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Simões Cunha M, Amaral R, Pereira AM, Almeida R, Alves-Correia M, Loureiro CC, Lopes C, Carvalho J, Ribeiro C, Vidal C, Antolín-Amérigo D, Pinto D, Ferreira-Magalhães M, Vasconcelos MJ, Lozoya C, Santos N, Cardia F, Taborda-Barata L, Ferreira R, Morais Silva P, Ferreira TM, Câmara R, Silva E, Bordalo D, Guimarães C, Calix MJ, da Silva S, Marques ML, Morete A, Nunes C, Vieira C, Páscoa R, Alves A, Marques JV, Reis B, Monteiro L, Monteiro R, Cepa M, Valentim B, Coelho DS, Fernandes S, Meireles P, Aguiar MA, Mourão AR, Fonseca JA, Jácome C. Symptoms of anxiety and depression in patients with persistent asthma: a cross-sectional analysis of the INSPIRERS studies. BMJ Open 2023; 13:e068725. [PMID: 37147092 PMCID: PMC10163458 DOI: 10.1136/bmjopen-2022-068725] [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] [Indexed: 05/07/2023] Open
Abstract
OBJECTIVES Anxiety and depression are relevant comorbidities in asthma, but, in Portugal and Spain, data on this topic are scarce. We assessed, in patients with asthma, the frequency of anxiety and depression using the Hospital Anxiety and Depression Scale (HADS) and the European Quality of Life Five Dimension Questionnaire (EQ-5D); the level of agreement between these questionnaires, and the factors associated with these symptoms. METHODS This is a secondary analysis of the INSPIRERS studies. A total of 614 adolescents and adults with persistent asthma (32.6±16.9 years, 64.7% female) were recruited from 30 primary care centres and 32 allergy, pulmonology and paediatric clinics. Demographic and clinical characteristics, HADS and EQ-5D were collected. A score ≥8 on Hospital Anxiety and Depression Scale-Anxiety/Hospital Anxiety and Depression Scale-Depression or a positive answer to EQ-5D item 5 indicated the presence of these symptoms. Agreement was determined by Cohen's kappa. Two multivariable logistic regressions were built. RESULTS According to HADS, 36% of the participants had symptoms of anxiety and 12% of depression. According to EQ-5D, 36% of the participants had anxiety/depression. The agreement between questionnaires in identifying anxiety/depression was moderate (k=0.55, 95% CI 0.48 to 0.62). Late asthma diagnosis, comorbidities and female gender were predictors of anxiety/depression, while better asthma control, health-related quality of life and perception of health were associated with lower odds for anxiety/depression. CONCLUSION At least 1/3 of the patients with persistent asthma experience symptoms of anxiety/depression, showing the relevance of screening these disorders in patients with asthma. EQ-5D and HADS questionnaires showed a moderate agreement in the identification of anxiety/depression symptoms. The identified associated factors need to be further investigated in long-term studies.
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Affiliation(s)
- Mafalda Simões Cunha
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rita Amaral
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
- Department of Cardiovascular and Respiratory Sciences, Porto Health School, Polytechnic Institute of Porto, Porto, Portugal
- Department of Women's and Children's Health, Paediatric Research, Uppsala University, Uppsala, Sweden
| | - Ana Margarida Pereira
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Rute Almeida
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Magna Alves-Correia
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
| | - Cláudia Chaves Loureiro
- Pulmonology Department, Hospitais da Universidade de Coimbra, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Cristina Lopes
- Basic and Clinic Immunology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Immuno-allergology, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
| | - Joana Carvalho
- Serviço de Pediatria, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
| | - Carmelita Ribeiro
- Serviço de Imunoalergologia, Hospital Universitário de Coimbra, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Carmen Vidal
- Servicio de Alergia, Complejo Hospitalario Universitario de Santiago, Santiago de Compostella, Spain
| | - Dario Antolín-Amérigo
- Servicio de Alergia, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria, Madrid, Spain
| | - Diana Pinto
- Serviço de Pediatria, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Manuel Ferreira-Magalhães
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
- Serviço de Pediatria, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Maria João Vasconcelos
- Serviço de Imunoalergologia, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Carlos Lozoya
- Allergy, Hospital Amato Lusitano, Unidade Local de Saúde de Castelo Branco, Castelo Branco, Portugal
| | - Natacha Santos
- Serviço de Imunoalergologia, Centro Hospitalar Universitário do Algarve, Portimão, Portugal
| | - Francisca Cardia
- Unidade de Saúde Familiar Terras de Azurara, Agrupamento de Centros de Saúde Dão Lafões, Mangualde, Portugal
| | - Luís Taborda-Barata
- CICS-UBI Centro de Investigação em Ciências da Saúde - Health Sciences Research Centre & UBIAir - Clinical & Experimental Lung Centre, University of Beira Interior, Covilha, Portugal
- Department of Allergy & Clinical Immunology, Cova da Beira University Hospital Centre, Covilhã, Portugal
| | - Rosário Ferreira
- Departamento de Pediatria, Hospital de Santa Maria, Centro Hospitalar de Lisboa Norte, Lisboa, Portugal
| | | | - Tania Monteiro Ferreira
- Unidade de Saúde Familiar Progresso e Saúde, Agrupamento de Centros de Saúde Baixo Mondego, Tocha, Portugal
| | - Raquel Câmara
- Serviço de Pneumologia, Hospital Nossa Senhora do Rosário, Centro Hospitalar Barreiro Montijo, Barreiro, Portugal
| | - Eurico Silva
- Unidade de Saúde Familiar João Semana, Agrupamento de Centros de Saúde de Baixo Vouga, Ovar, Portugal
| | - Diana Bordalo
- Serviço de Pediatria, Unidade Hospitalar de Famalicão, Centro Hospitalar do Médio Ave, Vila Nova de Famalicão, Portugal
| | - Cristina Guimarães
- Unidade de Cuidados de Saúde Personalizados Norte (Arnaldo Sampaio), Agrupamento de Centros de Saúde Pinhal Litoral, Monte Redondo, Portugal
| | - Maria José Calix
- Serviço de Pediatria, Hospital de São Teotónio, Centro Hospitalar Tondela Viseu, Viseu, Portugal
| | - Sofia da Silva
- Unidade de Saúde Familiar Cuidarte, Unidade Local de Saúde do Alto Minho, Portuzelo, Portugal
| | - Maria Luís Marques
- Serviço de Imunoalergologia, Hospital da Senhora da Oliveira, Guimarães, Guimaraes, Portugal
| | - Ana Morete
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
- Serviço de Imunoalergologia, Hospital Infante D Pedro, Centro Hospitalar Baixo Vouga, Aveiro, Portugal
| | - Carlos Nunes
- Centro de Imunoalergologia do Algarve, Portimão, Portugal
| | - Cláudia Vieira
- Unidade de Saúde Familiar Corgo, Agrupamento de Centros de Saúde Douro I - Marão e Douro Norte, Vila Real, Portugal
| | - Rosália Páscoa
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine of the University of Porto, Porto, Portugal
- Unidade de Saúde Familiar Homem do Leme, ACeS Porto Ocidental, Porto, Portugal
| | - Adelaide Alves
- Serviço de Pneumologia, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - José Varanda Marques
- Unidade de Saúde Familiar Viseu-Cidade, Agrupamento de Centros de Saúde do Dão Lafões, Viseu, Portugal
| | - Bruno Reis
- Unidade de Cuidados Saúde Personalizados Sicó, Agrupamento de Centros de Saúde Pinhal Litoral, Leiria, Portugal
| | - Luís Monteiro
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
- USF Esgueira +, ACES Baixo Vouga, Esgueira, Portugal
| | - Rosário Monteiro
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
- Unidade de Saúde Familiar Homem do Leme, ACeS Porto Ocidental, Porto, Portugal
| | - Margarida Cepa
- Unidade de Saúde Familiar Marquês, ACES Pinhal Litoral, Pombal, Portugal
| | - Bruno Valentim
- Unidade de Saúde Familiar Condeixa, ACES Baixo Mondego, Condeixa-a-Nova, Portugal
| | - Daniela Sousa Coelho
- Unidade de Cuidados de Saúde Personalizados de Amarante, ACES Tâmega I - Baixo Tâmega, Amarante, Portugal
| | - Sara Fernandes
- Unidade de Saúde Familiar Bracara Augusta, ACES Cávado I, Braga, Portugal
| | - Patrícia Meireles
- Unidade de Saúde Familiar Almedina, ACES Douro II - Douro Sul, Lamego, Portugal
| | - Margarida Abreu Aguiar
- Unidade de Saúde Familiar Valongo, ACES Grande Porto III - Maia / Valongo, Valongo, Portugal
| | - Ana Rita Mourão
- Unidade de Saúde Familiar Canelas, ACES Grande Porto VIII - Espinho / Gaia, Vila Nova de Gaia, Portugal
| | - Joao A Fonseca
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
- MEDIDA - Medicina, Educação, Investigação, Desenvolvimento e Avaliação, Porto, Portugal
| | - Cristina Jácome
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
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Niazi S, Nygård HS, Reis B, Baben MT. Consistent thermodynamic modeling of H2O–HCl–KOH–KCl between 200 K and 1,000 K. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Reis B, Ramos-Pinto L, Cunha SA, Pintado M, da Silva JL, Dias J, Conceição L, Matos E, Costas B. Chlorella vulgaris Extracts as Modulators of the Health Status and the Inflammatory Response of Gilthead Seabream Juveniles (Sparus aurata). Mar Drugs 2022; 20:md20070407. [PMID: 35877700 PMCID: PMC9323325 DOI: 10.3390/md20070407] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023] Open
Abstract
This study aimed to evaluate the effects of short-term supplementation, with 2% Chlorella vulgaris (C. vulgaris) biomass and two 0.1% C. vulgaris extracts, on the health status (experiment one) and on the inflammatory response (experiment two) of gilthead seabream (Sparus aurata). The trial comprised four isoproteic (50% crude protein) and isolipidic (17% crude fat) diets. A fishmeal-based (FM), practical diet was used as a control (CTR), whereas three experimental diets based on CTR were further supplemented with a 2% inclusion of C. vulgaris biomass (Diet D1); 0.1% inclusion of C. vulgaris peptide-enriched extract (Diet D2) and finally a 0.1% inclusion of C. vulgaris insoluble fraction (Diet D3). Diets were randomly assigned to quadruplicate groups of 97 fish/tank (IBW: 33.4 ± 4.1 g), fed to satiation three times a day in a recirculation seawater system. In experiment one, seabream juveniles were fed for 2 weeks and sampled for tissues at 1 week and at the end of the feeding period. Afterwards, randomly selected fish from each group were subjected to an inflammatory insult (experiment two) by intraperitoneal injection of inactivated gram-negative bacteria, following 24 and 48 h fish were sampled for tissues. Blood was withdrawn for haematological procedures, whereas plasma and gut tissue were sampled for immune and oxidative stress parameters. The anterior gut was also collected for gene expression measurements. After 1 and 2 weeks of feeding, fish fed D2 showed higher circulating neutrophils than seabream fed CTR. In contrast, dietary treatments induced mild effects on the innate immune and antioxidant functions of gilthead seabream juveniles fed for 2 weeks. In the inflammatory response following the inflammatory insult, mild effects could be attributed to C. vulgaris supplementation either in biomass form or extract. However, the C. vulgaris soluble peptide-enriched extract seems to confer a protective, anti-stress effect in the gut at the molecular level, which should be further explored in future studies.
