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Costa ISD, Junot T, Silva FL, Felix W, Cardozo Fh JL, Pereira de Araujo AF, Pais do Amaral C, Gonçalves S, Santos NC, Leite JRSA, Bloch C, Brand GD. Occurrence and evolutionary conservation analysis of α-helical cationic amphiphilic segments in the human proteome. FEBS J 2024; 291:547-565. [PMID: 37945538 DOI: 10.1111/febs.16997] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/14/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
The existence of encrypted fragments with antimicrobial activity in human proteins has been thoroughly demonstrated in the literature. Recently, algorithms for the large-scale identification of these segments in whole proteomes were developed, and the pervasiveness of this phenomenon was stated. These algorithms typically mine encrypted cationic and amphiphilic segments of proteins, which, when synthesized as individual polypeptide sequences, exert antimicrobial activity by membrane disruption. In the present report, the human reference proteome was submitted to the software kamal for the uncovering of protein segments that correspond to putative intragenic antimicrobial peptides (IAPs). The assessment of the identity of these segments, frequency, functional classes of parent proteins, structural relevance, and evolutionary conservation of amino acid residues within their corresponding proteins was conducted in silico. Additionally, the antimicrobial and anticancer activity of six selected synthetic peptides was evaluated. Our results indicate that cationic and amphiphilic segments can be found in 2% of all human proteins, but are more common in transmembrane and peripheral membrane proteins. These segments are surface-exposed basic patches whose amino acid residues present similar conservation scores to other residues with similar solvent accessibility. Moreover, the antimicrobial and anticancer activity of the synthetic putative IAP sequences was irrespective to whether these are associated to membranes in the cellular setting. Our study discusses these findings in light of the current understanding of encrypted peptide sequences, offering some insights into the relevance of these segments to the organism in the context of their harboring proteins or as separate polypeptide sequences.
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Affiliation(s)
- Igor S D Costa
- Laboratório de Síntese e Análise de Biomoléculas - LSAB, Instituto de Química, Universidade de Brasília, Brazil
| | - Tiago Junot
- Laboratório de Síntese e Análise de Biomoléculas - LSAB, Instituto de Química, Universidade de Brasília, Brazil
| | - Fernanda L Silva
- Laboratório de Síntese e Análise de Biomoléculas - LSAB, Instituto de Química, Universidade de Brasília, Brazil
| | - Wanessa Felix
- Núcleo de Pesquisa em Morfologia e Imunologia Aplicada - NuPMIA, Faculdade de Medicina, Universidade de Brasília, Brazil
| | - José L Cardozo Fh
- Laboratório de Espectrometria de Massa - LEM, Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil
| | - Antonio F Pereira de Araujo
- Laboratório de Biofísica Teórica e Computacional, Departamento de Biologia Celular, Universidade de Brasília, Brazil
| | | | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Portugal
| | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Portugal
| | - José R S A Leite
- Núcleo de Pesquisa em Morfologia e Imunologia Aplicada - NuPMIA, Faculdade de Medicina, Universidade de Brasília, Brazil
| | - Carlos Bloch
- Laboratório de Espectrometria de Massa - LEM, Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil
| | - Guilherme D Brand
- Laboratório de Síntese e Análise de Biomoléculas - LSAB, Instituto de Química, Universidade de Brasília, Brazil
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Girgis ST, Adika E, Nenyewodey FE, Senoo Jnr DK, Ngoi JM, Bandoh K, Lorenz O, van de Steeg G, Harrott AJR, Nsoh S, Judge K, Pearson RD, Almagro-Garcia J, Saiid S, Atampah S, Amoako EK, Morang'a CM, Asoala V, Adjei ES, Burden W, Roberts-Sengier W, Drury E, Pierce ML, Gonçalves S, Awandare GA, Kwiatkowski DP, Amenga-Etego LN, Hamilton WL. Drug resistance and vaccine target surveillance of Plasmodium falciparum using nanopore sequencing in Ghana. Nat Microbiol 2023; 8:2365-2377. [PMID: 37996707 PMCID: PMC10686832 DOI: 10.1038/s41564-023-01516-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 10/06/2023] [Indexed: 11/25/2023]
Abstract
Malaria results in over 600,000 deaths annually, with the highest burden of deaths in young children living in sub-Saharan Africa. Molecular surveillance can provide important information for malaria control policies, including detection of antimalarial drug resistance. However, genome sequencing capacity in malaria-endemic countries is limited. We designed and implemented an end-to-end workflow to detect Plasmodium falciparum antimalarial resistance markers and diversity in the vaccine target circumsporozoite protein (csp) using nanopore sequencing in Ghana. We analysed 196 clinical samples and showed that our method is rapid, robust, accurate and straightforward to implement. Importantly, our method could be applied to dried blood spot samples, which are readily collected in endemic settings. We report that P. falciparum parasites in Ghana are mostly susceptible to chloroquine, with persistent sulfadoxine-pyrimethamine resistance and no evidence of artemisinin resistance. Multiple single nucleotide polymorphisms were identified in csp, but their significance is uncertain. Our study demonstrates the feasibility of nanopore sequencing for malaria genomic surveillance in endemic countries.
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Affiliation(s)
- Sophia T Girgis
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Edem Adika
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Felix E Nenyewodey
- Navrongo Health Research Centre (NHRC), Ghana Health Service, Navrongo, Upper East Region, Ghana
| | - Dodzi K Senoo Jnr
- Navrongo Health Research Centre (NHRC), Ghana Health Service, Navrongo, Upper East Region, Ghana
| | - Joyce M Ngoi
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Kukua Bandoh
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Oliver Lorenz
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Guus van de Steeg
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | | | - Sebastian Nsoh
- Navrongo Health Research Centre (NHRC), Ghana Health Service, Navrongo, Upper East Region, Ghana
| | - Kim Judge
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Richard D Pearson
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | | | - Samirah Saiid
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Solomon Atampah
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Enock K Amoako
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Collins M Morang'a
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Victor Asoala
- Navrongo Health Research Centre (NHRC), Ghana Health Service, Navrongo, Upper East Region, Ghana
| | - Elrmion S Adjei
- Ledzokuku Krowor Municipal Assembly (LEKMA) Hospital, Accra, Ghana
| | - William Burden
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | | | - Eleanor Drury
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Megan L Pierce
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Sónia Gonçalves
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Gordon A Awandare
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | | | - Lucas N Amenga-Etego
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), College of Basic and Applied Sciences, University of Ghana, Legon, Ghana.
| | - William L Hamilton
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK.
- Department of Medicine, University of Cambridge, Cambridge, UK.
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
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Ribeiro A, Sinval J, Félix S, Guimarães C, Machado BC, Gonçalves S, de Lourdes M, Conceição EM. Food Addiction and Grazing-The Role of Difficulties in Emotion Regulation and Negative Urgency in University Students. Nutrients 2023; 15:4410. [PMID: 37892485 PMCID: PMC10610407 DOI: 10.3390/nu15204410] [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: 09/12/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
University students are a vulnerable population to the development of disordered eating, such as food addiction (FA) and grazing. FA is an emerging concept characterized by an intense desire to eat hyper-palatable foods. Grazing is characterized by the repetitive and unplanned ingestion of food throughout a period of time. Both FA and grazing have been associated with increased scores of negative urgency (NU) and difficulties in emotion regulation (ER). This study aims to evaluate the frequency of FA and grazing in a university population and to test the direct, total, and indirect effects-via FA-of ER and NU on repetitive eating and compulsive grazing. A total of 338 participants responded to a set of psychological measures assessing these variables. Thirty-six (10.7%) participants met the criteria for FA diagnosis and 184 (54.4%) presented grazing. Confirmatory factor analysis showed acceptable fit indexes for the model tested (χ2(1695) = 3167.575; p < 0.001; CFI = 0.955; NFI = 0.908; TLI = 0.953; SRMR = 0.085; RMSEA = 0.051; CI 90% (0.048; 0.053); P[RMSEA ≤ 0.05] = 0.318) and suggested that FA partially mediated the effect of difficulties in ER and NU on grazing, specifically on compulsive grazing. The results indicate that individuals with difficulties in ER and impulse control under negative emotions are more likely to engage in grazing if food addiction scores are higher. These results highlight the importance of assessing these variables, particularly in at-risk populations such as university students.
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Affiliation(s)
- Andreia Ribeiro
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal; (A.R.); (S.F.); (C.G.); (S.G.); (M.d.L.)
| | - Jorge Sinval
- National Institute of Education, Nanyang Technological University, Singapore 637616, Singapore;
- Department of Evidence-Based Health, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo 04023-062, SP, Brazil
- Faculty of Philosophy, Sciences and Languages of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-901, SP, Brazil
- Business Research Unit (BRU-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), 1649-026 Lisbon, Portugal
| | - Sílvia Félix
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal; (A.R.); (S.F.); (C.G.); (S.G.); (M.d.L.)
| | - Carolina Guimarães
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal; (A.R.); (S.F.); (C.G.); (S.G.); (M.d.L.)
| | - Bárbara César Machado
- Research Centre for Human Development (CEDH), Faculty of Education and Psychology, Universidade Católica Portuguesa, 4169-005 Porto, Portugal;
| | - Sónia Gonçalves
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal; (A.R.); (S.F.); (C.G.); (S.G.); (M.d.L.)
| | - Marta de Lourdes
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal; (A.R.); (S.F.); (C.G.); (S.G.); (M.d.L.)
| | - Eva M. Conceição
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal; (A.R.); (S.F.); (C.G.); (S.G.); (M.d.L.)
- Faculty of Psychology and Educational Sciences, University of Porto, 4200-135 Porto, Portugal
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Ramalho SM, Conceição E, Tavares AC, Freitas AL, Machado BC, Gonçalves S. Loss of Control over Eating, Inhibitory Control, and Reward Sensitivity in Children and Adolescents: A Systematic Review. Nutrients 2023; 15:2673. [PMID: 37375576 DOI: 10.3390/nu15122673] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
OVERVIEW In recent years, there has been increasing clinical and empirical interest in the concept of pediatric loss of control over eating, particularly about its link with the executive functions related to the concept of impulsivity, such as inhibitory control and reward sensitivity. However, there has yet to be a comprehensive literature synthesis about the associations between these variables. A comprehensive literature synthesis would help identify future research directions to advance the field in this area. Therefore, this systematic review aimed to synthesize evidence concerning the associations between loss of control over eating, inhibitory control, and reward sensitivity in children and adolescents. METHODS The systematic review was conducted according to the guidelines proposed by PRISMA in Web of Science, Scopus, PubMed, and PsycINFO. The Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies was used to assess the risk of bias. RESULTS Twelve studies met the selection criteria and were included in the final review. Overall, methodological heterogeneity, variability in assessment methods, and the age of participants make it difficult to draw general conclusions. Nevertheless, most studies with community samples of adolescents indicate that inhibitory control difficulties are linked to the concept of loss of control eating. The presence of obesity seems to be associated with inhibitory control difficulties, regardless of the presence of loss of control eating. Studies on reward sensitivity are scarcer. However, it has been suggested that higher reward sensitivity is related to loss of control eating behaviors in young people, particularly binge eating. CONCLUSIONS The literature on the link between loss of control eating and trait-level facets of impulsivity (low inhibitory control and higher reward sensitivity) among young people remains limited, and more studies on children are needed. Findings from this review may make healthcare professionals more aware of the potential clinical importance of targeting the trait-level facets of impulsivity and help to inform existing and future weight-loss/maintenance interventions in childhood and adolescence.
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Affiliation(s)
- Sofia Marques Ramalho
- Centro de Investigação em Psicologia para o Desenvolvimento (CIPD), 4100-346 Porto, Portugal
- Instituto de Psicologia e de Ciências da Educação, Universidade Lusíada (Porto), 4100-348 Porto, Portugal
| | - Eva Conceição
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, 4704-553 Braga, Portugal
| | - Ana Cristina Tavares
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, 4704-553 Braga, Portugal
| | - Ana Luísa Freitas
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, 4704-553 Braga, Portugal
| | - Bárbara César Machado
- Research Centre for Human Development (CEDH), Faculdade de Educação e Psicologia, Portuguese Catholic University, 4169-005 Porto, Portugal
| | - Sónia Gonçalves
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, 4704-553 Braga, Portugal
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Coelho C, Machado P, Machado BC, Gonçalves S. Appearance Comparisons, Affect, Body Dissatisfaction and Eating Pathology in Portuguese Female University Students. Nutrients 2023; 15:nu15112484. [PMID: 37299448 DOI: 10.3390/nu15112484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
Physical appearance comparisons have been theorized to be associated with negative indicators of body image. This study aimed to study appearance comparisons and their association to affect, body dissatisfaction, and eating pathology. Three hundred and ten female university students with ages between 17 and 25 years (M = 20.2, SD = 1.9) completed sociodemographic and clinical data, self-reported questionnaires, and questions about appearance comparisons. Among the participants, 98.71% reported making appearance comparisons, and 42.15% of these reported making them frequently or always. Higher reported frequencies of appearance comparisons were related to higher levels of body dissatisfaction, negative affect, and eating pathology. Appearance comparisons to acquaintances were the most frequent. Comparisons in person and through media were reported in similar proportions. Upward comparisons were more frequent than lateral and downward comparisons and were related to higher levels of body dissatisfaction than downward comparisons and to higher levels of body dissatisfaction, negative affect, and eating pathology than lateral comparisons. Upward comparisons to close peers were associated with higher body dissatisfaction as opposed to models/celebrities. Results, limitations, and implications are discussed.
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Affiliation(s)
- Carol Coelho
- Psychology School, University of Minho, 4704-553 Braga, Portugal
| | - Paulo Machado
- Psychology School, University of Minho, 4704-553 Braga, Portugal
| | - Bárbara César Machado
- CEDH-Research Centre for Human Development, Faculdade de Educação e Psicologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
| | - Sónia Gonçalves
- Psychology School, University of Minho, 4704-553 Braga, Portugal
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Wasakul V, Disratthakit A, Mayxay M, Chindavongsa K, Sengsavath V, Thuy-Nhien N, Pearson RD, Phalivong S, Xayvanghang S, Maude RJ, Gonçalves S, Day NP, Newton PN, Ashley EA, Kwiatkowski DP, Dondorp AM, Miotto O. Malaria outbreak in Laos driven by a selective sweep for Plasmodium falciparum kelch13 R539T mutants: a genetic epidemiology analysis. Lancet Infect Dis 2023; 23:568-577. [PMID: 36462526 PMCID: PMC10914674 DOI: 10.1016/s1473-3099(22)00697-1] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/13/2022] [Accepted: 10/13/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND Malaria outbreaks are important public health concerns that can cause resurgence in endemic regions approaching elimination. We investigated a Plasmodium falciparum outbreak in Attapeu Province, Laos, during the 2020-21 malaria season, using genomic epidemiology methods to elucidate parasite population dynamics and identify its causes. METHODS In this genetic analysis, 2164 P falciparum dried blood spot samples were collected from southern Laos between Jan 1, 2017, and April 1, 2021, which included 249 collected during the Attapeu outbreak between April 1, 2020, and April 1, 2021, by routine surveillance. Genetic barcodes obtained from these samples were used to investigate epidemiological changes underpinning the outbreak, estimate population diversity, and analyse population structure. Whole-genome sequencing data from additional historical samples were used to reconstruct the ancestry of outbreak strains using identity-by-descent analyses. FINDINGS The outbreak parasite populations were characterised by unprecedented loss of genetic diversity, primarily caused by rapid clonal expansion of a multidrug-resistant strain (LAA1) carrying the kelch13 Arg539Thr (R539T) mutation. LAA1 replaced kelch13 Cys580Tyr (C580Y) mutants resistant to dihydroartemisinin-piperaquine (KEL1/PLA1) as the dominant strain. LAA1 inherited 58·8% of its genome from a strain circulating in Cambodia in 2008. A secondary outbreak strain (LAA2) carried the kelch13 C580Y allele, and a genome that is essentially identical to a Cambodian parasite from 2009. A third, low-frequency strain (LAA7) was a recombinant of KEL1/PLA1 with a kelch13 R539T mutant. INTERPRETATION These results strongly suggest that the outbreak was driven by a selective sweep, possibly associated with multidrug-resistant phenotypes of the outbreak strains. Established resistant populations can circulate at low frequencies for years before suddenly overwhelming dominant strains when the conditions for selection become favourable-eg, when front-line therapies change. Genetic surveillance can support elimination by characterising key properties of outbreaks such as population diversity, drug resistance marker prevalence, and the origins of outbreak strains. FUNDING Bill & Melinda Gates Foundation; The Global Fund to Fight AIDS, Tuberculosis and Malaria; Wellcome Trust. TRANSLATION For the Lao translation of the abstract see Supplementary Materials section.
