1
|
Alehashem M, Peters R, Fajana HO, Eslamizad S, Hogan N, Hecker M, Siciliano SD. Herbicides and pesticides synergistically interact at low concentrations in complex mixtures. Chemosphere 2024; 353:141431. [PMID: 38401859 DOI: 10.1016/j.chemosphere.2024.141431] [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: 11/26/2023] [Revised: 01/31/2024] [Accepted: 02/08/2024] [Indexed: 02/26/2024]
Abstract
Assessing a complex mixture of pesticides at the impacted sites has been challenging for risk assessors for 50 years. The default assumption is that at low concentrations, pesticides interact additively with one another; thus, the risk posed by each component of a complex mixture could be simply added up. The EPA interaction-based hazard index (HIInteraction) modifies this assumption using a binary weight-of-evidence (BINWOE). However, data gaps often preclude HIInteraction use at most sites. This study evaluated these assumptions using the BINWOE to estimate the hazard index (HI) of select pesticide mixtures. The lack of in vivo binary interaction data led us to use a cell line, SH-SY5Y, to obtain the data necessary for the BINWOE approach. In the risk assessment, we considered the most active exposure scenario inhaling a mixture of volatile pesticides from contaminated soil and groundwater. The potential interactions between pesticides in 15 binary mixtures were investigated using the MTT assay in SH-SY5Y cells. Our findings showed that 60% of the binary mixtures elicited synergism (in at least one concentration), 27% displayed antagonism, and 13% showed additive effects in SH-SY5Y cells. Combining human safety data with in vitro interaction data indicated that adults and toddlers were at the highest risk when considering industrial and commercial land use, respectively, compared to other subpopulations. Incorporating interaction data into the risk assessment either increased the risk by up to 20% or decreased the risk by 2%, depending on the mixture. Our results demonstrate the predominant synergistic interactions, even at low concentrations, altered risk characterization at the complex operating site. Most concerning, organochlorine pesticides with the same mechanism of action did not follow dose additivity when evaluated by SH-SY5Y cell lines. Based on our observations, we caution that current HI methods based on additivity assumptions may underestimate the risk of organochlorine mixtures.
Collapse
Affiliation(s)
- M Alehashem
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada
| | - R Peters
- Federated Co-operatives Limited, Saskatoon, SK, S7K 0H2, Canada
| | - H O Fajana
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; Department of Soil Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - S Eslamizad
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - N Hogan
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; Department of Animal Science, University of Saskatchewan, Saskatoon, SK, Canada
| | - M Hecker
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada
| | - S D Siciliano
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; Department of Soil Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada.
| |
Collapse
|
2
|
Gasque-Belz L, Raes K, Park B, Colville C, Siciliano S, Hogan N, Weber L, Campbell P, Peters R, Hanson M, Hecker M. Hazard assessment of complex legacy-contaminated groundwater mixtures using a novel approach method in adult fathead minnows. J Hazard Mater 2024; 465:133299. [PMID: 38141307 DOI: 10.1016/j.jhazmat.2023.133299] [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: 10/30/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 12/25/2023]
Abstract
Traditional risk assessment methods face challenges in the determination of drivers of toxicity for complex mixtures such as those present at legacy-contaminated sites. Bioassay-driven analysis across several levels of biological organization represents an approach to address these obstacles. This study aimed to apply a novel transcriptomics tool, the EcoToxChip, to characterize the effects of complex mixtures of contaminants in adult fathead minnows (FHMs) and to compare molecular response patterns to higher-level biological responses. Adult FHMs were exposed for 4 and 21 days to groundwater mixtures collected from a legacy-contaminated site. Adult FHM showed significant induction of micronuclei in erythrocytes, decrease in reproductive capacities, and some abnormal appearance of liver histology. Parallel EcoToxChip analyses showed a high proportion of upregulated genes and a few downregulated genes characteristic of compensatory responses. The three most enriched pathways included thyroid endocrine processes, transcription and translation cellular processes, and xenobiotics and reactive oxygen species metabolism. Several of the most differentially regulated genes involved in these biological pathways could be linked to the apical outcomes observed in FHMs. We concluded that molecular responses as determined by EcoToxChip analysis show promise for informing of apical outcomes and could support risk assessments of complex contaminated sites.
Collapse
Affiliation(s)
- Laura Gasque-Belz
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Katherine Raes
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Bradley Park
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Carly Colville
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Steven Siciliano
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Natacha Hogan
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Lynn Weber
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | | | - Rachel Peters
- Federated Co-operatives Limited, Saskatoon, SK, Canada
| | - Mark Hanson
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Markus Hecker
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada; School of the Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, Canada.
| |
Collapse
|
3
|
Carra S, Tanno LK, Peters R, Eigenmann P. Editorial comment on "Food-induced anaphylaxis during infancy is associated with later sleeping and eating disorders". Pediatr Allergy Immunol 2024; 35:e14090. [PMID: 38404068 DOI: 10.1111/pai.14090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/27/2024]
Affiliation(s)
- Sophie Carra
- University Hospital of Montpellier, Montpellier, France
| | - Luciana Kase Tanno
- University Hospital of Montpellier, Montpellier, France
- Desbrest Institute of Epidemiology and Public Health, University of Montpellier - INSERM, Montpellier, France
- WHO Collaborating Centre on Scientific Classification Support, Montpellier, France
| | - Rachel Peters
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of pediatrics, The University of Melbourne, Parkville, Victoria, Australia
| | - Philippe Eigenmann
- Pediatric Allergy Unit, Department of Pediatrics, Gynecology and Obstetrics, University Hospitals of Geneva, Geneva, Switzerland
| |
Collapse
|
4
|
Riggioni C, Ricci C, Moya B, Wong D, van Goor E, Bartha I, Buyuktiryaki B, Giovannini M, Jayasinghe S, Jaumdally H, Marques-Mejias A, Piletta-Zanin A, Berbenyuk A, Andreeva M, Levina D, Iakovleva E, Roberts G, Chu D, Peters R, du Toit G, Skypala I, Santos AF. Systematic review and meta-analyses on the accuracy of diagnostic tests for IgE-mediated food allergy. Allergy 2024; 79:324-352. [PMID: 38009299 DOI: 10.1111/all.15939] [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: 07/11/2023] [Revised: 10/19/2023] [Accepted: 10/22/2023] [Indexed: 11/28/2023]
Abstract
The European Academy of Allergy and Clinical Immunology (EAACI) is updating the Guidelines on Food Allergy Diagnosis. We aimed to undertake a systematic review of the literature with meta-analyses to assess the accuracy of diagnostic tests for IgE-mediated food allergy. We searched three databases (Cochrane CENTRAL (Trials), MEDLINE (OVID) and Embase (OVID)) for diagnostic test accuracy studies published between 1 October 2012 and 30 June 2021 according to a previously published protocol (CRD42021259186). We independently screened abstracts, extracted data from full texts and assessed risk of bias with QUADRAS 2 tool in duplicate. Meta-analyses were undertaken for food-test combinations for which three or more studies were available. A total of 149 studies comprising 24,489 patients met the inclusion criteria and they were generally heterogeneous. 60.4% of studies were in children ≤12 years of age, 54.3% were undertaken in Europe, ≥95% were conducted in a specialized paediatric or allergy clinical setting and all included oral food challenge in at least a percentage of enrolled patients, in 21.5% double-blind placebo-controlled food challenges. Skin prick test (SPT) with fresh cow's milk and raw egg had high sensitivity (90% and 94%) for milk and cooked egg allergies. Specific IgE (sIgE) to individual components had high specificity: Ara h 2-sIgE had 92%, Cor a 14-sIgE 95%, Ana o 3-sIgE 94%, casein-sIgE 93%, ovomucoid-sIgE 92/91% for the diagnosis of peanut, hazelnut, cashew, cow's milk and raw/cooked egg allergies, respectively. The basophil activation test (BAT) was highly specific for the diagnosis of peanut (90%) and sesame (93%) allergies. In conclusion, SPT and specific IgE to extracts had high sensitivity whereas specific IgE to components and BAT had high specificity to support the diagnosis of individual food allergies.
Collapse
Affiliation(s)
- Carmen Riggioni
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
- Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore City, Singapore
| | - Cristian Ricci
- Africa Unit for Transdisciplinary Health Research (AUTHeR), North-WEst University, Potchefstroom, South Africa
| | - Beatriz Moya
- Department of Allergy, Hospital Universitario 12 de Octubre, Madrid, Spain
- Instituto de Investigación Sanitaria, Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Dominic Wong
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Evi van Goor
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Elkerliek Hospital, Helmond, The Netherlands
| | - Irene Bartha
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, UK
| | - Betul Buyuktiryaki
- Division of Pediatric Allergy, Department of Pediatrics, Koc University School of Medicine, Istanbul, Turkey
| | - Mattia Giovannini
- Allergy Unit, Meyer Children's Hospital IRCCS, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Sashini Jayasinghe
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Hannah Jaumdally
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Andreina Marques-Mejias
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, UK
| | - Alexandre Piletta-Zanin
- Division of Pediatric Specialties, Department of Women, Children and Adolescents, Geneva University Hospitals, Geneva, Switzerland
| | - Anna Berbenyuk
- Department of Paediatrics and Paediatric Infectious Diseases, Institute of Child's Health, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Margarita Andreeva
- Department of Paediatrics and Paediatric Infectious Diseases, Institute of Child's Health, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Daria Levina
- Department of Paediatrics and Paediatric Infectious Diseases, Institute of Child's Health, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Ekaterina Iakovleva
- Department of Paediatrics and Paediatric Infectious Diseases, Institute of Child's Health, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Graham Roberts
- Clinical and Experimental Sciences and Human Development in Health, Faculty of Medicine, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Newport, UK
| | - Derek Chu
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Rachel Peters
- Murdoch Children's Research Institute Melbourne, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - George du Toit
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, UK
| | - Isabel Skypala
- National Heart & Lung Institute, Imperial College London, London, UK
- Department of Allergy & Clinical Immunology, Royal Brompton & Harefield NHS Foundation Trust, London, UK
| | - Alexandra F Santos
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, UK
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
| |
Collapse
|
5
|
Gasque-Belz L, Colville C, Kurukulasuriya S, Siciliano SD, Hogan N, Weber L, Campbell P, Peters R, Hanson M, Hecker M. Characterization of molecular and apical effects of legacy-contaminated groundwater on early life stages of fathead minnows. Aquat Toxicol 2023; 264:106734. [PMID: 37913685 DOI: 10.1016/j.aquatox.2023.106734] [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: 07/18/2023] [Revised: 10/11/2023] [Accepted: 10/19/2023] [Indexed: 11/03/2023]
Abstract
Mechanistic toxicology approaches represent a promising alternative to traditional live animal testing; however, the often-noted uncertainties concerning the linkages between effects observed at molecular and apical levels curtails the adoption of such approaches. The objective of this study was to apply a novel transcriptomics tool, EcoToxChips, to characterize the effects of complex mixtures of contaminants in fish and to compare molecular response patterns to higher-level biological responses including swimming behavior, deformities, and mortality. Fathead minnow (FHM) embryos were exposed for seven days to increasing concentrations of groundwater collected from moderate (MIAZ) and high (HIAZ) industrial activity zones of a legacy contaminated site. There was a concentration-dependent disruption of photo-dependent swimming responses associated with avoidance behavior patterns and spinal deformities (HIAZ and MIAZ), and an induction of pericardial edema and mortality (HIAZ-10%). Parallel EcoToxChip analyses showed a shift from a majority of upregulated genes at lower concentrations to a majority of downregulated genes at higher concentrations for both treatment conditions. Many of the significantly differentially regulated genes were involved in biological pathways including induction of oxidative stress, activating of several metabolic processes and growth, cell death, and inhibition of signal transduction signaling processes. Several contaminants present in the groundwater mixtures could have contributed to an exceedance of antioxidant system capacities that possibly led to the deformities, altered swimming behaviours, and mortality observed in FHMs. Therefore, molecular response patterns could be linked to apical outcomes observed in this study. Overall, the results observed in this study demonstrate that transcriptomics approaches such as the EcoToxChip system could be supportive of risk assessment of complex contaminated sites.
