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Soares R, Lourenço DM, Mota IF, Sebastião AM, Xapelli S, Morais VA. Lineage-specific changes in mitochondrial properties during neural stem cell differentiation. Life Sci Alliance 2024; 7:e202302473. [PMID: 38664022 PMCID: PMC11045976 DOI: 10.26508/lsa.202302473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Neural stem cells (NSCs) reside in discrete regions of the adult mammalian brain where they can differentiate into neurons, astrocytes, and oligodendrocytes. Several studies suggest that mitochondria have a major role in regulating NSC fate. Here, we evaluated mitochondrial properties throughout NSC differentiation and in lineage-specific cells. For this, we used the neurosphere assay model to isolate, expand, and differentiate mouse subventricular zone postnatal NSCs. We found that the levels of proteins involved in mitochondrial fusion (Mitofusin [Mfn] 1 and Mfn 2) increased, whereas proteins involved in fission (dynamin-related protein 1 [DRP1]) decreased along differentiation. Importantly, changes in mitochondrial dynamics correlated with distinct patterns of mitochondrial morphology in each lineage. Particularly, we found that the number of branched and unbranched mitochondria increased during astroglial and neuronal differentiation, whereas the area occupied by mitochondrial structures significantly reduced with oligodendrocyte maturation. In addition, comparing the three lineages, neurons revealed to be the most energetically flexible, whereas astrocytes presented the highest ATP content. Our work identified putative mitochondrial targets to enhance lineage-directed differentiation of mouse subventricular zone-derived NSCs.
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Affiliation(s)
- Rita Soares
- Instituto de Medicina Molecular | João Lobo Antunes (iMM|JLA), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Diogo M Lourenço
- Instituto de Medicina Molecular | João Lobo Antunes (iMM|JLA), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Isa F Mota
- Instituto de Medicina Molecular | João Lobo Antunes (iMM|JLA), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Ana M Sebastião
- Instituto de Medicina Molecular | João Lobo Antunes (iMM|JLA), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Sara Xapelli
- Instituto de Medicina Molecular | João Lobo Antunes (iMM|JLA), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Vanessa A Morais
- Instituto de Medicina Molecular | João Lobo Antunes (iMM|JLA), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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2
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Rodrigues RS, Moreira JB, Mateus JM, Barateiro A, Paulo SL, Vaz SH, Lourenço DM, Ribeiro FF, Soares R, Loureiro-Campos E, Bielefeld P, Sebastião AM, Fernandes A, Pinto L, Fitzsimons CP, Xapelli S. Cannabinoid type 2 receptor inhibition enhances the antidepressant and proneurogenic effects of physical exercise after chronic stress. Transl Psychiatry 2024; 14:170. [PMID: 38555299 PMCID: PMC10981758 DOI: 10.1038/s41398-024-02877-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 03/05/2024] [Accepted: 03/14/2024] [Indexed: 04/02/2024] Open
Abstract
Chronic stress is a major risk factor for neuropsychiatric conditions such as depression. Adult hippocampal neurogenesis (AHN) has emerged as a promising target to counteract stress-related disorders given the ability of newborn neurons to facilitate endogenous plasticity. Recent data sheds light on the interaction between cannabinoids and neurotrophic factors underlying the regulation of AHN, with important effects on cognitive plasticity and emotional flexibility. Since physical exercise (PE) is known to enhance neurotrophic factor levels, we hypothesised that PE could engage with cannabinoids to influence AHN and that this would result in beneficial effects under stressful conditions. We therefore investigated the actions of modulating cannabinoid type 2 receptors (CB2R), which are devoid of psychotropic effects, in combination with PE in chronically stressed animals. We found that CB2R inhibition, but not CB2R activation, in combination with PE significantly ameliorated stress-evoked emotional changes and cognitive deficits. Importantly, this combined strategy critically shaped stress-induced changes in AHN dynamics, leading to a significant increase in the rates of cell proliferation and differentiation of newborn neurons, overall reduction in neuroinflammation, and increased hippocampal levels of BDNF. Together, these results show that CB2Rs are crucial regulators of the beneficial effects of PE in countering the effects of chronic stress. Our work emphasises the importance of understanding the mechanisms behind the actions of cannabinoids and PE and provides a framework for future therapeutic strategies to treat stress-related disorders that capitalise on lifestyle interventions complemented with endocannabinoid pharmacomodulation.
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Affiliation(s)
- R S Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Université de Bordeaux, INSERM, Neurocentre Magendie, Bordeaux, France
| | - J B Moreira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - J M Mateus
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - A Barateiro
- Central Nervous System, blood and peripheral inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - S L Paulo
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - S H Vaz
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - D M Lourenço
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - F F Ribeiro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - R Soares
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - E Loureiro-Campos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - P Bielefeld
- Swammerdam Institute for Life Sciences, Faculty of Science, University of Amsterdam, Amsterdam, The Netherlands
| | - A M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - A Fernandes
- Central Nervous System, blood and peripheral inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - L Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - C P Fitzsimons
- Swammerdam Institute for Life Sciences, Faculty of Science, University of Amsterdam, Amsterdam, The Netherlands
| | - S Xapelli
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
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Lourenço DM, Soares R, Sá-Santos S, Mateus JM, Rodrigues RS, Moreira JB, Vaz SH, Sebastião AM, Solá S, Xapelli S. Unravelling a novel role for cannabidivarin in the modulation of subventricular zone postnatal neurogenesis. Eur J Pharmacol 2023; 959:176079. [PMID: 37802277 DOI: 10.1016/j.ejphar.2023.176079] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/06/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/08/2023]
Abstract
Postnatal neurogenesis has been shown to rely on the endocannabinoid system. Here we aimed at unravelling the role of Cannabidivarin (CBDV), a non-psychoactive cannabinoid, with high affinity for the non-classical cannabinoid receptor TRPV1, on subventricular zone (SVZ) postnatal neurogenesis. Using the neurosphere assay, SVZ-derived neural stem/progenitor cells (NSPCs) were incubated with CBDV and/or 5'-Iodoresinferotoxin (TRPV1 antagonist), and their role on cell viability, proliferation, and differentiation were dissected. CBDV was able to promote, through a TRPV1-dependent mechanism, cell survival, cell proliferation and neuronal differentiation. Furthermore, pulse-chase experiments revealed that CBDV-induced neuronal differentiation was a result of cell cycle exit of NSPCs. Regarding oligodendrocyte differentiation, CBDV inhibited oligodendrocyte differentiation and maturation. Since our data suggested that the CBDV-induced modulation of NSPCs acted via TRPV1, a sodium-calcium channel, and that intracellular calcium levels are known regulators of NSPCs fate and neuronal maturation, single cell calcium imaging was performed to evaluate the functional response of SVZ-derived cells. We observed that CBDV-responsive cells displayed a two-phase calcium influx profile, being the initial phase dependent on TRPV1 activation. Taken together, this work unveiled a novel and untapped neurogenic potential of CBDV via TRPV1 modulation. These findings pave the way to future neural stem cell biological studies and repair strategies by repurposing this non-psychoactive cannabinoid as a valuable therapeutic target.
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Affiliation(s)
- Diogo M Lourenço
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Rita Soares
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Sónia Sá-Santos
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Joana M Mateus
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Rui S Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - João B Moreira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Sandra H Vaz
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Susana Solá
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Sara Xapelli
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal.
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4
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Soares R, Bueno C, Vieira FM, Muniz-Pereira LC. Gongylonema sp. in the Tongue of a Brown-Nosed Coati (Nasua nasua) from the Brazilian Atlantic Forest. J Wildl Dis 2023; 59:528-531. [PMID: 37170422 DOI: 10.7589/jwd-d-22-00108] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 01/24/2023] [Indexed: 05/13/2023]
Abstract
Two parasites were collected from the epithelial layer of the tongue mucosa of a brown-nosed coati (Nasua nasua) in an area of Atlantic Forest in Minas Gerais State, Brazil. These were identified as female Gongylonema sp. nematodes, not previously reported in Brazilian wild carnivores.