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Affiliation(s)
- Varanya Wasakul
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Areeya Disratthakit
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Mayfong Mayxay
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos; Institute of Research and Education Development, University of Health Sciences, Ministry of Health, Vientiane, Laos; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Oxford University, Oxford, UK
| | | | | | - Nguyen Thuy-Nhien
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam
| | | | - Sonexay Phalivong
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
| | - Saiamphone Xayvanghang
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
| | - Richard J Maude
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Oxford University, Oxford, UK; Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
| | | | - Nicholas P Day
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Oxford University, Oxford, UK
| | - Paul N Newton
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Oxford University, Oxford, UK
| | - Elizabeth A Ashley
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Oxford University, Oxford, UK
| | | | - Arjen M Dondorp
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Oxford University, Oxford, UK
| | - Olivo Miotto
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Oxford University, Oxford, UK; Wellcome Sanger Institute, Hinxton, UK.
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Gonçalves S, Santos NC. Membrane-Peptide Interactions: From Basics to Current Applications 2.0. Int J Mol Sci 2023; 24:ijms24087202. [PMID: 37108363 PMCID: PMC10138927 DOI: 10.3390/ijms24087202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
The interaction between peptides and biological membranes is of fundamental importance in the mechanism of numerous membrane-mediated cellular processes, including antimicrobial peptide action, hormone-receptor interactions, drug bioavailability across the blood-brain barrier, and viral fusion processes [...].
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Affiliation(s)
- Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
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Baenas I, Neufeld CB, Ramos R, Munguía L, Pessa RP, Rodrigues T, Jiménez-Murcia S, Gonçalves S, Teodoro MC, Pinto-Bastos A, Almeida NO, Granero R, Etxandi M, Soares SRS, Fernández-Aranda F, Machado PPP. Eating disorders during lockdown: the transcultural influence on eating and mood disturbances in Ibero-Brazilian population. J Eat Disord 2023; 11:39. [PMID: 36906672 PMCID: PMC10008014 DOI: 10.1186/s40337-023-00762-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/23/2023] [Indexed: 03/13/2023] Open
Abstract
BACKGROUND COVID-19 pandemic has implied exceptional restrictive measures to contain its widespread, with adverse consequences on mental health, especially for those people with a background of mental illness, such as eating disorders (EDs). In this population, the influence of socio-cultural aspects on mental health has been still underexplored. Then, the main aim of this study was to assess changes in eating and general psychopathology in people with EDs during lockdown regarding the ED subtype, age, and provenance, and considering socio-cultural aspects (e.g., socioeconomical factors such as work and financial losses, social support, restrictive measures, or health accessibility, among others). METHODS The clinical sample was composed of 264 female participants with EDs (74 anorexia nervosa (AN), 44 bulimia nervosa (BN), 81 binge eating disorder (BED), and 65 other specified feeding and eating disorder (OSFED)), with a mean age of 33.49 years old (SD = 12.54), from specialized ED units in Brazil, Portugal, and Spain. The participants were evaluated using the COVID-19 Isolation Eating Scale (CIES). RESULTS A global impairment in mood symptoms and emotion regulation was reported in all the ED subtypes, groups of age, and countries. Spanish and Portuguese individuals seemed more resilient than Brazilian ones (p < .05), who reported a more adverse socio-cultural context (i.e., physical health, socio-familial, occupational, and economic status) (p < .001). A global trend to eating symptoms worsening during lockdown was observed, regardless of the ED subtype, group of age, and country, but without reaching statistical significance. However, the AN and BED groups described the highest worsening of the eating habits during lockdown. Moreover, individuals with BED significantly increased their weight and body mass index, similarly to BN, and in contrast to the AN and OSFED groups. Finally, we failed to find significant differences between groups of age although the younger group described a significant worsening of the eating symptoms during lockdown. CONCLUSIONS This study reports a psychopathological impairment in patients with EDs during lockdown, being socio-cultural aspects potential modulatory factors. Individualized approaches to detect special vulnerable groups and long-term follow-ups are still needed.
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Affiliation(s)
- Isabel Baenas
- Eating Disorders Unit, Department of Psychology, Bellvitge University Hospital-IDIBELL, 08907, Barcelona, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, 28029, Barcelona, Spain.,Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Programme, Bellvitge Biomedical Research Institute (IDIBELL), 08908, Barcelona, Spain
| | - Carmem Beatriz Neufeld
- Department of Psychology, Faculty of Philosophy, Sciences and Languages of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Rita Ramos
- Psychotherapy and Psychopathology Lab-Psychology Research Center, School of Psychology, University of Minho, 4710-057, Braga, Portugal
| | - Lucero Munguía
- Eating Disorders Unit, Department of Psychology, Bellvitge University Hospital-IDIBELL, 08907, Barcelona, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, 28029, Barcelona, Spain.,Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Programme, Bellvitge Biomedical Research Institute (IDIBELL), 08908, Barcelona, Spain
| | - Rosane P Pessa
- Department of Maternal-Infant and Public Health Nursing, University of São Paulo at Ribeirão Preto College of Nursing, São Paulo, Brazil
| | - Tânia Rodrigues
- Psychotherapy and Psychopathology Lab-Psychology Research Center, School of Psychology, University of Minho, 4710-057, Braga, Portugal
| | - Susana Jiménez-Murcia
- Eating Disorders Unit, Department of Psychology, Bellvitge University Hospital-IDIBELL, 08907, Barcelona, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, 28029, Barcelona, Spain.,Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Programme, Bellvitge Biomedical Research Institute (IDIBELL), 08908, Barcelona, Spain.,Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, 08907, Barcelona, Spain
| | - Sónia Gonçalves
- Psychotherapy and Psychopathology Lab-Psychology Research Center, School of Psychology, University of Minho, 4710-057, Braga, Portugal
| | - Marília C Teodoro
- Department of Psychology, Faculty of Philosophy, Sciences and Languages of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Ana Pinto-Bastos
- Psychotherapy and Psychopathology Lab-Psychology Research Center, School of Psychology, University of Minho, 4710-057, Braga, Portugal
| | - Nazaré O Almeida
- Department of Psychology, Faculty of Philosophy, Sciences and Languages of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Roser Granero
- Eating Disorders Unit, Department of Psychology, Bellvitge University Hospital-IDIBELL, 08907, Barcelona, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, 28029, Barcelona, Spain.,Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Programme, Bellvitge Biomedical Research Institute (IDIBELL), 08908, Barcelona, Spain.,Department of Psychobiology and Methodology, Autonomous University of Barcelona, 08193, Barcelona, Spain
| | - Mikel Etxandi
- Eating Disorders Unit, Department of Psychology, Bellvitge University Hospital-IDIBELL, 08907, Barcelona, Spain.,Department of Psychiatry, Hospital Universitari Germans Trias I Pujol, IGTP Campus Can Ruti, Badalona, Spain
| | - Shauana R S Soares
- Program Public Health Nursing, University of São Paulo at Ribeirão Preto College of Nursing, Ribeirão Preto, Brazil
| | - Fernando Fernández-Aranda
- Eating Disorders Unit, Department of Psychology, Bellvitge University Hospital-IDIBELL, 08907, Barcelona, Spain. .,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, 28029, Barcelona, Spain. .,Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Programme, Bellvitge Biomedical Research Institute (IDIBELL), 08908, Barcelona, Spain. .,Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, 08907, Barcelona, Spain.
| | - Paulo P P Machado
- Psychotherapy and Psychopathology Lab-Psychology Research Center, School of Psychology, University of Minho, 4710-057, Braga, Portugal.
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9
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Machado BC, Moreira CS, Correia M, Veiga E, Gonçalves S. Coping as a Mediator and Moderator between Psychological Distress and Disordered Eating Behaviors and Weight Changes during the COVID-19 Pandemic. Int J Environ Res Public Health 2023; 20:2504. [PMID: 36767871 PMCID: PMC9915561 DOI: 10.3390/ijerph20032504] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Previous research has already shown the negative impact of the COVID-19 pandemic on college students' well-being and mental health. Eating problems and weight gain due to changes in eating habits and physical activity experienced during this period have also been noticed. However, few studies have explored the role of students' resources as used during the COVID-19 pandemic, such as coping strategies. This study aimed to (1) explore the associations among psychological distress, disordered eating, coping strategies, and weight changes; (2) examine the moderating role of coping strategies in the process of weight gain and weight loss; and (3) study the mediating role of coping strategies in the process of weight gain and weight loss. The participants in this study were 772 students at a Portuguese university. The data collected included sociodemographic data and three self-reported questionnaires (Depression, Anxiety, and Stress Scale; Eating Disorder Examination Questionnaire; Brief COPE) during the first few months of the pandemic, which included a 72-day full national lockdown. The results showed that depression, anxiety, stress, and disordered eating were related to increased weight. Guilt, denial, self-distraction, use of substances, and behavior disinvestment were also related to increased weight. Behavioral disinvestment had a strong mediating effect on weight gain. Additionally, planning, positive reframing, and acceptance all showed a moderating effect between psychological distress and weight changes. In conclusion, coping strategies allow for a better understanding of the mechanisms by which psychological distress and disordered eating were related to weight changes during the pandemic.
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Affiliation(s)
- Bárbara Cesar Machado
- CEDH—Research Centre for Human Development, Faculdade de Educação e Psicologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
| | - Célia S. Moreira
- Centre of Mathematics & Faculty of Sciences, University of Porto (CMUP & FCUP), 4169-007 Porto, Portugal
| | - Marta Correia
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
| | - Elisa Veiga
- CEDH—Research Centre for Human Development, Faculdade de Educação e Psicologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
| | - Sónia Gonçalves
- School of Psychology, University of Minho, 4710-057 Braga, Portugal
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10
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Trimarsanto H, Amato R, Pearson RD, Sutanto E, Noviyanti R, Trianty L, Marfurt J, Pava Z, Echeverry DF, Lopera-Mesa TM, Montenegro LM, Tobón-Castaño A, Grigg MJ, Barber B, William T, Anstey NM, Getachew S, Petros B, Aseffa A, Assefa A, Rahim AG, Chau NH, Hien TT, Alam MS, Khan WA, Ley B, Thriemer K, Wangchuck S, Hamedi Y, Adam I, Liu Y, Gao Q, Sriprawat K, Ferreira MU, Laman M, Barry A, Mueller I, Lacerda MVG, Llanos-Cuentas A, Krudsood S, Lon C, Mohammed R, Yilma D, Pereira DB, Espino FEJ, Chu CS, Vélez ID, Namaik-Larp C, Villegas MF, Green JA, Koh G, Rayner JC, Drury E, Gonçalves S, Simpson V, Miotto O, Miles A, White NJ, Nosten F, Kwiatkowski DP, Price RN, Auburn S. A molecular barcode and web-based data analysis tool to identify imported Plasmodium vivax malaria. Commun Biol 2022; 5:1411. [PMID: 36564617 PMCID: PMC9789135 DOI: 10.1038/s42003-022-04352-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/08/2022] [Indexed: 12/25/2022] Open
Abstract
Traditionally, patient travel history has been used to distinguish imported from autochthonous malaria cases, but the dormant liver stages of Plasmodium vivax confound this approach. Molecular tools offer an alternative method to identify, and map imported cases. Using machine learning approaches incorporating hierarchical fixation index and decision tree analyses applied to 799 P. vivax genomes from 21 countries, we identified 33-SNP, 50-SNP and 55-SNP barcodes (GEO33, GEO50 and GEO55), with high capacity to predict the infection's country of origin. The Matthews correlation coefficient (MCC) for an existing, commonly applied 38-SNP barcode (BR38) exceeded 0.80 in 62% countries. The GEO panels outperformed BR38, with median MCCs > 0.80 in 90% countries at GEO33, and 95% at GEO50 and GEO55. An online, open-access, likelihood-based classifier framework was established to support data analysis (vivaxGEN-geo). The SNP selection and classifier methods can be readily amended for other use cases to support malaria control programs.
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Affiliation(s)
- Hidayat Trimarsanto
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
- Eijkman Institute for Molecular Biology, Jakarta, Indonesia
| | - Roberto Amato
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | | | - Edwin Sutanto
- Eijkman Institute for Molecular Biology, Jakarta, Indonesia
- Exeins Health Initiative, Jakarta, Indonesia
| | | | - Leily Trianty
- Eijkman Institute for Molecular Biology, Jakarta, Indonesia
| | - Jutta Marfurt
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
| | - Zuleima Pava
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
| | - Diego F Echeverry
- International Training and Medical Research Center (CIDEIM), Cali, Colombia
- Departamento de Microbiología, Universidad del Valle, Cali, Colombia
- Universidad Icesi, Cali, Colombia
| | | | | | | | - Matthew J Grigg
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
- Infectious Diseases Society Sabah-Menzies School of Health Research Clinical Research Unit, Kota Kinabalu, Sabah, Malaysia
| | - Bridget Barber
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
- Infectious Diseases Society Sabah-Menzies School of Health Research Clinical Research Unit, Kota Kinabalu, Sabah, Malaysia
| | - Timothy William
- Infectious Diseases Society Sabah-Menzies School of Health Research Clinical Research Unit, Kota Kinabalu, Sabah, Malaysia
- Clinical Research Centre, Queen Elizabeth Hospital, Sabah, Malaysia
| | - Nicholas M Anstey
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
| | - Sisay Getachew
- College of Natural Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Beyene Petros
- College of Natural Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Abraham Aseffa
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | | | - Awab G Rahim
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
- Nangarhar Medical Faculty, Nangarhar University, Ministry of Higher Education, Jalalabad, Afghanistan
| | - Nguyen H Chau
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Tran T Hien
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Mohammad S Alam
- Infectious Diseases Division, International Centre for Diarrheal Diseases Research, Dhaka, Bangladesh
| | - Wasif A Khan
- Infectious Diseases Division, International Centre for Diarrheal Diseases Research, Dhaka, Bangladesh
| | - Benedikt Ley
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
| | - Kamala Thriemer
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
| | - Sonam Wangchuck
- Royal Center for Disease Control, Department of Public Health, Ministry of Health, Thimphu, Bhutan
| | - Yaghoob Hamedi
- Infectious and Tropical Diseases Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Hormozgan Province, Iran
| | - Ishag Adam
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Yaobao Liu
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, China
- School of Public Health, Nanjing Medical University, Nanjing, China
| | - Qi Gao
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, China
| | - Kanlaya Sriprawat
- Shoklo Malaria Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Marcelo U Ferreira
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Global Health and Tropical Medicine, Institute of Hygiene and Tropical Medicine, NOVA University of Lisbon, Lisbon, Portugal
| | - Moses Laman
- Papua New Guinea Institute of Medical Research, Madang, Papua New Guinea
| | - Alyssa Barry
- Deakin University, Victoria, Australia
- Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Victoria, Australia
| | - Ivo Mueller
- Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Victoria, Australia
- Department of Parasites and Insect Vectors, Institut Pasteur, Paris, France
| | - Marcus V G Lacerda
- Fundação de Medicina Tropical, Manaus, Brazil
- Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
| | | | | | - Chanthap Lon
- Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | | | | | | | - Fe E J Espino
- Research Institute for Tropical Medicine, Manilla, Philippines
| | - Cindy S Chu
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
- Shoklo Malaria Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Iván D Vélez
- Malaria Group, Universidad de Antioquia, Medellin, Colombia
| | | | | | | | | | - Julian C Rayner
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
- Cambridge Institute for Medical Research, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Eleanor Drury
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Sónia Gonçalves
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Victoria Simpson
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Olivo Miotto
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
| | - Alistair Miles
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Nicholas J White
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Francois Nosten
- Shoklo Malaria Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - Ric N Price
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Sarah Auburn
- Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia.
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand.