Collapse
Affiliation(s)
- Laura Gasque-Belz
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Carly Colville
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | | | | | - Natacha Hogan
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Lynn Weber
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | | | - Rachel Peters
- Federated Co-operatives Limited, Saskatoon, SK, Canada
| | - Mark Hanson
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Markus Hecker
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada; School of the Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, Canada.
| |
Collapse
|
6
|
Bahlmann LC, Xue C, Chin AA, Skirzynska A, Lu J, Thériault B, Uehling D, Yerofeyeva Y, Peters R, Liu K, Chen J, Martel AL, Yaffe M, Al-Awar R, Goswami RS, Ylanko J, Andrews DW, Kuruvilla J, Laister RC, Shoichet MS. Targeting tumour-associated macrophages in hodgkin lymphoma using engineered extracellular matrix-mimicking cryogels. Biomaterials 2023; 297:122121. [PMID: 37075613 DOI: 10.1016/j.biomaterials.2023.122121] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/08/2023] [Accepted: 04/06/2023] [Indexed: 04/21/2023]
Abstract
Tumour-associated macrophages are linked with poor prognosis and resistance to therapy in Hodgkin lymphoma; however, there are no suitable preclinical models to identify macrophage-targeting therapeutics. We used primary human tumours to guide the development of a mimetic cryogel, wherein Hodgkin (but not Non-Hodgkin) lymphoma cells promoted primary human macrophage invasion. In an invasion inhibitor screen, we identified five drug hits that significantly reduced tumour-associated macrophage invasion: marimastat, batimastat, AS1517499, ruxolitinib, and PD-169316. Importantly, ruxolitinib has demonstrated recent success in Hodgkin lymphoma clinical trials. Both ruxolitinib and PD-169316 (a p38 mitogen-activated protein kinase (p38 MAPK) inhibitor) decreased the percent of M2-like macrophages; however, only PD-169316 enhanced the percentage of M1-like macrophages. We validated p38 MAPK as an anti-invasion drug target with five additional drugs using a high-content imaging platform. With our biomimetic cryogel, we modeled macrophage invasion in Hodgkin lymphoma and then used it for target discovery and drug screening, ultimately identifying potential future therapeutics.
Collapse
Affiliation(s)
- Laura C Bahlmann
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
| | - Chang Xue
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
| | - Allysia A Chin
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
| | - Arianna Skirzynska
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
| | - Joy Lu
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
| | - Brigitte Thériault
- Drug Discovery Program, Ontario Institute of Cancer Research, 661 University Ave Suite 510, Toronto, Ontario, M5G 0A3, Canada
| | - David Uehling
- Drug Discovery Program, Ontario Institute of Cancer Research, 661 University Ave Suite 510, Toronto, Ontario, M5G 0A3, Canada
| | - Yulia Yerofeyeva
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Rachel Peters
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Kela Liu
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Jianan Chen
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada
| | - Anne L Martel
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada; Physical Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Martin Yaffe
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada; Physical Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Rima Al-Awar
- Drug Discovery Program, Ontario Institute of Cancer Research, 661 University Ave Suite 510, Toronto, Ontario, M5G 0A3, Canada; Department of Pharmacology & Toxicology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
| | - Rashmi S Goswami
- Biological Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada; Department of Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada
| | - Jarkko Ylanko
- Biological Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - David W Andrews
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada; Biological Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada; Department of Biochemistry, University of Toronto, 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada
| | - John Kuruvilla
- Princess Margaret Cancer Centre, University Health Network, 610 University Ave, Toronto, Ontario, M5G 2C1, Canada
| | - Rob C Laister
- Princess Margaret Cancer Centre, University Health Network, 610 University Ave, Toronto, Ontario, M5G 2C1, Canada.
| | - Molly S Shoichet
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
| |
Collapse
|
7
|
Kootar S, Huque MH, Eramudugolla R, Rizzuto D, Carlson MC, Odden MC, Lopez OL, Qiu C, Fratiglioni L, Han SD, Bennett DA, Peters R, Anstey KJ. Validation of the CogDrisk Instrument as Predictive of Dementia in Four General Community-Dwelling Populations. J Prev Alzheimers Dis 2023; 10:478-487. [PMID: 37357288 PMCID: PMC10449369 DOI: 10.14283/jpad.2023.38] [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] [Indexed: 08/26/2023]
Abstract
BACKGROUND Lack of external validation of dementia risk tools is a major limitation for generalizability and translatability of prediction scores in clinical practice and research. OBJECTIVES We aimed to validate a new dementia prediction risk tool called CogDrisk and a version, CogDrisk-AD for predicting Alzheimer's disease (AD) using cohort studies. DESIGN, SETTING, PARTICIPANTS AND MEASUREMENTS Four cohort studies were identified that included majority of the dementia risk factors from the CogDrisk tool. Participants who were free of dementia at baseline were included. The predictors were component variables in the CogDrisk tool that include self-reported demographics, medical risk factors and lifestyle habits. Risk scores for Any Dementia and AD were computed and Area Under the Curve (AUC) was assessed. To examine modifiable risk factors for dementia, the CogDrisk tool was tested by excluding age and sex estimates from the model. RESULTS The performance of the tool varied between studies. The overall AUC and 95% CI for predicting dementia was 0.77 (0.57, 0.97) for the Swedish National study on Aging and Care in Kungsholmen, 0.76 (0.70, 0.83) for the Health and Retirement Study - Aging, Demographics and Memory Study, 0.70 (0.67,0.72) for the Cardiovascular Health Study Cognition Study, and 0.66 (0.62,0.70) for the Rush Memory and Aging Project. CONCLUSIONS The CogDrisk and CogDrisk-AD performed well in the four studies. Overall, this tool can be used to assess individualized risk factors of dementia and AD in various population settings.
Collapse
Affiliation(s)
- S Kootar
- Scientia Professor Kaarin J. Anstey, School of Psychology, University of New South Wales, Kensington NSW 2052, Australia, Telephone no: +61 9399 1061,
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Boamah B, Barnsley S, Finch L, Briens J, Siciliano S, Hogan N, Hecker M, Hanson M, Campbell P, Peters R, Manek A, Al-Dissi AN, Weber L. Target Organ Toxicity in Rats After Subchronic Oral Exposure to Soil Extracts Containing a Complex Mixture of Contaminants. Arch Environ Contam Toxicol 2023; 84:85-100. [PMID: 36577861 DOI: 10.1007/s00244-022-00972-1] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Complex mixtures of unknown contaminants present a challenge to identify toxicological risks without using large numbers of animals and labor-intensive screens of all organs. This study examined soil extracts from a legacy-contaminated pesticide packaging and blending site. HepG2 cytotoxicity was used as an initial screen of 18 soil samples; then, three extracts (A, B and C) from different locations at the study site were used for testing in animals. The first two extracts were identified as the most toxic in vitro, and the latter extract obtained from a location further from these two toxic sampling sites. Then, target organ toxicities were identified following biweekly oral gavage for one month of three soil extracts (0.1% in polyethylene glycol or PEG) compared to vehicle control in male Sprague-Dawley rats (n = 9-10/group). Exposure to extract A significantly increased neutrophils and lymphocytes compared to control. In contrast, all extracts increased plasma α-2 macroglobulin and caused mild-to-moderate lymphocytic proliferation within the spleen white pulp, all indicative of inflammation. Rats exposed to all soil extracts exhibited acute tubular necrosis. Cholinesterase activity was significantly reduced in plasma, but not brain, after exposure to extract A compared to control. Increased hepatic ethoxyresorufin-o-deethylase activity compared to control was observed following exposure to extracts A and B. Exposure to soil extract C in rats showed a prolonged QTc interval in electrocardiography as well as increased brain lipid peroxidation. Candidate contaminants are organochlorine, organophosphate/carbamate pesticides or metabolites. Overall, HepG2 cytotoxicity did not successfully predict the neurotoxicity and cardiotoxicity observed with extract C but was more successful with suspected hydrocarbon toxicities in extracts A and B. Caution should be taken when extrapolating the observation of no effects from in vitro cell culture to in vivo toxicity, and better cell culture lines or assays should be explored.
Collapse
Affiliation(s)
- B Boamah
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - S Barnsley
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - L Finch
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - J Briens
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - S Siciliano
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - N Hogan
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - M Hecker
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - M Hanson
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - P Campbell
- Wood Environment & Infrastructure Solutions, Winnipeg, MB, Canada
| | - R Peters
- Federated Co-Operatives Limited, Saskatoon, SK, Canada
| | - A Manek
- College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - A N Al-Dissi
- Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - L Weber
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada.
| |
Collapse
|
9
|
Van den Broeck L, Schwartz MF, Krishnamoorthy S, Tahir MA, Spurney RJ, Madison I, Melvin C, Gobble M, Nguyen T, Peters R, Hunt A, Muhammad A, Li B, Stuiver M, Horn T, Sozzani R. Establishing a reproducible approach to study cellular functions of plant cells with 3D bioprinting. Sci Adv 2022; 8:eabp9906. [PMID: 36240264 PMCID: PMC9565790 DOI: 10.1126/sciadv.abp9906] [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] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 08/25/2022] [Indexed: 06/16/2023]
Abstract
Capturing cell-to-cell signals in a three-dimensional (3D) environment is key to studying cellular functions. A major challenge in the current culturing methods is the lack of accurately capturing multicellular 3D environments. In this study, we established a framework for 3D bioprinting plant cells to study cell viability, cell division, and cell identity. We established long-term cell viability for bioprinted Arabidopsis and soybean cells. To analyze the generated large image datasets, we developed a high-throughput image analysis pipeline. Furthermore, we showed the cell cycle reentry of bioprinted cells for which the timing coincides with the induction of core cell cycle genes and regeneration-related genes, ultimately leading to microcallus formation. Last, the identity of bioprinted Arabidopsis root cells expressing endodermal markers was maintained for longer periods. The framework established here paves the way for a general use of 3D bioprinting for studying cellular reprogramming and cell cycle reentry toward tissue regeneration.