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Affiliation(s)
- Rita Soares
- Laboratório de Helmintos Parasitos de Vertebrados, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro, Rio de Janeiro, Postal Code 21040-900, Brasil
- Programa de Pós-graduação em Biodiversidade e Saúde, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro, Rio de Janeiro, Postal Code 21040-900, Brasil
| | - Cecília Bueno
- Laboratório de Ecologia, Universidade Veiga de Almeida, Rua Ibituruna, 108, Rio de Janeiro, Rio de Janeiro, CEP 20271-901, Brasil
| | - Fabiano M Vieira
- Universidade Federal do Vale do São Francisco, Rodovia BR-407, KM 12 Lote 543 Projeto de Irrigação Nilo Coelho, Petrolina, Postal Code 56300-000, Brazil
| | - Luís C Muniz-Pereira
- Laboratório de Helmintos Parasitos de Vertebrados, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro, Rio de Janeiro, Postal Code 21040-900, Brasil
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5
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Pinheiro S, Klontzas M, Vassalou E, Pimenta M, Soares R, Karantanas A. US-guided Hydrodistension for Adhesive Capsulitis: The Effect of Diabetes on Treatment Outcomes. Semin Musculoskelet Radiol 2022. [DOI: 10.1055/s-0042-1750625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Dias Ferreira Reis JP, Bras P, Ferreira V, Goncalves A, Pereira Da Silva T, Soares R, Timoteo AT, Galrinho A, Branco L, Ferreira R. Evaluation of RV-arterial coupling in advanced heart failure. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
The ratio of echocardiography-derived tricuspid annular plane systolic excursion (TAPSE) and pulmonary arterial systolic pressure (PASP) - TAPSE/PASP ratio - is a noninvasive measure of RV-arterial coupling. TAPSE/PASP ratio is a potent independent predictor of prognosis in heart failure and pulmonary arterial hypertension, with a prognostic cutoff value of 0.36 mm/mmHg.
Objective
To assess the prognostic impact of TAPSE/PASP ratio in a population of advanced HF patients.
Methods
Prospective evaluation of adult patients with advanced HFrEF referred to our Institution for evaluation with HF team and possible indication for urgent heart transplantation (HT) or MCS. Patients were followed up for 2 years for the primary endpoint of cardiac death and HT. Echocardiographically determined TAPSE/PASP ratio was used to assess RV-arterial coupling and a survival analysis was performed to evaluate the prognostic impact of the suggested cutoff of 0.36 mm/mmHg.
Results
A total of 450 Heart Failure with Reduced Ejection Fraction (HFrEF) patients with a mean age of 56 ± 12 years, of which 80% are male, and with a mean LVEF of 29 ± 4%, mean TAPSE of 19 ± 3 mm and PASP of 38 ± 11mmHg. The mean TAPSE/PASP was 0.80 ± 0.28. Fifty-four patients (12%) met the primary endpoint. Patients with RV-arterial uncoupling (TAPSE/PASP < 0.36 mm/mmHg) were more likely to have a non-ischaemic etiology for HF (66.7% vs 40%, p = 0.047), had a lower prevalence of diabetes (53.3% vs 77.9%, p = 0.041), a higher prevalence of moderate-to-severe mitral regurgitation (33.3% vs 13.0%, p = 0.035), a lower LVEF (26.2 ± 6.1 vs 29.9 ± 5.9, p = 0.038), a higher prevalence of RV dysfunction (73.3% vs 26.7%, p < 0.001) and worse cardiopulmonary fitness (pVO2: 12.7 ± 5.1 vs 15.8 ± 6.0 ml/kg/min, p = 0.047; VE/VCO2 slope: 49.5 ± 17.2 vs 37.6 ± 9.7, p < 0.001; cardiorespiratory optimal point: 36.9 ± 11.3 vs 29.0 ± 6.4, p < 0.001). More patients in the group of TAPSE/PASP < 0.36 mm/mmHg met the primary endpoint (33.3% vs 9.6%, p = 0.034) and more patients underwent urgent HT (13.3% vs 1.4%, p = 0.44). RV-arterial coupling was associated with a lower survival free of events during follow-up (log-rank p = 0.010).
Conclusion
RV-arterial coupling predicts a worse prognosis in advanced HF patients, with those below a cutoff of 0.36 mm/mmHg having lower survival. This variable may improve risk stratification in this setting. Abstract Figure.
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Affiliation(s)
| | - P Bras
- Hospital de Santa Marta, Lisbon, Portugal
| | - V Ferreira
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | - AT Timoteo
- Hospital de Santa Marta, Lisbon, Portugal
| | - A Galrinho
- Hospital de Santa Marta, Lisbon, Portugal
| | - L Branco
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Ferreira
- Hospital de Santa Marta, Lisbon, Portugal
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Dias Ferreira Reis JP, Bras P, Goncalves A, Pereira Da Silva T, Soares R, Galrinho A, Timoteo AT, Branco L, Ferreira R. Prognostic impact of right ventricular function in advanced heart failure. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
In patients with heart failure with reduced ejection fraction (HFrEF), the presence of coexistent right ventricular (RV) systolic dysfunction is associated with a worse functional capacity and outcome. However, the measurement of RV function is often overshadowed by its left counterpart.
Purpose
To assess the prognostic impact of RV dysfunction in a population of advanced HF patients.
Methods
Prospective evaluation of adult patients with advanced HFrEF referred to our Institution for evaluation with HF team for possible indication for urgent heart transplantation (HT) or MCS. Patients were followed up for 1 year for the primary endpoint of cardiac death and HT. RV systolic dysfunction was defined by a tricuspid annular plane systolic excursion (TAPSE) < 17 mm and/ or fractional area change (FAC) < 35%. A survival analysis was performed to evaluate the prognostic impact of RV dysfunction and survival curves were compared using the log-rank test.
Results
A total of 450 HFrEF patients (mean age of 56 ± 12 years, 80% male, mean LVEF of 29 ± 4%, mean TAPSE of 19 ± 3 mm and RV FAC of 37 ± 6%), of which 30.4% had RV dysfunction. Thirty patients (6.7%) met the primary endpoint. Patients with RV dysfunction had a higher NT-proBNP value (3278.9 ± 296.7 pg/mL, p = 0.005) and a lower LVEF (26.7 ± 6.4 vs 31.4 ± 5.1, p < 0.001), as well as a worse cardiopulmonary fitness (CPET duration: 7.2 ± 3.8 vs 8.6 ± 4.1, p = 0.019; pVO2: 13.6 ± 4.9 vs 16.2 ± 6.1 ml/kg/min, p = 0.006; VE/VCO2 slope: 41.8 ± 11.9 vs 37.0 ± 10.6, p = 0.015; cardiorespiratory optimal point: 33.0 ± 8.9 vs 28.4 ± 6.2, p < 0.001). RV dysfunction was associated with a lower survival free of events during the first follow-up year (log-rank p = 0.046).
Conclusion
RV is associated with a poor survival in advanced HF patients and it may improve risk stratification in this population. Abstract Figure.
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Affiliation(s)
| | - P Bras
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | - A Galrinho
- Hospital de Santa Marta, Lisbon, Portugal
| | - AT Timoteo
- Hospital de Santa Marta, Lisbon, Portugal
| | - L Branco
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Ferreira
- Hospital de Santa Marta, Lisbon, Portugal
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Dias Ferreira Reis JP, Bras P, Goncalves A, Pereira Da Silva T, Soares R, Timoteo AT, Galrinho A, Branco L, Ferreira R. Functional mitral regurgitation in advanced heart failure. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.241] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Moderate-to-severe functional mitral regurgitation (fMR) is present in about one-third of patients with heart failure (HF) with reduced left ventricular (LV) ejection fraction (HFrEF) and contributes to progression of the symptoms of HF and is and independent predictor of worse clinical outcomes.
Objective
To characterize the population of advanced HF patients with severe fMR and assess its prognostic impact.
Methods
Prospective evaluation of adult patients with advanced HFrEF were referred to our Institution for evaluation with HF team and possible indication for urgent heart transplantation (HT) or MCS. Patients were followed up for 1 year for the primary endpoint of cardiac death and HT. Severe fMR was defined by an EROA ≥ 20 mm2 and/or a regurgitant volume (RVol) ≥ 30 mL either taken from TTE or TOE. A survival analysis was performed to evaluate the prognostic impact of fMR and survival curves were compared using the log-rank test.
