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Cardoso JMS, Manadas B, Abrantes I, Robertson L, Arcos SC, Troya MT, Navas A, Fonseca L. Pine wilt disease: what do we know from proteomics? BMC Plant Biol 2024; 24:98. [PMID: 38331735 PMCID: PMC10854151 DOI: 10.1186/s12870-024-04771-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/26/2024] [Indexed: 02/10/2024]
Abstract
Pine wilt disease (PWD) is a devastating forest disease caused by the pinewood nematode (PWN), Bursaphelenchus xylophilus, a migratory endoparasite that infects several coniferous species. During the last 20 years, advances have been made for understanding the molecular bases of PWN-host trees interactions. Major advances emerged from transcriptomic and genomic studies, which revealed some unique features related to PWN pathogenicity and constituted fundamental data that allowed the development of postgenomic studies. Here we review the proteomic approaches that were applied to study PWD and integrated the current knowledge on the molecular basis of the PWN pathogenicity. Proteomics has been useful for understanding cellular activities and protein functions involved in PWN-host trees interactions, shedding light into the mechanisms associated with PWN pathogenicity and being promising tools to better clarify host trees PWN resistance/susceptibility.
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Affiliation(s)
- Joana M S Cardoso
- Centre for Functional Ecology, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Calçada Martins de Freitas, Coimbra, 3000-456, Portugal.
| | - Bruno Manadas
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Polo I, Coimbra, 3004-504, Portugal
- CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Rua Larga - Faculdade de Medicina, 1ºandar - POLO I, Coimbra, 3004-504, Portugal
| | - Isabel Abrantes
- Centre for Functional Ecology, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Calçada Martins de Freitas, Coimbra, 3000-456, Portugal
| | - Lee Robertson
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, CSIC. Instituto de Ciencias Forestales (ICIFOR), Ctra. de La Coruña Km 7.5, Madrid, 28040, Spain
| | - Susana C Arcos
- Museo Nacional de Ciencias Naturales, CSIC. Dpto Biodiversidad y Biología Evolutiva, C/ José Gutiérrez Abascal 2, Madrid, 28006, Spain
| | - Maria Teresa Troya
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, CSIC. Instituto de Ciencias Forestales (ICIFOR), Ctra. de La Coruña Km 7.5, Madrid, 28040, Spain
| | - Alfonso Navas
- Museo Nacional de Ciencias Naturales, CSIC. Dpto Biodiversidad y Biología Evolutiva, C/ José Gutiérrez Abascal 2, Madrid, 28006, Spain
| | - Luís Fonseca
- Centre for Functional Ecology, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Calçada Martins de Freitas, Coimbra, 3000-456, Portugal
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Fonseca L, Monteleone F, Gonçalves A, Rego G, Nunes R. Decision-Making Capacity of Elderly Patients with Mixed Depression-Anxiety Disorder. ACTA MEDICA PORT 2023. [PMID: 37042781 DOI: 10.20344/amp.19682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/21/2023] [Indexed: 04/13/2023]
Affiliation(s)
- Luís Fonseca
- Bioethics Department. Faculdade de Medicina. Universidade do Porto. Porto; Psychiatry Department. Hospital Senhora da Oliveira. Guimarães. Portugal
| | | | - Andreia Gonçalves
- Psychiatry Department. Hospital Senhora da Oliveira. Guimarães. Portugal
| | - Guilhermina Rego
- Bioethics Department. Faculdade de Medicina. Universidade do Porto. Porto. Portugal
| | - Rui Nunes
- Bioethics Department. Faculdade de Medicina. Universidade do Porto. Porto. Portugal
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Monteleone F, Gonçalves M, Fonseca L, Simões S, Gonçalves A, Machado E, Fonseca J. Clozapine-Induced Eosinophilia: a Case Report. Rev Colomb Psiquiatr (Engl Ed) 2023; 52:161-164. [PMID: 37500239 DOI: 10.1016/j.rcpeng.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 04/21/2021] [Indexed: 07/29/2023]
Abstract
INTRODUCTION Clozapine is an atypical antipsychotic drug eligible for treatment-resistant schizophrenia. It frequently represents the best and the only choice in resistant schizophrenia. However, its use is feared by many professionals due to its possible adverse effects, such as eosinophilia. CASE REPORT We report a case of a young white male suffering from treatment-resistant schizophrenia who rapidly developed eosinophilia after starting clozapine. DISCUSSION We present a case of a 26-year-old white man diagnosed with schizophrenia with poor clinical response to several antipsychotics owing to which clozapine was started. Psychotic symptoms improved dramatically but a progressively ascendant eosinophilia was reported during serial haematological analyses. The patient remained physically asymptomatic. An exhaustive assessment with ancillary diagnostic tests revealed no cause for eosinophilia. Thus, a diagnosis of clozapine-induced eosinophilia was made. The drug was discontinued and eosinophil count progressively returned to normal but psychotic symptoms worsened. CONCLUSIONS Clozapine treatment is frequently feared due to its possible side effects and complications, delaying its use in refractory schizophrenia. Also, to our knowledge, there are no specific guidelines on how to manage haematological side effects such as eosinophilia. This is problematic as, in some cases, it may lead to an unnecessary withdrawal of clozapine with a worsening of psychotic symptoms. We present a brief discussion of the recent literature on the subject.
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Affiliation(s)
- Francesco Monteleone
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal.
| | | | - Luís Fonseca
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - Sónia Simões
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - Andreia Gonçalves
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - Eduarda Machado
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - João Fonseca
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
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Monteiro SS, Santos TS, Fonseca L, Saraiva M, Pereira T, Vilaverde J, Pichel F, Pinto C, Almeida MC, Dores J. Maternofetal outcomes in early-onset gestational diabetes: does weight gain matter? J Endocrinol Invest 2022; 45:2257-2264. [PMID: 35821458 DOI: 10.1007/s40618-022-01855-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/28/2022] [Indexed: 10/17/2022]
Abstract
AIM Women with early-onset gestational diabetes mellitus (GDM) have overall lower gestational weight gain (GWG) compared to those with later-onset GDM, albeit with usually worse maternofetal outcomes. We intent to investigate the association between inadequate GWG and maternofetal outcomes in pregnant women with early-onset GDM. METHODS We performed a retrospective study of women with early-onset GDM based on the National Registry of GDM. Three study groups were defined according to the recommendations of the Institute of Medicine for GWG: excessive GWG (eGWG), adequate (aGWG) or insufficient (iGWG). RESULTS A total of 8040 pregnant women were included: 27% (n = 2170) eGWG, 31% (n = 2492) aGWG and 42% (n = 3378) iGWG. Preeclampsia (4.3 vs 3 vs 1.6%, p < 0.001), polyhydramnios (3.1 vs 2.3 vs 1.8%, p = 0.008) and cesarean section (37.4 vs 34.1 vs 29.5%, p < 0.001) were significantly more frequent among women with eGWG. Additionally, there was a higher frequency of macrosomia (8.1 vs 3.6 vs 2.4%, p < 0.001), large-for-gestational-age (8.2 vs 3.7 vs 2.6%, p < 0.001) and birth trauma (2.6 vs 1.5 vs 1.1%, p < 0.001) in this group. On the other hand, fetal death (0.2 vs 0.2 vs 0.5%, p = 0.04), small-for-gestational-age (9 vs 10.3 vs 14.9, p < 0.001) and preterm delivery (5.6 vs 7.1 vs 7.5%, p = 0.03) were more frequent in iGWG group. CONCLUSIONS Over two-thirds of pregnant women with early-onset GDM had inappropriate GWG, which was significantly associated with adverse maternofetal outcomes. Weight management must be a focus of special attention in women with early-onset GDM, beyond glycemic control, to achieve healthy pregnancy outcomes.
