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Stewart M, Cameron S, Thunert M, Zampiron A, Wainwright D, Nikora V. High-resolution measurements of swordfish skin surface roughness. Bioinspir Biomim 2023; 19:016007. [PMID: 37995345 DOI: 10.1088/1748-3190/ad0f32] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
The three-dimensional morphology of swordfish skin roughness remains poorly understood. Subsequently, its importance to the overall physiology and hydrodynamic performance of the swordfish is yet to be determined. This is at least partly attributable to the inherent difficulty in making the required measurements of these complex biological surfaces. To address this, here two sets of novel high-resolution measurements of swordfish skin, obtained using a modular optical coherence tomography system and a gel-based stereo-profilometer, are reported and compared. Both techniques are shown to provide three-dimensional morphological data at micron-scale resolution. The results indicate that the skin surface is populated with spiny roughness elements, typically elongated in the streamwise direction, in groups of up to six, and in good agreement with previously reported information based on coarser measurements. In addition, our data also provide new information on the spatial distribution and variability of these roughness features. Two approaches, one continuous and another discrete, are used to derive various topographical metrics that characterize the surface texture of the skin. The information provided here can be used to develop statistically representative synthetic models of swordfish skin roughness.
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Affiliation(s)
- M Stewart
- School of Engineering, University of Aberdeen, Aberdeen, United Kingdom
| | - S Cameron
- School of Engineering, University of Aberdeen, Aberdeen, United Kingdom
| | | | - A Zampiron
- School of Engineering, University of Aberdeen, Aberdeen, United Kingdom
| | - D Wainwright
- Department of Biological Sciences, Purdue University, West Lafayette, IN, United States of America
| | - V Nikora
- School of Engineering, University of Aberdeen, Aberdeen, United Kingdom
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Chomyn A, Chan ES, Yeung J, Cameron S, Chua GT, Vander Leek TK, Williams BA, Soller L, Abrams EM, Mak R, Wong T. Safety and effectiveness of the Canadian food ladders for children with IgE-mediated food allergies to cow's milk and/or egg. Allergy Asthma Clin Immunol 2023; 19:94. [PMID: 37932826 PMCID: PMC10629013 DOI: 10.1186/s13223-023-00847-7] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/05/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND Food ladders are tools designed to facilitate home-based dietary advancement in children with food allergies through stepwise exposures to increasingly allergenic forms of milk and egg. Several studies have now documented safety and efficacy of food ladders. In 2021, we published a Canadian adaptation of the previously existing milk and egg ladders originating in Europe using foods more readily available/consumed in Canada. Our study adds to the growing body of evidence supporting food ladder use and provides safety and effectiveness data for our Canadian adaptation of the milk and egg ladders. METHODS Surveys were distributed to families of children using the Canadian Milk Ladder and/or the Canadian Egg Ladder at baseline, with follow up surveys at 3 months, 6 months, and 12 months. Data were analyzed using REDCap and descriptive and inferential statistics are presented. RESULTS One hundred and nine participants were started on milk/egg ladders between September 2020 and June 2022. 53 participants responded to follow up surveys. Only 2 of 53 (3.8%) participants reported receiving epinephrine during the study. Severe grade 4 reactions (defined according to the modified World Allergy Organization grading system) were not reported by any participants. Minor cutaneous adverse reactions were common, with about 71% (n = 10/14) of respondents reporting cutaneous adverse reactions by 1 year of food ladder use. An increasing proportion of participants could tolerate most foods from steps 2-4 foods after 3, 6, and 12 months of the food ladder compared to baseline. CONCLUSION The Canadian food ladders are safe tools for children with cow's milk and/or egg allergies, and participants tolerated a larger range of foods with food ladder use compared to baseline.
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Affiliation(s)
- Alanna Chomyn
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada.
| | - Edmond S Chan
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada
| | - Joanne Yeung
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada
| | - Scott Cameron
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada
| | - Gilbert T Chua
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Timothy K Vander Leek
- Pediatric Allergy & Asthma, Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Brock A Williams
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada
- Food, Nutrition, and Health, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada
| | - Lianne Soller
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada
| | - Elissa M Abrams
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada
- Department of Pediatrics and Child Health, Section of Allergy and Immunology, University of Manitoba, Winnipeg, Canada
| | - Raymond Mak
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada
| | - Tiffany Wong
- Department of Pediatrics, Division of Clinical Immunology & Allergy, University of British Columbia, BC Children's Hospital, Room 1C31B 4480 Oak Street, V5Z 4H4, Vancouver, BC, Canada.
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Cameron S, Grady KM, Kent SP, Sousa MM. Mild to moderate increases in activity are associated with increased seizure incidence in dogs with idiopathic epilepsy receiving anti-epileptic drugs. J Small Anim Pract 2023; 64:611-618. [PMID: 37572005 DOI: 10.1111/jsap.13655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 03/16/2023] [Accepted: 06/29/2023] [Indexed: 08/14/2023]
Abstract
OBJECTIVE Epilepsy is a chronic disorder, and approximately 25% to 30% of dogs with epilepsy are refractory to anti-epileptic drugs. As increased activity has been shown to reduce seizure frequency in people with epilepsy, the goal of this study was to evaluate the relationship between deviation from baseline activity and seizure incidence in dogs with epilepsy. MATERIALS AND METHODS Activity and seizure data were obtained using a canine activity monitoring device and owner observed seizure logs in 53 dogs with idiopathic epilepsy receiving anti-epileptic drugs. Each dog's activity was individually measured, and 14-day baseline averages were calculated. Logistic regression was performed to evaluate how an observed increase in activity, ranging from 0% to 50%, above baseline activity, affects the incidence of a seizure in the following 24 hours. RESULTS A total of 8540 activity days and 365 seizure days were used in the final analysis with an average of 11 seizures per dog (range 0 to 30 seizures). Seizure incidence was significantly more likely when activity was 10%, 20%, or 30% above baseline activity in the 24 hours before the day of a documented seizure [95% confidence interval (1.02 to 1.60), P=0.033; 95% confidence interval (1.08 to 1.80), P=0.010; 95% confidence interval (1.13 to 2.07), P=0.005, respectively]. However, when activity levels were 40% and 50% above baseline, the effect diminished (95% confidence interval (0.74 to 1.70), P=0.532; or 95% confidence interval (0.56 to 1.66), P=0.988, respectively). CLINICAL SIGNIFICANCE Differently than in humans, this study demonstrated that a mild to moderate increase in activity resulted in a higher seizure incidence within 24 hours in dogs with epilepsy.
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Affiliation(s)
- S Cameron
- Department of Medical Sciences, University of Wisconsin, Madison, WI, USA
| | - K M Grady
- Clinical Sciences, North Carolina State University, Raleigh, NC, USA
| | - S P Kent
- Department of Statistics, University of Wisconsin - Madison, Madison, WI, USA
| | - M M Sousa
- Ocean State Veterinary Specialists, RI, East Greenwich, USA
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Greenhawt M, Dribin TE, Abrams EM, Shaker M, Chu DK, Golden DBK, Akin C, Anagnostou A, ALMuhizi F, Alqurashi W, Arkwright P, Baldwin JL, Banerji A, Bégin P, Ben-Shoshan M, Bernstein J, Bingemann TA, Bindslev-Jensen C, Blumenthal K, Byrne A, Cahill J, Cameron S, Campbell D, Campbell R, Cavender M, Chan ES, Chinthrajah S, Comberiati P, Eastman JJ, Ellis AK, Fleischer DM, Fox A, Frischmeyer-Guerrerio PA, Gagnon R, Garvey LH, Grayson MH, Isabwe GAC, Hartog N, Hendron D, Horner CC, Hourihane JO, Iglesia E, Kan M, Kaplan B, Katelaris CH, Kim H, Kelso JM, Khan DA, Lang D, Ledford D, Levin M, Lieberman JA, Loh R, Mack DP, Mazer B, Mody K, Mosnaim G, Munblit D, Mustafa SS, Nanda A, Nathan R, Oppenheimer J, Otani IM, Park M, Pawankar R, Perrett KP, Peter J, Phillips EJ, Picard M, Pitlick M, Ramsey A, Rasmussen TH, Rathkopf MM, Reddy H, Robertson K, Rodriguez Del Rio P, Sample S, Sheshadri A, Sheik J, Sindher SB, Spergel JM, Stone CA, Stukus D, Tang MLK, Tracy JM, Turner PJ, Vander Leek TK, Wallace DV, Wang J, Wasserman S, Weldon D, Wolfson AR, Worm M, Yacoub MR. Updated guidance regarding the risk of allergic reactions to COVID-19 vaccines and recommended evaluation and management: A GRADE assessment and international consensus approach. J Allergy Clin Immunol 2023; 152:309-325. [PMID: 37295474 PMCID: PMC10247143 DOI: 10.1016/j.jaci.2023.05.019] [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: 04/12/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 06/12/2023]
Abstract
This guidance updates 2021 GRADE (Grading of Recommendations Assessment, Development and Evaluation) recommendations regarding immediate allergic reactions following coronavirus disease 2019 (COVID-19) vaccines and addresses revaccinating individuals with first-dose allergic reactions and allergy testing to determine revaccination outcomes. Recent meta-analyses assessed the incidence of severe allergic reactions to initial COVID-19 vaccination, risk of mRNA-COVID-19 revaccination after an initial reaction, and diagnostic accuracy of COVID-19 vaccine and vaccine excipient testing in predicting reactions. GRADE methods informed rating the certainty of evidence and strength of recommendations. A modified Delphi panel consisting of experts in allergy, anaphylaxis, vaccinology, infectious diseases, emergency medicine, and primary care from Australia, Canada, Europe, Japan, South Africa, the United Kingdom, and the United States formed the recommendations. We recommend vaccination for persons without COVID-19 vaccine excipient allergy and revaccination after a prior immediate allergic reaction. We suggest against >15-minute postvaccination observation. We recommend against mRNA vaccine or excipient skin testing to predict outcomes. We suggest revaccination of persons with an immediate allergic reaction to the mRNA vaccine or excipients be performed by a person with vaccine allergy expertise in a properly equipped setting. We suggest against premedication, split-dosing, or special precautions because of a comorbid allergic history.
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Affiliation(s)
- Matthew Greenhawt
- Section of Allergy and Clinical Immunology, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo.