Results
A total of 450 HFrEF patients (mean age of 56 ± 12 years, 80% male, mean LVEF of 29 ± 4%) of which 14.4% had severe fMR, with a mean EROA of 29.2 ± 3.1 mm2 and a mean RVol of 43.6 ± 4.7 mL. Thirty patients (6.7%) met the primary endpoint. Patients with severe fMR were more likely to be female (69.2% vs 81.5%, p = 0.026) and to have atrial fibrillation (27.0% vs 14.1%, p = 0.028), had a higher NT-proBNP value (3625.8 ± 496.9 vs 1940 ± 212.4 pg/mL, p = 0.001), a lower LVEF (25.9 ± 6.8 vs 29.0 ± 6.7, p = 0.001), more dilated LV (LV end-diastolic diameter: 72.8 ± 13.3 vs 66.9 ± 9.0 P = 0.036), a lower HFSS value (8.1 ± 1.0 vs 8.6 ± 1.0). There was no difference regarding HF etiology, NYHA class or cardiopulmonary fitness (pVO2: 16.6 ± 5.6 vs 16.5 ± 6.3 ml/kg/min, p = 0.19; VE/VCO2 slope: 35.4 ± 9.9 vs 34.0 ± 9.7, p = 0.328). EROA was an independent predictor of the primary outcome (OR 1.23, 95% CI 1.08-1.54, p = 0.039) and patients with severe fMR had a lower survival free of events during the first follow-up year (log-rank p = 0.012).
Conclusion
Severe fMR was associated with worse clinical outcomes in advanced HF population. Abstract Figure.
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Affiliation(s)
| | - P Bras
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | - AT Timoteo
- Hospital de Santa Marta, Lisbon, Portugal
| | - A Galrinho
- Hospital de Santa Marta, Lisbon, Portugal
| | - L Branco
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Ferreira
- Hospital de Santa Marta, Lisbon, Portugal
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Esteves E, Mendes AK, Barros M, Figueiredo C, Andrade J, Capelo J, Novais A, Rebelo C, Soares R, Nunes A, Ferreira A, Lemos J, Duarte AS, Silva RM, Inácio Bernardino L, Correia MJ, Esteves AC, Rosa N. Population wide testing pooling strategy for SARS-CoV-2 detection using saliva. PLoS One 2022; 17:e0263033. [PMID: 35089942 PMCID: PMC8797214 DOI: 10.1371/journal.pone.0263033] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 01/10/2022] [Indexed: 12/24/2022] Open
Abstract
SARS-CoV-2 pandemic has forced frequent testing of populations. It is necessary to identify the most cost-effective strategies for the detection of COVID-19 outbreaks. Nasopharyngeal samples have been used for SARS-CoV-2 detection but require a healthcare professional to collect the sample and cause discomfort and pain to the individual. Saliva has been suggested as an appropriate fluid for the diagnosis of COVID-19. We have investigated the possibility of using pools of saliva samples to detect SARS-CoV-2 in symptomatic and asymptomatic patients. Two hundred and seventy-nine saliva samples were analyzed through RT-PCR of Envelope, Nucleocapsid and Open Reading Frame 1ab genes. Reproducibility assays showed an almost perfect agreement as well as high sensitivity (96.6%), specificity (96.8%), positive predicted value (96.6%), and negative predicted value (96.8%). The average Cycle Threshold of the genes detected was 29.7. No significant differences (p > 0.05) were detected when comparing the cycle threshold average of two consecutive reactions on the same positive saliva samples. Saliva samples have a higher median viral load (32.6) than in nasopharyngeal samples (28.9), although no significant differences were detected (p > 0.05). Saliva-pool samples allowed effective SARS-CoV-2 screening, with a higher sensibility (96.9%) on 10-sample pools than in 20-sample pools (87.5%). Regardless of pools size specificity was high (99.9%) and an almost perfect agreement was observed. Our strategy was successfully applied in population wide testing of more than 2000 individuals, showing that it is possible to use pooled saliva as diagnostic fluid for SARS-CoV-2 infection.
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Affiliation(s)
- Eduardo Esteves
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
- Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Ana Karina Mendes
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
| | - Marlene Barros
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
| | | | | | - Joana Capelo
- Centro Hospitalar Tondela Viseu, Viseu, Portugal
| | | | - Carla Rebelo
- Centro Hospitalar Tondela Viseu, Viseu, Portugal
| | - Rita Soares
- Centro Hospitalar Tondela Viseu, Viseu, Portugal
| | - Ana Nunes
- Centro Hospitalar Tondela Viseu, Viseu, Portugal
| | | | - Joana Lemos
- Centro Hospitalar Tondela Viseu, Viseu, Portugal
| | - Ana Sofia Duarte
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
| | - Raquel M. Silva
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
| | | | - Maria José Correia
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
| | | | - Nuno Rosa
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
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Dias Ferreira Reis J, Goncalves A, Bras P, Moreira R, Rio P, Pereira Silva T, Timoteo A, Soares R, Cruz Ferreira R. Predictive ability of cardiopulmonary exercise test parameters in heart failure patients with cardiac resynchronization therapy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
There is evidence suggesting that a peak oxygen uptake (pVO2) cut-off of 10ml/kg/min provides a more precise risk stratification in Cardiac Resynchronization Therapy (CRT) patients. Our aim was to compare the prognostic power of several cardiopulmonary exercise testing (CPET) parameters in patients with CRT and assess the discriminative ability of the guideline-recommended pVO2 cut-off values.
Methods
Prospective evaluation of consecutive heart failure (HF) patients with left ventricular ejection fraction ≤40%. The primary endpoint was a composite of cardiac death and urgent heart transplantation (HT) in the first 24 follow-up months and was analyzed by several CPET parameters for the highest area under thecurve (AUC) in the CRT group. A survival analysis was performed to evaluate the risk stratification provided by several different cut-offs.
Results
A total of 450 HF patients, of which 114 had a CRT device. These patients had a higher baseline risk profile, but there was no difference regarding the primary outcome (13.2% vs 11.6%, p=0.660). End-tidal carbon dioxide pressure at the anaerobic threshold (PETCO2AT) had the highest AUC value, which was significantly higher than that of pVO2 in the CRT group (0.951 vs 0.778, p=0.046). The currently recommended pVO2 cut-off provided accurate risk stratification in this setting (p<0.001),and the suggested cut-off value of 10 ml/min/kg did not improve risk discrimination in device patients (p=0.772).
Conclusion
PETCO2AT outperforms pVO2's prognostic power for adverse events in CRT patients. The current guideline-recommended pVO2 cut-off can precisely risk-stratify this population.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | | | - P Bras
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Moreira
- Hospital de Santa Marta, Lisbon, Portugal
| | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - A Timoteo
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
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11
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Ribeiro FF, Ferreira F, Rodrigues RS, Soares R, Pedro DM, Duarte-Samartinho M, Aroeira RI, Ferreiro E, Valero J, Solá S, Mira H, Sebastião AM, Xapelli S. Regulation of hippocampal postnatal and adult neurogenesis by adenosine A 2A receptor: Interaction with brain-derived neurotrophic factor. Stem Cells 2021; 39:1362-1381. [PMID: 34043863 DOI: 10.1002/stem.3421] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 03/09/2020] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
Adenosine A2A receptor (A2A R) activation modulates several brain processes, ranging from neuronal maturation to synaptic plasticity. Most of these actions occur through the modulation of the actions of the neurotrophin brain-derived neurotrophic factor (BDNF). In this work, we studied the role of A2A Rs in regulating postnatal and adult neurogenesis in the rat hippocampal dentate gyrus (DG). Here, we show that A2A R activation with CGS 21680 promoted neural stem cell self-renewal, protected committed neuronal cells from cell death and contributed to a higher density of immature and mature neuronal cells, particularly glutamatergic neurons. Moreover, A2A R endogenous activation was found to be essential for BDNF-mediated increase in cell proliferation and neuronal differentiation. Our findings contribute to further understand the role of adenosinergic signaling in the brain and may have an impact in the development of strategies for brain repair under pathological conditions.
