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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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Bandarra MCF, Escoval A, Lopes A, Abreu C, Simões J, Brito M, Dinis R, Alves S, Póvoa S, Oliveira SD, Simão D, Nogueira-Costa G, Coelho J, Montenegro M, Ramos M, Meireles P, Magno S, Pedro S, da Costa LM. P137 PERSONA study: Optimization of the value-based healthcare as for the follow-up of women with breast cancer- A portrait of breast cancer survivor’s follow-up in Portugal. Breast 2023. [DOI: 10.1016/s0960-9776(23)00254-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
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Cachim A, Pereira AM, Almeida R, Amaral R, Alves‐Correia M, Vieira‐Marques P, Chaves‐Loureiro C, Ribeiro C, Cardia F, Gomes J, Vidal C, Silva E, Rocha S, Rocha D, Marques ML, Páscoa R, Morais D, Cruz AM, Santalha M, Simões JA, da Silva S, Silva D, Gerardo R, Todo Bom F, Morete A, Vieira I, Vieira P, Monteiro R, Raimundo MR, Monteiro L, Neves Â, Santos C, Penas AM, Regadas R, Marques JV, Rosendo I, Aguiar MA, Fernandes S, Cardoso CS, Pimenta F, Meireles P, Gonçalves M, Fonseca JA, Jácome C. Measuring adherence to inhaled control medication in patients with asthma: Comparison among an asthma app, patient self-report and physician assessment. Clin Transl Allergy 2023; 13:e12210. [PMID: 36825517 PMCID: PMC9930432 DOI: 10.1002/clt2.12210] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/27/2022] [Accepted: 09/30/2022] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Previous studies have demonstrated the feasibility of using an asthma app to support medication management and adherence but failed to compare with other measures currently used in clinical practice. However, in a clinical setting, any additional adherence measurement must be evaluated in the context of both the patient and physician perspectives so that it can also help improve the process of shared decision making. Thus, we aimed to compare different measures of adherence to asthma control inhalers in clinical practice, namely through an app, patient self-report and physician assessment. METHODS This study is a secondary analysis of three prospective multicentre observational studies with patients (≥13 years old) with persistent asthma recruited from 61 primary and secondary care centres in Portugal. Patients were invited to use the InspirerMundi app and register their inhaled medication. Adherence was measured by the app as the number of doses taken divided by the number of doses scheduled each day and two time points were considered for analysis: 1-week and 1-month. At baseline, patients and physicians independently assessed adherence to asthma control inhalers during the previous week using a Visual Analogue Scale (VAS 0-100). RESULTS A total of 193 patients (72% female; median [P25-P75] age 28 [19-41] years old) were included in the analysis. Adherence measured by the app was lower (1 week: 31 [0-71]%; 1 month: 18 [0-48]%) than patient self-report (80 [60-95]) and physician assessment (82 [51-94]) (p < 0.001). A negligible non-significant correlation was found between the app and subjective measurements (ρ 0.118-0.156, p > 0.05). There was a moderate correlation between patient self-report and physician assessment (ρ = 0.596, p < 0.001). CONCLUSIONS Adherence measured by the app was lower than that reported by the patient or the physician. This was expected as objective measurements are commonly lower than subjective evaluations, which tend to overestimate adherence. Nevertheless, the low adherence measured by the app may also be influenced by the use of the app itself and this needs to be considered in future studies.
