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Dion R, Moreira S, Bernaquez I, Fournier É, Levade I. 409 - Analyses descriptive et phylogénétique des cas dus au variant Lambda du SRAS-CoV-2, Québec. Rev Epidemiol Sante Publique 2022. [DOI: 10.1016/j.respe.2022.06.092] [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: 10/16/2022] Open
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2
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Abstract
During vertebrate embryogenesis, tissues interact and influence each other's development to shape an embryo. While communication by molecular components has been extensively explored, the role of mechanical interaction between tissues during embryogenesis is just starting to be revealed. Addressing mechanical involvement in morphogenesis has traditionally been challenging mainly due to the lack of proper tools to measure and modify mechanical environments of cells in vivo. We have recently used atomic force microscopy (AFM) to show that the migration of the Xenopus laevis cephalic neural crest cells is triggered by stiffening of the mesoderm, a tissue that neural crest cells use as a migratory substrate in vivo. Interestingly we showed that the activity of the planar cell polarity (PCP) pathway is required to mediate this novel mechanical interaction between two tissues. In this chapter, we share the toolbox that we developed to study the role of PCP signaling in mesoderm cell accumulation and stiffening (in vivo) as well as the impact of mesoderm stiffness in promoting neural crest cell polarity and migration (ex vivo). We believe that these tools can be of general use for investigators interested in addressing the role of mechanical inputs in vivo and ex vivo.
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Affiliation(s)
- Sofia Moreira
- Mechanisms of Morphogenesis Lab, Gulbenkian Institute of Science (IGC), Oeiras, Portugal
| | - Jaime A Espina
- Mechanisms of Morphogenesis Lab, Gulbenkian Institute of Science (IGC), Oeiras, Portugal
| | - Joana E Saraiva
- Mechanisms of Morphogenesis Lab, Gulbenkian Institute of Science (IGC), Oeiras, Portugal
| | - Elias H Barriga
- Mechanisms of Morphogenesis Lab, Gulbenkian Institute of Science (IGC), Oeiras, Portugal.
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3
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Silva MR, Paiva T, Reis C, Feliciano A, Gaspar T, Canhão H, Matos MG, Pereira C, Carreiro A, Lino A, Moreira S, Bernarda A, Gaspar S, Ramiro L, Fonseca J, Videira G. Effects of Covid-19 confinement on portuguese adults’ nutrition, physical activity and sleep. Clin Nutr ESPEN 2021. [PMCID: PMC8674507 DOI: 10.1016/j.clnesp.2021.09.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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4
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Gonzalez-Bermejo J, Hajage D, Durand-Zaleski I, Arnal JM, Cuvelier A, Grassion L, Jaffre S, Lamia B, Pontier S, Prigent A, Rabec C, Raherison-Semjen C, Saint Raymond C, Soler J, Trzepizur W, Winck JC, Aguiar M, Chaves H, Conde B, Guimarães MJ, Lopes P, Mineiro A, Moreira S, Pamplona P, Rodrigues CM, Sousa S, Antón A, Córdoba-Izquierdo A, Embid C, Esteban González C, Ezzine F, Garcia P, González M, Guerassimova I, López D, Lujan M, Martí Beltran S, Martinez JM, Masa F, Pascual N, Peñacoba N, Resano P, Rey L, Rodríguez Jerez F, Roncero A, Sancho Chinesta J, Sayas Catalán J. Respiratory support in COPD patients after acute exacerbation with monitoring the quality of support (Rescue2-monitor): an open-label, prospective randomized, controlled, superiority clinical trial comparing hospital- versus home-based acute non-invasive ventilation for patients with hypercapnic chronic obstructive pulmonary disease. Trials 2020; 21:877. [PMID: 33092618 PMCID: PMC7578582 DOI: 10.1186/s13063-020-04672-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/12/2020] [Indexed: 12/03/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is expected to be the 3rd leading cause of death worldwide by 2020. Despite improvements in survival by using acute non-invasive ventilation (NIV) to treat patients with exacerbations of COPD complicated by acute hypercapnic respiratory failure (AHRF), these patients are at high risk of readmission and further life-threatening events, including death. Recent studies suggested that NIV at home can reduce readmissions, but in a small proportion of patients, and with a high level of expertise. Other studies, however, do not show any benefit of home NIV. This could be related to the fact that respiratory failure in patients with stable COPD and their response to mechanical ventilation are influenced by several pathophysiological factors which frequently coexist in the same patient to varying degrees. These pathophysiological factors might influence the success of home NIV in stable COPD, thus long-term NIV specifically adapted to a patient's "phenotype" is likely to improve prognosis, reduce readmission to hospital, and prevent death. In view of this conundrum, Rescue2-monitor (R2M), an open-label, prospective randomized, controlled study performed in patients with hypercapnic COPD post-AHRF, will investigate the impact of the quality of nocturnal NIV on the readmission-free survival. The primary objective is to show that any of 3 home NIV strategies ("rescue," "non-targeted," and "targeted") will improve readmission-free survival in comparison to no-home NIV. The "targeted" group of patients will receive a treatment with personalized (targeted) ventilation settings and extensive monitoring. Furthermore, the influence of comorbidities typical for COPD patients, such as cardiac insufficiency, OSA, or associated asthma, on ventilation outcomes will be taken into consideration and reasons for non-inclusion of patients will be recorded in order to evaluate the percentage of ventilated COPD patients that are screening failures. ClinicalTrials.gov NCT03890224 . Registered on March 26, 2019.
