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Larson AT, Boyle B, Labrecque J, Ly A, Bui C, Vasylevskyi S, Rose MJ. Synthesis and Conformational Dynamics of Selenanthrene (Oxides): Establishing an Energetic Flexibility Index for Scaffolds. Inorg Chem 2024. [PMID: 38758580 DOI: 10.1021/acs.inorgchem.4c00658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
The use of new dynamic scaffolds for constructing inorganic and organometallic complexes with enhanced reactivities is an important new research direction. Toward this fundamental aim, an improved synthesis of the dynamic scaffold selenanthrene, along with its monoxide, trans-dioxide and the previously unknown trioxide, is reported. A discussion of the potential reaction mechanism for selenanthrene is provided, and all products were characterized using 1H, 13C, and 77Se nuclear magnetic resonance (NMR) spectroscopy and single-crystal X-ray crystallography. The dynamic ring inversion processes (i.e., "butterfly motion") for selenanthrene and its oxides were investigated using variable-temperature 1H NMR and density functional theory calculations. The findings suggest that selenanthrene possesses a roughly equal barrier to inversion as its sulfur analogue, thianthrene. However, selenanthrene oxides evidently possess larger inversion barriers as compared to their sulfur analogues due to the enhanced electrostatic intramolecular interactions inherent between the highly polar selenium-oxygen bond and adjacent C-H moieties. Finally, we propose a quantitative "flexibility index" in deg/(kcal/mol) for various tricyclic scaffolds to provide researchers with a comparative scale of dynamic motion across many different systems.
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Affiliation(s)
- Alec T Larson
- Department of Chemistry, University of Texas at Austin, Austin, 105 E 24th Street, Austin, Texas 78712, United States
| | - Brett Boyle
- Department of Chemistry, University of Texas at Austin, Austin, 105 E 24th Street, Austin, Texas 78712, United States
| | - Jordan Labrecque
- Department of Chemistry, University of Texas at Austin, Austin, 105 E 24th Street, Austin, Texas 78712, United States
| | - Anh Ly
- Department of Chemistry, University of Texas at Austin, Austin, 105 E 24th Street, Austin, Texas 78712, United States
| | - Cecilia Bui
- Department of Chemistry, University of Texas at Austin, Austin, 105 E 24th Street, Austin, Texas 78712, United States
| | - Serhii Vasylevskyi
- Department of Chemistry, University of Texas at Austin, Austin, 105 E 24th Street, Austin, Texas 78712, United States
| | - Michael J Rose
- Department of Chemistry, University of Texas at Austin, Austin, 105 E 24th Street, Austin, Texas 78712, United States
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Madigan S, Deneault AA, Duschinsky R, Bakermans-Kranenburg MJ, Schuengel C, van IJzendoorn MH, Ly A, Fearon RMP, Eirich R, Verhage ML. Maternal and paternal sensitivity: Key determinants of child attachment security examined through meta-analysis. Psychol Bull 2024:2024-81136-001. [PMID: 38709619 DOI: 10.1037/bul0000433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Sensitive caregiving behavior, which involves the ability to notice, interpret, and quickly respond to a child's signals of need and/or interest, is a central determinant of secure child-caregiver attachment. Yet, significant heterogeneity in effect sizes exists across the literature, and sources of heterogeneity have yet to be explained. For all child-caregiver dyads, there was a significant and positive pooled association between caregiver sensitivity and parent-child attachment (r = .25, 95% CI [.22, .28], k = 174, 230 effect sizes, N = 22,914). We also found a positive association between maternal sensitivity and child attachment security (r = .26, 95% CI [.22, .29], k = 159, 202 effect sizes, N = 21,483), which was equivalent in magnitude to paternal sensitivity and child attachment security (r = .21, 95% CI [.14, 27], k = 22, 23 effect sizes, N = 1,626). Maternal sensitivity was also negatively associated with all three classifications of insecure attachment (avoidant: k = 43, r = -.24 [-.34, -.13]; resistant: k = 43, r = -.12 [-.19, -.06]; disorganized: k = 24, r = -.19 [-.27, -.11]). For maternal sensitivity, associations were larger in studies that used the Attachment Q-Sort (vs. the Strange Situation), used the Maternal Behavior Q-Sort (vs. Ainsworth or Emotional Availability Scales), had strong (vs. poor) interrater measurement reliability, had a longer observation of sensitivity, and had less time elapse between assessments. For paternal sensitivity, associations were larger in older (vs. younger) fathers and children. These findings confirm the importance of both maternal and paternal sensitivity for the development of child attachment security and add understanding of the methodological and substantive factors that allow this effect to be observed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Affiliation(s)
| | | | - Robbie Duschinsky
- Department of Public Health and Primary Care, Primary Care Unit, University of Cambridge
| | | | | | | | - Anh Ly
- Department of Psychology, University of Calgary
| | - R M Pasco Fearon
- Department of Psychology, Centre for Family Research, University of Cambridge
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Henderson R, Furlano JA, Claringbold SS, Cornect-Benoit A, Ly A, Walker J, Zaretsky L, Roach P. Colonial drivers and cultural protectors of brain health among Indigenous peoples internationally. Front Public Health 2024; 12:1346753. [PMID: 38425465 PMCID: PMC10903363 DOI: 10.3389/fpubh.2024.1346753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/24/2024] [Indexed: 03/02/2024] Open
Abstract
Despite relatively higher rates of dementia among Indigenous populations internationally, research into drivers of disparities in brain health and cognitive function has tended to focus on modifiable risk factors over cultural understandings and contextual determinants. By seeking to characterize social and cultural factors that shape brain health and cognition in Indigenous populations, this mini scoping review expands prevailing schools of thought to include Indigenous knowledge systems. This reveals important gaps in culturally aligned care. It also reclaims horizons for research important to Indigenous Peoples that have garnered diminished attention in biomedical approaches. Twenty-three sources were included for data extraction. This synthesis of 23 sources includes health communication about dementia, health provider knowledge about Indigenous health, culturally relevant screening and assessment tools, and culturally grounded care models. Much of the focus is currently still on modifiable risk factors that reside at individual factors, whereas attention to wider social factors that impact populations is needed, as stressors through isolation, discrimination, and unequal care are widely reported. Going forward, identifying structural barriers to living well and recognizing the importance of connection to culture will benefit both Indigenous and non-Indigenous understandings of brain health.
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Affiliation(s)
- Rita Henderson
- Department of Family Medicine, University of Calgary, Calgary, AB, Canada
| | - Joyla A. Furlano
- Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | | | | | - Anh Ly
- Department of Psychology, University of Calgary, Calgary, AB, Canada
| | - Jennifer Walker
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada
| | - Lisa Zaretsky
- Department of Family Medicine, University of Calgary, Calgary, AB, Canada
| | - Pamela Roach
- Department of Family Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
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Yeates KO, Barlow KM, Wright B, Tang K, Barrett O, Berdusco E, Black AM, Clark B, Conradi A, Godfrey H, Kolstad AT, Ly A, Mikrogianakis A, Purser R, Schneider K, Stang AS, Zemek R, Zwicker JD, Johnson DW. Health care impact of implementing a clinical pathway for acute care of pediatric concussion: a stepped wedge, cluster randomised trial. CAN J EMERG MED 2023; 25:627-636. [PMID: 37351798 PMCID: PMC10333406 DOI: 10.1007/s43678-023-00530-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/23/2023] [Indexed: 06/24/2023]
Abstract
OBJECTIVES To test the effects of actively implementing a clinical pathway for acute care of pediatric concussion on health care utilization and costs. METHODS Stepped wedge, cluster randomized trial of a clinical pathway, conducted in 5 emergency departments (ED) in Alberta, Canada from February 1 to November 30, 2019. The clinical pathway emphasized standardized assessment of risk for persistent symptoms, provision of consistent information to patients and families, and referral for outpatient follow-up. De-identified administrative data measured 6 outcomes: ED return visits; outpatient follow-up visits; length of ED stay, including total time, time from triage to physician initial assessment, and time from physician initial assessment to disposition; and total physician claims in an episode of care. RESULTS A total of 2878 unique patients (1164 female, 1713 male) aged 5-17 years (median 11.00, IQR 8, 14) met case criteria. They completed 3009 visits to the 5 sites and 781 follow-up visits to outpatient care, constituting 2910 episodes of care. Implementation did not alter the likelihood of an ED return visit (OR 0.77, 95% CI 0.39, 1.52), but increased the likelihood of outpatient follow-up visits (OR 1.84, 95% CI 1.19, 2.85). Total length of ED stay was unchanged, but time from physician initial assessment to disposition decreased significantly (mean change - 23.76 min, 95% CI - 37.99, - 9.52). Total physician claims increased significantly at only 1 of 5 sites. CONCLUSIONS Implementation of a clinical pathway in the ED increased outpatient follow-up and reduced the time from physician initial assessment to disposition, without increasing physician costs. Implementation of a clinical pathway can align acute care of pediatric concussion more closely with existing clinical practice guidelines while making care more efficient. TRIAL REGISTRATION ClinicalTrials.gov NCT05095012.