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Affiliation(s)
| | - Ana Margarida Pereira
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of MedicineUniversity of PortoPortoPortugal,Allergy UnitInstituto and Hospital CUF‐PortoPortoPortugal
| | - Rute Almeida
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of MedicineUniversity of PortoPortoPortugal
| | - Rita Amaral
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Cardiovascular and Respiratory SciencesPorto Health SchoolPolytechnic Institute of PortoPortoPortugal,Department of Women's and Children's HealthPediatric ResearchUppsala UniversityUppsalaSweden
| | - Magna Alves‐Correia
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Allergy UnitInstituto and Hospital CUF‐PortoPortoPortugal
| | - Pedro Vieira‐Marques
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal
| | - Claudia Chaves‐Loureiro
- Pulmonology DepartmentHospitais da Universidade de CoimbraCentro Hospitalar e Universitário de CoimbraCoimbraPortugal,Clinical Academic Center of CoimbraCoimbraPortugal
| | - Carmelita Ribeiro
- Serviço ImunoalergologiaCentro Hospitalar e Universitário de CoimbraCoimbraPortugal
| | - Francisca Cardia
- Unidade de Saúde Familiar (USF) Terras de AzuraraAgrupamento de Centros de Saúde Dão LafõesMangualdePortugal
| | - Joana Gomes
- Serviço de Imunoalergologia, Unidade ICentro Hospitalar Vila Nova de Gaia/EspinhoVila Nova de GaiaPortugal
| | - Carmen Vidal
- Servicio de AlergiaComplejo Hospitalario Universitario de SantiagoSantiago de CompostelaSpain
| | - Eurico Silva
- USF João SemanaAgrupamento de Centros de Saúde (ACES) Baixo VougaOvarPortugal
| | - Sara Rocha
- USF Arte NovaACES Baixo VougaOliveirinhaPortugal
| | - Diana Rocha
- USF Sá de MirandaACES Cávado II ‐ Gerês/CabreiraVila VerdePortugal
| | - Maria Luís Marques
- Serviço de ImunoalergologiaHospital da Senhora da OliveiraGuimarãesPortugal
| | - Rosália Páscoa
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of MedicineUniversity of PortoPortoPortugal,USF Abel SalazarACES GaiaVila Nova de GaiaPortugal
| | - Daniela Morais
- USF CorgoACES Douro I ‐ Marão e Douro NorteVila RealPortugal
| | | | - Marta Santalha
- Serviço de PediatriaHospital da Senhora da OliveiraGuimarãesPortugal
| | - José Augusto Simões
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,USF Caminhos do CértomaACES Baixo MondegoPampilhosaPortugal,Department of Medical SciencesUniversity of Beira InteriorCovilhãPortugal
| | - Sofia da Silva
- USF CuidarteUnidade Local de Saúde do Alto MinhoPortuzeloPortugal
| | - Diana Silva
- Faculty of MedicineUniversity of PortoPortoPortugal,Serviço de ImunoalergologiaCentro Hospitalar Universitário de São JoãoPortoPortugal
| | - Rita Gerardo
- Serviço de PneumologiaHospital Santa MartaCentro Hospitalar Universitário de Lisboa CentralLisboaPortugal
| | | | - Ana Morete
- Allergy UnitInstituto and Hospital CUF‐PortoPortoPortugal,Serviço de ImunoalergologiaHospital Infante D PedroCentro Hospitalar Baixo VougaAveiroPortugal
| | - Inês Vieira
- Unidade de Cuidados Saúde Personalizados Arnaldo SampaioACES Pinhal LitoralLeiriaPortugal
| | | | - Rosário Monteiro
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of MedicineUniversity of PortoPortoPortugal,USF Homem do LemeACES Porto OcidentalPortoPortugal
| | | | - Luís Monteiro
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,USF Esgueira+ACES Baixo VougaEsgueiraPortugal
| | | | - Carlos Santos
- USF Santo AntónioACES Cávado III ‐ Barcelos/EsposendeBarcelosPortugal
| | | | - Rita Regadas
- USF Aquilino RibeiroACES Douro II ‐ Douro SulMoimenta da BeiraPortugal
| | | | - Inês Rosendo
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,USF Coimbra CentroACES Baixo MondegoCoimbraPortugal
| | | | - Sara Fernandes
- UCSP São João da PesqueiraACES Douro SulSão João da PesqueiraPortugal
| | - Carlos Seiça Cardoso
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,USF CondeixaACES Baixo MondegoCondeixa‐a‐NovaPortugal
| | | | | | | | - João Almeida Fonseca
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of MedicineUniversity of PortoPortoPortugal,Allergy UnitInstituto and Hospital CUF‐PortoPortoPortugal,MEDIDA – Medicina, Educação, Investigação, Desenvolvimento e AvaliaçãoPortoPortugal
| | - Cristina Jácome