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5
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Ventura G, Moreira S, Barros-Carvalho A, Osswald M, Morais-de-Sá E. Lgl cortical dynamics are independent of binding to the Scrib-Dlg complex but require Dlg-dependent restriction of aPKC. Development 2020; 147:dev.186593. [PMID: 32665243 DOI: 10.1242/dev.186593] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 12/10/2019] [Accepted: 07/02/2020] [Indexed: 01/06/2023]
Abstract
Apical-basal polarity underpins the formation of epithelial barriers that are crucial for metazoan physiology. Although apical-basal polarity is long known to require the basolateral determinants Lethal Giant Larvae (Lgl), Discs Large (Dlg) and Scribble (Scrib), mechanistic understanding of their function is limited. Lgl plays a role as an aPKC inhibitor, but it remains unclear whether Lgl also forms complexes with Dlg or Scrib. Using fluorescence recovery after photobleaching, we show that Lgl does not form immobile complexes at the lateral domain of Drosophila follicle cells. Optogenetic depletion of plasma membrane PIP2 or dlg mutants accelerate Lgl cortical dynamics. However, Dlg and Scrib are required only for Lgl localization and dynamic behavior in the presence of aPKC function. Furthermore, light-induced oligomerization of basolateral proteins indicates that Lgl is not part of the Scrib-Dlg complex in the follicular epithelium. Thus, Scrib and Dlg are necessary to repress aPKC activity in the lateral domain but do not provide cortical binding sites for Lgl. Our work therefore highlights that Lgl does not act in a complex but in parallel with Scrib-Dlg to antagonize apical determinants.
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Affiliation(s)
- Guilherme Ventura
- i3S (Instituto de Investigação e Inovação em Saúde, Universidade do Porto) and IBMC (Instituto de Biologia Molecular e Celular), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Sofia Moreira
- i3S (Instituto de Investigação e Inovação em Saúde, Universidade do Porto) and IBMC (Instituto de Biologia Molecular e Celular), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - André Barros-Carvalho
- i3S (Instituto de Investigação e Inovação em Saúde, Universidade do Porto) and IBMC (Instituto de Biologia Molecular e Celular), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Mariana Osswald
- i3S (Instituto de Investigação e Inovação em Saúde, Universidade do Porto) and IBMC (Instituto de Biologia Molecular e Celular), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Eurico Morais-de-Sá
- i3S (Instituto de Investigação e Inovação em Saúde, Universidade do Porto) and IBMC (Instituto de Biologia Molecular e Celular), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
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6
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Moreira S, Osswald M, Ventura G, Gonçalves M, Sunkel CE, Morais-de-Sá E. PP1-Mediated Dephosphorylation of Lgl Controls Apical-basal Polarity. Cell Rep 2020; 26:293-301.e7. [PMID: 30625311 DOI: 10.1016/j.celrep.2018.12.060] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 08/01/2018] [Revised: 11/23/2018] [Accepted: 12/13/2018] [Indexed: 12/17/2022] Open
Abstract
Apical-basal polarity is a common trait that underlies epithelial function. Although the asymmetric distribution of cortical polarity proteins works in a functioning equilibrium, it also retains plasticity to accommodate cell division, during which the basolateral determinant Lgl is released from the cortex. Here, we investigated how Lgl restores its cortical localization to maintain the integrity of dividing epithelia. We show that cytoplasmic Lgl is reloaded to the cortex at mitotic exit in Drosophila epithelia. Lgl cortical localization depends on protein phosphatase 1, which dephosphorylates Lgl on the serines phosphorylated by aPKC and Aurora A kinases through a mechanism that relies on the regulatory subunit Sds22 and a PP1-interacting RVxF motif of Lgl. This mechanism maintains epithelial polarity and is of particular importance at mitotic exit to couple Lgl cortical reloading with the polarization of the apical domain. Hence, PP1-mediated dephosphorylation of Lgl preserves the apical-basal organization of proliferative epithelia.
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Affiliation(s)
- Sofia Moreira
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Mariana Osswald
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Guilherme Ventura
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Margarida Gonçalves
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Claudio E Sunkel
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Eurico Morais-de-Sá
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal.
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7
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Duarte Ferreira R, Ornelas C, Silva S, Morgado R, Pereira D, Escaleira D, Moreira S, Valença J, Pedro E, Branco Ferreira M, Conceição Pereira Santos M, Barbosa M. Contribution of In Vivo and In Vitro Testing for The Diagnosis of Local Allergic Rhinitis. J Investig Allergol Clin Immunol 2019; 29:46-48. [PMID: 30785099 DOI: 10.18176/jiaci.0321] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- R Duarte Ferreira
- Serviço de Imunoalergologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal.,Laboratório de Imunologia Clínica, Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - C Ornelas
- Serviço de Imunoalergologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal
| | - S Silva
- Serviço de Imunoalergologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal.,Laboratório de Imunologia Clínica, Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - R Morgado
- Laboratório de Fisiopatologia Respiratória, Serviço de Pneumologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal
| | - D Pereira
- Laboratório de Fisiopatologia Respiratória, Serviço de Pneumologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal
| | - D Escaleira
- Laboratório de Fisiopatologia Respiratória, Serviço de Pneumologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal
| | - S Moreira
- Laboratório de Fisiopatologia Respiratória, Serviço de Pneumologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal
| | - J Valença
- Laboratório de Fisiopatologia Respiratória, Serviço de Pneumologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal
| | - E Pedro
- Serviço de Imunoalergologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal
| | - M Branco Ferreira
- Serviço de Imunoalergologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal.,Clínica Universitária de Imunoalergologia, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - M Conceição Pereira Santos
- Laboratório de Imunologia Clínica, Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.,Clínica Universitária de Imunoalergologia, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - M Barbosa