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Affiliation(s)
- Keith Owen Yeates
- Department of Psychology, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N1N4, Canada.
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
| | - Karen M Barlow
- Child Health Research Centre, Queensland Children's Hospital, University of Queensland, South Brisbane, Australia
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
| | - Bruce Wright
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
- Women's and Children's Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Ken Tang
- Independent Statistical Consulting, Vancouver, BC, Canada
| | | | - Edward Berdusco
- Departments of Emergency Medicine and Family Medicine, University of Alberta, Edmonton, AB, Canada
| | - Amanda M Black
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- O'Brien Institute for Public Health, University of Calgary, Calgary, AB, Canada
- Faculty of Kinesiology, Sport Injury Prevention Research Centre, University of Calgary, Calgary, AB, Canada
| | - Brenda Clark
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Alf Conradi
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Heather Godfrey
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Department of Emergency Medicine, Alberta Children's Hospital, Calgary, AB, Canada
| | - Ashley T Kolstad
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Faculty of Kinesiology, Sport Injury Prevention Research Centre, University of Calgary, Calgary, AB, Canada
| | - Anh Ly
- Department of Psychology, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N1N4, Canada
| | | | - Ross Purser
- Department of Emergency Medicine, Grey Nuns Hospital, Edmonton, AB, Canada
| | - Kathryn Schneider
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Faculty of Kinesiology, Sport Injury Prevention Research Centre, University of Calgary, Calgary, AB, Canada
| | - Antonia S Stang
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
- Department of Emergency Medicine, Alberta Children's Hospital, Calgary, AB, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
- Department of Emergency Medicine, University of Calgary, Calgary, AB, Canada
| | - Roger Zemek
- Departments of Pediatrics and Emergency Medicine, University of Ottawa, Ottawa, Canada
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON, Canada
| | - Jennifer D Zwicker
- School of Public Policy, University of Calgary, Calgary, AB, Canada
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - David W Johnson
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
- Department of Emergency Medicine, Alberta Children's Hospital, Calgary, AB, Canada
- Department of Emergency Medicine, University of Calgary, Calgary, AB, Canada
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5
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Weiner D, Ly A, Talluru S, Ambinder R, Rozati S. Clinical outcomes of single-agent chemotherapy in a diverse cohort of patients with recalcitrant cutaneous T-cell lymphoma. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00594-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Talluru S, Weiner D, Ly A, Fazal M, Rozati S. Investigating clinical characteristics and outcomes of CTCL patients with a history of eczema: retrospective review at a single tertiary referral center. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00622-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Migicovsky Z, Swift JF, Helget Z, Klein LL, Ly A, Maimaitiyiming M, Woodhouse K, Fennell A, Kwasniewski M, Miller AJ, Cousins P, Chitwood DH. Increases in vein length compensate for leaf area lost to lobing in grapevine. Am J Bot 2022; 109:1063-1073. [PMID: 35851467 PMCID: PMC9545854 DOI: 10.1002/ajb2.16033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/03/2022] [Indexed: 05/19/2023]
Abstract
PREMISE Leaf lobing and leaf size vary considerably across and within species, including among grapevines (Vitis spp.), some of the best-studied leaves. We examined the relationship between leaf lobing and leaf area across grapevine populations that varied in extent of leaf lobing. METHODS We used homologous landmarking techniques to measure 2632 leaves across 2 years in 476 unique, genetically distinct grapevines from five biparental crosses that vary primarily in the extent of lobing. We determined to what extent leaf area explained variation in lobing, vein length, and vein to blade ratio. RESULTS Although lobing was the primary source of variation in shape across the leaves we measured, leaf area varied only slightly as a function of lobing. Rather, leaf area increases as a function of total major vein length, total branching vein length, and vein to blade ratio. These relationships are stronger for more highly lobed leaves, with the residuals for each model differing as a function of distal lobing. CONCLUSIONS For leaves with different extents of lobing but the same area, the more highly lobed leaves have longer veins and higher vein to blade ratios, allowing them to maintain similar leaf areas despite increased lobing. These findings show how more highly lobed leaves may compensate for what would otherwise result in a reduced leaf area, allowing for increased photosynthetic capacity through similar leaf size.
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Affiliation(s)
- Zoë Migicovsky
- Plant, Food, and Environmental Sciences, Faculty of AgricultureDalhousie UniversityTruroNova ScotiaCanada B2N 5E3
| | - Joel F. Swift
- Department of BiologySaint Louis UniversitySt. LouisMO63103‐2010USA
| | - Zachary Helget
- Agronomy, Horticulture, and Plant ScienceSouth Dakota State UniversityBrookingsSD57007USA
| | - Laura L. Klein
- Department of BiologySaint Louis UniversitySt. LouisMO63103‐2010USA
| | - Anh Ly
- Department of Natural and Applied SciencesMissouri State UniversitySpringfieldMO65897USA
| | | | - Karoline Woodhouse
- Agronomy, Horticulture, and Plant ScienceSouth Dakota State UniversityBrookingsSD57007USA
| | - Anne Fennell
- Agronomy, Horticulture, and Plant ScienceSouth Dakota State UniversityBrookingsSD57007USA
| | - Misha Kwasniewski
- Division of Food SciencesUniversity of MissouriColumbiaMO65211USA
- Department of Food SciencesThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | | | | | - Daniel H. Chitwood
- Department of HorticultureMichigan State UniversityEast LansingMI48823USA
- Department of Computational Mathematics, Science & EngineeringMichigan State UniversityEast LansingMI48823USA
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Berendes D, Martinsen A, Lozier M, Rajasingham A, Medley A, Osborne T, Trinies V, Schweitzer R, Prentice-Mott G, Pratt C, Murphy J, Craig C, Lamorde M, Kesande M, Tusabe F, Mwaki A, Eleveld A, Odhiambo A, Ngere I, Kariuki Njenga M, Cordon-Rosales C, Contreras APG, Call D, Ramay BM, Ramm RES, Paulino CJT, Schnorr CD, Aubin MD, Dumas D, Murray KO, Bivens N, Ly A, Hawes E, Maliga A, Morazan GH, Manzanero R, Morey F, Maes P, Diallo Y, Ilboudo M, Richemond D, Hattab OE, Oger PY, Matsuhashi A, Nsambi G, Antoine J, Ayebare R, Nakubulwa T, Vosburgh W, Boore A, Herman-Roloff A, Zielinski-Gutierrez E, Handzel T. Improving water, sanitation, and hygiene (WASH), with a focus on hand hygiene, globally for community mitigation of COVID-19. PLOS Water 2022; 1:e0000027. [PMID: 38410139 PMCID: PMC10896259 DOI: 10.1371/journal.pwat.0000027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Continuity of key water, sanitation, and hygiene (WASH) infrastructure and WASH practices-for example, hand hygiene-are among several critical community preventive and mitigation measures to reduce transmission of infectious diseases, including COVID-19 and other respiratory diseases. WASH guidance for COVID-19 prevention may combine existing WASH standards and new COVID-19 guidance. Many existing WASH tools can also be modified for targeted WASH assessments during the COVID-19 pandemic. We partnered with local organizations to develop and deploy tools to assess WASH conditions and practices and subsequently implement, monitor, and evaluate WASH interventions to mitigate COVID-19 in low- and middle-income countries in Latin America and the Caribbean and Africa, focusing on healthcare, community institution, and household settings and hand hygiene specifically. Employing mixed-methods assessments, we observed gaps in access to hand hygiene materials specifically despite most of those settings having access to improved, often onsite, water supplies. Across countries, adherence to hand hygiene among healthcare providers was about twice as high after patient contact compared to before patient contact. Poor or non-existent management of handwashing stations and alcohol-based hand rub (ABHR) was common, especially in community institutions. Markets and points of entry (internal or external border crossings) represent congregation spaces, critical for COVID-19 mitigation, where globally-recognized WASH standards are needed. Development, evaluation, deployment, and refinement of new and existing standards can help ensure WASH aspects of community mitigation efforts that remain accessible and functional to enable inclusive preventive behaviors.