| | - Timothy E Dribin
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Elissa M Abrams
- Department of Pediatrics and Child Health, Section of Allergy and Immunology, The University of Manitoba, Winnipeg, Canada
| | - Marcus Shaker
- Dartmouth-Hitchcock Medical Center, Section of Allergy and Immunology, Lebanon, NH; Dartmouth Geisel School of Medicine, Hanover, NH
| | - Derek K Chu
- Faculty of Medicine, and the Department of McMaster University, Hamilton, Canada; Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Canada; The Research Institute of St. Joe's Hamilton, Hamilton, Canada; Evidence in Allergy Group, McMaster University Medical Centre, Hamilton, Canada
| | - David B K Golden
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Bethesda
| | - Cem Akin
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, University of Michigan School, Ann Arbor, Mich
| | - Akterini Anagnostou
- Section of Immunology, Allergy, and Retrovirology, Department of Pediatrics, Baylor College of Medicine, Houston, Tex; Section of Immunology, Allergy and Retrovirology, Department of Pediatrics, Texas Children's Hospital, Houston, Tex
| | - Faisal ALMuhizi
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Security Forces Hospital Program, Riyadh, Arabia
| | - Waleed Alqurashi
- Department of Pediatrics and Emergency Medicine, University of Ottawa, Ottawa, Canada
| | - Peter Arkwright
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, United Kingdom
| | - James L Baldwin
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, University of Michigan School, Ann Arbor, Mich
| | - Aleena Banerji
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | - Philippe Bégin
- Centre Hospital Universitaire Sainte-Justine, Montreal, Canada
| | - Moshe Ben-Shoshan
- Division of Allergy, Immunology, and Dermatology, Department of Pediatrics, McGill University Health Center-Montreal Children's Hospital, Montreal, Canada
| | - Jonathan Bernstein
- Division of Immunology, Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Theresa A Bingemann
- Division of Allergy, Immunology, and Rheumatology, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Carsten Bindslev-Jensen
- Department of Dermatology and Allergy Center, Odense Research Centre for Anaphylaxis, Odense, Denmark
| | - Kim Blumenthal
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | - Aideen Byrne
- Department of Paediatrics, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Julia Cahill
- University of Alberta, Faculty of Medicine, Calgary, Canada
| | - Scott Cameron
- Allergy Victoria, Victoria, British Columbia, Canada
| | | | - Ronna Campbell
- Department of Emergency Medicine, Mayo Clinic, Rochester
| | | | - Edmond S Chan
- Division of Allergy and Immunology, BC Children's Hospital, The University of British Columbia, Vancouver, Canada
| | - Sharon Chinthrajah
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Stanford University School of Medicine, Palo Alto, Calif; Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Stanford University School of Medicine, Palo Alto, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, Calif
| | - Pasquale Comberiati
- Department of Clinical and Experimental Medicine, Section of Pediatrics, University of Pisa, Pisa, Italy
| | - Jacqueline J Eastman
- Corewell Health Allergy and Immunology, Grand Rapids, Mich; Michigan State University College of Human Medicine, Grand Rapids, Mich
| | - Anne K Ellis
- Division of Allergy and Immunology, Department of Medicine, Queen's University, Kingston, Canada
| | - David M Fleischer
- Section of Allergy and Clinical Immunology, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo
| | - Adam Fox
- Guys's and St Tomas's Hospital National Health Service Foundation Trust, London, Mass
| | - Pamela A Frischmeyer-Guerrerio
- Laboratory of Allergic Diseases, Food Allergy Research Section, National Institutes of Allergy and Infectious Diseases, the National Institutes of Health, Bethesda, Md
| | - Remi Gagnon
- Clinique Spécialisée en Allergie de la Capitale, Québec, Canada
| | - Lene H Garvey
- Allergy Clinic, Department of Dermatology and Allergy, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mitchell H Grayson
- Division of Allergy and Immunology, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio
| | - Ghislaine Annie Clarisse Isabwe
- Division of Allergy, Immunology, and Dermatology, Department of Pediatrics, McGill University Health Center-Montreal Children's Hospital, Montreal, Canada
| | - Nicholas Hartog
- Corewell Health Allergy and Immunology, Grand Rapids, Mich; Michigan State University College of Human Medicine, Grand Rapids, Mich
| | - David Hendron
- Access Health Care Physicians LLC, New Port Richey, Fla
| | - Caroline C Horner
- Division of Allergy and Pulmonary Medicine, Department of Pediatrics, Washington University School of Medicine, St Louis, Mo
| | | | - Edward Iglesia
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn
| | | | - Blanka Kaplan
- Division of Allergy and Immunology, Northwell Health, New York, NY
| | | | - Harold Kim
- Faculty of Medicine, and the Department of McMaster University, Hamilton, Canada; Division of Clinical Immunology and Allergy, Department of Medicine, Western University, St Joseph's Health Care, London (Canada), Mass
| | - John M Kelso
- Division of Allergy, Asthma, and Immunology, Scripps Clinic, San Diego, Calif
| | - David A Khan
- Division of Allergy and Immunology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Tex
| | - David Lang
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Dennis Ledford
- Division of Allergy and Immunology, Department of Medicine, University of South Florida Morsani College of Medicine, Tampa, Fla
| | - Michael Levin
- Division of Paediatric Allergology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Jay A Lieberman
- Division of Allergy and Immunology, The University of Tennessee, Memphis, Tenn
| | - Richard Loh
- Immunology Department, Perth Children's Hospital, Perth, Australia
| | - Douglas P Mack
- Department of Pediatrics, McMaster University, Hamilton, Canada; Halton Pediatric Allergy, Burlington, Canada
| | - Bruce Mazer
- Division of Allergy, Immunology, and Dermatology, Department of Pediatrics, McGill University Health Center-Montreal Children's Hospital, Montreal, Canada
| | - Ketan Mody
- Elite Sports Medicine Institute Ltd, Westmont, Ill
| | - Gisele Mosnaim
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, NorthShore University Health System, Evanston, Ill
| | - Daniel Munblit
- Inflammation, Repair and Development Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, Mass
| | - S Shahzad Mustafa
- Rochester Regional Health, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Anil Nanda
- Division of Allergy and Immunology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Tex; Asthma and Allergy Center, Lewisville and Flower Mound, Dallas, Tex
| | | | - John Oppenheimer
- University of Medicine and Dentistry of New Jersey, Rutgers University School of Medicine, New Brunswick, NJ
| | - Iris M Otani
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, University of California San Francisco, San Francisco, Calif
| | - Miguel Park
- Division of Allergic Diseases, Mayo Clinic, Rochester
| | - Ruby Pawankar
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Kirsten P Perrett
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, NorthShore University Health System, Evanston, Ill; Population Allergy Group and the Centre for Food and Allergy Research, Murdoch Children's Research Institute, University of Melbourne, University of Melbourne, Royal Children's Hospital, Parkville, Australia; Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - Jonny Peter
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Cape Town and the Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town
| | - Elizabeth J Phillips
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn; Center for Drug Safety and Immunology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn
| | - Matthieu Picard
- Hôspital Maisonneuve-Rosemont, Université de Montréal, Montreal, Canada
| | | | - Allison Ramsey
- Rochester Regional Health, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Trine Holm Rasmussen
- Department of Dermatology and Allergy Center, Odense Research Centre for Anaphylaxis, Odense, Denmark
| | | | - Hari Reddy
- Allergy, Asthma and Immunology Center of Alaska, Anchorage, Alaska; Department of Pediatrics, University of Washington School of Medicine, Seattle, Wash
| | - Kara Robertson
- Division of Clinical Immunology and Allergy, St Joseph's Health Care, London (Canada), Mass; Schulich School of Medicine and Dentistry, Western University, St Joseph's Health Care, London (Canada), Mass
| | | | | | - Ajay Sheshadri
- Department of Pulmonary Medicine, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Tex
| | - Javed Sheik
- Kaiser Permanente Los Angeles Medical Center, Los Angeles, Calif
| | - Sayantani B Sindher
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Stanford University School of Medicine, Palo Alto, Calif; Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Stanford University School of Medicine, Palo Alto, Calif; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Palo Alto, Calif
| | - Jonathan M Spergel
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, Perelman School of Medicine at University of Pennsylvania, Philadelphia, Pa
| | - Cosby A Stone
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn
| | - David Stukus
- Division of Allergy and Immunology, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio
| | - Mimi L K Tang
- Department of Allergy Immunology, Murdoch Children's Research Institute, Melbourne, Parkville, Australia; Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Australia; Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - James M Tracy
- Allergy, Asthma, and Immunology Associates PC, Omaha, Neb; Department of Pediatrics, University of Nebraska School of Medicine, Omaha, Neb
| | - Paul J Turner
- Imperial College Healthcare National Health Service Trust, London, Mass; Royal Brompton and Harefield National Health Service Foundation Trust, London, Mass
| | - Timothy K Vander Leek
- Pediatric Allergy and Immunology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Canada
| | - Dana V Wallace
- Nova Southeastern University College of Allopathic Medicine, Fort Lauderdale, Fla
| | - Julie Wang
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY; Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Susan Wasserman
- Division of Clinical Immunology and Allergy, Department of Medicine, McMaster University, Hamilton, Canada
| | - David Weldon
- Baylor Scott and White Clinic, College Station, Tex
| | - Anna R Wolfson
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | - Margitta Worm
- Division of Allergology and Immunology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Mona-Rita Yacoub
- Istituto di Ricovero e Cura a Carattere Scientifico San Raffaele Hospital, Unit of Immunology, Rheumatology, Allergy and Rare Diseases, Segrate, Milan, Italy
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Spiers AJ, Dorfmueller HC, Jerdan R, McGregor J, Nicoll A, Steel K, Cameron S. Bioinformatics characterization of BcsA-like orphan proteins suggest they form a novel family of pseudomonad cyclic-β-glucan synthases. PLoS One 2023; 18:e0286540. [PMID: 37267309 DOI: 10.1371/journal.pone.0286540] [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] [Received: 11/17/2022] [Accepted: 05/18/2023] [Indexed: 06/04/2023] Open
Abstract
Bacteria produce a variety of polysaccharides with functional roles in cell surface coating, surface and host interactions, and biofilms. We have identified an 'Orphan' bacterial cellulose synthase catalytic subunit (BcsA)-like protein found in four model pseudomonads, P. aeruginosa PA01, P. fluorescens SBW25, P. putida KT2440 and P. syringae pv. tomato DC3000. Pairwise alignments indicated that the Orphan and BcsA proteins shared less than 41% sequence identity suggesting they may not have the same structural folds or function. We identified 112 Orphans among soil and plant-associated pseudomonads as well as in phytopathogenic and human opportunistic pathogenic strains. The wide distribution of these highly conserved proteins suggest they form a novel family of synthases producing a different polysaccharide. In silico analysis, including sequence comparisons, secondary structure and topology predictions, and protein structural modelling, revealed a two-domain transmembrane ovoid-like structure for the Orphan protein with a periplasmic glycosyl hydrolase family GH17 domain linked via a transmembrane region to a cytoplasmic glycosyltransferase family GT2 domain. We suggest the GT2 domain synthesises β-(1,3)-glucan that is transferred to the GH17 domain where it is cleaved and cyclised to produce cyclic-β-(1,3)-glucan (CβG). Our structural models are consistent with enzymatic characterisation and recent molecular simulations of the PaPA01 and PpKT2440 GH17 domains. It also provides a functional explanation linking PaPAK and PaPA14 Orphan (also known as NdvB) transposon mutants with CβG production and biofilm-associated antibiotic resistance. Importantly, cyclic glucans are also involved in osmoregulation, plant infection and induced systemic suppression, and our findings suggest this novel family of CβG synthases may provide similar range of adaptive responses for pseudomonads.
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Affiliation(s)
- Andrew J Spiers
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | - Helge C Dorfmueller
- Division of Molecular Microbiology, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Robyn Jerdan
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | - Jessica McGregor
- Nuffield Research Placement Students, School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | - Abbie Nicoll
- Nuffield Research Placement Students, School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | - Kenzie Steel
- Nuffield Research Placement Students, School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | - Scott Cameron
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
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6
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Grady K, Cameron S, Kent SP, Barnes Heller H, Barry MM. Effect of an intervention of exercise on sleep and seizure frequency in idiopathic epileptic dogs. J Small Anim Pract 2023; 64:59-68. [PMID: 36368312 PMCID: PMC10099787 DOI: 10.1111/jsap.13568] [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] [Received: 05/18/2021] [Revised: 07/11/2022] [Accepted: 09/06/2022] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The goal of this study was to compare sleep and seizure frequency between epileptic dogs prescribed a 20% activity increase and epileptic dogs not prescribed an activity increase. METHODS Sixty-nine dogs receiving anti-epileptic drug therapy were enrolled in a 6-month prospective, randomised, placebo-controlled clinical trial with an intention-to-treat analysis. A canine activity monitoring device was used to measure activity levels and sleep scores. RESULTS Using an intention-to-treat analysis, the treatment group had an average of 0.381 more seizures per month (95% CI: 0.09 to 0.68) compared with the control group, although the difference in seizure days per month was not statistically significant. In a subgroup analysis of dogs whose activity increased by at least 10%, partial compliers had 0.719 more seizures per month (95% CI: 0.22 to 1.22) and 0.581 seizure days per month (95% CI: 0.001 to 1.16) compared with the control group. Sleep scores increased by 1.2% in the treatment compared with the control group (95% CI: 0.2 to 2.3%). CONCLUSIONS Seizure frequency and sleep score increased slightly, but significantly, in dogs with idiopathic epilepsy prescribed an increase in activity, compared with a control group.