- Serviço de Imunoalergologia, Centro Hospitalar de Lisboa Norte, Lisbon, Portugal.,Clínica Universitária de Imunoalergologia, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
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8
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Morberg D, Alzate López Y, Moreira S, Prata N, Riley L, Burroughs Peña M. The rheumatic heart disease healthcare paradox: disease persistence in slums despite universal healthcare coverage—a provider perspective qualitative study. Public Health 2019; 171:15-23. [DOI: 10.1016/j.puhe.2019.03.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 03/16/2019] [Accepted: 03/20/2019] [Indexed: 01/19/2023]
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9
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Moreira S, Saraiva FA, Cerqueira RJ, Melo R, Lourenco AP, Amorim MJ, Almeida J, Pinho P, Leite-Moreira AF. P3520Low vs. high-gradient severe aortic stenosis: clinical results and ventricular remodeling. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Moreira
- Faculty of Medicine University of Porto, Surgery and Physiology, Porto, Portugal
| | - F A Saraiva
- Faculty of Medicine University of Porto, Surgery and Physiology, Porto, Portugal
| | - R J Cerqueira
- Sao Joao Hospital, Cardiothoracic Surgery, Porto, Portugal
| | - R Melo
- Faculty of Medicine University of Porto, Surgery and Physiology, Porto, Portugal
| | - A P Lourenco
- Faculty of Medicine University of Porto, Surgery and Physiology, Porto, Portugal
| | - M J Amorim
- Sao Joao Hospital, Cardiothoracic Surgery, Porto, Portugal
| | - J Almeida
- Sao Joao Hospital, Cardiothoracic Surgery, Porto, Portugal
| | - P Pinho
- Sao Joao Hospital, Cardiothoracic Surgery, Porto, Portugal
| | - A F Leite-Moreira
- Faculty of Medicine University of Porto, Surgery and Physiology, Porto, Portugal
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10
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Kumaran V, Li J, Pollack C, Moreira S. A227 ASSESSING THE BIOEQUIVALENCE OF NON-PRESCRIPTION ESOMEPRAZOLE 20 MG BANDED CAPSULES AND MULTIPLE-UNIT PELLET SYSTEM TABLETS UNDER FASTED AND FED CONDITION. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- V Kumaran
- Pfizer Consumer Healthcare, Madison, NJ
| | - J Li
- Pfizer Consumer Healthcare, Madison, NJ
| | - C Pollack
- Pfizer Consumer Healthcare, Madison, NJ
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11
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Pereira C, Moreira S, Barros A, Fernandes D, Valença J, Pinto P, Barbara C. Can we truly change from polysomnography to polygraphy in obstructive sleep apnea? A comparison between these to levels of sleep studies in a population of patients with obstructive sleep apnea. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.757] [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: 10/18/2022]
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12
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Winck JC, Moreira S, Bugalho A, Drummond M, Ferreira AJ, Guimarães M, Reis-Ferreira JM. What exactly Portuguese respiratory professionals aim for their scientific Society: Findings from the VOICE online survey. Rev Port Pneumol (2006) 2017; 23:225-226. [PMID: 28392156 DOI: 10.1016/j.rppnen.2017.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/13/2017] [Accepted: 02/15/2017] [Indexed: 10/19/2022] Open
Affiliation(s)
- J C Winck
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal.
| | - S Moreira
- Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - A Bugalho
- Faculdade Ciências Médicas, Universidade Nova de Lisboa, Lisboa, Portugal
| | - M Drummond
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - A J Ferreira
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - M Guimarães
- Centro Hospitalar de Vila Nova de Gaia, Vila Nova de Gaia, Portugal
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Moreira S, Wood L, Marini-Bettolo C, Guglieri M, McMacken G, Bailey G, Mayhew A, Muni R, Eglon G, Smith D, Williams M, Lochmüller H, Evangelista T. Respiratory involvement in Facioscapulohumeral Dystrophy. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30244-4] [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: 10/19/2022]
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14
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Winck JC, Bugalho A, Drummond M, Ferreira AJ, Moreira S. Portuguese Pulmonology footprint in Europe: From abstracts to papers and grants. Rev Port Pneumol (2006) 2016; 22:360-362. [PMID: 26897096 DOI: 10.1016/j.rppnen.2015.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 12/21/2015] [Accepted: 12/22/2015] [Indexed: 06/05/2023] Open
Affiliation(s)
- J C Winck
- Faculdade de Medicina da Universidade do Porto, Portugal.
| | - A Bugalho
- Faculdade Ciências Médicas da Universidade Nova de Lisboa, Portugal
| | - M Drummond
- Faculdade de Medicina da Universidade do Porto, Portugal
| | - A J Ferreira
- Faculdade de Medicina da Universidade de Coimbra, Portugal
| | - S Moreira
- Faculdade de Medicina da Universidade de Lisboa, Portugal
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Cordeiro Sousa D, Moreira S, Leal I, Dionísio P, Abegão Pinto L, Marques-Neves C. Hypoxia and retinal blood flow changes: a study using OCT-Angiography. Acta Ophthalmol 2016. [DOI: 10.1111/j.1755-3768.2016.0484] [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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16
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Leal I, Cordeiro Sousa D, Moreira S, Dionisio P, Abegao Pinto L, Marques-Neves C. Normobaric hypoxia induces changes in mean ocular perfusion pressure. Acta Ophthalmol 2016. [DOI: 10.1111/j.1755-3768.2016.0496] [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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17
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Abstract
Intracellular asymmetries, often termed cell polarity, determine how cells organize and divide to ultimately control cell fate and shape animal tissues. The tumor suppressor Lethal giant larvae (Lgl) functions at the core of the evolutionarily conserved cell polarity machinery that controls apico-basal polarization. This function relies on its restricted basolateral localization via phosphorylation by aPKC. Here, we summarize the spatial and temporal control of Lgl during the cell cycle, highlighting two ideas that emerged from our recent findings: 1) Aurora A directly phosphorylates Lgl during symmetric division to couple reorganization of epithelial polarity with the cell cycle; 2) Phosphorylation of Lgl within three conserved serines controls its localization and function in a site-specific manner. Considering the importance of phosphorylation to regulate the concentration of Lgl at the plasma membrane, we will further discuss how it may work as an on-off switch for the interaction with cortical binding partners, with implications on epithelial polarization and spindle orientation.