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Affiliation(s)
- S S Monteiro
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal.
| | - T S Santos
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - L Fonseca
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - M Saraiva
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - T Pereira
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - J Vilaverde
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - F Pichel
- Division of Nutrition, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - C Pinto
- Division of Obstetrics, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - M C Almeida
- On Behalf of the Pregnancy and Diabetes Study Group of the Portuguese Diabetes Society, Maternidade Bissaya Barreto, Coimbra, Portugal
| | - J Dores
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
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Paredes S, Fonseca L, Saraiva M, Ramos H, Palma I. Statin intolerance: What are we overlooking? Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mafra D, Borges NA, Alvarenga L, Ribeiro M, Fonseca L, Leal VO, Shiels PG, Stenvinkel P. Fermented food: Should patients with cardiometabolic diseases go back to an early neolithic diet? Crit Rev Food Sci Nutr 2022; 63:10173-10196. [PMID: 35593230 DOI: 10.1080/10408398.2022.2077300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Fermentation has been used since the Early Neolithic period to preserve foods. It has inherent organoleptic and nutritive properties that bestow health benefits, including reducing inflammation and oxidative stress, supporting the growth of salutogenic microbiota, enhancing intestinal mucosal protection and promoting beneficial immunometabolic health effects. The fermentation of food with specific microbiota increases the production salutogenic bioactive compounds that can activate Nrf2 mediated cytoprotective responses and mitigate the effects of the 'diseasome of aging' and its associated inflammageing, which presents as a prominent feature of obesity, type-2 diabetes, cardiovascular and chronic kidney disease. This review discusses the importance of fermented food in improving health span, with special reference to cardiometabolic diseases.
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Affiliation(s)
- D Mafra
- Post Graduation Program in Medical Sciences, Federal Fluminense University, Niterói-Rio de Janeiro, Brazil
- Graduate Program in Biological Sciences, Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - N A Borges
- Institute of Nutrition, University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - L Alvarenga
- Post Graduation Program in Medical Sciences, Federal Fluminense University, Niterói-Rio de Janeiro, Brazil
| | - M Ribeiro
- Graduate Program in Biological Sciences, Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - L Fonseca
- Post Graduation Program in Medical Sciences, Federal Fluminense University, Niterói-Rio de Janeiro, Brazil
| | - V O Leal
- Division of Nutrition, Pedro Ernesto University Hospital, University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - P G Shiels
- Wolfson Wohl Translational Research Centre, University of Glasgow, Bearsden, Glasgow, UK
| | - P Stenvinkel
- Division of Renal Medicine, Department of Clinical Science, Technology and Intervention, Karolinska Instituted, Stockholm, Sweden
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Estorninho M, Chozas S, Mendes A, Colwell F, Abrantes I, Fonseca L, Fernandes P, Costa C, Máguas C, Correia O, Antunes C. Differential Impact of the Pinewood Nematode on Pinus Species Under Drought Conditions. Front Plant Sci 2022; 13:841707. [PMID: 35360314 PMCID: PMC8961127 DOI: 10.3389/fpls.2022.841707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
The pinewood nematode (PWN), Bursaphelenchus xylophilus, responsible for the pine wilt disease (PWD), is a major threat to pine forests worldwide. Since forest mortality due to PWN might be exacerbated by climate, the concerns regarding PWD in the Mediterranean region are further emphasized by the projected scenarios of more drought events and higher temperatures. In this context, it is essential to better understand the pine species vulnerability to PWN under these conditions. To achieve that, physiological responses and wilting symptoms were monitored in artificially inoculated Pinus pinaster (P. pinaster), Pinus pinea (P. pinea), and Pinus radiata (P. radiata) saplings under controlled temperature (25/30°C) and water availability (watered/water stressed). The results obtained showed that the impact of PWN is species-dependent, being infected P. pinaster and P. radiata more prone to physiological and morphological damage than P. pinea. For the more susceptible species (P. pinaster and P. radiata), the presence of the nematode was the main driver of photosynthetic responses, regardless of their temperature or water regime conditions. Nevertheless, water potential was revealed to be highly affected by the synergy of PWN and the studied abiotic conditions, with higher temperatures (P. pinaster) or water limitation (P. radiata) increasing the impact of nematodes on trees' water status. Furthermore, water limitation had an influence on nematodes density and its allocation on trees' structures, with P. pinaster revealing the highest nematode abundance and inner dispersion. In inoculated P. pinea individuals, nematodes' population decreased significantly, emphasizing this species resistance to PWN. Our findings revealed a synergistic impact of PWN infection and stressful environmental conditions, particularly on the water status of P. pinaster and P. radiata, triggering disease symptoms and mortality of these species. Our results suggest that predicted drought conditions might facilitate proliferation and exacerbate the impact of PWN on these two species, through xylem cavitation, leading to strong changes in pine forests of the Mediterranean regions.
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Affiliation(s)
- Mariana Estorninho
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Sergio Chozas
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Angela Mendes
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | | | - Isabel Abrantes
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Luís Fonseca
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Patrícia Fernandes
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Catarina Costa
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Cristina Máguas
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Otília Correia
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Cristina Antunes
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
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Saraiva M, Fonseca L, Santos T, Vilaverde J, Pereira MT, Pichel F, Pinto C, Almeida MC, Dores J. Mild periconceptional hyperglycemia: predictor of adverse fetomaternal outcomes in gestational diabetes? Acta Diabetol 2021; 58:1209-1215. [PMID: 33856590 DOI: 10.1007/s00592-021-01714-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 03/30/2021] [Indexed: 12/16/2022]
Abstract
AIM To clarify whether mild first trimester hyperglycaemia (characteristic of early-onset GDM) is associated with higher incidence of congenital malformations and other adverse fetomaternal outcomes compared to women with second trimester hyperglycaemia (later-onset GDM). DESIGN AND METHODS We analyzed the Portuguese National GDM database, containing data collected between 2011 and 2017. Two study groups were defined: Group 1-Women with GDM diagnosed during the first trimester (with fasting glycemia ≥ 92 and < 126 mg/dL); Group 2-Women with GDM diagnosed after the first 12 weeks of gestation, with either fasting glycemia or oral glucose tolerance test, according to the International Association of Pregnancy and Diabetes Study Group criteria. The fetomaternal characteristics of each group were compared. RESULTS A total of 18.518 pregnant women diagnosed with GDM were included which 34.4% of them belonged to Group 1. Pregnant women from this group were significantly younger and had a higher median BMI than the women from the other group. Overall, there was no significant differences in maternal morbidity parameters between groups. Non-evolutive pregnancies were significantly more frequent along the present gestation in the group 1 (1.1% vs. 0.1%, p < 0.001), as was fetal death (0.6% vs. 0.2%, p < 0.001). Congenital malformations did not differ significantly between groups (3.2% vs. 2.8%, p = 0.155). CONCLUSIONS The mild near conceptional hyperglycaemic state characteristic of an early-onset GDM seems to be associated with an increased prevalence of non-evolutive pregnancies and foetal deaths when compared to later-onset GDM.
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Affiliation(s)
- M Saraiva
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal.
| | - L Fonseca
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - T Santos
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - J Vilaverde
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - M T Pereira
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - F Pichel
- Department of Nutrition, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - C Pinto
- Department of Gynecology and Obstetrics, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - M C Almeida
- On Behalf of the Pregnancy and Diabetes Study Group of the Portuguese Diabetes Society, Coimbra, Portugal
| | - J Dores
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar E Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
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Monteleone F, Gonçalves M, Fonseca L, Simões S, Gonçalves A, Machado E, Fonseca J. Clozapine-Induced Eosinophilia: a Case Report. Rev Colomb Psiquiatr (Engl Ed) 2021; 52:S0034-7450(21)00080-9. [PMID: 34167790 DOI: 10.1016/j.rcp.2021.04.004] [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] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 04/21/2021] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Clozapine is an atypical antipsychotic drug eligible for treatment-resistant schizophrenia. It frequently represents the best and the only choice in resistant schizophrenia. However, its use is feared by many professionals due to its possible adverse effects, such as eosinophilia. CASE REPORT We report a case of a young white male suffering from treatment-resistant schizophrenia who rapidly developed eosinophilia after starting clozapine. DISCUSSION We present a case of a 26-year-old white man diagnosed with schizophrenia with poor clinical response to several antipsychotics owing to which clozapine was started. Psychotic symptoms improved dramatically but a progressively ascendant eosinophilia was reported during serial haematological analyses. The patient remained physically asymptomatic. An exhaustive assessment with ancillary diagnostic tests revealed no cause for eosinophilia. Thus, a diagnosis of clozapine-induced eosinophilia was made. The drug was discontinued and eosinophil count progressively returned to normal but psychotic symptoms worsened. CONCLUSIONS Clozapine treatment is frequently feared due to its possible side effects and complications, delaying its use in refractory schizophrenia. Also, to our knowledge, there are no specific guidelines on how to manage haematological side effects such as eosinophilia. This is problematic as, in some cases, it may lead to an unnecessary withdrawal of clozapine with a worsening of psychotic symptoms. We present a brief discussion of the recent literature on the subject.