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
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11
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Gonçalves S, Félix S, Martins F, Lapenta O, Machado BC, Conceição EM. Food Addiction Problems in College Students: The Relationship between Weight-Related Variables, Eating Habits, and Food Choices. Int J Environ Res Public Health 2022; 19:14588. [PMID: 36361467 PMCID: PMC9658711 DOI: 10.3390/ijerph192114588] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The concept of food addiction, characterized by a strong urge to overeat highly palatable foods, has gained increased research attention over the last decade. College students are a recognized risk group for manifesting an eating pathology and weight gain due to the changes in eating habits experienced during this period. However, there is a gap in the literature connecting food addiction with eating and weight variables in this population. Thus, the present study aims to characterize food addiction in a sample of college students and enlighten the relationship between food addiction, weight-variables, eating habits, and food choices in this population. A sample of 194 college students (89.2% females) aged between 18 and 32 years old (M = 20.85, SD = 2.78) completed a set of self-reported online questionnaires on Google Forms. Namely, a Sociodemographic and Anthropometric Questionnaire, a questionnaire on Food Choices Characterization, the Eating Habits Scale, and the Portuguese Yale Food Addiction Scale 2.0. Thirty (22.2%) participants presented food addiction problems. The logistic regression models utilized suggest that participants in the group with food addiction problems are more likely to seek clinical help to control weight, to consider that they should eat less food high in sugar, and to report lower food adequacy. In sum, this finding highlighted a connection between food addiction, weight dissatisfaction, eating habits, and food choices in college students, a population at risk for developing and retaining eating pathologies. Further research is essential to evaluate and implement interventions regarding food addiction, weight dissatisfaction, eating habits, and food choices in college students.
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Affiliation(s)
- Sónia Gonçalves
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
| | - Sílvia Félix
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
| | - Filipa Martins
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
| | - Olívia Lapenta
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
| | - Bárbara C. Machado
- Research Centre for Human Development (CEDH), Faculty of Education and Psychology, Universidade Católica Portuguesa, 4150-268 Porto, Portugal
| | - Eva M. Conceição
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
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12
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Gonçalves S, Martins IC, Santos NC. Nanoparticle‐peptide conjugates for bacterial detection and neutralization: Potential applications in diagnostics and therapy. WIREs Nanomed Nanobiotechnol 2022; 14:e1819. [DOI: 10.1002/wnan.1819] [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] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 11/24/2022]
Affiliation(s)
- Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa Lisbon Portugal
| | - Ivo C. Martins
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa Lisbon Portugal
| | - Nuno C. Santos
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa Lisbon Portugal
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13
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Martins C, Lima L, Gonçalves S, Assunção R, Serranheira F, Viegas S. Exposure to PM2.5 and cardiovascular diseases in Portugal – the contribute of PMCardImpact project. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac131.163] [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
Particulate matter with a diameter of 2.5 μm or less (PM2.5) are one of the air pollutants more detrimental to human health, being responsible for around 400 000 premature deaths in Europe every year. The cardiovascular diseases (CVD) and air pollution are linked, with existing evidence of a causal relationship between exposure to particulate matter and cardiovascular morbidity and mortality. Under the scope of PMCardImpact, a national funded project, data collected from Portuguese air monitoring platform (2005-2021) (>60 stations) was used to estimate the attributable number of cases of acute myocardial infarction. The air monitoring data and parameters such as exposure-response factors will support the risk assessment in AirQ+ software (WHO Regional Office for Europe). Preliminary results showed that exceedances of Air Quality Directive in Portugal ranged between 0.1 % and 10.2% for PM10 and PM2.5 in 2019. Results obtained will include the number of cases of CVD attributable to exposure to PM2.5 in the Portuguese population. Four scenarios of exposure will be considered for presenting the results: current scenario of exposure, new WHO Air Quality guidelines, European Commission Air Quality Directive and lastly, a worst-case scenario. This assessment will be the starting point for calculation of the burden of disease of CVD that exposure to PM2.5 represent in Portugal. With a view to promote the science to policy interface, PMCardImpact project will make available to policy makers the needed supporting information to act, including actionable knowledge on air pollution trends and related health effects, to implement reducing air pollution policies.
This work is funded by FCT/MCTES through national funds to PMCardImpact (EXPL/SAU-PUB/0944/2021) and CESAM (UIDP/50017/2020 + UIDB/50017/2020 + LA/P/0094/2020).
Key messages
• PMCardImpact will make available to policy makers the needed supporting information to act to implement reducing air pollution policies.
• Risk assessment will allow to determine the number of CVD cases attributable to air pollution.
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Affiliation(s)
- C Martins
- Occupational and Environmental Health, NOVA National School of Public Health, Universidade NOVA de Lisboa , Lisbon, Portugal
- Comprehensive Health Research Center , Lisbon, Portugal
| | - L Lima
- Occupational and Environmental Health, NOVA National School of Public Health, Universidade NOVA de Lisboa , Lisbon, Portugal
| | - S Gonçalves
- Lisbon School of Health Technology, Polytechnic Institute of Lisbon , Lisbon, Portugal
| | - R Assunção
- Centre for Environmental Sciences and Marine Studies , Aveiro, Portugal
- IUEM, Instituto Universitário Egas Moniz , Caparica, Portugal
| | - F Serranheira
- Occupational and Environmental Health, NOVA National School of Public Health, Universidade NOVA de Lisboa , Lisbon, Portugal
- Comprehensive Health Research Center , Lisbon, Portugal
| | - S Viegas
- Occupational and Environmental Health, NOVA National School of Public Health, Universidade NOVA de Lisboa , Lisbon, Portugal
- Comprehensive Health Research Center , Lisbon, Portugal
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14
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Gonçalves S, Moreira CS, Machado BC, Bastos B, Vieira AI. Psychometric properties and convergent and divergent validity of the Portuguese Yale Food Addiction Scale 2.0 (P-YFAS 2.0). Eat Weight Disord 2022; 27:791-801. [PMID: 34053016 DOI: 10.1007/s40519-021-01218-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 05/17/2021] [Indexed: 11/26/2022] Open
Abstract
PURPOSE The construct of food addiction has been gaining increased attention as a research topic. Currently, the Yale Food Addiction Scale 2.0 is the only measure to operationalize the addictive-like eating behavior according to addiction criteria proposed by the Diagnostic and Statistical Manual of Mental Disorders. The present study aimed at examining the psychometric properties of the Portuguese version of the Yale Food Addiction Scale 2.0, as well as investigating the convergent and divergent validity between this scale and the following measures: Eating Disorders Examination Questionnaire, Body Investment Scale, and Difficulties in Emotion Regulation Scale. We also sought to explore the moderator role of difficulties in emotion regulation in the relationship between food addiction and binge eating METHODS: A sample of 302 female college students (Mage = 21.37, SD = 3.24) completed self-report measures. RESULTS Sixteen (5.3%) participants were diagnosed as having food addiction. The confirmatory factor analysis suggested that the original one-dimensional structure is adequate to represent the Portuguese Yale Food Addiction Scale 2.0. The symptom count scores of the scale were correlated with body mass index, eating disordered behavior, body investment, and difficulties in emotion regulation. The severity level of the scale also discriminated the severity of eating disordered behaviors, body investment, and difficulties in emotion regulation. Finally, the relationship between food addiction and binge eating was moderated by difficulties engaging in goal-directed behavior when experiencing negative emotions. CONCLUSION The Portuguese version of the Yale Food Addiction Questionnaire 2.0 may be a useful tool to investigate food addiction. LEVEL IV descriptive studies.
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Affiliation(s)
- Sónia Gonçalves
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, Braga, Portugal.
| | - Célia S Moreira
- Mathematics Department and Center of Mathematics (CMUP), Faculty of Sciences, University of Porto, Porto, Portugal
| | - Bárbara C Machado
- CEDH-Research Centre for Human Development, Faculty of Education and Psychology, Universidade Católica Portuguesa, Porto, Portugal
| | - Beatriz Bastos
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, Braga, Portugal
| | - Ana Isabel Vieira
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, Braga, Portugal
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15
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Barbosa JC, Gonçalves S, Makowski M, Silva ÍC, Caetano T, Schneider T, Mösker E, Süssmuth RD, Santos NC, Mendo S. Insights into the mode of action of the two-peptide lantibiotic lichenicidin. Colloids Surf B Biointerfaces 2022; 211:112308. [PMID: 34973602 DOI: 10.1016/j.colsurfb.2021.112308] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 11/30/2022]
Abstract
Lantibiotics are promising candidates to address the worldwide problem of antibiotic resistance. They belong to a class of natural compounds exhibiting strong activity against clinically relevant Gram-positive bacterial strains, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE). Lichenicidin is a class II two-peptide lantibiotic. The presence of the two mature peptides, Bliα and Bliβ, is necessary for full activity against target bacteria. This work aims at clarifying the synergistic activity of both peptides in their interaction with the target membranes. The effect of lichenicidin was tested against S. aureus cells and large unilamellar vesicles. Lichenicidin increases the net surface charge of S. aureus, as shown by zeta-potential measurements, without reaching electroneutralization. In addition, lichenicidin causes cell surface perturbations that culminate in the leakage of its internal contents, as observed by atomic force microscopy. Bliα seems to have low affinity for S. aureus, however, it contributes to increase the affinity of Bliβ, because together they present higher affinity than separately. In contrast, Bliα seems to provide an anchoring site for lichenicidin in lipid II-containing membranes. Interestingly, Bliβ alone can induce high levels of membrane leakage, but this effect appears to be faster in the presence of Bliα. Based on this information, we propose a mechanism of action of lichenicidin.
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Affiliation(s)
- Joana C Barbosa
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro, Portugal.
| | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon, Portugal.
| | - Marcin Makowski
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon, Portugal.
| | - Ítala C Silva
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon, Portugal.
| | - Tânia Caetano
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro, Portugal.
| | - Tanja Schneider
- Institute for Pharmaceutical Microbiology, University of Bonn, Bonn, Germany.
| | - Eva Mösker
- Institut für Chemie, Technische Universität Berlin, Berlin, Germany.
| | | | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon, Portugal.
| | - Sónia Mendo
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro, Portugal.
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Mendonça L, Sales S, Melo A, Gonçalves S, Pipa A, Nogueira Martins N. 473 Endometrial intraepithelial neoplasm: 8-year audit of a single centre. Eur J Obstet Gynecol Reprod Biol 2022. [DOI: 10.1016/j.ejogrb.2021.11.387] [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: 11/04/2022]
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17
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Sales S, Melo A, Gonçalves S, Nogueira Martins F, Nogueira Martins N. 115 Surgical technique: indocyanine green and infrared fluorescence in sentinel lymph node mapping in endometrial cancer. Eur J Obstet Gynecol Reprod Biol 2022. [DOI: 10.1016/j.ejogrb.2021.11.109] [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: 11/04/2022]
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18
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Omedo I, Bartilol B, Kimani D, Gonçalves S, Drury E, Rono MK, Abdi AI, Almagro-Garcia J, Amato R, Pearson RD, Ochola-Oyier LI, Kwiatkowski D, Bejon P. Spatio-temporal distribution of antimalarial drug resistant gene mutations in a Plasmodium falciparum parasite population from Kilifi, Kenya: A 25-year retrospective study. Wellcome Open Res 2022. [DOI: 10.12688/wellcomeopenres.17656.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Antimalarial drug resistance is a major obstacle to sustainable malaria control. Here we use amplicon sequencing to describe molecular markers of drug resistance in Plasmodium falciparum parasites from Kilifi county in the coastal region of Kenya over a 25-year period. Methods: We performed P. falciparum amplicon sequencing on 1162 malaria-infected blood samples collected between 1994 and 2018 to identify markers of antimalarial drug resistance in the Pfcrt, Pfdhfr, Pfdhps, Pfmdr1, Pfexo, Pfkelch13, plasmepsin 2/3, Pfarps10, Pffd, and Pfmdr2 genes. We further interrogated parasite population structure using a genetic barcode of 101 drug resistance-unrelated single nucleotide polymorphisms (SNPs) distributed across the genomes of 1245 P. falciparum parasites. Results: Two major changes occurred in the parasite population over the 25 years studied. In 1994, approximately 75% of parasites carried the marker of chloroquine resistance, CVIET. This increased to 100% in 1999 and then declined steadily, reaching 6.7% in 2018. Conversely, the quintuple mutation form of sulfadoxine-pyrimethamine resistance increased from 16.7% in 1994 to 83.6% in 2018. Several non-synonymous mutations were identified in the Kelch13 gene, although none of them are currently associated with artemisinin resistance. We observed a temporal increase in the Pfmdr1 NFD haplotype associated with lumefantrine resistance, but observed no evidence of piperaquine resistance. SNPs in other parts of the genome showed no significant temporal changes despite the marked changes in drug resistance loci over this period. Conclusions: We identified substantial changes in molecular markers of P. falciparum drug resistance over 25 years in coastal Kenya, but no associated changes in the parasite population structure.
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Ramalho SM, Trovisqueira A, de Lourdes M, Gonçalves S, Ribeiro I, Vaz AR, Machado PPP, Conceição E. The impact of COVID-19 lockdown on disordered eating behaviors: the mediation role of psychological distress. Eat Weight Disord 2022; 27:179-188. [PMID: 33713336 PMCID: PMC7955211 DOI: 10.1007/s40519-021-01128-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/22/2021] [Indexed: 12/21/2022] Open
Abstract
PURPOSE This study aimed to explore the early associations between the experienced psychosocial impact of the COVID-19 pandemic crisis during lockdown, depressive symptomatology, anxiety/stress levels, and disordered eating behaviors in adults during a first COVID-19 lockdown period. METHODS This was a community-based cross-sectional study assessing 254 Portuguese adults (82.7% women; 35.82 ± 11.82 years) 1 week after the end of the first mandatory COVID-19 lockdown in Portugal. An online survey was conducted to evaluate psychological distress, disordered eating, and psychosocial impact of the COVID-19 pandemic. Pearson correlations and Structural Equation Modeling were performed. RESULTS Participants reported the presence of meal skipping (52.8%), grazing eating behavior (80.9%), overeating (81.0%), loss of control over eating (47.2%), and binge eating episodes (39.2%) during lockdown. Structural equation modeling analyses, controlling for age and sex, indicated that there was a significant indirect effect of the experienced psychosocial impact of COVID-19 pandemic on disordered eating behaviors mediated through psychological distress. CONCLUSION The psychosocial impact of the COVID-19 pandemic crisis may lead to disordered eating, and this relation may occur through the elevation of psychological distress. These findings can be used to inform interventions, to enhance mental health and manage disordered eating during similar future situations. Level of evidence V: cross-sectional descriptive study.