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Affiliation(s)
- Sofia Moreira
- a IBMC, Instituto de Biologia Molecular e Celular, Universidade do Porto , Porto , Portugal.,b I3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto , Porto , Portugal
| | - Eurico Morais-de-Sá
- a IBMC, Instituto de Biologia Molecular e Celular, Universidade do Porto , Porto , Portugal.,b I3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto , Porto , Portugal
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18
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Guerreiro IM, Branco M, Moreira S, Valença J. Impact of bariatric surgery in obstructive sleep apnea in obese patients. Rev Port Pneumol (2006) 2016; 23:298-299. [PMID: 27050438 DOI: 10.1016/j.rppnen.2016.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/10/2016] [Accepted: 01/30/2016] [Indexed: 11/25/2022] Open
Affiliation(s)
- I M Guerreiro
- Faculdade de Medicina da Universidade de Lisboa (FML), Portugal.
| | - M Branco
- Faculdade de Medicina da Universidade de Lisboa (FML), Portugal
| | - S Moreira
- Serviço de Pneumologia do Hospital de Santa Maria (HSM), Centro Hospitalar Lisboa Norte (CHLN)/Faculdade de Medicina da Universidade de Lisboa, Portugal
| | - J Valença
- Serviço de Pneumologia do Hospital de Santa Maria (HSM), Centro Hospitalar Lisboa Norte (CHLN)/Faculdade de Medicina da Universidade de Lisboa, Portugal
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19
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Ferreira J, Ferrer C, Cândido S, Moreira S, Jorge A, Carvalho M, Branco J, Glória F, Oliveira C. CP-186 Can the antiretroviral therapy effectiveness be connected with treatment simplification? Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Moreira S, Jorge A, Oliveira C, Glória F, Ferreira J, Branco J, Carvalho M, Cândido S, Ferrer C. PP-035 The outcome of microbiological monitoring in cytotoxic drug preparation. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Manoranjan B, Venugopal C, Mahendram S, Moreira S, Hallett R, Vijayakumar T, Bakhshinyan D, McFarlane N, Hassell J, Doble B, Singh S. MB-15 * ACTIVATED Wnt SIGNALING TARGETS Sox2+ TREATMENT-REFRACTORY Shh-DEPENDENT MEDULLOBLASTOMA STEM CELLS. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov061.91] [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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22
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Moreira S, Serfaty A, Pedrero C, Bréart G. Construction du taux de mortinatalité : qualité des données, circuit de recueil et place des acteurs. L’exemple de la Seine-Saint-Denis, 2011/2013 (Projet NéMoSI). Rev Epidemiol Sante Publique 2015. [DOI: 10.1016/j.respe.2015.01.056] [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] Open
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23
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Carvalho CA, Moreira S, Ventura G, Sunkel CE, Morais-de-Sá E. Aurora A triggers Lgl cortical release during symmetric division to control planar spindle orientation. Curr Biol 2014; 25:53-60. [PMID: 25484294 DOI: 10.1016/j.cub.2014.10.053] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/23/2014] [Accepted: 10/21/2014] [Indexed: 11/30/2022]
Abstract
Mitotic spindle orientation is essential to control cell-fate specification and epithelial architecture. The tumor suppressor Lgl localizes to the basolateral cortex of epithelial cells, where it acts together with Dlg and Scrib to organize apicobasal polarity. Dlg and Scrib also control planar spindle orientation, but how the organization of polarity complexes is adjusted to control symmetric division is largely unknown. Here, we show that the Dlg complex is remodeled during Drosophila follicular epithelium cell division, when Lgl is released to the cytoplasm. Lgl redistribution during epithelial mitosis is reminiscent of asymmetric cell division, where it is proposed that Aurora A promotes aPKC activation to control the localization of Lgl and cell-fate determinants. We show that Aurora A controls Lgl localization directly, triggering its cortical release at early prophase in both epithelial and S2 cells. This relies on double phosphorylation within the putative aPKC phosphorylation site, which is required and sufficient for Lgl cortical release during mitosis and can be achieved by a combination of aPKC and Aurora A activities. Cortical retention of Lgl disrupts planar spindle orientation, but only when Lgl mutants that can bind Dlg are expressed. Hence, our work reveals that Lgl mitotic cortical release is not specifically linked to the asymmetric segregation of fate determinants, and we propose that Aurora A activation breaks the Dlg/Lgl interaction to allow planar spindle orientation during symmetric division via the Pins (LGN)/Dlg pathway.
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Affiliation(s)
- Cátia A Carvalho
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal
| | - Sofia Moreira
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal
| | - Guilherme Ventura
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal
| | - Cláudio E Sunkel
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal; Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Eurico Morais-de-Sá
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal.
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Coutinho I, Moreira S, Ramos L, Robalo Cordeiro M, Cardoso J, Gonçalo M, Tellechea O. Plaque-like papular xanthoma: a new variant of non-Langerhans cell disease. J Eur Acad Dermatol Venereol 2014; 30:332-3. [DOI: 10.1111/jdv.12725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- I. Coutinho
- Department of Dermatology; Coimbra University Hospital; Coimbra Portugal
| | - S. Moreira
- Department of Internal Medicine; Coimbra University Hospital; Coimbra Portugal
| | - L. Ramos
- Department of Dermatology; Coimbra University Hospital; Coimbra Portugal
| | - M. Robalo Cordeiro
- Department of Dermatology; Coimbra University Hospital; Coimbra Portugal
| | - J. Cardoso
- Department of Dermatology; Coimbra University Hospital; Coimbra Portugal
| | - M. Gonçalo
- Department of Dermatology; Coimbra University Hospital; Coimbra Portugal
| | - O. Tellechea
- Department of Dermatology; Coimbra University Hospital; Coimbra Portugal
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Petrova M, Cunha J, Moreira S, Pereira de Moura J, Carvalho A. P394: Secondary adrenal insufficiency presenting as severe hyponatraemia. A case report. Eur Geriatr Med 2014. [DOI: 10.1016/s1878-7649(14)70558-3] [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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Souza L, Canteras F, Moreira S. Analyses of heavy metals in sewage and sludge from treatment plants in the cities of Campinas and Jaguariúna, using synchrotron radiation total reflection X-rayfluorescence. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2013.01.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Moreira S, Rodrigues R, Pejanovic N, Rodrigues J, Barbara C, Ferreira Moita L. The expression of the Per2 clock gene is up-regulated in non-treated osas patients and normalizes its mRNA levels upon positive pressure treatment. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.025] [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: 11/24/2022]
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Moreira S, Braga T, Carvalho H, Campilho A. The Arabidopsis HP6 gene is expressed in Medicago truncatula lateral roots and root nodule primordia. Plant Signal Behav 2013; 8:25262. [PMID: 23759550 PMCID: PMC3999059 DOI: 10.4161/psb.25262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 04/18/2013] [Revised: 06/03/2013] [Accepted: 06/03/2013] [Indexed: 06/02/2023]
Abstract
Expression patterns of orthologous genes can be similar between distantly related species, suggesting that developmental programs can be conserved between organisms. Here, we show that the promoter of AHP6, a gene which is involved in Arabidopsis lateral root development, also drives the expression of the reporter GUS gene in lateral roots of Medicago truncatula suggesting that similar regulatory elements are involved in lateral root organogenesis in these species. Interestingly, the AHP6 promoter was able to drive GUS expression in root nodules and nodule primordia, structures that are absent in Arabidopsis. We found two AHP6 orthologous genes in the M. truncatula genome and we speculate that these putative cytokinin inhibitors may play a role during lateral root and nodule development in this species.