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Affiliation(s)
- Bruno Reis
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Avenida General Norton de Matos, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal;
- SPAROS Lda., Área Empresarial de Marim, Lote C, 8700-221 Olhão, Portugal; (J.D.); (L.C.)
- Sorgal S.A., EN 109-Lugar da Pardala, 3880-728 São João de Ovar, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Correspondence: (B.R.); (B.C.); Tel.: +351-223-401-840 (B.R.); +351-223-401-838 (B.C.)
| | - Lourenço Ramos-Pinto
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Avenida General Norton de Matos, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal;
| | - Sara A. Cunha
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.A.C.); (M.P.)
| | - Manuela Pintado
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.A.C.); (M.P.)
| | - Joana Laranjeira da Silva
- Allmicroalgae, Natural Products SA, Industrial Microalgae Production, Apartado 9, 2449-909 Pataias, Portugal;
| | - Jorge Dias
- SPAROS Lda., Área Empresarial de Marim, Lote C, 8700-221 Olhão, Portugal; (J.D.); (L.C.)
| | - Luís Conceição
- SPAROS Lda., Área Empresarial de Marim, Lote C, 8700-221 Olhão, Portugal; (J.D.); (L.C.)
| | - Elisabete Matos
- Sorgal S.A., EN 109-Lugar da Pardala, 3880-728 São João de Ovar, Portugal
- B2E Associação para a Bioeconomia Azul—Laboratório Colaborativo, Av. Liberdade, UPTEC Mar, 4450-718 Leça da Palmeira, Portugal;
| | - Benjamín Costas
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Avenida General Norton de Matos, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal;
- Correspondence: (B.R.); (B.C.); Tel.: +351-223-401-840 (B.R.); +351-223-401-838 (B.C.)
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4
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Neves AL, Jácome C, Taveira-Gomes T, Pereira AM, Almeida R, Amaral R, Alves-Correia M, Mendes S, Chaves-Loureiro C, Valério M, Lopes C, Carvalho J, Mendes A, Ribeiro C, Prates S, Ferreira JA, Teixeira MF, Branco J, Santalha M, Vasconcelos MJ, Lozoya C, Santos N, Cardia F, Moreira AS, Taborda-Barata L, Pinto CS, Ferreira R, Morais Silva P, Monteiro Ferreira T, Câmara R, Lobo R, Bordalo D, Guimarães C, Espírito Santo M, Ferraz de Oliveira J, Cálix Augusto MJ, Gomes R, Vieira I, da Silva S, Marques M, Cardoso J, Morete A, Aroso M, Cruz AM, Nunes C, Câmara R, Rodrigues N, Abreu C, Albuquerque AL, Vieira C, Santos C, Páscoa R, Chaves-Loureiro C, Alves A, Neves Â, Varanda Marques J, Reis B, Ferreira-Magalhães M, Almeida Fonseca J. Determinants of the Use of Health and Fitness Mobile Apps by Patients With Asthma: Secondary Analysis of Observational Studies. J Med Internet Res 2021; 23:e25472. [PMID: 34550077 PMCID: PMC8495570 DOI: 10.2196/25472] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 04/01/2021] [Accepted: 06/14/2021] [Indexed: 12/23/2022] Open
Abstract
Background Health and fitness apps have potential benefits to improve self-management and disease control among patients with asthma. However, inconsistent use rates have been reported across studies, regions, and health systems. A better understanding of the characteristics of users and nonusers is critical to design solutions that are effectively integrated in patients’ daily lives, and to ensure that these equitably reach out to different groups of patients, thus improving rather than entrenching health inequities. Objective This study aimed to evaluate the use of general health and fitness apps by patients with asthma and to identify determinants of usage. Methods A secondary analysis of the INSPIRERS observational studies was conducted using data from face-to-face visits. Patients with a diagnosis of asthma were included between November 2017 and August 2020. Individual-level data were collected, including age, gender, marital status, educational level, health status, presence of anxiety and depression, postcode, socioeconomic level, digital literacy, use of health services, and use of health and fitness apps. Multivariate logistic regression was used to model the probability of being a health and fitness app user. Statistical analysis was performed in R. Results A total of 526 patients attended a face-to-face visit in the 49 recruiting centers and 514 had complete data. Most participants were ≤40 years old (66.4%), had at least 10 years of education (57.4%), and were in the 3 higher quintiles of the socioeconomic deprivation index (70.1%). The majority reported an overall good health status (visual analogue scale [VAS] score>70 in 93.1%) and the prevalence of anxiety and depression was 34.3% and 11.9%, respectively. The proportion of participants who reported using health and fitness mobile apps was 41.1% (n=211). Multivariate models revealed that single individuals and those with more than 10 years of education are more likely to use health and fitness mobile apps (adjusted odds ratio [aOR] 2.22, 95%CI 1.05-4.75 and aOR 1.95, 95%CI 1.12-3.45, respectively). Higher digital literacy scores were also associated with higher odds of being a user of health and fitness apps, with participants in the second, third, and fourth quartiles reporting aORs of 6.74 (95%CI 2.90-17.40), 10.30 (95%CI 4.28-27.56), and 11.52 (95%CI 4.78-30.87), respectively. Participants with depression symptoms had lower odds of using health and fitness apps (aOR 0.32, 95%CI 0.12-0.83). Conclusions A better understanding of the barriers and enhancers of app use among patients with lower education, lower digital literacy, or depressive symptoms is key to design tailored interventions to ensure a sustained and equitable use of these technologies. Future studies should also assess users’ general health-seeking behavior and their interest and concerns specifically about digital tools. These factors may impact both initial engagement and sustained use.
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Affiliation(s)
- Ana Luísa Neves
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Imperial NIHR Patient Safety Translational Research Centre, Institute of Global Health Innovation, Imperial College London, London, United Kingdom
| | - Cristina Jácome
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - Tiago Taveira-Gomes
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Institute of Research and Advanced Training in Health Sciences and Technologies, University Institute of Health Sciences, Cooperativa de Ensino Superior Politécnico e Universitário, CRL, Gandra, Portugal.,Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, Porto, Portugal
| | - Ana Margarida Pereira
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Allergy Unit, Instituto and Hospital CUF, Porto, Portugal
| | - Rute Almeida
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rita Amaral
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Cardiovascular and Respiratory Sciences, Porto Health School, Polytechnic Institute of Porto, Porto, Portugal.,Department of Women's and Children's Health, Paediatric Research, Uppsala University, Uppsala, Sweden
| | | | - Sandra Mendes
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | | | - Margarida Valério
- Serviço Pneumologia, Hospitais da Universidade de Coimbra, Coimbra, Portugal
| | - Cristina Lopes
- Unidade de Imunoalergologia, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal.,Imunologia Básica e Clínica, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Joana Carvalho
- Serviço de Pediatria, Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
| | - Ana Mendes
- Serviço de Imunoalergologia, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Lisboa, Portugal
| | - Carmelita Ribeiro
- Serviço de Imunoalergologia, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Sara Prates
- Serviço de Imunoalergologia, Hospital de Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - José Alberto Ferreira
- Serviço de Imunoalergologia, Unidade I, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Maria Fernanda Teixeira
- Serviço de Pediatria, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Joana Branco
- Serviço de Pneumologia, Hospital Beatriz Ângelo, Loures, Portugal
| | - Marta Santalha
- Serviço de Pediatria, Hospital da Senhora da Oliveira, Guimarães, Portugal
| | - Maria João Vasconcelos
- Serviço de Imunoalergologia, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Carlos Lozoya
- Serviço de Imunoalergologia, Hospital Amato Lusitano, Unidade Local de Saúde de Castelo Branco, Castelo Branco, Portugal
| | - Natacha Santos
- Serviço de Imunoalergologia, Centro Hospitalar Universitário do Algarve, Portimão, Portugal
| | - Francisca Cardia
- Unidade de Saúde Familiar Terras de Azurara, Agrupamento de Centros de Saúde Dão Lafões, Mangualde, Portugal
| | - Ana Sofia Moreira
- Unidade de Imunoalergologia, Hospital do Divino Espirito Santo, Ponta Delgada, Portugal
| | - Luís Taborda-Barata
- Department of Allergy & Clinical Immunology, Cova da Beira University Hospital Centre, Covilhã, Portugal.,Centro de Investigação em Ciências da Saúde - Health Sciences Research Centre & NuESA -Environment & Health Study Group, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Cláudia Sofia Pinto
- Serviço de Pneumologia, Hospital São Pedro de Vila Real, Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Rosário Ferreira
- Departamento de Pediatria, Hospital de Santa Maria, Centro Hospitalar de Lisboa Norte, Lisboa, Portugal
| | | | - Tania Monteiro Ferreira
- Unidade de Saúde Familiar Progresso e Saúde, Agrupamento de Centros de Saúde Baixo Mondego, Tocha, Portugal
| | - Raquel Câmara
- Serviço de Pneumologia, Hospital Nossa Senhora do Rosário, Centro Hospitalar Barreiro Montijo, Barreiro, Portugal
| | - Rui Lobo
- Unidade de Saúde Familiar João Semana, Agrupamento de Centros de Saúde Baixo Vouga, Ovar, Portugal
| | - Diana Bordalo
- Serviço de Pediatria, Unidade Hospitalar de Famalicão, Centro Hospitalar do Médio Ave, Vila Nova de Famalicão, Portugal
| | - Cristina Guimarães
- Unidade de Saúde Familiar Caminhos do Cértoma, Agrupamento de Centros de Saúde Baixo Mondego, Pampilhosa, Portugal
| | - Maria Espírito Santo
- Unidade de Saúde Familiar Arte Nova, Agrupamento de Centros de Saúde Baixo Vouga, Oliveirinha, Portugal
| | | | - Maria José Cálix Augusto