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Affiliation(s)
- David Berendes
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Andrea Martinsen
- Emergency Response and Recovery Branch, Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Matt Lozier
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Anu Rajasingham
- Emergency Response and Recovery Branch, Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Alexandra Medley
- Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Taylor Osborne
- Emergency Response and Recovery Branch, Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Victoria Trinies
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- CDC Foundation, Atlanta, Georgia, USA
| | - Ryan Schweitzer
- Emergency Response and Recovery Branch, Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Graeme Prentice-Mott
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Caroline Pratt
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Epidemic Intelligence Service, Centers for Disease Control and Prevention
| | - Jennifer Murphy
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Christina Craig
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Mohammed Lamorde
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Maureen Kesande
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Fred Tusabe
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Alex Mwaki
- Safe Water and AIDS Project, Kisumu, Kenya
| | | | | | | | | | | | | | - Douglas Call
- Washington State University, Pullman, Washington, USA
| | | | | | | | | | - Michael De Aubin
- Brigham and Women's Hospital, Harvard University, Boston, MA, USA
| | - Devan Dumas
- Brigham and Women's Hospital, Harvard University, Boston, MA, USA
| | - Kristy O Murray
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Nicholas Bivens
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Anh Ly
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Ella Hawes
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Adrianna Maliga
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Gerhaldine H Morazan
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
- Belize Ministry of Health and Wellness, Belmopan, Belize
| | | | - Francis Morey
- Belize Ministry of Health and Wellness, Belmopan, Belize
| | - Peter Maes
- UNICEF, Kinshasa, Democratic Republic of Congo
| | | | | | | | | | | | | | - Gertrude Nsambi
- Department of Hygiene and Public Health, Ministry of Health, Kinshasa, Democratic Republic of Congo
| | | | | | | | - Waverly Vosburgh
- Division of Global Health Protection, Centers for Disease Control and Prevention, Kampala, Uganda
| | - Amy Boore
- Division of Global Health Protection, Centers for Disease Control and Prevention, Kampala, Uganda
| | - Amy Herman-Roloff
- Division of Global Health Protection, Centers for Disease Control and Prevention, Nairobi, Kenya
| | - Emily Zielinski-Gutierrez
- Division of Global Health Protection, Centers for Disease Control and Prevention, Guatemala City, Guatemala
| | - Tom Handzel
- Emergency Response and Recovery Branch, Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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van der Laan LN, Papies EK, Ly A, Smeets PAM. Examining the neural correlates of goal priming with the NeuroShop, a novel virtual reality fMRI paradigm. Appetite 2021; 170:105901. [PMID: 34968564 DOI: 10.1016/j.appet.2021.105901] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/05/2021] [Accepted: 12/23/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Health goal priming has been shown to stimulate healthy food choices by activating an individual's weight-control goal. The present study combined fMRI with a novel virtual reality food choice task to elucidate the underlying neural mechanisms of health goal priming. Previous research has suggested that the ventromedial prefrontal cortex (vmPFC) and dorsolateral prefrontal cortex (dlPFC) play a role in the incorporation of health considerations into the food choice process. Responses may be more representative for those found in real life when assessed in an environment similar to the actual choice environment. Therefore, the first aim of the study was to explore if a novel virtual reality food choice task is sufficiently sensitive to detect basic valuation processes in food choice. The second aim was to examine whether increased activation in the dlPFC drives the effects of health goal priming. METHODS Fifty-six female participants performed an fMRI food choice task embedded in a virtual supermarket environment. They chose between perceived healthy and unhealthy products in a health prime, hedonic prime, and non-food control condition, while activation in brain areas involved in self-control and valuation (vmPFC, dlPFC) was assessed. RESULTS There were no differences in relative preference for perceived healthy products over unhealthy products between the conditions. There were also no main effects of prime condition on brain activation in the vmPFC and dPFC during food choice. Across conditions, activation in the vmPFC correlated with the tastiness of the chosen product during food choice. CONCLUSIONS Although the study does not provide support for health goal priming triggering neural self-control mechanisms, results did show that virtual reality has potential for a more realistic fMRI food choice paradigm.
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Affiliation(s)
- L N van der Laan
- University Medical Center Utrecht. Image Sciences Institute, the Netherlands.
| | - E K Papies
- University of Glasgow, School of Psychology and Neuroscience, UK
| | - A Ly
- University Medical Center Utrecht. Image Sciences Institute, the Netherlands
| | - P A M Smeets
- University Medical Center Utrecht. Image Sciences Institute, the Netherlands
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Villalba J, Sayo T, Shih A, Hung Y, Ly A, Kem M, Hariri L, Mino-Kenudson M. P38.02 Reproducibility and Accuracy of Intra-Operative Assessment on Tumor Spread Through Air Spaces in Stage 1 Lung Adenocarcinomas. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ly A, Zemek R, Wright B, Zwicker J, Schneider K, Mikrogianakis A, Conradi A, Johnson D, Clark B, Barlow K, Burey J, Kolstad A, Yeates KO. "What is the actual goal of the pathway?": examining emergency department physician and nurse perspectives on the implementation of a pediatric concussion pathway using the theoretical domains framework. BMC Health Serv Res 2021; 21:119. [PMID: 33546684 PMCID: PMC7863464 DOI: 10.1186/s12913-021-06110-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 01/21/2021] [Indexed: 01/17/2023] Open
Abstract
Background Multiple evidence-based clinical practice guidelines (CPGs) exist to guide the management of concussion in children, but few have been translated into clinical pathways (CP), which operationalize guidelines into accessible and actionable algorithms that can be more readily implemented by health care providers. This study aimed to identify the clinical behaviours, attitudinal factors, and environmental contexts that potentially influence the implementation of a clinical pathway for pediatric concussion. Methods Semi-structured interviews were conducted from October 2017 to January 2018 with 42 emergency department clinicians (17 physicians, 25 nurses) at five urban emergency departments in Alberta, Canada. A Theoretical Domains Framework (TDF)-informed interview guide contained open-ended questions intended to gather feedback on the proposed pathway developed for the study, as well as factors that could potentially influence its implementation. Results The original 14 domains of the TDF were collapsed into 6 clusters based on significant overlap between domains in the issues discussed by clinicians: 1) knowledge, skills, and practice; 2) professional roles and identity; 3) attitudes, beliefs, and motivations; 4) goals and priorities; 5) local context and resources; and 6) engagement and collaboration. The 6 clusters identified in the interviews each reflect 2–4 predominant topics that can be condensed into six overarching themes regarding clinicians’ views on the implementation of a concussion CP: 1) standardization in the midst of evolving research; 2) clarifying and communicating goals; 3) knowledge dissemination and alignment of information; 4) a team-oriented approach; 5) site engagement; and 6) streamlining clinical processes. Conclusion Application of a comprehensive, evidence-based, and theory-driven framework in conjunction with an inductive thematic analysis approach enabled six themes to emerge as to how to successfullly implement a concussion CP.
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Affiliation(s)
- Anh Ly
- Department of Psychology, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada.
| | - Roger Zemek
- Department of Pediatrics, University of Ottawa, 75 Laurier Avenue East, Ottawa, Ontario, K1N 6N5, Canada
| | - Bruce Wright
- Department of Pediatrics, University of Alberta, 3-513 Edmonton Clinic Health Academy, Edmonton, Alberta, T6G 2R7, Canada
| | - Jennifer Zwicker
- University of Calgary, School of Public Policy, 906 8th Avenue SW, Calgary, Alberta, T2P 1H9, Canada
| | - Kathryn Schneider
- University of Calgary, Faculty of Kinesiology, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
| | - Angelo Mikrogianakis
- Department of Pediatrics, McMaster University, 1280 Main Street, Hamilton, Ontario, L8S 4K1, Canada
| | - Alf Conradi
- Department of Pediatrics, University of Alberta, 4-539 Edmonton Clinic Health Academy, Edmonton, Alberta, T6G 2R7, Canada
| | - David Johnson
- Department of Pediatrics, University of Calgary, 28 Oki Drive NW, Calgary, T3B 6A8, Canada
| | - Brenda Clark
- Department of Pediatrics, University of Alberta, 10230 111 Avenue, Edmonton, Alberta, T5G 0B7, Canada
| | - Karen Barlow
- University of Queensland, Child Health Research Centre, Brisbane, QLD, 4072, Australia
| | - Joseph Burey
- Department of Psychology, University of Windsor, 401 Sunset Avenue, Windsor, Ontario, N9B 3P4, Canada
| | - Ash Kolstad
- University of Calgary, Faculty of Kinesiology, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
| | - Keith Owen Yeates
- Department of Psychology, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
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Nguyen V, Smothers J, Ballhorn P, Kottapalli S, Ly A, Villarreal J, Kim K. Myosin V-mediated transport of Snc1 and Vps10 toward the trans-Golgi network. Eur J Cell Biol 2020; 100:151143. [PMID: 33277053 DOI: 10.1016/j.ejcb.2020.151143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 10/30/2020] [Accepted: 11/27/2020] [Indexed: 12/23/2022] Open
Abstract
Retrieval of cargo proteins from the endosome towards the trans-Golgi network (TGN) is a crucial intracellular process for cellular homeostasis. Its dysfunction is associated with pathogenesis of Alzheimer and Parkinson's diseases. Myosin family proteins are cellular motors walking along actin filaments by utilizing the chemical energy from ATP hydrolysis, known to involve in pleiotropic cellular trafficking pathways. However, the question of whether myosins play a role in the trafficking of Snc1 and Vps10 has not been addressed yet. The present study assesses the potential roles of all five yeast myosins in the recycling of two membrane cargo, Snc1 and Vps10. It appears that all myosins except Myo2 are not required for the Snc1 traffic, while it was found that Myo1 and 2 play important roles for Vps10 retrieval from the endosome and the vacuole. Multiple myo2 mutants harboring a point mutation in the actin binding or the cargo binding tail domain were characterized to demonstrate abnormal Vps10-GFP and GFP-Snc1 distribution phenotypes, suggesting a severe defect in their sorting and trafficking at the endosome. Furthermore, Vps10-GFP patches in all tested myo2 mutants were found to be near stationary with quantitative live cell imaging. Finally, we found that actin cables in the myo2 mutant cells were considerably disrupted, which may aggravate the trafficking of Vps10 from the endosome. Together, our results provide novel insights into the function of Myo-family proteins in the recycling traffic of Vps10 and Snc1 destined for the TGN.