Collapse
Affiliation(s)
- Lisa Van den Broeck
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Michael F. Schwartz
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Srikumar Krishnamoorthy
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Maimouna Abderamane Tahir
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
- Mechanical and Aerospace Engineering Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Ryan J. Spurney
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
- Electrical and Computer Engineering Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Imani Madison
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Charles Melvin
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Mariah Gobble
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Thomas Nguyen
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Rachel Peters
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Aitch Hunt
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Atiyya Muhammad
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Baochun Li
- Innovation Center of BASF, Morrisville, NC 27560, USA
| | - Maarten Stuiver
- BASF Innovation Center, Technologiepark 101, 9052 Zwijnaarde, Belgium
| | - Timothy Horn
- Mechanical and Aerospace Engineering Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Rosangela Sozzani
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| |
Collapse
|
10
|
Koplin J, Soriano V, Netting M, Peters R. Infant feeding patterns before and after changes to food allergy prevention guidelines in Australia. Med J Aust 2022; 217:210-211. [PMID: 35772721 PMCID: PMC9540109 DOI: 10.5694/mja2.51627] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/15/2022] [Accepted: 03/23/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Jennifer Koplin
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute Melbourne VIC
- The University of Melbourne Melbourne VIC
| | - Victoria Soriano
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute Melbourne VIC
- The University of Melbourne Melbourne VIC
| | - Merryn Netting
- South Australian Health and Medical Research Institute Adelaide SA
- The University of Adelaide Adelaide SA
| | - Rachel Peters
- The University of Melbourne Melbourne VIC
- Murdoch Children’s Research Institute Melbourne VIC
| |
Collapse
|
11
|
Li M, Konteatis Z, Nagaraja N, Chen Y, Zhou S, Ma G, Gross S, Marjon K, Hyer ML, Mandley E, Lein M, Padyana AK, Jin L, Tong S, Peters R, Murtie J, Travins J, Medeiros M, Liu P, Frank V, Judd ET, Biller SA, Marks KM, Sui Z, Reznik SK. Leveraging Structure-Based Drug Design to Identify Next-Generation MAT2A Inhibitors, Including Brain-Penetrant and Peripherally Efficacious Leads. J Med Chem 2022; 65:4600-4615. [PMID: 35293760 DOI: 10.1021/acs.jmedchem.1c01595] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Inhibition of the S-adenosyl methionine (SAM)-producing metabolic enzyme, methionine adenosyltransferase 2A (MAT2A), has received significant interest in the field of medicinal chemistry due to its implication as a synthetic lethal target in cancers with the deletion of the methylthioadenosine phosphorylase (MTAP) gene. Here, we report the identification of novel MAT2A inhibitors with distinct in vivo properties that may enhance their utility in treating patients. Following a high-throughput screening, we successfully applied the structure-based design lessons from our first-in-class MAT2A inhibitor, AG-270, to rapidly redesign and optimize our initial hit into two new lead compounds: a brain-penetrant compound, AGI-41998, and a potent, but limited brain-penetrant compound, AGI-43192. We hope that the identification and first disclosure of brain-penetrant MAT2A inhibitors will create new opportunities to explore the potential therapeutic effects of SAM modulation in the central nervous system (CNS).
Collapse
Affiliation(s)
- Mingzong Li
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Zenon Konteatis
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Nelamangala Nagaraja
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Yue Chen
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Shubao Zhou
- PharmaResources Co., Ltd., 509 Renqing Road, Pudong New Area, Shanghai 201201, China
| | - Guangning Ma
- PharmaResources Co., Ltd., 509 Renqing Road, Pudong New Area, Shanghai 201201, China
| | - Stefan Gross
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Katya Marjon
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Marc L Hyer
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Everton Mandley
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Max Lein
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Anil K Padyana
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Lei Jin
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Shuilong Tong
- Viva Biotech, Ltd., 334 Aidisheng Road, Zhangjiang High-Tech Park, Shanghai 201203, China
| | - Rachel Peters
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Joshua Murtie
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Jeremy Travins
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Matthew Medeiros
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Peng Liu
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Victoria Frank
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Evan T Judd
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Scott A Biller
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Kevin M Marks
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Zhihua Sui
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| | - Samuel K Reznik
- Agios Pharmaceuticals, Inc., 88 Sidney Street, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
12
|
Dang TD, Peters R, Neeland MR, Brettig T, Green H, McWilliam V, Tang MLK, Dharmage S, Ponsonby AL, Koplin J, Perrett KP. Ana o 3 sIgE testing increases the accuracy of cashew allergy diagnosis using a two-step model. Pediatr Allergy Immunol 2022; 33:e13705. [PMID: 34821421 DOI: 10.1111/pai.13705] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 10/20/2021] [Accepted: 11/05/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Measurement of cashew-specific IgE (sIgE) is often used to confirm sensitization but does not reliably diagnose clinical allergy. Ana o 3 is the dominant cashew allergen detected in 75-100% of patients with cashew allergy but not currently used in clinical practice. OBJECTIVES To determine if component-resolved diagnostics using specific IgE to the 2 S albumin from cashew, Ana o 3, improves the accuracy of diagnosing cashew allergy, thereby circumventing the need for an oral food challenge (OFC) in some patients. METHODS A population-based sample of 5276 children was recruited at age 1 year and followed up at age 6 years. Children with positive cashew skin prick test at age 6 underwent an OFC to clarify allergy status. Forty-seven children (mean age 5.02 ± 0.2) (33 cashew-allergic and 14 cashew-tolerant) had cashew sIgE and Ana o 3 sIgE quantified by ImmunoCAP System FEIA. RESULTS A cutoff of >0.32 kUA/L for Ana o 3 sIgE provided 95% specificity and 90% sensitivity and correctly identified 90% of clinical cashew allergy. At the same specificity, the sensitivity for cashew sIgE (>8.5 kUA/L) was only 26%. Sequential measurement of cashew sIgE followed by Ana o 3 sIgE diagnosed 90% of children with cashew allergy without the need for an OFC. CONCLUSION Ana o 3 sIgE testing provides higher diagnostic accuracy than cashew sIgE. Sequential measurement of cashew sIgE followed by Ana o 3 removed the need for a food challenge from 66% down to 12.8% (5-fold) of children compared with cashew sIgE testing alone.
Collapse
Affiliation(s)
- Thanh D Dang
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia
| | - Rachel Peters
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia
| | - Melanie R Neeland
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Tim Brettig
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia
| | - Hayden Green
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia
| | - Vicki McWilliam
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Mimi L K Tang
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Shyamali Dharmage
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia.,The Allergy and Lung Health Unit for Epidemiology and Biostatistics, University of Melbourne, Melbourne, Victoria, Australia
| | - Anne-Louise Ponsonby
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia.,The Allergy and Lung Health Unit for Epidemiology and Biostatistics, University of Melbourne, Melbourne, Victoria, Australia.,The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jennifer Koplin
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia
| | - Kirsten P Perrett
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Food & Allergy Research, Melbourne, Victoria, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Victoria, Australia
| | | |
Collapse
|
13
|
Kanwar N, Balde Z, Nair R, Dawe M, Chen S, Maganti M, Atenafu EG, Manolescu S, Wei C, Mao A, Fu F, Wang D, Cheung A, Yerofeyeva Y, Peters R, Liu K, Desmedt C, Sotiriou C, Szekely B, Kulka J, McKee TD, Hirano N, Bartlett JM, Yaffe MJ, Bedard PL, McCready D, Done SJ. Heterogeneity of Circulating Tumor Cell-Associated Genomic Gains in Breast Cancer and Its Association with the Host Immune Response. Cancer Res 2021; 81:6196-6206. [PMID: 34711609 PMCID: PMC9397625 DOI: 10.1158/0008-5472.can-21-1079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/10/2021] [Accepted: 10/25/2021] [Indexed: 01/07/2023]
Abstract
Tumor cells that preferentially enter circulation include the precursors of metastatic cancer. Previously, we characterized circulating tumor cells (CTC) from patients with breast cancer and identified a signature of genomic regions with recurrent copy-number gains. Through FISH, we now show that these CTC-associated regions are detected within the matched untreated primary tumors of these patients (21% to 69%, median 55.5%, n = 19). Furthermore, they are more prevalent in the metastases of patients who died from breast cancer after multiple rounds of treatment (70% to 100%, median 93%, samples n = 41). Diversity indices revealed that higher spatial heterogeneity for these regions within primary tumors is associated with increased dissemination and metastasis. An identified subclone with multiple regions gained (MRG clone) was enriched in a posttreatment primary breast carcinoma as well as multiple metastatic tumors and local breast recurrences obtained at autopsy, indicative of a distinct early subclone with the capability to resist multiple lines of treatment and eventually cause death. In addition, multiplex immunofluorescence revealed that tumor heterogeneity is significantly associated with the degree of infiltration of B lymphocytes in triple-negative breast cancer, a subtype with a large immune component. Collectively, these data reveal the functional potential of genetic subclones that comprise heterogeneous primary breast carcinomas and are selected for in CTCs and posttreatment breast cancer metastases. In addition, they uncover a relationship between tumor heterogeneity and host immune response in the tumor microenvironment. SIGNIFICANCE: As breast cancers progress, they become more heterogeneous for multiple regions amplified in circulating tumor cells, and intratumoral spatial heterogeneity is associated with the immune landscape.