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Affiliation(s)
- Sofia M Ramalho
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal.
| | - Ana Trovisqueira
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Marta de Lourdes
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Sónia Gonçalves
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Inês Ribeiro
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Ana R Vaz
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Paulo P P Machado
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Eva Conceição
- Psychotherapy and Psychopathology Research Unit, Psychology Research Centre, School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
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20
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MARQUES F, Costa C, Gameiro J, Melo M, Gonçalves S, Santana A, Guerra J, Lopes J. POS-779 AGE OF LIVING KIDNEY DONORS: DOES IT MATTER? Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.815] [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: 11/16/2022] Open
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21
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Cardoso MH, Chan LY, Cândido ES, Buccini DF, Rezende SB, Torres MDT, Oshiro KGN, Silva ÍC, Gonçalves S, Lu TK, Santos NC, de la Fuente-Nunez C, Craik DJ, Franco OL. An N-capping asparagine–lysine–proline (NKP) motif contributes to a hybrid flexible/stable multifunctional peptide scaffold. Chem Sci 2022; 13:9410-9424. [PMID: 36093022 PMCID: PMC9383710 DOI: 10.1039/d1sc06998e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 07/10/2022] [Indexed: 11/21/2022] Open
Abstract
Structural diversity drives multiple biological activities and mechanisms of action in linear peptides. Here we describe an unusual N-capping asparagine-lysine-proline (NKP) motif that confers a hybrid multifunctional scaffold to a computationally designed peptide (PaDBS1R7). PaDBS1R7 has a shorter α-helix segment than other computationally designed peptides of similar sequence but with key residue substitutions. Although this motif acts as an α-helix breaker in PaDBS1R7, the Asn5 presents exclusive N-capping effects, forming a belt to establish hydrogen bonds for an amphipathic α-helix stabilization. The combination of these different structural profiles was described as a coil/N-cap/α-helix scaffold, which was also observed in diverse computational peptide mutants. Biological studies revealed that all peptides displayed antibacterial activities. However, only PaDBS1R7 displayed anticancer properties, eradicated Pseudomonas aeruginosa biofilms, decreased bacterial counts by 100–1000-fold in vivo, reduced lipopolysaccharide-induced macrophages stress, and stimulated fibroblast migration for wound healing. This study extends our understanding of an N-capping NKP motif to engineering hybrid multifunctional peptide drug candidates with potent anti-infective and immunomodulatory properties. An unusual N-capping asparagine-lysine-proline (5NKP7) motif yields a coil/N-cap/α-helix multifunctional scaffold in a computer-made peptide selective for anionic surfaces and with anticancer, antibacterial, antibiofilm, anti-infective (in vivo), and immunomodulatory potential.![]()
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Affiliation(s)
- Marlon H. Cardoso
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000, Campo Grande – MS, 79117900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN 916 Módulo B, Asa Norte, Brasília – DF, 70790160, Brazil
- Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, Campus Darcy Ribeiro, Asa Norte, Brasília – DF, 70910900, Brazil
- Instituto de Biociências (INBIO), Universidade Federal de Mato Grosso do Sul, Cidade Universitária, 79070900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Lai Y. Chan
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Elizabete S. Cândido
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000, Campo Grande – MS, 79117900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN 916 Módulo B, Asa Norte, Brasília – DF, 70790160, Brazil
| | - Danieli F. Buccini
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000, Campo Grande – MS, 79117900, Brazil
| | - Samilla B. Rezende
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000, Campo Grande – MS, 79117900, Brazil
| | - Marcelo D. T. Torres
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Karen G. N. Oshiro
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000, Campo Grande – MS, 79117900, Brazil
- Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, Campus Darcy Ribeiro, Asa Norte, Brasília – DF, 70910900, Brazil
| | - Ítala C. Silva
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Timothy K. Lu
- Synthetic Biology Group, MIT Synthetic Biology Center, The Center for Microbiome Informatics and Therapeutics, Research Laboratory of Electronics, Department of Biological Engineering, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge – MA, 02139, USA
| | - Nuno C. Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - David J. Craik
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Octávio L. Franco
- S-Inova Biotech, Programa de Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco Avenida Tamandaré 6000, Campo Grande – MS, 79117900, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN 916 Módulo B, Asa Norte, Brasília – DF, 70790160, Brazil
- Programa de Pós-Graduação em Patologia Molecular, Faculdade de Medicina, Universidade de Brasília, Campus Darcy Ribeiro, Asa Norte, Brasília – DF, 70910900, Brazil
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22
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Band G, Leffler EM, Jallow M, Sisay-Joof F, Ndila CM, Macharia AW, Hubbart C, Jeffreys AE, Rowlands K, Nguyen T, Gonçalves S, Ariani CV, Stalker J, Pearson RD, Amato R, Drury E, Sirugo G, d'Alessandro U, Bojang KA, Marsh K, Peshu N, Saelens JW, Diakité M, Taylor SM, Conway DJ, Williams TN, Rockett KA, Kwiatkowski DP. Malaria protection due to sickle haemoglobin depends on parasite genotype. Nature 2021; 602:106-111. [PMID: 34883497 PMCID: PMC8810385 DOI: 10.1038/s41586-021-04288-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 03/30/2021] [Accepted: 11/29/2021] [Indexed: 11/30/2022]
Abstract
Host genetic factors can confer resistance against malaria1, raising the question of whether this has led to evolutionary adaptation of parasite populations. Here we searched for association between candidate host and parasite genetic variants in 3,346 Gambian and Kenyan children with severe malaria caused by Plasmodium falciparum. We identified a strong association between sickle haemoglobin (HbS) in the host and three regions of the parasite genome, which is not explained by population structure or other covariates, and which is replicated in additional samples. The HbS-associated alleles include nonsynonymous variants in the gene for the acyl-CoA synthetase family member2–4PfACS8 on chromosome 2, in a second region of chromosome 2, and in a region containing structural variation on chromosome 11. The alleles are in strong linkage disequilibrium and have frequencies that covary with the frequency of HbS across populations, in particular being much more common in Africa than other parts of the world. The estimated protective effect of HbS against severe malaria, as determined by comparison of cases with population controls, varies greatly according to the parasite genotype at these three loci. These findings open up a new avenue of enquiry into the biological and epidemiological significance of the HbS-associated polymorphisms in the parasite genome and the evolutionary forces that have led to their high frequency and strong linkage disequilibrium in African P. falciparum populations. A strong association has been found between three regions of the Plasmodium falciparum genome and sickle haemoglobin in children with severe malaria, suggesting parasites have adapted to overcome natural host immunity.
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Affiliation(s)
- Gavin Band
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, UK. .,Wellcome Sanger Institute, Hinxton, Cambridge, UK. .,Big Data Institute, Li Ka Shing Centre for Health and Information Discovery, Old Road Campus, Oxford, USA.
| | - Ellen M Leffler
- Wellcome Sanger Institute, Hinxton, Cambridge, UK.,Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Muminatou Jallow
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, The Gambia.,Edward Francis Small Teaching Hospital (formerly Royal Victoria Teaching Hospital), Independence Drive, Banjul, The Gambia
| | - Fatoumatta Sisay-Joof
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, The Gambia
| | - Carolyne M Ndila
- KEMRI-Wellcome Trust Research Programme, PO Box 230, Kilifi, Kenya
| | | | - Christina Hubbart
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, UK
| | - Anna E Jeffreys
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, UK
| | - Kate Rowlands
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, UK
| | - Thuy Nguyen
- Wellcome Sanger Institute, Hinxton, Cambridge, UK
| | | | | | - Jim Stalker
- Wellcome Sanger Institute, Hinxton, Cambridge, UK
| | - Richard D Pearson
- Wellcome Sanger Institute, Hinxton, Cambridge, UK.,Big Data Institute, Li Ka Shing Centre for Health and Information Discovery, Old Road Campus, Oxford, USA
| | | | | | - Giorgio Sirugo
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, The Gambia.,Division of Translational Medicine and Human Genetics, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Umberto d'Alessandro
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, The Gambia
| | - Kalifa A Bojang
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, The Gambia
| | - Kevin Marsh
- KEMRI-Wellcome Trust Research Programme, PO Box 230, Kilifi, Kenya.,Nuffield Department of Medicine, NDM Research Building, Roosevelt Drive, Headington, Oxford, UK
| | - Norbert Peshu
- KEMRI-Wellcome Trust Research Programme, PO Box 230, Kilifi, Kenya
| | - Joseph W Saelens
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, USA
| | - Mahamadou Diakité
- Malaria Research and Training Center, University of Sciences, Techniques, and Technologies of Bamako, Bamako, Mali
| | - Steve M Taylor
- Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, USA.,Duke Global Health Institute, Duke University, Durham, NC, USA
| | - David J Conway
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, The Gambia.,Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London, UK
| | - Thomas N Williams
- KEMRI-Wellcome Trust Research Programme, PO Box 230, Kilifi, Kenya.,Institute for Global Health Innovation, Department of Surgery and Cancer, Imperial College, London, London, UK
| | - Kirk A Rockett
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, UK. .,Wellcome Sanger Institute, Hinxton, Cambridge, UK.
| | - Dominic P Kwiatkowski
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, UK. .,Wellcome Sanger Institute, Hinxton, Cambridge, UK. .,Big Data Institute, Li Ka Shing Centre for Health and Information Discovery, Old Road Campus, Oxford, USA.
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23
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Gonçalves S, Monteiro F, Neto R, Machado M, Lencart J, Dias A. Case study: 3D rapid manufactured bolus for breast cancer treatment with external beam radiotherapy. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00343-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Hamaluba M, van der Pluijm RW, Weya J, Njuguna P, Ngama M, Kalume P, Mwambingu G, Ngetsa C, Wambua J, Boga M, Mturi N, Lal AA, Khuroo A, Taylor WRJ, Gonçalves S, Miotto O, Dhorda M, Mutinda B, Mukaka M, Waithira N, Hoglund RM, Imwong M, Tarning J, Day NPJ, White NJ, Bejon P, Dondorp AM. Arterolane-piperaquine-mefloquine versus arterolane-piperaquine and artemether-lumefantrine in the treatment of uncomplicated Plasmodium falciparum malaria in Kenyan children: a single-centre, open-label, randomised, non-inferiority trial. Lancet Infect Dis 2021; 21:1395-1406. [PMID: 34111412 PMCID: PMC8461080 DOI: 10.1016/s1473-3099(20)30929-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 10/01/2020] [Revised: 11/04/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Triple antimalarial combination therapies combine potent and rapidly cleared artemisinins or related synthetic ozonides, such as arterolane, with two, more slowly eliminated partner drugs to reduce the risk of resistance. We aimed to assess the safety, tolerability, and efficacy of arterolane-piperaquine-mefloquine versus arterolane-piperaquine and artemether-lumefantrine for the treatment of uncomplicated falciparum malaria in Kenyan children. METHODS In this single-centre, open-label, randomised, non-inferiority trial done in Kilifi County Hospital, Kilifi, coastal Kenya, children with uncomplicated Plasmodium falciparum malaria were recruited. Eligible patients were aged 2-12 years and had an asexual parasitaemia of 5000-250 000 parasites per μL. The exclusion criteria included the presence of an acute illness other than malaria, the inability to tolerate oral medications, treatment with an artemisinin derivative in the previous 7 days, a known hypersensitivity or contraindication to any of the study drugs, and a QT interval corrected for heart rate (QTc interval) longer than 450 ms. Patients were randomly assigned (1:1:1), by use of blocks of six, nine, and 12, and opaque, sealed, and sequentially numbered envelopes, to receive either arterolane-piperaquine, arterolane-piperaquine-mefloquine, or artemether-lumefantrine. Laboratory staff, but not the patients, the patients' parents or caregivers, clinical or medical officers, nurses, or trial statistician, were masked to the intervention groups. For 3 days, oral artemether-lumefantrine was administered twice daily (target dose 5-24 mg/kg of bodyweight of artemether and 29-144 mg/kg of bodyweight of lumefantrine), and oral arterolane-piperaquine (arterolane dose 4 mg/kg of bodyweight; piperaquine dose 20 mg/kg of bodyweight) and oral arterolane-piperaquine-mefloquine (mefloquine dose 8 mg/kg of bodyweight) were administered once daily. All patients received 0·25 mg/kg of bodyweight of oral primaquine at hour 24. All patients were admitted to Kilifi County Hospital for at least 3 consecutive days and followed up at day 7 and, thereafter, weekly for up to 42 days. The primary endpoint was 42-day PCR-corrected efficacy, defined as the absence of treatment failure in the first 42 days post-treatment, of arterolane-piperaquine-mefloquine versus artemether-lumefantrine, and, along with safety, was analysed in the intention-to-treat population, which comprised all patients who received at least one dose of a study drug. The 42-day PCR-corrected efficacy of arterolane-piperaquine-mefloquine versus arterolane-piperaquine was an important secondary endpoint and was also analysed in the intention-to-treat population. The non-inferiority margin for the risk difference between treatments was -7%. The study is registered in ClinicalTrials.gov, NCT03452475, and is completed. FINDINGS Between March 7, 2018, and May 2, 2019, 533 children with P falciparum were screened, of whom 217 were randomly assigned to receive either arterolane-piperaquine (n=73), arterolane-piperaquine-mefloquine (n=72), or artemether-lumefantrine (n=72) and comprised the intention-to-treat population. The 42-day PCR-corrected efficacy after treatment with arterolane-piperaquine-mefloquine (100%, 95% CI 95-100; 72/72) was non-inferior to that after treatment with artemether-lumefantrine (96%, 95% CI 88-99; 69/72; risk difference 4%, 95% CI 0-9; p=0·25). The 42-day PCR-corrected efficacy of arterolane-piperaquine-mefloquine was non-inferior to that of arterolane-piperaquine (100%, 95% CI 95-100; 73/73; risk difference 0%). Vomiting rates in the first hour post-drug administration were significantly higher in patients treated with arterolane-piperaquine (5%, 95% CI 2-9; ten of 203 drug administrations; p=0·0013) or arterolane-piperaquine-mefloquine (5%, 3-9; 11 of 209 drug administrations; p=0·0006) than in patients treated with artemether-lumefantrine (1%, 0-2; three of 415 drug administrations). Upper respiratory tract complaints (n=26 for artemether-lumefantrine; n=19 for arterolane-piperaquine-mefloquine; n=23 for arterolane-piperaquine), headache (n=13; n=4; n=5), and abdominal pain (n=7; n=5; n=5) were the most frequently reported adverse events. There were no deaths. INTERPRETATION This study shows that arterolane-piperaquine-mefloquine is an efficacious and safe treatment for uncomplicated falciparum malaria in children and could potentially be used to prevent or delay the emergence of antimalarial resistance. FUNDING UK Department for International Development, The Wellcome Trust, The Bill & Melinda Gates Foundation, Sun Pharmaceutical Industries.
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Affiliation(s)
- Mainga Hamaluba
- KEMRI Wellcome Trust Research Programme, Kilifi, Kenya; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
| | - Rob W van der Pluijm
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Joseph Weya
- KEMRI Wellcome Trust Research Programme, Kilifi, Kenya
| | - Patricia Njuguna
- KEMRI Wellcome Trust Research Programme, Kilifi, Kenya; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - Peter Kalume
- KEMRI Wellcome Trust Research Programme, Kilifi, Kenya
| | | | | | | | | | - Neema Mturi
- KEMRI Wellcome Trust Research Programme, Kilifi, Kenya
| | - Altaf A Lal
- Sun Pharmaceutical Industries, Gurugram, India
| | | | - Walter R J Taylor
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | - Olivo Miotto
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Wellcome Sanger Institute, Hinxton, UK
| | - Mehul Dhorda
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Asia-Pacific Regional Centre, WorldWide Antimalarial Resistance Network, Bangkok, Thailand
| | - Brian Mutinda
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Mavuto Mukaka
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Naomi Waithira
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Richard M Hoglund
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Mallika Imwong
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Joel Tarning
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nicholas P J Day
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nicholas J White
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Philip Bejon
- KEMRI Wellcome Trust Research Programme, Kilifi, Kenya; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Arjen M Dondorp
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
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25
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Tonkin-Hill G, Martincorena I, Amato R, Lawson ARJ, Gerstung M, Johnston I, Jackson DK, Park N, Lensing SV, Quail MA, Gonçalves S, Ariani C, Spencer Chapman M, Hamilton WL, Meredith LW, Hall G, Jahun AS, Chaudhry Y, Hosmillo M, Pinckert ML, Georgana I, Yakovleva A, Caller LG, Caddy SL, Feltwell T, Khokhar FA, Houldcroft CJ, Curran MD, Parmar S, Alderton A, Nelson R, Harrison EM, Sillitoe J, Bentley SD, Barrett JC, Torok ME, Goodfellow IG, Langford C, Kwiatkowski D. Patterns of within-host genetic diversity in SARS-CoV-2. eLife 2021; 10:e66857. [PMID: 34387545 PMCID: PMC8363274 DOI: 10.7554/elife.66857] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 07/22/2021] [Indexed: 12/15/2022] Open
Abstract
Monitoring the spread of SARS-CoV-2 and reconstructing transmission chains has become a major public health focus for many governments around the world. The modest mutation rate and rapid transmission of SARS-CoV-2 prevents the reconstruction of transmission chains from consensus genome sequences, but within-host genetic diversity could theoretically help identify close contacts. Here we describe the patterns of within-host diversity in 1181 SARS-CoV-2 samples sequenced to high depth in duplicate. 95.1% of samples show within-host mutations at detectable allele frequencies. Analyses of the mutational spectra revealed strong strand asymmetries suggestive of damage or RNA editing of the plus strand, rather than replication errors, dominating the accumulation of mutations during the SARS-CoV-2 pandemic. Within- and between-host diversity show strong purifying selection, particularly against nonsense mutations. Recurrent within-host mutations, many of which coincide with known phylogenetic homoplasies, display a spectrum and patterns of purifying selection more suggestive of mutational hotspots than recombination or convergent evolution. While allele frequencies suggest that most samples result from infection by a single lineage, we identify multiple putative examples of co-infection. Integrating these results into an epidemiological inference framework, we find that while sharing of within-host variants between samples could help the reconstruction of transmission chains, mutational hotspots and rare cases of superinfection can confound these analyses.