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Affiliation(s)
- Francesco Monteleone
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal.
| | | | - Luís Fonseca
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - Sónia Simões
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - Andreia Gonçalves
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - Eduarda Machado
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
| | - João Fonseca
- Psychiatry and Mental Health Department of Hospital Senhora da Oliveira, Guimarães, Portugal
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Cardoso JMS, Anjo SI, Manadas B, Silva H, Abrantes I, Nakamura K, Fonseca L. Virulence Biomarkers of Bursaphelenchus xylophilus: A Proteomic Approach. Front Plant Sci 2021; 12:822289. [PMID: 35211137 PMCID: PMC8861294 DOI: 10.3389/fpls.2021.822289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 12/28/2021] [Indexed: 05/19/2023]
Abstract
The pinewood nematode (PWN), Bursaphelenchus xylophilus, one of the most serious forest pests worldwide, is considered the causal agent of the pine wilt disease (PWD). The main host species belong to the genus Pinus, and a variation in the susceptibility of several pine species to PWN infection is well-known. It is also recognized that there is variation in the virulence among B. xylophilus isolates. In the present study, we applied a quantitative mass spectrometry-based proteomics approach to perform a deep characterization of proteomic changes across two B. xylophilus isolates with different virulence from different hosts and geographical origins. A total of 1,456 proteins were quantified and compared in the two isolates secretomes, and a total of 2,741 proteins were quantified and compared in the nematode proteomes in pine tree extract and fungus stimuli conditions. From the proteomic analyses, a group of proteins was selected and identified as potential virulence biomarkers and shed light on putative most pathogenic proteins of this plant-parasitic nematode. Proteomic data are available via ProteomeXchange with identifier PXD029377.
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Affiliation(s)
- Joana M. S. Cardoso
- Department of Life Sciences, Centre for Functional Ecology, University of Coimbra, Coimbra, Portugal
- *Correspondence: Joana M. S. Cardoso,
| | - Sandra I. Anjo
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Bruno Manadas
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Hugo Silva
- Department of Life Sciences, Centre for Functional Ecology, University of Coimbra, Coimbra, Portugal
| | - Isabel Abrantes
- Department of Life Sciences, Centre for Functional Ecology, University of Coimbra, Coimbra, Portugal
| | - Katsunori Nakamura
- Tohoku Research Center, Forestry and Forest Products Research Institute, Morioka, Japan
| | - Luís Fonseca
- Department of Life Sciences, Centre for Functional Ecology, University of Coimbra, Coimbra, Portugal
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Silva H, Anjo SI, Manadas B, Abrantes I, Fonseca L, Cardoso JMS. Comparative Analysis of Bursaphelenchus xylophilus Secretome Under Pinus pinaster and P. pinea Stimuli. Front Plant Sci 2021; 12:668064. [PMID: 34046053 PMCID: PMC8144518 DOI: 10.3389/fpls.2021.668064] [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] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 03/29/2021] [Indexed: 05/19/2023]
Abstract
The pinewood nematode (PWN), Bursaphelenchus xylophilus, the pine wilt disease's (PWD) causal agent, is a migratory endoparasitic nematode skilled to feed on pine tissues and on fungi that colonize the trees. In order to study B. xylophilus secretomes under the stimulus of pine species with different susceptibilities to disease, nematodes were exposed to aqueous pine extracts from Pinus pinaster (high-susceptible host) and P. pinea (low-susceptible host). Sequential windowed acquisition of all theoretical mass spectra (SWATH-MS) was used to determine relative changes in protein amounts between B. xylophilus secretions, and a total of 776 secreted proteins were quantified in both secretomes. From these, 22 proteins were found increased in the B. xylophilus secretome under the P. pinaster stimulus and 501 proteins increased under the P. pinea stimulus. Functional analyses of the 22 proteins found increased in the P. pinaster stimulus showed that proteins with peptidase, hydrolase, and antioxidant activities were the most represented. On the other hand, gene ontology (GO) enrichment analysis of the 501 proteins increased under the P. pinea stimulus revealed an enrichment of proteins with binding activity. The differences detected in the secretomes highlighted the diverse responses from the nematode to overcome host defenses with different susceptibilities and provide new clues on the mechanism behind the pathogenicity of this plant-parasitic nematode. Proteomic data are available via ProteomeXchange with identifier PXD024011.
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Affiliation(s)
- Hugo Silva
- University of Coimbra, Centre for Functional Ecology, Department of Life Sciences, Coimbra, Portugal
| | - Sandra I. Anjo
- CNC – Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Bruno Manadas
- CNC – Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Isabel Abrantes
- University of Coimbra, Centre for Functional Ecology, Department of Life Sciences, Coimbra, Portugal
| | - Luís Fonseca
- University of Coimbra, Centre for Functional Ecology, Department of Life Sciences, Coimbra, Portugal
| | - Joana M. S. Cardoso
- University of Coimbra, Centre for Functional Ecology, Department of Life Sciences, Coimbra, Portugal
- *Correspondence: Joana M. S. Cardoso,
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Haslett M, Santana C, Fonseca L, Coutinho L, Carrieri J, Fittipaldi J, Veloso I, Flores E, Costa J, Cabral C. Spotted fever outbreak with cases and deaths in the same family in a municipality in south eastern Brazil, 2019. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Ferreira N, Netto E, Fonseca L, Esteves S, Labareda M, Mota A, Pocinho R, Magalhães M, Santos F. PO-051 Surgery versus Radiotherapy in T1N0 glottic cancer: 10 year outcomes. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30217-8] [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]
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Pinello KC, Niza-Ribeiro J, Fonseca L, de Matos AJ. Incidence, characteristics and geographical distributions of canine and human non-Hodgkin's lymphoma in the Porto region (North West Portugal). Vet J 2019; 245:70-76. [PMID: 30819429 DOI: 10.1016/j.tvjl.2019.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 01/04/2023]
Abstract
Lymphoma is one of the most common neoplasms in dogs and it is one of the top five causes of cancer-related deaths, similar to human lymphoma. Companion animal epidemiological studies define dogs as sentinels of potential risk factors for human health, mainly due to shared environments, shorter disease latencies, and spontaneous disease. The aims of this study were to describe human and canine epidemiologic features of non-Hodgkin's lymphoma (NHL) and their similarities, and to investigate a possible geographical association in the incidence risks in the Greater Porto area, in north-western Portugal. The postal codes of human NHL patients diagnosed between 2005 and 2010 residing in the Greater Porto, Portugal, were obtained from North and Central Region Cancer Registries of Portugal. Available data from dogs diagnosed with lymphoma between 2005 and 2016 from several veterinary centres were also collected. Descriptive epidemiology, mapping cases, and age-standardised risks of NHL incidence (ASR) were determined for both species. The results showed a higher risk (P<0.05) of NHL in men (ASR men: 18.1 cases/100,000 inhabitants; women: 14.2 cases/100,000 inhabitants) and in male dogs (ASR males: 82 cases/100,000 dogs; females: 70 cases/100,000 dogs). The geographical distribution of human and canine ASR was well correlated (r=0.664, P<0.05), with the highest values for human and canine ASR detected in the same urban municipalities of the Greater Porto: Porto, Matosinhos and Maia. These findings suggest the existence of exposure similarities, supporting the relevance of cancer surveillance in pet animals as efficient tools to predict health hazards for humans.