- Serviço de Pediatria, Hospital de São Teotónio, Centro Hospitalar Tondela-Viseu, Viseu, Portugal
| | - Ricardo Gomes
- Serviço de Pneumologia, Hospital Garcia de Orta, Almada, Portugal
| | - Inês Vieira
- Unidade de Cuidados Saúde Personalizados Arnaldo Sampaio, Agrupamento de Centros de Saúde Pinhal Litoral, Leiria, Portugal
| | - Sofia da Silva
- Unidade de Saúde Familiar Cuidarte, Unidade Local de Saúde do Alto Minho, Portuzelo, Portugal
| | - Maria Marques
- Serviço de Imunoalergologia, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - João Cardoso
- Serviço de Pneumologia, Hospital Santa Marta, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - Ana Morete
- Allergy Unit, Instituto and Hospital CUF, Porto, Portugal.,Serviço de Imunoalergologia, Hospital Infante D Pedro, Centro Hospitalar Baixo Vouga, Aveiro, Portugal
| | - Margarida Aroso
- Unidade de Saúde Familiar Pedras Rubras, Agrupamento de Centros de Saúde do Grande Porto III - Maia/Valongo, Maia, Portugal
| | - Ana Margarida Cruz
- Unidade de Saúde Familiar Bom Porto, Agrupamento de Centros de Saúde do Grande Porto V - Porto Ocidental, Porto, Portugal
| | - Carlos Nunes
- Imunoalergologia, Centro de Imunoalergologia do Algarve, Portimão, Portugal
| | - Rita Câmara
- Serviço de Imunoalergologia, Serviço de Saúde da Região Autónoma da Madeira, Funchal, Portugal
| | - Natalina Rodrigues
- Unidade de Saúde Familiar Mondego, Agrupamento de Centros de Saúde Baixo Mondego, Coimbra, Portugal
| | - Carmo Abreu
- Serviço de Imunoalergologia, Hospital São Pedro de Vila Real, Centro Hospitalar De Trás-Os-Montes E Alto Douro, Vila Real, Portugal
| | - Ana Luísa Albuquerque
- Unidade de Saúde Familiar Coimbra Centro, Agrupamento de Centros de Saúde Baixo Mondego, Coimbra, Portugal
| | - Claúdia Vieira
- Unidade de Saúde Familiar Corgo, Agrupamentos de Centros de Saúde Douro I - Marão e Douro Norte, Vila Real, Portugal
| | - Carlos Santos
- Unidade de Saúde Familiar Santo António, Agrupamento de Centros de Saúde do Cávado III - Barcelos/Esposende, Barcelos, Portugal
| | - Rosália Páscoa
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Unidade de Saúde Familiar Abel Salazar, Agrupamento de Centros de Saúde do Gaia, Vila Nova de Gaia, Portugal
| | - Carla Chaves-Loureiro
- Serviço Pediatria Ambulatória, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Adelaide Alves
- Serviço de Pneumologia, Unidade I, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Ângela Neves
- Unidade de Saúde Familiar Araceti, Agrupamento de Centros de Saúde Baixo Mondego, Arazede, Portugal
| | - José Varanda Marques
- Unidade de Saúde Familiar Viseu-Cidade, Agrupamento de Centros de Saúde do Dão Lafões, Viseu, Portugal
| | - Bruno Reis
- Unidade de Cuidados Saúde Personalizados Sicó, Agrupamento de Centros de Saúde Pinhal Litoral, Leiria, Portugal
| | - Manuel Ferreira-Magalhães
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal.,Serviço de Pediatria, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - João Almeida Fonseca
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
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Lepski G, Reis B, de Oliveira A, Neville I. Recursive partitioning analysis of factors determining infection after intracranial tumor surgery. Clin Neurol Neurosurg 2021; 205:106599. [PMID: 33901746 DOI: 10.1016/j.clineuro.2021.106599] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 03/11/2021] [Accepted: 03/14/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Several factors are commonly associated with the occurrence of post-operative infection after craniotomy. However, the risk factors associated with tumor surgery have been less intensively investigated. The aim of the present study was to analyze the risk factors for infection and categorize patients according to risk rate. METHODS In this study, we retrospectively evaluated 987 adult patients consecutively submitted to craniotomy for tumor resection. The primary outcome was the occurrence of infection within 30 days after surgery. The following independent variables were assessed: age, gender, surgery duration, length of hospital stay prior to surgery, reoperation, body mass index, serum albumin, hemoglobin, lactic dehydrogenase, smoking, diabetes, corticoid use, preoperative chemotherapy, previous irradiation, elective or urgent indication for surgery, supra or infratentorial lesion location, and tumor histology. We performed a recursive partitioning analysis to assess the relative importance of these variables in predicting infection. RESULTS The model returned a 3-level classification: 1. CSF-leakage (relative contribution 70%), 2. Emergency surgery indication (18%), and 3. Tumor histology (8%). Additionally, partitioning clustered together 3 risk groups: 1. CSF-leakage group (probability of infection 72.5%), 2. No CSF-leakage and urgent surgery (mean probability 18.1%); and 3. no CSF-leakage and no urgent surgery (3.4%). The misclassification rate was 4.5%, the overall specificity and sensitivity were 99.6% and 75.5%, respectively, and the area under the ROC-curve was 0.6908. CONCLUSION Our analysis indicates that technical and treatment-related factors are significantly more relevant than patient- or disease-related factors in determining the risk of postoperative infection.
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Affiliation(s)
- Guilherme Lepski
- Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, LIM26, São Paulo, Brazil; Department of Neurosurgery, University Eberhard Karls, Tübingen, Germany.
| | - Bruno Reis
- Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, LIM26, São Paulo, Brazil
| | - Adilson de Oliveira
- Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, LIM26, São Paulo, Brazil
| | - Iuri Neville
- Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, LIM26, São Paulo, Brazil
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Andrade RGD, Reis B, Costas B, Lima SAC, Reis S. Modulation of Macrophages M1/M2 Polarization Using Carbohydrate-Functionalized Polymeric Nanoparticles. Polymers (Basel) 2020; 13:polym13010088. [PMID: 33379389 PMCID: PMC7796279 DOI: 10.3390/polym13010088] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 12/13/2022] Open
Abstract
Exploiting surface endocytosis receptors using carbohydrate-conjugated nanocarriers brings outstanding approaches to an efficient delivery towards a specific target. Macrophages are cells of innate immunity found throughout the body. Plasticity of macrophages is evidenced by alterations in phenotypic polarization in response to stimuli, and is associated with changes in effector molecules, receptor expression, and cytokine profile. M1-polarized macrophages are involved in pro-inflammatory responses while M2 macrophages are capable of anti-inflammatory response and tissue repair. Modulation of macrophages’ activation state is an effective approach for several disease therapies, mediated by carbohydrate-coated nanocarriers. In this review, polymeric nanocarriers targeting macrophages are described in terms of production methods and conjugation strategies, highlighting the role of mannose receptor in the polarization of macrophages, and targeting approaches for infectious diseases, cancer immunotherapy, and prevention. Translation of this nanomedicine approach still requires further elucidation of the interaction mechanism between nanocarriers and macrophages towards clinical applications.
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Affiliation(s)
- Raquel G. D. Andrade
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Bruno Reis
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (B.R.); (B.C.); (S.R.)
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal
| | - Benjamin Costas
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (B.R.); (B.C.); (S.R.)
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal
| | - Sofia A. Costa Lima
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Correspondence:
| | - Salette Reis
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; (B.R.); (B.C.); (S.R.)
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7
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Yebra-Pimentel ES, Reis B, Gessner J, Wuertz S, Dirks RPH. Temperature training improves transcriptional homeostasis after heat shock in juvenile Atlantic sturgeon (Acipenser oxyrinchus). Fish Physiol Biochem 2020; 46:1653-1664. [PMID: 32583280 DOI: 10.1007/s10695-020-00818-4] [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] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
Exposure to high temperatures can lead to thermotolerance in fish, which is hypothesized to potentially improve post-release survival in species under restocking programs, like Atlantic sturgeon. The aim of this study was to determine whether Atlantic sturgeon juveniles exposed to a 4-week temperature treatment respond differently to a subsequent heat shock than juveniles exposed to heat shock for the first time (naive fish). Response to heat shock was assessed by mapping the liver transcriptome. In total, 838 unique contigs were differentially expressed between the trained and the control group (592 downregulated, 261 upregulated, and 15 down- or upregulated, depending on the condition), corresponding to genes involved in the response to heat, tissue damage, proteolysis, and metabolism. Temperature-trained fish showed 2-4-fold fewer dysregulated contigs than naive fish, indicating their ability to maintain and recover homeostasis faster. During heat shock, hspc1 was upregulated in both experimental groups, while hspa1 and dnaja4 were exclusively upregulated in the control. Overall, compensatory mechanisms were observed in addition to the heat shock response. Only two genes, fgg and apnl, were upregulated at nearly all timepoints in both groups. Peptidases were more strongly downregulated in control fish, which also showed a reduction in lipid metabolism during recovery. Keratins, pck1, gadd45ga, and gadd45gb were differentially expressed between trained and control fish, and due to their roles in tissue protection and ER stress reduction, they might be responsible for the maintenance of the transcriptional homeostasis observed in trained fish.