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Affiliation(s)
- Vy Nguyen
- Department of Biology, Missouri State University, 901 S National, Springfield, MO, 65807, USA
| | - Jared Smothers
- Department of Biology, Missouri State University, 901 S National, Springfield, MO, 65807, USA; Department of Biophysics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75235-8816, USA
| | - Paul Ballhorn
- Department of Biology, Missouri State University, 901 S National, Springfield, MO, 65807, USA
| | - Sravya Kottapalli
- Department of Biology, Missouri State University, 901 S National, Springfield, MO, 65807, USA
| | - Anh Ly
- Department of Biology, Missouri State University, 901 S National, Springfield, MO, 65807, USA
| | - Julia Villarreal
- Department of Biology, Missouri State University, 901 S National, Springfield, MO, 65807, USA
| | - Kyoungtae Kim
- Department of Biology, Missouri State University, 901 S National, Springfield, MO, 65807, USA.
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13
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Labé P, Ly A, Sin C, Nasser M, Chapelon-Fromont E, Ben Saïd P, Mahé E. Erythema multiforme and Kawasaki disease associated with COVID-19 infection in children. J Eur Acad Dermatol Venereol 2020; 34:e539-e541. [PMID: 32455505 PMCID: PMC7283825 DOI: 10.1111/jdv.16666] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- P Labé
- Pediatric Department, Hôpital Victor Dupouy, Argenteuil, France
| | - A Ly
- Pediatric Department, Hôpital Victor Dupouy, Argenteuil, France
| | - C Sin
- Dermatology Department, Hôpital Victor Dupouy, Argenteuil, France
| | - M Nasser
- Pediatric Department, Hôpital Victor Dupouy, Argenteuil, France
| | | | - P Ben Saïd
- Pediatric Department, Hôpital Victor Dupouy, Argenteuil, France
| | - E Mahé
- Dermatology Department, Hôpital Victor Dupouy, Argenteuil, France
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Mori C, Cooke JE, Temple JR, Ly A, Lu Y, Anderson N, Rash C, Madigan S. The Prevalence of Sexting Behaviors Among Emerging Adults: A Meta-Analysis. Arch Sex Behav 2020; 49:1103-1119. [PMID: 32072397 DOI: 10.1007/s10508-020-01656-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 01/25/2020] [Accepted: 02/01/2020] [Indexed: 05/10/2023]
Abstract
Sexting is the sharing of sexually explicit images, videos, and/or messages via electronic devices. Prevalence estimates of sexting have varied substantially, potentially due to broad age ranges being examined. The current study sought to synthesize relevant findings examining the prevalence of consensual and non-consensual sexting in a specific developmental period, emerging adulthood (≥ 18-< 29), to try to explain discrepancies in the literature. Searches were conducted in electronic databases for articles published up to April 2018. Relevant data from 50 studies with 18,122 emerging adults were extracted. The prevalence of sexting behaviors were: sending 38.3% (k = 41; CI 32.0-44.6), receiving 41.5% (k = 19; CI 31.9-51.2), and reciprocal sexting 47.7% (k = 16; CI 37.6-57.8). Thus, sexting is a common behavior among emerging adults. The prevalence of non-consensual forwarding of sexts was also frequent in emerging adults at 15.0% (k = 7; CI 6.9-23.2). Educational awareness initiatives on digital citizenship and psychological consequences of the non-consensual forwarding of sexts should be targeted to youth and emerging adults with the hopes of mitigating this potentially damaging and illegal behavior.
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Affiliation(s)
- Camille Mori
- Department of Psychology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada
| | - Jessica E Cooke
- Department of Psychology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada
| | - Jeff R Temple
- Department of Obstetrics and Gynecology, University of Texas Branch at Galveston, Galveston, TX, USA
| | - Anh Ly
- Department of Psychology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada
| | - Yu Lu
- Department of Obstetrics and Gynecology, University of Texas Branch at Galveston, Galveston, TX, USA
| | - Nina Anderson
- Department of Psychology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada
| | - Christina Rash
- Department of Psychology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada
| | - Sheri Madigan
- Department of Psychology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada.
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada.
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Abstract
Bayesian inference for rank-order problems is frustrated by the absence of an explicit likelihood function. This hurdle can be overcome by assuming a latent normal representation that is consistent with the ordinal information in the data: the observed ranks are conceptualized as an impoverished reflection of an underlying continuous scale, and inference concerns the parameters that govern the latent representation. We apply this generic data-augmentation method to obtain Bayes factors for three popular rank-based tests: the rank sum test, the signed rank test, and Spearman's ρs.
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Affiliation(s)
- J. van Doorn
- Department of Psychological Methods, University of Amsterdam, Amsterdam, the Netherlands
| | - A. Ly
- Department of Psychological Methods, University of Amsterdam, Amsterdam, the Netherlands
- Centrum voor Wiskunde & Informatica, Amsterdam, the Netherlands
| | - M. Marsman
- Department of Psychological Methods, University of Amsterdam, Amsterdam, the Netherlands
| | - E.-J. Wagenmakers
- Department of Psychological Methods, University of Amsterdam, Amsterdam, the Netherlands
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16
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Singh S, Ly A, Das S, Sakthivel TS, Barkam S, Seal S. Cerium oxide nanoparticles at the nano-bio interface: size-dependent cellular uptake. Artif Cells Nanomed Biotechnol 2018; 46:S956-S963. [PMID: 30314412 DOI: 10.1080/21691401.2018.1521818] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The authors investigated the role of different size and morphology of cerium oxide nanoparticles (CNPs) in cellular uptake and internalization at the nano-bio interface. Atomic force microscopy (AFM) has been utilized to record changes in the membrane elasticity as a function of ceria particle morphology and concentration. Young's Modulus was estimated in presence and absence of CNPs of different sizes by gauging the membrane elasticity of CCL30 (squamous cell carcinoma) cells. Significant change in Young's Modulus was observed for CNP treatments at higher concentrations, while minimum membrane disruption was observed at lower concentrations. Studies using blocking agents specific to energy-dependent cellular internalization pathways indicated passive cellular uptake for smaller CNPs (3-5 nm). Other observations showed that larger CNPs were unable to permeate the cell membrane, which indicates an active uptake mechanism by the cell membrane. The ability of smaller CNPs (3-5 nm) to permeate the cell membrane without energy consumption by uptake pathways suggests potential for use as nanovectors for the delivery of bioactive molecules. Specifically, the passive uptake mechanism allows for the delivery of surface-bound molecules directly to the cytoplasm, avoiding the extreme chemical conditions of endosomal pathways.