Collapse
Affiliation(s)
- Nisha Kanwar
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Zaldy Balde
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Ranju Nair
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Melanie Dawe
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Shiyi Chen
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Canada
| | - Manjula Maganti
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Eshetu G. Atenafu
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Sabrina Manolescu
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Carrie Wei
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Amanda Mao
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Fred Fu
- STTARR Innovation Centre, University Health Network, Toronto, Canada
| | - Dan Wang
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, Toronto, Canada
| | - Alison Cheung
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, Toronto, Canada
| | - Yulia Yerofeyeva
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, Toronto, Canada
| | - Rachel Peters
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, Toronto, Canada
| | - Kela Liu
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, Toronto, Canada
| | - Christine Desmedt
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Christos Sotiriou
- Laboratory for Translational Breast Cancer Research, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Borbala Szekely
- 2nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Janina Kulka
- 2nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Trevor D. McKee
- STTARR Innovation Centre, University Health Network, Toronto, Canada
| | - Naoto Hirano
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada.,Department of Immunology, University of Toronto, Toronto, Canada
| | - John M.S. Bartlett
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.,Ontario Institute for Cancer Research, Toronto, Canada
| | - Martin J. Yaffe
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, Toronto, Canada.,Ontario Institute for Cancer Research, Toronto, Canada
| | - Philippe L. Bedard
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - David McCready
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Susan J. Done
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, Canada.,Laboratory Medicine Program, University Health Network, Toronto, Canada.,Corresponding Author: Susan J. Done, Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Toronto, Ontario M5G 2M9, Canada. Phone: 416-340-4800, ext. 5573; E-mail:
| |
Collapse
|
14
|
Schluep M, Endeman H, Gravesteijn BY, Kuijs C, Blans MJ, van den Bogaard B, Van Gemert AWMMK, Hukshorn CJ, van der Meer BJM, Knook AHM, van Melsen T, Peters R, Simons KS, Spijkers G, Vermeijden JW, Wils EJ, Stolker RJ, Hoeks SE. In-depth assessment of health-related quality of life after in-hospital cardiac arrest. J Crit Care 2021; 68:22-30. [PMID: 34856490 DOI: 10.1016/j.jcrc.2021.11.008] [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: 07/28/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Evidence on physical and psychological well-being of in-hospital cardiac arrest (IHCA) survivors is scarce. The aim of this study is to describe long-term health-related quality of life (HRQoL), functional independence and psychological distress 3 and 12 months post-IHCA. METHODS A multicenter prospective cohort study in 25 hospitals between January 2017 - May 2018. Adult IHCA survivors were included. HRQoL (EQ-5D-5L, SF-12), psychological distress (HADS, CSI) and functional independence (mRS) were assessed at 3 and 12 months post-IHCA. RESULTS At 3-month follow-up 136 of 212 survivors responded to the questionnaire and at 12 months 110 of 198 responded. The median (IQR) EQ-utility Index score was 0.77 (0.65-0.87) at 3 months and 0.81 (0.70-0.91) at 12 months. At 3 months, patients reported a median SF-12 (IQR) physical component scale (PCS) of 38.9 (32.8-46.5) and mental component scale (MCS) of 43.5 (34.0-39.7) and at 12 months a PCS of 43.1 (34.6-52.3) and MCS 46.9 (38.5-54.5). DISCUSSION Using various tools most IHCA survivors report an acceptable HRQoL and a substantial part experiences lower HRQoL compared to population norms. Our data suggest that younger (male) patients and those with poor functional status prior to admission are at highest risk of impaired HRQoL.
Collapse
Affiliation(s)
- M Schluep
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - H Endeman
- Department of Intensive Care Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - B Y Gravesteijn
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - C Kuijs
- Department of Intensive Care Medicine, Maasstad Hospital, Rotterdam, the Netherlands; Resuscitation Committee, Maasstad Hospital, Rotterdam, the Netherlands
| | - M J Blans
- Department of Intensive Care Medicine, Rijnstate Hospital, Arnhem, the Netherlands
| | - B van den Bogaard
- Department of Intensive Care Medicine, OLVG, Amsterdam, the Netherlands
| | | | - C J Hukshorn
- Department of Intensive Care Medicine, Isala Hospital, Zwolle, the Netherlands
| | | | - A H M Knook
- Department of Intensive Care Medicine, Reinier de Graaf Gasthuis, Delft, the Netherlands
| | - T van Melsen
- Department of Intensive Care Medicine, Haaglanden Medisch Centrum, The Hague, the Netherlands
| | - R Peters
- Department of Cardiology, Tergooi Hospital, Hilversum, the Netherlands
| | - K S Simons
- Department of Intensive Care Medicine, Jeroen Bosch Hospital, 's Hertogenbosch, the Netherlands
| | - G Spijkers
- Department of Hospital Medicine, ZorgSaam Zeeuws-Vlaanderen, Terneuzen, the Netherlands
| | - J W Vermeijden
- Department of Intensive Care Medicine, Medisch Spectrum Twente, Enschede, the Netherlands
| | - E-J Wils
- Department of Intensive Care Medicine, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands
| | - R J Stolker
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - S E Hoeks
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| |
Collapse
|
15
|
Gosens I, Duistermaat E, Boere J, Fokkens P, Vidmar J, Löschner K, Delmaar C, Costa A, Peters R, Cassee F. Rat biodistribution of cerium dioxide and titanium dioxide nanomaterials after single and repeated inhalation exposure. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00398-2] [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: 11/30/2022]
|
16
|
Soriano V, Koplin J, Forrester M, Peters R, O'Hely M, Dharmage S, Wright R, Ranganathan S, Burgner D, Thompson K, Dwyer T, Vuillermin P, Ponsonby AL. 357Infant pacifier sanitization and risk of food allergy: the Barwon Infant Study. Int J Epidemiol 2021. [DOI: 10.1093/ije/dyab168.625] [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: 11/13/2022] Open
Abstract
Abstract
Background
Environmental microbial exposure and human gut microbiota play a role in development of the immune system and susceptibility to food allergy. Pacifier use has been inconsistently associated with allergy, but the association between sanitization and food allergy is unknown. We investigated the association between infant pacifier use, with a consideration of sanitization, and food allergy at age 1 in the Barwon Infant Study (BIS).
Methods
Questionnaire data were collected prospectively from pregnant mothers from the Barwon region of south-east Australia at baseline and at infant ages 1, 6, and 12 months. Pacifier sanitization was defined as the joint exposure of a pacifier and cleaning methods (antiseptic, mouth, tap water, boiling). Challenge-proven food allergy was determined at age 1.
Results
Any pacifier use at 6 months was associated with food allergy (aOR, 1.94; 95% CI, 1.04-3.61), but not at other ages. This overall association was driven by the joint exposure pacifier-antiseptic use (aOR, 5.90; 95% CI, 2.18-15.97) compared to no pacifier use. Among pacifier users, pacifier-antiseptic was still associated with food allergy (aOR, 3.88; 95% CI, 1.55-9.72) when compared to pacifier-no antiseptic use. Further, increased use of pacifier-antiseptic at 0, 1 or 2 interviews over the first 6 months was associated with higher food allergy risk (ptrend=0.005).
Conclusions
Joint exposure to antiseptics and pacifiers at 6 months increased the odds of food allergy, showing a trend with increased use over time.
Key messages
This is the first report of pacifiers used with antiseptic being positively associated with challenge-proven food allergy.
Collapse
Affiliation(s)
- Victoria Soriano
- Murdoch Children's Research Institute, Parkville, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - Jennifer Koplin
- Murdoch Children's Research Institute, Parkville, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - Mike Forrester
- School of Medicine, Deakin University, Geelong, Australia
- Children's Services, Barwon Health, Geelong, Australia
- St John of God Hospital, Geelong, Australia
| | - Rachel Peters
- Murdoch Children's Research Institute, Parkville, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - Martin O'Hely
- Murdoch Children's Research Institute, Parkville, Australia
- School of Medicine, Deakin University, Geelong, Australia
- Child Health Research Unit, Barwon Health, Geelong, Australia
| | - Shyamali Dharmage
- School of Population and Global Health, University of Melbourne, Parkville, Australia
| | - Rosemary Wright
- Research School of Population Health, Australian National University, Canberra, Australia
| | | | - David Burgner
- Murdoch Children's Research Institute, Parkville, Australia
| | | | - Terence Dwyer
- Murdoch Children's Research Institute, Parkville, Australia
| | - Peter Vuillermin
- Murdoch Children's Research Institute, Parkville, Australia
- School of Medicine, Deakin University, Geelong, Australia
- Children's Services, Barwon Health, Geelong, Australia
| | - Anne-Louise Ponsonby
- School of Population and Global Health, University of Melbourne, Parkville, Australia
- Neuroepidemiology Research Group, Florey Institute for Neuroscience and Mental Health, Parkville, Australia
| |
Collapse
|
17
|
Imran S, Neeland MR, Koplin J, Dharmage S, Tang MLK, Sawyer S, Dang T, McWilliam V, Peters R, Perrett KP, Novakovic B, Saffery R. Epigenetic programming underpins B-cell dysfunction in peanut and multi-food allergy. Clin Transl Immunology 2021; 10:e1324. [PMID: 34466226 PMCID: PMC8384135 DOI: 10.1002/cti2.1324] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/07/2021] [Accepted: 07/16/2021] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Rates of IgE-mediated food allergy (FA) have increased over the last few decades, and mounting evidence implicates disruption of epigenetic profiles in various immune cell types in FA development. Recent data implicate B-cell dysfunction in FA; however, few studies have examined epigenetic changes within these cells. METHODS We assessed epigenetic and transcriptomic profiles in purified B cells from adolescents with FA, comparing single-food-allergic (peanut only), multi-food-allergic (peanut and ≥1 other food) and non-allergic (control) individuals. Adolescents represent a phenotype of persistent and severe FA indicative of a common immune deviation. RESULTS We identified 144 differentially methylated probes (DMPs) and 116 differentially expressed genes (DEGs) that distinguish B cells of individuals with FA from controls, including differential methylation of the PM20D1 promoter previously associated with allergic disorders. Subgroup comparisons found 729 DMPs specific to either single-food- or multi-food-allergic individuals, suggesting epigenetic distinctions between allergy groups. This included two regions with increased methylation near three S100 genes in multi-food-allergic individuals. Ontology results of DEGs specific to multi-food-allergic individuals revealed enrichment of terms associated with myeloid cell activation. Motif enrichment analysis of promoters associated with DMPs and DEGs showed differential enrichment for motifs recognised by transcription factors regulating B- and T-cell development, B-cell lineage determination and TGF-β signalling pathway between the multi-food-allergic and single-food-allergic groups. CONCLUSION Our data highlight epigenetic changes in B cells associated with peanut allergy, distinguishing features of the epigenome between single-food- and multi-food-allergic individuals and revealing differential developmental pathways potentially underpinning these distinct phenotypes.