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Affiliation(s)
- Elena Santidrián Yebra-Pimentel
- ZF-screens B.V., 2333 CH, Leiden, The Netherlands.
- Department of Basic Sciences and Aquatic Medicine, Norwegian University of Life Sciences, 0454, Oslo, Norway.
| | - Bruno Reis
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, 4450-208, Matosinhos, Portugal
| | - Jörn Gessner
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Sven Wuertz
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
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8
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Rodrigues J, Leite B, Vasconcellos G, Dias LA, Muniz MJ, Espinosa MV, Nishida N, Ferrero MV, Reis B, Cabral ER. Socioeconomic and environmental status of riverside communities of Tapajós River, Brazil. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.333] [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
Public health care acknowledges socioeconomic factors as one of the multiple facets to promote or protect individual or collective health. Understanding and being more acquainted with the dynamics carried out in riverside communities is fundamental to investing in policies aimed at fighting diseases and illnesses that are particular to those communities.
Objective
Describing socioeconomic characteristics, healthcare infrastructure, and occupational activities of population from riverside communities along Tapajós river, Brazil.
Methodology
A descriptive study with 96 residents of communities of Tapajós river, Brazil. Participants have answered a semi-structure questionnaire and the analyses were descriptive and the variable categories were expressed as frequencies.
Results
There was a predominance of male participants (77.09%), incomplete elementary school (58.51%), involved in agricultural sector (85.10%), with a family income up to 1 minimum wage (68.81%). However, only 21.50% have declared making their living exclusively out of agriculture. Seedlings and seeds are mainly obtained through an exchange system running inside the community. In relation to infrastructure, the water comes from artesian wells (68.88%) and 51.63% claim not treating water whatsoever. All interviewees mentioned the lack of a sewage system and residues are taken to a rudimentary cesspool (76.59%). Waste produced by the community is burned out (93.61%). The main difficulties pointed out by the interviewees were: transportation (44.94%), health (32.14%), communication (21.42%) and government cooperation (15.47%).
Conclusions
The communities in this project show similar structural dynamic based on subsistence family agriculture and poor infrastructure of basic services. The data collected can be the basis for future public policies aiming at the promotion of food production autonomy, economic autonomy, and improvement of health indicators of these communities.
Key messages
Contextualizing the structural dynamic of vulnerable populations is key to plan actions aimed at tackling and dealing with social determinants involved in the health-illness process. Contextualizing the structural dynamic of vulnerable populations is fundamental to guide strategies aimed at intervening in the social and health determinants.
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Affiliation(s)
- J Rodrigues
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - B Leite
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - G Vasconcellos
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - L A Dias
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - M J Muniz
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - M V Espinosa
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - N Nishida
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - M V Ferrero
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - B Reis
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - E R Cabral
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
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9
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Espinosa MV, Reis B, de Oliveira A, Bertaglia L, Rodrigues J, França JN, Ferrero MV, Dias LA, Oliveira AM, Moreira A. Quality of life assement of riverside communities of Tapajós and Cupari Rivers in Pará. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.811] [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
Riverside population lack basic sanitation infrastructure and access to healthcare. In addition, locals encounter difficulties in accessing basic health care due to climate variability and fluvial activity which results in tidal distortion and attenuation. Quality of life is a broad concept and its measurement should be useful to identify determining and conditioning factors in health-illness process which would be key to the guidance of health public policy measures in a specific community. This study aims at assessing the quality of life of Tapajós and Cupari riverside communities in Pará, Brazil.
Methods
A cross-sectional and descriptive study composed of a group of patients aged 18 and over who have sought care during the volunteer health expedition in the Tapajós and Cupari rivers between mid-July and August 2019. The team of students and professors conducting the survey adopted the WHOQOL-bref questionnaire as a measure of quality of life. The questionnaire consists of 25 questions and 5 domains: physical health, psychological, social relationships, environment, and self-assessment of quality of life. Individual scores vary between 4 and 20. Scores ≤ 10 suggest low quality of life whereas >10 suggest higher quality of life. This statistical analysis was carried out in the SPSS program and was described by means of summary measures: minimum, maximum, median, and standard deviation. Outcomes:The five domains scored >10, with the highest being the psychological domain (16,48, dp = 1,71) and the lowest the environment (14,12 dp = 1,99).
Conclusions
In spite of inherent difficulties generally found in riverside communities, participants reported high perception of quality of life in all domains. The lowest overall perception was the environment domain. This result confirms not only the barriers of physical infrastructure but also access to quality services as a negative health and life determinant.
Key messages
Assessing the quality of life is key to determine which factors influence the health-illness process within a community. Assessing the quality of life is fundamental to guide strategies aimed at intervening in social determinants.
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Affiliation(s)
- M V Espinosa
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - B Reis
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - A de Oliveira
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - L Bertaglia
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - J Rodrigues
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - J N França
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - M V Ferrero
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - L A Dias
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - A M Oliveira
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
| | - A Moreira
- Public Health, São Leopoldo Mandic University, Campinas, Brazil
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Ramos-Pinto L, Martos-Sitcha JA, Reis B, Azeredo R, Fernandez-Boo S, Pérez-Sánchez J, Calduch-Giner JA, Engrola S, Conceição LEC, Dias J, Silva TS, Costas B. Dietary tryptophan supplementation induces a transient immune enhancement of gilthead seabream (Sparus aurata) juveniles fed fishmeal-free diets. Fish Shellfish Immunol 2019; 93:240-250. [PMID: 31310850 DOI: 10.1016/j.fsi.2019.07.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/12/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
European aquaculture is an industry with a high sustainability profile contributing to the supply of safe seafood. However, several diseases can affect farmed fish and it is imperative to find alternatives for chemotherapeutic treatments when disease outbreaks occur. Maintenance of health through nutrition is well-establish in modern animal farming, and amino acids (AA) are promising candidates as functional additives to improve fish health. Therefore, the goal of this research is to provide a better understanding of the influence of tryptophan supplementation on nutritional condition and immune mechanisms in fish. Triplicate groups of fish (13.3 ± 0.3g) previously fed with a fishmeal-based diet were either fed a control diet with an extreme formulation (0% fishmeal) but meeting the AA requirements (CTRL), or the SUP diet, formulated as the CTRL with an increase in tryptophan (TRP) content. After 2 and 13 weeks of feeding, head-kidney (HK), liver (L) and white skeletal muscle (WSM) were collected for gene expression, whereas plasma was suited for humoral immune parameters. A holistic approach using transcriptomic, humoral and zootechnical parameters was undertaken. The expression of 29-31 genes for WSM, L or HK confirms an effect due to the treatment across time. A two-way ANOVA analysis revealed that 15-24 genes varied significantly depending on the tissue, and the multivariate analysis by means of PLS-DA explained (R2) and predicted (Q2) with four components up to 93% and 78% of total variance, respectively. Component 1 (R2 = 50.06%) represented the time effects, whereas components 2 (24.36%) and 3 (13.89%) grouped fish on the basis of dietary treatment, at early sampling. The HK results in particular suggest that fish fed SUP diet displayed an immunostimulated state at 2 weeks. No major differences were observed in plasma humoral parameters, despite an increase in antiprotease and peroxidase activities after 13 weeks regardless of dietary treatment. These results suggest that tryptophan supplementation may improve the seabream immune status after 2 weeks. Hence, the use of functional feeds is especially relevant during a short-term feeding period before a predictable stressful event or disease outbreak, considering that these putative advantageous effects seem to disappear after a 13 weeks feeding period.
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Affiliation(s)
- Lourenço Ramos-Pinto
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira nº 228, 4050-313, Porto, Portugal; SPAROS Lda, Área Empresarial de Marim, Lote C, 8700-221, Olhão, Portugal.
| | - Juan A Martos-Sitcha
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595, Castellón, Spain
| | - Bruno Reis
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira nº 228, 4050-313, Porto, Portugal; SPAROS Lda, Área Empresarial de Marim, Lote C, 8700-221, Olhão, Portugal; SORGAL, Sociedade de Óleos e Rações, S.A, Estrada Nacional 109, Lugar da Pardala, 3880-728, S. João de Ovar, Portugal
| | - Rita Azeredo
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira nº 228, 4050-313, Porto, Portugal
| | - Sergio Fernandez-Boo
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
| | - Jaume Pérez-Sánchez
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595, Castellón, Spain
| | - Josep Alvar Calduch-Giner
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595, Castellón, Spain
| | - Sofia Engrola
- CCMAR, Centro de Ciências do Mar, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal
| | - Luis E C Conceição
- SPAROS Lda, Área Empresarial de Marim, Lote C, 8700-221, Olhão, Portugal
| | - Jorge Dias
- SPAROS Lda, Área Empresarial de Marim, Lote C, 8700-221, Olhão, Portugal
| | - Tomé S Silva
- SPAROS Lda, Área Empresarial de Marim, Lote C, 8700-221, Olhão, Portugal
| | - Benjamín Costas
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira nº 228, 4050-313, Porto, Portugal.