- Center for Health Technology and Services Research (CINTESIS)Faculty of MedicineUniversity of PortoPortoPortugal,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS)Faculty of MedicineUniversity of PortoPortoPortugal
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Meireles P, Brás D, Fontinha D, Chora ÂF, Serre K, Mendes AM, Prudêncio M. Elimination of Hepatic Rodent Plasmodium Parasites by Amino Acid Supplementation. iScience 2020; 23:101781. [PMID: 33294789 PMCID: PMC7689548 DOI: 10.1016/j.isci.2020.101781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/16/2020] [Accepted: 11/04/2020] [Indexed: 12/12/2022] Open
Abstract
Plasmodium parasites, causative agents of malaria, scavenge host nutrients to sustain their intracellular replication. Modulation of the host's nutritional status can potentially help control infection by limiting the parasite's access to nutrients, or by boosting the immune system. Here, we show that dietary supplementation of mice employing a combination of arginine (R) with two additional amino acids, lysine (K) and valine (V), termed RKV, significantly decreases Plasmodium liver infection. RKV supplementation results in the elimination of parasites at a late stage of their development in the liver. Our data employing genetic knockout mouse models and in vivo depletion of specific cell populations suggest that RKV supplementation boosts the host's overall innate immune response, and that parasite elimination is dependent on MyD88 signaling in immune cells. The immunostimulatory effect of RKV supplementation opens a potential role for dietary supplementation as an adjuvant for prophylaxis or immunization strategies against Plasmodium infection.
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Affiliation(s)
- Patrícia Meireles
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
| | - Daniela Brás
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
| | - Diana Fontinha
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
| | - Ângelo F Chora
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
| | - Karine Serre
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
| | - António M Mendes
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
| | - Miguel Prudêncio
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
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Fernandes F, Meireles P, Rocha M, Duque M, Barros H. Learnings from a decade experience of a community-based HIV and STI testing and counseling center in Lisbon – Portugal. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.736] [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: 11/12/2022] Open
Abstract
Abstract
Background
In the context of an increased number of men who have sex with men (MSM) being diagnosed with HIV infection in many European countries, it became a matter of maximum priority to consider new strategies to monitor and tackle the epidemic. In this scenario, CheckpointLX and a cohort study were projected as a sexual health and research center oriented towards MSM in Portugal.
Methods
In 2011 CheckpointLX was launched in Lisbon as a community-based center for anonymous and free rapid HIV and other sexually transmitted diseases (STI) testing with a strong component of counseling for sexual health, specially targeted at MSM. In the case of a reactive test, a medical appointment is proposed and scheduled. The Lisbon Cohort of MSM is an ongoing observational prospective study conducted at CheckpointLX. Collected data include sexual behaviors, preventive strategies, and history of STI.
Results
Until July 2019, 7,351 HIV-negative MSM chose to participate in the Lisbon Cohort of MSM. 3,523 had at least one follow-up visit. The median age was 29 (IQR 25 - 37), and 27% were born in a foreign country, including 15% born in Africa and South America. HIV incidence increased up until 2015, reaching 5 reactive tests per 100 tested annually. There has been a sustained decrease in HIV observed since 2015. The use of HIV prevention tools was provided: 31% used condoms consistently, 3% reported PrEP, and 4% PEP.
Conclusions
A decade since the beginning of this experience shows positive results, such as increased access and testing. We promoted a stigma-free service that facilitated MSM's and other key population's access to sexual health care. We contribute unique data for assisting in the monitoring of the Dublin Declaration in Portugal.