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Affiliation(s)
- Sushant Singh
- a Nanoscience Technology Center, University of Central Florida , Orlando , FL , USA.,b Advanced Materials Processing and Analysis Center, University of Central Florida , Orlando , FL , USA
| | - Anh Ly
- c Department of Materials Science and Engineering , University of Central Florida , Orlando , FL , USA.,d School of Mathematical and Physical Sciences , University of Technology Sydney , Ultimo , Australia
| | - Soumen Das
- a Nanoscience Technology Center, University of Central Florida , Orlando , FL , USA.,e Aviana Molecular Therapeutic , Orlando , FL , USA
| | - Tamil S Sakthivel
- a Nanoscience Technology Center, University of Central Florida , Orlando , FL , USA.,b Advanced Materials Processing and Analysis Center, University of Central Florida , Orlando , FL , USA
| | - Swetha Barkam
- a Nanoscience Technology Center, University of Central Florida , Orlando , FL , USA.,f Micron Technology , Boise , ID , USA
| | - Sudipta Seal
- a Nanoscience Technology Center, University of Central Florida , Orlando , FL , USA.,b Advanced Materials Processing and Analysis Center, University of Central Florida , Orlando , FL , USA.,c Department of Materials Science and Engineering , University of Central Florida , Orlando , FL , USA.,g College of Medicine , University of Central Florida , Orlando , FL , USA
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Courtay de Gaulle A, Bey P, Carayon A, Ly A, Balawa CGM, Godet J. Finding Adequate Information: A Major Challenge for Policy-Makers in the Field of Cancer. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.15300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background and context: A global cancer epidemic is developing (GLOBOCAN 2012). In the case of low- and-middle-income countries, difficulties are cumulative: inadequate health systems, lack of training for professionals. Drastic decisions have to be taken in a very complex field. Good decision needs good information. What about information dedicated to policy-makers: to decide a question, they need specific information, marked by these features: synthetic, clear, scientifically validated. Actually, this is not easy to find. Moreover policy-makers can't really benefit from: 1. Information for health professionals which is complex and overabundant (the request “cancer” on PubMed “out” nearly 1.5 millions references). 2. Documents or testimonials for patients. Written by scientific societies or patients' associations, they mostly focus on 2 topics “understand your disease” and “how to cope with”. 3. Information from the Web, not always reliable in terms of quality. Strategy/Tactics: While policy advisors and international organizations provide appropriate studies and reports, mostly focused on “what should be done”, we believe that knowledge of basic cancer data are necessary to understand the proposals. We talk about issues like “what is cancer”, “what exactly cover radiotherapy, oncological surgery…”. Regarding French speaking Africa, Alliance Ligues Africaines and Méditérranéennes (ALIAM) and The French League have produced targeted information for decision-makers. The document was presented in Brazzaville in June 2017. Access to this book is free: www.livre-cancer.aliam.org . The editorial method was discussed and we made the choice to write short sheets, to quickly understand the useful definitions and problems. Rather than comprehensiveness, a pedagogical will and a desire for clarity guided the writing. Diagrams and photos had to be abundant to facilitate understanding. Moreover, this format allows a permanent update of the subjects and the introduction of new topics as needed. What was learned: On the basis of this experience, ALIAM and the league are convinced that a pedagogic document with an international vocation would be useful for all policy makers. Proposal for action: UICC would be the perfect organizer of a working group to produce such a document. The goal would be to develop a consensus text which resume essential data on all common themes of cancer. About 25 themes could be identified, e.g., definition and mechanisms of development of cancers, risk factors, screening and early diagnosis, anatomic pathology and telepathology, molecular biology, imaging and interventional radiology, surgery, radiotherapy, chemotherapy and innovative therapies, palliative care etc. Moreover, focus on specific location of cancer (breast, cervix, lung…) and pediatric cancers should be developed. Then, it would be easier for any world regions to supplement this validated information with additional specific data describing the local situation. Hierarchizing action priorities would be facilitated.
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Affiliation(s)
| | - P. Bey
- Ligue Nationale contre le Cancer, Paris, France
| | - A. Carayon
- Ligue Nationale contre le Cancer, Paris, France
| | - A. Ly
- Afrocancer, Paris, France
| | | | - J. Godet
- Ligue Nationale contre le Cancer, Paris, France
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18
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Abstract
IMPORTANCE The existing literature on sexting among youth shows that sexting is a predictor of sexual behavior and may be associated with other health outcomes and risky behaviors. However, there remains a lack of consensus on the prevalence of sexting, which is needed to inform future research, intervention, and policy development. OBJECTIVE To provide a meta-analytic synthesis of studies examining the prevalence of multiple forms of sexting behavior, analyzed by age, sex, geography, and method of sexting. DATA SOURCES In an academic setting, electronic searches in MEDLINE, PsycINFO, EMBASE, and Web of Science were conducted for the period January 1990 to June 2016, yielding 1147 nonduplicate records. STUDY SELECTION Studies were included if participants were younger than 18 years and the prevalence of sexting explicit images, videos, or messages was reported. DATA EXTRACTION AND SYNTHESIS Literature review and data extraction followed established PRISMA guidelines. Two independent reviewers extracted all relevant data. Random-effects meta-analyses were used to derive the mean prevalence rates. Thirty-nine studies met final inclusion criteria. MAIN OUTCOMES AND MEASURES Meta-analyses of the prevalence of sending, receiving, and forwarding without consent, as well as having one's sext forwarded without consent. RESULTS Among 39 included studies, there were 110 380 participants; the mean age was 15.16 years (age range, 11.9-17.0 years), and on average 47.2% were male. Studies were available for sending (n = 34), receiving (n = 20), forwarding without consent (n = 5), and having a sext forwarded without consent (n = 4). The mean prevalences for sending and receiving sexts were 14.8% (95% CI, 12.8%-16.8%) and 27.4% (95% CI, 23.1%-31.7%), respectively. Moderator analyses revealed that effect sizes varied as a function of child age (prevalence increased with age), year of data collection (prevalence increased over time), and sexting method (higher prevalence on mobile devices compared with computers). The prevalence of forwarding a sext without consent was 12.0% (95% CI, 8.4%-15.6%), and the prevalence of having a sext forwarded without consent was 8.4% (95% CI, 4.7%-12.0%). CONCLUSIONS AND RELEVANCE The prevalence of sexting has increased in recent years and increases as youth age. Further research focusing on nonconsensual sexting is necessary to appropriately target and inform intervention, education, and policy efforts.
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Affiliation(s)
- Sheri Madigan
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada,Alberta Children’s Hospital Research Institute, Calgary, Alberta, Canada
| | - Anh Ly
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada
| | - Christina L. Rash
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada
| | - Joris Van Ouytsel
- Department of Communication Studies, Universiteit Antwerpen, Antwerp, Belgium
| | - Jeff R. Temple
- Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston
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Donovan MJ, Jones JG, Entenberg DR, Condeelis JS, D'alfonso TM, Gustavson M, Molinaro A, Oktay MH, Xue X, Sparano JA, Peterson MA, Podznyakova O, Rohan TE, Shuber AP, Gertler FB, Ly A, Divelbiss ME, Hamilton DA. Abstract P2-05-06: Analytical and clinical validation of a fully automated tissue-based quantitative assay (MetaSite Breast™) to detect the likelihood of distant metastasis in hormone receptor (HR)-positive, HER2-negative early stage breast cancer (ESBC). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p2-05-06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: MetaSite Breast™ is a validated assay to predict risk of distant breast cancer metastasis in patients with HR+/HER2- ESBC. The assay measures the number of MetaSites defined as tumor microanatomic structures composed of MENA protein expressing tumor cells in contact with CD31+ endothelial cells and CD68+ macrophages. Previous studies have demonstrated that an increased number of these microanatomic structures is associated with distant metastasis (DM) in HR+/HER2- ESBC independent of clinicopathologic features. Analytical validation of MetaSite Breast™ demonstrated precision of 97-99% (repeat image analysis of the same slide) and performance of 91-96% (staining and image analysis of serial tumor sections). We sought to further understand the importance of the MetaSite in predicting distant breast cancer metastasis utilizing a fully automated prognostic assay in an independent large patient cohort.
Methods: We conducted a nested case-control study within a cohort of 3,760 patients diagnosed between 1980 and 2000 with invasive breast cancer from the Kaiser Permanente Northwest health care system. Cases (n=259) were women who developed a subsequent distant metastasis; controls, selected using incidence density sampling, were matched closely to cases (1:1) on age at and calendar year of primary diagnosis. Of the 481 patient tumor samples evaluated in this study, 57% were HR+/HER2-, 19% were triple negative (TN), and 15% were HER2+ disease. Multivariate models were adjusted for clinical factors including: lymph node status, tumor size, tumor grade, and HRT; as well as matching variables: age and year of diagnosis. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression.
Results: In the HR+/HER2- group, MetaSite Score (MS) ranged from 0-357 and the mean was 44.6. MS was a significant predictor of DM (P=0.039) in patients with HR+/HER2- disease. Cut-points based on tertiles of MS in all 259 controls defined intermediate (13-41) and high (>41) risk groups that were significantly associated with risk of DM versus the low risk group (OR=2.24; 95%CI=1.23-4.13, P=0.009) and (OR=2.94; 95%CI=1.62-5.41, P=0.0005), respectively. Univariate estimates of absolute risk of DM with cutoffs based on 90% sensitivity and specificity were 9.4% for the low risk group (MS<7), 14.1% for the intermediate (MS=7-91), and 23.4% for the high (MS>91). When adjusted for clinical factors, estimates of absolute risk of DM were 6.6%, 14.1%, and 33.0% for the low, intermediate, and high risk groups, respectively. A binary cut-point for the high risk group was determined (MS>14) and was significant with a 2-fold higher risk of DM versus the low risk group and adjusted for clinical covariates (P=0.036). MS was not positively associated with DM in TN or HER2+ disease.