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Affiliation(s)
- Filipa F Ribeiro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Filipa Ferreira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Rui S Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Rita Soares
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- iMed.ULisboa, Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
| | - Diogo M Pedro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Marta Duarte-Samartinho
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Rita I Aroeira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Elisabete Ferreiro
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Jorge Valero
- Laboratory of Glial Cell Biology, Achucarro Basque Center for Neuroscience, Leioa, Spain
- Ikerbasque Foundation, Bilbao, Spain
- University of the Basque Country EHU/UPV, Leioa, Spain
| | - Susana Solá
- iMed.ULisboa, Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
| | - Helena Mira
- Instituto de Salud Carlos III (ISCIII), Majadahonda, Madrid, Spain
- Instituto de Biomedicina de Valencia (IBV-CSIC), Valencia, Spain
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Sara Xapelli
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes (iMM, JLB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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Duarte F, Sousa T, Funke V, Colturato V, Hamerschlak N, Vilela N, Macedo M, Vigorito A, Soares R, Paz A, Stevenazzi M, Neto A, Bettarello G, Gusmão B, Salvino M, Calixto R, Moreira M, Teixeira G, Silva C, Lemes R, Garcia YO, Paton E, Rocha V, Enrico A, Bonfim C, Chiattone R, Simioni A, Arrais C, Coelho E, Diaz L. Topic: AS08-Treatment/AS08h-Allogeneic hematopoietic cell transplantation -Bridging to transplantation. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106681.54] [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: 10/20/2022]
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13
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Paulo SL, Ribeiro-Rodrigues L, Rodrigues RS, Mateus JM, Fonseca-Gomes J, Soares R, Diógenes MJ, Solá S, Sebastião AM, Ribeiro FF, Xapelli S. Sustained Hippocampal Neural Plasticity Questions the Reproducibility of an Amyloid-β-Induced Alzheimer's Disease Model. J Alzheimers Dis 2021; 82:1183-1202. [PMID: 34151790 DOI: 10.3233/jad-201567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The use of Alzheimer's disease (AD) models obtained by intracerebral infusion of amyloid-β (Aβ) has been increasingly reported in recent years. Nonetheless, these models may present important challenges. OBJECTIVE We have focused on canonical mechanisms of hippocampal-related neural plasticity to characterize a rat model obtained by an intracerebroventricular (icv) injection of soluble amyloid-β42 (Aβ42). METHODS Animal behavior was evaluated in the elevated plus maze, Y-Maze spontaneous or forced alternation, Morris water maze, and open field, starting 2 weeks post-Aβ42 infusion. Hippocampal neurogenesis was assessed 3 weeks after Aβ42 injection. Aβ deposition, tropomyosin receptor kinase B levels, and neuroinflammation were appraised at 3 and 14 days post-Aβ42 administration. RESULTS We found that immature neuronal dendritic morphology was abnormally enhanced, but proliferation and neuronal differentiation in the dentate gyrus was conserved one month after Aβ42 injection. Surprisingly, animal behavior did not reveal changes in cognitive performance nor in locomotor and anxious-related activity. Brain-derived neurotrophic factor related-signaling was also unchanged at 3 and 14 days post-Aβ icv injection. Likewise, astrocytic and microglial markers of neuroinflammation in the hippocampus were unaltered in these time points. CONCLUSION Taken together, our data emphasize a high variability and lack of behavioral reproducibility associated with these Aβ injection-based models, as well as the need for its further optimization, aiming at addressing the gap between preclinical AD models and the human disorder.
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Affiliation(s)
- Sara L Paulo
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Leonor Ribeiro-Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Rui S Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Joana M Mateus
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - João Fonseca-Gomes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Rita Soares
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Maria J Diógenes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Susana Solá
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Filipa F Ribeiro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Sara Xapelli
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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14
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Uzai G, Monteiro C, Soares R, Silva M, Oliveira A, Santos D, Santos R, Nunes L. Morphological and molecular diagnosis of diseases of free-ranging crab-eating foxes (Cerdocyon thous). ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-12267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The aim of this study was to investigate the occurrence of diseases in free-ranging wild canids that were roadkill on highways in the State of Espírito Santo, Brazil. PCR tests were performed for the detection of Brucella sp., Babesia sp., Rangelia sp., and Hepatozoon sp. in the spleen. Morphological evaluation and identification of parasites was performed in the liver and lung. Twenty specimens of C. thous were necropsied at the Animal Pathology Sector of the Veterinary Hospital of the Universidade Federal do Espírito Santo. Tissue samples were processed for histopathological examination and polymerase chain reaction (PCR) analysis. There was no PCR amplification of genomic DNA sequences of Brucella sp., Babesia sp., Rangelia sp., and Hepatozoon sp. using DNA extracted from the spleen as template. Histologically, lesions associated with parasitism by Platynosomum sp. and Angiostrongylus sp. were observed in the liver and lung, respectively. This is the first report of Platynosomum sp. and Angiostrongylus sp. parasitism in C. thous in the state of Espírito Santo, Brazil. Therefore, this study demonstrated parasitism of crab-eating foxes by Platynosomum sp. and Angiostrongylus sp. Importantly, no evidence of infection with Brucella sp., Babesia sp., Rangelia sp., and Hepatozoon sp. was obtained by PCR analysis.
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Affiliation(s)
- G.J.S. Uzai
- Universidade Federal do Espírito Santo, Brazil
| | | | - R. Soares
- Universidade Federal do Espírito Santo, Brazil
| | - M.A. Silva
- Universidade Federal do Espírito Santo, Brazil
| | | | - D.O. Santos
- Universidade Federal de Minas Gerais, Brazil
| | - R.L. Santos
- Universidade Federal de Minas Gerais, Brazil
| | - L.C. Nunes
- Universidade Federal do Espírito Santo, Brazil
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15
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Soares R, Ribeiro FF, Lourenço DM, Rodrigues RS, Moreira JB, Sebastião AM, Morais VA, Xapelli S. The neurosphere assay: an effective in vitro technique to study neural stem cells. Neural Regen Res 2021; 16:2229-2231. [PMID: 33818505 PMCID: PMC8354118 DOI: 10.4103/1673-5374.310678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Rita Soares
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina; Instituto de Farmacologia e Neurociências, Faculdade de Medicina; Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Filipa F Ribeiro
- Instituto de Medicina Molecular João Lobo Antunes; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Diogo M Lourenço
- Instituto de Medicina Molecular João Lobo Antunes; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Rui S Rodrigues
- Instituto de Medicina Molecular João Lobo Antunes; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - João B Moreira
- Instituto de Medicina Molecular João Lobo Antunes; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Ana M Sebastião
- Instituto de Medicina Molecular João Lobo Antunes; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Vanessa A Morais
- Instituto de Medicina Molecular João Lobo Antunes; Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Sara Xapelli
- Instituto de Medicina Molecular João Lobo Antunes; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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16
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Soares R, Santos-Carvalho A, Santos-Carvalho A, Cravo-Roxo I, Ribeiro L, Marques R, Alarico S, Ferreira S. Infection control through education: HIV prevention. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.850] [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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17
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Dias Ferreira Reis J, Goncalves A, Bras P, Ferreira V, Viegas J, Rio P, Moreira R, Pereira Silva T, Timoteo A, Soares R, Cruz Ferreira R. Prognostic value of the cardiorespiratory optimal point during submaximal exercise testing. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Peak oxygen consumption (pVO2) is a key parameter in assessing the prognosis of heart failure with reduced ejection fraction (HFrEF) patients (pts). However, it is a less reliable parameter when the cardiopulmonary exercise test (CPET) is not maximal. It is crucial to identify the submaximal exercise variables with the best prognostic power (PP), in order to improve the management of pts that cannot attain a maximal CPET.
Purpose
The aim of this study was to evaluate and compare the PP of several exercise parameters in submaximal CPET for risk stratification in pts with HFrEF.
Methods
Prospective evaluation of adult pts with HFrEF submitted to CPET in a tertiary center. A submaximal CPET was defined by a respiratory exchange ratio (RER) ≤1.10. Pts were followed up for at least 1 year for the primary endpoint of cardiac death and urgent heart transplantation/ ventricular assist device implantation. Several CPET parameters were analyzed as potential predictors of the combined endpoint and their PP (area under the curve - AUC) was compared to that of pVO2, using the Hanley and McNeil test.
Results
CPET was performed in 487 HF pts, of which 317 (66%) performed a submaximal CPET. Pts averaged 57±12 years of age, 77% were male, 45.7% had ischemic cardiomyopathy, with a mean LVEF of 30.4±7.6%, a mean heart failure survival score of 8.6±1.1. The mean pVO2 was 17.1±5.5 ml/kg/min and the mean RER 1.01±0.08. During a mean follow-up (FU) time of 11±1 months, 18 pts (6%) met the primary endpoint. Cardiorespiratory optimal point (OP - VE/VO2) had the highest AUC value (0.915, p=0.001), followed by the partial pressure of end-tidal CO2 at the anaerobic threshold - PETCO2L (0.814, p<0.001). pVO2 presented an AUC of 0.730 (p=0.001). OP≥31 and PETCO2L ≤37mmHg had a sensitivity of 100 and 76.9% and a specificity of 71.1 and 67%, respectively, for the primary outcome. OP presented a significantly higher PP than pVO2 (p=0.048), whether PETCO2L didn't achieve any statistical significance (p=0.164). Pts with anOP≥31 presented a significantly lower survival free of HT during FU (log rank p=0.002).