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Affiliation(s)
- K C Pinello
- Department of Veterinary Clinics, Institute of Biomedical Sciences Abel Salazar, University of Porto, Portugal.
| | - J Niza-Ribeiro
- Department of Population Studies, Institute of Biomedical Sciences Abel Salazar, University of Porto, Portugal; EPIUnit, Institute of Public Health, ISPUP, University of Porto, Portugal
| | - L Fonseca
- Mapis, Mapping Intelligent Solutions, Porto, Portugal
| | - A J de Matos
- Department of Veterinary Clinics, Institute of Biomedical Sciences Abel Salazar, University of Porto, Portugal; Animal Science and Study Centre, CECA, Food and Agrarian Sciences and Technologies Institute, University of Porto, Portugal
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Cardoso JM, Fonseca L, Egas C, Abrantes I. Cysteine proteases secreted by the pinewood nematode, Bursaphelenchus xylophilus: In silico analysis. Comput Biol Chem 2018; 77:291-296. [DOI: 10.1016/j.compbiolchem.2018.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 07/27/2018] [Accepted: 10/20/2018] [Indexed: 12/14/2022]
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Fonseca L, Ribeiro L, Pinheiro J, Guerra A. [Parona Space Abscess Derived from Dental Disease: Multidisciplinary Approach]. ACTA MEDICA PORT 2018; 31:431-435. [PMID: 30189172 DOI: 10.20344/amp.9932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/20/2018] [Indexed: 11/20/2022]
Abstract
Parona Space infection is a rare forearm condition. We present a case of a 55-year-old male with pain and loss of function in the distal forearm for one week, with no previous history of trauma. Additionally, he presented a history of odontogenic infection, synchronous with the onset of the symptoms in the forearm, with spontaneous resolution. The wrist ultrasound found an abscess in the Parona space that was surgically drained. The bacterial culture test was positive for Streptococcus constellatus. Oral evaluation revealed symptomatic exacerbation in the upper left second molar of chronic periodontitis. Oral septic foci were eliminated and the patient had full recovery. Dental history, the bacteria isolated and the absence of trauma confirm the dental origin of the abscess. As far as the authors are aware, this is the first published case of an odontogenic forearm abscess. This case highlights the importance of systematic elimination of oral septic foci in the population.
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Affiliation(s)
- Luís Fonseca
- Serviço de Estomatologia. Hospital de S. José. Centro Hospitalar de Lisboa Central. Lisboa, Portugal
| | - Luís Ribeiro
- Serviço de Cirurgia Plástica e Reconstrutiva. Hospital de S. José. Centro Hospitalar de Lisboa Central. Lisboa. Portugal
| | - Jorge Pinheiro
- Unidade de Estomatologia Pediátrica. Hospital D. Estefânia. Centro Hospitalar de Lisboa Central. Lisboa. Portugal
| | - Ana Guerra
- Serviço de Cirurgia Plástica e Reconstrutiva. Hospital de S. José. Centro Hospitalar de Lisboa Central. Lisboa. Portugal
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Paredes S, Fonseca L, Alves M, Vilaverde J, Oliveira J, Palma I. Lipid goals in patients with metabolic syndrome – Is low-density lipoprotein-cholesterol enough? Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pereira A, Sposito A, Fonseca L, Saldanha A, Gazon V, Fo RS, Elias M, Martinez T. Body mass index and salt intake may lack clustering with other risk markers for hypertension in young and middle adults. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Fonseca L, Mota A, Netto E, Esteves S, Pocinho R, Labareda M, Santos F, Magalhães M. EP-1163: Partial Laryngectomy vs Definitive Radiotherapy: 10 year-Outcomes in T2N0 Glottic Cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31473-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Real C, Sobreira Fernandes D, Sá Couto P, Correia de Barros F, Esteves S, Aragão I, Fonseca L, Aguiar J, Branco T, Fernandes Moreira Z. Survival Predictors in Liver Transplantation: Time-Varying Effect of Red Blood Cell Transfusion. Transplant Proc 2017; 48:3303-3306. [PMID: 27931573 DOI: 10.1016/j.transproceed.2016.08.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 08/01/2016] [Accepted: 08/22/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Many attempts have been undertaken to better predict outcome after liver transplantation. The aim of this study was to identify the pre- and intraoperative variables that may influence the survival after liver transplantation, at a single institution. METHODS Anesthetic records from 543 consecutive patients who underwent liver transplantation from June 2006 to June 2014 were reviewed in this retrospective study. Patients undergoing retransplantation were excluded from the analysis, as were patients with familial amyloid polyneuropathy. Preoperative variables studied were age, sex, Model for End-Stage Liver Disease score, primary diagnosis, cold ischemia time, preoperative international normalized ratio, serum albumin, and and hemoglobin levels. Intraoperative variables included were norepinephrine consumption, blood loss, red blood cell transfusion, and surgical time. Variables significant in the univariate analysis with a P value of <.2 were included in a multivariate Cox regression model. RESULTS Only red blood cell transfusion (hazard ratio [HR], 1.16; 95% confidence interval [CI], 1.04-1.29) and female sex (HR, 1.71; 95% CI, 1.10-2.65) were identified as significant independent predictors for survival after liver transplantation. Because of proportionality assumption violation, the multivariate Cox regression model was subsequently upgraded by adding a time-varying interaction between red blood cell transfusion and time since liver transplantation. As a result, we found that at 3 months after liver transplantation, the rate of dying increased 14% (95% CI, 2%-26%) for each unit transfused, and at 6 months it increased 12% (95% CI, 0.3%-24%). CONCLUSIONS Red blood cell transfusion ceased to influence survival from 1 year onward.
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Affiliation(s)
- C Real
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal.
| | - D Sobreira Fernandes
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - P Sá Couto
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - F Correia de Barros
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - S Esteves
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - I Aragão
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - L Fonseca
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - J Aguiar
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - T Branco
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
| | - Z Fernandes Moreira
- Department of Anesthesiology, Intensive Care, and Emergency Medicine, Centro Hospitalar do Porto, Porto, Portugal
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Lagarto F, Gomes B, Couto PS, Correia de Barros F, Moreira Z, Branco T, Fonseca L, Aguiar J, Aragão I, Miranda HP, Daniel J, Esteves S. Perioperative Predictors of Survival After Liver Transplantation for Familial Amyloid Polyneuropathy in a Portuguese Center. Transplant Proc 2017; 48:2098-101. [PMID: 27569952 DOI: 10.1016/j.transproceed.2016.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/05/2016] [Accepted: 04/27/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND Liver transplantation (LT) has been the treatment of choice to halt the progression of familial amyloid polyneuropathy (FAP). Few studies have identified prognostic factors for post-LT survival in FAP. Our aim was to assess survival rate and to identify independent factors for survival after LT. METHODS This retrospective cohort study of FAP patients transplanted for the first time analyzed 116 transplantations from 2006 to 2014. The median follow-up period was 45.5 months. RESULTS The overall survival rates at 1 month, 1 year, and 5 years were 89%, 82% and 79%, respectively. On multivariate analysis, only number of red blood cell (RBC) units transfused during surgery, operation time, and body mass index were independent prognostic factors for patient survival. Only 30% of patients were transfused during surgery, and, in these, each RBC unit transfused increased mortality by 53%. The operation time increased mortality by 20% for every 15 minutes of surgery. CONCLUSIONS This study suggests that operation time and RBC transfused are predominant factors affecting post-LT survival in our FAP patients.