Conclusions: MetaSite Breast™ significantly predicted the risk of distant breast cancer metastasis in ESBC patients with HR+/HER2-disease, independent of classical clinicopathologic features.
Citation Format: Donovan MJ, Jones JG, Entenberg DR, Condeelis JS, D'alfonso TM, Gustavson M, Molinaro A, Oktay MH, Xue X, Sparano JA, Peterson MA, Podznyakova O, Rohan TE, Shuber AP, Gertler FB, Ly A, Divelbiss ME, Hamilton DA. Analytical and clinical validation of a fully automated tissue-based quantitative assay (MetaSite Breast™) to detect the likelihood of distant metastasis in hormone receptor (HR)-positive, HER2-negative early stage breast cancer (ESBC) [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P2-05-06.
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Affiliation(s)
- MJ Donovan
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - JG Jones
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - DR Entenberg
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - JS Condeelis
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - TM D'alfonso
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - M Gustavson
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - A Molinaro
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - MH Oktay
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - X Xue
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - JA Sparano
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - MA Peterson
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - O Podznyakova
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - TE Rohan
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - AP Shuber
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - FB Gertler
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - A Ly
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - ME Divelbiss
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - DA Hamilton
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
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Zhang Y, Jerevall PL, Schroeder BE, Ly A, Nolan H, Schnabel CA, Sgroi DC. Abstract P2-05-08: Impact of treatment history on prognostic ability of breast cancer index (BCI): Subset analysis from a validation study of patients with hormone receptor-positive (HR+) breast cancer with 1-3 positive nodes. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p2-05-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: A new BCI model integrating tumor size and grade (BCIN+) was specifically developed and validated for prediction of risk of overall (0-15y) and late (5-15y) distant recurrence (DR) in HR+ women with 1-3 positive nodes (N1). The objective of this study was to evaluate the impact of treatment history on the prognostic performance of BCIN+ in a large clinical validation cohort of pre- and post-menopausal HR+, N1 patients.
Methods: The validation cohort was comprised of 402 HR+, N1 patients diagnosed at Massachusetts General Hospital between 1993-2007 with at least 5y of follow-up. BCIN+ risk scores were determined and patients stratified into low or high risk categories using a pre-specified cut-point blinded to clinical outcome. Kaplan-Meier estimates of overall (0-15y) and late (5-15y) DR were estimated and the difference was evaluated by log-rank test. Treatment-specific subsets were analyzed based on adjuvant endocrine (tamoxifen [TAM] only vs any history of aromatase inhibitors [AI]), and adjuvant chemotherapy treatment history.
Results: Mean age of patients was 53y. 99% were ER+, 91% PR+, and 13% HER2+. The majority of tumors were T1 (62%) or T2 (35%). Adjuvant endocrine treatment included TAM only for 191 (48%) patients and either AI only or a sequence of TAM and an AI in 211 (52%) patients. Most patients received chemotherapy (n=324; 81%). BCIN+ classified 20% and 80% as low and high risk, respectively.
In patients treated with TAM only, BCIN+ low and high risk had significantly different 15y rates of DR (95% CI) of 4.0% (0.0-11.4%) vs 41.7% (33.0-49.3%), respectively (p=0.0005). For patients disease-free at year 5, rates of late DR (5-15y) were 4.0% (0.0-11.5%) vs 20.0% (11.4-27.8%), respectively (p=0.04). In patients treated with an AI, BCIN+ low and high risk had significantly different 15y rates of DR of 0% (0.0-0.0%) vs 15.0% (8.1-21.5%), respectively (p=0.006). For patients disease-free at year 5, rates of late DR were 0.0% (0.0-0.0%) vs 12.2% (5.6-18.3%), respectively (p=0.02). There was no statistically significant difference in the prognostic performance of BCIN+ between patients treated with TAM only versus those with treatment including any history of AI (interaction p=0.99).
In the subset of patients treated with chemotherapy, BCIN+ classified 19% and 81% of patients as low and high risk with significantly different 15y rates of DR of 1.7% (0.0-4.9%) vs 30.9% (24.4-36.8%), respectively (p<0.0001). For patients disease-free at year 5, rates of late DR were 1.7% (0.0-4.9%) and 16.3% (10.2-21.9%), respectively (p=0.006).
Conclusions: In this subset analysis from a validation study of N1 patients, BCIN+ identified a significant proportion with a significantly low risk of late DR. This study confirms the ability of BCIN+ to identify a subset of patients with significantly low risk of recurrence across adjuvant endocrine and chemotherapy treatment backgrounds. BCIN+ may provide additional prognostic information to facilitate selection of N+ patients for extended endocrine treatment, wherein patients identified as BCIN+ low may be considered adequately treated with adjuvant therapy alone.
Citation Format: Zhang Y, Jerevall P-L, Schroeder BE, Ly A, Nolan H, Schnabel CA, Sgroi DC. Impact of treatment history on prognostic ability of breast cancer index (BCI): Subset analysis from a validation study of patients with hormone receptor-positive (HR+) breast cancer with 1-3 positive nodes [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P2-05-08.
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Affiliation(s)
- Y Zhang
- Biotheranostics, Inc., San Diego, CA; Massachusetts General Hospital, Boston, CA
| | - P-L Jerevall
- Biotheranostics, Inc., San Diego, CA; Massachusetts General Hospital, Boston, CA
| | - BE Schroeder
- Biotheranostics, Inc., San Diego, CA; Massachusetts General Hospital, Boston, CA
| | - A Ly
- Biotheranostics, Inc., San Diego, CA; Massachusetts General Hospital, Boston, CA
| | - H Nolan
- Biotheranostics, Inc., San Diego, CA; Massachusetts General Hospital, Boston, CA
| | - CA Schnabel
- Biotheranostics, Inc., San Diego, CA; Massachusetts General Hospital, Boston, CA
| | - DC Sgroi
- Biotheranostics, Inc., San Diego, CA; Massachusetts General Hospital, Boston, CA
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Delegue P, Picquet M, Shaw DJ, Vercruysse J, Sambou B, Ly A. Morbidity induced bySchistosoma haematobiuminfections, as assessed by ultrasound before and after treatment with praziquantel, in a recently expanded focus (Senegal River basin). Annals of Tropical Medicine & Parasitology 2016. [DOI: 10.1080/00034983.1998.11813339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Southgate VR, De Clercq D, Sène M, Rollinson D, Ly A, Vercruysse J. Observations on the compatibility between Bulinus spp. and Schistosoma haematobium in the Senegal River basin. Annals of Tropical Medicine & Parasitology 2016. [DOI: 10.1080/00034983.2000.11813524] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Chao L, Gor V, Murrell D, Kim M, O’Toole E, Ly A, Woodley D, Wysong A, Chen M. 421 Over-expression of periostin is associated with clinical outcomes and poor prognosis in cutaneous squamous cell carcinoma. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ly A, Crowshoe L. 'Stereotypes are reality': addressing stereotyping in Canadian Aboriginal medical education. Med Educ 2015; 49:612-622. [PMID: 25989409 DOI: 10.1111/medu.12725] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 06/16/2014] [Accepted: 01/26/2015] [Indexed: 06/04/2023]
Abstract
CONTEXT Efforts are underway in many parts of the world to develop medical education curricula that address the health care issues of indigenous populations. The topic of stereotypes and their impact on such peoples' health, however, has received little attention. An examination of stereotypes will shed light on dominant cultural attitudes toward Aboriginal people that can affect quality of care and health outcomes in Aboriginal patients. OBJECTIVES This study examines the views of undergraduate medical students regarding Canadian Aboriginal stereotypes and how they potentially affect Aboriginal people's health. The goal of this study was to gain insight into how medical learners perceive issues related to racism, discrimination and social stereotypes and to draw attention to gaps in Aboriginal health curricula. METHODS This study involved a convenience sample of medical learners drawn from one undergraduate medical programme in western Canada. Using a semi-structured interview guide, we conducted a total of seven focus group interviews with 38 first- and second-year undergraduate medical students. Data were analysed using a thematic content analysis approach. RESULTS Medical students recognise that stereotypes are closely related to processes of racism and discrimination. However, they generally feel that stereotypes of Aboriginal people are rooted in reality. Students also identified medical school as one of the environments in which they are commonly exposed to negative views of Aboriginal people. Student responses suggest they see the cultural gap between Aboriginal and non-Aboriginal people as being both a cause and a consequence of discrimination against Aboriginal people. CONCLUSIONS The results of this study suggest that teaching medical students about the realities and impacts of stereotypes on Aboriginal peoples is a good starting point from which to address issues of racism and health inequities affecting the health of Aboriginal people.