Collapse
Affiliation(s)
- Samira Imran
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
| | - Melanie R Neeland
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
| | - Jennifer Koplin
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
| | - Shyamali Dharmage
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
- Allergy and Lung Health UnitMelbourne School of Population and Global HealthUniversity of MelbourneCarltonVICAustralia
| | - Mimi LK Tang
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
- Department of Allergy and ImmunologyRoyal Children's HospitalMelbourneVICAustralia
| | - Susan Sawyer
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
- Centre for Adolescent HealthRoyal Children's HospitalMelbourneVICAustralia
| | - Thanh Dang
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
| | - Vicki McWilliam
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
- Department of Allergy and ImmunologyRoyal Children's HospitalMelbourneVICAustralia
| | - Rachel Peters
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
| | - Kirsten P Perrett
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
- Department of Allergy and ImmunologyRoyal Children's HospitalMelbourneVICAustralia
| | - Boris Novakovic
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
| | - Richard Saffery
- Murdoch Children’s Research Institute, and Department of PaediatricsUniversity of MelbourneRoyal Children's HospitalParkvilleVICAustralia
| |
Collapse
|
18
|
Navaratna S, Estcourt MJ, Burgess J, Waidyatillake N, Enoh E, Lowe AJ, Peters R, Koplin J, Dhamage SC, Lodge CJ. Childhood vaccination and allergy: A systematic review and meta-analysis. Allergy 2021; 76:2135-2152. [PMID: 33569761 DOI: 10.1111/all.14771] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND OBJECTIVE As the rise in prevalence of allergic diseases worldwide corresponds in time with increasing infant vaccination, it has been hypothesized that childhood vaccination may increase the risk of allergic disease. We aimed to synthesize the literature on the association between childhood vaccination and allergy. DESIGN We searched the electronic databases PubMed and EMBASE (January 1946-January 2018) using vaccination and allergy terms. METHODS Two authors selected papers according to the inclusion criteria. Pooled effects across studies were estimated using random-effects meta-analysis. Due to inadequate number of homogeneous publications on newer and underused vaccines, meta-analysis was limited to allergic outcomes following administration of (Bacillus Calmette-Guérin) BCG, measles or pertussis vaccination. The review was prospectively registered in the PROSPERO systematic review registry (NO: CRD42017071009). RESULTS A total of 35 publications based on cohort studies and 7 publications based on randomized controlled trials (RCTs) met the inclusion criteria. RCTs: From 2 studies, early vaccination with BCG vaccine was associated with a reduced risk of eczema (RR = 0.83; 95% CI = 0.73-0.93; I2 = 0%) but not food allergy or asthma. No association was found between pertussis vaccine and any allergic outcome based on a single RCT. COHORT STUDIES Childhood measles vaccination was associated with a reduced risk of eczema (RR = 0.65; 95% CI = 0.47-0.90, I2 = 0.0%), asthma (RR = 0.78; 95% CI = 0.62-0.98, I2 = 93.9%) and, with a similar, statistically non-significant reduction in sensitization (RR = 0.78; 95% CI = 0.61-1.01, I2 = 19.4%). CONCLUSIONS We found no evidence that childhood vaccination with commonly administered vaccines was associated with increased risk of later allergic disease. Our results from pooled analysis of both RCTs and cohort studies suggest that vaccination with BCG and measles vaccines were associated with a reduced risk of eczema.
Collapse
Affiliation(s)
- Samidi Navaratna
- Faculty of Medicine Department of Community Medicine University of Peradeniya Kandy Sri Lanka
| | - Marie J. Estcourt
- Wesfarmers Centre of Vaccines & Infectious Diseases Telethon Kids InstitutePerth Children's Hospital Nedlands Australia
| | - John Burgess
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
| | - Nilakshi Waidyatillake
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
| | - Elizabeth Enoh
- Reproductive Health Programme United Nations Population Fund (UNFPA) Yaounde Cameroon
| | - Adrian J. Lowe
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
| | - Rachel Peters
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Department of Paediatrics The University of Melbourne Parkville Vic. Australia
| | - Jennifer Koplin
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Department of Paediatrics The University of Melbourne Parkville Vic. Australia
| | - Shyamali C. Dhamage
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Centre for Food and Allergy Research (CFAR) Murdoch Children’s Research Institute Parkville Vic. Australia
| | - Caroline J. Lodge
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Centre for Food and Allergy Research (CFAR) Murdoch Children’s Research Institute Parkville Vic. Australia
| |
Collapse
|
19
|
Leung J, Ainsworth J, Peters R, Mehr S, Smart J, Rose E. Increased Rates of Peanut and Tree Nut Aspiration as a Possible Consequence of Allergy Prevention by Early Introduction. J Allergy Clin Immunol Pract 2021; 9:3140-3146.e2. [PMID: 33862267 DOI: 10.1016/j.jaip.2021.03.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Pediatric airway foreign bodies (FBs) are a surgical emergency, and peanuts and tree nuts (PN/TNs) can pose a significant aspiration risk in young children. In 2015, the Learning Early About Peanut allergy (LEAP) trial established that early introduction of peanuts in high-risk infants reduced the risk of developing a peanut allergy. Infant feeding guidelines were subsequently modified to actively encourage the introduction of allergenic foods for all infants. The impact of this shift in feeding advice on the incidence of PN/TN inhalation has not been previously studied. OBJECTIVE To determine the incidence of PN/TN inhalation presentations to a quaternary pediatric hospital between 2008 and 2018. METHODS A retrospective cohort study of children who were diagnosed with an airway FB by rigid bronchoscopy. RESULTS There were 200 cases of FB inhalation (35% PN/TN, 34% other foods, and 31% inorganic material). There was a rise in the total incidence of FB inhalation over the study period (incidence ratio rate [IRR], 1.09; P < .001). The rise was due to PN/TN (IRR, 1.16; P < .002) and other food inhalation (IRR, 1.12; P = .01), with no significant increase in inorganic FB aspiration (IRR, 1; P = .94). Between pre-LEAP (2008-2014) and post-LEAP (2015-2018) periods, there was a trebling, doubling, and no increase in the rate of PN/TN, other food, and inorganic FB inhalation, respectively. CONCLUSIONS Since the publication of the LEAP study, there has been a rise in PN/TN and other hard solid food inhalation at our institution. This study highlights the urgent need to engage the public to promote safe introduction of hard foods in young children.
Collapse
Affiliation(s)
- James Leung
- Paediatric Otolaryngology Head and Neck Surgery Unit, The Royal Children's Hospital, Parkville, Melbourne, VIC, Australia.
| | - John Ainsworth
- Paediatric Allergy and Immunology Unit, The Royal Children's Hospital, Parkville, Melbourne, VIC, Australia; Epworth Allergy Specialists & Centre for Paediatric Allergies, Epworth Hospital, Richmond, VIC, Australia
| | - Rachel Peters
- Murdoch Children's Research Institute, Parkville, Melbourne, VIC, Australia; Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Sam Mehr
- Paediatric Allergy and Immunology Unit, The Royal Children's Hospital, Parkville, Melbourne, VIC, Australia; Epworth Allergy Specialists & Centre for Paediatric Allergies, Epworth Hospital, Richmond, VIC, Australia; Murdoch Children's Research Institute, Parkville, Melbourne, VIC, Australia
| | - Joanne Smart
- Paediatric Allergy and Immunology Unit, The Royal Children's Hospital, Parkville, Melbourne, VIC, Australia; Epworth Allergy Specialists & Centre for Paediatric Allergies, Epworth Hospital, Richmond, VIC, Australia; Murdoch Children's Research Institute, Parkville, Melbourne, VIC, Australia
| | - Elizabeth Rose
- Paediatric Otolaryngology Head and Neck Surgery Unit, The Royal Children's Hospital, Parkville, Melbourne, VIC, Australia
| |
Collapse
|
20
|
Kalev P, Hyer ML, Gross S, Konteatis Z, Chen CC, Fletcher M, Lein M, Aguado-Fraile E, Frank V, Barnett A, Mandley E, Goldford J, Chen Y, Sellers K, Hayes S, Lizotte K, Quang P, Tuncay Y, Clasquin M, Peters R, Weier J, Simone E, Murtie J, Liu W, Nagaraja R, Dang L, Sui Z, Biller SA, Travins J, Marks KM, Marjon K. MAT2A Inhibition Blocks the Growth of MTAP-Deleted Cancer Cells by Reducing PRMT5-Dependent mRNA Splicing and Inducing DNA Damage. Cancer Cell 2021; 39:209-224.e11. [PMID: 33450196 DOI: 10.1016/j.ccell.2020.12.010] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 10/30/2020] [Accepted: 12/10/2020] [Indexed: 12/13/2022]
Abstract
The methylthioadenosine phosphorylase (MTAP) gene is located adjacent to the cyclin-dependent kinase inhibitor 2A (CDKN2A) tumor-suppressor gene and is co-deleted with CDKN2A in approximately 15% of all cancers. This co-deletion leads to aggressive tumors with poor prognosis that lack effective, molecularly targeted therapies. The metabolic enzyme methionine adenosyltransferase 2α (MAT2A) was identified as a synthetic lethal target in MTAP-deleted cancers. We report the characterization of potent MAT2A inhibitors that substantially reduce levels of S-adenosylmethionine (SAM) and demonstrate antiproliferative activity in MTAP-deleted cancer cells and tumors. Using RNA sequencing and proteomics, we demonstrate that MAT2A inhibition is mechanistically linked to reduced protein arginine methyltransferase 5 (PRMT5) activity and splicing perturbations. We further show that DNA damage and mitotic defects ensue upon MAT2A inhibition in HCT116 MTAP-/- cells, providing a rationale for combining the MAT2A clinical candidate AG-270 with antimitotic taxanes.