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Affiliation(s)
- K Grady
- Department of Medical Sciences, University of Wisconsin - Madison, School of Veterinary Medicine, 2015 Linden Drive, Madison, Wisconsin, 53706, USA
| | - S Cameron
- Department of Medical Sciences, University of Wisconsin - Madison, School of Veterinary Medicine, 2015 Linden Drive, Madison, Wisconsin, 53706, USA
| | - S P Kent
- Department of Medical Sciences, University of Wisconsin - Madison, School of Veterinary Medicine, 2015 Linden Drive, Madison, Wisconsin, 53706, USA
| | - H Barnes Heller
- Barnes Veterinary Specialty Service, Madison, Wisconsin, 53716, USA
| | - M M Barry
- Department of Medical Sciences, University of Wisconsin - Madison, School of Veterinary Medicine, 2015 Linden Drive, Madison, Wisconsin, 53706, USA
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Moshynets OV, Baranovskyi TP, Cameron S, Iungin OS, Pokholenko I, Jerdan R, Kamyshnyi A, Krikunov AA, Potochilova VV, Rudnieva KL, Spiers AJ. Azithromycin possesses biofilm–inhibitory activity and potentiates non-bactericidal colistin methanesulfonate (CMS) and polymyxin B against Klebsiella pneumonia. PLoS One 2022; 17:e0270983. [PMID: 35776759 PMCID: PMC9249213 DOI: 10.1371/journal.pone.0270983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/21/2022] [Indexed: 11/30/2022] Open
Abstract
Novel antibiotic combinations may act synergistically to inhibit the growth of multidrug-resistant bacterial pathogens but predicting which combination will be successful is difficult, and standard antimicrobial susceptibility testing may not identify important physiological differences between planktonic free-swimming and biofilm-protected surface-attached sessile cells. Using a nominally macrolide-resistant model Klebsiella pneumoniae strain (ATCC 10031) we demonstrate the effectiveness of several macrolides in inhibiting biofilm growth in multi-well plates, and the ability of azithromycin (AZM) to improve the effectiveness of the antibacterial last-agent-of-choice for K. pneumoniae infections, colistin methanesulfonate (CMS), against biofilms. This synergistic action was also seen in biofilm tests of several K. pneumoniae hospital isolates and could also be identified in polymyxin B disc-diffusion assays on azithromycin plates. Our work highlights the complexity of antimicrobial-resistance in bacterial pathogens and the need to test antibiotics with biofilm models where potential synergies might provide new therapeutic opportunities not seen in liquid culture or colony-based assays.
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Affiliation(s)
- Olena V. Moshynets
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
- * E-mail: (OVM); (AJS)
| | - Taras P. Baranovskyi
- Shupyk National Healthcare University of Ukraine, Kyiv, Ukraine
- Kyiv Regional Clinical Hospital, Kyiv, Ukraine
| | - Scott Cameron
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | - Olga S. Iungin
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
- Kyiv National University of Technologies and Design, Kyiv, Ukraine
| | - Ianina Pokholenko
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Robyn Jerdan
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | | | | | | | | | - Andrew J. Spiers
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
- * E-mail: (OVM); (AJS)
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Karunakaran D, Chan E, Zhang Q, Bone J, Carr S, Kapur S, Rex G, McHenry M, Cameron S, Cook V, Leo S, Wong T, Leek TV, Gerstner T, Yeung J, Abrams E, Mak R, Hildebrand K, Erdle S, Soller L. Predictors of Safety for Preschool Peanut Oral Immunotherapy that can help inform a Personalized Medicine Approach. J Allergy Clin Immunol 2022. [DOI: 10.1016/j.jaci.2021.12.471] [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: 10/19/2022]
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9
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Baaske A, Soller L, Mak R, Wong T, Cook V, Rex G, Kapur S, McHenry M, Yeung J, Cameron S, Erdle S, Chan E. Real-World Safety Analysis of Preschool Tree Nut and Sesame Oral Immunotherapy. J Allergy Clin Immunol 2022. [DOI: 10.1016/j.jaci.2021.12.164] [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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10
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Cameron S, Ramakrishnan R, Patel NP. A persistent plaque on the back of the hand. Clin Exp Dermatol 2022; 47:795-798. [PMID: 35014063 DOI: 10.1111/ced.15040] [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] [Received: 09/14/2021] [Revised: 11/03/2021] [Accepted: 11/29/2021] [Indexed: 11/26/2022]
Abstract
We report the case of a 75-year-old woman presenting with acrodermatitis chronica atrophicans affecting the right hand dorsum, developing after an insect bite sustained in Greece. Diagnosis was confirmed by serology, PCR and histopathological findings. The plaque resolved following a 3-week course of oral doxycycline.
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Affiliation(s)
- S Cameron
- Dermatology, Imperial College Healthcare NHS Trust, London, UK
| | - R Ramakrishnan
- Histopathology, Imperial College Healthcare NHS Trust, London, UK
| | - N P Patel
- Dermatology, Imperial College Healthcare NHS Trust, London, UK
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Bhandari R, Aggarwal A, Godwin M, Fendrikova-Mahlay N, Ademoyo A, Pascual C, Elbadawi A, Hazen S, Cameron S. 3034 – PLATELETS AS A BIOSENSOR OF DYSFUNCTIONAL METABOLISM & BIOENERGETICS IN FIBROMUSCULAR DYSPLASIA. Exp Hematol 2022. [DOI: 10.1016/j.exphem.2022.07.090] [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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12
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Gorey S, McAteer C, Antonenko A, Abrahams E, Cameron S, Egan A, Ero A, Fraser C, Tey ZH, Boochoon L, Koay WJ, Sitram R, Deegan K, Quinn C. 77 INCONTINENCE AND DECONDITIONING IN A NONFRAIL SAMPLE OF INPATIENTS AT A UNIVERSITY TEACHING HOSPITAL. Age Ageing 2021. [DOI: 10.1093/ageing/afab219.77] [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: 02/25/2023] Open
Abstract
Abstract
Background
Incontinence occurs in 26% of hospitalised adults1. Deconditioning in hospitalised adults is common and contributes to increased hospital stay2. The #endpjparalysis movement motivates us to reduce harms of hospitalisation older adults.
Methods
We surveyed inpatients to capture the point prevalence of incontinence. We also collected information regarding functional status, continence status and use of continence wear. Local ethical review-board approval was obtained. All participants provided informed consent.
Results
There were 86 responses. Mean age of participants was 71.5 years. 45.4% were female, >95% were admitted from home and were functionally independent. Mean length of stay for respondents was 7.4 days ±12. The median Clinical Frailty Scale, for respondents aged >65 years, was 3, indicating this cohort is not frail.
17 respondents reported incontinence on the day of survey; 8 of these reported that incontinence was a new experience for them since their admission. 24 respondents wore incontinence wear at home, 31 were wearing incontinence wear on the day of survey.
Of 80 respondents who could toilet independently at home, 23 (26%) reported a new dependency to toilet. Of 83 respondents who mobilised independently at home (with or without an aid), 11 reported needing assistance of one-person to walk, 3 needed the assistance of two-people to walk or stand, five people required a hoist, while 3 were bedbound on the day of survey.
Conclusion
We describe increased dependency in mobility, toileting and increased use of continence wear in non-frail hospitalised older adults. Future work is needed to maintain function during admission to hospital.
References
1. Condon, M., et al. (2019). ‘Urinary and Faecal Incontinence: Point Prevalence and Predictors in a University Hospital.’ Int J Environ Res Public Health 16.
2. Guilcher, S., et al. (2021). ‘A qualitative study exploring the lived experiences of deconditioning in hospital in Ontario, Canada.’ BMC Geriatrics 21.
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Affiliation(s)
- S Gorey
- University Hospital Limerick , Limerick, Ireland
| | - C McAteer
- University Hospital Limerick , Limerick, Ireland
| | - A Antonenko
- University Hospital Limerick , Limerick, Ireland
| | - E Abrahams
- University Hospital Limerick , Limerick, Ireland
| | - S Cameron
- University Hospital Limerick , Limerick, Ireland
| | - A Egan
- University Hospital Limerick , Limerick, Ireland
| | - A Ero
- University Hospital Limerick , Limerick, Ireland
| | - C Fraser
- University Hospital Limerick , Limerick, Ireland
| | - Z H Tey
- University Hospital Limerick , Limerick, Ireland
| | - L Boochoon
- University Hospital Limerick , Limerick, Ireland
| | - W J Koay
- University Hospital Limerick , Limerick, Ireland
| | - R Sitram
- University Hospital Limerick , Limerick, Ireland
| | - K Deegan
- University Hospital Limerick , Limerick, Ireland
| | - C Quinn
- University Hospital Limerick , Limerick, Ireland
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13
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Mustafa W, O'Byrne R, Okpaje B, Gabr A, Ali B, Mohamed A, Cameron S, Leahy A, Fernandes L, Mannion M, Ryan P, Ryan S, Peters C, Shanahan E, Galvin R, O'Connor M. 233 BISPHOSPHONATES: ANOTHER COMPLEX DRUG TO PRESCRIBE. Age Ageing 2021. [DOI: 10.1093/ageing/afab219.233] [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: 02/25/2023] Open
Abstract
Abstract
Background
Bisphosphonates provide effective treatment for osteoporosis. They accumulate a bone reservoir lasting for 3 years and beyond. The 2021 NICE guidelines recommend a medication review and a ‘drug holiday’ after 5 years of oral bisphosphonate therapy for low-fracture risk patients. Continuing treatment for high risk individuals is advised: age=/>75, previous hip or vertebral fracture, one or more fractures during treatment, recent DEXA scan with T score =/<−2.5, and/or current treatment with oral glucocorticoids. This retrospective audit aimed to assess compliance with NICE guidelines in a primary care setting.
Methods
Data were collected using the Health One online medical record system in an urban general practice. Inclusion criteria: all patients =/> 65 years old, prescribed oral bisphosphonate therapy for osteoporosis for >5 years. Exclusion criteria: deceased, did not attend clinic >1 year, patients on bisphosphonate treatment for conditions other than osteoporosis.
Results
137 patients with a history of bisphosphonate therapy were identified. 76 patients were on bisphosphonate treatment for greater than 5 years. Of the 76 patients, 33 were classified as low-fracture risk and appropriately commenced a drug holiday, while 22 correctly remained on bisphosphonates due to a high fracture risk. The remaining 21 patients inappropriately continued therapy without receiving a medication review, repeat DEXA or fracture-risk assessment.
Conclusion
One third of patients on bisphosphonates beyond 5 years were not assessed for a drug holiday. The aim of a bisphosphonate ‘drug holiday’ is to reduce poly-pharmacy and prevent rare but serious long-term adverse events (such as atypical fractures, osteonecrosis of the jaw, gastric cancer and atrial fibrillation). Factors which had an impact on inappropriate prescribing should be assessed. Incorporating computer-based prescribing alerts could support safe prescribing practices.
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Affiliation(s)
- W Mustafa
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - R O'Byrne
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - B Okpaje
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - A Gabr
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - B Ali
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - A Mohamed
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - S Cameron
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - A Leahy
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - L Fernandes
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - M Mannion
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - P Ryan
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - S Ryan
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - C Peters
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - E Shanahan
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
| | - R Galvin
- School of Allied Health , HRI, , Limerick, Ireland
- University of Limerick , HRI, , Limerick, Ireland
| | - M O'Connor
- Department of Ageing and Therapeutics, University Hospital Limerick , Limerick, Ireland
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14
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Ammer-Herrmenau C, Asendorf T, Beyer G, Buchholz SM, Cameron S, Damm M, Frost F, Henker R, Jaster R, Phillip V, Placzek M, Ratei C, Sirtl S, van den Berg T, Weingarten MJ, Woitalla J, Mayerle J, Ellenrieder V, Neesse A. Study protocol P-MAPS: microbiome as predictor of severity in acute pancreatitis-a prospective multicentre translational study. BMC Gastroenterol 2021; 21:304. [PMID: 34332533 PMCID: PMC8325304 DOI: 10.1186/s12876-021-01885-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 07/22/2021] [Indexed: 12/15/2022] Open
Abstract
Background Acute pancreatitis (AP) is an inflammatory disorder that causes a considerable economic health burden. While the overall mortality is low, around 20% of patients have a complicated course of disease resulting in increased morbidity and mortality. There is an emerging body of evidence that the microbiome exerts a crucial impact on the pathophysiology and course of AP. For several decades multiple clinical and laboratory parameters have been evaluated, and complex scoring systems were developed to predict the clinical course of AP upon admission. However, the majority of scoring systems are determined after several days and achieve a sensitivity around 70% for early prediction of severe AP. Thus, continued efforts are required to investigate reliable biomarkers for the early prediction of severity in order to guide early clinical management of AP patients.