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Affiliation(s)
- Anh Ly
- Department of Anthropology, University of California Riverside, Riverside, California, USA
| | - Lynden Crowshoe
- Department of Family Medicine, University of Calgary, Calgary, Alberta, Canada
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Ly A. Carcinome basocellulaire de l’auvent nasal. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.04.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ly A. Carcinome basocellulaire du nez. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.04.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Slater JM, Ling TCT, Nookala P, Mifflin R, Grove R, Ly A, Patyal B, Slater JD, Yang G. A treatment planning evaluation of protons versus IMRT in pancreatic cancer: A comparative study. J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.3_suppl.369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
369 Background: The purpose of this study is to investigate dose distributions of proton and intensity-modulated radiation therapy (IMRT) photon treatment plans in patients with resected pancreatic adenocarcinoma, focusing specifically on dose reduction to the kidney, liver, and small bowel as organs at risk. Methods: Ten patients with pancreatic head adenocarcinoma underwent Whipple procedure between 2010 and 2013 were included in this study. Most of the patients had locally advanced disease (T3-4N1). All patients were simulated with contrast-enhanced CT imaging. The clinical target volume (CTV) consisted of the pre-operative extent of tumor plus a 10 mm manual expansion in all directions. The planning target volume (PTV) was generated by a further expansion on the CTV ranging from 10-15 mm. A dose of 50.4 Gy given in 28 fractions was delivered to the PTV. All plans were optimized to allow 95% isodose coverage of at least 95% of the PTV. Dose-volume histograms, conformity index (CI), uniformity index (UI), homogeneity index (HI), were calculated and analyzed in order to compare plans between the two modalities. The OAR being evaluated in this study are the kidneys, liver, small bowel, and spinal cord. To determine statistical significance, ANOVA and two-tailed paired t-tests were performed for all data parameters. Results: The proton plans resulted in a lower mean kidney dose (3.17 Gy vs. 9.59 Gy, p=0.039), a lower dose delivered to 1/3 of the liver, D1/3, (0.25 Gy vs. 4.56 Gy, p=0.003), and a lower mean liver dose (1.83 Gy vs. 5.24 Gy, p=0.021). See table for a summary of the results. Conclusions: For patients receiving postoperative radiotherapy for pancreatic cancer, the proton plans are technically feasible and dosimetrically appealing with superior organ at risk sparing compared to IMRT photon treatment plans.[Table: see text]
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Affiliation(s)
| | | | | | | | | | - Anh Ly
- Loma Linda University, Loma Linda, CA
| | | | | | - Gary Yang
- Loma Linda University Medical Center, Loma Linda, CA
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Ling TCT, Slater JM, Mifflin R, Nookala P, Grove R, Ly A, Patyal B, Slater JD, Yang G. A comparison of proton and photon radiotherapy in reducing cardiac exposure for patients receiving radiation therapy for distal and esophagogastric junction cancer. J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.3_suppl.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
167 Background: Recent studies indicate that radiation exposure to heart may have a greater impact on perioperative cardiac morbidities than do other clinical factors. The purpose of this study is to investigate dose distributions of proton and photon treatment plans in patients (pts) with distal and esophagogastric junction (GEJ) carcinoma, focusing specifically on dose reduction to cardiac structures. Methods: Ten pts between 2010 and 2013 were included in this study. Three separate plans were generated for each patient: 3D proton plan, 3D photon plan, and Intensity modulated radiotherapy (IMRT) photon plan. The clinical target volume (CTV) consisted of the pre-operative extent of tumor plus a 10mm manual expansion in all directions. The planning target volume (PTV) was generated by a further expansion on the CTV ranging from 10-15mm. A dose of 50.4Gy given in 28 fractions was delivered to the PTV. All plans were optimized to allow 90% isodose coverage of at least 95% of the PTV. Dose-volume histograms were calculated and analyzed in order to compare plans between the three modalities. ANOVA and two-tailed paired t-tests were performed for all data parameters. Results: The 3D proton plans showed decreased dose to partial volumes of the entire heart, arteries, valves, atria, and ventricles in comparison to both the IMRT and 3D photon plans (see Table). The IMRT plans showed decreased dose delivered to the LAD artery, pericardium, and atria in comparison to the 3D photon plans (see Table). Conclusions: For pts receiving radiation therapy for distal esophageal and GEJ cancer, proton plans are technically feasible with adequate coverage while resulting in lower dose to cardiac structures. This may result in decreased cardiac toxicity and less complications in a multimodality setting. [Table: see text]
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Affiliation(s)
| | | | | | | | | | - Anh Ly
- Loma Linda University, Loma Linda, CA
| | | | | | - Gary Yang
- Loma Linda University Medical Center, Loma Linda, CA
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Chan M, Chan A, Ly A, Lim N. Chan score predicts presence and severity of sleep apnea at the bedside before polysomnogram sleep test. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ly A, Habib F, Zimmermann U, Gentil-Perret A, Joujoux JM, Clerici T, Stoebner P, Chaussade V, Sei JF. Les chirurgies micrographiques : techniques, indications et applications pratiques en cabinet. Ann Dermatol Venereol 2013; 140:647-55. [DOI: 10.1016/j.annder.2013.04.102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 03/25/2013] [Accepted: 04/11/2013] [Indexed: 10/26/2022]
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Ly A. Plastie d’Antia Bush. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Freedman RA, Gelman RS, Wefel JS, Krop IE, Melisko ME, Ly A, Agar NYR, Connolly RM, Blackwell KL, Nabell LM, Ingle JN, Van Poznak CH, Puhalla SL, Niravath PA, Ryabin N, Wolff AC, Winer EP, Lin N. Abstract OT1-1-11: TBCRC 022: Phase II Trial of Neratinib for Patients with Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Breast cancer and Brain Metastases. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-ot1-1-11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: 1/3 of women with metastatic HER2+ breast cancer will develop central nervous system (CNS) metastases yet evidence-based treatments for women with progressive CNS disease are limited. Neratinib is an irreversible inhibitor of erbB1, HER2, and erbB4 which has promising activity in HER2+ breast cancer. Preclinical evidence suggests it may cross the blood brain barrier.
Trial Design: This is a multicenter, phase II, open-label study of neratinib for patients with HER2+ breast cancer and brain metastases. Neratinib is administered at 240 mg orally daily during a 28 day cycle. Two cohorts will be enrolled: Cohort 1 will enroll 40 patients with progressive CNS disease; cohort 2 will enroll ≤5 patients who are candidates for surgical excision of intracranial disease. Surgical candidates receive neratinib 7–21 days preoperatively and resume postoperatively. All patients are re-staged every 2 cycles. Those who develop non-CNS progression have an option to extend therapy with trastuzumab+neratinib. Circulating tumor cells (CTC) are collected at baseline and progression; neurocognitive testing, HADS and EORTC QLQ30/BN20 measures are administered at baseline, cycle 2, cycle 3, and progression (cohort 1). Intracranial tumor, cerebrospinal fluid (CSF), and plasma are collected at surgery (cohort 2).
Specific Aims: The primary endpoint is CNS objective response rate (ORR) by composite criteria. Additional endpoints include: non-CNS ORR, progression-free survival, overall survival (OS), site of 1st progression, and toxicity. Correlative and exploratory endpoints include association of CTC count and OS and longitudinal neurocognitive function and quality of life. In an exploratory analysis (cohort 2), we will quantify neratinib concentrations in CSF, intracranial tissue, and plasma and examine associations with response.
Eligibility: Patients must have confirmed HER2+ metastatic disease with ≥1 parenchymal brain lesion measuring ≥10 mm that is new or progressed after completing ≥1 line of standard CNS-directed treatment (cohort 1) or CNS disease that is amenable for surgery, including those without prior CNS treatments (cohort 2). Additional eligibility criteria (cohorts 1,2) include: adequate performance status and end organ/marrow function, and ejection fraction ≥50%. Any number of prior lines of therapy is allowed, including prior lapatinib.
Statistical Methods: Cohort 1 has a 2-stage design with up to 40 patients. CNS ORR is defined as ≥50% reduction in sum volume of CNS target lesions, without evidence of new lesions, progression of non-target CNS lesions, non-CNS disease progression, worsening neurological symptoms, or increase in corticosteroids. CNS lesion measurements are performed centrally by the Harvard Tumor Imaging Metrics Core. If 1/18 patients have a CNS response in the 1st stage, another 22 patients will enroll. With this design, if ≥5 of 40 patients achieve a CNS response, the drug will be deemed worthy of future study. This 2-stage design has 92% power to distinguish between a true CNS ORR of 20% and a null of 6% (one-sided type I error rate=9%).
Accrual: Accrual has begun. Target=45 (cohort 1=40, cohort 2=5)
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr OT1-1-11.
