierry Barisien, Laurent Legrand, Alex W. Chin, Joel Yuen-Zhou, Semion K. Saikin, Philipp Kukura, Andrew J. Musser, and Akshay Rao
- Subjects
Science - Abstract
Exciton-polaritons are typically formed in organic systems when the molecules are confined between metallic or dielectric mirrors. Here, the authors reveal that interactions between excitons and moderately confined photonic states within the bare organic film can also lead to polariton formation, making them the primary photoexcitation.
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- 2021
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39. Neural‐hematopoietic‐inflammatory axis in nonsmokers, electronic cigarette users, and tobacco smokers
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Isabelle Ruedisueli, Sara Arastoo, Pawan K. Gupta, Jeffrey Gornbein, and Holly R. Middlekauff
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electronic cigarette ,FDG‐PET/CT ,inflammation ,tobacco smokers ,Physiology ,QP1-981 - Abstract
Abstract Amygdala activity in context of the splenocardiac model has not been investigated in healthy, young adults and has not been compared between nonsmokers, electronic cigarette users, and smokers. The purpose of the current study was to determine whether fluorodeoxyglucose positron emission tomography/computer tomography (FDG PET/CT) scans would demonstrate positively correlated metabolic activity in the amygdala, bone marrow, spleen, and aorta, elucidating activation of the splenocardiac axis in otherwise healthy young people who use tobacco products compared to nonusers. Moreover, the study was conducted to evaluate whether electronic cigarette users and tobacco smokers have similar levels of inflammation compared to nonusers. In 45 healthy adults (mean age = 25 years), including nonsmoker (n = 15), electronic cigarette user (n = 16), and smoker (n = 14) groups, metabolic activity in the amygdala, spleen, aorta, bone marrow of thoracic vertebrae, and adjacent erector spinae skeletal muscle was quantified through visualization of radioactive glucose (18FDG) uptake by FDG‐PET/CT. The maximum standardized uptake value for each region was calculated for correlation analyses and comparisons between groups. In correlation analyses, metabolic activity of the amygdala correlated with metabolic activity in the aorta (r = 0.757), bone marrow (r = 0.750), and spleen (r = 0.665), respectively. Metabolic activity in the aorta correlated with 18FDG uptake in the thoracic vertebrae (r = 0.703) and spleen (r = 0.594), respectively. Metabolic activity in the spleen also correlated with 18FDG uptake in the bone marrow (r = 0.620). Metabolic activity in the adjacent erector spinae skeletal muscle (our control tissue) was not positively correlated with any other region of interest. Finally, there were no statistically significant mean differences in metabolic activity between the three groups: nonsmokers, electronic cigarette users, and smokers in any target tissue. Amygdala metabolic activity, as measured by 18FDG uptake in FDG‐PET/CT scans, positively correlated with inflammation in the splenocardiac tissues, including: the aorta, bone marrow, and spleen, underscoring the existence of a neural‐hematopoietic‐inflammatory axis in healthy, young adults.
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- 2022
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40. Curvularia infection presenting as recurrent conjunctival erosion overlying a scleral-fixated intraocular lens suture
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Sruthi Arepalli, Jeffrey Goshe, and Aleksandra Rachitskaya
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Curvularia ,Scleral- fixated intraocular lens ,Fungal ,Ophthalmology ,RE1-994 - Abstract
Purpose: To describe a case of an indolent, chronic Curvularia infection after a ruptured globe injury from an intraocular metallic foreign body in a 38-year old male. Following globe repair and vitrectomy, the patient underwent a sutured scleral-fixated lens. The patient subsequently presented with recurrent painless conjunctival erosion associated with small, pigmented skip lesions of the exposed suture. Observation: Indolent, chronic Curvularia infections can present with subtle signs, including small areas of suture exposure and pigmentation as well as and small ciliary body collections. Conclusion: Recurrent conjunctival erosion in cases of secondary sutured scleral fixated intraocular lenses should prompt evaluation for possible infectious etiology.