Methods We designed a multi-center, prospective clinical-translational study to test whether the orointestinal microbiome may serve as novel early predictor of the course, severity and outcome of patients with AP. We will recruit 400 AP patients and obtain buccal and rectal swabs within 72 h of admission to the hospital. Following DNA extraction, microbiome analysis will be performed using 3rd generation sequencing Oxford Nanopore Technologies (ONT) for 16S rRNA and metagenomic sequencing. Alpha- and beta-diversity will be determined and correlated to the revised Atlanta classification and additional clinical outcome parameters such as the length of hospital stay, number and type of complications, number of interventions and 30-day mortality. Discussion If AP patients show a distinct orointestinal microbiome dependent on the severity and course of the disease, microbiome sequencing could rapidly be implemented in the early clinical management of AP patients in the future. Trial registration: ClinicalTrials.gov Identifier: NCT04777812
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Affiliation(s)
- C Ammer-Herrmenau
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center, Robert-Kochsstraße 40, 37075, Göttingen, Germany
| | - T Asendorf
- Department of Medical Statistics, University Medical Center, Göttingen, Germany
| | - G Beyer
- Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - S M Buchholz
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center, Robert-Kochsstraße 40, 37075, Göttingen, Germany
| | - S Cameron
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center, Robert-Kochsstraße 40, 37075, Göttingen, Germany
| | - M Damm
- Department of Medicine I, University Hospital Halle, Halle, Germany
| | - F Frost
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - R Henker
- Division of Gastroenterology, Medical Department II, University Hospital of Leipzig, Leipzig, Germany
| | - R Jaster
- Department of Medicine II, University Hospital Rostock, Rostock, Germany
| | - V Phillip
- Department of Medicine II, University Hospital rechts der Isar, Technical University Munich, Munich, Germany
| | - M Placzek
- Department of Medical Statistics, University Medical Center, Göttingen, Germany
| | - C Ratei
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center, Robert-Kochsstraße 40, 37075, Göttingen, Germany
| | - S Sirtl
- Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - T van den Berg
- Department of Medical Bioinformatics, University Medical Center, Göttingen, Germany
| | - M J Weingarten
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center, Robert-Kochsstraße 40, 37075, Göttingen, Germany
| | - J Woitalla
- Department of Medicine II, University Hospital Rostock, Rostock, Germany
| | - J Mayerle
- Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - V Ellenrieder
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center, Robert-Kochsstraße 40, 37075, Göttingen, Germany
| | - A Neesse
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center, Robert-Kochsstraße 40, 37075, Göttingen, Germany.
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15
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Tong MX, Hansen A, Hanson-Easey S, Xiang J, Cameron S, Liu Q, Liu X, Sun Y, Weinstein P, Han GS, Mahmood A, Bi P. Public health professionals' perceptions of the capacity of China's CDCs to address emerging and re-emerging infectious diseases. J Public Health (Oxf) 2021; 43:209-216. [PMID: 31251367 DOI: 10.1093/pubmed/fdz070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 01/20/2019] [Revised: 05/13/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND China's capacity to control and prevent emerging and re-emerging infectious diseases is critical to the nation's population health. This study aimed to explore the capacity of Centers for Disease Control and Prevention (CDCs) in China to deal with infectious diseases now and in the future. METHODS A survey was conducted in 2015 among 973 public health professionals at CDCs in Beijing and four provinces, to assess their capacity to deal with emerging and re-emerging infectious diseases. RESULTS Although most professionals were confident with the current capacity of CDCs to cope with outbreaks, nearly all indicated more funding was required to meet future challenges. Responses indicated that Yunnan Province faced more challenges than Anhui, Henan and Liaoning Provinces in being completely prepared and able to deal with outbreaks. Participants aged 20-39 years were more likely than those aged 40 and over to believe strategies such as interdisciplinary and international collaborations for disease surveillance and control, would assist capacity building. CONCLUSION The capacity of China's CDCs to deal with infectious diseases was excellent. However, findings suggest it is imperative to increase the number of skilled CDC staff, financial support, and strengthen county level staff training and health education programs.
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Affiliation(s)
- Michael Xiaoliang Tong
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
| | - Alana Hansen
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
| | - Scott Hanson-Easey
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
| | - Jianjun Xiang
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
| | - Scott Cameron
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
| | - Qiyong Liu
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaobo Liu
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yehuan Sun
- Department of Epidemiology, Anhui Medical University, Hefei, Anhui, China
| | - Philip Weinstein
- School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Gil-Soo Han
- Communications & Media Studies, School of Media, Film and Journalism, Monash University, Clayton, Victoria, Australia
| | - Afzal Mahmood
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
| | - Peng Bi
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
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16
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Dasgupta R, Cameron S, Aucott L, Maclennan G, Thomas R, N’dow J, Norrie J, Anson K, Keeley F, Maclennan S, Starr K, Mcclinton S. TISU (Therepeutic Intervention for Stones in the Ureter): ESWL versus Ureteroscopy, a multicentre RCT. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00660-6] [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: 12/01/2022]
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17
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Jami SA, Cameron S, Wong JM, Daly ER, McAllister AK, Gray JA. Increased excitation-inhibition balance and loss of GABAergic synapses in the serine racemase knockout model of NMDA receptor hypofunction. J Neurophysiol 2021; 126:11-27. [PMID: 34038186 DOI: 10.1152/jn.00661.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
There is substantial evidence that both N-methyl-D-aspartate receptor (NMDAR) hypofunction and dysfunction of GABAergic neurotransmission contribute to schizophrenia, though the relationship between these pathophysiological processes remains largely unknown. Although models using cell-type-specific genetic deletion of NMDARs have been informative, they display overly pronounced phenotypes extending beyond those of schizophrenia. Here, we used the serine racemase knockout (SRKO) mice, a model of reduced NMDAR activity rather than complete receptor elimination, to examine the link between NMDAR hypofunction and decreased GABAergic inhibition. The SRKO mice, in which there is a >90% reduction in the NMDAR coagonist d-serine, exhibit many of the neurochemical and behavioral abnormalities observed in schizophrenia. We found a significant reduction in inhibitory synapses onto CA1 pyramidal neurons in the SRKO mice. This reduction increases the excitation/inhibition balance resulting in enhanced synaptically driven neuronal excitability without changes in intrinsic excitability. Consistently, significant reductions in inhibitory synapse density in CA1 were observed by immunohistochemistry. We further show, using a single-neuron genetic deletion approach, that the loss of GABAergic synapses onto pyramidal neurons observed in the SRKO mice is driven in a cell-autonomous manner following the deletion of SR in individual CA1 pyramidal cells. These results support a model whereby NMDAR hypofunction in pyramidal cells disrupts GABAergic synapses leading to disrupted feedback inhibition and impaired neuronal synchrony.NEW & NOTEWORTHY Recently, disruption of excitation/inhibition (E/I) balance has become an area of considerable interest for psychiatric research. Here, we report a reduction in inhibition in the serine racemase knockout mouse model of schizophrenia that increases E/I balance and enhances synaptically driven neuronal excitability. This reduced inhibition was driven cell-autonomously in pyramidal cells lacking serine racemase, suggesting a novel mechanism for how chronic NMDA receptor hypofunction can disrupt information processing in schizophrenia.
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Affiliation(s)
- Shekib A Jami
- Center for Neuroscience, University of California, Davis, California
| | - Scott Cameron
- Center for Neuroscience, University of California, Davis, California
| | - Jonathan M Wong
- Center for Neuroscience, University of California, Davis, California
| | - Emily R Daly
- Center for Neuroscience, University of California, Davis, California
| | - A Kimberley McAllister
- Center for Neuroscience, University of California, Davis, California.,Department of Neurobiology, Physiology, and Behavior, University of California, Davis, California.,Department of Neurology, University of California, Davis, California
| | - John A Gray
- Center for Neuroscience, University of California, Davis, California.,Department of Neurology, University of California, Davis, California
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Alkharabsheh S, Khayata M, Alencherry B, Hussain M, Cameron S, Gomes M, Collier P. SYSTEMIC REVIEW AND META-ANALYSIS OF VITAMIN K ANTAGONIST VS DIRECT ORAL ANTICOAGULANTS FOR TREATMENT OF LEFT VENTRICULAR THROMBUS. J Am Coll Cardiol 2021. [DOI: 10.1016/s0735-1097(21)03154-5] [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: 10/21/2022]
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Bhandari R, Gupta N, Nemet I, Cameron S, Hazen S. INHIBITION OF GUT MICROBIOTA-DEPENDENT TRIMETHYLAMINE N-OXIDE PRODUCTION RESCUES SYSTOLIC CARDIAC FUNCTION IN A MURINE MODEL OF RENAL DYSFUNCTION. J Am Coll Cardiol 2021. [DOI: 10.1016/s0735-1097(21)04754-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Bhandari R, Sahai A, Elbadawi A, Elgendy I, Koupenova M, Freedman J, Godwin M, Aggarwal A, Timpanaro-Perotta L, Chung M, McIntyre T, Kalra A, Bartholomew J, McCrae K, Svensson L, Kapadia S, Cameron S. SARS-COV-2 PLATELET FUNCTION & THROMBOTIC COMPLICATIONS: EFFECTS OF ASPIRIN THERAPY IN COVID-19. J Am Coll Cardiol 2021. [PMCID: PMC8091338 DOI: 10.1016/s0735-1097(21)04477-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Page NF, Gandal MJ, Estes ML, Cameron S, Buth J, Parhami S, Ramaswami G, Murray K, Amaral DG, Van de Water JA, Schumann CM, Carter CS, Bauman MD, McAllister AK, Geschwind DH. Alterations in Retrotransposition, Synaptic Connectivity, and Myelination Implicated by Transcriptomic Changes Following Maternal Immune Activation in Nonhuman Primates. Biol Psychiatry 2021; 89:896-910. [PMID: 33386132 PMCID: PMC8052273 DOI: 10.1016/j.biopsych.2020.10.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Maternal immune activation (MIA) is a proposed risk factor for multiple neuropsychiatric disorders, including schizophrenia. However, the molecular mechanisms through which MIA imparts risk remain poorly understood. A recently developed nonhuman primate model of exposure to the viral mimic poly:ICLC during pregnancy shows abnormal social and repetitive behaviors and elevated striatal dopamine, a molecular hallmark of human psychosis, providing an unprecedented opportunity for studying underlying molecular correlates. METHODS We performed RNA sequencing across psychiatrically relevant brain regions (prefrontal cortex, anterior cingulate, hippocampus) and primary visual cortex for comparison from 3.5- to 4-year-old male MIA-exposed and control offspring-an age comparable to mid adolescence in humans. RESULTS We identify 266 unique genes differentially expressed in at least one brain region, with the greatest number observed in hippocampus. Co-expression networks identified region-specific alterations in synaptic signaling and oligodendrocytes. Although we observed temporal and regional differences, transcriptomic changes were shared across first- and second-trimester exposures, including for the top differentially expressed genes-PIWIL2 and MGARP. In addition to PIWIL2, several other regulators of retrotransposition and endogenous transposable elements were dysregulated following MIA, potentially connecting MIA to retrotransposition. CONCLUSIONS Together, these results begin to elucidate the brain-level molecular processes through which MIA may impart risk for psychiatric disease.
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Affiliation(s)
- Nicholas F Page
- Department of Psychiatry, Center for Autism Research and Treatment, Los Angeles, California; Department of Cell Biology and Neuroscience, Rutgers University-New Brunswick, Piscataway, New Jersey
| | - Michael J Gandal
- Department of Psychiatry, Center for Autism Research and Treatment, Los Angeles, California
| | - Myka L Estes
- Center for Neuroscience, School of Medicine, University of California, Davis, Davis, California
| | - Scott Cameron
- Center for Neuroscience, School of Medicine, University of California, Davis, Davis, California
| | - Jessie Buth
- Department of Psychiatry, Center for Autism Research and Treatment, Los Angeles, California; Program in Neurobehavioral Genetics, Center for Autism Research and Treatment, Los Angeles, California
| | - Sepideh Parhami
- Department of Psychiatry, Center for Autism Research and Treatment, Los Angeles, California; Program in Neurobehavioral Genetics, Center for Autism Research and Treatment, Los Angeles, California
| | - Gokul Ramaswami
- Department of Psychiatry, Center for Autism Research and Treatment, Los Angeles, California; Program in Neurobehavioral Genetics, Center for Autism Research and Treatment, Los Angeles, California
| | - Karl Murray
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Davis, California
| | - David G Amaral
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Davis, California
| | - Judy A Van de Water
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Davis, California
| | - Cynthia M Schumann
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Davis, California
| | - Cameron S Carter
- Center for Neuroscience, School of Medicine, University of California, Davis, Davis, California; Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Davis, California
| | - Melissa D Bauman
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Davis, California
| | - A Kimberley McAllister
- Center for Neuroscience, School of Medicine, University of California, Davis, Davis, California; Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Davis, California
| | - Daniel H Geschwind
- Department of Psychiatry, Center for Autism Research and Treatment, Los Angeles, California; Program in Neurobehavioral Genetics, Center for Autism Research and Treatment, Los Angeles, California; Department of Neurology, Center for Autism Research and Treatment, Los Angeles, California; Department of Human Genetics, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California.