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Affiliation(s)
- RA Freedman
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - RS Gelman
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - JS Wefel
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - IE Krop
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - ME Melisko
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - A Ly
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - NYR Agar
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - RM Connolly
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - KL Blackwell
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - LM Nabell
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - JN Ingle
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - CH Van Poznak
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - SL Puhalla
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - PA Niravath
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - N Ryabin
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - AC Wolff
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - EP Winer
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
| | - N Lin
- Dana-Farber Cancer Institute, Boston, MA; The University of Texas MD Anderson Cancer Center, Houston, TX; University of California, San Francisco, CA; Brigham and Women's Hospital, Boston, MA; Johns Hopkins University, Baltimore, MD; Duke University, Durham, NC; University of Alabama, Birmingham, AL; Mayo Clinic, Rochester, MN; University of Michigan, Ann Arbor, MI; Univerity of Pittsburgh, Pittsburgh, PA; Baylor, Houston, TX
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Ly A. Carcinome basocellulaire de la pointe du nez. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.04.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ly A. Un carcinome basocellulaire de l’anthélix avec réparation par greffe. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.04.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ly A. Une chirurgie micrographique pour les pièces opératoires peu épaisses. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.04.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ly A. Chirurgie micrographique et lambeau de Limberg sur un carcinome basocellulaire du nez. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.04.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Schallmey M, Ly A, Wang C, Meglei G, Voget S, Streit WR, Driscoll BT, Charles TC. Harvesting of novel polyhydroxyalkanaote (PHA) synthase encoding genes from a soil metagenome library using phenotypic screening. FEMS Microbiol Lett 2011; 321:150-6. [DOI: 10.1111/j.1574-6968.2011.02324.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Ly A, Nookala P, Watt D, Patyal B. SU-E-T-839: Treatment Planning Comparison Between IMRT and Protons Involving Patch Fields. Med Phys 2011. [DOI: 10.1118/1.3612803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Trojan J, Ly A, Wei MX, Bierwagen M, Kopinski P, Pan Y, Ardourel MY, Dufour T, Shevelev A, Trojan LA, François JC, Andres C, Popiela T, Chatel M, Kasprzak H, Anthony DD, Duc HT. Antisense anti IGF-I cellular therapy of malignant tumours: immune response in cancer patients. Biomed Pharmacother 2010; 64:576-8. [PMID: 20630696 DOI: 10.1016/j.biopha.2010.01.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 01/29/2010] [Indexed: 11/19/2022] Open
Abstract
The treatment of cancer by antisense anti-IGF-I cellular therapy inducing immune response has evoked interest among many promising strategies. Here, we reported some results obtained from patients with cancer, mainly glioblastoma treated by this strategy, which was also extended to patients with colon carcinoma, ovary cystadenocarcinoma and prostate adenocarcinoma. It was shown that, in the phase I of clinical trial, patients vaccinated with their own tumour cells treated by antisense IGF-I presented a slight increase of temperature. Their peripheral blood lymphocytes showed a shift in the percentage of CD8 effector cells as judged by expression of cell surface markers CD8+ CD28+. Particularly, in two treated patients with glioblastoma, the survival time was 19 and 24 months respectively in comparison to the range of 12 to 15 months observed in the case of classical treatment such as surgery, radiation or chemotherapy. These results, although preliminary, gave indication that the reported strategy could deserve consideration owing to its safety. Furthermore, the increase in the percentage of peripheral blood monomorphonucleated cells (PBMNCs) with effector phenotype, i.e., CD8+ CD28+ in vaccinated patients might explain their prolonged survival time.
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Affiliation(s)
- J Trojan
- Inserm U602, Paul-Brousse Hospital, Paris XI University, Villejuif, France
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Ly A, Nookala P, Blasongame D, Bush D, Patyal B. SU-FF-T-607: Immobilization, Treatment Planning and Treatment Delivery for Breast Irradiation with Protons. Med Phys 2009. [DOI: 10.1118/1.3182105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Lee KD, Gray EJ, Mabood F, Jung WJ, Charles T, Clark SRD, Ly A, Souleimanov A, Zhou X, Smith DL. The class IId bacteriocin thuricin-17 increases plant growth. Planta 2009; 229:747-55. [PMID: 19083012 DOI: 10.1007/s00425-008-0870-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2008] [Accepted: 11/21/2008] [Indexed: 05/24/2023]
Abstract
The mechanisms by which many plant growth promoting rhizobacteria (PGPR) affect plants are unknown. We recently isolated a rhizosphere bacterium (Bacillus thuringiensis NEB17), that promotes soybean growth and screened the liquid growth medium in which it grew for plant growth stimulating materials. We have also shown that it produces a bacteriocin (named by us as thuricin-17 and a member of the recently described class IId bacteriocins). Here we show that application of this bacteriocin to leaves (spray) or roots (drench) directly stimulates the growth of both a C(3) dicot (soybean) and a C(4) monocot (corn). This growth stimulation is similar in nature to that previously seen when plants are treated with Nod factors. Strain NEB17 contains three copies of the gene for thuricin 17 that code for identical amino acid sequences. These two lines of evidence suggest that the dual functions of these proteins may have constrained their evolution. This is the first report of direct plant growth enhancement by a bacteriocin.
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Affiliation(s)
- Kyung Dong Lee
- Department of Oriental Medicine Materials, Dongshin University, 252 Daeho-dong, Naju, Jeonnam, 520-714, South Korea
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Ly A, Nookala P, Watt D, Patyal B. SU-GG-T-495: Proton Treatment Planning of Complex Cases with Patch-Fields. Med Phys 2008. [DOI: 10.1118/1.2962244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Nosbaum A, Allombert-Blaise C, Ly A, Jullien D, Faure M, Claudy A, Simon M. [Efalizumab-induced pancytopenia]. Ann Dermatol Venereol 2008; 135:407-8. [PMID: 18457730 DOI: 10.1016/j.annder.2007.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2007] [Accepted: 05/11/2007] [Indexed: 11/24/2022]
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Bathelier E, Ly A, Kanitakis J, Ranchere-Vince D, Chouvet B, Allombert C, Faure M, Claudy A. Subcutaneous dermatofibrosarcoma protuberans masquerading as a cyst. J Eur Acad Dermatol Venereol 2007; 21:1127-8. [PMID: 17714149 DOI: 10.1111/j.1468-3083.2006.02114.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Amini-Adle M, Auxenfants C, Allombert-Blaise C, Deroo-Berger MC, Ly A, Jullien D, Faure M, Damour O, Claudy A. Rapid healing of long-lasting sickle cell leg ulcer treated with allogeneic keratinocytes. J Eur Acad Dermatol Venereol 2007; 21:707-8. [PMID: 17448004 DOI: 10.1111/j.1468-3083.2006.02003.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Aqueous solutions containing the minichromosomal form of the virus SV40 and the radical scavenger DMSO were subjected to gamma-irradiation, and the resulting formation of single strand breaks (SSB) was quantified. Under the irradiation conditions, most SSBs were produced as a consequence of hydroxyl radical ((•)OH) reactions. By controlling the competition between DMSO and the viral DNA substrate for (•)OH, we are able to estimate the rate coefficient for the reaction of (•)OH with the SV40 minichromosome. The results cannot be described adequately by homogeneous competition kinetics, but it is possible to describe the rate coefficient for the reaction as a function of the scavenging capacity of the solution. The experimentally determined rate coefficient lies in the range 1×10(9) - 2×10(9) L mol(-1) s(-1) at 10(7) s(-1), and increases with increasing scavenging capacity.
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Affiliation(s)
- A Ly
- Department of Radiology, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0610
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Goldstein FW, Ly A, Kitzis MD. Comparison of Etest with agar dilution for testing the susceptibility of Pseudomonas aeruginosa and other multidrug-resistant bacteria to colistin. J Antimicrob Chemother 2007; 59:1039-40. [PMID: 17437963 DOI: 10.1093/jac/dkm046] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
BACKGROUND Nicorandil is a potassium-channel activator used in the treatment of angina pectoris. The first cases of anal ulcerations induced by nicorandil were published in 2002. CASE REPORT A 71-year-old man presented with a 2-year history of anal ulcerations occurring within a few months of initiation of treatment with Nicorandil. Histological tests on a biopsy sample showed granulation tissue with non-specific chronic inflammation. Nicorandil was stopped and this resulted in complete healing of the ulcers after three months. DISCUSSION Nicorandil can induce chronic and extensive anal ulcerations. The pathogenesis is unknown. Patients are usually treated with high doses of nicorandil. Dermatologists should be aware of this rare side-effect which heals after withdrawal of the drug.
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Affiliation(s)
- A-L Rival
- Service de Dermatologie, Hôpital Edouard Herriot, place d'Arsonval, 69437 Lyon Cedex 03
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Ly A, Benson B, Moyers M, Amos R. SU-FF-T-136: Commissioning of the EYEPLAN V3.01 at LLUMC. Med Phys 2006. [DOI: 10.1118/1.2241061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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