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- 2022
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41. Factors associated with delays in medical and surgical open facial fracture management
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David Hamilton, David Bar-Or, Kaysie L Banton, Therese M Duane, Erica Sercy, Jeffrey Gordon, Brian Blackwood, Andrew Hentzen, Matthew Hatch, and Kerrick Akinola
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Surgery ,RD1-811 ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Objectives Open fractures are at risk of infection because of exposure of bone and tissue to the environment. Facial fractures are often accompanied by other severe injuries, and therefore fracture management may be delayed until after stabilization. Previous studies in this area have examined timing of multiple facets of care but have tended to report on each in isolation (eg, antibiotic initiation).Methods This was a retrospective study of adult patients admitted to five trauma centers from January 1, 2017 to March 31, 2021 with open facial fractures. Variables collected included demographics, injury mechanism, details on facial and non-facial injuries, facial fracture management (irrigation and debridement (I&D), irrigation without debridement, open reduction internal fixation (ORIF), antibiotics), and other hospital events. The study hypothesized that the presence of serious non-facial injuries would be associated with delays in facial fracture management. The primary aims were to describe open facial fracture management practices and examine factors associated with early versus delayed fracture management. A secondary aim was to describe infection rates. Early treatment was defined as within 24 hours of arrival for I&D, irrigation without debridement, and ORIF and within 1 hour for antibiotics.Results A total of 256 patients were included. Twenty-seven percent had major trauma (Injury Severity Score ≥16). The presence of serious head injury/traumatic brain injury was associated with delayed I&D (ORearly=0.04, p
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- 2022
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42. Dissimilar Atrial Rhythms Seen by Transesophageal Echocardiography During an Electrophysiology StudyNovel Teaching Points
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Natasha Cuk, MD, Jeffrey Goodman, MD, and Charles Pollick, MBChB, FRCPC
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Dissimilar atrial rhythms describe the coexistence of atrial fibrillation in one atrium and a more regular rhythm in the other. Electrograms are typically used to diagnose this rare entity. The use of transesophageal echocardiography in this context has not been described previously. We present a case of an 88-year-old woman with paroxysmal atrial fibrillation and new-onset, symptomatic atrial flutter who underwent electrophysiology study that confirmed dissimilar atrial rhythms. Transesophageal echocardiography images reveal differential function of the left and right atrial appendages, a novel finding that may be useful in diagnosing this rhythm disorder. Résumé: Des rythmes atriaux dissimilaires montrent la coexistence d’une fibrillation auriculaire dans un atrium et un rythme plus régulier dans l’autre. Les électrogrammes sont généralement utilisés pour détecter cette entité rare. L’utilisation de l’échocardiographie transœsophagienne dans ce contexte n’a pas été décrite auparavant. Nous présentons le cas d’une femme de 88 ans atteinte de fibrillation auriculaire paroxystique et de flutter auriculaire symptomatique d’apparition récente dont l’étude électrophysiologique a permis de confirmer des rythmes atriaux dissimilaires. Les images de l’électrocardiographie transœsophagienne révèlent le fonctionnement distinct des appendices auriculaires gauche et droite, une nouvelle observation qui peut être utile à la détection de cette irrégularité du rythme.
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- 2022
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43. Identification and characterisation of an ostreid herpesvirus-1 microvariant (OsHV-1 µ-var) in Crassostrea gigas (Pacific oysters) in Australia
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Jane Frances, Wayne A. O'Connor, Michael Dove, Jeffrey Go, Peter D. Kirkland, Shayne A. Fell, Paul Hick, Zoe B. Spiers, Xingnian Gu, Cheryl Jenkins, AJ Read, and Melinda Gabor
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Oyster ,Zoology ,Aquatic Science ,Algal bloom ,Polymerase Chain Reaction ,Aquaculture ,biology.animal ,Animals ,Crassostrea ,Ecology, Evolution, Behavior and Systematics ,Herpesviridae ,Phylogeny ,Vibrio ,geography ,geography.geographical_feature_category ,biology ,business.industry ,fungi ,Environmental stressor ,Australia ,Outbreak ,Genetic Variation ,Estuary ,biology.organism_classification ,Fishery ,Host-Pathogen Interactions ,business ,Bay - Abstract
Between November 2010 and January 2011, triploid Crassostrea gigas (Pacific oysters) cultivated in the Georges River, New South Wales, experienced >95% mortality. Mortalities also occurred in wild diploid C. gigas in the Georges River and shortly thereafter in the adjacent Parramatta River estuary upstream from Sydney Harbour. Neighbouring Saccostrea glomerata (Sydney rock oysters) did not experience mortalities in either estuary. Surviving oysters were collected to investigate the cause of mortalities. Histologically all oysters displayed significant pathology, and molecular testing revealed a high prevalence of ostreid herpesvirus-1 (OsHV-1). Quantitative PCR indicated that many C. gigas were carrying a high viral load at the time of sampling, while the load in S. glomerata was significantly lower (p < 0.001). Subsequent in situ hybridisation experiments confirmed the presence of a herpesvirus in C. gigas but not S. glomerata tissues, suggesting that S. glomerata is not susceptible to infection with OsHV-1. Naive sentinel triploid C. gigas placed in the Georges River estuary in January 2011 quickly became infected and experienced nearly 100% mortality within 2 wk of exposure, indicating the persistence of the virus in the environment. Phylogenetic analysis of sequences derived from the C2/C6 region of the virus revealed that the Australian strain of OsHV-1 belongs to the microvariant (µ-var) cluster, which has been associated with severe mortalities in C. gigas in other countries since 2008. Environmental data revealed that the Woolooware Bay outbreaks occurred during a time of considerable environmental disturbance, with increased water temperatures, heavy rainfall, a toxic phytoplankton bloom and the presence of a pathogenic Vibrio sp. all potentially contributing to oyster stress. This is the first confirmed report of OsHV-1 µ-var related C. gigas mortalities in Australia.