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22
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Canales CP, Estes ML, Cichewicz K, Angara K, Aboubechara JP, Cameron S, Prendergast K, Su-Feher L, Zdilar I, Kreun EJ, Connolly EC, Seo JM, Goon JB, Farrelly K, Stradleigh TW, van der List D, Haapanen L, Van de Water J, Vogt D, McAllister AK, Nord AS. Sequential perturbations to mouse corticogenesis following in utero maternal immune activation. eLife 2021; 10:e60100. [PMID: 33666173 PMCID: PMC7979158 DOI: 10.7554/elife.60100] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 03/02/2021] [Indexed: 12/13/2022] Open
Abstract
In utero exposure to maternal immune activation (MIA) is an environmental risk factor for neurodevelopmental and neuropsychiatric disorders. Animal models provide an opportunity to identify mechanisms driving neuropathology associated with MIA. We performed time-course transcriptional profiling of mouse cortical development following induced MIA via poly(I:C) injection at E12.5. MIA-driven transcriptional changes were validated via protein analysis, and parallel perturbations to cortical neuroanatomy were identified via imaging. MIA-induced acute upregulation of genes associated with hypoxia, immune signaling, and angiogenesis, by 6 hr following exposure. This acute response was followed by changes in proliferation, neuronal and glial specification, and cortical lamination that emerged at E14.5 and peaked at E17.5. Decreased numbers of proliferative cells in germinal zones and alterations in neuronal and glial populations were identified in the MIA-exposed cortex. Overall, paired transcriptomic and neuroanatomical characterization revealed a sequence of perturbations to corticogenesis driven by mid-gestational MIA.
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Affiliation(s)
| | - Myka L Estes
- Center for Neuroscience, UC DavisDavisUnited States
| | | | - Kartik Angara
- Department of Pediatrics & Human Development, Michigan State UniversityEast LansingUnited States
| | | | | | | | | | - Iva Zdilar
- Center for Neuroscience, UC DavisDavisUnited States
| | | | | | | | - Jack B Goon
- Center for Neuroscience, UC DavisDavisUnited States
| | | | | | | | - Lori Haapanen
- Division of Rheumatology, Allergy and Clinical Immunology, UC DavisDavisUnited States
| | - Judy Van de Water
- Division of Rheumatology, Allergy and Clinical Immunology, UC DavisDavisUnited States
| | - Daniel Vogt
- Department of Pediatrics & Human Development, Michigan State UniversityEast LansingUnited States
| | | | - Alex S Nord
- Center for Neuroscience, UC DavisDavisUnited States
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23
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Shathur A, Patel B, Pitiyage G, Cameron S, Hyde N. Odontogenic keratocyst located in the retromolar trigone. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 132:e82-e85. [PMID: 34020916 DOI: 10.1016/j.oooo.2021.02.008] [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] [Received: 12/17/2020] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 10/22/2022]
Abstract
Odontogenic keratocysts (OKCs) are a commonly occurring, benign cystic intraosseous lesion thought to arise from the cell rests of the dental lamina. Most instances of OKC are commonly found in the posterior aspect of the mandible. In rare instances, there have been reported cases of OKCs arising in the peripheral gingiva, but these cases are few and far between. Rarer still are the few documented cases of OKCs arising in other soft tissues of the mouth. There are many divided opinions on the diagnosis of these lesions and whether they are truly odontogenic in origin, given their location when they are enucleated from a soft tissue area. To the best of our knowledge, we present the first reported case of a patient with a peripheral OKC located in the retromolar trigone. We discuss this unique case and review the current literature on peripheral OKCs.
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Affiliation(s)
- Adam Shathur
- Oral and Maxillofacial Surgery, St. George's Hospital, London, United Kingdom.
| | - B Patel
- Oral and Maxillofacial Surgery, St. George's Hospital, London, United Kingdom
| | - G Pitiyage
- St. George's Hospital, London, United Kingdom
| | - S Cameron
- Oral and Maxillofacial Surgery, St. George's Hospital, London, United Kingdom
| | - N Hyde
- Oral and Maxillofacial Surgery, St. George's Hospital, London, United Kingdom
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24
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Liu J, Hansen A, Cameron S, Williams C, Fricker S, Bi P. Using ecological variables to predict Ross River virus disease incidence in South Australia. Trans R Soc Trop Med Hyg 2021; 115:1045-1053. [PMID: 33533397 DOI: 10.1093/trstmh/traa201] [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: 06/20/2020] [Revised: 11/23/2020] [Accepted: 01/01/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ross River virus (RRV) disease is Australia's most widespread vector-borne disease causing significant public health concern. The aim of this study was to identify the ecological covariates of RRV risk and to develop epidemic forecasting models in a disease hotspot region of South Australia. METHODS Seasonal autoregressive integrated moving average models were used to predict the incidence of RRV disease in the Riverland region of South Australia, an area known to have a high incidence of the disease. The model was developed using data from January 2000 to December 2012 then validated using disease notification data on reported cases for the following year. RESULTS Monthly numbers of the mosquito Culex annulirostris (β=0.033, p<0.001) and total rainfall (β=0.263, p=0.002) were significant predictors of RRV transmission in the study region. The forecasted RRV incidence in the predictive model was generally consistent with the actual number of cases in the study area. CONCLUSIONS A predictive model has been shown to be useful in forecasting the occurrence of RRV disease, with increased vector populations and rainfall being important factors associated with transmission. This approach may be useful in a public health context by providing early warning of vector-borne diseases in other settings.
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Affiliation(s)
- Jingwen Liu
- School of Public Health, The University of Adelaide, Adelaide, Australia
| | - Alana Hansen
- School of Public Health, The University of Adelaide, Adelaide, Australia
| | - Scott Cameron
- School of Public Health, The University of Adelaide, Adelaide, Australia
| | - Craig Williams
- Australian Centre for Precision Health, University of South Australia, Adelaide, Australia
| | - Stephen Fricker
- Australian Centre for Precision Health, University of South Australia, Adelaide, Australia
| | - Peng Bi
- School of Public Health, The University of Adelaide, Adelaide, Australia
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25
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Latrous M, Zhu R, Jeimy S, Mack D, Soller L, Chan E, Protudjer J, Hanna M, Abrams E, Cook V, Cameron S, Erdle S, Wong T. Web-based Infant Food Introduction (WIFI): Improving Access to Allergist-supervised Infant Food Introduction. J Allergy Clin Immunol 2021. [DOI: 10.1016/j.jaci.2020.12.599] [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: 10/22/2022]
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26
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Minami H, Doi T, Toyoda M, Imamura Y, Kiyota N, Mitsuma A, Shimokata T, Naito Y, Matsubara N, Tajima T, Tokushige K, Ishihara K, Cameron S, Ando Y. Phase I study of the antiprogrammed cell death-1 Ab spartalizumab (PDR001) in Japanese patients with advanced malignancies. Cancer Sci 2021; 112:725-733. [PMID: 33031626 PMCID: PMC7893979 DOI: 10.1111/cas.14678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/22/2020] [Accepted: 09/30/2020] [Indexed: 01/01/2023] Open
Abstract
Spartalizumab is a humanized IgG4/κ mAb directed against human programmed cell death-1 (PD-1). In this phase I study, we investigated safety, pharmacokinetics, preliminary antitumor activity, and toxicity of spartalizumab in patients with advanced malignancies. Patients (n = 18) with a range of tumor types received spartalizumab i.v. at doses of 1, 3, and 10 mg/kg every 2 weeks until disease progression, unacceptable toxicity, or discontinuation at the discretion of the investigator or patient. Most patients (61%) had received five or more prior lines of therapy. No dose-limiting toxicities were reported and, hence, the maximum tolerated dose was 10 mg/kg or more. Pharmacokinetics in Japanese patients aligned with those reported in a global dose-escalation study. The safety profile was consistent with other approved anti-PD-1 mAbs; the most common drug-related adverse events were maculopapular rash (22%), followed by malaise and increased blood alkaline phosphatase (11% each). Partial responses were reported in two patients (11%), one with transitional cell carcinoma and the other with hepatocellular carcinoma. In conclusion, this study confirmed the safety of spartalizumab given at a dose of up to 10 mg/kg every 2 weeks in Japanese patients with cancers.
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Affiliation(s)
- Hironobu Minami
- Kobe University Graduate School of Medicine and HospitalKobeJapan
| | | | - Masanori Toyoda
- Kobe University Graduate School of Medicine and HospitalKobeJapan
| | | | - Naomi Kiyota
- Kobe University Graduate School of Medicine and HospitalKobeJapan
| | | | | | - Yoichi Naito
- National Cancer Center Hospital EastKashiwaJapan
| | | | | | | | | | - Scott Cameron
- Novartis Institutes for BioMedical ResearchCambridgeMAUSA
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27
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Cameron S, Hoskinson J, Alex CE. MRI and pathological findings in a cat with cranial thoracic vertebral canal stenosis. J Small Anim Pract 2020; 62:502. [PMID: 33094838 DOI: 10.1111/jsap.13256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 10/05/2020] [Accepted: 10/08/2020] [Indexed: 11/29/2022]
Affiliation(s)
- S Cameron
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, 2015 Linden Drive, Madison, WI, 53706, USA
| | - J Hoskinson
- Department of Radiology, Hoskinson, DACVR, LLC, Denver, CO, 80513, USA
| | - C E Alex
- School of Veterinary Medicine, University of California, Davis, CA, 95616, USA
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28
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Lachant D, Bach C, Wilson B, Chengazi V, Goldman B, Lachant N, Pietropaoli A, Cameron S, James White R. Clinical and imaging outcomes after intermediate- or high-risk pulmonary embolus. Pulm Circ 2020; 10:2045894020952019. [PMID: 33014336 PMCID: PMC7509735 DOI: 10.1177/2045894020952019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 08/02/2020] [Indexed: 11/25/2022] Open
Abstract
Long-term outcomes after acute pulmonary embolism vary from complete resolution to chronic thromboembolic pulmonary hypertension (CTEPH). Guidelines after acute pulmonary embolism are generally limited to anticoagulation duration. We assessed patients with estimated prognosis >1 year in our pulmonary hypertension clinic 2–4 months after treatment for intermediate- or high-risk acute pulmonary embolism. At follow-up, ventilation–perfusion scan and echocardiogram were offered. The aim of this study was to assess for recurrent symptomatic disease, residual imaging defects or right ventricular dysfunction, and functional disability after acute management of pulmonary embolism. After treatment for acute intermediate- or high-risk pulmonary embolism, 104 patients followed up in pulmonary hypertension clinic. Of those, 55% of patients had self-reported limitation in activity. No patients had symptomatic recurrence of pulmonary embolism. Forty-eight percent of patients had residual perfusion defects on perfusion imaging, while 91% of patients had either normal or only mildly enlarged right ventricles. We identified heart failure preserved ejection fraction, iron deficiency, and obstructive sleep apnea as significant contributors to breathlessness. Treatment of these conditions was associated with improvement. Surprisingly, we diagnosed CTEPH in nine patients; for some, chronic thrombus may already have been present at the time of index evaluation. Our findings suggest that follow-up in a dedicated pulmonary hypertension clinic 2–4 months after acute intermediate- or high-risk pulmonary embolism may add value to patient care. We identified treatable comorbidities that could be contributing to post-pulmonary embolism syndrome as well as CTEPH.