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11
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Gomez-Roca CA, Italiano A, Le Tourneau C, Cassier PA, Toulmonde M, D'Angelo SP, Campone M, Weber KL, Loirat D, Cannarile MA, Jegg AM, Ries C, Christen R, Meneses-Lorente G, Jacob W, Klaman I, Ooi CH, Watson C, Wonde K, Reis B, Michielin F, Rüttinger D, Delord JP, Blay JY. Phase I study of emactuzumab single agent or in combination with paclitaxel in patients with advanced/metastatic solid tumors reveals depletion of immunosuppressive M2-like macrophages. Ann Oncol 2019; 30:1381-1392. [PMID: 31114846 PMCID: PMC8887589 DOI: 10.1093/annonc/mdz163] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND Emactuzumab is a monoclonal antibody against the colony-stimulating factor-1 receptor and targets tumor-associated macrophages (TAMs). This study assessed the safety, clinical activity, pharmacokinetics (PK) and pharmacodynamics (PD) of emactuzumab, as monotherapy and in combination with paclitaxel, in patients with advanced solid tumors. PATIENTS AND METHODS This open-label, phase Ia/b study comprised two parts (dose escalation and dose expansion), each containing two arms (emactuzumab, every 2 or 3 weeks, as monotherapy or in combination with paclitaxel 80 mg/m2 weekly). The dose-escalation part explored the maximum tolerated dose and optimal biological dose (OBD). The dose-expansion part extended the safety assessment and investigated the objective response rate. A PK/PD analysis of serial blood, skin and tumor biopsies was used to explore proof of mechanism and confirm the OBD. RESULTS No maximum tolerated dose was reached in either study arm, and the safety profile of emactuzumab alone and in combination does not appear to preclude its use. No patients receiving emactuzumab monotherapy showed an objective response; the objective response rate for emactuzumab in combination with paclitaxel was 7% across all doses. Skin macrophages rather than peripheral blood monocytes or circulating colony-stimulating factor-1 were identified as an optimal surrogate PD marker to select the OBD. Emactuzumab treatment alone and in combination with paclitaxel resulted in a plateau of immunosuppressive TAM reduction at the OBD of 1000 mg administered every 2 weeks. CONCLUSIONS Emactuzumab showed specific reduction of immunosuppressive TAMs at the OBD in both treatment arms but did not result in clinically relevant antitumor activity alone or in combination with paclitaxel. (ClinicalTrials.gov Identifier: NCT01494688).
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Affiliation(s)
- C A Gomez-Roca
- Department of Medicine & Clinical Research Unit, Institut Claudius Regaud/Institut Universitaire du Cancer de Toulouse (IUCT-Oncopole), Toulouse.
| | - A Italiano
- Department of Medical Oncology, Institut Bergonié, Bordeaux.
| | - C Le Tourneau
- Department of Drug Development and Innovation, Institut Curie, Paris & Saint-Cloud; INSERM U900 Research Unit, Saint-Cloud; Paris-Saclay University, Paris
| | - P A Cassier
- Department of Medicine, Centre Léon Bérard, Lyon, France
| | - M Toulmonde
- Department of Medical Oncology, Institut Bergonié, Bordeaux
| | - S P D'Angelo
- Memorial Sloan Kettering Cancer Center, New York; Weill Cornell Medical College, New York, USA
| | - M Campone
- ICO René Gauducheau, Saint-Herblain, France
| | - K L Weber
- Department of Orthopedic Oncology, Penn Medicine, Pennsylvania, USA
| | - D Loirat
- Department of Drug Development and Innovation, Institut Curie, Paris & Saint-Cloud
| | - M A Cannarile
- Roche Innovation Center Munich, Roche Pharmaceutical Research and Early Development, Penzberg, Germany
| | - A-M Jegg
- Roche Innovation Center Munich, Roche Pharmaceutical Research and Early Development, Penzberg, Germany
| | - C Ries
- Roche Innovation Center Munich, Roche Pharmaceutical Research and Early Development, Penzberg, Germany
| | - R Christen
- Licensing and Early Development (LEAD) Safety Science, Roche Innovation Center Basel, Basel, Switzerland
| | - G Meneses-Lorente
- Roche Innovation Center Welwyn, Roche Pharmaceutical Research and Early Development, Welwyn Garden City
| | - W Jacob
- Roche Innovation Center Munich, Roche Pharmaceutical Research and Early Development, Penzberg, Germany
| | - I Klaman
- Roche Innovation Center Munich, Roche Pharmaceutical Research and Early Development, Penzberg, Germany
| | - C-H Ooi
- Licensing and Early Development (LEAD) Safety Science, Roche Innovation Center Basel, Basel, Switzerland
| | - C Watson
- A4P Consulting Ltd, Sandwich, UK
| | - K Wonde
- Licensing and Early Development (LEAD) Safety Science, Roche Innovation Center Basel, Basel, Switzerland
| | - B Reis
- Licensing and Early Development (LEAD) Safety Science, Roche Innovation Center Basel, Basel, Switzerland
| | - F Michielin
- Licensing and Early Development (LEAD) Safety Science, Roche Innovation Center Basel, Basel, Switzerland
| | - D Rüttinger
- Roche Innovation Center Munich, Roche Pharmaceutical Research and Early Development, Penzberg, Germany
| | - J-P Delord
- Department of Drug Development and Innovation, Institut Curie, Paris & Saint-Cloud
| | - J-Y Blay
- Department of Medicine & Clinical Research Unit, Institut Claudius Regaud/Institut Universitaire du Cancer de Toulouse (IUCT-Oncopole), Toulouse
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Reis B, Pereira M, Rigueiro A, Millen D, Silvestre A, Squizatti M, Felizari L, Arrigoni M, Millen D. PSXII-5 Rumen tissue histology of Nellore cattle submitted to either nutritional restriction or intake of concentrate feedstuffs prior to adaptation period. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- B Reis
- Sāo Paulo State University (UNESP), Animal Science College,Dracena, Sao Paulo, Brazil
| | - M Pereira
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science,Botucatu, São Paulo,Brazil 18618-000,Sao Paulo, Brazil
| | - A Rigueiro
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science,Botucatu, São Paulo,Brazil 18618-000,Sao Paulo, Brazil
| | - D Millen
- São Paulo State University (UNESP), College of Technology and Agricultural Sciences,Dracena, São Paulo, Brazil 17900-000, Sao Paulo, Brazil
| | - A Silvestre
- Sāo Paulo State University (UNESP), Animal Science College,Dracena, Sao Paulo, Brazil
| | - M Squizatti
- Sāo Paulo State University (UNESP), Animal Science College,Dracena, Sao Paulo, Brazil
| | - L Felizari
- Sāo Paulo State University (UNESP), Animal Science College,Dracena, Sao Paulo, Brazil
| | - M Arrigoni
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science,Botucatu, São Paulo,Brazil 18618-000,Sao Paulo, Brazil
| | - D Millen
- Sāo Paulo State University (UNESP), Animal Science College,Dracena, Sao Paulo, Brazil
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Hoffmann C, Sarturi J, Reis B, Miller M, Brashears M, Millen D, Milopoulos J, Opheim T. PSVII-9 Ruminal papillae morphology and volatile fatty acid profile of beef feedlot steers fed L. salivarius L28 in replacement for tylosin. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C Hoffmann
- Texas Tech University,Lubbock, TX, United States
| | - J Sarturi
- Texas Tech University,Lubbock, TX, United States
| | - B Reis
- Sāo Paulo State University (UNESP), Animal Science College,Dracena, São Paulo, Brazil 17900-000, Sao Paulo, Brazil
| | - M Miller
- Texas Tech University,Canyon, TX, United States
| | - M Brashears
- Texas Tech University,Canyon, TX, United States
| | - D Millen
- Sāo Paulo State University (UNESP), Animal Science College,Dracena, São Paulo, Brazil 17900-000, Sao Paulo, Brazil
| | - J Milopoulos
- Texas Tech University,Lubbock, TX, United States
| | - T Opheim
- Texas Tech University,Canyon, TX, United States
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Carvalho D, Bozzi R, Coltro A, Reis B, Scheinkman J. Spermatocytic Seminoma with Sarcomatous Transformation: The First Brazilian Case Report. jus 2018. [DOI: 10.4274/jus.1652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Antas P, Carneiro M, Reis B, Castelo-Branco R, Azevedo J, Urbatzka R, Campos A, Vasconcelos V, Martins JC. GST transcriptional changes induced by a toxic Microcystis aeruginosa strain in two bivalve species during exposure and recovery phases. Ecotoxicology 2018; 27:1272-1280. [PMID: 30242593 DOI: 10.1007/s10646-018-1980-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/31/2018] [Indexed: 06/08/2023]
Abstract
Previous studies have demonstrated the modulation of glutathione transferases (GSTs) induced by microcystin (MC) alone or in combination with other cyanobacterial secondary metabolites in bivalves. However, interspecies information about which and how GST isoforms are affected by these secondary metabolites is still scarce, especially considering the dynamic process involving their uptake and elimination routes. In this context, the role of GSTs gene expression changes in response to a toxic Microcystis aeruginosa extract were examined for Mytilus galloprovincialis and Ruditapes philippinarum during exposure and recovery phases. The expression levels of sigma 1, sigma 2, pi and mu-class GST genes were analyzed in the hepatopancreas of both bivalve species during cyanobacteria extract exposure (24 h) and post-exposure (24 and 72 h). Only a significant induction of sigma 1-class GST expression was observed for R. philippinarum upon 24-hour exposure of both bivalve species to Microcystis extract. During the recovery phase, GST transcriptional changes for M. galloprovincialis were characterized by an early induction (24 h) of sigma 1 and sigma 2 transcripts. On the other hand, GST transcriptional changes for R. philippinarum during post-exposure phase were characterized by an early induction (24 h) of sigma 1 and mu transcripts and a later induction (72 h) of the four analyzed GST transcripts. Such differences reflect variable GST response mechanisms to cope with MC-producing cyanobacterial blooms exposure between these two bivalve species, revealing a higher sensitivity of R. philippinarum to Microcystis-induced stress than M. galloprovincialis. The results also suggest a much higher level of activity of the GST detoxification system during the recovery phase compared to the period of the stress exposure for both bivalve species.
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Affiliation(s)
- Paulo Antas
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Mariana Carneiro
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Bruno Reis
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Raquel Castelo-Branco
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Joana Azevedo
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Ralph Urbatzka
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Alexandre Campos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Vítor Vasconcelos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
- Department of Biology, Faculty of Sciences, Porto University, Rua do Campo Alegre, Porto, 4069-007, Portugal
| | - José Carlos Martins
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal.