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Affiliation(s)
| | | | | | | | | | | | | | - Naomi Park
- Wellcome Sanger InstituteHinxtonUnited Kingdom
| | | | | | | | | | | | | | - Luke W Meredith
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Grant Hall
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Aminu S Jahun
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Yasmin Chaudhry
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Myra Hosmillo
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Malte L Pinckert
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Iliana Georgana
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Anna Yakovleva
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Laura G Caller
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Sarah L Caddy
- Department of Medicine, University of CambridgeCambridgeUnited Kingdom
| | - Theresa Feltwell
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | - Fahad A Khokhar
- Department of Medicine, University of CambridgeCambridgeUnited Kingdom
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of CambridgeCambridgeUnited Kingdom
| | | | | | | | | | | | | | - Ewan M Harrison
- Wellcome Sanger InstituteHinxtonUnited Kingdom
- European Bioinformatics InstituteHinxtonUnited Kingdom
| | | | | | | | - M Estee Torok
- Department of Medicine, University of CambridgeCambridgeUnited Kingdom
| | - Ian G Goodfellow
- Department of Pathology, University of CambridgeCambridgeUnited Kingdom
| | | | - Dominic Kwiatkowski
- Wellcome Sanger InstituteHinxtonUnited Kingdom
- Nuffield Department of Medicine, University of OxfordOxfordUnited Kingdom
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26
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Félix S, Ramalho S, Ribeiro E, Pinheiro J, de Lourdes M, Gonçalves S, Conceição E. Experiences of parent-adolescent dyads regarding a Facebook-based intervention to improve overweight/obesity treatment in adolescents: A qualitative study. Appl Psychol Health Well Being 2021; 14:122-139. [PMID: 34286907 DOI: 10.1111/aphw.12294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 06/30/2021] [Indexed: 11/27/2022]
Abstract
APOLO-Teens is a Facebook-based psychological intervention aiming to optimize hospital treatment for adolescents with overweight/obesity. The present qualitative study aims to explore (1) how adolescents experienced participation in APOLO-Teens and (2) how parents perceived adolescents' participation. Sixteen adolescent-parent dyads were interviewed by telephone using semistructured guides. An inductive approach of thematic analysis was used to analyze data by two independent codifiers. The consensus was used to resolve differences in coding/themes, and two independent auditors reviewed the codes and the themes proposed. We identified four themes from adolescents' interviews, namely, expectations, perception of outcomes, participation in the intervention, and sharing of acquired knowledge. From parents' interviews, we identified five themes: expectations for son/daughter participation, perception of adolescents' outcomes, son/daughter participation, parental role, and use of social networks in intervention programs for adolescents. Both elements of the dyad indicated that adolescents' participation in APOLO-Teens contributed to favorable outcomes, further highlighting the use of online interventions to complement the hospital treatment of adolescents with overweight/obesity. Future studies should address the viewpoints of adolescents and parents in the design of Facebook-based interventions, namely, to implement tailored, shorter, less time-demanding interventions that favor engagement between participants and parental involvement.
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Affiliation(s)
- Sílvia Félix
- Psychotherapy and Psychopathology Research Unit-Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
| | - Sofia Ramalho
- Psychotherapy and Psychopathology Research Unit-Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
| | - Eugénia Ribeiro
- Psychotherapy and Psychopathology Research Unit-Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
| | - Joana Pinheiro
- Psychotherapy and Psychopathology Research Unit-Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
| | - Marta de Lourdes
- Psychotherapy and Psychopathology Research Unit-Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
| | - Sónia Gonçalves
- Psychotherapy and Psychopathology Research Unit-Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
| | - Eva Conceição
- Psychotherapy and Psychopathology Research Unit-Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
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27
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Nicholls SM, Poplawski R, Bull MJ, Underwood A, Chapman M, Abu-Dahab K, Taylor B, Colquhoun RM, Rowe WPM, Jackson B, Hill V, O'Toole Á, Rey S, Southgate J, Amato R, Livett R, Gonçalves S, Harrison EM, Peacock SJ, Aanensen DM, Rambaut A, Connor TR, Loman NJ. CLIMB-COVID: continuous integration supporting decentralised sequencing for SARS-CoV-2 genomic surveillance. Genome Biol 2021; 22:196. [PMID: 34210356 PMCID: PMC8247108 DOI: 10.1186/s13059-021-02395-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 05/28/2021] [Indexed: 12/15/2022] Open
Abstract
In response to the ongoing SARS-CoV-2 pandemic in the UK, the COVID-19 Genomics UK (COG-UK) consortium was formed to rapidly sequence SARS-CoV-2 genomes as part of a national-scale genomic surveillance strategy. The network consists of universities, academic institutes, regional sequencing centres and the four UK Public Health Agencies. We describe the development and deployment of CLIMB-COVID, an encompassing digital infrastructure to address the challenge of collecting and integrating both genomic sequencing data and sample-associated metadata produced across the COG-UK network.
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Affiliation(s)
- Samuel M Nicholls
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - Radoslaw Poplawski
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - Matthew J Bull
- Pathogen Genomics Unit, Public Health Wales NHS Trust, Cardiff, UK
| | - Anthony Underwood
- Centre for Genomic Pathogen Surveillance, Wellcome Genome Campus, Hinxton, UK
- Oxford Big Data Institute, Old Road Campus, Oxford, UK
| | - Michael Chapman
- Health Data Research UK Cambridge, Wellcome Genome Campus, Hinxton, UK
| | - Khalil Abu-Dahab
- Centre for Genomic Pathogen Surveillance, Wellcome Genome Campus, Hinxton, UK
- Oxford Big Data Institute, Old Road Campus, Oxford, UK
| | - Ben Taylor
- Centre for Genomic Pathogen Surveillance, Wellcome Genome Campus, Hinxton, UK
- Oxford Big Data Institute, Old Road Campus, Oxford, UK
| | - Rachel M Colquhoun
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Will P M Rowe
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - Ben Jackson
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Verity Hill
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Áine O'Toole
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Sara Rey
- Pathogen Genomics Unit, Public Health Wales NHS Trust, Cardiff, UK
| | - Joel Southgate
- School of Biosciences, The Sir Martin Evans Building, Cardiff University, Cardiff, UK
| | | | | | | | - Ewan M Harrison
- Wellcome Sanger Institute, Hinxton, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | | | - David M Aanensen
- Centre for Genomic Pathogen Surveillance, Wellcome Genome Campus, Hinxton, UK
- Oxford Big Data Institute, Old Road Campus, Oxford, UK
| | - Andrew Rambaut
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Thomas R Connor
- Pathogen Genomics Unit, Public Health Wales NHS Trust, Cardiff, UK
- School of Biosciences, The Sir Martin Evans Building, Cardiff University, Cardiff, UK
- Quadram Institute, Norwich, UK
| | - Nicholas J Loman
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK.
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Oliveira JT, Faustino D, Freitas F, Gonçalves MM, Ribeiro E, Gonçalves S, Machado PPP. Penn State Worry Questionnaire in emotional disorders: validation and normative data for Portuguese population. British Journal of Guidance & Counselling 2021. [DOI: 10.1080/03069885.2021.1897969] [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: 10/21/2022]
Affiliation(s)
- João Tiago Oliveira
- CIPsi - Psychology Research Center, School of Psychology, University of Minho, Minho, Portugal
| | - Divo Faustino
- CIPsi - Psychology Research Center, School of Psychology, University of Minho, Minho, Portugal
| | - Fátima Freitas
- CIPsi - Psychology Research Center, School of Psychology, University of Minho, Minho, Portugal
| | - Miguel M. Gonçalves
- CIPsi - Psychology Research Center, School of Psychology, University of Minho, Minho, Portugal
| | - Eugénia Ribeiro
- CIPsi - Psychology Research Center, School of Psychology, University of Minho, Minho, Portugal
| | - Sónia Gonçalves
- CIPsi - Psychology Research Center, School of Psychology, University of Minho, Minho, Portugal
| | - Paulo P. P. Machado
- CIPsi - Psychology Research Center, School of Psychology, University of Minho, Minho, Portugal
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29
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Vieira AI, Rodrigues TF, Brandão I, Timóteo S, Nunes P, Gonçalves S. Group-based intervention for eating disorders with non-suicidal-self-injury: a case series. CLIN PSYCHOL-UK 2021. [DOI: 10.1080/13284207.2021.1892454] [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: 10/21/2022]
Affiliation(s)
- Ana Isabel Vieira
- Psychology Research Center (Cipsi), School of Psychology, University of Minho, Braga, Portugal
| | - Tânia F. Rodrigues
- Psychology Research Center (Cipsi), School of Psychology, University of Minho, Braga, Portugal
| | - Isabel Brandão
- Department of Psychiatry, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Sertório Timóteo
- Department of Psychiatry, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Patrícia Nunes
- Department of Psychiatry, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Sónia Gonçalves
- Psychology Research Center (Cipsi), School of Psychology, University of Minho, Braga, Portugal
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Felício MR, Silveira GGOS, Oshiro KGN, Meneguetti BT, Franco OL, Santos NC, Gonçalves S. Polyalanine peptide variations may have different mechanisms of action against multidrug-resistant bacterial pathogens. J Antimicrob Chemother 2021; 76:1174-1186. [PMID: 33501992 DOI: 10.1093/jac/dkaa560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 12/15/2020] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The number of bacterial pathogens resistant to the currently available antibiotics has dramatically increased, with antimicrobial peptides (AMPs) being among the most promising potential new drugs. In this study, the applicability and mechanisms of action of Pa-MAP 2 and Pa-MAP 1.9, two AMPs synthetically designed based on a natural AMP template, were evaluated. METHODS Pa-MAP 2 and Pa-MAP 1.9 were tested against a clinically isolated multidrug-resistant (MDR) Escherichia coli strain. Biophysical approaches were used to evaluate the preference of both peptides for specific lipid membranes, and bacterial surface changes imaged by atomic force microscopy (AFM). The efficacy of both peptides was assessed both in vitro and in vivo. RESULTS Experimental results showed that both peptides have antimicrobial activity against the E. coli MDR strain. Zeta potential and surface plasmon resonance assays showed that they interact extensively with negatively charged membranes, changing from a random coil structure, when free in solution, to an α-helical structure after membrane interaction. The antibacterial efficacy was evaluated in vitro, by several techniques, and in vivo, using a wound infection model, showing a concentration-dependent antibacterial effect. Different membrane properties were evaluated to understand the mechanism underlying peptide action, showing that both promote destabilization of the bacterial surface, as imaged by AFM, and change properties such as membrane surface and dipole potential. CONCLUSIONS Despite their similarity, data indicate that the mechanisms of action of the peptides are different, with Pa-MAP 1.9 being more effective than Pa-MAP 2. These results highlight their potential use as antimicrobial agents against MDR bacteria.
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Affiliation(s)
- Mário R Felício
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Gislaine G O S Silveira
- S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - Karen G N Oshiro
- S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
- Programa de Pós-Graduação em Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil
| | - Beatriz T Meneguetti
- S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - Octávio L Franco
- S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
- Programa de Pós-Graduação em Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal
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Conceição EM, Pinheiro J, Félix S, Ramalho S, Gonçalves S. Grazing in children: associations with child's characteristics and parental feeding practices. Eat Weight Disord 2021; 26:439-447. [PMID: 32060806 DOI: 10.1007/s40519-020-00866-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/01/2020] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Grazing is a problematic eating behavior linked with poor weight loss outcomes, disordered eating psychopathology, and psychological distress in the adult population. However, no study assessed this behavior in children. Childhood is an important time frame for the development and maintenance of healthy eating habits, which can be influenced by children's psychological state, eating habits, and parental practices. This study investigates the associations between grazing behavior in children and children's psychological variables (anxiety, depression and withdrawn symptoms, body image dissatisfaction), children eating habits, and parental feeding practices. METHODS In this cross-sectional study, 330 primary school students (6-10 years old) and their parents completed measures assessing children's grazing, anxiety/depression and withdrawn symptoms, body image dissatisfaction, children eating habits and style, and parental feeding practices. RESULTS The path analysis tested showed that more restrictive parental feeding practices, inappropriate children eating habits, children's anxiety/depression symptoms, and body image dissatisfaction were associated with increased grazing scores (CMIN = 12.679; DF = 11; p = 0.315; RMSEA = 0.025; CFI = 0.990; NFI = 0.935; TLI = 0.982; IFI = 0.991; SRMR = 0.045). CONCLUSION Grazing tends to occur in a context of children's psychological distress, inappropriate children eating habits, and restrictive parental feeding practices. These variables should be addressed for the improvement of healthy eating habits and in weight-loss interventions for children. LEVEL OF EVIDENCE Level V, cross-sectional descriptive study.
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Affiliation(s)
- Eva M Conceição
- School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal.
| | - Joana Pinheiro
- School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Sílvia Félix
- School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Sofia Ramalho
- School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - Sónia Gonçalves
- School of Psychology, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
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Lapière J, Christen C, Kerouani-Lafaye G, Monard A, Turcry F, Grude F, Gazin V, Burbank M, Chocarne P, Taleb A, Belgodere L, Brunel L, Chu C, Deligny C, Ake E, Gonçalves S, Bouheret P, Barbou-des-Courières S, Sainte-Marie I, Guyader G, Boudali L, Albin N. Evaluation of Clinical Trials in Onco-haematology: A New Method Based on Risk Analysis and Multidisciplinarity. Ther Innov Regul Sci 2021; 55:601-611. [PMID: 33502745 DOI: 10.1007/s43441-020-00256-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 12/30/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND European member states are increasingly vying with one another to recruit patients for clinical trials (CTs). The French national agency for medicines (ANSM) now receives an ever-growing number of CTs, extending response times. The aim of the new methodology presented herein is to reduce assessment times below the national mandatory timeframe of 60 days and to improve patient safety. MATERIALS AND METHODS Based on an analysis of the criteria defining CTs, 4 key points were identified (safety, fragile population, loss of opportunity, design complexity) to build a criticality score which would determine evaluation type. This score also determines the resources needed (complete evaluation, multidisciplinary advice, ad hoc evaluation) and the timeframe required for appropriate analysis. All post-phase I CTs were analysed from the implementation of the new assessment method, on 01/02/2018 through to 31/12/2019. RESULTS 447 CTs were analysed (63% industry and 37% academic sponsors). Based on a criticality scale, 27% of the CTs received a type A evaluation (complete), 37% a type B (multidisciplinary evaluation), 23% a type C evaluation (ad hoc evaluation) and 13% a type D evaluation (fast evaluation). From 2014 to 2017, 37% of the CTs were analysed within the mandatory timeframe, with a mean of 68 days, reaching a maximum of 102 days in 2017. Using this new assessment method, 92% of CTs respected the mandatory timeframe in 2019; the mean time in 2018-2019 was 34 days; Grounds for Non-Acceptance (GNA) were raised for 66% of the CTs (69% from academic sponsors and 65% from industrial firms). 3 CTs were refused. CONCLUSION Here, we demonstrate the feasibility of risk analysis and multidisciplinarity method, which resulted in a dramatic improvement of assessment times.
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Affiliation(s)
- J Lapière
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France
| | - C Christen
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - G Kerouani-Lafaye
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - A Monard
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France
| | - F Turcry
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - F Grude
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - V Gazin
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - M Burbank
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - P Chocarne
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - A Taleb
- Groupe Hospitalier Sud Ile de France, Melun, France
| | - L Belgodere
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - L Brunel
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - C Chu
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - C Deligny
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - E Ake
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - S Gonçalves
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - P Bouheret
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France
| | - S Barbou-des-Courières
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - I Sainte-Marie
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - G Guyader
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - L Boudali
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - N Albin
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France.
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France.
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Makowski M, Felício MR, Fensterseifer ICM, Franco OL, Santos NC, Gonçalves S. EcDBS1R4, an Antimicrobial Peptide Effective against Escherichia coli with In Vitro Fusogenic Ability. Int J Mol Sci 2020; 21:ijms21239104. [PMID: 33265989 PMCID: PMC7730630 DOI: 10.3390/ijms21239104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 11/02/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 01/18/2023] Open
Abstract
Discovering antibiotic molecules able to hold the growing spread of antimicrobial resistance is one of the most urgent endeavors that public health must tackle. The case of Gram-negative bacterial pathogens is of special concern, as they are intrinsically resistant to many antibiotics, due to an outer membrane that constitutes an effective permeability barrier. Antimicrobial peptides (AMPs) have been pointed out as potential alternatives to conventional antibiotics, as their main mechanism of action is membrane disruption, arguably less prone to elicit resistance in pathogens. Here, we investigate the in vitro activity and selectivity of EcDBS1R4, a bioinspired AMP. To this purpose, we have used bacterial cells and model membrane systems mimicking both the inner and the outer membranes of Escherichia coli, and a variety of optical spectroscopic methodologies. EcDBS1R4 is effective against the Gram-negative E. coli, ineffective against the Gram-positive Staphylococcus aureus and noncytotoxic for human cells. EcDBS1R4 does not form stable pores in E. coli, as the peptide does not dissipate its membrane potential, suggesting an unusual mechanism of action. Interestingly, EcDBS1R4 promotes a hemi-fusion of vesicles mimicking the inner membrane of E. coli. This fusogenic ability of EcDBS1R4 requires the presence of phospholipids with a negative curvature and a negative charge. This finding suggests that EcDBS1R4 promotes a large lipid spatial reorganization able to reshape membrane curvature, with interesting biological implications herein discussed.