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Affiliation(s)
- F Lagarto
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal.
| | - B Gomes
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - P Sá Couto
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - F Correia de Barros
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - Z Moreira
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - T Branco
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - L Fonseca
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - J Aguiar
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - I Aragão
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal
| | - H P Miranda
- Department of Liver Transplantation, Centro Hospitalar do Porto, Porto, Portugal
| | - J Daniel
- Department of Liver Transplantation, Centro Hospitalar do Porto, Porto, Portugal
| | - S Esteves
- Department of Anesthesiology, Intensive Care, and Emergency, Centro Hospitalar do Porto, Porto, Portugal; Department of Liver Transplantation, Centro Hospitalar do Porto, Porto, Portugal
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Cardoso JMS, Anjo SI, Fonseca L, Egas C, Manadas B, Abrantes I. Bursaphelenchus xylophilus and B. mucronatus secretomes: a comparative proteomic analysis. Sci Rep 2016; 6:39007. [PMID: 27941947 PMCID: PMC5150578 DOI: 10.1038/srep39007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 08/01/2016] [Accepted: 11/16/2016] [Indexed: 11/09/2022] Open
Abstract
The pinewood nematode, Bursaphelenchus xylophilus, recognized as a worldwide major forest pest, is a migratory endoparasitic nematode with capacity to feed on pine tissues and also on fungi colonizing the trees. Bursaphelenchus mucronatus, the closest related species, differs from B. xylophilus on its pathogenicity, making this nematode a good candidate for comparative analyses. Secretome profiles of B. xylophilus and B. mucronatus were obtained and proteomic differences were evaluated by quantitative SWATH-MS. From the 681 proteins initially identified, 422 were quantified and compared between B. xylophilus and B. mucronatus secretomes and from these, 243 proteins were found differentially regulated: 158 and 85 proteins were increased in B. xylophilus and B. mucronatus secretomes, respectively. While increased proteins in B. xylophilus secretome revealed a strong enrichment in proteins with peptidase activity, the increased proteins in B. mucronatus secretome were mainly related to oxidative stress responses. The changes in peptidases were evaluated at the transcription level by RT-qPCR, revealing a correlation between the mRNA levels of four cysteine peptidases with secretion levels. The analysis presented expands our knowledge about molecular basis of B. xylophilus and B. mucronatus hosts interaction and supports the hypothesis of a key role of secreted peptidases in B. xylophilus pathogenicity.
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Affiliation(s)
- Joana M. S. Cardoso
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Sandra I. Anjo
- Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Luís Fonseca
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Conceição Egas
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Bruno Manadas
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Isabel Abrantes
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
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Pereira A, Monteiro E, Castilho P, Fonseca L, Roque C, Marques M, Xavier S, Macedo A. Disordered Eating Behaviors, Perfectionism And Perseverative Negative Thinking–study In a Clinical Sample. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
IntroductionIn a recent study developed with a community sample, we have found that although PNT mediated the relationship between perfectionist cognitions and bulimic behavior, the effect of perfectionism on other disordered eating dimensions, such as diet, was independent of the PNT levels (Monteiro et al., 2015).ObjectiveTo investigate if PNT mediates the relationship between perfectionism and disordered eating behaviors in a clinical sample.MethodsFifty-two patients with eating disorders/ED (mean age = 22.54 ± 7.637; mean BMI = 20.07 ± 4.192; 14.5% Anorexia Nervosa cases; 7.8% Bulimia Nervosa and 9.0% EDNOS) were assessed with the ED section of the Diagnostic Interview for Genetic Studies and fill in the Portuguese validated versions of Eating Attitudes Test/EAT-25 (to evaluate Bulimic behaviors/BB, Diet and Social pressure to eat), Multidimensional Perfectionism Scales (to evaluate perfectionism composite dimensions Evaluative Concerns/EC and Perfectionistic Strivings/PS) and Perseverative Thinking Questionnaire/PTQ-15 (to evaluate Repetitive Thought/RT, Cognitive interference and unproductiveness/CIU). Only variables significantly correlated with the outcomes (EAT-25_Total and its dimensions) were entered in the regression models. Mediation analyses using Preacher and Hayes bootstrapping methodology were performed.ResultsEC, PS, CIU and RT were significant predictors of EAT_Total. PA, CIU and PR were significant predictors of BB. EC and PS were significant predictors of Diet. CIU partially mediated the relationship between EC and EAT_Total (95% CI = 0.0025–0.3296) and between EC and BB (95% CI = 0.0037–0.1877).ConclusionAlso in a clinical sample, CII, the most pernicious dimension of PNT, mediates the relationship between perfectionism and disordered eating behavior, particularly bulimic behavior; diet is predicted by perfectionism independently of PNT.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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C. Semedo M, Karmali A, Martins S, Fonseca L. Generation of high-affinity monoclonal antibodies of IgG class against native β-d-glucans from basidiomycete mushrooms. Process Biochem 2016. [DOI: 10.1016/j.procbio.2015.11.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Semedo MC, Karmali A, Martins S, Fonseca L. Novel polyol-responsive monoclonal antibodies against extracellular β-D-glucans from Pleurotus ostreatus. Biotechnol Prog 2015; 32:116-25. [PMID: 26580487 DOI: 10.1002/btpr.2196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/05/2015] [Indexed: 11/06/2022]
Abstract
β-D-glucans from mushroom strains play a major role as biological response modifiers in several clinical disorders. Therefore, a specific assay method is of critical importance to find useful and novel sources of β-d-glucans with anti-tumor activity. Hybridoma technology was used to raise monoclonal antibodies (Mabs) against extracellular β-d-glucans (EBG) from Pleurotus ostreatus. Two of these hybridoma clones (3F8_3H7 and 1E6_1E8_B3) secreting Mabs against EBG from P. ostreatus were selected and 3F8_3H7 was used to investigate if they are polyol-responsive Mabs (PR-Mabs) by using ELlSA-elution assay. This hybridoma cell line secreted Mab of IgM class, which was purified in a single step by gel filtration chromatography on Sephacryl S-300HR, which revealed a protein band on native PAGE with Mr of 917 kDa. Specificity studies of Mab 3F8_3H7 revealed that it recognized a common epitope on several β-d-glucans from different basidiomycete strains as determined by indirect ELlSA and Western blotting under native conditions. This Mab exhibited high apparent affinity constant (KApp) for β-d-glucans from several mushroom strains. However, it revealed differential reactivity to some heat-treated β-d-glucans compared with the native forms suggesting that it binds to a conformation-sensitive epitope on β-d-glucan molecule. Epitope analysis of Mab 3F8_3H7 and 1E6_1E8_B3 was investigated by additivity index parameter, which revealed that they bound to the same epitope on some β-d-glucans and to different epitopes in other antigens. Therefore, these Mab can be used to assay for β-d-glucans as well as to act as powerful probes to detect conformational changes in these biopolymers.