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Carneiro M, Antas P, Reis B, Azevedo J, Osório H, Campos A, Vasconcelos V, Martins JC. Modulation of hepatic glutathione transferases isoenzymes in three bivalve species exposed to purified microcystin-LR and Microcystis extracts. Toxicon 2017; 137:150-157. [PMID: 28688807 DOI: 10.1016/j.toxicon.2017.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 04/25/2017] [Accepted: 07/04/2017] [Indexed: 12/14/2022]
Abstract
This study compares the role of hepatic cytosolic glutathione transferases (cGST) isoforms of three different bivalve species to a Microcystis aeruginosa extract and purified MC-LR exposure (both at 150 μg MC-LR L-1) for 24 h. Characterization and alterations of the cytosolic GST activities in Mytilus galloprovincialis, Ruditapes philippinarum and Corbicula fluminea were measured using four class-specific substrates and changes in individual GST isoforms expression were achieved by a subsequent two-dimensional electrophoresis analysis. Evaluation of cGST activity basal levels using the four class-specific substrates denoted quantitative differences between the three bivalves. Purified MC-LR did not induce any significant response from bivalves. On the other hand, cell extracts caused significant alterations according to bivalves and substrates. Among the three bivalves, only R. philippinarum showed a significant induction of cGST activity using generic 1-chloro-2,4-dinitrobenzene (CDNB) substrate. However, no significant alterations were detected in these clams by cell extracts using the other specific substrates. In contrast, C. fluminea revealed significant induction of cGST activity when using 3,4-dichloronitrobenzene (DCNB) and ethacrynic acid (EA). In M. galloprovincialis, cell extracts promoted a significant decrease of cGST activity when using EA substrate. Altered protein expression was quantitatively detected upon exposure to cell extracts for one spot in R. philippinarum and another for C. fluminea, both upregulated (2.0 and 8.5-fold, respectively) and identified as a sigma1-class GST in the case of the first. The results showed that the three bivalves presented specific adaptive biotransformation responses to MCs and other cyanobacteria compounds supported by the modulation of distinct cGST classes.
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Affiliation(s)
- M Carneiro
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - P Antas
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - B Reis
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - J Azevedo
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - H Osório
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; Ipatimup, Institute of Molecular Pathology and Immunology of the University of Porto, Rua Júlio Amaral de Carvalho, 45, 4200-135, Porto, Portugal; Department of Pathology and Oncology, Faculty of Medicine, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal
| | - A Campos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - V Vasconcelos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal; Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - J C Martins
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal.
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Reis B, Carneiro M, Machado J, Azevedo J, Vasconcelos V, Martins JC. Transcriptional responses of glutathione transferase genes in Ruditapes philippinarum exposed to microcystin-LR. Int J Mol Sci 2015; 16:8397-414. [PMID: 25884330 PMCID: PMC4425088 DOI: 10.3390/ijms16048397] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/20/2015] [Accepted: 04/03/2015] [Indexed: 11/16/2022] Open
Abstract
Glutathione Transferases (GSTs) are phase II detoxification enzymes known to be involved in the molecular response against microcystins (MCs) induced toxicity. However, the individual role of the several GST isoforms in the MC detoxification process is still unknown. In this study, the time-dependent changes on gene expression of several GST isoforms (pi, mu, sigma 1, sigma 2) in parallel with enzymatic activity of total GST were investigated in gills and hepatopancreas of the bivalve Ruditapes philippinarum exposed to pure MC-LR (10 and 100 µg/L). No significant changes in GST enzyme activities were found on both organs. In contrast, MC-LR affected the transcriptional activities of these detoxification enzymes both in gills and hepatopancreas. GST transcriptional changes in gills promoted by MC-LR were characterized by an early (12 h) induction of mu and sigma 1 transcripts. On the other hand, the GST transcriptional changes in hepatopancreas were characterized by a later induction (48 h) of mu transcript, but also by an early inhibition (6 h) of the four transcripts. The different transcription patterns obtained for the tested GST isoforms in this study highlight the potential divergent physiological roles played by these isoenzymes during the detoxification of MC-LR.
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Affiliation(s)
- Bruno Reis
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - Mariana Carneiro
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - João Machado
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - Joana Azevedo
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - Vitor Vasconcelos
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4069-007 Porto, Portugal.
| | - José Carlos Martins
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
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Smith M, Murphy D, Laxmisan A, Sittig D, Reis B, Esquivel A, Singh H. Developing software to "track and catch" missed follow-up of abnormal test results in a complex sociotechnical environment. Appl Clin Inform 2013; 4:359-75. [PMID: 24155789 DOI: 10.4338/aci-2013-04-ra-0019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [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: 04/05/2013] [Accepted: 07/08/2013] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Abnormal test results do not always receive timely follow-up, even when providers are notified through electronic health record (EHR)-based alerts. High workload, alert fatigue, and other demands on attention disrupt a provider's prospective memory for tasks required to initiate follow-up. Thus, EHR-based tracking and reminding functionalities are needed to improve follow-up. OBJECTIVES The purpose of this study was to develop a decision-support software prototype enabling individual and system-wide tracking of abnormal test result alerts lacking follow-up, and to conduct formative evaluations, including usability testing. METHODS We developed a working prototype software system, the Alert Watch And Response Engine (AWARE), to detect abnormal test result alerts lacking documented follow-up, and to present context-specific reminders to providers. Development and testing took place within the VA's EHR and focused on four cancer-related abnormal test results. Design concepts emphasized mitigating the effects of high workload and alert fatigue while being minimally intrusive. We conducted a multifaceted formative evaluation of the software, addressing fit within the larger socio-technical system. Evaluations included usability testing with the prototype and interview questions about organizational and workflow factors. Participants included 23 physicians, 9 clinical information technology specialists, and 8 quality/safety managers. RESULTS Evaluation results indicated that our software prototype fit within the technical environment and clinical workflow, and physicians were able to use it successfully. Quality/safety managers reported that the tool would be useful in future quality assurance activities to detect patients who lack documented follow-up. Additionally, we successfully installed the software on the local facility's "test" EHR system, thus demonstrating technical compatibility. CONCLUSION To address the factors involved in missed test results, we developed a software prototype to account for technical, usability, organizational, and workflow needs. Our evaluation has shown the feasibility of the prototype as a means of facilitating better follow-up for cancer-related abnormal test results.
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Affiliation(s)
- M Smith
- Houston VA HSR&D Center of Excellence and The Center of Inquiry to Improve Outpatient Safety Through Effective Electronic Communication, Michael E. DeBakey Veterans Affairs Medical Center and the Section of Health Services Research, Department of Medicine, Baylor College of Medicine , Houston, Texas
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Silva P, Rocha MJ, Cruzeiro C, Malhão F, Reis B, Urbatzka R, Monteiro RAF, Rocha E. Testing the effects of ethinylestradiol and of an environmentally relevant mixture of xenoestrogens as found in the Douro River (Portugal) on the maturation of fish gonads--a stereological study using the zebrafish (Danio rerio) as model. Aquat Toxicol 2012; 124-125:1-10. [PMID: 22885794 DOI: 10.1016/j.aquatox.2012.07.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 07/01/2012] [Accepted: 07/04/2012] [Indexed: 06/01/2023]
Abstract
In natural environments fish populations are exposed to many potential xenoestrogens, whereby understanding the impacts of mixtures continue to be of great interest. The main objective of this study was, therefore, to understand whether and how an environmentally relevant mixture of xenoestrogens found in the Douro River estuary can disrupt the normal gametogenesis in fish. For this purpose, adult zebrafish of both sexes were exposed for 21 days to an environmental mixture (MIX) of 11 xenoestrogens from diverse sources. A 100 ng/L ethinylestradiol (EE2) positive control was added. A quantitative (stereological) analysis with systematic sampling was made in the gonads, and using light microscopy both the relative and the absolute volumes of the gametogenic stages were estimated. Data point that the EE2 stimulus induced changes in structural compartments; with decreasing trends for the advanced maturation stages both in males and females. There was also a trend for a greater amount of interstitial tissue in males. Along with an interstitial fibrosis increase detected, the presence of a proteinaceous fluid was observed in both sexes and experimental groups (EE2 and MIX). Other histopathologic alterations were observed in the EE2 female group, such as the presence of foci of granulomatous inflammation and follicular mineralization in the germinal parenchyma and luminal areas. The most interesting finding of this study was that the exposure to the MIX caused a decrease of the relative volume of spermatozoa in zebrafish. This kind of estrogenic effect has not earlier been structurally quantified in such a fine detail with unbiased stereology in fish gonads. Despite the ultimate consequences of such disruptions being unknown, it could be logically argued that reduction or slowing-down of the appearance of the most mature cohorts and/or eventual interstitial fibrosis and other pathologic changes can adversely affect breeding. The findings add further explanatory bases for understanding the negative impacts of xenoestrogens.
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Affiliation(s)
- Paula Silva
- Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto (U.Porto), Porto, Portugal
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Urbatzka R, Rocha E, Reis B, Cruzeiro C, Monteiro RAF, Rocha MJ. Effects of ethinylestradiol and of an environmentally relevant mixture of xenoestrogens on steroidogenic gene expression and specific transcription factors in zebrafish. Environ Pollut 2012; 164:28-35. [PMID: 22318008 DOI: 10.1016/j.envpol.2012.01.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 01/10/2012] [Accepted: 01/15/2012] [Indexed: 05/31/2023]
Abstract
In natural environments fish are exposed to endocrine disrupting compounds (EDCs) present at low concentrations and with different modes of actions. Here, adult zebrafish of both sexes were exposed for 21 days to an estrogenic mixture (Mix) of eleven EDCs previously quantified in Douro River estuary (Portugal) and to 100 ng/L 17α-ethinylestradiol (EE2) as positive control. Vitellogenin mRNA and HSI in males confirmed both exposure regimes as physiologically active. Potential candidates for estrogenic disturbance of steroidogenesis were identified (StAR, 17β-HSD1, cyp19a1), but Mix only affected cyp19a1 in females. Significant differences in the response of FSHβ, cypa19a2, 20β-HSD were observed between EE2 and Mix. Mtf-1 and tfap2c transcription factor binding sites were discovered in the putative promoter regions and corresponding transcription factors were found to be differentially expressed in response to Mix and EE2. The results suggest that "non-classical effects" of estrogenic EDC in fish are mediated via transcription factors.
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Affiliation(s)
- R Urbatzka
- Laboratory of Cellular, Molecular and Analytical Studies (LECEMA), Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), CIMAR Associated Laboratory (CIMAR LA), University of Porto (U.Porto), Rua dos Bragas 289, 4050-123 Porto, Portugal.