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Affiliation(s)
- Daniel Lachant
- Division of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, Rochester, NY, USA
- Daniel Lachant, Mary Parkes Allergy and Asthma Center, 400 Red Creek Dr Suite 110, Rochester, NY 14623, USA.
| | - Christina Bach
- Division of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Bennett Wilson
- Division of Pathology, University of Rochester Medical Center, Rochester, NY, USA
| | - Vaseem Chengazi
- Division of Radiology and Nuclear Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Bruce Goldman
- Division of Pathology, University of Rochester Medical Center, Rochester, NY, USA
| | - Neil Lachant
- Division of Hematology at the Wilmont Cancer Center, University of Rochester Medical Center, Rochester, NY, USA
| | - Anthony Pietropaoli
- Division of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Scott Cameron
- Division of Cardiology, University of Rochester Medical Center, Rochester, NY, USA
| | - R. James White
- Division of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, Rochester, NY, USA
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29
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Capdevila J, Wirth LJ, Ernst T, Ponce Aix S, Lin CC, Ramlau R, Butler MO, Delord JP, Gelderblom H, Ascierto PA, Fasolo A, Führer D, Hütter-Krönke ML, Forde PM, Wrona A, Santoro A, Sadow PM, Szpakowski S, Wu H, Bostel G, Faris J, Cameron S, Varga A, Taylor M. PD-1 Blockade in Anaplastic Thyroid Carcinoma. J Clin Oncol 2020; 38:2620-2627. [PMID: 32364844 PMCID: PMC7476256 DOI: 10.1200/jco.19.02727] [Citation(s) in RCA: 147] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2020] [Indexed: 12/22/2022] Open
Abstract
PURPOSE Anaplastic thyroid carcinoma is an aggressive malignancy that is almost always fatal and lacks effective systemic treatment options for patients with BRAF-wild type disease. As part of a phase I/II study in patients with advanced/metastatic solid tumors, patients with anaplastic thyroid carcinoma were treated with spartalizumab, a humanized monoclonal antibody against the programmed death-1 (PD-1) receptor. METHODS We enrolled patients with locally advanced and/or metastatic anaplastic thyroid carcinoma in a phase II cohort of the study. Patients received 400 mg spartalizumab intravenously, once every 4 weeks. The overall response rate was determined according to RECIST v1.1. RESULTS Forty-two patients were enrolled. Adverse events were consistent with those previously observed with PD-1 blockade. Most common treatment-related adverse events were diarrhea (12%), pruritus (12%), fatigue (7%), and pyrexia (7%). The overall response rate was 19%, including three patients with a complete response and five with a partial response. Most patients had baseline tumor biopsies positive for PD-L1 expression (n = 28/40 evaluable), and response rates were higher in PD-L1-positive (8/28; 29%) versus PD-L1-negative (0/12; 0%) patients. The highest rate of response was observed in the subset of patients with PD-L1 ≥ 50% (6/17; 35%). Responses were seen in both BRAF-nonmutant and BRAF-mutant patients and were durable, with a 1-year survival of 52.1% in the PD-L1-positive population. CONCLUSION To our knowledge, this is the first clinical trial to show responsiveness of anaplastic thyroid carcinoma to PD-1 blockade.
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Affiliation(s)
- Jaume Capdevila
- Vall d’Hebron University Hospital, Vall d’Hebron Institute of Oncology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lori J. Wirth
- Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Thomas Ernst
- Abteilung Hämatologie/Onkologie, Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | | | - Chia-Chi Lin
- National Taiwan University Hospital, Taipei, Taiwan
| | - Rodryg Ramlau
- Poznań University of Medical Sciences, Poznań, Poland
| | - Marcus O. Butler
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | | | | | - Paolo A. Ascierto
- Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | | | | | | | - Patrick M. Forde
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Anna Wrona
- Uniwersyteckie Centrum Kliniczne, Gdansk, Poland
| | - Armando Santoro
- IRCCS Humanitas Clinical and Research Center–Humanitas University, Rozzano, Italy
| | - Peter M. Sadow
- Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | | | | | | | - Jason Faris
- Novartis Institutes for BioMedical Research, Cambridge, MA
| | - Scott Cameron
- Novartis Institutes for BioMedical Research, Cambridge, MA
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30
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Barnes GD, Muzikansky A, Cameron S, Giri J, Heresi GA, Jaber W, Wood T, Todoran TM, Courtney DM, Tapson V, Kabrhel C. Comparison of 4 Acute Pulmonary Embolism Mortality Risk Scores in Patients Evaluated by Pulmonary Embolism Response Teams. JAMA Netw Open 2020; 3:e2010779. [PMID: 32845326 PMCID: PMC7450352 DOI: 10.1001/jamanetworkopen.2020.10779] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
IMPORTANCE The risk of death from acute pulmonary embolism can range as high as 15%, depending on patient factors at initial presentation. Acute treatment decisions are largely based on an estimate of this mortality risk. OBJECTIVE To assess the performance of risk assessment scores in a modern, US cohort of patients with acute pulmonary embolism. DESIGN, SETTING, AND PARTICIPANTS This multicenter cohort study was conducted between October 2016 and October 2017 at 8 hospitals participating in the Pulmonary Embolism Response Team (PERT) Consortium registry. Included patients were adults who presented with acute pulmonary embolism and had sufficient information in the medical record to calculate risk scores. Data analysis was performed from March to May 2020. MAIN OUTCOMES AND MEASURES All-cause mortality (7- and 30-day) and associated discrimination were assessed by the area under the receiver operator curve (AUC). RESULTS Among 416 patients with acute pulmonary embolism (mean [SD] age, 61.3 [17.6] years; 207 men [49.8%]), 7-day mortality in the low-risk groups ranged from 1.3% (1 patient) to 3.1% (4 patients), whereas 30-day mortality ranged from 2.6% (1 patient) to 10.2% (13 patients). Among patients in the highest-risk groups, the 7-day mortality ranged from 7.0% (18 patients) to 16.3% (7 patients), whereas 30-day mortality ranged from 14.4% (37 patients) to 26.3% (26 patients). Each of the risk stratification tools had modest discrimination for 7-day mortality (AUC range, 0.616-0.666) with slightly lower discrimination for 30-day mortality (AUC range, 0.550-0.694). CONCLUSIONS AND RELEVANCE These findings suggest that commonly used risk tools for acute pulmonary embolism have modest estimating ability. Future studies to develop and validate better risk assessment tools are needed.
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Affiliation(s)
- Geoffrey D. Barnes
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan, Ann Arbor
| | | | - Scott Cameron
- Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Jay Giri
- Department of Internal Medicine, University of Pennsylvania, Philadelphia
| | - Gustavo A. Heresi
- Department of Pulmonary and Critical Care Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Wissam Jaber
- Division of Cardiology, Department of Internal Medicine, Emory University, Atlanta, Georgia
| | - Todd Wood
- Division of Cardiology, Department of Internal Medicine, Lancaster General Hospital, Lancaster, Pennsylvania
| | - Thomas M. Todoran
- Division of Cardiovascular Medicine, Department of Internal Medicine, Medical University of South Carolina, Charleston
| | - D. Mark Courtney
- Department of Emergency Medicine, University of Texas Southwestern, Dallas
| | - Victor Tapson
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Cedars-Sinai Hospital, Los Angeles, California
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31
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Estes ML, Prendergast K, MacMahon JA, Cameron S, Aboubechara JP, Farrelly K, Sell GL, Haapanen L, Schauer JD, Horta A, Shaffer IC, Le CT, Kincheloe GN, Tan DJ, van der List D, Bauman MD, Carter CS, Van de Water J, McAllister AK. Baseline immunoreactivity before pregnancy and poly(I:C) dose combine to dictate susceptibility and resilience of offspring to maternal immune activation. Brain Behav Immun 2020; 88:619-630. [PMID: 32335198 PMCID: PMC7415552 DOI: 10.1016/j.bbi.2020.04.061] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/19/2020] [Accepted: 04/22/2020] [Indexed: 12/20/2022] Open
Abstract
Despite the potential of rodent models of maternal immune activation (MIA) to identify new biomarkers and therapeutic interventions for a range of psychiatric disorders, current approaches using these models ignore two of the most important aspects of this risk factor for human disease: (i) most pregnancies are resilient to maternal viral infection and (ii) susceptible pregnancies can lead to different combinations of phenotypes in offspring. Here, we report two new sources of variability-the baseline immunoreactivity (BIR) of isogenic females prior to pregnancy and differences in immune responses in C57BL/6 dams across vendors-that contribute to resilience and susceptibility to distinct combinations of behavioral and biological outcomes in offspring. Similar to the variable effects of human maternal infection, MIA in mice does not cause disease-related phenotypes in all pregnancies and a combination of poly(I:C) dose and BIR predicts susceptibility and resilience of pregnancies to aberrant repetitive behaviors and alterations in striatal protein levels in offspring. Even more surprising is that the intermediate levels of BIR and poly(I:C) dose are most detrimental to offspring, with higher BIR and poly(I:C) doses conferring resilience to measured phenotypes in offspring. Importantly, we identify the BIR of female mice as a biomarker before pregnancy that predicts which dams will be most at risk as well as biomarkers in the brains of newborn offspring that correlate with changes in repetitive behaviors. Together, our results highlight considerations for optimizing MIA protocols to enhance rigor and reproducibility and reveal new factors that drive susceptibility of some pregnancies and resilience of others to MIA-induced abnormalities in offspring.
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Affiliation(s)
- Myka L Estes
- Center for Neuroscience, University of California, Davis, United States
| | | | - Jeremy A MacMahon
- Center for Neuroscience, University of California, Davis, United States
| | - Scott Cameron
- Center for Neuroscience, University of California, Davis, United States
| | | | - Kathleen Farrelly
- Center for Neuroscience, University of California, Davis, United States
| | - Gabrielle L Sell
- Center for Neuroscience, University of California, Davis, United States
| | - Lori Haapanen
- Department of Internal Medicine, University of California, Davis, United States
| | - Joseph D Schauer
- Department of Internal Medicine, University of California, Davis, United States
| | - Aurora Horta
- Center for Neuroscience, University of California, Davis, United States
| | - Ida C Shaffer
- Center for Neuroscience, University of California, Davis, United States
| | - Catherine T Le
- Center for Neuroscience, University of California, Davis, United States; Department of Dermatology, University of California, Davis, United States
| | - Greg N Kincheloe
- Center for Neuroscience, University of California, Davis, United States
| | - Danielle John Tan
- Center for Neuroscience, University of California, Davis, United States
| | | | - Melissa D Bauman
- Dept. of Psychiatry, University of California, Davis, United States
| | - Cameron S Carter
- Center for Neuroscience, University of California, Davis, United States; Dept. of Psychiatry, University of California, Davis, United States; Imaging Research Center, University of California, Davis, United States
| | - Judy Van de Water
- Department of Internal Medicine, University of California, Davis, United States
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Bamanga R, Y. Deeni Y, Spiers A, Cameron S. Characterisation of surfactant-expressing bacteria and their potential bioremediation properties from hydrocarbon-contaminated and uncontaminated soils. Access Microbiol 2020. [DOI: 10.1099/acmi.ac2020.po0506] [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: 11/18/2022] Open
Abstract
We are investigating characteristics associated with oil degradation amongst bacteria isolated from clean and hydrocarbon contaminated soils from Nigeria and the UK.Our focus has been to identify bacteria expressing surfactants following isolation on Pseudomonas selective (PSA-CFC) and non-selective nutrient media and investigate the nature of surfactants, heavy metal resistance and hydrocarbon-degrading enzymes expressed by the bacteria. Of five sites sampled, a total of 1460 colonies were tested using the drop collapse assay, and 110 were found to express surfactants reducing liquid surface tensions as assessed by quantitative tensiometry to between 24.7 and 26.7 mN.m-1 (Tukey-Kramer HSD, α=0.05). We undertook a range of growth and behaviour-based assays on 60 selected strain which, when investigated by Hierarchical cluster analysis (HCA) demonstrated that this collection showed considerable phenotypic diversity. Eight out of the 60 strains could grow at a high temperature (50 °C), 35 of the 60 strains utilized diesel as a sole carbon source, and most of the strains could tolerate high concentrations (up to 20 mM) of heavy metals. Identification by 16S rDNA sequencing revealed that some of the strains belong to Pseudomonas, Bacillus, and Stenotrophomonas genera. We found using bioinformatics analysis of eight-selected draft genome sequences (AntiSMASH and RAST) NRPS-like (probable surfactants), cytochrome P450, catechol-1,2/2,3-dioxygenase, lipase, and heavy metal resistance gene sequences. We intend to use the information provided in this research to select strains for potential applications in in-situor ex-situ bioremediation of hydrocarbon-contaminated soils.
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Jerdan R, Cameron S, Donaldson E, Spiers A. Selection and niche trade-offs in biofilm-forming bacterial communities in experimental microcosms. Access Microbiol 2020. [DOI: 10.1099/acmi.ac2020.po0225] [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: 11/18/2022] Open
Abstract
Static microcosms are a well-established system used to study the adaptive radiation of Pseudomonas fluorescens SBW25 and the adaptive biofilm-forming mutants known as the Wrinkly Spreaders (WS). We have developed this system to investigate selection within multi-species communities using a soil-wash inoculum dominated by biofilm-competent pseudomonads. Here we present community and isolate-level analyses of one serial-transfer experiment in which replicate populations were selected for over ten transfers and 60 days. Although no significant trends in improving community biofilm characteristics or total microcosm productivity were observed, a significant shift in biofilm-formation and microcosm growth by individual isolates recovered from the initial soil-wash inoculum and final transfers indicated that these communities were subject to selection for growth in these microcosms. Surprisingly, the fitness of the archetypal WS was poor when competing against community samples, and having compared the cell densities in the low-O2 region of liquid column below the biofilm, we suggest that part of the community’s fitness advantage comes from the ability to colonise this under-utilised niche as well as to compete at the A-L interface. Samples from the community biofilms and the low-O2 region were able to re-colonize both niches and many final transfer isolates grew throughout the liquid column as well as forming A-L interface biofilms. This suggests that there is a trade-off between fast growth under highly competitive conditions at the A-L interface and slower growth with less competition in the low-O2 region, with some isolates taking a bet-hedging approach a colonizing both niches in our microcosm system.