Conclusion
OP had the highest PP for HF events of all parameters analyzed for a submaximal CPET. This parameter can help stratify the HF pts physiologically unable to reach a peak level of exercise.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | | | - P Bras
- Hospital de Santa Marta, Lisbon, Portugal
| | - V Ferreira
- Hospital de Santa Marta, Lisbon, Portugal
| | - J Viegas
- Hospital de Santa Marta, Lisbon, Portugal
| | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Moreira
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - A Timoteo
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
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19
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Soares R, Ribeiro FF, Lourenço DM, Rodrigues RS, Moreira JB, Sebastião AM, Morais VA, Xapelli S. Isolation and Expansion of Neurospheres from Postnatal (P1-3) Mouse Neurogenic Niches. J Vis Exp 2020. [PMID: 32510488 DOI: 10.3791/60822] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The neurosphere assay is an extremely useful in vitro technique for studying the inherent properties of neural stem/progenitor cells (NSPCs) including proliferation, self-renewal and multipotency. In the postnatal and adult brain, NSPCs are mainly present in two neurogenic niches: the subventricular zone (SVZ) lining the lateral ventricles and the subgranular zone of the hippocampal dentate gyrus (DG). The isolation of the neurogenic niches from postnatal brain allows obtaining a higher amount of NSPCs in culture with a consequent advantage of higher yields. The close contact between cells within each neurosphere creates a microenvironment that may resemble neurogenic niches. Here, we describe, in detail, how to generate SVZ- and DG-derived neurosphere cultures from 1-3-day-old (P1-3) mice, as well as passaging, for neurosphere expansion. This is an advantageous approach since the neurosphere assay allows a fast generation of NSPC clones (6-12 days) and contributes to a significant reduction in the number of animal usage. By plating neurospheres in differentiative conditions, we can obtain a pseudomonolayer of cells composed of NSPCs and differentiated cells of different neural lineages (neurons, astrocytes and oligodendrocytes) allowing the study of the actions of intrinsic or extrinsic factors on NSPC proliferation, differentiation, cell survival and neuritogenesis.
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Affiliation(s)
- Rita Soares
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa; Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa
| | - Filipa F Ribeiro
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa
| | - Diogo M Lourenço
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa
| | - Rui S Rodrigues
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa
| | - João B Moreira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa
| | - Ana M Sebastião
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa
| | - Vanessa A Morais
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Biologia Molecular, Faculdade de Medicina, Universidade de Lisboa
| | - Sara Xapelli
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa; Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa;
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20
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Teixeira MM, Soares R, Monteiro N. Culprit of facial nerve palsy. Emerg Med J 2020; 36:665-683. [PMID: 31641037 DOI: 10.1136/emermed-2019-208691] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2019] [Indexed: 11/03/2022]
Affiliation(s)
| | - Rita Soares
- Department of Internal Medicine, Centro Hospitalar Tondela-Viseu EPE, Viseu, Portugal
| | - Nuno Monteiro
- Department of Internal Medicine, Centro Hospitalar Tondela-Viseu EPE, Viseu, Portugal
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21
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Valentim Goncalves AA, Galrinho A, Pereira-Da-Silva T, Moura Branco L, Rio P, Teresa Timoteo A, Abreu J, Soares R, Ilhao Moreira R, Mendonca T, Coutinho Cruz M, Reis J, Mano T, Cruz Ferreira R. P1433 Antiarrhythmic effects of sacubitril-valsartan therapy assessed by mechanical dispersion index. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Sacubitril/Valsartan (LCZ696) significantly reduced sudden cardiac death in the PARADIGM-HF trial. However, there is little published data regarding the possible explanations for the antiarrhythmic effects found with LCZ696 therapy.
Previous trials have shown that mechanical dispersion by strain echocardiography can predict arrhythmic events in Heart Failure (HF) patients.
The aim of this study was to compare electrocardiographic (ECG) parameters and mechanical dispersion index with left ventricular (LV) global longitudinal strain (GLS) analysis before and after LCZ696 therapy.
Methods
Prospective evaluation of chronic HF patients with LV ejection fraction ≤ 40% despite optimized standard of care therapy, in which LCZ696 therapy was started and no additional HF treatment was expected to change.
ECG and transthoracic echocardiographic data were gathered in the week before starting LCZ696 therapy and 6 months after therapy. A semiautomated analysis of LV GLS was made and mechanical dispersion index was defined as the standard deviation from the 16 time intervals corresponding to each LV segment.
Results
Of the 42 patients, 35 (83.3%) completed the 6 months of follow-up, since 2 (4.8%) patients died and 5 (11.9%) discontinued treatment for adverse events. Mean age was 58.6 ± 11.1 years.
QTc interval (451.9 vs 426.0msec, p < 0.001) and QRS interval (125.1 vs 120.8msec, p = 0.033) were reduced after 6 months of LCZ696 therapy. Mechanical dispersion index (88.4 vs 78.1msec, p = 0.036) was also significantly reduced after therapy.
Conclusion
LCZ696 therapy is associated with antiarrhythmic effects with a reduction in QTc and QRS intervals in ECG and a reduction in mechanical dispersion index as assessed by LV GLS.
Abstract P1433 Figure.
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Affiliation(s)
| | - A Galrinho
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - J Abreu
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - T Mendonca
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - J Reis
- Hospital de Santa Marta, Lisbon, Portugal
| | - T Mano
- Hospital de Santa Marta, Lisbon, Portugal
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22
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Fradinho P, Niccolai A, Soares R, Rodolfi L, Biondi N, Tredici MR, Sousa I, Raymundo A. Effect of Arthrospira platensis (spirulina) incorporation on the rheological and bioactive properties of gluten-free fresh pasta. ALGAL RES 2020. [DOI: 10.1016/j.algal.2019.101743] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Valentim Goncalves AA, Galrinho A, Pereira-Da-Silva T, Moura Branco L, Rio P, Teresa Timoteo A, Abreu J, Soares R, Feliciano J, Ilhao Moreira R, Cruz Ferreira R. 1037 Differences in reverse remodelling between ischemic and non-ischemic left ventricular segments as assessed by myocardial work after sacubitril-valsartan therapy. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Myocardial work (MW) is a new transthoracic echocardiographic (TTE) parameter that enhances the information provided through left ventricular (LV) global longitudinal strain (GLS), allowing to investigate LV performance even in cases of changes in afterload.
None is known about the effects of Sacubitril-Valsartan (LCZ696) therapy in MW parameters.
Purpose
Compare the changes in MW parameters between ischemic and non-ischemic segments after LCZ696 therapy.
Methods
The study was a prospective evaluation of chronic Heart Failure (HF) patients with optimized standard of care therapy and LV ejection fraction ≤40%, in which LCZ696 therapy was started and no other HF treatment was expected to change.
A TTE study was performed before and 6 months after LCZ696 therapy, using the GE Vivid E95 ultrasound system. A semiautomated analysis of GLS was performed after two-dimensional images were acquired in the standard apical 4-, 3- and 2 chamber views. MW and related indices were estimated using custom software.
Two groups were created according to the 17 segment model TTE study before LCZ696 therapy:
G1 (ischemic group): dyskinesia/akinesia/hypokinesia segments in patients with ischemic HF etiology;
G2 (non-ischemic group): normokinesia segments in patients with ischemic and all segments in patients with non-ischemic HF etiology;
Results
Of the 42 patients, 35 (83.3%) completed the six-months follow-up with LCZ696, since 2 patients (4.8%) died and 5 patients (11.9%) discontinued treatment for adverse events. Mean age was 58.6 ± 11.1 years, with ischemic etiology in 15 (42.9%), resulting in a total of 26.5% segments for G1.
Baseline global MW index (GWI) had no statistical difference between G1 and G2 (566.1 VS 584.8mmHg%, p = 0.257), but baseline MW efficiency (GWE) were significantly lower in G1 (71.9 VS 78.8%, p < 0.001).
The table represents the mean values for MW parameters in G1 and G2 before and 6 months after LCZ696 therapy, with a significantly increase in GWI and GWE values in both groups. Despite no difference in the increase in GWE (p = 0.872), the increase in GWI were higher in G2 than G1 (p < 0.001).
Conclusion
MW seems to be a new tool providing signs of reverse remodelling and better cardiac performance in ischemic and non-ischemic segments after LCZ696 therapy.