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- 2013
44. The Spatiotemporal Distribution, Abundance, and Seasonal Dynamics of Cotton-Infesting Aphids in the Southern U.S.
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John W. Mahas, Jessica B. Mahas, Charles Ray, Adam Kesheimer, Todd D. Steury, Sophia R. Conzemius, Whitney Crow, Jeffrey Gore, Jeremy K. Greene, George G. Kennedy, David Kerns, Sean Malone, Silvana Paula-Moraes, Phillip Roberts, Scott D. Stewart, Sally Taylor, Michael Toews, and Alana L. Jacobson
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Aphididae ,Aphis gossypii ,Solemoviridae ,CLRDV ,crop ,vector-borne ,Science - Abstract
Cotton leafroll dwarf virus (CLRDV) is an emerging aphid-borne pathogen infecting cotton, Gossypium hirsutum L., in the southern United States (U.S.). The cotton aphid, Aphis gossypii Glover, infests cotton annually and is the only known vector to transmit CLRDV to cotton. Seven other species have been reported to feed on, but not often infest, cotton: Protaphis middletonii Thomas, Aphis craccivora Koch, Aphis fabae Scopoli, Macrosiphum euphorbiae Thomas, Myzus persicae Sulzer, Rhopalosiphum rufiabdominale Sasaki, and Smynthurodes betae Westwood. These seven have not been studied in cotton, but due to their potential epidemiological importance, an understanding of the intra- and inter-annual variations of these species is needed. In 2020 and 2021, aphids were monitored from North Carolina to Texas using pan traps around cotton fields. All of the species known to infest cotton, excluding A. fabae, were detected in this study. Protaphis middletonii and A. gossypii were the most abundant species identified. The five other species of aphids captured were consistently low throughout the study and, with the exception of R. rufiabdominale, were not detected at all locations. The abundance, distribution, and seasonal dynamics of cotton-infesting aphids across the southern U.S. are discussed.
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- 2023
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45. Extended Sentinel Monitoring of Helicoverpa zea Resistance to Cry and Vip3Aa Toxins in Bt Sweet Corn: Assessing Changes in Phenotypic and Allele Frequencies of Resistance
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Galen P. Dively, Tom P. Kuhar, Sally V. Taylor, Helene Doughty, Kristian Holmstrom, Daniel O. Gilrein, Brian A. Nault, Joseph Ingerson-Mahar, Anders Huseth, Dominic Reisig, Shelby Fleischer, David Owens, Kelley Tilmon, Francis Reay-Jones, Pat Porter, Jocelyn Smith, Julien Saguez, Jason Wells, Caitlin Congdon, Holly Byker, Bryan Jensen, Chris DiFonzo, William D. Hutchison, Eric Burkness, Robert Wright, Michael Crossley, Heather Darby, Tom Bilbo, Nicholas Seiter, Christian Krupke, Craig Abel, Brad S. Coates, Bradley McManus, Billy Fuller, Jeffrey Bradshaw, Julie A. Peterson, David Buntin, Silvana Paula-Moraes, Katelyn Kesheimer, Whitney Crow, Jeffrey Gore, Fangneng Huang, Dalton C. Ludwick, Amy Raudenbush, Sebastian Jimenez, Yves Carrière, Timothy Elkner, and Kelly Hamby
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corn earworm ,bollworm ,resistance monitoring ,Bacillus thuringiensis toxins ,phenotypic and allele resistance frequency ,Science - Abstract
Transgenic corn and cotton that produce Cry and Vip3Aa toxins derived from Bacillus thuringiensis (Bt) are widely planted in the United States to control lepidopteran pests. The sustainability of these Bt crops is threatened because the corn earworm/bollworm, Helicoverpa zea (Boddie), is evolving a resistance to these toxins. Using Bt sweet corn as a sentinel plant to monitor the evolution of resistance, collaborators established 146 trials in twenty-five states and five Canadian provinces during 2020–2022. The study evaluated overall changes in the phenotypic frequency of resistance (the ratio of larval densities in Bt ears relative to densities in non-Bt ears) in H. zea populations and the range of resistance allele frequencies for Cry1Ab and Vip3Aa. The results revealed a widespread resistance to Cry1Ab, Cry2Ab2, and Cry1A.105 Cry toxins, with higher numbers of larvae surviving in Bt ears than in non-Bt ears at many trial locations. Depending on assumptions about the inheritance of resistance, allele frequencies for Cry1Ab ranged from 0.465 (dominant resistance) to 0.995 (recessive resistance). Although Vip3Aa provided high control efficacy against H. zea, the results show a notable increase in ear damage and a number of surviving older larvae, particularly at southern locations. Assuming recessive resistance, the estimated resistance allele frequencies for Vip3Aa ranged from 0.115 in the Gulf states to 0.032 at more northern locations. These findings indicate that better resistance management practices are urgently needed to sustain efficacy the of corn and cotton that produce Vip3Aa.