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Affiliation(s)
- Magda C Semedo
- Chemical Engineering and Biotechnology Research Center and Departmental Area of Chemical Engineering of Instituto Superior De Engenharia De Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007, Lisboa, Portugal.,Centre for the Research and Technology Agro-Environment and Biological Sciences, Universidade De Trás-os-Montes E Alto Douro, Quinta De Prados, Apartado 1013, 5001-801 Vila Real, Portugal
| | - Amin Karmali
- Chemical Engineering and Biotechnology Research Center and Departmental Area of Chemical Engineering of Instituto Superior De Engenharia De Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007, Lisboa, Portugal.,Centre for the Research and Technology Agro-Environment and Biological Sciences, Universidade De Trás-os-Montes E Alto Douro, Quinta De Prados, Apartado 1013, 5001-801 Vila Real, Portugal
| | - Sónia Martins
- Chemical Engineering and Biotechnology Research Center and Departmental Area of Chemical Engineering of Instituto Superior De Engenharia De Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007, Lisboa, Portugal.,Centre for the Research and Technology Agro-Environment and Biological Sciences, Universidade De Trás-os-Montes E Alto Douro, Quinta De Prados, Apartado 1013, 5001-801 Vila Real, Portugal
| | - Luís Fonseca
- Dept. of Bioengineering, Centre for Biological and Chemical Engineering of Instituto Superior Técnico, Av. Rovisco Pais, 1, 1049-001, Lisboa, Portugal
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C. Semedo M, Karmali A, Fonseca L. A novel colorimetric assay of β-D-glucans in basidiomycete strains by alcian blue dye in a 96-well microtiter plate. Biotechnol Prog 2015; 31:1526-35. [DOI: 10.1002/btpr.2163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/02/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Magda C. Semedo
- Chemical Engineering and Biotechnology Research Centre and Departmental Area of Chemical Engineering of Instituto Superior De Engenharia De Lisboa; R. Conselheiro Emídio Navarro, 1 Lisboa 1959-007 Portugal
- Centre for the Research and Technology Agro-Environment and Biological Sciences, Universidade De Trás-os-Montes E Alto Douro; Quinta de Prados, Apartado 1013 Vila Real 5001-801 Portugal
| | - Amin Karmali
- Chemical Engineering and Biotechnology Research Centre and Departmental Area of Chemical Engineering of Instituto Superior De Engenharia De Lisboa; R. Conselheiro Emídio Navarro, 1 Lisboa 1959-007 Portugal
- Centre for the Research and Technology Agro-Environment and Biological Sciences, Universidade De Trás-os-Montes E Alto Douro; Quinta de Prados, Apartado 1013 Vila Real 5001-801 Portugal
| | - Luís Fonseca
- Department of Bioengineering; Centre for Biological and Chemical Engineering of Instituto Superior Técnico; Av. Rovisco Pais, 1 Lisboa 1049-001 Portugal
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Gadea G, Morata A, Santos JD, Dávila D, Calaza C, Salleras M, Fonseca L, Tarancón A. Towards a full integration of vertically aligned silicon nanowires in MEMS using silane as a precursor. Nanotechnology 2015; 26:195302. [PMID: 25902702 DOI: 10.1088/0957-4484/26/19/195302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Silicon nanowires present outstanding properties for electronics, energy, and environmental monitoring applications. However, their integration into microelectromechanical systems (MEMS) is a major issue so far due to low compatibility with mainstream technology, which complicates patterning and controlled morphology. This work addresses the growth of 〈111〉 aligned silicon nanowire arrays fully integrated into standard MEMS processing by means of the chemical vapor deposition-vapor liquid solid method (CVD-VLS) using silane as a precursor. A reinterpretation of the galvanic displacement method is presented for selectively depositing gold nanoparticles of controlled size and shape. Moreover, a comprehensive analysis of the effects of synthesis temperature and pressure on the growth rate and alignment of nanowires is presented for the most common silicon precursor, i.e., silane. Compared with previously reported protocols, the redefined galvanic displacement together with a silane-based CVD-VLS growth methodology provides a more standard and low-temperature (<650 °C) synthesis scheme and a compatible route to reliably grow Si nanowires in MEMS for advanced applications.
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Affiliation(s)
- G Gadea
- Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Barcelona, Spain
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Couëdelo L, Amara S, Lecomte M, Meugnier E, Monteil J, Fonseca L, Pineau G, Cansell M, Carrière F, Michalski MC, Vaysse C. Impact of various emulsifiers on ALA bioavailability and chylomicron synthesis through changes in gastrointestinal lipolysis. Food Funct 2015; 6:1726-35. [PMID: 25923344 DOI: 10.1039/c5fo00070j] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [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: 01/05/2023]
Abstract
Formulating healthy food rich in omega 3 fatty acids requires prior knowledge of the parameters influencing their bioavailability and their metabolic fate. In this context, we studied the effects of various emulsifiers widely used in the food industry, on the gastrointestinal lipolysis of flaxseed oil emulsions in an in vitro model and on the intestinal absorption and lymphatic secretion of alpha-linolenic acid (ALA) in rats. In vitro data showed that the emulsification of flaxseed oil with soya lecithin improved the gastric lipolysis of the oil (+30%), while the presence of Tween 80 or of sodium caseinate decreased it (-80% and -40%, respectively). The in vivo data demonstrated that the intestinal absorption and the lymphatic secretion of ALA were improved with soya lecithin (Cmax = 24 mg mL(-1)) and reduced in the presence of sodium caseinate (Cmax = 7 mg mL(-1)) compared to unemulsified flaxseed oil (Cmax = 16 mg mL(-1)); Tween 80 had no effect. In addition, the synthesized chylomicrons were notably larger and more numerous with soya lecithin whereas they were smaller in the presence of sodium caseinate (p < 0.05). This study shows that the intestinal bioavailability of ALA was increased by the emulsification of flaxseed oil with soya lecithin via an improved lipolysis, favouring the intestinal absorption of ALA and the secretion of many large chylomicrons in lymph.
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Affiliation(s)
- L Couëdelo
- ITERG-ENMS, Université de Bordeaux, rue Léo Saignat, 33076 Bordeaux cedex, France.
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Pereira A, Monteiro E, Pereira A, Castilho P, Fonseca L, Roque C, Macedo A. Disordered Eating Behaviors, Perfectionism Cognitions and Perseverative Negative Thinking. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)32027-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Carvalho PCF, Bremm C, Mezzalira JC, Fonseca L, da Trindade JK, Bonnet OJF, Tischler M, Genro TCM, Nabinger C, Laca EA. Can animal performance be predicted from short-term grazing processes? Anim Prod Sci 2015. [DOI: 10.1071/an14546] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Despite all the biotic and abiotic factors affecting foraging by ruminants, there is a common and fundamental process, which is bite gathering. We hypothesised that because the mechanics of bite formation dominate the foraging process, changes in short-term bite mass are reflected in longer-term animal performance across a wide range of sward conditions. We focus at the meal level of foraging, using experiments in which the effect of abiotic factors and digestive constrains are minimised, making intake rate the main currency. We estimated bite mass across a wide range of structural challenges to large-herbivore foraging in a long-term experiment with heterogeneous native grasslands. A conceptual model was developed for average daily gain, where energy gain and energy costs were proximate causal variables. Energy gain was a function of diet quality and components of daily intake rate, where bite mass was the main component estimated. In turn, components of intake rate were determined by sward structure and bodyweight. Energy costs were a function of bodyweight and abiotic conditions. Finally, sward structure, bodyweight and abiotic conditions were determined by experimental treatments, seasons and years. Then, the conceptual model was translated into statistical models that included variables measured or estimated, and coefficients representing all links in the conceptual model. Weight gain was a function of bite mass, forage characteristics, and animal and abiotic conditions. Models were set up to test whether forage and stocking conditions affected monthly gain beyond the effects through bite mass, after correcting for abiotic factors. Forage mass, height and disappearance did help predict monthly gain after bite mass was included in the model, which supported our hypothesis. However, stocking treatments and season had significant effects not incorporated in bite mass. Although the model explained 77.9% of liveweight gain variation, only 35.2% was due to fixed effects, with 10.8% accounted by bite mass and its interactions. Concomitant experiments showed that sward structure (first with sward height and the second with tussock cover) does determine bite mass and short-term intake rate in the complex native grasslands we studied. Yet, other temporal varying components of monthly gain not correlated with bite mass, temperature or wind, added most of the observed variation in monthly animal performance. Part of the model failure to account for variation in performance may be related to a significant and temporally variable grazing of tussocks. We used a bite mass model that assumed no tussock grazing. In light of these results and a parallel experiment, we conclude that tussock grazing must be incorporated in future versions of the model.
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Calaza C, Salleras M, Dávila D, Tarancón A, Morata A, Santos J, Gadea G, Fonseca L. Bottom-up Silicon Nanowire Arrays for Thermoelectric Harvesting. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.matpr.2015.05.085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Semedo MC, Karmali A, Fonseca L. A high throughput colorimetric assay of β-1,3-D-glucans by Congo red dye. J Microbiol Methods 2014; 109:140-8. [PMID: 25555819 DOI: 10.1016/j.mimet.2014.12.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 12/27/2014] [Accepted: 12/28/2014] [Indexed: 10/24/2022]
Abstract
Mushroom strains contain complex nutritional biomolecules with a wide spectrum of therapeutic and prophylactic properties. Among these compounds, β-d-glucans play an important role in immuno-modulating and anti-tumor activities. The present work involves a novel colorimetric assay method for β-1,3-d-glucans with a triple helix tertiary structure by using Congo red. The specific interaction that occurs between Congo red and β-1,3-d-glucan was detected by bathochromic shift from 488 to 516 nm (>20 nm) in UV-Vis spectrophotometer. A micro- and high throughput method based on a 96-well microtiter plate was devised which presents several advantages over the published methods since it requires only 1.51 μg of polysaccharides in samples, greater sensitivity, speed, assay of many samples and very cheap. β-D-Glucans of several mushrooms (i.e., Coriolus versicolor, Ganoderma lucidum, Pleurotus ostreatus, Ganoderma carnosum, Hericium erinaceus, Lentinula edodes, Inonotus obliquus, Auricularia auricular, Polyporus umbellatus, Cordyseps sinensis, Agaricus blazei, Poria cocos) were isolated by using a sequence of several extractions with cold and boiling water, acidic and alkaline conditions and quantified by this microtiter plate method. FTIR spectroscopy was used to study the structural features of β-1,3-D-glucans in these mushroom samples as well as the specific interaction of these polysaccharides with Congo red. The effect of NaOH on triple helix conformation of β-1,3-D-glucans was investigated in several mushroom species.