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Moreira S, Bishopp A, Carvalho H, Campilho A. AHP6 inhibits cytokinin signaling to regulate the orientation of pericycle cell division during lateral root initiation. PLoS One 2013; 8:e56370. [PMID: 23457561 PMCID: PMC3572949 DOI: 10.1371/journal.pone.0056370] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 01/13/2013] [Indexed: 01/18/2023] Open
Abstract
In Arabidopsis thaliana, lateral roots (LRs) initiate from anticlinal cell divisions of pericycle founder cells. The formation of LR primordia is regulated antagonistically by the phytohormones cytokinin and auxin. It has previously been shown that cytokinin has an inhibitory effect on the patterning events occurring during LR formation. However, the molecular players involved in cytokinin repression are still unknown. In a similar manner to protoxylem formation in Arabidopsis roots, in which AHP6 (ARABIDOPSIS HISTIDINE PHOSPHOTRANSFER PROTEIN 6) acts as a cytokinin inhibitor, we reveal that AHP6 also functions as a cytokinin repressor during early stages of LR development. We show that AHP6 is expressed at different developmental stages during LR formation and is required for the correct orientation of cell divisions at the onset of LR development. Moreover, we demonstrate that AHP6 influences the localization of the auxin efflux carrier PIN1, which is necessary for patterning the LR primordia. In summary, we show that the inhibition of cytokinin signaling through AHP6 is required to establish the correct pattern during LR initiation.
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Affiliation(s)
- Sofia Moreira
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Anthony Bishopp
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Helena Carvalho
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Ana Campilho
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
- * E-mail:
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Abstract
This study aimed to examine the acute effects of cryotherapy on knee position sense and to determine the time period necessary to normalize joint position sense when exercising after cryotherapy. 12 subjects visited the laboratory twice, once for cryotherapy followed by 30 min of exercise on a cycloergometer and once for cryotherapy followed by 30 min of rest. Sessions were randomly determined and separated by 48 h. Cryotherapy was applied in the form of ice bag, filled with 1 kg of crushed ice, for 20 min. Knee position sense was measured at baseline, after cryotherapy and every 5 min after cryotherapy removal until a total of 30 min. The main effect of cryotherapy was significant showing an increase in absolute (F7,154=43.76, p<0.001) and relative (F7,154=7.97, p<0.001) errors after cryotherapy. The intervention after cryotherapy (rest vs. exercise) revealed a significant main effect only for absolute error (F7,154=4.05, p<0.001), i.e., when subjects exercised after cryotherapy, the proprioceptive acuity reached the baseline values faster (10 min vs. 15 min). Our results indicated that the deleterious effect of cryotherapy on proprioception is mitigated by low intensity exercise, being the time necessary to normalize knee position sense reduced from 15 to 10 min.
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Affiliation(s)
- F Ribeiro
- CESPU, Polytechnic Health Institute of the North, Physiotherapy Department, Gandra PRD, Portugal.
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Ribeiro C, Moreira S, Correia V, Sencadas V, Rocha J, Gama FM, Gómez Ribelles JL, Lanceros-Méndez S. Enhanced proliferation of pre-osteoblastic cells by dynamic piezoelectric stimulation. RSC Adv 2012. [DOI: 10.1039/c2ra21841k] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Santos MSV, Vieira SS, Tavares FB, Andrade A, Manno MC, Costa HS, Moreira S. Desempenho, carcaça e cortes de frangos caipira francês barré (gris barré cou plumé). ARCH ZOOTEC 2011. [DOI: 10.21071/az.v61i234.2802] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objetivou-se analisar os efeitos dos níveis de energia metabolizável e da idade de abate sobre o desempenho zootécnico, rendimento de carcaça e cortes de frangos da linhagem Caipira Francês Barré. O experimento foi conduzido em galpão experimental localizado em Parauapebas, PA. Foram utilizados 192 pintos, mistos, de 1 dia, criados em sistema intensivo. O delineamento experimental utilizado foi inteiramente casualizado, com 3 tratamentos. Cada tratamento foi formado de 4 repetições, sendo a unidade experimental 1 box de 16 aves. Os tratamentos foram definidos de acordo com os níveis de energia metabolizável das rações inicial (1 a 28 dias) e final (29 a 90 dias), respectivamente: T1 - 3000 e 3100 kcal de EM/kg; T2 - 3100 e 3200 kcal de EM/kg; T3 - 3200 e 3300 kcal de EM/kg. As variáveis estudadas foram peso inicial, peso final, consumo de ração e conversão alimentar, proteína bruta consumida, proteína metabolizada consumida, eficiência energética e eficiência protéica. As características de carcaças das aves, analisadas com 77, 84 e 91 dias de idade, foram o rendimento de carcaça, peito, coxas, sobrecoxas, asa, dorso, asas, pés, cabeça e pescoço. A análise estatística dos dados foi realizada utilizando o procedimento ANOVA, para um modelo inteiramente casualizado, com o programa Sistema para análise estatística e genética (SAEG, 2007). As diferenças entre as médias das variáveis estudadas foram realizadas pelo Teste de Tukey a um nível de 5%. Os níveis de energia nas dietas não interferiram no desempenho zootécnico e no rendimento de carcaça, peito, coxas, sobrecoxas, asas, pés e cabeça + pescoço das aves. O nível de 3200 kcal de EM/kg proporcionou melhor rendimento de dorso. A proteína bruta e a energia metabolizada consumida pelas aves melhoraram com o incremento energético da ração, durante a fase de engorda. A idade de abate não influenciou no rendimento de carcaça, entretanto as aves abatidas aos 90 dias de idade apresentaram maior rendimento de peito.