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- 2023
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46. Hedging Planetary Risks: ‘From Weapons of Mass Destruction to Tools of Massive Social and Ecological Innovation’
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Stefan Brunnhuber, Mariana Bozesan, Jeffrey Golden, Garry Jacobs, and Phoebe Koundouri
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International relations ,JZ2-6530 ,Economic growth, development, planning ,HD72-88 - Abstract
Cost analyses and risk assessments in the Anthropocene era need to differ from those of the past. Future developments now are determined by opportunity costs and planetary risks. We provide a first comprehensive systematization that can serve as a template for blended finance and blended securitization in order to finance our global commons. We show that financing our future requires multiple new financial engineering techniques that build upon the experiences of the private sector, but need to be adapted to meet the criteria of force majeure and planetary risks.
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- 2021
47. Optimizing ECG lead selection for detection of prolongation of ventricular repolarization as measured by the Tpeak‐end interval
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Isabelle Ruedisueli, Joyce Ma, Randy Nguyen, Karishma Lakhani, Jeffrey Gornbein, and Holly R. Middlekauff
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sudden death ,Tp‐e/QT ,Tp‐e/QTc ,Tpeak‐end ,ventricular repolarization ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Background The Tpeak‐end(Tp‐e) has not been compared in all 12 ECG leads in healthy adults to determine if the Tp‐e varies across leads. If there is variation, it remains uncertain, which lead(s) are preferred for recording in order to capture the maximal Tp‐e value. Objective The purpose of the current study was to determine the optimal leads, if any, to capture the maximal Tp‐e interval in healthy young adults. Methods In 88 healthy adults (ages 21–38 years), including derivation (n = 21), validation (n = 20), and smoker/vaper (n = 47) cohorts, the Tp‐e was measured using commercial computer software (LabChart Pro 8 with ECG module, ADInstruments) in all 12 leads at rest and following a provocative maneuver, abrupt standing. Tp‐e was compared to determine which lead(s) most frequently captured the maximal Tp‐e interval. Results In the rest and abrupt standing positions, the Tp‐e was not uniform among the 12 leads; the maximal Tp‐e was most frequently captured in the precordial leads. At rest, grouping leads V2–V4 resulted in detection of the maximum Tp‐e in 85.7% of participants (CI 70.7, 99.9%) versus all other leads (p
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- 2022
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48. Cytotoxic T Lymphocyte Antigen 4 Haploinsufficiency Presenting As Refractory Celiac-Like Disease: Case Report
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Lauren V. Collen, Carlos Andres Salgado, Bin Bao, Erin Janssen, Dascha Weir, Jeffrey Goldsmith, Alan Leichtner, Nasim Sabery Khavari, Yael Gernez, and Scott B. Snapper
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CTLA4 haploinsufficiency ,refractory celiac disease ,celiac disease ,primary immunodeficencies (PID) ,abatacept ,CTLA4 deficiency ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Primary immunodeficiency may present with treatment-refractory enteropathy. We present two patients with celiac/celiac-like disease diagnosed in early childhood and refractory to the gluten-free diet. One patient had features of multi-system autoimmunity, whereas the other had celiac-like disease as an isolated clinical finding. Both patients underwent genetic testing given disease refractoriness and were ultimately diagnosed with cytotoxic T lymphocyte antigen 4 (CTLA4) haploinsufficiency. They are both now in complete clinical and endoscopic remission on abatacept. CTLA4 haploinsufficiency has incomplete penetrance and significant phenotypic heterogeneity but should be considered in the differential diagnosis of refractory celiac/celiac-like disease, as treatment implications are significant.