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Gomes M, Gandini A, Silvestre AJD, Reis B. Synthesis and characterization of poly(2,5-furan dicarboxylate)s based on a variety of diols. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24812] [Citation(s) in RCA: 270] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Reis B, Martins M, Barreto B, Milhazes N, Garrido EM, Silva P, Garrido J, Borges F. Structure-property-activity relationship of phenolic acids and derivatives. Protocatechuic acid alkyl esters. J Agric Food Chem 2010; 58:6986-93. [PMID: 20446740 DOI: 10.1021/jf100569j] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The esterification of hydrophilic phenolic antioxidants is an efficient approach to enhance their solubility in apolar media. Herein, structure-property studies on the antiradical activity of a series of protocatechuic acid alkyl esters have been accomplished. The increase of the lipophilicity was shown to significantly improve the antioxidant activity of protocatechuic esters. Their efficiency as radical scavengers was evaluated using distinctive analytical methods, namely, 2,2-diphenyl-1-picrylhydrazyl (DPPH) UV/visible method, electrochemistry, and differential scanning calorimetry. All the new alkyl protocatechuate antioxidants studied possessed better radical-scavenging capacity than the natural antioxidant protocatechuic acid. This work has shown that the alkyl ester side chain markedly influences the lipophilicity of this type of phenolic system without disturbing the core of the molecule responsible for antioxidant activity. The data on the antioxidant activity obtained using the different analytical methods correlated well with each other and have revealed the interesting antioxidant potential of alkyl esters of protocatechuic acid.
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Affiliation(s)
- Bruno Reis
- CIETI/Departamento de Engenharia Química, Instituto Superior de Engenharia do Porto, IPP, Porto, Portugal
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Gandini A, Coelho D, Gomes M, Reis B, Silvestre A. Materials from renewable resources based on furan monomers and furan chemistry: work in progress. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b909377j] [Citation(s) in RCA: 202] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mandl KD, Reis B, Cassa C. Measuring outbreak-detection performance by using controlled feature set simulations. MMWR Suppl 2004; 53:130-6. [PMID: 15714642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023] Open
Abstract
INTRODUCTION The outbreak-detection performance of a syndromic surveillance system can be measured in terms of its ability to detect signal (i.e., disease outbreak) against background noise (i.e., normally varying baseline disease in the region). Such benchmarking requires training and the use of validation data sets. Because only a limited number of persons have been infected with agents of biologic terrorism, data are generally unavailable, and simulation is necessary. An approach for evaluation of outbreak-detection algorithms was developed that uses semisynthetic data sets to provide real background (which effectively becomes the noise in the signal-to-noise problem) with artificially injected signal. The injected signal is defined by a controlled feature set of variable parameters, including size, shape, and duration. OBJECTIVES This report defines a flexible approach to evaluating public health surveillance systems for early detection of outbreaks and provides examples of its use. METHODS The stages of outbreak detection are described, followed by the procedure for creating data sets for benchmarking performance. Approaches to setting parameters for simulated outbreaks by using controlled feature sets are detailed, and metrics for detection performance are proposed. Finally, a series of experiments using semisynthetic data sets with artificially introduced outbreaks defined with controlled feature sets is reviewed. RESULTS These experiments indicate the flexibility of controlled feature set simulation for evaluating outbreak-detection sensitivity and specificity, optimizing attributes of detection algorithms (e.g., temporal windows), choosing approaches to syndrome groupings, and determining best strategies for integrating data from multiple sources. CONCLUSIONS The use of semisynthetic data sets containing authentic baseline and simulated outbreaks defined by a controlled feature set provides a valuable means for benchmarking the detection performance of syndromic surveillance systems.
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Affiliation(s)
- Kenneth D Mandl
- Division of Emergency Medicine, Children's Hospital Boston, 300 Longwood Avenue, Boston, MA 02115, USA.
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Hänsch GM, Radsak M, Wagner C, Reis B, Koch A, Breitbart A, Andrassy K. Expression of major histocompatibility class II antigens on polymorphonuclear neutrophils in patients with Wegener's granulomatosis. Kidney Int 1999; 55:1811-8. [PMID: 10231443 DOI: 10.1046/j.1523-1755.1999.00446.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Wegener's granulomatosis is a systemic inflammatory disease of unknown etiology. Many studies suggest that autoimmune reactions are involved, and there is good evidence for the participation of immunocompetent cells. In that context, we examined the activation of polymorphonuclear neutrophils (PMNs) of patients with Wegener's granulomatosis. METHODS In a prospective study, the expression on the surface of PMNs of CD64 and of the major histocompatibility class II (MHC II) antigen was measured by cytofluorometry in whole blood. The expression of those antigens was correlated to disease activity. RESULTS Up to 15% of the peripheral PMNs of patients with active disease expressed MHC II. Follow-up studies showed that expression correlated closely with disease activity and that it decreased rapidly under immunosuppressive therapy. Expression of CD64 was seen in approximately 50% of the patients, regardless of disease activity. CONCLUSION MHC II expression on PMNs might serve as a novel diagnostic marker for active disease and appears to be suitable for monitoring immunotherapy. Moreover, our data provide evidence that PMNs, which are normally MHC II negative, acquire MHC II antigens in the course of disease and may be an unrecognized function within the afferent limb of the immune response.
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Affiliation(s)
- G M Hänsch
- Abteilung Medizinische Biometrie, Universität Heidelberg, Germany.
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26
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Reis B. [Doubts about modern treatment methods but: moist wound treatment is cheaper]. Pflege Z 1999; 52:365-6. [PMID: 10514739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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27
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Bürger A, Wagner C, Viedt C, Reis B, Hug F, Hänsch GM. Fibronectin synthesis by human tubular epithelial cells in culture: effects of PDGF and TGF-beta on synthesis and splicing. Kidney Int 1998; 54:407-15. [PMID: 9690207 DOI: 10.1046/j.1523-1755.1998.00009.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Enhanced synthesis of extracellular matrix proteins including fibronectin (FN) is associated with the development of sclerosis. In this context we studied FN synthesis by tubular epithelial cells in response to transforming growth factor-beta (TGF-beta) and platelet-derived growth factor (PDGF). METHODS FN protein synthesis by human tubular epithelial cells in culture (TEC) was measured by biosynthetic labeling and ELISA. Splicing of FN was assessed by RT-PCR and by Northern blotting. RESULTS Cultivated TEC synthesized and released FN, the majority of which was deposited as an unsoluble protein and a minor portion (10 to 15%) was released into the supernatant. TGF-beta and, to a lesser degree, PDGF, up-regulated FN synthesis. All three FN splice variants (EDA, EDB, and IIICS) were produced. PDGF did not influence the splicing. TGF-beta preferentially up-regulated the EDA splice variant, but had no effect on the splicing of the other domains. CONCLUSIONS PDGF and TGF-beta both up-regulate FN synthesis of TEC. TGF-beta, but not PDGF, also changed the quality of the de novo synthesized FN, and thus has a different role in the development of sclerosis.
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Affiliation(s)
- A Bürger
- Institut für Immunologie, Medzinische Klinik, Universität Heidelberg, Germany
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28
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Vey M, Schäfer W, Reis B, Ohuchi R, Britt W, Garten W, Klenk HD, Radsak K. Proteolytic processing of human cytomegalovirus glycoprotein B (gpUL55) is mediated by the human endoprotease furin. Virology 1995; 206:746-9. [PMID: 7726996 DOI: 10.1016/s0042-6822(95)80002-6] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Inhibition of endoproteolytic cleavage of glycoprotein B (gB; gpUL55) of human cytomegalovirus was achieved by treatment of infected fibroblasts with decanoyl peptidyl chloromethyl ketone (decRVKR-CMK), which inhibits the action of cellular subtilisin-like endoproteases with the amino acid recognition motif R x K/R R. Uncleaved gB precursor molecules of 160 kDa that were accumulated were endoglycosidase H resistant, suggesting that correct cellular transport occurred in the presence of the drug. The inhibitor also prevented endoproteolytic gB processing in CV-1 cells infected with a recombinant vaccinia virus-gB construct (VVgB). Evidence for direct involvement of the ubiquitous subtilisin-like endoprotease furin in gB cleavage was obtained from the observation that coinfection of CV-1 cells with WgB and a recombinant vaccinia-human furin construct reestablished endoproteolytic activity which was normally absent late after infection with WgB alone.
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Affiliation(s)
- M Vey
- Institut für Virologie, Philipps-Universität, Marburg, Germany
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29
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Reschke M, Reis B, Nöding K, Rohsiepe D, Richter A, Mockenhaupt T, Garten W, Radsak K. Constitutive expression of human cytomegalovirus glycoprotein B (gpUL55) with mutagenized carboxy-terminal hydrophobic domains. J Gen Virol 1995; 76 ( Pt 1):113-22. [PMID: 7844520 DOI: 10.1099/0022-1317-76-1-113] [Citation(s) in RCA: 20] [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] [Indexed: 01/27/2023] Open
Abstract
Stable transfectants were selected from human astrocytoma cells (U373) after transfection with recombinant expression vectors carrying the human cytomegalovirus (HCMV) glycoprotein B (gB; gpUL55) gene with alternative deletions of hydrophobic domain segment 1 (hd1) or segment 2 (hd2) of the carboxy-terminal potential bipartite membrane anchor domain. Comparative analysis of HCMV gB forms from cell lines gB(Mhd1) and gB(Mhd2), expressing mutagenized gB, and those from cells expressing authentic gB showed that deletion of hd1, but not that of hd2, interfered with efficient proteolytic cleavage of the gB precursor. Both mutagenized gB forms exhibited correct transport to the cell surface. Deletion of hd2, but not that of hd1, caused loss of membrane anchoring of the gB molecule, resulting in secretion of the respective gB form into the culture medium. The carboxy-terminal cleavage product of the soluble gB molecule, which migrated more slowly than its authentic counterpart, was modified by complex carbohydrate side chains and formed disulphide-linked complexes. Our observations indicate that hd2 is essential as well as sufficient for membrane anchoring of the HCMV gB molecule. For hd1, a potential fusogenic role is suggested by the conserved positional pattern of glycine residues, which is comparable to that of known fusion peptides of other viruses.