Table 1 Time 0 6 months p GWI in ischemic segments (mmHg%) 566.1 ± 364.0 696.5 ± 445.2 <0.001 GWE in ischemic segments (%) 71.9 ± 25.0 78.9 ± 19.1 0.009 GWI in non-ischemic segments (mmHg%) 584.8 ± 434.3 812.3 ± 442.0 <0.001 GWE in non-ischemic segments (%) 78.8 ± 21.2 85.7 ± 15.8 0.004 MW data before and after six months of LCZ696 therapy
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Affiliation(s)
| | - A Galrinho
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - J Abreu
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
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24
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Valentim Goncalves AA, Pereira-Da-Silva T, Soares R, De Sousa L, Ilhao Moreira R, Rio P, Feliciano J, Cruz Coutinho M, Reis J, Mano T, Mendonca T, Cruz Ferreira R. P1429 B-Type natriuretic peptide prediction of right catheterization parameters in the first year after heart transplant. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Despite being the gold-standard for hemodynamic assessment, right heart catheterization (RHC) was overcome by plasma B-Type Natriuretic Peptide (BNP) levels in daily clinical routine. However, in the first year after heart transplantation (HT), the relationship between BNP and adverse hemodynamics have yielded conflicting results.
Purpose
The aim of this study was to evaluate whether BNP values can be used to estimate adverse hemodynamics in the first year after HT.
Methods
Prospective study of consecutive RHC performed in the first year after HT (according to the endomyocardial biopsies program). Plasma BNP levels were measured at the same day.
The area under the curve (AUC) was analysed to find the BNP values with higher sensitivity and specificity to detect adverse hemodynamics.
Results
From 2017 to 2018, 50 RHC were performed. Mean age was 48.7 ± 8.3 years, with mean BNP value of 964.4 ± 1114.7pg/ml.
Prediction of adverse hemodynamics by AUC results are represented in the table. BNP values were significantly increased in patients with pulmonary capillary wedge pressure (PCWP) >12mmHg (p < 0.001), cardiac index <2.5L/min/m2 (p = 0.001), mean pulmonary artery pressure (mPAP) ≥25mmHg (p < 0.001), pulmonary vascular resistance > 1,5WU (p = 0.044) and right atrial pressure >5mmHg (p = 0.003).
BNP >500pg/ml had a sensitivity of 78.3% and 87.5% and a specificity of 76.0% and 67.7% to detect PCWP >12mmHg and mPAP ≥25mmHg, respectively.
Conclusion Significant associations were found between BNP values and adverse hemodynamics in RHC, supporting the clinical utility of BNP in the first year after HT.
BNP prediction AUC values SR HEMODYNAMIC PARAMETERS AUC p 95% CI Best BNP value Sensitivity Specificity Pulmonary capillary wedge pressure (PCWP) > 12mmHg 0.798 <0.001 0.671-0.925 > 500pg/ml 78.3% 76.0% Mean pulmonary artery pressure (mPAP) ≥ 25mmHg 0.830 <0.001 0.714-0.946 > 500pg/ml 87.5% 67.7% Cardiac output < 4L/min 0.833 0.002 0.667-1.000 > 1500pg/ml 77.8% 87.5% Cardiac index (CI) < 2.5L/min/m2 0.810 0.001 0.663-0.957 > 1150pg/ml 76.9% 86.1% Pulmonary vascular resistance (PVR) > 1,5WU 0.678 0.044 0.509-0.848 > 200pg/ml 83.3% 47.1% Right atrial pressure (RAP) > 5mmHg 0.744 0.003 0.607-0.880 > 500pg/ml 70.8% 65.4% BNP prediction
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Affiliation(s)
| | | | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | - L De Sousa
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | - J Reis
- Hospital de Santa Marta, Lisbon, Portugal
| | - T Mano
- Hospital de Santa Marta, Lisbon, Portugal
| | - T Mendonca
- Hospital de Santa Marta, Lisbon, Portugal
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25
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Valentim Goncalves AA, Pereira-Da-Silva T, Soares R, Ilhao Moreira R, De Sousa L, Rio P, Feliciano J, Reis J, Mendonca T, Cruz Coutinho M, Mano T, Cruz Ferreira R. P354 Right heart catheterization parameters, echocardiography parameters and B-Type natriuretic peptide prediction of acute cellular rejection in the first year after heart transplant. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Since the mid-1970s, the diagnosis of acute cellular rejection (ACR) has been made by endomyocardial biopsy (EMB). Whether B-Type Natriuretic Peptide (BNP), transthoracic echocardiography (TTE) parameters and right heart catheterization (RHC) parameters can detect rejection in heart transplant (HT) patients have yielded conflicting results and did not overcome the use of EMB in the first year after HT.
Purpose
The aim of this study was to evaluate whether BNP, TTE and RHC parameters can be used to detect ACR in the first year after HT.
Methods
Prospective study of consecutive EMB performed in the first year after HT. Plasma BNP levels, TTE and RHC were performed at the same day.
Clinical significant ACR was defined as ≥ 2R, according to the ISHLT 2004 grading. The area under the curve (AUC) was analysed for statistically significant associations to detect ACR.
Results
From 2017 to 2018, 50 EMB were performed with the following results: 2R - 5 (10.0%); 1R- 29 (58.0%); 0 – 16 (32%). Mean age was 48.7 ± 8.3 years, with mean BNP value of 964.4 ± 1114.7pg/ml.
AUC results of BNP and several TTE and RHC parameters for the prediction of ACR are represented in the table. Right atrial pressure (RAP) value (p = 0.027) was the only significantly predictor of ACR, while isovolumic relaxation time measured by TTE revealed a borderline significant trend (p = 0.076).
RAP > 10mmHg had a sensitivity of 60.0% and a specificity of 84.4% for detecting ACR.
Conclusion
Detecting ACR without EMB remains a clinical challenge, but RAP measured by RHC was a significant predictor of ACR in the first year after HT, while BNP values did not correlate with ACR.
AUC values PARAMETERS AUC p 95% CI BNP 0.658 0.251 0.405-0.911 Troponin I 0.591 0.507 0.260-0.923 Left ventricular ejection fraction 0.416 0.541 0.218-0.614 E/A 0.480 0.895 0.282-0.678 Deceleration time 0.463 0.463 0.161-0.765 Isovolumic relaxion time 0.745 0.076 0.427-1.000 Cardiac index 0.595 0.488 0.346-0.845 Pulmonary capillary wedge pressure 0.628 0.401 0.329-0.926 Mean pulmonary artery pressure 0.684 0.181 0.511-0.857 Right atrial pressure 0.804 0.027 0.631-0.978 AUC values
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Affiliation(s)
| | | | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - L De Sousa
- Hospital de Santa Marta, Lisbon, Portugal
| | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - J Reis
- Hospital de Santa Marta, Lisbon, Portugal
| | - T Mendonca
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - T Mano
- Hospital de Santa Marta, Lisbon, Portugal
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26
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Dias Ferreira Reis JP, Mano T, Valente B, Monteiro A, Silva Cunha P, Oliveira M, Pereira Da Silva T, Soares R, Rio P, Moura Branco L, Ferreira R. P175 Cardiac device infection: to extract or not to extract, that is the question. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.048] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
The incidence of infectious complications related to intracardiac devices has been increasing in recent year and is associated with a poor prognosis, which is determined not only by the infectious process but also by the severity of the underlying cardiac pathology and the spectrum of comorbidities presented. Appropriate antibiotic therapy and extraction of the devices are fundamental in the management of these patients.
Case report
We describe the case of a 66-year-old patient on a waiting list for transplantation due to non-ischemic dilated cardiomyopathy with poor left ventricular systolic function (LVEF of 10%), with severe functional mitral regurgitation and severe pulmonary hypertension, who received a CRT-D for secondary prevention (non-responder). He was admitted for decompensated heart failure (NYHA functional class IV and "dry-cold" profile) requiring inotropic support becoming dependent on dobutamine. During hospitalization, there was a progressive increase in inflammatory markers accompanied by recurrent febrile peak and inflammatory signs of the central venous catheter, with catheter-tip and serial hemocultures positive for Morganella morganii. Piperacillin / tazobactam was started. Due to the lack of response to pathogen directed antibiotic therapy, he underwent a transesophageal echocardiogram (TEE) that revealed several filiform images associated with the electrodes, with no image of valvular vegetations, which led to the association of gentamicin and device extraction (DE), according to the Pisa technique, that occurred without complications. On the 7th day after DE, there was a progressive clinical deterioration in spite of increasing doses of inotropes and vasopressors. It was considered that patient would not be candidate for cardiac transplantation or mechanical ventricular assist, and died on the 118th day of hospitalization in refractory cardiogenic shock.