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- 2022
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49. Consumer Impressions of the Safety and Effectiveness of OTC Medicines
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Jeffrey Gordon Taylor, Stephen Ayosanmi, and Sujit S. Sansgiry
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OTC medicines ,safety ,effectiveness ,product familiarity ,public opinion ,Pharmacy and materia medica ,RS1-441 - Abstract
The public generally believes OTC medicines to be helpful for treating minor ailments. From a survey point of view, that position often originates from feedback obtained when these medicines are considered as one broad category. The objective of the study was to assess the properties of 15 categories of agents across three dimensions—effectiveness, safety, and familiarity. Data were gathered via an online non-random survey in one Canadian province, where residents were asked to consider 15 OTC medicine categories in terms of those dimensions. Five hundred and seventy-five completed surveys were obtained out of 3000 sent. On the 10-point effectiveness scale, values ranged from 5.1 (Athlete’s foot cream) to 7.3 (headache medicine). For safety, the medicines were closely grouped (6.0 to 7.4). Cough syrups for children were perceived as less safe than those for adults. There was a trend in that, as product familiarity grew, so did impressions of safety and effectiveness. The results support other reports where OTC medicines are described as safe and effective, although safety ratings were not particularly high. Responders considered these medicines to generally be higher in safety than effectiveness.
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- 2023
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50. Mitigating saliva aerosol contamination in a dental school clinic
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Maobin Yang, Asad Chaghtai, Marc Melendez, Hana Hasson, Eugene Whitaker, Mustafa Badi, Leona Sperrazza, Jeffrey Godel, Cemil Yesilsoy, Marisol Tellez, Santiago Orrego, Carolina Montoya, and Amid Ismail
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Aerosol ,Dentistry ,SARS‐CoV‐2 ,COVID-19 ,High-speed suction ,Extra oral suction system ,RK1-715 - Abstract
Abstract Background Transmission of COVID-19 via salivary aerosol particles generated when using handpieces or ultrasonic scalers is a major concern during the COVID-19 pandemic. The aim of this study was to assess the spread of dental aerosols on patients and dental providers during aerosol-generating dental procedures. Methods This pilot study was conducted with one volunteer. A dental unit used at the dental school for general dental care was the site of the experiment. Before the study, three measurement meters (DustTrak 8534, PTrak 8525 and AeroTrak 9306) were used to measure the ambient distribution of particles in the ambient air surrounding the dental chair. The volunteer wore a bouffant, goggles, and shoe covers and was seated in the dental chair in supine position, and covered with a surgical drape. The dentist and dental assistant donned bouffant, goggles, face shields, N95 masks, surgical gowns and shoe covers. The simulation was conducted by using a high-speed handpiece with a diamond bur operating in the oral cavity for 6 min without touching the teeth. A new set of measurement was obtained while using an ultrasonic scaler to clean all teeth of the volunteer. For both aerosol generating procedures, the aerosol particles were measured with the use of saliva ejector (SE) and high-speed suction (HSS) followed a separate set of measurement with the additional use of an extra oral high-volume suction (HVS) unit that was placed close to the mouth to capture the aerosol in addition to SE and HSS. The distribution of the air particles, including the size and concentration of aerosols, was measured around the patient, dentist, dental assistant, 3 feet above the patient, and the floor. Results Four locations were identified with elevated aerosol levels compared to the baseline, including the chest of the dentist, the chest of patient, the chest of assistant and 3 feet above the patient. The use of additional extra oral high volume suction reduced aerosol to or below the baseline level. Conclusions The increase of the level of aerosol with size less than 10 µm was minimal during dental procedures when using SE and HSS. Use of HVS further reduced aerosol levels below the ambient levels.
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- 2021
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