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Koza A, Jerdan R, Cameron S, Spiers AJ. Three biofilm types produced by a model pseudomonad are differentiated by structural characteristics and fitness advantage. Microbiology (Reading) 2020; 166:707-716. [PMID: 32520698 DOI: 10.1099/mic.0.000938] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Model bacterial biofilm systems suggest that bacteria produce one type of biofilm, which is then modified by environmental and physiological factors, although the diversification of developing populations might result in the appearance of adaptive mutants producing altered structures with improved fitness advantage. Here we compare the air-liquid (A-L) interface viscous mass (VM) biofilm produced by Pseudomonas fluorescens SBW25 and the wrinkly spreader (WS) and complementary biofilm-forming strain (CBFS) biofilm types produced by adaptive SBW25 mutants in order to better understand the link between these physical structures and the fitness advantage they provide in experimental microcosms. WS, CBFS and VM biofilms can be differentiated by strength, attachment levels and rheology, as well as by strain characteristics associated with biofilm formation. Competitive fitness assays demonstrate that they provide similar advantages under static growth conditions but respond differently to increasing levels of physical disturbance. Pairwise competitions between biofilms suggest that these strains must be competing for at least two growth-limiting resources at the A-L interface, most probably O2 and nutrients, although VM and CBFS cells located lower down in the liquid column might provide an additional fitness advantage through the colonization of a less competitive zone below the biofilm. Our comparison of different SBW25 biofilm types illustrates more generally how varied biofilm characteristics and fitness advantage could become among adaptive mutants arising from an ancestral biofilm-forming strain and raises the question of how significant these changes might be in a range of medical, biotechnological and industrial contexts where diversification and change may be problematic.
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Affiliation(s)
- Anna Koza
- School of Applied Sciences, Abertay University, Bell Street, Dundee DD1 1HG, UK
| | - Robyn Jerdan
- School of Applied Sciences, Abertay University, Bell Street, Dundee DD1 1HG, UK
| | - Scott Cameron
- School of Applied Sciences, Abertay University, Bell Street, Dundee DD1 1HG, UK
| | - Andrew J Spiers
- School of Applied Sciences, Abertay University, Bell Street, Dundee DD1 1HG, UK
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Cameron S, Brown C, Rodgers N, Purba A, MacDonald-Johns R, Jozlowski K, Carrolan V, Pond J, Patel N, Whitehouse J, Rashid R, Nash E. P317 Patient experience and satisfaction with 0.9% saline nasal irrigation (SNI) in a large UK adult cystic fibrosis centre and potential barriers to use. J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30646-9] [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: 10/24/2022]
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Cameron S, Brown C, Rodgers N, Purba A, MacDonald-Johns R, Jozlowski K, Carrolan V, Pond J, Patel N, Whitehouse J, Rashid R, Nash E. P312 Patient reported use, effects and tolerance of 0.9% saline nasal irrigation (SNI) in a large UK adult cystic fibrosis centre. J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30641-x] [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: 10/24/2022]
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Ayers B, Wood K, Cameron S, Marinescu M, Bjelic M, Barrus B, Gosev I. Surgical Pulmonary Embolectomy With No Systemic Anticoagulation for Patient With Recent Stroke. Ann Thorac Surg 2020; 110:e493-e495. [PMID: 32473129 DOI: 10.1016/j.athoracsur.2020.04.033] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/03/2020] [Accepted: 04/06/2020] [Indexed: 11/16/2022]
Abstract
We present the successful use of surgical embolectomy (SE) without systemic anticoagulation to treat a complicated case of pulmonary embolism. The patient presented with an embolic cerebrovascular accident and subsequently developed a massive pulmonary embolism. Because of the risk of hemorrhagic transformation, the decision was made to proceed with emergent SE on venoarterial extracorporeal membrane oxygenation support without anticoagulation. The surgery was performed without complication. The potential to perform SE without anticoagulation could potentially decrease the incidence of surgical bleeding and make SE a therapeutic option for patients with contraindications to anticoagulation. Further research is needed to substantiate the efficacy of this treatment strategy.
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Affiliation(s)
- Brian Ayers
- Division of Cardiac Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, New York
| | - Katherine Wood
- Division of Cardiac Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, New York
| | - Scott Cameron
- Division of Cardiology, Department of Medicine, University of Rochester Medical Center, Rochester, New York
| | - Mark Marinescu
- Division of Cardiology, Department of Medicine, University of Rochester Medical Center, Rochester, New York
| | - Milica Bjelic
- Division of Cardiac Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, New York
| | - Bryan Barrus
- Division of Cardiac Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, New York
| | - Igor Gosev
- Division of Cardiac Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, New York.
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Liu J, Hansen A, Cameron S, Bi P. The geography of Ross River virus infection in South Australia, 2000-2013. Commun Dis Intell (2018) 2020; 44. [PMID: 32418511 DOI: 10.33321/cdi.2020.44.39] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Introduction Ross River virus (RRV) disease is Australia's most common arthropod-borne disease which has an important impact on population health and productivity. The aim of this study was to identify the spatial and temporal distribution of RRV notifications during 2000-2013 in South Australia (SA). Methods The epidemiologic patterns of RRV notifications in SA from January 2000 to December 2013 were examined at a statistical local area (SLA) level. Spatial-temporal analyses were conducted using patient-reported place of exposure to characterise the recurrence of RRV infection stratified by age and sex. Results During the study period, a total of 3,687 RRV disease notifications were recorded in the state with state-wide mean annual rates of 16.8 cases per 100,000 persons and a 1:1.32 male:female ratio. The SLAs reporting cases of RRV disease exhibited spatial and temporal variation. Notified cases of RRV disease occurred more frequently in summer and autumn. A geographic expansion was observed of the area within which RRV cases occur. The comparison of age- and sex-standardised incidence rates, calculated by place of residence and patient-reported place of exposure, highlights the importance of using the latter to accurately display geospatial disease trends over time. Areas with the largest proportion of visitor cases and having the highest risk were mostly along the River Murray, which provides many vector mosquito habitats. Conclusion Although public health interventions should be considered in all SLAs where RRV occurs, we suggest that priority should be given to the Riverland areas identified as highest risk.
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Affiliation(s)
- Jingwen Liu
- School of Public Health, University of Adelaide, South Australia
| | - Alana Hansen
- School of Public Health, University of Adelaide, South Australia
| | - Scott Cameron
- School of Public Health, University of Adelaide, South Australia
| | - Peng Bi
- School of Public Health, University of Adelaide, South Australia
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Naing A, Gainor JF, Gelderblom H, Forde PM, Butler MO, Lin CC, Sharma S, Ochoa de Olza M, Varga A, Taylor M, Schellens JHM, Wu H, Sun H, Silva AP, Faris J, Mataraza J, Cameron S, Bauer TM. A first-in-human phase 1 dose escalation study of spartalizumab (PDR001), an anti-PD-1 antibody, in patients with advanced solid tumors. J Immunother Cancer 2020; 8:e000530. [PMID: 32179633 PMCID: PMC7073791 DOI: 10.1136/jitc-2020-000530] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Spartalizumab is a humanized IgG4κ monoclonal antibody that binds programmed death-1 (PD-1) and blocks its interaction with PD-L1 and PD-L2. This phase 1/2 study was designed to assess the safety, pharmacokinetics, and preliminary efficacy of spartalizumab in patients with advanced or metastatic solid tumors. METHODS In the phase 1 part of the study, 58 patients received spartalizumab, intravenously, at doses of 1, 3, or 10 mg/kg, administered every 2 weeks (Q2W), or 3 or 5 mg/kg every 4 weeks (Q4W). RESULTS Patients had a wide range of tumor types, most commonly sarcoma (28%) and metastatic renal cell carcinoma (10%); other tumor types were reported in ≤3 patients each. Most patients (93%) had received prior antineoplastic therapy (median three prior lines) and two-thirds of the population had tumor biopsies negative for PD-L1 expression at baseline. The maximum tolerated dose was not reached. The recommended phase 2 doses were selected as 400 mg Q4W or 300 mg Q3W. No dose-limiting toxicities were observed, and adverse events included those typical of other PD-1 antibodies. The most common treatment-related adverse events of any grade were fatigue (22%), diarrhea (17%), pruritus (14%), hypothyroidism (10%), and nausea (10%). Partial responses occurred in two patients (response rate 3.4%); one with atypical carcinoid tumor of the lung and one with anal cancer. Paired tumor biopsies from patients taken at baseline and on treatment suggested an on-treatment increase in CD8+ lymphocyte infiltration in patients with clinical benefit. CONCLUSIONS Spartalizumab was well tolerated at all doses tested in patients with previously treated advanced solid tumors. On-treatment immune activation was seen in tumor biopsies; however, limited clinical activity was reported in this heavily pretreated, heterogeneous population. The phase 2 part of this study is ongoing in select tumor types. TRIAL REGISTRATION NUMBER NCT02404441.
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Affiliation(s)
- Aung Naing
- MD Anderson Cancer Center, Houston, Texas, USA
| | | | | | | | - Marcus O Butler
- Princess Margaret Hospital Cancer Centre, Toronto, Ontario, Canada
| | - Chia-Chi Lin
- National Taiwan University Hospital, Taipei, Taiwan
| | - Sunil Sharma
- Huntsman Cancer Institute, Salt Lake City, Utah, USA
| | | | | | - Matthew Taylor
- Oregon Health & Science University, Portland, Oregon, USA
| | | | - Hongqian Wu
- Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, USA
| | - Haiying Sun
- Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, USA
| | - Antonio P Silva
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Jason Faris
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, USA
| | - Jennifer Mataraza
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, USA
| | - Scott Cameron
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, USA
| | - Todd M Bauer
- Sarah Cannon Research Institute, Nashville, Tennessee, USA
- Tennessee Oncology, PLLC, Nashville, Tennessee, USA
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Salmon CK, Pribiag H, Gizowski C, Farmer WT, Cameron S, Jones EV, Mahadevan V, Bourque CW, Stellwagen D, Woodin MA, Murai KK. Depolarizing GABA Transmission Restrains Activity-Dependent Glutamatergic Synapse Formation in the Developing Hippocampal Circuit. Front Cell Neurosci 2020; 14:36. [PMID: 32161521 PMCID: PMC7053538 DOI: 10.3389/fncel.2020.00036] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 09/29/2019] [Accepted: 02/05/2020] [Indexed: 12/27/2022] Open
Abstract
γ-Aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the mature brain but has the paradoxical property of depolarizing neurons during early development. Depolarization provided by GABAA transmission during this early phase regulates neural stem cell proliferation, neural migration, neurite outgrowth, synapse formation, and circuit refinement, making GABA a key factor in neural circuit development. Importantly, depending on the context, depolarizing GABAA transmission can either drive neural activity or inhibit it through shunting inhibition. The varying roles of depolarizing GABAA transmission during development, and its ability to both drive and inhibit neural activity, makes it a difficult developmental cue to study. This is particularly true in the later stages of development when the majority of synapses form and GABAA transmission switches from depolarizing to hyperpolarizing. Here, we addressed the importance of depolarizing but inhibitory (or shunting) GABAA transmission in glutamatergic synapse formation in hippocampal CA1 pyramidal neurons. We first showed that the developmental depolarizing-to-hyperpolarizing switch in GABAA transmission is recapitulated in organotypic hippocampal slice cultures. Based on the expression profile of K+−Cl− co-transporter 2 (KCC2) and changes in the GABA reversal potential, we pinpointed the timing of the switch from depolarizing to hyperpolarizing GABAA transmission in CA1 neurons. We found that blocking depolarizing but shunting GABAA transmission increased excitatory synapse number and strength, indicating that depolarizing GABAA transmission can restrain glutamatergic synapse formation. The increase in glutamatergic synapses was activity-dependent but independent of BDNF signaling. Importantly, the elevated number of synapses was stable for more than a week after GABAA inhibitors were washed out. Together these findings point to the ability of immature GABAergic transmission to restrain glutamatergic synapse formation and suggest an unexpected role for depolarizing GABAA transmission in shaping excitatory connectivity during neural circuit development.