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Affiliation(s)
- M Reschke
- Institut für Virologie, Philipps-Universität, Marburg, Germany
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30
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Affiliation(s)
- B Reis
- Johns Hopkins Hospital, Division of Neonatology, Baltimore, MD 21287-3200
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31
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Mockenhaupt T, Reschke M, Bogner E, Reis B, Radsak K. Structural analysis of the US-segment of a viable temperature sensitive human cytomegalovirus mutant. Arch Virol 1994; 137:161-9. [PMID: 7979990 DOI: 10.1007/bf01311183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Structural analysis of the US-segment of a viable temperature sensitive human cytomegalovirus mutant (ts9) by the use of restriction enzymes, specific amplifications by the polymerase chain reaction and DNA sequencing, revealed deletions of open reading frames (orf) US14 and part of US15 in addition to that concerning US1 through US13 as reported previously [9]. It was further verified that the Hind III H-fragment and a major portion of the Hind III W-fragment were duplicated in inverted orientation. By the use of a monospecific antibody prepared against a procaryotic recombinant US11-specific product it was shown that the ts9 mutant was in fact deficient in a 30 kDa polypeptide, the gene product of orf US11.
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Affiliation(s)
- T Mockenhaupt
- Institut für Virologie der Philipps-Universität, Marburg, Federal Republic of Germany
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32
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Abstract
Experiments were undertaken to identify the product of open reading frame (orf) UL56 of human cytomegalovirus (HCMV), the putative homolog of infected cell protein (ICP) 18.5 of herpes simplex virus type 1 (HSV-1) that is thought to be involved in viral nucleocapsid maturation. Northern blotting using a unique fragment of orf UL56 revealed a specific transcript of about 3.0 kb in HCMV-infected fibroblasts early and late postinfection (p.i.). Two overlapping fragments of UL56 were subcloned for procaryotic expression and the recombinant proteins were used for affinity purification of an antibody fraction from human convalescent serum (pab UL56). The affinity purified antibody recognized a polypeptide with an apparent molecular weight of about 130 kDa (p 130) in immunoblots of virions and of infected cell extracts late p.i. Upon treatment of isolated virions with nonionic detergent the p 130 polypeptide separated with the nucleocapsid/tegument fraction. The amino acid sequence of p 130 deduced from the nucleotide sequence exhibited a high homology to ICP 18.5 of HSV-1.
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Affiliation(s)
- E Bogner
- Institut für Virologie der Philipps-Universität, Marburg, Germany
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33
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Reis B, Bogner E, Reschke M, Richter A, Mockenhaupt T, Radsak K. Stable constitutive expression of glycoprotein B (gpUL55) of human cytomegalovirus in permissive astrocytoma cells. J Gen Virol 1993; 74 ( Pt 7):1371-9. [PMID: 8393078 DOI: 10.1099/0022-1317-74-7-1371] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Permanent cell lines showing homogeneous constitutive expression of glycoprotein B (gpUL55; gB) of human cytomegalovirus (HCMV) were selected, in the presence of geneticin, from human astrocytoma cells (U373) after transfection with recombinant pRC/CMV-gB carrying the complete coding sequence for HCMV gB and for aminoglycoside phosphotransferase. The biosynthesis and processing including specific proteolytic cleavage, formation of disulphide-linked oligomers as well as transport of recombinant gB in three of four established transformed cell lines essentially resembled that found in infected parental U373 except for eventual degradation after 2 h of gB synthesis. Analysis of the fourth transformant expressing uncleaved gB suggested that proteolytic cleavage is not required for normal intracellular transport. The stable transformants retained permissiveness for productive superinfection with HCMV. The application of cell lines transformed with mutagenized HCMV gB for the rescue of genetically engineered HCMV mutants is discussed.
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Affiliation(s)
- B Reis
- Institut für Virologie, Philipps-Universität, Marburg, Germany
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Tooze J, Hollinshead M, Reis B, Radsak K, Kern H. Progeny vaccinia and human cytomegalovirus particles utilize early endosomal cisternae for their envelopes. Eur J Cell Biol 1993; 60:163-78. [PMID: 8385018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
We have investigated by electron microscopy the envelopment of progeny human cytomegalovirus particles and vaccinia virus particles. As host cells we used primary human foreskin fibroblasts, in which both viruses replicate, and also AtT20 cells in which vaccinia virus, but not human cytomegalovirus, replicates. As we show here, primary human foreskin fibroblasts contain tubular early endosomes like those in AtT20 cells and many other cells in culture. Our aim was to ascertain whether or not the cisternae which wrap the maturing progeny viral particles are related to tubular endosomes. When infected cells were incubated with the fluid phase endocytic tracer horseradish peroxidase (HRP) at appropriate times after infection (5-8 h post vaccinia infection and 72 h or 96 h post cytomegalovirus infection), we found that many of the partially or fully enveloped vaccinia and human cytomegalovirus particles in the cytoplasm had HRP reaction product in the lumen of their cisternal envelope. Examination of single and serial sections indicated that the cisternal envelopes of the progeny virions were derived from tubular endosomes. Pulse-chase experiments with HRP showed that the viral particles with envelopes derived from tubular endosomes were not directed to late endosomes and autophagic digestion but were released from the cells. Experiments with Brefeldin A established that the envelopment of viral particles by endosomal cisternae proceeded for at least 2 h in the absence of a Golgi apparatus. Our data indicate that vaccinia virus and human cytomegalovirus (and presumably other pox and herpes viruses) have evolved to utilize early endocytic compartments to achieve their egress from host cells. We also found that in cells infected by vaccinia virus the delivery of the endocytic tracer to the Golgi apparatus is greatly enhanced over that in controls or cells infected with human cytomegalovirus. The cytopathic effects of vaccinia virus therefore include perturbation of membrane traffic between endocytic and exocytic compartments.
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Affiliation(s)
- J Tooze
- European Molecular Biology Laboratory, Heidelberg, Germany
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Duarte P, Luz Z, Lourenço I, Reis B, Alvelos A. [Gastrinoma localized in the pylorus in a patient with recurrent peptic ulcer]. ACTA MEDICA PORT 1992; 5:393-6. [PMID: 1442186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report a clinical case of a woman, 56 years old, with a history of duodenal ulcer and esophagitis, under medication with H2 receptors blockers during 3 years. Plasma basal gastrin was near normal levels. A stimulation test with secretin was compatible with gastrinoma. CT scan and selective angiography didn't localize the tumor. At laparotomy we found a pyloric nodule that prove to be the gastrinoma. Eighteen months after surgery the patient is asymptomatic and with a normal endoscopic examination and secretin stimulation test.
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Affiliation(s)
- P Duarte
- Serviços de Gastrenterologia e Cirurgia 5, Hospital de S. António dos Capuchos, Lisboa
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Bogner E, Reschke M, Reis B, Reis E, Britt W, Radsak K. Recognition of compartmentalized intracellular analogs of glycoprotein H of human cytomegalovirus. Arch Virol 1992; 126:67-80. [PMID: 1326269 DOI: 10.1007/bf01309685] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Infected cell proteins immunoprecipitated from human cytomegalovirus (HCMV)-infected fibroblasts with glycoprotein H (gH)-specific conformation-dependent monoclonal antibody (mab 14-4 b) were found to consist of three components of 86 kDa, 89 kDa, and 125 kDa (gp 86, 89, and 125). Affinity purified antibodies from human convalescent serum reactive with an NH2-terminal epitope of gH recognized three polypeptides of comparable size in immunoblots, suggesting antigenic relatedness of these three components of the gH-complex. Using subcellular fractions for immunoblotting, gp 86 was identified as an endoglycosidase H (endo H)-sensitive gH-form present in the nuclear fraction whereas gp 89 and gp 125 were endo H-resistant and present in the membrane fraction or in virions. Incomplete endo H-digestion suggested that four of six predicted N-glycosylation sites of the gH molecule were occupied by carbohydrate side chains. Analysis under nonreducing conditions revealed that the compartmentalized as well as virion-associated gH analogs form high molecular weight complexes. The relation of the recognized gH analogs to the processing pathway of gH is discussed.
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Affiliation(s)
- E Bogner
- Institut für Virologie, Philipps-Universität, Marburg, Federal Republic of Germany
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37
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Trancoso VN, Ramos JS, Barreiras J, Reis B. Chronic pancreatitis after therapy with synthetic ACTH. Am J Gastroenterol 1984; 79:769-72. [PMID: 6091442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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38
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Bunte T, Donner P, Pfaff E, Reis B, Greiser-Wilke I, Schaller H, Moelling K. Inhibition of DNA binding of purified p55v-myc in vitro by antibodies against bacterially expressed myc protein and a synthetic peptide. EMBO J 1984; 3:1919-24. [PMID: 6383822 PMCID: PMC557618 DOI: 10.1002/j.1460-2075.1984.tb02068.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
To identify viral myc proteins, we have prepared myc-specific antibodies: (i) against a synthetic peptide corresponding to the nine carboxy-terminal amino acids of the viral myc (C9); (ii) against a bacterially expressed viral myc protein obtained by inserting the SalI-BamHI fragment of the viral MC29 DNA clone in the expression vector pPLc24. Both antisera recognize a protein of 55 000 mol. wt., p55v-myc, in MH2- and OK10-transformed fibroblasts. The protein is located in the nucleus, as shown by indirect immunofluorescence and cell fractionation. Antibodies against the C9 peptide were used to purify the p55v-myc by immunoaffinity column purification (3000-fold) from OK10- and MH2-transformed fibroblasts. p55v-myc binds to double-stranded DNA in vitro as does p110gag-myc. DNA binding in vitro is inhibited by the immunoglobulin fraction of antibodies against the bacterially expressed myc protein. Furthermore, a synthetic peptide consisting of 16 amino acids (C16) was used to isolate specific immunoglobulins which also inhibit DNA binding in vitro. OK10 codes, in addition to p55v-myc, for a p200gag-pol-myc polyprotein. The majority of this protein is located in the cytoplasm (79%). The purified protein binds to single-stranded RNA in vitro, unlike other gag-myc or myc proteins.
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