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Affiliation(s)
- Marcin Makowski
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; (M.M.); (M.R.F.)
| | - Mário R. Felício
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; (M.M.); (M.R.F.)
| | - Isabel C. M. Fensterseifer
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília 71966-700, Brazil; (I.C.M.F.); (O.L.F.)
- S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande 79117-010, Brazil
| | - Octávio L. Franco
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília 71966-700, Brazil; (I.C.M.F.); (O.L.F.)
- S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande 79117-010, Brazil
| | - Nuno C. Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; (M.M.); (M.R.F.)
- Correspondence: (N.C.S.); (S.G.)
| | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; (M.M.); (M.R.F.)
- Correspondence: (N.C.S.); (S.G.)
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Machado PPP, Pinto-Bastos A, Ramos R, Rodrigues TF, Louro E, Gonçalves S, Brandão I, Vaz A. Impact of COVID-19 lockdown measures on a cohort of eating disorders patients. J Eat Disord 2020; 8:57. [PMID: 33292539 PMCID: PMC7831249 DOI: 10.1186/s40337-020-00340-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 10/14/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Lockdown implemented to prevent the COVID-19 spread resulted in marked changes in the lifestyle. The objective of the current study was to assess the impact of lockdown measures on a cohort of eating disorder (ED) patients being followed as part of an ongoing naturalistic treatment study. METHODS Ninety-nine patients aged 18 or older, currently or previously, in treatment at a Portuguese specialized hospital unit were contacted by phone and invited to participate in the current survey. Fifty-nine agreed to be interviewed by phone, and 43 agreed to respond to a set of self-report measures of ED symptoms, emotion regulation difficulties, clinical impairment, negative urgency, and COVID-19 impact, during the week after the end of the lockdown period. RESULTS Data showed that of the 26 patients currently in treatment: 8 remained unchanged (31%), 7 deteriorated (27%), and 11 reliably improved (42%). Of the 17 participants not currently in treatment: 3 deteriorated (18%), 9 remained unchanged (53%), and 5 (29%) improved after the lockdown period. The Coronavirus Impact Scale showed that most patients considered their routines moderately or extremely impacted, experienced stress related to coronavirus, and showed difficulty in maintaining physical exercise and feeding routines. Results suggest that higher impact of COVID-19 lockdown was significantly correlated with eating disorder symptoms and associated psychopathology, impulsivity, difficulties in emotion regulation and clinical impairment measured at post-lockdown. In addition, the impact of COVID-19 and lockdown measures on clinical impairment was mediated by difficulties in emotion regulation. CONCLUSIONS Findings suggest that some ED patients may experience worsening of their condition, especially if associated with difficulties in emotion regulation, and these difficulties might be exacerbated in the context of a stressful crisis and lockdown measures, highlighting the need for intervention strategies to mitigate its negative impact.
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Affiliation(s)
- Paulo P P Machado
- Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, University of Minho, School of Psychology, Braga, Portugal.
| | - Ana Pinto-Bastos
- Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, University of Minho, School of Psychology, Braga, Portugal
| | - Rita Ramos
- Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, University of Minho, School of Psychology, Braga, Portugal
| | - Tânia F Rodrigues
- Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, University of Minho, School of Psychology, Braga, Portugal
| | - Elsa Louro
- Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, University of Minho, School of Psychology, Braga, Portugal
| | - Sónia Gonçalves
- Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, University of Minho, School of Psychology, Braga, Portugal
| | - Isabel Brandão
- Faculty of Medicine, Psychiatry Department, University Hospital Center of São João, 4200-319, Porto, Portugal
| | - Ana Vaz
- Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, University of Minho, School of Psychology, Braga, Portugal
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Pereira K, Monteiro A, Neto A, Rodrigues M, Barros J, Leite R, Rothwell D, Pires B, Roda D, Gonçalves S, Alves P. Radiation proctitis in prostate cancer treated by external beam radiotherapy: A 10-year retrospective study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)36187-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Almeida T, Pinto G, Correia B, Gonçalves S, Meijón M, Escandón M. In-depth analysis of the Quercus suber metabolome under drought stress and recovery reveals potential key metabolic players. Plant Sci 2020; 299:110606. [PMID: 32900444 DOI: 10.1016/j.plantsci.2020.110606] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 06/12/2020] [Accepted: 07/16/2020] [Indexed: 05/08/2023]
Abstract
Cork oak (Quercus suber L.) is a species of ecological, social and economic importance in the Mediterranean region. Given its xerophytic adaptability, the study of cork oak's response to drought stress conditions may provide important data in the global scenario of climate change. The mechanisms behind cork oak's adaptation to drought conditions can inform the design and development of tools to better manage this species under the changing climate patterns. Metabolomics is one of the most promising omics layers to capture a snapshot of a particular physiological state and to identify putative biomarkers of stress tolerance. Drastic changes were observed in the leaf metabolome of Q. suber between the different experimental conditions, namely at the beginning of the drought stress treatment, after one month under drought and post rehydration. All experimental treatments were analyzed through sPLS to inspect for global changes and stress and rehydration responses were analyzed independently for specific alterations. This allowed a more in-depth study and a search for biomarkers specific to a given hydric treatment. The metabolome analyses showed changes in both primary and secondary metabolism, but highlighted the role of secondary metabolism. In addition, a compound-specific response was observed in stress and rehydration. Key compounds such as L-phenylalanine and epigallocatechin 3-gallate were identified in relation to early drought response, terpenoid leonuridine and the flavonoid glycoside (-)-epicatechin-3'-O-glucuronide in long-term drought response, and flavone isoscoparine was identified in relation to the recovery process. The results here obtained provide novel insights into the biology of cork oak, highlighting pathways and metabolites potentially involved in the response of this species during drought and recovery that may be essential for its adaptation to long periods of drought. It is expected that this knowledge can encourage further functional studies in order to validate potential biomarkers of drought and recovery that maybe used to support decision-making in cork oak breeding programs.
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Affiliation(s)
- Tânia Almeida
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL)/Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, Beja, Portugal; Centre for Research in Ceramics & Composite Materials (CICECO), University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Gloria Pinto
- Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, Aveiro, Portugal..
| | - Barbara Correia
- Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Sónia Gonçalves
- Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL)/Instituto Politécnico de Beja (IPBeja), Rua Pedro Soares, Beja, Portugal
| | - Mónica Meijón
- Plant Physiology, Department B.O.S., Faculty of Biology, University of Oviedo, Oviedo, Asturias, Spain
| | - Mónica Escandón
- Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, Aveiro, Portugal..
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Vieira AI, Moreira CS, Rodrigues TF, Brandão I, Timóteo S, Nunes P, Gonçalves S. Nonsuicidal self-injury, difficulties in emotion regulation, negative urgency, and childhood invalidation: A study with outpatients with eating disorders. J Clin Psychol 2020; 77:607-628. [PMID: 32762121 DOI: 10.1002/jclp.23038] [Citation(s) in RCA: 4] [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: 09/09/2019] [Revised: 06/09/2020] [Accepted: 07/20/2020] [Indexed: 11/11/2022]
Abstract
OBJECTIVES Among outpatients with eating disorders (ED), we compared participants without nonsuicidal self-injury (non-NSSI group), with NSSI over a year ago (past NSSI group) and with NSSI in the previous year (current NSSI group) regarding different variables, and examined whether difficulties in emotion regulation and negative urgency moderated the relationship between maternal/paternal invalidation and NSSI. METHOD The sample included 171 outpatients (94.2% female; Mage = 28.78, SDage = 11.19). RESULTS Fifty-four participants (31.6%) had NSSI in the previous year. This group showed higher eating pathology, difficulties in emotion regulation, negative urgency, and maternal/paternal invalidation than the non-NSSI group. Analyses revealed an adequate fit to the data for the model that included moderating effects of emotional awareness and negative urgency in the relationship between maternal/paternal invalidation and increased likelihood of NSSI in the previous year. CONCLUSIONS Interventions for NSSI and ED should include emotion regulation, impulse control, and validation strategies.
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Affiliation(s)
- Ana I Vieira
- School of Psychology, Center for Research in Psychology (CIPsi), Psychotherapy and Psychopathology Unit, University of Minho, Braga, Portugal
| | - Célia S Moreira
- Mathematics Department, Center of Mathematics (CMUP), Faculty of Sciences, University of Porto, Porto, Portugal
| | - Tânia F Rodrigues
- School of Psychology, Center for Research in Psychology (CIPsi), Psychotherapy and Psychopathology Unit, University of Minho, Braga, Portugal
| | - Isabel Brandão
- Department of Psychiatry, Hospital Center of São João, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Sertório Timóteo
- Department of Psychiatry, Hospital Center of São João, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Patrícia Nunes
- Department of Psychiatry, Hospital Center of São João, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Sónia Gonçalves
- School of Psychology, Center for Research in Psychology (CIPsi), Psychotherapy and Psychopathology Unit, University of Minho, Braga, Portugal
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Ribeiro E, Sampaio A, Gonçalves MM, Taveira MDC, Cunha J, Maia Â, Matos M, Gonçalves S, Figueiredo B, Freire T, Soares T. Telephone-based psychological crisis intervention: the Portuguese experience with COVID-19. Counselling Psychology Quarterly 2020. [DOI: 10.1080/09515070.2020.1772200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Eugénia Ribeiro
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Adriana Sampaio
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Miguel M. Gonçalves
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Maria Do Céu Taveira
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Jácome Cunha
- , HASLab/INESC TEC & University of Minho, Braga, Portugal
| | - Ângela Maia
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Marlene Matos
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Sónia Gonçalves
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Bárbara Figueiredo
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
| | - Teresa Freire
- School of Psychology, Psychology Research Centre (CPsi)-university of Minho, Braga, Portugal
- Association of Psychology, University of Minho (Apsi-uminho), Braga, Portugal
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Ferreira I, Gonçalves S, Almiro P. Assessing fitness to drive: Knowledge and practices from medical doctors and psychologists. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa040.035] [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: 11/14/2022] Open
Abstract
Abstract
Introduction Medical and psychological assessment of fitness to drive is a professional activity performed in a large number of candidates and drivers to validate a driving license. Medical doctors and psychologists are responsible to assess medical and psychological abilities for driving, respectively. Despite the legal framework for assessing fitness to drive on each country, the knowledge and practices among professionals may vary.
Objectives To examine the knowledge and practices of Portuguese medical doctors and psychologists concerning the assessment of fitness to drive.
Methodology Two online questionnaires, one version for medical doctors and another for psychologists, were designed to measure self-reported knowledge and practices towards assessment of fitness to drive. The questionnaires were disseminated by e-mail to a non-probability sample, responding 273 participants, including 128 medical doctors and 145 psychologists.
Results In the sample of medical doctors, 49% recognized themselves as not qualified to do a medical assessment of fitness to drive, 40% reported lack of knowledge about the related legislation and the majority (83%) feel that would benefit from further education in this area. Concerning psychologists, 52.4% judged themselves as not qualified for psychological assessment for driving, 49.7% recognized lack of knowledge about the legislation and 70% would like to do training in this area. Both groups pointed lack of knowledge about several parameters such as mandatory assessments and periods, professional responsibilities and assessment methods.
Conclusion Medical doctors and psychologists highlighted lack of knowledge and confidence to practice assessments of fitness to drive. Academic education and training needs are pointed in order to improve the professional practices in those assessments with potential impact on road safety and public health.
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Affiliation(s)
- I Ferreira
- Universidade Europeia, Portugal
- Laboratório de Avaliação Psicológica e Psicometria (PsyAssessment Lab) e Centro de Investigação em Neuropsicologia e Intervenção Cognitivo-Comportamental (CINEICC) da FPCEUC, Portugal
| | - S Gonçalves
- Hospital de Magalhães Lemos, EPE, Unidade Funcional de Psiquiatria e Psicologia Forense, Portugal
| | - P Almiro
- Laboratório de Avaliação Psicológica e Psicometria (PsyAssessment Lab) e Centro de Investigação em Neuropsicologia e Intervenção Cognitivo-Comportamental (CINEICC) da FPCEUC, Portugal
- Universidade Autónoma de Lisboa, Centro de Investigação em Psicologia (CIP-UAL), Portugal
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Castelhano J, Ribeiro B, Sanches M, Graça B, Saraiva J, Oliveiros B, Neves C, Rodrigues T, Sereno J, Gonçalves S, Ferreira MJ, Seiça R, Matafome P, Castelo-Branco M. A rat model of enhanced glycation mimics cardiac phenotypic components of human type 2 diabetes : A translational study using MRI. J Diabetes Complications 2020; 34:107554. [PMID: 32122788 DOI: 10.1016/j.jdiacomp.2020.107554] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 01/22/2020] [Accepted: 01/26/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND The success of translational research depends on how well animal models mimic the pathophysiology of the human phenotype, and on the identification of disease mechanisms such as enhanced glycation. METHODS Here, we studied cardiac MRI and metabolic phenotypes in human type 2 diabetes (N = 106; 55 patients+51 controls) and animal models with distinct levels of fat diet and end glycation products, to model the role of these factors in the cardiac phenotype. We included four groups of rats, designed to evaluate the role of lipid load and glucotoxicity in cardiac function and to correlate these with the cardiac phenotype observed in humans. We also aimed to assess into which extent phenotypes were related to specific risk factors. RESULTS Stroke Volume (SV) and Peak Filling Rate (PFR) measures were similarly discriminative both in humans and animal models, particularly when enhanced glycation was present. Factorial analysis showed that reduction of multidimensionality into common main explanatory factors, in humans and animals, revealed components that equally explained the variance of cardiac phenotypes (87.62% and 83.75%, respectively). One of the components included, both in humans and animals, SV, PFR and peak ejection rate (PER). The other components included in both humans and animals are the following: ESV (end systolic volume), left ventricular mass (LVM) and ejection fraction (EF). These components were useful for between group discrimination. CONCLUSIONS We conclude that animal models of enhanced glycation and human type 2 diabetes share a striking similarity of cardiac phenotypic components and relation with metabolic changes, independently of fact content in the diet, which reinforces the role of glucose dysmetabolism in left ventricular dysfunction and provides a potentially useful approach for translational research in diabetes, in particular when testing new therapies early on during the natural history of this condition.