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Affiliation(s)
- Christopher K Salmon
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - Horia Pribiag
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - Claire Gizowski
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - W Todd Farmer
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - Scott Cameron
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - Emma V Jones
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - Vivek Mahadevan
- Department of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Charles W Bourque
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - David Stellwagen
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - Melanie A Woodin
- Department of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Keith K Murai
- Centre for Research in Neuroscience, Department of Neurology and Neurosurgery, Brain Repair and Integrative Neuroscience Program, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
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Soller L, Abrams E, Carr S, Kapur S, Rex G, Lidman P, Leek TV, Yeung J, McHenry M, Wong T, Cook V, Hildebrand K, Gerstner T, Mak R, Hsu E, Cameron S, Chan E. First Real-World Effectiveness Analysis of Preschool Peanut Oral Immunotherapy. J Allergy Clin Immunol 2020. [DOI: 10.1016/j.jaci.2019.12.653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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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Jerdan R, Cameron S, Donaldson E, Iungin O, Moshynets OV, Spiers AJ. Community biofilm-formation, stratification and productivity in serially-transferred microcosms. FEMS Microbiol Lett 2020; 367:5989696. [PMID: 33206951 DOI: 10.1093/femsle/fnaa187] [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: 08/19/2020] [Accepted: 11/16/2020] [Indexed: 12/13/2022] Open
Abstract
The establishment of O2 gradients in liquid columns by bacterial metabolic activity produces a spatially-structured environment. This produces a high-O2 region at the top that represents an un-occupied niche which could be colonised by biofilm-competent strains. We have used this to develop an experimental model system using soil-wash inocula and a serial-transfer approach to investigate changes in community-based biofilm-formation and productivity. This involved 10 transfers of mixed-community or biofilm-only samples over a total of 10-60 days incubation. In all final-transfer communities the ability to form biofilms was retained, though in longer incubations the build-up of toxic metabolites limited productivity. Measurements of microcosm productivity, biofilm-strength and attachment levels were used to assess community-aggregated traits which showed changes at both the community and individual-strain levels. Final-transfer communities were stratified with strains demonstrating a plastic phenotype when migrating between the high and low-O2 regions. The majority of community productivity came from the O2-depleted region rather than the top of the liquid column. This model system illustrates the complexity we expect to see in natural biofilm-forming communities. The connection between biofilms and the liquid column seen here has important implications for how these structures form and respond to selective pressure.
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Affiliation(s)
- Robyn Jerdan
- School of Applied Sciences, Abertay University, Bell Street, Dundee, DD1 1HG, UK
| | - Scott Cameron
- School of Applied Sciences, Abertay University, Bell Street, Dundee, DD1 1HG, UK
| | - Emily Donaldson
- School of Applied Sciences, Abertay University, Bell Street, Dundee, DD1 1HG, UK
| | - Olga Iungin
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, IMBG - '150 Zabolotnogo Street, Kiev 03143', Ukraine.,Kyiv National University of Technologies and Design, Tech & Design - 'Nemyrovycha-Danchenka Steet, Kiev 01011', Ukraine
| | - Olena V Moshynets
- Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, IMBG - '150 Zabolotnogo Street, Kiev 03143', Ukraine
| | - Andrew J Spiers
- School of Applied Sciences, Abertay University, Bell Street, Dundee, DD1 1HG, UK
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Cameron S. Follow up after early medical abortion: less is more. BJOG 2019; 126:1545. [PMID: 31519059 DOI: 10.1111/1471-0528.15940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S Cameron
- Chalmers Centre, NHS Lothian, University of Edinburgh, Edinburgh, UK
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Wang M, Hopke PK, Masiol M, Thurston SW, Cameron S, Ling F, van Wijngaarden E, Croft D, Squizzato S, Thevenet-Morrison K, Chalupa D, Rich DQ. Changes in triggering of ST-elevation myocardial infarction by particulate air pollution in Monroe County, New York over time: a case-crossover study. Environ Health 2019; 18:82. [PMID: 31492149 PMCID: PMC6728968 DOI: 10.1186/s12940-019-0521-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 09/19/2018] [Accepted: 08/23/2019] [Indexed: 05/10/2023]
Abstract
BACKGROUND Previous studies have reported that fine particle (PM2.5) concentrations triggered ST elevation myocardial infarctions (STEMI). In Rochester, NY, multiple air quality policies and economic changes/influences from 2008 to 2013 led to decreased concentrations of PM2.5 and its major constituents (SO42-, NO3-, elemental and primary organic carbon). This study examined whether the rate of STEMI associated with increased ambient gaseous and PM component concentrations was different AFTER these air quality policies and economic changes (2014-2016), compared to DURING (2008-2013) and BEFORE these polices and changes (2005-2007). METHODS Using 921 STEMIs treated at the University of Rochester Medical Center (2005-2016) and a case-crossover design, we examined whether the rate of STEMI associated with increased PM2.5, ultrafine particles (UFP, < 100 nm), accumulation mode particles (AMP, 100-500 nm), black carbon, SO2, CO, and O3 concentrations in the previous 1-72 h was modified by the time period related to these pollutant source changes (BEFORE, DURING, AFTER). RESULTS Each interquartile range (3702 particles/cm3) increase in UFP concentration in the previous 1 h was associated with a 12% (95% CI = 3%, 22%) increase in the rate of STEMI. The effect size was larger in the AFTER period (26%) than the DURING (5%) or BEFORE periods (9%). There were similar patterns for black carbon and SO2. CONCLUSIONS An increased rate of STEMI associated with UFP and other pollutant concentrations was higher in the AFTER period compared to the BEFORE and DURING periods. This may be due to changes in PM composition (e.g. higher secondary organic carbon and particle bound reactive oxygen species) following these air quality policies and economic changes.
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Affiliation(s)
- Meng Wang
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY USA
| | - Philip K. Hopke
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY USA
- Center for Air Resources Engineering and Science, Clarkson University, Potsdam, NY USA
| | - Mauro Masiol
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY USA
- Center for Air Resources Engineering and Science, Clarkson University, Potsdam, NY USA
| | - Sally W. Thurston
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY USA
| | - Scott Cameron
- Department of Medicine, University of Rochester Medical Center, Rochester, NY USA
| | - Frederick Ling
- Department of Medicine, University of Rochester Medical Center, Rochester, NY USA
| | - Edwin van Wijngaarden
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY USA
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY USA
| | - Daniel Croft
- Department of Medicine, University of Rochester Medical Center, Rochester, NY USA
| | - Stefania Squizzato
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY USA
- Center for Air Resources Engineering and Science, Clarkson University, Potsdam, NY USA
| | - Kelly Thevenet-Morrison
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY USA
| | - David Chalupa
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY USA
| | - David Q. Rich
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY USA
- Department of Medicine, University of Rochester Medical Center, Rochester, NY USA
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY USA
- Department of Public Health Sciences, University of Rochester School of Medicine and Dentistry, 265 Crittenden Boulevard, CU 420644, Rochester, NY 14642 USA
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Fiala C, Agostini A, Bombas T, Cameron S, Lertxundi R, Lubusky M, Parachini M, Saya L, Trumbic B, Gemzell Danielsson K. Management of pain associated with up-to-9-weeks medical termination of pregnancy (MToP) using mifepristone–misoprostol regimens: expert consensus based on a systematic literature review. J OBSTET GYNAECOL 2019; 40:591-601. [DOI: 10.1080/01443615.2019.1634027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- C. Fiala
- Gynmed Clinic, Vienna, Austria
- Department of Women’s and Children’s Health, Division of Obstetrics and Gynaecology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - A. Agostini
- Obstetric and Gynecology Department, La Conception Hospital, Marseille, France
| | - T. Bombas
- Obstetric Service, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - S. Cameron
- Chalmers Centre, NHS Lothian, Edinburgh, Scotland
| | | | - M. Lubusky
- Department of Obstetrics and Gynaecology, Palacky University Hospital, Olomouc, Czech Republic
| | | | - L. Saya
- Altius Pharma CS, Paris, France
| | | | - K. Gemzell Danielsson
- Department of Women’s and Children’s Health, Division of Obstetrics and Gynaecology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
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Brown C, Cameron S, Jozlowski K, MacDonald- Johns R, Pond J, Purba A, Rodgers N, Rashid R, Whitehouse J, Nash E. P396 Patient experience and satisfaction with the AIRVO™ 2 humidification system. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30688-5] [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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Ghias M, Shaw F, Cameron S, Soliman Y, Kutner A, Reyes Gil M, Cohen S. 1010 Anemia in hidradenitis suppurativa, hepcidin as a diagnostic tool. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1086] [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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Wright C, Elbadawi A, Chen YL, Patel D, Delehanty J, Mazzillo J, Pietropaoli A, Gosev I, Cameron S. INITIATION OF A PULMONARY EMBOLISM RESPONSE TEAM: A QUALITY ASSURANCE INITIATIVE IN THE EMERGENCY DEPARTMENT. J Am Coll Cardiol 2019. [DOI: 10.1016/s0735-1097(19)32529-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Tong MX, Hansen A, Hanson-Easey S, Xiang J, Cameron S, Liu Q, Liu X, Sun Y, Weinstein P, Han GS, Williams C, Mahmood A, Bi P. Dengue control in the context of climate change: Views from health professionals in different geographic regions of China. J Infect Public Health 2018; 12:388-394. [PMID: 30606474 DOI: 10.1016/j.jiph.2018.12.010] [Citation(s) in RCA: 2] [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: 08/30/2018] [Revised: 12/10/2018] [Accepted: 12/20/2018] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND Dengue is a significant climate-sensitive disease. Public health professionals play an important role in prevention and control of the disease. This study aimed to explore dengue control and prevention in the context of climate change in China. METHODS A cross-sectional survey was conducted among 630 public health professionals in 2015. Descriptive analysis and logistic regression were performed. RESULTS More than 80% of participants from southwest and central China believed climate change would affect dengue. However, participants from northeast China were less likely to believe so (65%). Sixty-nine percent of participants in Yunnan perceived that dengue had emerged/re-emerged in recent years, compared with 40.6% in Henan and 23.8% in Liaoning. Less than 60% of participants thought current prevention and control programs had been effective. Participants believed mosquitoes in high abundance, imported cases and climate change were main risk factors for dengue in China. CONCLUSION There were varying views of dengue in China. Professionals in areas susceptible to dengue were more likely to be concerned about climate change and dengue. Current prevention and control strategies need to be improved. Providing more information for staff in lower levels of Centers for Disease Control and Prevention may help in containing a possible increase of dengue.
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Affiliation(s)
- Michael X Tong
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Alana Hansen
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Scott Hanson-Easey
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Jianjun Xiang
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Scott Cameron
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Qiyong Liu
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
| | - Xiaobo Liu
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
| | - Yehuan Sun
- Department of Epidemiology, Anhui Medical University, Hefei, Anhui, 230032, China.
| | - Philip Weinstein
- School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Gil-Soo Han
- Communications & Media Studies, School of Media, Film and Journalism, Monash University, Clayton, Victoria, 3800, Australia.
| | - Craig Williams
- School of Pharmacy & Medical Sciences, University of South Australia, Adelaide, South Australia, 5001, Australia.
| | - Afzal Mahmood
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Peng Bi
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
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Abstract
Synapse formation is mediated by a surprisingly large number and wide variety of genes encoding many different protein classes. One of the families increasingly implicated in synapse wiring is the immunoglobulin superfamily (IgSF). IgSF molecules are by definition any protein containing at least one Ig-like domain, making this family one of the most common protein classes encoded by the genome. Here, we review the emerging roles for IgSF molecules in synapse formation specifically in the vertebrate brain, focusing on examples from three classes of IgSF members: ( a) cell adhesion molecules, ( b) signaling molecules, and ( c) immune molecules expressed in the brain. The critical roles for IgSF members in regulating synapse formation may explain their extensive involvement in neuropsychiatric and neurodevelopmental disorders. Solving the IgSF code for synapse formation may reveal multiple new targets for rescuing IgSF-mediated deficits in synapse formation and, eventually, new treatments for psychiatric disorders caused by altered IgSF-induced synapse wiring.
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Affiliation(s)
- Scott Cameron
- Center for Neuroscience, University of California, Davis, California 95618, USA; ,
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