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Affiliation(s)
- Magda C Semedo
- Chemical Engineering and Biotechnology Research Center and Departmental Area of Chemical Engineering of Instituto Superior de Engenharia de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
| | - Amin Karmali
- Chemical Engineering and Biotechnology Research Center and Departmental Area of Chemical Engineering of Instituto Superior de Engenharia de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal.
| | - Luís Fonseca
- Department of Bioengineering, Centre for Biological and Chemical Engineering of Instituto Superior Técnico, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal
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Azevedo E, Poli C, David D, Amaral G, Fonseca L, Carvalho P, Fischer V, Morris S. Use of faecal components as markers to estimate intake and digestibility of grazing sheep. Livest Sci 2014. [DOI: 10.1016/j.livsci.2014.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fonseca L, Machado Á. Suicidal behaviour in frontotemporal dementia patients--a retrospective study. Int J Geriatr Psychiatry 2014; 29:217-8. [PMID: 24408733 DOI: 10.1002/gps.4000] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 06/04/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Luís Fonseca
- Department of Psychiatry, Centro Hospitalar do Alto Ave, Guimarães, Portugal; Department of Neurosciences, Life and Health Sciences Research Institute, Braga, Portugal.
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Figueiredo J, Simões MJ, Gomes P, Barroso C, Pinho D, Conceição L, Fonseca L, Abrantes I, Pinheiro M, Egas C. Assessment of the geographic origins of pinewood nematode isolates via single nucleotide polymorphism in effector genes. PLoS One 2013; 8:e83542. [PMID: 24391785 PMCID: PMC3877046 DOI: 10.1371/journal.pone.0083542] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [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: 03/20/2013] [Accepted: 11/05/2013] [Indexed: 11/18/2022] Open
Abstract
The pinewood nematode, Bursaphelenchus xylophilus, is native to North America but it only causes damaging pine wilt disease in those regions of the world where it has been introduced. The accurate detection of the species and its dispersal routes are thus essential to define effective control measures. The main goals of this study were to analyse the genetic diversity among B. xylophilus isolates from different geographic locations and identify single nucleotide polymorphism (SNPs) markers for geographic origin, through a comparative transcriptomic approach. The transcriptomes of seven B. xylophilus isolates, from Continental Portugal (4), China (1), Japan (1) and USA (1), were sequenced in the next generation platform Roche 454. Analysis of effector gene transcripts revealed inter-isolate nucleotide diversity that was validated by Sanger sequencing in the genomic DNA of the seven isolates and eight additional isolates from different geographic locations: Madeira Island (2), China (1), USA (1), Japan (2) and South Korea (2). The analysis identified 136 polymorphic positions in 10 effector transcripts. Pairwise comparison of the 136 SNPs through Neighbor-Joining and the Maximum Likelihood methods and 5-mer frequency analysis with the alignment-independent bilinear multivariate modelling approach correlated the SNPs with the isolates geographic origin. Furthermore, the SNP analysis indicated a closer proximity of the Portuguese isolates to the Korean and Chinese isolates than to the Japanese or American isolates. Each geographic cluster carried exclusive alleles that can be used as SNP markers for B. xylophilus isolate identification.
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Affiliation(s)
- Joana Figueiredo
- Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Maria José Simões
- Genoinseq, Next Generation Sequencing Unit, Biocant, Cantanhede, Portugal
| | - Paula Gomes
- Genoinseq, Next Generation Sequencing Unit, Biocant, Cantanhede, Portugal
| | - Cristina Barroso
- Genoinseq, Next Generation Sequencing Unit, Biocant, Cantanhede, Portugal
| | - Diogo Pinho
- Genoinseq, Next Generation Sequencing Unit, Biocant, Cantanhede, Portugal
| | - Luci Conceição
- IMAR-CMA, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Luís Fonseca
- IMAR-CMA, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Isabel Abrantes
- IMAR-CMA, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Miguel Pinheiro
- Genoinseq, Next Generation Sequencing Unit, Biocant, Cantanhede, Portugal
| | - Conceição Egas
- Genoinseq, Next Generation Sequencing Unit, Biocant, Cantanhede, Portugal
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Paiva G, Proença DN, Francisco R, Verissimo P, Santos SS, Fonseca L, Abrantes IMO, Morais PV. Nematicidal bacteria associated to pinewood nematode produce extracellular proteases. PLoS One 2013; 8:e79705. [PMID: 24244546 PMCID: PMC3820709 DOI: 10.1371/journal.pone.0079705] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [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: 06/27/2013] [Accepted: 09/23/2013] [Indexed: 11/18/2022] Open
Abstract
Bacteria associated with the nematode Bursaphelenchus xylophilus, a pathogen of trees and the causal agent of pine wilt disease (PWD) may play a role in the disease. In order to evaluate their role (positive or negative to the tree), strains isolated from the track of nematodes from infected Pinus pinaster trees were screened, in vitro, for their nematicidal potential. The bacterial products, from strains more active in killing nematodes, were screened in order to identify and characterize the nematicidal agent. Forty-seven strains were tested and, of these, 21 strains showed capacity to produce extracellular products with nematicidal activity. All Burkholderia strains were non-toxic. In contrast, all Serratia strains except one exhibited high toxicity. Nematodes incubated with Serratia strains showed, by SEM observation, deposits of bacteria on the nematode cuticle. The most nematicidal strain, Serratia sp. A88copa13, produced proteases in the supernatant. The use of selective inhibitors revealed that a serine protease with 70 kDa was majorly responsible for the toxicity of the supernatant. This extracellular serine protease is different phylogenetically, in size and biochemically from previously described proteases. Nematicidal assays revealed differences in nematicidal activity of the proteases to different species of Bursaphelenchus, suggesting its usefulness in a primary screen of the nematodes. This study offers the basis for further investigation of PWD and brings new insights on the role bacteria play in the defense of pine trees against B. xylophilus. Understanding all the factors involved is important in order to develop strategies to control B. xylophilus dispersion.