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Affiliation(s)
| | - Bruno Ribeiro
- CIBIT/ICNAS, University of Coimbra, Coimbra, Portugal
| | | | - Bruno Graça
- Coimbra University Hospital (CHUC), Coimbra, Portugal
| | - Joana Saraiva
- Coimbra University Hospital (CHUC), Coimbra, Portugal
| | - Bárbara Oliveiros
- Laboratório de Bioestatística e Informática Médica, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Christian Neves
- Laboratory of Physiology, Faculty of Medicine, University of Coimbra, Portugal
| | - Tiago Rodrigues
- Laboratory of Physiology, Faculty of Medicine, University of Coimbra, Portugal
| | - José Sereno
- CIBIT/ICNAS, University of Coimbra, Coimbra, Portugal
| | | | - Maria João Ferreira
- CIBIT/ICNAS, University of Coimbra, Coimbra, Portugal; Laboratório de Bioestatística e Informática Médica, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Raquel Seiça
- Laboratory of Physiology, Faculty of Medicine, University of Coimbra, Portugal
| | - Paulo Matafome
- Laboratory of Physiology, Faculty of Medicine, University of Coimbra, Portugal.; Instituto Politécnico de Coimbra, Coimbra Health School (ESTeSC), Department of Complementary Sciences, Coimbra, Portugal
| | - Miguel Castelo-Branco
- CIBIT/ICNAS, University of Coimbra, Coimbra, Portugal; Laboratório de Bioestatística e Informática Médica, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
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van der Pluijm RW, Tripura R, Hoglund RM, Pyae Phyo A, Lek D, Ul Islam A, Anvikar AR, Satpathi P, Satpathi S, Behera PK, Tripura A, Baidya S, Onyamboko M, Chau NH, Sovann Y, Suon S, Sreng S, Mao S, Oun S, Yen S, Amaratunga C, Chutasmit K, Saelow C, Runcharern R, Kaewmok W, Hoa NT, Thanh NV, Hanboonkunupakarn B, Callery JJ, Mohanty AK, Heaton J, Thant M, Gantait K, Ghosh T, Amato R, Pearson RD, Jacob CG, Gonçalves S, Mukaka M, Waithira N, Woodrow CJ, Grobusch MP, van Vugt M, Fairhurst RM, Cheah PY, Peto TJ, von Seidlein L, Dhorda M, Maude RJ, Winterberg M, Thuy-Nhien NT, Kwiatkowski DP, Imwong M, Jittamala P, Lin K, Hlaing TM, Chotivanich K, Huy R, Fanello C, Ashley E, Mayxay M, Newton PN, Hien TT, Valecha N, Smithuis F, Pukrittayakamee S, Faiz A, Miotto O, Tarning J, Day NPJ, White NJ, Dondorp AM. Triple artemisinin-based combination therapies versus artemisinin-based combination therapies for uncomplicated Plasmodium falciparum malaria: a multicentre, open-label, randomised clinical trial. Lancet 2020; 395:1345-1360. [PMID: 32171078 PMCID: PMC8204272 DOI: 10.1016/s0140-6736(20)30552-3] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/20/2020] [Accepted: 03/02/2020] [Indexed: 10/25/2022]
Abstract
BACKGROUND Artemisinin and partner-drug resistance in Plasmodium falciparum are major threats to malaria control and elimination. Triple artemisinin-based combination therapies (TACTs), which combine existing co-formulated ACTs with a second partner drug that is slowly eliminated, might provide effective treatment and delay emergence of antimalarial drug resistance. METHODS In this multicentre, open-label, randomised trial, we recruited patients with uncomplicated P falciparum malaria at 18 hospitals and health clinics in eight countries. Eligible patients were aged 2-65 years, with acute, uncomplicated P falciparum malaria alone or mixed with non-falciparum species, and a temperature of 37·5°C or higher, or a history of fever in the past 24 h. Patients were randomly assigned (1:1) to one of two treatments using block randomisation, depending on their location: in Thailand, Cambodia, Vietnam, and Myanmar patients were assigned to either dihydroartemisinin-piperaquine or dihydroartemisinin-piperaquine plus mefloquine; at three sites in Cambodia they were assigned to either artesunate-mefloquine or dihydroartemisinin-piperaquine plus mefloquine; and in Laos, Myanmar, Bangladesh, India, and the Democratic Republic of the Congo they were assigned to either artemether-lumefantrine or artemether-lumefantrine plus amodiaquine. All drugs were administered orally and doses varied by drug combination and site. Patients were followed-up weekly for 42 days. The primary endpoint was efficacy, defined by 42-day PCR-corrected adequate clinical and parasitological response. Primary analysis was by intention to treat. A detailed assessment of safety and tolerability of the study drugs was done in all patients randomly assigned to treatment. This study is registered at ClinicalTrials.gov, NCT02453308, and is complete. FINDINGS Between Aug 7, 2015, and Feb 8, 2018, 1100 patients were given either dihydroartemisinin-piperaquine (183 [17%]), dihydroartemisinin-piperaquine plus mefloquine (269 [24%]), artesunate-mefloquine (73 [7%]), artemether-lumefantrine (289 [26%]), or artemether-lumefantrine plus amodiaquine (286 [26%]). The median age was 23 years (IQR 13 to 34) and 854 (78%) of 1100 patients were male. In Cambodia, Thailand, and Vietnam the 42-day PCR-corrected efficacy after dihydroartemisinin-piperaquine plus mefloquine was 98% (149 of 152; 95% CI 94 to 100) and after dihydroartemisinin-piperaquine was 48% (67 of 141; 95% CI 39 to 56; risk difference 51%, 95% CI 42 to 59; p<0·0001). Efficacy of dihydroartemisinin-piperaquine plus mefloquine in the three sites in Myanmar was 91% (42 of 46; 95% CI 79 to 98) versus 100% (42 of 42; 95% CI 92 to 100) after dihydroartemisinin-piperaquine (risk difference 9%, 95% CI 1 to 17; p=0·12). The 42-day PCR corrected efficacy of dihydroartemisinin-piperaquine plus mefloquine (96% [68 of 71; 95% CI 88 to 99]) was non-inferior to that of artesunate-mefloquine (95% [69 of 73; 95% CI 87 to 99]) in three sites in Cambodia (risk difference 1%; 95% CI -6 to 8; p=1·00). The overall 42-day PCR-corrected efficacy of artemether-lumefantrine plus amodiaquine (98% [281 of 286; 95% CI 97 to 99]) was similar to that of artemether-lumefantrine (97% [279 of 289; 95% CI 94 to 98]; risk difference 2%, 95% CI -1 to 4; p=0·30). Both TACTs were well tolerated, although early vomiting (within 1 h) was more frequent after dihydroartemisinin-piperaquine plus mefloquine (30 [3·8%] of 794) than after dihydroartemisinin-piperaquine (eight [1·5%] of 543; p=0·012). Vomiting after artemether-lumefantrine plus amodiaquine (22 [1·3%] of 1703) and artemether-lumefantrine (11 [0·6%] of 1721) was infrequent. Adding amodiaquine to artemether-lumefantrine extended the electrocardiogram corrected QT interval (mean increase at 52 h compared with baseline of 8·8 ms [SD 18·6] vs 0·9 ms [16·1]; p<0·01) but adding mefloquine to dihydroartemisinin-piperaquine did not (mean increase of 22·1 ms [SD 19·2] for dihydroartemisinin-piperaquine vs 20·8 ms [SD 17·8] for dihydroartemisinin-piperaquine plus mefloquine; p=0·50). INTERPRETATION Dihydroartemisinin-piperaquine plus mefloquine and artemether-lumefantrine plus amodiaquine TACTs are efficacious, well tolerated, and safe treatments of uncomplicated P falciparum malaria, including in areas with artemisinin and ACT partner-drug resistance. FUNDING UK Department for International Development, Wellcome Trust, Bill & Melinda Gates Foundation, UK Medical Research Council, and US National Institutes of Health.
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Affiliation(s)
- Rob W van der Pluijm
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Center of Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Rupam Tripura
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Richard M Hoglund
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | | | - Dysoley Lek
- National Centre for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia; School of Public Health, National Institute of Public Health, Phnom Penh, Cambodia
| | | | - Anupkumar R Anvikar
- National Institute of Malaria Research, Indian Council of Medical Research, New Delhi, India
| | | | | | | | | | | | - Marie Onyamboko
- Kinshasa Mahidol Oxford Research Unit (KIMORU), Kinshasa, Democratic Republic of the Congo; Kinshasa School of Public Health, Kinshasa, Democratic Republic of the Congo
| | - Nguyen Hoang Chau
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Yok Sovann
- Pailin Provincial Health Department, Pailin, Cambodia
| | - Seila Suon
- National Centre for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Sokunthea Sreng
- National Centre for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Sivanna Mao
- Sampov Meas Referral Hospital, Pursat, Cambodia
| | - Savuth Oun
- Ratanakiri Referral Hospital, Ratanakiri, Cambodia
| | | | - Chanaki Amaratunga
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | | | | | | | | | - Nhu Thi Hoa
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Ngo Viet Thanh
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Borimas Hanboonkunupakarn
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - James J Callery
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Akshaya Kumar Mohanty
- Infectious Disease Biology Unit, IGH, Rourkela Research Unit of ILS, Bhubeneswar, DBT, Rourkela, India
| | - James Heaton
- Myanmar-Oxford Clinical Research Unit, Yangon, Myanmar
| | - Myo Thant
- Defence Services Medical Research Centre, Yangon, Myanmar
| | | | | | - Roberto Amato
- Nuffield Department of Medicine and MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK; Wellcome Sanger Institute, Hinxton, UK
| | - Richard D Pearson
- Nuffield Department of Medicine and MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK; Wellcome Sanger Institute, Hinxton, UK
| | | | | | - Mavuto Mukaka
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Naomi Waithira
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Charles J Woodrow
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Martin P Grobusch
- Center of Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Michele van Vugt
- Center of Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Rick M Fairhurst
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA; AstraZeneca, Gaithersburg, MD, USA
| | - Phaik Yeong Cheah
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Thomas J Peto
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Lorenz von Seidlein
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Mehul Dhorda
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; WorldWide Antimalarial Resistance Network - Asia Regional Centre, Bangkok, Thailand
| | - Richard J Maude
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; The Open University, Milton Keynes, UK; Harvard T H Chan School of Public Health, Harvard University, Boston, MA USA
| | - Markus Winterberg
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Nguyen Thanh Thuy-Nhien
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Dominic P Kwiatkowski
- Nuffield Department of Medicine and MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK; Wellcome Sanger Institute, Hinxton, UK
| | - Mallika Imwong
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Podjanee Jittamala
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Khin Lin
- Department of Medical Research, Pyin Oo Lwin, Myanmar
| | | | - Kesinee Chotivanich
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Rekol Huy
- National Centre for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Caterina Fanello
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Kinshasa Mahidol Oxford Research Unit (KIMORU), Kinshasa, Democratic Republic of the Congo
| | - Elizabeth Ashley
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Lao-Oxford-Mahosot Hospital Wellcome Trust Research Unit (LOMWRU), Vientiane, Laos
| | - Mayfong Mayxay
- Lao-Oxford-Mahosot Hospital Wellcome Trust Research Unit (LOMWRU), Vientiane, Laos; Institute of Research and Education Development (IRED), University of Health Sciences, Ministry of Health, Vientiane, Laos
| | - Paul N Newton
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Lao-Oxford-Mahosot Hospital Wellcome Trust Research Unit (LOMWRU), Vientiane, Laos
| | - Tran Tinh Hien
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Neena Valecha
- National Institute of Malaria Research, Indian Council of Medical Research, New Delhi, India
| | - Frank Smithuis
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Myanmar-Oxford Clinical Research Unit, Yangon, Myanmar
| | - Sasithon Pukrittayakamee
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; The Royal Society of Thailand, Dusit, Bangkok, Thailand
| | - Abul Faiz
- Malaria Research Group and Dev Care Foundation, Dhaka, Bangladesh
| | - Olivo Miotto
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK; Nuffield Department of Medicine and MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK; Wellcome Sanger Institute, Hinxton, UK
| | - Joel Tarning
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Nicholas P J Day
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Nicholas J White
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Arjen M Dondorp
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK.
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Gonçalves S, Moreira C, Gonçalves M, Vieira AI, Machado BC. The role of the perception of family environment in relation to body dissatisfaction, disordered eating and difficulties in close relationships. Eat Weight Disord 2020; 25:205-213. [PMID: 30066258 DOI: 10.1007/s40519-018-0551-9] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 07/18/2018] [Indexed: 11/29/2022] Open
Abstract
PURPOSE Invalidating childhood environments have been characterised as those in which caregivers do not validate a child's personal experiences and the communication of emotions is considered inappropriate, being either ignored or punished. The current study assessed the relationships among invalidating childhood environments, body dissatisfaction, disordered eating and difficulties in close relationships in a sample of college students. METHODS In this study, 362 non-clinical participants with ages ranging from 17 to 25 years (M = 20.02, SD = 1.51) completed self-report measures. RESULTS Difficulties in close relationships, body dissatisfaction and disordered eating were significantly higher in invalidating families than in validating families. Invalidating childhood environments were associated with higher body dissatisfaction and disordered eating, and both associations were mediated by difficulties in close relationships. Finally, body dissatisfaction mediates the effects of BMI and difficulties in close relationships on eating disorder symptoms. CONCLUSIONS Perceived experiences of invalidation in childhood may be associated with eating disorder symptomatology. In addition, difficulties in close relationships during adulthood possibly contribute to the emergence of eating disorder symptoms. LEVEL OF EVIDENCE Level V, descriptive study.
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Affiliation(s)
- Sónia Gonçalves
- Psychotherapy and Psychopathology Research Unit, CIPsi, School of Psychology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
| | - Célia Moreira
- Psychotherapy and Psychopathology Research Unit, CIPsi, School of Psychology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Mónica Gonçalves
- Psychotherapy and Psychopathology Research Unit, CIPsi, School of Psychology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Ana Isabel Vieira
- Psychotherapy and Psychopathology Research Unit, CIPsi, School of Psychology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Bárbara César Machado
- CEDH, Centre for Studies in Human Development, Faculty of Education and Psychology, Catholic University of Portugal, Porto, Portugal
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Vieira AI, Fernandes J, Machado PPP, Gonçalves S. The Portuguese version of the body investment scale: psychometric properties and relationships with disordered eating and emotion dysregulation. J Eat Disord 2020; 8:24. [PMID: 32626578 PMCID: PMC7328259 DOI: 10.1186/s40337-020-00302-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/18/2020] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND This study aimed to examine the psychometric properties of the Portuguese version of the Body Investment Scale (BIS) in a nonclinical sample of students and a clinical sample of outpatients with eating disorders, to analyse the differences in the BIS factors between the samples and to explore the relationships among body investment, eating disorder symptoms and difficulties in emotion regulation. METHODS The clinical (n = 93) and nonclinical (n = 448) samples completed self-report measures. RESULTS In contrast to the nonclinical sample, confirmatory factor analysis showed an acceptable fit for the original four-factor solution of the BIS in the clinical sample. This scale also demonstrated adequate internal consistency in both samples. Significant differences in BIS factors were found between the samples; outpatients with eating disorders presented more negative feelings about the body, less comfort with touch and lower levels of body protection than those of the students. In the clinical sample, significant relationships were found between these factors and a higher severity of disordered eating, as well as between these factors and higher difficulties in emotion regulation. CONCLUSIONS The Portuguese version of the BIS is a psychometrically sound measure for the assessment of body investment, and it is especially appropriate in a clinical setting of outpatients with eating disorders.
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Affiliation(s)
- Ana Isabel Vieira
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
| | - Joana Fernandes
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
| | - Paulo P P Machado
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
| | - Sónia Gonçalves
- Psychology Research Center (CIPsi), School of Psychology, University of Minho, 4710-057 Braga, Portugal
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Costa P, Gonçalves S, Mora H, Carabineiro SAC, Viana JC, Lanceros-Mendez S. Highly Sensitive Piezoresistive Graphene-Based Stretchable Composites for Sensing Applications. ACS Appl Mater Interfaces 2019; 11:46286-46295. [PMID: 31725262 DOI: 10.1021/acsami.9b19294] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanocarbonaceous materials with specific geometries and physicochemical properties allow the development of high-performance polymer-based smart composite materials. Among them, chemical treatments of graphene allow tailoring its electrical conductivity and, therefore, tuning functional response of materials for sensing applications. Polymer-based nanocomposites have been developed from styrene-ethylene-butylene-styrene (SEBS), a high deformation thermoplastic elastomer, and different graphene-based fillers, including graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoplatelets (G-NPLs). It is shown that the electrical conductivity shows a percolation threshold around 2 wt % for GO and rGO, remaining nearly independent of the filler content for G-NPL filler contents up to 6 wt %. Furthermore, GO/SEBS and rGO/SEBS composites show high piezoresistive sensibility with gauge factors ranging from 15 up to 120 for strains up to 10%. Thus, GO/SEBS and rGO/SEBS composites can represent a new generation of materials for strain sensor applications, as demonstrated in their implementation in a hand glove prototype with finger movement monitoring.