Conclusion
Device endocarditis is a class I indication for intracardiac DE and TEE is fundamental in its diagnosis. Despite being a considered a non-responder to cardiac resynchronization therapy based on clinical and echocardiographic criteria, this case illustrates how the loss of cardiac resynchronization may have contributed to the patient’s hemodynamic deterioration and have played a fundamental role in the clinical outcome.
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Affiliation(s)
| | - T Mano
- Hospital de Santa Marta, Lisbon, Portugal
| | - B Valente
- Hospital de Santa Marta, Lisbon, Portugal
| | - A Monteiro
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - M Oliveira
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - R Ferreira
- Hospital de Santa Marta, Lisbon, Portugal
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27
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Brisbois M, Silva H, Santos A, Canasta H, Feno A, Cabral L, Soares R. A Bridge to Wellness: Gains from a health fair among fishermen in the Port of New Bedford, USA. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Globally, it has been noted that fishermen have a higher mortality from cardiovascular disease, cancer, and injury from work-related accidents when compared to the general population. A potential increase in unemployment in fishermen in New Bedford could result in a lower income level which relates to an increase in risk behaviors, less health screenings, and negative health behaviors. While there is a lack of health-related data among fishermen across the globe, there is little information regarding the health among fishermen, who are predominantly immigrants, in the US.
Objectives
The objectives include designing a health promotion fair to prepare nursing students with the skills to educate fishermen associated with nutrition, diabetes mellitus, cancer and hypertension as identified by key informants in the community.
Results
Students expressed gains in achieving nursing competencies related to collaboration, communication, and teaching/learning by designing a fair with stations related to the four health topics with posters and activities. Educational materials were available in both Portuguese and English to support this aggregate who expressed learning new knowledge. Networking among local fishing agencies, nursing students and the fishermen supported this project from start to finish.
Conclusions
Despite limited access to this vulnerable group, learning nursing competencies and increased fishermen’s knowledge were realized. Connecting students with vulnerable populations is an effective way to promote learning for both groups.
Key messages
Multiple gains are noted when nursing students are paired with vulnerable community aggregates. Learning to work in the community with local agencies and groups is an effective teaching/learning pedagogy.
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Affiliation(s)
- M Brisbois
- Community Nursing, University of Mass Dartmouth, Dartmouth, USA
| | - H Silva
- School of Health, University of the Azores, Ponta Delgada, Portugal
| | - A Santos
- School of Health, University of the Azores, Ponta Delgada, Portugal
| | - H Canasta
- Community Nursing, University of Mass Dartmouth, Dartmouth, USA
| | - A Feno
- Community Nursing, University of Mass Dartmouth, Dartmouth, USA
| | - L Cabral
- School of Health, University of the Azores, Ponta Delgada, Portugal
| | - R Soares
- School of Health, University of the Azores, Ponta Delgada, Portugal
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28
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Brisbois M, Silva H, Soares R, Cabral L, Canasta H, Feno A, Santos A. Bridging Generations: Sharing stories from the past with the future. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
As the immigration population continues to grow; little is known about this phenomenon from the immigrants’ perspective. In recent years, nurses have embraced narrative inquiry to better understand the human experience. When relaying their stories, vulnerable groups legitimize their behavior, share their emotional experiences, and amplify their voices that may have otherwise remained silent.
Objective
Eight elderly Portuguese women who immigrated to the United States (US) were interviewed about their experience of immigration by nursing students from Portugal and U.S., as part of a student exchange. The objective of this project was to better understand the impact of immigration through narrative inquiry.
Results
On average, the women lived in the US for approximately fifty years; immigrating in their early twenties. Most women arrived alone or accompanied by spouse and/or children. Their first memories were related to snow, and solitude of being in a new country. The participants attended classes to obtain documents or learn English. All worked in the textile industry; their greatest accomplishment was buying their own house. Challenges faced were related to language and difficult jobs. Overall, they had no regrets except in leaving family members behind. Their message to the students was that love and family are most important in the world. Students were able to realize emigration and immigration from their respective countries.
Conclusions
Rich descriptions provided an in-depth understanding of the details of the women’s experience. Student nurses gained valuable skills and knowledge to understand the impact of immigration among Portuguese women using narrative inquiry.
Key messages
The use of narrative inquiry proved to be a valuable method to interview Portuguese immigrant women. Every immigrant has a unique narrative to share that allowed for nursing student’s appreciation of the experience across generations.
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Affiliation(s)
- M Brisbois
- Community Nursing, University of Mass Dartmouth, Dartmouth, USA
| | - H Silva
- School of Health, University of the Azores, Ponta Delgada, Portugal
| | - R Soares
- School of Health, University of the Azores, Ponta Delgada, Portugal
| | - L Cabral
- School of Health, University of the Azores, Ponta Delgada, Portugal
| | - H Canasta
- Community Nursing, University of Mass Dartmouth, Dartmouth, USA
| | - A Feno
- Community Nursing, University of Mass Dartmouth, Dartmouth, USA
| | - A Santos
- School of Health, University of the Azores, Ponta Delgada, Portugal
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29
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Zaglia T, Prando V, Bertoli S, Favaro G, Di Mauro V, Guescini M, Di Bona A, Lo Verso F, Soares R, Da Costa Martins P, Catalucci D, Mongillo M, Sandri M. 262Circulating muscle-derived mir-206 links skeletal muscle dysfunction to cardiac autonomic denervation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Purpose
Recent studies and our preliminary data demonstrate that muscle-specific ablation of the autophagy-related protein Atg7, leads to block of autophagy, sarcopenia and destabilization of the neuro-muscular junction (NMJ). In addition, Atg7 knock-out (Atg7 KO) muscle fibers release exosomes containing the muscle specific, miR-206, which is consistently elevated in the plasma. Interestingly, we found that miR-206 content was elevated in the heart, suggesting cardiac uptake of the miR-carrying circulating exosomes. We thus aimed at defining the effects of miR-206 on heart homeostasis.
Methods
Here, we analyzed the cardiac phenotype of adult (12mo.) and aged (24mo.) Atg7 KO mice, as well as of adult C57BL/6J mice injected, via tail vein, with scramble- or miR-206-loaded exosomes. Exosomes were isolated from EDL muscle of control and Atg7 KO mice, as well as from HEK293 cells. Heart function was assessed by echocardiography and ECG-telemetry. Confocal IF, whole-mount IF on heart blocks and multiphoton imaging were used to assess heart structure and sympathetic innervation. Bioinformatics, molecular and biochemical analyses were performed to identify novel targets of miR-206. IF, BRET assay and imaging of TrKA translocation were performed in cultured sympathetic neurons (SNs).
Results
We demonstrate that circulating exosomes, containing miR-206, are taken up by the heart leading to sympathetic dysinnervation, accompanied to reduction in the neurogenic control of cardiac rhythm and increased arrhythmogenesis. In vitro assays demonstrated that exosome-carried miR-206 targets cardiac SNs (cSNs), compromising cell structure and function. Indeed, increased miR-206 expression is accompanied by cSN atrophy, irregular axonal distribution of the active neurotransmitter release sites, and reduction in axonal sprouting. These effects are likely attributed to the miR-206-mediated down-regulation of the NGF receptor p75, as demonstrated by bioinformatics, luciferase assay, molecular and biochemical analyses in vitro and ex vivo. BRET assay, performed in cultured SNs treated with exosomes carrying miR-206, showed reduced formation of p75/TrkA complexes, which generate high-affinity binding sites for NGF and enhance neurotrophin responsiveness. Consistent with impaired NGF retrograde transport, miR-206 over-expressing SNs displayed reduced NGF protein content and decreased phosphorylation of Akt, which is an NGF downstream target, regulating neuronal survival. Interestingly, these latter results were confirmed in the stellate ganglia from Atg KO and miR-206 treated mice.
miR-206 causes heart dysinnervation
Conclusions
We identify miR-206 as a key molecular player in the “muscle-to-heart” communication. miR-206 may participate to the pathogenesis of secondary cardiac dysfunction in skeletal muscle diseases associated to increased circulating levels of miR-206, ranging from ageing to neurodegenerative disorders (i.e. ALS, DMD).