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Affiliation(s)
- Gabriel Paiva
- IMAR – Marine and Environmental Research Center, University of Coimbra, Coimbra, Portugal
| | - Diogo Neves Proença
- IMAR – Marine and Environmental Research Center, University of Coimbra, Coimbra, Portugal
| | - Romeu Francisco
- IMAR – Marine and Environmental Research Center, University of Coimbra, Coimbra, Portugal
| | - Paula Verissimo
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- Department of Life Sciences, FCTUC, University of Coimbra, Coimbra, Portugal
| | - Susana S. Santos
- IMAR – Marine and Environmental Research Center, University of Coimbra, Coimbra, Portugal
| | - Luís Fonseca
- IMAR – Marine and Environmental Research Center, University of Coimbra, Coimbra, Portugal
| | - Isabel M. O. Abrantes
- IMAR – Marine and Environmental Research Center, University of Coimbra, Coimbra, Portugal
- Department of Life Sciences, FCTUC, University of Coimbra, Coimbra, Portugal
| | - Paula V. Morais
- IMAR – Marine and Environmental Research Center, University of Coimbra, Coimbra, Portugal
- Department of Life Sciences, FCTUC, University of Coimbra, Coimbra, Portugal
- * E-mail:
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Fonseca L, Carvalho PCF, Mezzalira JC, Bremm C, Galli JR, Gregorini P. Effect of sward surface height and level of herbage depletion on bite features of cattle grazing Sorghum bicolor swards1. J Anim Sci 2013; 91:4357-65. [DOI: 10.2527/jas.2012-5602] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [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)
- L. Fonseca
- Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91540-000, Brazil
| | - P. C. F. Carvalho
- Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91540-000, Brazil
| | - J. C. Mezzalira
- Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91540-000, Brazil
| | - C. Bremm
- Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91540-000, Brazil
| | - J. R. Galli
- Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Departamento de Produccion Animal, Zavalla, Santa Fe, Argentina
| | - P. Gregorini
- DairyNZ Ltd. Corner of Ruakura and Morrinsville Roads, 3240, Hamilton, New Zealand
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Jochims F, Poli C, Carvalho P, David D, Campos N, Fonseca L, Amaral G. Grazing methods and herbage allowances effects on animal performances in natural grassland grazed during winter and spring with early pregnant ewes. Livest Sci 2013. [DOI: 10.1016/j.livsci.2013.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Moreira C, van Asch B, Fonseca L, Pereira-Castro I, Silva R, Azevedo L, Mota M, Abrantes I, Amorim A, Pereira F. The mitochondrial genome of the pinewood nematode (Bursaphelenchus xylophilus) lineage introduced in Europe. ACTA ACUST UNITED AC 2013; 25:420-1. [PMID: 23841612 DOI: 10.3109/19401736.2013.809438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The pinewood nematode (PWN) Bursaphelenchus xylophilus is the causative agent of pine wilt disease and the greatest biological threat to conifer forests worldwide. Here we describe the near-complete mitochondrial DNA (mtDNA) sequence (12,945 bp) of the PWN lineage recently introduced in Europe. The absence of polymorphisms across the mtDNA of three Portuguese isolates suggests that a single mitochondrial lineage was introduced in southwestern Europe. We also found that Portuguese isolates have an incomplete stop codon (TA) at COX3, while the reference mtDNA from a South Korean isolate has a complete stop codon (TAA). Moreover, two insertion/deletion polymorphisms change the ND4 protein in a stretch of seven amino acids, and a polymorphic mononucleotide repeat alters the predicted structure of the tyrosine tRNA in different geographical isolates. Overall, the new PWN mtDNA sequence provides a basis for studying the European dispersion of this important invasive species.
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Affiliation(s)
- Cláudia Moreira
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP) , Porto , Portugal
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Pereira F, Moreira C, Fonseca L, van Asch B, Mota M, Abrantes I, Amorim A. New insights into the phylogeny and worldwide dispersion of two closely related nematode species, Bursaphelenchus xylophilus and Bursaphelenchus mucronatus. PLoS One 2013; 8:e56288. [PMID: 23409167 PMCID: PMC3568074 DOI: 10.1371/journal.pone.0056288] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [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: 07/16/2012] [Accepted: 01/12/2013] [Indexed: 11/19/2022] Open
Abstract
The pinewood nematode, Bursaphelenchus xylophilus, is one of the greatest threats to coniferous forests worldwide, causing severe ecological damage and economic loss. The biology of B. xylophilus is similar to that of its closest relative, B. mucronatus, as both species share food resources and insect vectors, and have very similar morphological characteristics, although little pathogenicity to conifers has been associated with B. mucronatus. Using both nuclear and mitochondrial DNA markers, we show that B. xylophilus and B. mucronatus form distinct phylogenetic groups with contrasting phylogeographic patterns. B. xylophilus presents lower levels of intraspecific diversity than B. mucronatus, as expected for a species that evolved relatively recently through geographical or reproductive isolation. Genetic diversity was particularly low in recently colonised areas, such as in southwestern Europe. By contrast, B. mucronatus displays high levels of genetic diversity and two well-differentiated clades in both mitochondrial and nuclear DNA phylogenies. The lack of correlation between genetic and geographic distances in B. mucronatus suggests intense gene flow among distant regions, a phenomenon that may have remained unnoticed due to the reduced pathogenicity of the species. Overall, our findings suggest that B. xylophilus and B. mucronatus have different demographic histories despite their morphological resemblance and ecological overlap. These results suggest that Bursaphelenchus species are a valuable model for understanding the dispersion of invasive species and the risks posed to native biodiversity and ecosystems.
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Affiliation(s)
- Filipe Pereira
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto, Portugal.
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Dolz G, Solórzano-Morales Á, Angelova L, Tien C, Fonseca L, Bonilla M. Chlamydia psittaci genotype B in a pigeon (Columba livia) inhabiting a public place in San José, Costa Rica. Open Vet J 2013; 3:135-9. [PMID: 26623327 PMCID: PMC4629625] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 11/20/2013] [Indexed: 11/05/2022] Open
Abstract
Human chlamydiosis is a zoonotic disease of avian origin caused by Chlamydia psittaci. The highest infection rates have been detected in parrots (Psittacidae) and pigeons (Columbiformes), the latter most frequently carry the genotypes B and E. These genotypes have been shown to also infect humans. Because pigeons (Columba livia) cohabit with humans in urban areas, C. psittaci present in the dust from dry feces of infected pigeons may be transmitted by inhalation and represent a significant public health problem. Between 2012 and 2013 a total of 120 fecal samples were collected from pigeons at four public places (Plaza de la Cultura, Parque Morazán, Parque Central de Guadalupe, Plaza de las Garantías Sociales) in San José, Costa Rica. A nested polymerase chain reaction (PCR) was used to amplify a region of the outer membrane protein A gene of C. psittaci. Only one sample was positive in PCR and the positive sample was further subjected to sequencing and genotyping. Sequencing identified this sample as C. psittaci genotype B. This study is the first report to show the presence of this organism in pigeons of Costa Rica, and shows that the infected pigeons may represent a significant risk for humans who visit public places that are inhabited by pigeons.
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Affiliation(s)
- G. Dolz
- Laboratorio de Entomología y Medicina Poblacional, Escuela de Medicina Veterinaria, Universidad Nacional, P.O. Box 86-3000, Heredia, Costa Rica,Corresponding Author: Gaby Dolz. Escuela de Medicina Veterinaria, Universidad Nacional, P.O. Box 86-3000, Heredia, Costa Rica. Tel.: (506) 2562 4508; Fax: (506) 2237 5229.
| | - Á. Solórzano-Morales
- Laboratorio de Entomología y Medicina Poblacional, Escuela de Medicina Veterinaria, Universidad Nacional, P.O. Box 86-3000, Heredia, Costa Rica
| | - L. Angelova
- Laboratorio de Entomología y Medicina Poblacional, Escuela de Medicina Veterinaria, Universidad Nacional, P.O. Box 86-3000, Heredia, Costa Rica
| | - C. Tien
- Laboratorio de Entomología y Medicina Poblacional, Escuela de Medicina Veterinaria, Universidad Nacional, P.O. Box 86-3000, Heredia, Costa Rica
| | - L. Fonseca
- Laboratorio de Entomología y Medicina Poblacional, Escuela de Medicina Veterinaria, Universidad Nacional, P.O. Box 86-3000, Heredia, Costa Rica
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Fonseca L, Mezzalira J, Bremm C, Filho R, Gonda H, Carvalho PCF. Management targets for maximising the short-term herbage intake rate of cattle grazing in Sorghum bicolor. Livest Sci 2012. [DOI: 10.1016/j.livsci.2012.02.003] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Fonseca L, Duarte J. Schizophrenia-like alcoholic dementia or dementia praecox. J Neuropsychiatry Clin Neurosci 2011; 23:E11. [PMID: 21304110 DOI: 10.1176/jnp.23.1.jnpe11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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Tedrus G, Fonseca L. P2.5 Somatosensory evoked spikes on the EEG: evolutive clinical and electroencephalographic aspects in 313 children. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60204-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fonseca L, Tedrus G, Fondello M, Reis I, Fontoura D. P8.6 Electroencephalographic theta and alpha reactivity on opening the eyes in the diagnosis of Alzheimer's disease. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60337-4] [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: 10/17/2022]
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Fonseca L, Tedrus G, Silva T, Bianchini M. P2.3 Attention-deficit/hyperactivity disorder: school performance test and electroencephalographic alpha reactivity. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60202-2] [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: 10/17/2022]
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