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Affiliation(s)
- P Costa
- Center of Physics , University of Minho , 4710-057 Braga , Portugal
- Institute for Polymers and Composites IPC , University of Minho , 4804-533 Guimarães , Portugal
| | - S Gonçalves
- Center of Physics , University of Minho , 4710-057 Braga , Portugal
- Centro ALGORITMI , University of Minho , Campus de Azurém , 4800-058 Guimarães , Portugal
- EngageLab , University of Minho , 4810-453 Guimarães , Portugal
| | - H Mora
- Center of Physics , University of Minho , 4710-057 Braga , Portugal
- Institute of Science and Innovation for Bio-Sustainability (IB-S) , University of Minho , 4710-057 Braga , Portugal
| | - S A C Carabineiro
- Laboratory of Catalysis and Materials (LCM), Associate Laboratory LSRE-LCM, Faculty of Engineering , University of Porto , Rua Dr. Roberto Frias s/n , 4200-465 Porto , Portugal
| | - J C Viana
- Institute for Polymers and Composites IPC , University of Minho , 4804-533 Guimarães , Portugal
| | - S Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures , UPV/EHU Science Park, 48940 Leioa , Spain
- IKERBASQUE, Basque Foundation for Science , 48013 Bilbao , Spain
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Makowski M, Silva ÍC, Pais do Amaral C, Gonçalves S, Santos NC. Advances in Lipid and Metal Nanoparticles for Antimicrobial Peptide Delivery. Pharmaceutics 2019; 11:E588. [PMID: 31717337 PMCID: PMC6920925 DOI: 10.3390/pharmaceutics11110588] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [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: 10/01/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial peptides (AMPs) have been described as excellent candidates to overcome antibiotic resistance. Frequently, AMPs exhibit a wide therapeutic window, with low cytotoxicity and broad-spectrum antimicrobial activity against a variety of pathogens. In addition, some AMPs are also able to modulate the immune response, decreasing potential harmful effects such as sepsis. Despite these benefits, only a few formulations have successfully reached clinics. A common flaw in the druggability of AMPs is their poor pharmacokinetics, common to several peptide drugs, as they may be degraded by a myriad of proteases inside the organism. The combination of AMPs with carrier nanoparticles to improve delivery may enhance their half-life, decreasing the dosage and thus, reducing production costs and eventual toxicity. Here, we present the most recent advances in lipid and metal nanodevices for AMP delivery, with a special focus on metal nanoparticles and liposome formulations.
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Affiliation(s)
| | | | | | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal; (M.M.); (Í.C.S.); (C.P.d.A.)
| | - Nuno C. Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal; (M.M.); (Í.C.S.); (C.P.d.A.)
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Hamilton WL, Amato R, van der Pluijm RW, Jacob CG, Quang HH, Thuy-Nhien NT, Hien TT, Hongvanthong B, Chindavongsa K, Mayxay M, Huy R, Leang R, Huch C, Dysoley L, Amaratunga C, Suon S, Fairhurst RM, Tripura R, Peto TJ, Sovann Y, Jittamala P, Hanboonkunupakarn B, Pukrittayakamee S, Chau NH, Imwong M, Dhorda M, Vongpromek R, Chan XHS, Maude RJ, Pearson RD, Nguyen T, Rockett K, Drury E, Gonçalves S, White NJ, Day NP, Kwiatkowski DP, Dondorp AM, Miotto O. Evolution and expansion of multidrug-resistant malaria in southeast Asia: a genomic epidemiology study. Lancet Infect Dis 2019; 19:943-951. [PMID: 31345709 PMCID: PMC6715858 DOI: 10.1016/s1473-3099(19)30392-5] [Citation(s) in RCA: 182] [Impact Index Per Article: 36.4] [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: 05/11/2019] [Revised: 06/15/2019] [Accepted: 06/20/2019] [Indexed: 11/16/2022]
Abstract
BACKGROUND A multidrug-resistant co-lineage of Plasmodium falciparum malaria, named KEL1/PLA1, spread across Cambodia in 2008-13, causing high rates of treatment failure with the frontline combination therapy dihydroartemisinin-piperaquine. Here, we report on the evolution and spread of KEL1/PLA1 in subsequent years. METHODS For this genomic epidemiology study, we analysed whole genome sequencing data from P falciparum clinical samples collected from patients with malaria between 2007 and 2018 from Cambodia, Laos, northeastern Thailand, and Vietnam, through the MalariaGEN P falciparum Community Project. Previously unpublished samples were provided by two large-scale multisite projects: the Tracking Artemisinin Resistance Collaboration II (TRAC2) and the Genetic Reconnaissance in the Greater Mekong Subregion (GenRe-Mekong) project. By investigating genome-wide relatedness between parasites, we inferred patterns of shared ancestry in the KEL1/PLA1 population. FINDINGS We analysed 1673 whole genome sequences that passed quality filters, and determined KEL1/PLA1 status in 1615. Before 2009, KEL1/PLA1 was only found in western Cambodia; by 2016-17 its prevalence had risen to higher than 50% in all of the surveyed countries except for Laos. In northeastern Thailand and Vietnam, KEL1/PLA1 exceeded 80% of the most recent P falciparum parasites. KEL1/PLA1 parasites maintained high genetic relatedness and low diversity, reflecting a recent common origin. Several subgroups of highly related parasites have recently emerged within this co-lineage, with diverse geographical distributions. The three largest of these subgroups (n=84, n=79, and n=47) mostly emerged since 2016 and were all present in Cambodia, Laos, and Vietnam. These expanding subgroups carried new mutations in the crt gene, which arose on a specific genetic background comprising multiple genomic regions. Four newly emerging crt mutations were rare in the early period and became more prevalent by 2016-17 (Thr93Ser, rising to 19·8%; His97Tyr to 11·2%; Phe145Ile to 5·5%; and Ile218Phe to 11·1%). INTERPRETATION After emerging and circulating for several years within Cambodia, the P falciparum KEL1/PLA1 co-lineage diversified into multiple subgroups and acquired new genetic features, including novel crt mutations. These subgroups have rapidly spread into neighbouring countries, suggesting enhanced fitness. These findings highlight the urgent need for elimination of this increasingly drug-resistant parasite co-lineage, and the importance of genetic surveillance in accelerating malaria elimination efforts. FUNDING Wellcome Trust, Bill & Melinda Gates Foundation, UK Medical Research Council, and UK Department for International Development.
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Affiliation(s)
- William L Hamilton
- Wellcome Sanger Institute, Hinxton, UK; Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Roberto Amato
- Wellcome Sanger Institute, Hinxton, UK; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK
| | - Rob W van der Pluijm
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - Huynh Hong Quang
- Institute of Malariology, Parasitology and Entomology, Quy Nhon, Vietnam
| | | | - Tran Tinh Hien
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | | | | | - Mayfong Mayxay
- Institute of Research and Education Development, University of Health Sciences, Vientiane, Laos; Lao-Oxford-Mahosot Hospital Wellcome Trust Research Unit (LOMWRU), Vientiane, Laos
| | - Rekol Huy
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Rithea Leang
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Cheah Huch
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Lek Dysoley
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Chanaki Amaratunga
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Seila Suon
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Rick M Fairhurst
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Rupam Tripura
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Thomas J Peto
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Yok Sovann
- Provincial Health Department, Pailin, Cambodia
| | | | | | - Sasithon Pukrittayakamee
- Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; The Royal Society of Thailand, Bangkok, Thailand
| | | | - Mallika Imwong
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Mehul Dhorda
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Worldwide Antimalarial Resistance Network (WWARN), Asia Regional Centre, Bangkok, Thailand
| | - Ranitha Vongpromek
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Worldwide Antimalarial Resistance Network (WWARN), Asia Regional Centre, Bangkok, Thailand
| | - Xin Hui S Chan
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Richard J Maude
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Harvard TH Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Richard D Pearson
- Wellcome Sanger Institute, Hinxton, UK; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK
| | - T Nguyen
- Wellcome Sanger Institute, Hinxton, UK
| | - Kirk Rockett
- Wellcome Sanger Institute, Hinxton, UK; Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | | | - Nicholas J White
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Nicholas P Day
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Dominic P Kwiatkowski
- Wellcome Sanger Institute, Hinxton, UK; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK.
| | - Arjen M Dondorp
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Olivo Miotto
- Wellcome Sanger Institute, Hinxton, UK; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK; Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
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van der Pluijm RW, Imwong M, Chau NH, Hoa NT, Thuy-Nhien NT, Thanh NV, Jittamala P, Hanboonkunupakarn B, Chutasmit K, Saelow C, Runjarern R, Kaewmok W, Tripura R, Peto TJ, Yok S, Suon S, Sreng S, Mao S, Oun S, Yen S, Amaratunga C, Lek D, Huy R, Dhorda M, Chotivanich K, Ashley EA, Mukaka M, Waithira N, Cheah PY, Maude RJ, Amato R, Pearson RD, Gonçalves S, Jacob CG, Hamilton WL, Fairhurst RM, Tarning J, Winterberg M, Kwiatkowski DP, Pukrittayakamee S, Hien TT, Day NP, Miotto O, White NJ, Dondorp AM. Determinants of dihydroartemisinin-piperaquine treatment failure in Plasmodium falciparum malaria in Cambodia, Thailand, and Vietnam: a prospective clinical, pharmacological, and genetic study. Lancet Infect Dis 2019; 19:952-961. [PMID: 31345710 PMCID: PMC6715822 DOI: 10.1016/s1473-3099(19)30391-3] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [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: 05/10/2019] [Revised: 06/07/2019] [Accepted: 06/13/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND The emergence and spread of resistance in Plasmodium falciparum malaria to artemisinin combination therapies in the Greater Mekong subregion poses a major threat to malaria control and elimination. The current study is part of a multi-country, open-label, randomised clinical trial (TRACII, 2015-18) evaluating the efficacy, safety, and tolerability of triple artemisinin combination therapies. A very high rate of treatment failure after treatment with dihydroartemisinin-piperaquine was observed in Thailand, Cambodia, and Vietnam. The immediate public health importance of our findings prompted us to report the efficacy data on dihydroartemisinin-piperaquine and its determinants ahead of the results of the overall trial, which will be published later this year. METHODS Patients aged between 2 and 65 years presenting with uncomplicated P falciparum or mixed species malaria at seven sites in Thailand, Cambodia, and Vietnam were randomly assigned to receive dihydroartemisinin-piperaquine with or without mefloquine, as part of the TRACII trial. The primary outcome was the PCR-corrected efficacy at day 42. Next-generation sequencing was used to assess the prevalence of molecular markers associated with artemisinin resistance (kelch13 mutations, in particular Cys580Tyr) and piperaquine resistance (plasmepsin-2 and plasmepsin-3 amplifications and crt mutations). This study is registered with ClinicalTrials.gov, number NCT02453308. FINDINGS Between Sept 28, 2015, and Jan 18, 2018, 539 patients with acute P falciparum malaria were screened for eligibility, 292 were enrolled, and 140 received dihydroartemisinin-piperaquine. The overall Kaplan-Meier estimate of PCR-corrected efficacy of dihydroartemisinin-piperaquine at day 42 was 50·0% (95% CI 41·1-58·3). PCR-corrected efficacies for individual sites were 12·7% (2·2-33·0) in northeastern Thailand, 38·2% (15·9-60·5) in western Cambodia, 73·4% (57·0-84·3) in Ratanakiri (northeastern Cambodia), and 47·1% (33·5-59·6) in Binh Phuoc (southwestern Vietnam). Treatment failure was associated independently with plasmepsin2/3 amplification status and four mutations in the crt gene (Thr93Ser, His97Tyr, Phe145Ile, and Ile218Phe). Compared with the results of our previous TRACI trial in 2011-13, the prevalence of molecular markers of artemisinin resistance (kelch13 Cys580Tyr mutations) and piperaquine resistance (plasmepsin2/3 amplifications and crt mutations) has increased substantially in the Greater Mekong subregion in the past decade. INTERPRETATION Dihydroartemisinin-piperaquine is not treating malaria effectively across the eastern Greater Mekong subregion. A highly drug-resistant P falciparum co-lineage is evolving, acquiring new resistance mechanisms, and spreading. Accelerated elimination of P falciparum malaria in this region is needed urgently, to prevent further spread and avoid a potential global health emergency. FUNDING UK Department for International Development, Wellcome Trust, Bill & Melinda Gates Foundation, Medical Research Council, and National Institutes of Health.
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Affiliation(s)
- Rob W van der Pluijm
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Mallika Imwong
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nguyen Hoang Chau
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Nhu Thi Hoa
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Nguyen Thanh Thuy-Nhien
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Ngo Viet Thanh
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Podjanee Jittamala
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Borimas Hanboonkunupakarn
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | | | | | | | - Rupam Tripura
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Thomas J Peto
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Sovann Yok
- Pailin Provincial Health Department, Pailin, Cambodia
| | - Seila Suon
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Sokunthea Sreng
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Sivanna Mao
- Sampov Meas Referral Hospital, Pursat, Cambodia
| | - Savuth Oun
- Ratanakiri Referral Hospital, Ratanakiri, Cambodia
| | | | - Chanaki Amaratunga
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Dysoley Lek
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia; School of Public Health, National Institute of Public Health, Phnom Penh, Cambodia
| | - Rekol Huy
- National Center for Parasitology, Entomology and Malaria Control, Phnom Penh, Cambodia
| | - Mehul Dhorda
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom; WorldWide Antimalarial Resistance Network Asia Regional Centre, Bangkok, Thailand
| | - Kesinee Chotivanich
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Elizabeth A Ashley
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom; Lao-Oxford-Mahosot Hospital Wellcome Trust Research Unit, Vientiane, Laos
| | - Mavuto Mukaka
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Naomi Waithira
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Phaik Yeong Cheah
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Richard J Maude
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom; Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA
| | | | - Richard D Pearson
- Wellcome Sanger Institute, Hinxton, United Kingdom; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK
| | | | | | | | - Rick M Fairhurst
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Joel Tarning
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Markus Winterberg
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Dominic P Kwiatkowski
- Wellcome Sanger Institute, Hinxton, United Kingdom; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK
| | - Sasithon Pukrittayakamee
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; The Royal Society of Thailand, Dusit, Bangkok, Thailand
| | - Tran Tinh Hien
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom; Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Nicholas Pj Day
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Olivo Miotto
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom; Wellcome Sanger Institute, Hinxton, United Kingdom; MRC Centre for Genomics and Global Health, Big Data Institute, University of Oxford, Oxford, UK
| | - Nicholas J White
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Arjen M Dondorp
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.
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Marinho J, Neto E, Leão I, Silva J, Cardoso L, Gonçalves S, Capela A, Costa T, Moreira Pinto A, Custódio S. Liquid biopsy for RAS mutational status analysis in metastatic colorectal cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.253] [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: 11/14/2022] Open
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Mouraz M, Ferreira CS, Gonçalves S, Martins NN, Martins FN. Laparoscopic Approach in Surgical Staging of Endometrial Cancer. Rev Bras Ginecol Obstet 2019; 41:306-311. [PMID: 31181583 DOI: 10.1055/s-0039-1688461] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE To compare laparoscopy with laparotomy for surgical staging of endometrial cancer. METHODS A cohort of women with preoperative diagnosis of endometrial cancer who underwent surgical staging was retrospectively evaluated. The main study end points were: morbidity and mortality, hospital length of stay, perioperative adverse events and recurrence rate. Data analysis was performed with the software SPSS v25 (IBM Corp., Armonk, NY, USA), categorical variables using a Chi-square and Fisher test, and continuous variables using the Student t-test. RESULTS A total of 162 patients were analyzed. One-hundred and thirty eight patients met the inclusion criteria, 41 of whom underwent staging by laparoscopy and 97 by laparotomy. Conversions from laparoscopy to laparotomy happened in 2 patients (4.9%) and were secondary to technical difficulties and poor exposure. Laparoscopy had fewer postoperative adverse events when compared with laparotomy (7.3% vs 23.7%, respectively; p = 0.005), but similar rates of intraoperative complications, despite having a significantly longer operative time (median, 175 vs 130 minutes, respectively; p < 0.001). Hospital stay was significantly lower in laparoscopy versus laparotomy patients (median, 3 vs 7 days, respectively; p < 0.001). No difference in recurrence or mortality rates were observed. CONCLUSION Laparoscopic surgical staging for endometrial cancer is feasible and safe. Patients have lower postoperative complication rates and shorter hospital stays when compared with the approach by laparotomy.
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Affiliation(s)
- Mariana Mouraz
- Department of Obstetrics and Gynecology, Hospital Dr. José de Almeida, Cascais, Portugal
| | - Cátia Sofia Ferreira
- Department of Obstetrics and Gynecology, Centro Hospitalar Tondela, Viseu, Portugal
| | - Sónia Gonçalves
- Department of Obstetrics and Gynecology, Centro Hospitalar Tondela, Viseu, Portugal
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