Collapse
Affiliation(s)
- Peter Kalev
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Marc L Hyer
- Pharmacology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Stefan Gross
- Biochemistry and Biophysics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Zenon Konteatis
- Chemistry, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Chi-Chao Chen
- Bioinformatics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Mark Fletcher
- Bioinformatics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Max Lein
- Drug Metabolism and Pharmacokinetics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Elia Aguado-Fraile
- Clinical Biomarkers, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Victoria Frank
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Amelia Barnett
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Everton Mandley
- Pharmacology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Joshua Goldford
- Cell Metabolism, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Yue Chen
- Drug Metabolism and Pharmacokinetics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Katie Sellers
- Cell Metabolism, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Sebastian Hayes
- Cell Metabolism, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Kate Lizotte
- Cell Metabolism, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Phong Quang
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Yesim Tuncay
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Michelle Clasquin
- Cell Metabolism, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Rachel Peters
- Toxicology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Jaclyn Weier
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Eric Simone
- Chemistry, Manufacturing and Control, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Joshua Murtie
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA; Pharmacology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Wei Liu
- Bioinformatics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Raj Nagaraja
- Drug Metabolism and Pharmacokinetics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Lenny Dang
- Biochemistry and Biophysics, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Zhihua Sui
- Chemistry, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Scott A Biller
- Chemistry, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Jeremy Travins
- Chemistry, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Kevin M Marks
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA
| | - Katya Marjon
- Biology, Agios Pharmaceuticals, Inc., Cambridge, MA 02139, USA.
| |
Collapse
|
21
|
Peters R, Harmer E, Boyde M. Uptake of Secondary Prevention in Patients With ACS and LVEF≤40%. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.373] [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: 10/20/2022]
|
22
|
Koivukangas MM, Hietikko E, Strandberg T, Keinänen-Kiukaanniemi S, Leskinen R, Peters R, Antikainen R. The Prevalence of Frailty Using Three Different Frailty Measurements in Two Finnish Cohorts Born Before and After the Second World War. J Nutr Health Aging 2021; 25:611-617. [PMID: 33949627 DOI: 10.1007/s12603-021-1586-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES To study the prevalence of frailty and its relationship to mortality in cohorts born before and after the Second World War using three different frailty measures. METHODS Cross-sectional data from two cohorts born in 1935 (n=593) and 1945 (n=714) were studied for frailty at the mean age of 70.7 (SD 1.8) years. Frailty was measured using the Frailty Phenotype (FP), the Frail Scale (FS) and the 74-item Frailty Index (FI>0.21 denoted frailty). Information on socioeconomic factors was obtained via a study questionnaire and the data on mortality were obtained from the Population Information System. RESULTS The prevalence of frailty by FI was more common in the older 1935 cohort than in the 1945 cohort (p<0.001). The percentage of robust subjects was higher in both sexes in the 1945 cohort using both FI and FS. After adjusting for sociodemographic factors, the difference in the prevalence of frailty between the cohorts remained significant in women only (OR 1.9 (95% CI 1.3-2.9), p=0.001). The FI classified people as frail more often (30.2% in the 1935 cohort and 17.5% in the 1945 cohort) than the FS (13.1% and 8.8%) or FP (1.8% and 1.6%). Low financial satisfaction was associated significantly with frailty in both sexes. Low level of education was associated with frailty in women and being unmarried or divorced in men. Frailty was associated to increased mortality using all frailty definitions in the 1935 cohort with a longer follow-up time. CONCLUSIONS Improved living conditions and health care may have resulted in the lower prevalence of frailty in the 1945 cohort. The present study further strengthens the association between frailty and mortality and poor economic status and frailty. Frailty definitions are in need of further study.
Collapse
Affiliation(s)
- M M Koivukangas
- Minna Koivukangas, Center for Life Course Health Research, Geriatrics, University of Oulu, PO Box 5000, 90014 University of Oulu, Finland. Tel: +358405916252. E-mail:
| | | | | | | | | | | | | |
Collapse
|
23
|
Mieras L, Singh M, Manglani P, Arif M, Banstola N, Pandey B, Budiawan T, Utami R, Wibowo T, Iswandi A, Peters R, van Brakel W. A single dose of rifampicin to prevent leprosy; quantitative analysis of impact on perception, attitudes and behaviour of persons affected, contacts and community members towards leprosy in India, Nepal and Indonesia. LEPROSY REV 2020. [DOI: 10.47276/lr.91.4.314] [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: 11/04/2022]
|
24
|
Mutsaers JHAM, Pool-Goudzwaard AL, Peters R, Koes BW, Verhagen AP. Recovery expectations of neck pain patients do not predict treatments outcome in manual therapy. Sci Rep 2020; 10:18518. [PMID: 33116233 PMCID: PMC7595084 DOI: 10.1038/s41598-020-74962-5] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 09/21/2020] [Indexed: 11/20/2022] Open
Abstract
Patient recovery expectations can predict treatment outcome. Little is known about the association of patient recovery expectations on treatment outcome in patients with neck pain consulting a manual therapist. This study evaluates the predictive value of recovery expectations in neck pain patients consulting manual therapists in the Netherlands. The primary outcome measure 'recovery' is defined as 'reduction in pain and perceived improvement'. A prospective cohort study a total of 1195 neck pain patients. Patients completed the Patient Expectancies List (PEL) at baseline (3 item questionnaire, score range from 3 to 12), functional status (NDI), the Global Perceived Effect (GPE) for recovery (7-points Likert scale) post treatment and pain scores (NRS) at baseline and post treatment. The relationship between recovery expectancy and recovery (dichotomized GPE scores) was assessed by logistic regression analysis. Patients generally reported high recovery expectations on all three questions of the PEL (mean sumscores ranging from 11.3 to 11.6). When adjusted for covariates the PEL sum-score did not predict recovery (explained variance was 0.10 for the total PEL). Separately, the first question of the PEL showed predictive potential (OR 3.7; 95%CI 0.19-73.74) for recovery, but failed to reach statistical significance. In this study patient recovery expectations did not predict treatment outcome. Variables predicting recovery were recurrence and duration of pain. The precise relationship between patient recovery expectations and outcome is complex and still inconclusive. Research on patient expectancy would benefit from more consistent use of theoretical expectancy and outcome models.
Collapse
Affiliation(s)
- J-H A M Mutsaers
- Institute for Master Education in Manual Therapy, SOMT, Amersfoort, The Netherlands.
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
- Avans Hogeschool, University of Applied Sciences, P.O. Box 90116, 4800 RA, Breda, The Netherlands.
| | - A L Pool-Goudzwaard
- Institute for Master Education in Manual Therapy, SOMT, Amersfoort, The Netherlands
- Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat, 9, 1081 BT, Amsterdam, The Netherlands
| | - R Peters
- Institute for Master Education in Manual Therapy, SOMT, Amersfoort, The Netherlands
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - B W Koes
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
- Center for Muscle and Joint Health, University of Southern Denmark, Odense, Denmark
| | - A P Verhagen
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
- Discipline of Physiotherapy, Graduate School of Health, University of Technology Sydney, Sydney, Australia
| |
Collapse
|
25
|
Peters R, Karsten M, Röhle R, Blohmer JU, Speiser D. Assoziierte Tumore bei Familien mit BRCA1/BRCA2-Mutation im FBREK-Zentrum der Charité-Universitätsmedizin Berlin. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1718170] [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: 10/23/2022] Open
Affiliation(s)
- R Peters
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
| | - M.M Karsten
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
| | - R Röhle
- Charité – Universitätsmedizin Berlin, Institut für Biometrie und Klinische Epidemiologie
| | - J.-U Blohmer
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
| | - D Speiser
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
| |
Collapse
|
26
|
Schorn F, Samsun R, Peters R, Stolten D. Methanol: Basischemikalie heute, Energieimportmedium und Ausgangsstoff für erneuerbare Kraftstoffe morgen? CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055089] [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: 11/08/2022]
Affiliation(s)
- F. Schorn
- Forschungszentrum Jülich GmbH IEK-14: Institut für Elektrochemische Verfahrenstechnik Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| | - R. C. Samsun
- Forschungszentrum Jülich GmbH IEK-14: Institut für Elektrochemische Verfahrenstechnik Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| | - R. Peters
- Forschungszentrum Jülich GmbH IEK-14: Institut für Elektrochemische Verfahrenstechnik Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| | - D. Stolten
- Forschungszentrum Jülich GmbH IEK-3: Institut für Techno-ökonomische Systemanalyse Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| |
Collapse
|
27
|
Rampley CPN, Whitehead PG, Softley L, Hossain MA, Jin L, David J, Shawal S, Das P, Thompson IP, Huang WE, Peters R, Holdship P, Hope R, Alabaster G. River toxicity assessment using molecular biosensors: Heavy metal contamination in the Turag-Balu-Buriganga river systems, Dhaka, Bangladesh. Sci Total Environ 2020; 703:134760. [PMID: 31744697 DOI: 10.1016/j.scitotenv.2019.134760] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 07/04/2019] [Revised: 09/29/2019] [Accepted: 09/29/2019] [Indexed: 06/10/2023]
Abstract
Pollution in rapidly urbanising cities and in delta systems is a serious problem that blights the lives and livelihoods of millions of people, damaging and restricting potable water supply and supplies to industry (Whitehead et al, 2015, 2018). Employing new technology based on luminescent molecular biosensors, the toxicity in the rivers around Dhaka in Bangladesh, namely the Turag, Tongi, Balu and Buriganga, has been assessed. Samples taken at 36 sites during medium and low flow conditions and during the Bishwa Ijtema Festival revealed high levels of cell toxicity, as well as high concentrations of metals, particularly aluminium, cadmium, chromium, iron, zinc, lithium, selenium and nickel. Chemical analysis also revealed low dissolved oxygen levels and anoxic conditions in the rivers at certain sites. The bacterial molecular biosensors were demonstrated to be fast, with results in 30 min, robust and a highly sensitive method for the assessment of water toxicity in the field. Furthermore, the biosensor toxicity analysis correlated with the metals data, and a multivariate regression relationship was developed relating toxicity to key metals, such a selenium, zinc and chromium. The resulting model has been validated against split samples and the Bishwa Ijtema Festival data. The combination of modelling and the molecular biosensor technology provides a new approach to detecting and managing pollution in urban river systems.
Collapse
Affiliation(s)
- C P N Rampley
- Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK
| | - P G Whitehead
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK; Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK.
| | - L Softley
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - M A Hossain
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - L Jin
- Geology Department, State University of New York College at Cortland, Cortland, NY 13045, USA
| | - J David
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - S Shawal
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - P Das
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - I P Thompson
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PF, UK
| | - W E Huang
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PF, UK
| | - R Peters
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - P Holdship
- Department of Earth Sciences, University of Oxford, Parks Road, OX1 3AN, UK
| | - R Hope
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - G Alabaster
- United Nations Human Settlements Programme, Waste Management and Sanitation Division, Palais des Nations, Avenue de la Paix, 8-14, 1211 Genève, Switzerland
| |
Collapse
|
28
|
Whitehead PG, Bussi G, Peters R, Hossain MA, Softley L, Shawal S, Jin L, Rampley CPN, Holdship P, Hope R, Alabaster G. Modelling heavy metals in the Buriganga River System, Dhaka, Bangladesh: Impacts of tannery pollution control. Sci Total Environ 2019; 697:134090. [PMID: 32380601 DOI: 10.1016/j.scitotenv.2019.134090] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/22/2019] [Accepted: 08/22/2019] [Indexed: 06/11/2023]
Abstract
Heavy metal pollution from tanneries is a global problem in many rapidly developing economies. Effluent discharges into rivers cause serious problems for water quality, damaging ecology and threatening the livelihoods of people, especially in developing urban centres which often have a high concentration of factories. The industry intensive capital area of Bangladesh is impacted with high levels of metals pollution in rivers in the Greater Dhaka Watershed. Sampling and modelling studies have been undertaken to assess pollution in the Buriganga River System in Dhaka. The process based, dynamic model INCA (Integrated Catchments) model has been used to simulate metals along the Buriganga River System in Central Dhaka. Observed and simulated metals concentrations are high, and the model shows that the proposed transfer of the tannery industry upstream helps to reduce the pollution significantly downstream. However, moving the industry upstream may be counterproductive as it is discharged into the upper reaches of the river. This will create pollution upstream unless the newly constructed effluent treatment system can operate at a high level.