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Neuparth T, Moreira S, Santos MM, Reis-Henriques MA. Hazardous and Noxious Substances (HNS) in the marine environment: prioritizing HNS that pose major risk in a European context. Mar Pollut Bull 2011; 62:21-28. [PMID: 20933247 DOI: 10.1016/j.marpolbul.2010.09.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2010] [Revised: 09/07/2010] [Accepted: 09/09/2010] [Indexed: 05/30/2023]
Abstract
Increases in the maritime transportation of Hazardous and Noxious Substances (HNS), alongside the need for an effective response to HNS spills have led environmental managers and the scientific community to focus attention on HNS spill preparedness and responsiveness. In the context of the ARCOPOL project, a weight-of-evidence approach was developed aimed at prioritizing HNS that pose major environmental risks to European waters. This approach takes into consideration the occurrence probability of HNS spills in European Atlantic waters and the severity of exposure associated with their physico-chemical properties and toxicity to marine organisms. Additionally, a screening analysis of the toxicological information available for the prioritization of HNS was performed. Here we discuss the need for a prioritization methodology to select HNS that are likely to cause severe marine environmental effects as an essential step towards the establishment of a more effective preparedness and response to HNS incidents.
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Affiliation(s)
- T Neuparth
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal.
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Moreira S, Branco M, Regalado A. 499 FIBROMYALGIA AND DEPRESSION: WHAT RELATION? A CLINICAL CASE REPORT. Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60502-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- S. Moreira
- Centro Hospitalar do Porto — Hospital Santo António, Porto, Portugal
| | - M. Branco
- Centro Hospitalar do Porto — Hospital Santo António, Porto, Portugal
| | - A. Regalado
- Centro Hospitalar do Porto — Hospital Santo António, Porto, Portugal
- Chronic Pain Unit, Porto, Portugal
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Aguiar M, Valença J, Felizardo M, Caeiro F, Moreira S, Staats R, Bugalho de Almeida AA. Obstructive sleep apnoea syndrome as a cause of road traffic accidents. Rev Port Pneumol 2009; 15:419-431. [PMID: 19401792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
UNLABELLED Several studies have demonstrated that obstructive sleep apnoea syndrome (OSAS) patients have a higher rate of road traffic accidents. Our study aimed to analyse any differences in OSAS patients between those who reported having had road traffic accidents and/or near misses and those who did not. METHODS We studied 163 patients with OSAS (apnoea- hypopnoea index (AHI)>10/h) diagnosed using nocturnal polysomnography (NPSG), all drivers, 18.4% of whom drove for a living. Patients were asked at their first clinical interview to self-report road traffic accidents and/or near misses over the past 3 years which had been caused by abnormal daytime drowsiness. This allowed patients to be divided into two groups, those who had had road traffic accidents and/or near misses and those who had not. Both were compared as to age, body mass index (BMI), Epworth Sleepiness Scale (ESS), daytime PaO2 and PaCO2, Functional Outcomes of Sleep Questionnaire (FOSQ) test and NPSG data. This latter was total sleep time (TTS), sleep efficiency, sleep stages, arousal index (ARI), AHI, minimal and average SaO2, % of time with SaO2 < 90% (T90), desaturation index (ODI), total duration of apnoea-hypopnoea (TDAH) (T test). RESULTS Group I (no road traffic accidents) No=89 patients; group II (road traffic accidents) No=74 patients. Age (years) was 57.6+/-11.8 vs. 54.7+/-10.9 (ns); male gender, 75% vs. 78.4%; ESS, 12.3+/-5.4 vs. 17.6+/-4.3 (p<0.001); BMI, (Kg/m2) 36.2+/-8.1 vs. 35.6+/-6.3 (ns); PaO2 (mmHg), 76.1+/-11.4 vs. 78.5+/-12.6 (ns); PaCO2 (mmHg), 42.6+/-5.1 vs. 42.2+/-4.7 (ns); FOSQ, 15.1+/-3.1 vs. 12.9+/-3.4 (p<0.001). NPSG data revealed differences only in AHI: 45.0+/-21.6 vs. 56.2+/-29.7 (p=0.01) and in TDAH (minutes), 98.5+/-63.7 vs. 133.3+/-83.2 (p=0,005). CONCLUSIONS In our experience patients who had road traffic accidents and/or near misses had a more severe OSAS, with higher AHI, excessive daytime sleepiness and lower quality of life.
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Affiliation(s)
- M Aguiar
- Pulmonology Unit I, Hospital de Santa Maria, CHLN, EPE, Lisboa.
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Vives AES, Moreira S, Brienza SMB, Zucchi OLAD, Nascimento Filho VF. Analysis of fish samples for environmental monitoring and food safety assessment by synchrotron radiation total reflection X-ray fluorescence. J Radioanal Nucl Chem 2006. [DOI: 10.1007/s10967-006-0333-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [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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Moreira S, Vives AES, Zucchi OLAD, de Jesus EFO, Nascimento Filho VF, Brienza SMB. Analysis of beers from Brazil with synchrotron radiation total reflection X-ray fluorescence. J Radioanal Nucl Chem 2006. [DOI: 10.1007/s10967-006-0325-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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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Vives AES, Moreira S, Brienza SMB, Zucchi OLA, Nascimento Filho VF. Synchrotron radiation total reflection X-ray fluorescence (SR-TXRF) for evaluation of food contamination. J Radioanal Nucl Chem 2006. [DOI: 10.1007/s10967-006-0322-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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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Costa CHN, Werneck GL, Rodrigues L, Santos MV, Araújo IB, Moura LS, Moreira S, Gomes RBB, Lima SS. Household structure and urban services: neglected targets in the control of visceral leishmaniasis. Ann Trop Med Parasitol 2005; 99:229-36. [PMID: 15829132 DOI: 10.1179/136485905x28018] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Visceral leishmaniasis (VL) caused by Leishmania chagasi is a growing public-health problem in many parts of the New World. Although several studies have focused on the consequences of environmental damage, human migration and land occupation on the incidence of VL, the effects on the disease of the substandard living conditions that often result from the process of urbanization have not been investigated in detail. The present study was based in the Brazilian city of Teresina, where, since 1980, there have been two large outbreaks of VL (one in 1981-1985 and the other in 1993-1996), each involving at least 1000 newly reported cases. The role of household structure and the provision of urban services in the city, as predictors of the occurrence of VL, was studied in a case-control investigation. After controlling for age, crowding, and the background incidence of VL in the area where the subjects lived, the risk of acquiring the disease was found to be significantly higher for those who lived in houses with an inadequate sewage system and those who had no regular rubbish collection. Improving household structure and providing basic urban services might be effective strategies for controlling the spread of VL in urban areas.