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Affiliation(s)
- F Fernandes
- EPIUnit – Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - P Meireles
- Unidade de Saúde Pública, ACES Baixo Mondego, Figueira de Foz, Portugal
| | - M Rocha
- GAT, Grupo de Ativistas em Tratamentos, Lisbon, Portugal
| | - M Duque
- Coalition PLUS, Community-Based Research Laboratory, Patin, France
| | - H Barros
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal
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Costa JP, Meireles P, Aguiar A, Schmidt AJ, Barros H. HIV test and knowledge of U=U: insights from MSM living in Portugal and participating in EMIS 2017. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Recently, it became clear that undetectable equals untransmittable (U=U), stressing the importance of engaging in medical care and adhering to antiretroviral therapy. HIV testing and counselling (HTC) are offered in different settings and can be an opportunity to inform people. We aimed to understand if HIV testing history, including recency, place and, result, was associated with U=U knowledge.
We used data from 2242 MSM living in Portugal participating in EMIS 2017 that answered if they already knew that “A person with HIV who is on effective treatment (called 'undetectable viral load') cannot pass their virus to someone else during sex”, opting of 5 possible answers, dichotomized in “I already knew” vs. any other option. Regarding HIV testing history, participants were categorized as follows:1. HIV positive; 2. HIV negative and last test ≤12 months in a community setting; 3. HIV negative and last test ≤12 months in a medical setting, and 4. never tested for HIV or last test >12 months or tested in other settings (reference). Logistic regression models were fitted to estimate crude and city size and education-adjusted associations.
The median (P25; P75) age of participants was 34 (25; 43) years. No significant statistical association was found with age or current occupation. Those with more years of education and living in a big or very big city were more likely to know that U=U (aOR:1.55; 95%CI:1.20-1.99 and aOR:1.26; 95%CI:1.04-1.53, respectively). Considering HIV testing history and diagnosis, men with diagnosed HIV (aOR:6.33; 95%CI:4.50-8.90), those who had the last test in community setting (aOR:2.44; 95%CI:1.87-3.17) and those who had the last test in a medical setting (aOR: 1.57; 95%CI:1.26-1.95) were more aware of U=U than those not tested in the last 12 months.
Our results suggest that there is a gradient of U=U knowledge associated with HIV testing history among MSM. Efforts should focus on improving counselling about U=U at all HIV testing settings.
Key messages
The knowledge of U=U seems to be associated with the place, recency and result of the last HIV test. Counselling should focus on the best evidence available at all HIV testing settings, to inform and empower the individuals.
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Affiliation(s)
- J P Costa
- EPIUnit, Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
| | - P Meireles
- EPIUnit, Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
| | - A Aguiar
- EPIUnit, Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
| | | | - H Barros
- EPIUnit, Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
- Department Ciências da Saúde Pública e Forenses, e Educação Médica, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
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7
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Meireles P, Moreira C, Rocha M, Brito J, Mendão L, Barros H. Risk of HIV infection in a cohort of men who have sex with men attending CheckpointLX in Lisbon, Portugal. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.05.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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8
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Meireles P, Barros H, Aguiar A, Simões D, Freitas R, Mendão L. The Community Screening Network project - Surveillance of HIV, viral hepatitis and sexually transmitted infections in the community in Portugal. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.05.437] [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: 11/28/2022] Open
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9
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Ruivo MTG, Vera IM, Sales-Dias J, Meireles P, Gural N, Bhatia SN, Mota MM, Mancio-Silva L. Host AMPK Is a Modulator of Plasmodium Liver Infection. Cell Rep 2016; 16:2539-2545. [PMID: 27568570 PMCID: PMC5014760 DOI: 10.1016/j.celrep.2016.08.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 04/20/2016] [Accepted: 07/28/2016] [Indexed: 12/30/2022] Open
Abstract
Manipulation of the master regulator of energy homeostasis AMP-activated protein kinase (AMPK) activity is a strategy used by many intracellular pathogens for successful replication. Infection by most pathogens leads to an activation of host AMPK activity due to the energetic demands placed on the infected cell. Here, we demonstrate that the opposite is observed in cells infected with rodent malaria parasites. Indeed, AMPK activity upon the infection of hepatic cells is suppressed and dispensable for successful infection. By contrast, an overactive AMPK is deleterious to intracellular growth and replication of different Plasmodium spp., including the human malaria parasite, P. falciparum. The negative impact of host AMPK activity on infection was further confirmed in mice under conditions that activate its function. Overall, this work establishes the role of host AMPK signaling as a suppressive pathway of Plasmodium hepatic infection and as a potential target for host-based antimalarial interventions. Plasmodium-infected hepatic cells exhibit decreased AMPK activity AMPK suppression favors hepatic infection; its activation reduces parasite development AMPK activating compounds efficiently reduce liver infection in vitro and in vivo
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Affiliation(s)
- Margarida T Grilo Ruivo
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Iset Medina Vera
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Joana Sales-Dias
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Patrícia Meireles
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Nil Gural
- Department of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Sangeeta N Bhatia
- Department of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Maria M Mota
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal.