Collapse
Affiliation(s)
- P G Whitehead
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK; Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK.
| | - G Bussi
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - R Peters
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - M A Hossain
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - L Softley
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - S Shawal
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - L Jin
- Geology Department, State University of New York College at Cortland, Cortland, NY 13045, USA
| | - C P N Rampley
- Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK
| | - P Holdship
- Department of Earth Sciences, University of Oxford, Parks Road, OX1 3AN, UK
| | - R Hope
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - G Alabaster
- United Nations Human Settlements Programme, Waste Management and Sanitation Division, Palais des Nations, Avenue de la Paix, 8-14, 1211 Genève, Switzerland
| |
Collapse
|
29
|
Boyde M, Peters R, McGlynn E. 1109Enhancing transition from hospital to home for people with cardiovascular disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0003] [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] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Health care services have a responsibility to ensure transition from hospital to home is seamless as this is a vulnerable time for patients. In 2013 the Cardiac Rehabilitation (CR) and Heart Failure (HF) Management Programs at a large tertiary referral hospital in our city, were re-configured to become one cardiac service. This model of care incorporated management of patients along the continuum of cardiac illness from initial diagnosis to end stage disease including end stage heart failure and intractable angina. This model included nurse-led in-patient consultations, post-discharge case management, CR and HF education and exercise programs, HF titration clinics, and home visits. Within health-care, organisational design can be considered a variable and evolving tool for improving the quality of patient care. The redesign of two clinical services provided an opportunity to improve health-care delivery for patients with cardiovascular disease.
Purpose
To evaluate a patient centred post-discharge model of care for patients admitted to hospital for an acute cardiovascular event.
Methods
A retrospective analysis of routinely collected data was undertaken using standard descriptive statistics to report the number of in-patient consultations, referrals generated, patients case-managed and all cause unplanned readmissions within 28 days of hospital discharge.
Results
Data was analysed from 1 January 2014 to 31 December 2018. Over the 5 years 11929 in-patients with cardiovascular disease received consultations from specialised nursing staff employed in the amalgamated cardiac service and 10598 (89%) patients were referred to appropriate post discharge CR and HF programs. From the in-patient consultations, 2254 (21%) patients who lived within our geographical area were case-managed by our specialist nursing staff. Post-discharge follow-up within 14 days was achieved for 1917 (85%) of these patients. Of the 2254 patients, 322 (14%) had an unplanned all cause readmission within 28 days of hospital discharge.
Conclusion
The evaluation data indicates that our model of integrated care provided effective post discharge management for patients with cardiac disease. Developing a model of care for these patients is challenging as they need to engage in self-care and adhere to a complex medication regime often with changing dosages. However effective case management post discharge including secondary prevention programs can decrease readmissions and improve outcomes for these patients.
Collapse
Affiliation(s)
- M Boyde
- Princess Alexandra Hospital, Brisbane, Australia
| | - R Peters
- Princess Alexandra Hospital, Brisbane, Australia
| | - E McGlynn
- Princess Alexandra Hospital, Brisbane, Australia
| |
Collapse
|
30
|
Peters R, Hipper TJ, Kricun H, Chernak E. A Quantitative Public Health Risk Assessment Tool for Planning for At-Risk Populations. Am J Public Health 2019; 109:S286-S289. [PMID: 31505138 DOI: 10.2105/ajph.2019.305181] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The Drexel University Center for Public Health Readiness and Communication developed a quantitative public health risk assessment tool that has been used in Pennsylvania and across the United States. The tool assesses hazard impacts on health care and public health metrics and incorporates the planning needs of at-risk populations. The flexible platform using Microsoft Excel allows planners to customize hazard assessment and use jurisdiction-specific data. Findings from the risk assessment can guide planning and evaluate preparedness progress over time.
Collapse
Affiliation(s)
- Rachel Peters
- Rachel Peters is with the Department of Health Management and Policy, Dornsife School of Public Health, Drexel University, Philadelphia, PA. Thomas J. Hipper, Hilary Kricun, and Esther Chernak are with the Center for Public Health Readiness and Communication, Department of Environmental and Occupational Health, Dornsife School of Public Health
| | - Thomas J Hipper
- Rachel Peters is with the Department of Health Management and Policy, Dornsife School of Public Health, Drexel University, Philadelphia, PA. Thomas J. Hipper, Hilary Kricun, and Esther Chernak are with the Center for Public Health Readiness and Communication, Department of Environmental and Occupational Health, Dornsife School of Public Health
| | - Hilary Kricun
- Rachel Peters is with the Department of Health Management and Policy, Dornsife School of Public Health, Drexel University, Philadelphia, PA. Thomas J. Hipper, Hilary Kricun, and Esther Chernak are with the Center for Public Health Readiness and Communication, Department of Environmental and Occupational Health, Dornsife School of Public Health
| | - Esther Chernak
- Rachel Peters is with the Department of Health Management and Policy, Dornsife School of Public Health, Drexel University, Philadelphia, PA. Thomas J. Hipper, Hilary Kricun, and Esther Chernak are with the Center for Public Health Readiness and Communication, Department of Environmental and Occupational Health, Dornsife School of Public Health
| |
Collapse
|
31
|
Kumaran G, Razzaq M, Velikova G, Papaxoinis G, Corker S, Fox F, Peters R, Kamposioras K. Patient understanding of the aim and duration of treatment during the consent process. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.157] [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: 11/13/2022] Open
|
32
|
Peters R, Beckett N, Antikainen R, Rockwood K, Bulpitt CJ, Anstey KJ. Subjective memory complaints and incident dementia in a high risk older adult hypertensive population. Age Ageing 2019; 48:253-259. [PMID: 30615065 DOI: 10.1093/ageing/afy193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 03/06/2018] [Revised: 06/07/2018] [Accepted: 12/02/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND there is a growing body of evidence demonstrating an association between subjective memory complaints (SMC) and an increased risk of incident cognitive decline or dementia. To date this has not been examined in hypertensive older adults, a prevalent and growing population group at high risk of cognitive decline. METHODS using data from participants in the Hypertension in the Very Elderly Trial cohort the association between baseline SMC and incident cognitive decline and dementia was examined using Cox proportional hazard regression. Cognitive function was assessed using the Mini-Mental State Exam and diagnoses of dementia were made using standard diagnostic criteria. SMC was assessed by the question 'do you feel that you have more problems with memory than most?' Analyses were rerun to examine the associations by level of baseline cognitive function, to evaluate the role of SMC by dementia type and by sex. RESULTS baseline SMC were associated with an increased risk of developing any dementia (hazard ratio (HR)1.63 (95% confidence intervals (CI): 1.18:2.25)), Alzheimer's disease (HR1.59 (95% CI: 1.08:2.34)) and vascular dementia (HR2.05 (95% CI: 1.19:3.54)). Similar patterns were seen across all levels of baseline MMSE but were strongest in those with scores of 25-27. There were no clear differences by sex. DISCUSSION a positive report of SMC assessed by a single question in an older adult with hypertension raises the possibility of increased risk of incident dementia. As such its use may be a useful addition to the repertoire of the general practitioner and geriatrician when assessing older adults.
Collapse
Affiliation(s)
- R Peters
- Neuroscience Research Australia, Sydney, Australia
| | - N Beckett
- Guys and St Thomas’ NHS Foundation Trust, London, UK
| | | | | | | | - K J Anstey
- Neuroscience Research Australia, Sydney, Australia
- University of New South Wales, Sydney, Australia
| |
Collapse
|
33
|
Soriano V, Peters R, Dharmage SC, Ponsonby AL, Allen K, Perret K, Gurrin LC, Koplin J. Earlier Ingestion of Peanuts Following Change to Infant Feeding Guidelines in Australia. J Allergy Clin Immunol 2019. [DOI: 10.1016/j.jaci.2018.12.947] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
34
|
Wang Y, Koplin J, Lei S, Peters R, Horne S, Hiscock H, Allen K. Time Trends in Adrenaline Auto-Injector Dispensing Patterns Using Australian Pharmaceutical Benefits Scheme Data. J Allergy Clin Immunol 2019. [DOI: 10.1016/j.jaci.2018.12.976] [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: 10/27/2022]
|
35
|
Heine RG, Peters R, Cameron DJ, Alex G, Oliver MR, Hardikar W, Chow CW, McWilliam VL, Moore DJ, Kakakios AM, Cheah E, O'Loughlin EV, Axelrad C, Allen K. Effect of a 4-Food Elimination Diet and Omeprazole in Children with Eosinophilic Esophagitis – A Randomized, Controlled Trial. J Allergy Clin Immunol 2019. [DOI: 10.1016/j.jaci.2018.12.941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
36
|
Peters R, Koplin J, Ponsonby AL, Perret K, Dharmage SC, Allen K. The Natural History of Peanut and Egg Allergy and Predictors of Persistence: The Healthnuts Longitudinal Study, 6-Year-Old Follow-up. J Allergy Clin Immunol 2019. [DOI: 10.1016/j.jaci.2018.12.946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
37
|
Stojkov J, Bowers G, Draper M, Duffield T, Duivenvoorden P, Groleau M, Haupstein D, Peters R, Pritchard J, Radom C, Sillett N, Skippon W, Trépanier H, Fraser D. Hot topic: Management of cull dairy cows—Consensus of an expert consultation in Canada. J Dairy Sci 2018; 101:11170-11174. [DOI: 10.3168/jds.2018-14919] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/27/2018] [Indexed: 11/19/2022]
|
38
|
Decker M, Schorn F, Samsun R, Peters R, Stolten D. Markteintrittsstrategie für Power-to-Liquid-Kraftstoffe - Techno-ökonomische Analyse eines Stand-Alone-Systems. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855027] [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: 11/07/2022]
Affiliation(s)
- M. Decker
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - F. Schorn
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - R. C. Samsun
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - R. Peters
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - D. Stolten
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
- RWTH Aachen; Chair for Fuel Cells; 52072 Aachen Deutschland
| |
Collapse
|
39
|
Weiske S, Schemme S, Samsun R, Peters R, Stolten D. Techno-ökonomische Bewertung einer integrierten Produktionsanlage zur Herstellung von synthetischem Benzin. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855030] [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: 11/09/2022]
Affiliation(s)
- S. Weiske
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - S. Schemme
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - R. C. Samsun
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - R. Peters
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - D. Stolten
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| |
Collapse
|
40
|
De Vries TI, Peters R, Beckett NS, Dorresteijn JAN, Westerink J, Emmelot-Vonk MH, Muller M, Van Der Graaf Y, Bulpitt CJ, Visseren FLJ. 114Estimating individual cardiovascular disease risk reduction by blood pressure lowering in elderly patients: results from the HYVET study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.114] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T I De Vries
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
| | - R Peters
- Imperial College London, School of Public Health, London, United Kingdom
| | - N S Beckett
- Imperial College London, Imperial Clinical Trials Unit, London, United Kingdom
| | - J A N Dorresteijn
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
| | - J Westerink
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
| | - M H Emmelot-Vonk
- University Medical Center Utrecht, Department of Geriatrics, Utrecht, Netherlands
| | - M Muller
- VU University Medical Center, Department of Internal Medicine, Amsterdam, Netherlands
| | - Y Van Der Graaf
- Julius Health Center - Julius Gezondheidscentra, Utrecht, Netherlands
| | - C J Bulpitt
- Imperial College London, Imperial Clinical Trials Unit, London, United Kingdom
| | - F L J Visseren
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
| |
Collapse
|
41
|
Brooijmans T, Okhuijsen R, Oerlemans I, Schoenmakers PJ, Peters R. Acid monomer analysis in waterborne polymer systems by targeted labeling of carboxylic acid functionality, followed by pyrolysis - gas chromatography. J Chromatogr A 2018; 1560:63-70. [PMID: 29773340 DOI: 10.1016/j.chroma.2018.05.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 02/23/2018] [Revised: 05/07/2018] [Accepted: 05/12/2018] [Indexed: 10/16/2022]
Abstract
Pyrolysis - gas chromatography - (PyGC) is a common method to analyse the composition of natural and synthetic resins. The analysis of acid functionality in, for example, waterborne polyacrylates and polyurethanes polymers has proven to be difficult due to solubility issues, inter- and intramolecular interaction effects, lack of detectability in chromatographic analysis, and lack of thermal stability. Conventional analytical techniques, such as PyGC, cannot be used for the direct detection and identification of acidic monomers, due to thermal rearrangements that take place during pyrolysis. To circumvent this, the carboxylic acid groups are protected prior to thermal treatment by reaction with 2-bromoacetophenone. Reaction conditions are investigated and optimised wrt. conversion measurements. The aproach is applied to waterborne polyacryalates and the results are discussed. This approach enables identification and (semi)quantitative analysis of different acid functionalities in waterborne polymers by PyGC.