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Affiliation(s)
- C H N Costa
- Instituto de Doenças Tropicais Nathan Portella and Universidade Federal do Piauí, Rua Governador Raimundo Artur de Vasconcelos, 151, CEP 64001-450, Teresina, PI, Brazil
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Machado PGP, Felipe CR, Park SI, Garcia R, Moreira S, Casarini D, Franco M, Alfieri F, Tedesco-Silva H, Medina-Pestana JO. Preservation of graft function in low-risk living kidney transplant recipients treated with a combination of sirolimus and cyclosporine. Braz J Med Biol Res 2004; 37:1303-12. [PMID: 15334195 DOI: 10.1590/s0100-879x2004000900004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The use of sirolimus (SRL) in combination with full doses of cyclosporin A (CsA) results in reduced one-year kidney allograft function, which is associated with shorter long-term allograft survival. We determined the effect of reduced CsA exposure on graft function in patients receiving SRL and prednisone. Ninety recipients of living kidney transplants receiving SRL (2 mg/day, po) were compared to 35 recipients receiving azathioprine (AZA, 2 mg kg-1 day-1, po). All patients also received CsA (8-10 mg kg-1 day-1, po) and prednisone (0.5 mg kg-1 day-1). Efficacy end-point was a composite of biopsy-confirmed acute rejection, graft loss, or death at one year. Graft function was measured by creatinine, creatinine clearance, and graft function deterioration between 3 and 12 months (delta1/Cr). CsA concentrations in patients receiving SRL were 26% lower. No differences in one-year composite efficacy end-point were observed comparing SRL and AZA groups (18 vs 20%) or in the incidence of biopsy-proven acute rejection (14.4 and 14.3%). There were no differences in mean +/- SD creatinine (1.65 +/- 0.46 vs 1.60 +/- 0.43 mg/dl, P = 0.48) or calculated creatinine clearances (61 +/- 15 vs 62 +/- 13 ml/min, P = 0.58) at one year. Mean +/- SD delta1/Cr (-11 +/- 17 vs -14 +/- 15%, P = 0.7) or the percentage of patients with >20% (26 vs 31%, P = 0.6) or >30% delta1/Cr (19 vs 17%, P = 1) did not differ between the two groups. The use of 2-mg fixed oral doses of SRL and reduced CsA exposure was effective in preventing acute rejection and preserving allograft function.
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Affiliation(s)
- P G P Machado
- Divisão de Nefrologia, Hospital do Rim e Hipertensão, Universidade Federal de São Paulo, Brasil
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Moreira S, Lopes A, Cadarso F, Coutinho A, Leitão C, Dias F. C1. Pneumonia adquirida na comunidade (PAC) num hospital central – comparação de um grupo de doentes idosos com um grupo de não idosos. Revista Portuguesa de Pneumologia 2003. [DOI: 10.1016/s0873-2159(15)30705-4] [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: 11/15/2022] Open
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Oliveira A, Moreira S, Mota P, Duarte G, Pestana E, Dias F. C4. Pneumonia adquirida na comunidade (PAC): estudo retrospectivo num hospital central. Revista Portuguesa de Pneumologia 2003. [DOI: 10.1016/s0873-2159(15)30708-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: 11/30/2022] Open
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Salvador MJ, Dias DA, Moreira S, Zucchi OLAD. Analysis of Medicinal Plants and Crude Extracts by Synchrotron Radiation Total Reflection X-Ray Fluorescence. ACTA ACUST UNITED AC 2003. [DOI: 10.1081/tma-120020272] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Cunha SS, Rodrigues LC, Moreira S, Carvalho LC, Barreto ML, Dourado I. Upward trend in the rate of detection of new cases of leprosy in the State of Bahia, Brazil. Int J Lepr Other Mycobact Dis 2001; 69:308-17. [PMID: 12035292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
BACKGROUND The worldwide fall in the rate of detection of new cases of leprosy has been partly attributed to the introduction of multidrug therapy and other improvements in control programs. However, the rate of detection of new cases has not decreased in Brazil. METHODS An analysis was made of the temporal distribution of 18,872 newly reported leprosy cases in Bahia, Brazil, from 1974 to 1997. Population denominators for the annual detection rate were obtained from population estimates based on the national census. Trends were presented by sex, date of birth, date of diagnosis, date of release, clinical form and by residence in areas which had notified cases in the 5 years prior to the rise in detection rate. RESULTS There was a marked increase in the new case detection rate (NCDR) in the State of Bahia, from 0.19 to 1.43 cases per 10,000 inhabitants during the study period, an increment of nearly 7% to 8% per year. This increase was also observed in people aged 14 years and younger. During this period tuberculoid and indeterminate forms have become predominant among women and younger people. The average age of male cases has shifted toward younger ages. CONCLUSIONS We interpret this pattern to mean that the increase in NCDR reflects a real increase in incidence of leprosy, whether or not accompanied by improved detection.
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Affiliation(s)
- S S Cunha
- Institute de Saúde Coletiva, Universidade Federal da Bahia, Bahia, Brazil.