| | - Liliana Mancio-Silva
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal.
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10
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Meireles P, Sales-Dias J, Andrade CM, Mello-Vieira J, Mancio-Silva L, Simas JP, Staines HM, Prudêncio M. GLUT1-mediated glucose uptake plays a crucial role during Plasmodium hepatic infection. Cell Microbiol 2016; 19. [PMID: 27404888 PMCID: PMC5297879 DOI: 10.1111/cmi.12646] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 06/20/2016] [Accepted: 07/06/2016] [Indexed: 02/06/2023]
Abstract
Intracellular pathogens have evolved mechanisms to ensure their survival and development inside their host cells. Here, we show that glucose is a pivotal modulator of hepatic infection by the rodent malaria parasite Plasmodium berghei and that glucose uptake via the GLUT1 transporter is specifically enhanced in P. berghei‐infected cells. We further show that ATP levels of cells containing developing parasites are decreased, which is known to enhance membrane GLUT1 activity. In addition, GLUT1 molecules are translocated to the membrane of the hepatic cell, increasing glucose uptake at later stages of infection. Chemical inhibition of GLUT1 activity leads to a decrease in glucose uptake and the consequent impairment of hepatic infection, both in vitro and in vivo. Our results reveal that changes in GLUT1 conformation and cellular localization seem to be part of an adaptive host response to maintain adequate cellular nutrition and energy levels, ensuring host cell survival and supporting P. berghei hepatic development.
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Affiliation(s)
- Patrícia Meireles
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Joana Sales-Dias
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Carolina M Andrade
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - João Mello-Vieira
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Liliana Mancio-Silva
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - J Pedro Simas
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Henry M Staines
- Institute for Infection & Immunity, St. George's, University of London, Cranmer Terrace, London, UK
| | - Miguel Prudêncio
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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11
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Lucas R, Meireles P, Fuertes R, Brito J, Campos MJ, Mendão L, Barros H. HIV Incidence among MSM: Defying Primary Prevention. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.533] [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: 11/15/2022] Open
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12
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Meireles P, Lucas R, Carvalho C, Fuertes R, Brito J, Campos MJ, Mendão L, Barros H. Incident risk factors as predictors of HIV seroconversion in the Lisbon cohort of men who have sex with men: first results, 2011-2014. ACTA ACUST UNITED AC 2015; 20. [PMID: 25884151 DOI: 10.2807/1560-7917.es2015.20.14.21091] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
HIV incidence in men who have sex with men (MSM) is increasing in western countries, including Portugal. We aimed to estimate HIV incidence and to assess how individual short-term changes in exposures over time predict seroconversion. We evaluated participants of an open cohort of HIV-negative MSM enrolled after testing at a community-based voluntary HIV counselling and testing centre in Lisbon. At each evaluation a structured questionnaire was completed and HIV status was ascertained using rapid followed by confirmatory testing. Between April 2011 and February 2014, 804 MSM were followed for a total of 893 person-years. Predictors of HIV seroconversion were identified using Poisson generalised linear regression. The overall seroincidence was 2.80/100 person-years (95% confidence interval: 1.89-4.14). Men who seroconverted had a higher mean number of tests per year. Seroconversions were significantly associated with partner disclosure of HIV status during follow-up, newly-adopted unprotected anal intercourse (UAI) with a steady partner and being newly-diagnosed with syphilis during follow-up. Likewise, sexual intercourse with HIV-positive men, having an HIV-positive steady partner at least once during follow-up and persistent UAI with occasional partners were predictors of seroconversion. High HIV incidence in this cohort is likely driven by short-term contextual and behavioural changes during follow-up.