Collapse
Affiliation(s)
- T Brooijmans
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands.
| | - R Okhuijsen
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands
| | - I Oerlemans
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands
| | - P J Schoenmakers
- University of Amsterdam, van't Hoff Institute for Molecular Science (HIMS), Amsterdam, The Netherlands
| | - R Peters
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands; University of Amsterdam, van't Hoff Institute for Molecular Science (HIMS), Amsterdam, The Netherlands
| |
Collapse
|
42
|
Strobel S, Peters R, Toubassi D. Practice sharing among residents in a family medicine teaching unit. Can Fam Physician 2018; 64:546-548. [PMID: 30002032 PMCID: PMC6042681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Stephenson Strobel
- Family physician in Toronto, Ont, and a doctoral candidate in the Department of Policy Analysis and Management at Cornell University in Ithaca, NY
| | - Rachel Peters
- Family physician with the University Health Network Toronto Western Family Health Team, and at the Centre for Addiction and Mental Health in Toronto
| | - Diana Toubassi
- Assistant Professor in the Department of Family and Community Medicine at the University of Toronto and Site Director of Postgraduate Education at the University Health Network Toronto Western Hospital.
| |
Collapse
|
43
|
Strobel S, Peters R, Toubassi D. [Not Available]. Can Fam Physician 2018; 64:e325-e328. [PMID: 30002043 PMCID: PMC6042661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Stephenson Strobel
- Médecin de famille à Toronto, Ont., et candidat au doctorat au Département d'analyse et de gestion des politiques de l'Université Cornell à Ithaca, NY
| | - Rachel Peters
- Médecin de famille dans l'Équipe santé familiale de l'Hôpital Toronto Western du Réseau universitaire de santé et au Centre de toxicomanie et de santé mentale de Toronto
| | - Diana Toubassi
- Professeure adjointe au Département de médecine familiale et communautaire de l'Université de Toronto et directrice de site, Éducation postdoctorale, à l'hôpital Toronto Western du Réseau universitaire de santé.
| |
Collapse
|
44
|
Snijder M, Bot M, Snoek F, Stronks K, Lok A, Peters R, Penninx B. 2.1-O1Do type 2 diabetes patients in ethnic minority groups in the Netherlands suffer more frequently from depressed mood? The HELIUS study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.039] [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: 11/13/2022] Open
Affiliation(s)
- M Snijder
- Dept Public Health, AMC, Amsterdam, The Netherlands
| | - M Bot
- Dept Psychiatry, VUmc, Amsterdam, The Netherlands
| | - F Snoek
- Dept Medical Psychology, VUmc, Amsterdam, The Netherlands
- Dept Medical Psychology, AMC, Amsterdam, The Netherlands
| | - K Stronks
- Dept Public Health, AMC, Amsterdam, The Netherlands
| | - A Lok
- Dept Psychiatry, AMC, Amsterdam, The Netherlands
| | - R Peters
- Dept Cardiology, AMC, Amsterdam, The Netherlands
| | - B Penninx
- Dept Psychiatry, VUmc, Amsterdam, The Netherlands
| |
Collapse
|
45
|
Hoenink J, Beune E, Hartman M, Snijder M, Dijkshoorn H, Peters R, Bal E, de Graft-Aikins A, Stronks K, Nicolaou M. 7.1-O6The body size ideals and body size satisfaction of Dutch residents and African-origin residents living in Amsterdam. The HELIUS Study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.236] [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: 11/12/2022] Open
Affiliation(s)
- J Hoenink
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - E Beune
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - M Hartman
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - M Snijder
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - H Dijkshoorn
- Department of Epidemiology, Health Promotion and Care Innovation, Public Health Service of Amsterdam, The Netherlands
| | - R Peters
- Department of Cardiology, Academic Medical Centre, University of Amsterdam, The Netherlands
| | - E Bal
- Department of Social and Cultural Anthropology, VU University, Amsterdam, The Netherlands
| | - A de Graft-Aikins
- Regional Institute for Population Studies, University of Ghana, Ghana
| | - K Stronks
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - M Nicolaou
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| |
Collapse
|
46
|
Muilwijk M, Celis-Morales C, Peters R, Snijder M, Vaz F, Gill J, van Valkengoed I. 5.10-P7The association of acylcarnitines and amino acids with age in Dutch and South-Asian Surinamese living in Amsterdam, the Netherlands: results from the HELIUS study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.193] [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: 11/14/2022] Open
Affiliation(s)
- M Muilwijk
- Department of Public Health, Academic Medical Center, University of Amsterdam, The Netherlands
| | - C Celis-Morales
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom
| | - R Peters
- Cardiology Department, Academic Medical Center, University of Amsterdam, The Netherlands
| | - M Snijder
- Department of Public Health, Academic Medical Center, University of Amsterdam, The Netherlands
| | - F Vaz
- Laboratory Genetic Metabolic Diseases, Academic Medical Center, University of Amsterdam, The Netherlands
| | - J Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom
| | - I van Valkengoed
- Department of Public Health, Academic Medical Center, University of Amsterdam, The Netherlands
| |
Collapse
|
47
|
Anujuo K, Agyemang C, Snijder M, Jean-Louis G, van den Born B, Peters R, Stronks K. 2.1-O5The contribution of short sleep duration to ethnic differences in cardiovascular disease in the Netherlands - the HELIUS study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.043] [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: 11/14/2022] Open
Affiliation(s)
- K Anujuo
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - C Agyemang
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - M Snijder
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - G Jean-Louis
- New York University School of Medicine, United States of America
| | - B van den Born
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - R Peters
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - K Stronks
- Academic Medical Center, University of Amsterdam, The Netherlands
| |
Collapse
|
48
|
Anstey KJ, Peters R. Oversimplification of Dementia Risk Reduction Messaging Is a Threat to Knowledge Translation in Dementia Prevention Research. J Prev Alzheimers Dis 2018; 5:2-4. [PMID: 29405224 DOI: 10.14283/jpad.2017.27] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The evidence for specific risk factors for Alzheimer’s disease, vascular dementia and all cause dementia is increasing rapidly in quantity and quality. This has enabled the compilation of risk assessment tools for Alzheimer’s disease (1), and their validation (2). It has also supported the promulgation of public health messaging about dementia risk reduction or dementia prevention. In general these developments are strong advances in the field of dementia prevention. However, the oversimplification of the findings and possible over-or mis-interpretation of their meaning, poses risks to accurate and effective knowledge translation in this field. Lack of balance in the interpretation of evidence on risk factors for dementia may lead to trials of interventions for dementia prevention that are ineffective. This will waste resources and create pessimism about dementia prevention research. Two potential problems that may occur when translating evidence from observational research into prescriptions for prevention are identified here. The first is the generalisation of specific findings about risk factors either to multiple types of dementia or to multiple populations, when the evidence is in fact relevant to specific populations or outcomes. The second is the inference that reversal of a risk factor will lead to prevention, without knowledge of the threshold at which a factor becomes a ‘risk’, or evidence that reversal of the risk factor also reverses neuropathological processes instigated or caused by the risk factor.
Collapse
Affiliation(s)
- K J Anstey
- Kaarin J. Anstey, Florey Building, Mills Road, The Australian National University, Acton 0200, Australia. Ph. + 61 2 61258410.
| | | |
Collapse
|
49
|
Wong Y, Nunan T, Hickey A, Denaro C, Adsett J, Peters R, Atherton J. From Hospital to Home: Insights from the Queensland Statewide Heart Failure Support Services Registry on Heart Failure Transitional Care. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
50
|
Kemal E, Peters R, Bourke S, Fairclough S, Bergstrom-Mann P, Owen DM, Sandiford L, Dailey LA, Green M. Magnetic conjugated polymer nanoparticles doped with a europium complex for biomedical imaging. Photochem Photobiol Sci 2018; 17:718-721. [DOI: 10.1039/c7pp00402h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Self-assembling conjugated polymer nanoparticles containing PVK and PLGA-PEG as a matrix polymer were doped with both a luminescent rare-earth complex and magnetic nanoparticles (SPIONs), giving rise to materials that are both luminescent and magnetic.
Collapse
Affiliation(s)
- E. Kemal
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - R. Peters
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - S. Bourke
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - S. Fairclough
- Department of Physics
- King's College London
- Strand
- London
- UK
| | | | - D. M. Owen
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - L. Sandiford
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - L. A. Dailey
- Department of Pharmacy
- Martin-Luther-Universität Halle-Wittenberg
- 06120 Halle (Saale)
- Germany
| | - M. Green
- Department of Physics
- King's College London
- Strand
- London
- UK
| |
Collapse
|