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Felipe CR, Garcia C, Moreira S, Olsen N, Silva HT, Pestana OM. Choosing the right dose of new immunossuppressive drugs for new populations: importance of pharmacokinetic studies. Transplant Proc 2001; 33:1095-6. [PMID: 11267207 DOI: 10.1016/s0041-1345(00)02432-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- C R Felipe
- Hospital do Rim e Hipertensão, Universidade Federal de São Paulo, São Paulo, Brazil
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Mifsud A, Sim CK, Boettger-Tong H, Moreira S, Lamb DJ, Lipshultz LI, Yong EL. Trinucleotide (CAG) repeat polymorphisms in the androgen receptor gene: molecular markers of risk for male infertility. Fertil Steril 2001; 75:275-81. [PMID: 11172827 DOI: 10.1016/s0015-0282(00)01693-9] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To determine whether changes in the polymorphic trinucleotide (CAG) tract of the androgen receptor gene are associated with spermatogenic defects in patients with male infertility. DESIGN Case-control study of two ethnic groups. SETTING University referral centers for male infertility at Baylor College of Medicine, Houston, Texas, and National University Hospital, Singapore. PARTICIPANT(S) Two hundred and fifteen patients with male infertility and depressed spermatogenesis and 142 fertile controls. MAIN OUTCOME MEASURE(S) Size of androgen receptor CAG alleles according to fluorescent-labeled polymerase chain reaction and automated analysis using Genescan software (PE Biosystems Asia, Singapore), and statistical examination of its relation to clinical variables. RESULT(S) In U.S. patients, the mean androgen receptor CAG length was significantly longer in infertile patients than in fertile controls (21.95 +/- 0.31 vs. 20.72 +/- 0.52). Logistic regression showed that each unit increase in CAG length was associated with a 20% increase in the odds of being azoospermic. The odds ratio for azoospermia was sevenfold higher for patients with > or =26 CAG repeats than in those with <26 CAG repeats. Although mean CAG length in Singapore patients was longer than in the U.S. samples, long androgen receptor CAG alleles were significantly related to male infertility in both populations. CONCLUSION(S) Long (> or =26) androgen receptor CAG alleles, which are found in up to 25% of azoospermic men, are associated with male infertility and defective spermatogenesis. Conception in these men is possible with assisted reproductive technologies, as many have spermatozoa in their testes.
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Affiliation(s)
- A Mifsud
- Department of Obstetrics and Gynecology, National University Hospital of Singapore, Level 2, Lower Kent Ridge Road, Republic of Singapore
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Gaudin Y, Moreira S, B N Jean J, Blondel D, Flamand A, Tuffereau C. Soluble ectodomain of rabies virus glycoprotein expressed in eukaryotic cells folds in a monomeric conformation that is antigenically distinct from the native state of the complete, membrane-anchored glycoprotein. J Gen Virol 1999; 80 ( Pt 7):1647-1656. [PMID: 10423132 DOI: 10.1099/0022-1317-80-7-1647] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Rabies virus glycoprotein (G) is a trimeric type I transmembrane glycoprotein that mediates both virus receptor recognition and low pH-induced membrane fusion. G can assume three different states: the 'native' state (N) detected at the virus surface, which is responsible for receptor binding, the activated hydrophobic state (A), which interacts with the target membrane as a first step in the fusion process, and the fusion-inactive conformation (I). These three states, which are structurally different, are in a pH-dependent equilibrium. This equilibrium is shifted toward the I state at low pH. This paper includes an investigation of the structure of the ectodomain of the PV strain of rabies virus when it is synthesized as a soluble form (G1-439) lacking the transmembrane and intracytoplasmic domains (residues 440-505). It is shown that, whatever the extracellular pH, G1-439 is secreted as a monomer that has the antigenic characteristics of the I state. This I-like state is not acquired in the acidic compartments of the Golgi but directly in the endoplasmic reticulum. Finally, membrane anchorage by the G transmembrane domain (G1-461) is sufficient for the G ectodomain to be folded into the native N form. These results emphasize the role of the G transmembrane domain in the correct folding of the ectodomain.
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Lopes-Martins RA, Araújo CV, Estato V, Moreira S, Cordeiro RS, Tibiriçá EV. Platelet-activating factor. A possible role in the modulation of the vasomotor tone and blood pressure. Adv Exp Med Biol 1996; 416:223-30. [PMID: 9131152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- R A Lopes-Martins
- Departamento de Fisiologia e Farmacodinâmica, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brasil
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Castro-Faria-Neto HC, Araújo CV, Moreira S, Bozza PT, Thomas G, Barbosa-Filho JM, Cordeiro RS, Tibiriçá EV. Yangambin: a new naturally-occurring platelet-activating factor receptor antagonist: in vivo pharmacological studies. Planta Med 1995; 61:106-112. [PMID: 7753914 DOI: 10.1055/s-2006-958026] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The pharmacological profile of a novel specific platelet-activating factor (PAF) receptor antagonist-yangambin-isolated from the Brazilian plant Ocotea duckei Vattimo (Lauraceae), was investigated in the pentobarbitone-anaesthetized rabbit. The i.v. administration of PAF (0.03-3.0 microgram kg-1) induced marked but reversible hypotensive effects and mild reductions in the heart rate. Both effects are independent of the respiratory conditions imposed on the animals. Moreover, PAF (3.0 microgram kg-1, i.v.) induced a reversible decrease of the circulating levels of platelets and of polymorphonuclear leukocytes. Pretreatment with yangambin (10 and 20 mg kg-1, i.v.) dose-dependently attenuated PAF-induced cardiovascular changes and thrombocytopaenia. Nevertheless, the neutropenic leukopaenia elicited by PAF (3.0 microgram kg-1, i.v.) was not prevented by yangambin whereas the reference PAF antagonists WEB 2086 (2 mg kg-1, i.v.) and SR 27417 (1 mg kg-1, i.v.) significantly inhibited the phenomenon. The hypotensive effects of acetylcholine, histamine, and 5-hydroxytryptamine were not affected by prior administration of yangambin. It is concluded that yangambin is a selective antagonist of the cardiovascular effects of PAF which could be useful in pathological states characterized by abnormal PAF release, such as anaphylactic and septic shocks. Furthermore, yangambin might discriminate a PAF receptor subtype present in the cardiovascular system and platelets from the one existing in polymorphonuclear leukocytes in the rabbit.
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Affiliation(s)
- H C Castro-Faria-Neto
- Departamento de Fisiologia e Farmacodinâmica, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
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Lessa I, Cortes E, Menezes G, Lima ME, Santos CM, Jesus AM, Souza CS, Moreira S. [The determination of blood pressure in routine medical practice]. AMB Rev Assoc Med Bras 1984; 30:50-2. [PMID: 6332342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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