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Affiliation(s)
- P Meireles
- EPIUnit, Institute of Public Health, University of Porto, Porto, Portugal
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13
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Oliveira R, Guedes RC, Meireles P, Albuquerque IS, Gonçalves LM, Pires E, Bronze MR, Gut J, Rosenthal PJ, Prudêncio M, Moreira R, O’Neill PM, Lopes F. Tetraoxane–Pyrimidine Nitrile Hybrids as Dual Stage Antimalarials. J Med Chem 2014; 57:4916-23. [DOI: 10.1021/jm5004528] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rudi Oliveira
- Instituto
de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Rita C. Guedes
- Instituto
de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Patrícia Meireles
- Instituto
de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal
| | - Inês S. Albuquerque
- Instituto
de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal
| | - Lídia M. Gonçalves
- Instituto
de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Elisabete Pires
- ITQB-UNL, Av. da República, Estação
Agronómica Nacional, 2780-157 Oeiras, Portugal
| | - Maria Rosário Bronze
- Instituto
de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- ITQB-UNL, Av. da República, Estação
Agronómica Nacional, 2780-157 Oeiras, Portugal
| | - Jiri Gut
- Department
of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, California 94143, United States
| | - Philip J. Rosenthal
- Department
of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, California 94143, United States
| | - Miguel Prudêncio
- Instituto
de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal
| | - Rui Moreira
- Instituto
de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Paul M. O’Neill
- Department
of Chemistry, University of Liverpool, Liverpool, L69 3BX, U.K
| | - Francisca Lopes
- Instituto
de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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14
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Miranda D, Capela R, Albuquerque IS, Meireles P, Paiva I, Nogueira F, Amewu R, Gut J, Rosenthal PJ, Oliveira R, Mota MM, Moreira R, Marti F, Prudêncio M, O’Neill PM, Lopes F. Novel endoperoxide-based transmission-blocking antimalarials with liver- and blood-schizontocidal activities. ACS Med Chem Lett 2014; 5:108-12. [PMID: 24900781 DOI: 10.1021/ml4002985] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [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: 07/30/2013] [Accepted: 12/20/2013] [Indexed: 11/29/2022] Open
Abstract
In a search for effective compounds against both the blood- and liver-stages of infection by malaria parasites with the ability to block the transmission of the disease to mosquito vectors, a series of hybrid compounds combining either a 1,2,4-trioxane or 1,2,4,5-tetraoxane and 8-aminoquinoline moieties were synthesized and screened for their antimalarial activity. These hybrid compounds showed high potency against both exoerythrocytic and erythrocytic forms of malaria parasites, comparable to representative trioxane-based counterparts. Furthermore, they efficiently blocked the development of the sporogonic cycle in the mosquito vector. The tetraoxane-based hybrid 5, containing an amide linker between the two moieties, effectively cleared a patent blood-stage P. berghei infection in mice after i.p. administration. Overall, these results indicate that peroxide-8-aminoquinoline hybrids are excellent starting points to develop an agent that conveys all the desired antimalarial multistage activities in a single chemical entity and, as such, with the potential to be used in malaria elimination campaigns.
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Affiliation(s)
- Daniela Miranda
- Research
Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty
of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-019 Lisbon, Portugal
| | - Rita Capela
- Research
Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty
of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-019 Lisbon, Portugal
| | - Inês S. Albuquerque
- Instituto
de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal
| | - Patrícia Meireles
- Instituto
de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal
| | - Isa Paiva
- Centro
de Malária e Outras Doenças Tropicais, IHMT, Universidade Nova de Lisboa, Rua da Junqueira No. 100, P-1349-008 Lisbon, Portugal
| | - Fátima Nogueira
- Centro
de Malária e Outras Doenças Tropicais, IHMT, Universidade Nova de Lisboa, Rua da Junqueira No. 100, P-1349-008 Lisbon, Portugal
| | - Richard Amewu
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K
| | - Jiri Gut
- Department
of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, California 94143, United States
| | - Philip J. Rosenthal
- Department
of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, California 94143, United States
| | - Rudi Oliveira
- Research
Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty
of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-019 Lisbon, Portugal
| | - Maria M. Mota
- Instituto
de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal
| | - Rui Moreira
- Research
Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty
of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-019 Lisbon, Portugal
| | - Francesc Marti
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K
| | - Miguel Prudêncio
- Instituto
de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal
| | - Paul M. O’Neill
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K
| | - Francisca Lopes
- Research
Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty
of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-019 Lisbon, Portugal
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15
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Lin JW, Meireles P, Prudêncio M, Engelmann S, Annoura T, Sajid M, Chevalley-Maurel S, Ramesar J, Nahar C, Avramut CMC, Koster AJ, Matuschewski K, Waters AP, Janse CJ, Mair GR, Khan SM. Loss-of-function analyses defines vital and redundant functions of the Plasmodium rhomboid protease family. Mol Microbiol 2013; 88:318-38. [PMID: 23490234 DOI: 10.1111/mmi.12187] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2013] [Indexed: 11/26/2022]
Abstract
Rhomboid-like proteases cleave membrane-anchored proteins within their transmembrane domains. In apicomplexan parasites substrates include molecules that function in parasite motility and host cell invasion. While two Plasmodium rhomboids, ROM1 and ROM4, have been examined, the roles of the remaining six rhomboids during the malaria parasite's life cycle are unknown. We present systematic gene deletion analyses of all eight Plasmodium rhomboid-like proteins as a means to discover stage-specific phenotypes and potential functions in the rodent malaria model, P. berghei. Four rhomboids (ROM4, 6, 7 and 8) are refractory to gene deletion, suggesting an essential role during asexual blood stage development. In contrast ROM1, 3, 9 and 10 were dispensable for blood stage development and exhibited no, subtle or severe defects in mosquito or liver development. Parasites lacking ROM9 and ROM10 showed no major phenotypic defects. Parasites lacking ROM1 presented a delay in blood stage patency following liver infection, but in contrast to a previous study blood stage parasites had similar growth and virulence characteristics as wild type parasites. Parasites lacking ROM3 in mosquitoes readily established oocysts but failed to produce sporozoites. ROM3 is the first apicomplexan rhomboid identified to play a vital role in sporogony.
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Affiliation(s)
- Jing-Wen Lin
- Leiden Malaria Research Group (Parasitology), Leiden University Medical Centre, Leiden, The Netherlands
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Figueira A, Monteiro A, Carvalho A, Reis T, Batel V, Alves L, Fontes P, Meireles P, Pinto G. EP-1206: Step-and-Shoot IMRT segmentation method - impact on QA and dose distribution. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33512-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Meireles P, Figueira A, Monteiro A, Osório L, Soares A, Pinheiro J, Fontes M, Varzim P, Pinto G. EP-1046: Comparison between different forms of assessment of in-air PTV in breast irradiation with forward IMRT. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33352-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Fonte D, Meireles P, Costa A, Alves L, Pinto G. 1075 poster TESTICULAR SEMINOMA: A 12 YEARS EPIDEMIOLOGICAL REVIEW OF THE EXPERIENCE OF A SINGLE INSTITUTION. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71197-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Fonte D, Meireles P, Costa A, Pinto G. 743 poster BREAST CANCER IN ELDERLY WOMEN-TOLERANCE TO RADIATION THERAPY. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)70865-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Winck J, Nêveda R, Póvoa M, Cadeco A, Meireles P. Ventiloterapia domiciliária em doentes com insuficiência respiratória crónica. Revista Portuguesa de Pneumologia 1997. [DOI: 10.1016/s0873-2159(15)31121-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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