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Affiliation(s)
- T Zaglia
- University of Padova, Dept of Cardiac, Thoracic and Vascular Sciences and Public Health, Padova, Italy
| | - V Prando
- Department of Biomedical Sciences, Padova, Italy
| | - S Bertoli
- Department of Biomedical Sciences, Padova, Italy
| | - G Favaro
- Venetian Institute of Molecular Medicine, Padova, Italy
| | - V Di Mauro
- UOS of Milan and Humanitas Clinical and Research Center, Milan, Italy
| | - M Guescini
- University of Urbino, Department of molecular Sciences, Urbino, Italy
| | - A Di Bona
- University of Padova, Dept of Cardiac, Thoracic and Vascular Sciences and Public Health, Padova, Italy
| | - F Lo Verso
- Venetian Institute of Molecular Medicine, Padova, Italy
| | - R Soares
- Venetian Institute of Molecular Medicine, Padova, Italy
| | - P Da Costa Martins
- Maastricht University, Department of Cardiology, Faculty of Health, Medicine and Life Sciences, Maastricht, Netherlands (The)
| | - D Catalucci
- UOS of Milan and Humanitas Clinical and Research Center, Milan, Italy
| | - M Mongillo
- Department of Biomedical Sciences, Padova, Italy
| | - M Sandri
- Department of Biomedical Sciences, Padova, Italy
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Valentim Goncalves A, Galrinho A, Pereira-Da-Silva T, Ilhao Moreira R, Soares R, Moura Branco L, Rio P, Feliciano J, Abreu J, Timoteo AT, Mendonca T, Reis J, Mano T, Cruz Coutinho M, Cruz Ferreira R. 4940Early reverse remodelling assessed by myocardial work after sacubitril-valsartan therapy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Sacubitril/Valsartan (LCZ696) had prognosis benefit demonstrated in PARADIGM-HF trial, however less is known about his effects in cardiac dimensions and function.
Myocardial work (MW) is a new transthoracic echocardiographic (TTE) parameter. None is known about the effects of LCZ696 therapy in MW parameters.
Purpose
The aim of this study was to prospectively compare several TTE parameters, including MW, before and after LCZ696 therapy.
Methods
Prospective evaluation of chronic HF patients with optimized standard of care therapy and LVEF≤40%, in which LCZ696 therapy was started.
TTE study was performed before and 6 months after LCZ696 therapy. A semiautomated analysis of GLS was performed and MW were estimated using custom software of GE Vivid E95 ultrasound system.
Results
Of the 42 patients, 35 (83.3%) completed the 6 months follow-up, since 2 patients (4.8%) died and 5 patients (11.9%) discontinued treatment for adverse events. Mean age was 58.6±11.1 years with 82.9% of male patients.
LV dimensions and atrial volumes were significantly lower at 6 months of treatment. LVEF had a mean absolute raise of 8.9% and GLS a relative decrease of 27.8%. MW had a significant increase in constructive work (720.2mmHg VS 900.6mmHg, p=0.016) and work efficiency (78.6% VS 86.6%, p=0.027), with a non-significant decrease in the wasted work (150.2mmHg VS 136.8mmHg, p=0.441).
TTE data before and after 6 months of LCZ696 treatment Time 0 6 months p LV end-diastolic diameter (mm) 71.3±8.4 66.9±7.6 0.001 LV end-systolic diameter (mm) 57.8±9.4 53.1±9.3 0.002 Interventricular septum (mm) 9.6±1.7 9.9±1.9 0.280 LVEF (%) 29.3±6.4 38.2±8.9 <0.001 GLS (%) −7.0±2.9 −8.9±2.8 0.001 MW – Constructive (mmHg) 720.2±230.5 900.6±343.2 0.016 MW – Wasted (mmHg) 150.2±83.3 136.8±54.2 0.441 MW – Efficiency (%) 78.6±10.8 86.6±12.0 0.027 E/e' 13.7±4.5 12.8±4.9 0.449 Pulmonary artery systolic pressure (mmHg) 38.3±12.2 30.9±10.6 <0.001 Left atrium volume (ml/m2) 51.5±22.6 43.7±15.8 0.004 Right atrium volume (ml/m2) 33.1±4.4 28.5±13.5 0.036 TAPSE (mm) 19.2±4.4 20.0±4.9 0.404
Conclusion
LCZ696 therapy is associated with signs of reverse remodelling in TTE, including an increase in constructive work and work efficiency.
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Affiliation(s)
| | - A Galrinho
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - J Abreu
- Hospital de Santa Marta, Lisbon, Portugal
| | | | - T Mendonca
- Hospital de Santa Marta, Lisbon, Portugal
| | - J Reis
- Hospital de Santa Marta, Lisbon, Portugal
| | - T Mano
- Hospital de Santa Marta, Lisbon, Portugal
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Cunha N, Marques B, Soares R, Raquel M, Couto J, Santos J, Martins T, Rodrigues F, Valido F. Thyrotropin receptor stimulating immunoglobulin: Clinical utility in graves’ disease diagnosis. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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Silva-Cardoso J, Brás D, Canário-Almeida F, Andrade A, Oliveira L, Pádua F, Fonseca C, Bragança N, Carvalho S, Soares R, Santos JF. Neurohormonal modulation: The new paradigm of pharmacological treatment of heart failure. Rev Port Cardiol 2019; 38:175-185. [PMID: 31029493 DOI: 10.1016/j.repc.2018.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 07/30/2018] [Accepted: 10/29/2018] [Indexed: 12/15/2022] Open
Abstract
The current paradigm of medical therapy for heart failure with reduced ejection fraction (HFrEF) is triple neurohormonal blockade with an angiotensin-converting enzyme inhibitor (ACEI), a beta-blocker (BB) and a mineralocorticoid receptor antagonist (MRA). However, three-year mortality remains over 30%. Stimulation of counter-regulatory systems in addition to neurohormonal blockade constitutes a new paradigm, termed neurohormonal modulation. Sacubitril/valsartan is the first element of this new strategy. PARADIGM-HF was the largest randomized clinical trial conducted in HFrEF. It included 8442 patients and compared the efficacy and safety of sacubitril/valsartan versus enalapril. The primary endpoint was the composite of cardiovascular mortality and hospitalization due to HF, which occurred in 914 (21.8%) patients receiving sacubitril/valsartan and in 1117 (26.5%) patients receiving enalapril (HR 0.8, 95% CI 0.73-0.87, p=0.0000002; NNT 21). Sacubitril/valsartan reduced both primary endpoint components, as well as sudden cardiac death, death due to worsening HF, and death from all causes. Patients on sacubitril/valsartan reported less frequent deterioration of HF and of quality of life, and discontinued study medication less frequently because of an adverse event. PARADIGM-HF demonstrated the superiority of sacubitril/valsartan over enalapril, with a 20% greater impact on cardiovascular mortality compared to ACEIs. Accordingly, in 2016, the European (ESC) and American (ACC/AHA/HFSA) cardiology societies simultaneously issued a class I recommendation for the replacement of ACEIs by sacubitril/valsartan in patients resembling PARADIGM-HF trial participants.
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Affiliation(s)
- J Silva-Cardoso
- Unidade de Doenças Cardiovasculares, Faculdade de Medicina da Universidade do Porto, Portugal; Centro de Pesquisa em Tecnologias e Serviços de Saúde, Universidade do Porto, Portugal; Clínica de Insuficiência Cardíaca e Transplante do Serviço de Cardiologia do Centro Hospitalar de S. João, Porto, Portugal.
| | - D Brás
- Medical Advisor, Departamento Médico, Novartis Farma-Produtos Farmacêuticos S.A., Lisboa, Portugal
| | - F Canário-Almeida
- Serviço de Cardiologia do Hospital Senhora da Oliveira, Guimarães, Portugal
| | - A Andrade
- Clínica de Insuficiência Cardíaca, Serviço de Cardiologia do Centro Hospitalar do Tâmega e Sousa, Penafiel, Portugal
| | - L Oliveira
- Serviço de Cardiologia do Centro Hospitalar Cova da Beira, Covilhã, Portugal
| | - F Pádua
- Hospital Dr. José Maria Grande (Unidade Local de Saúde do Norte Alentejano), Portalegre, Portugal
| | - C Fonseca
- Unidade de Insuficiência Cardíaca, Serviço de Medicina III e Hospital Dia, Hospital São Francisco Xavier - Centro Hospitalar de Lisboa Ocidental, Lisboa, Portugal; NOVA Medical School, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisboa, Portugal
| | - N Bragança
- Serviço de Medicina III, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal
| | - S Carvalho
- Serviço de Cardiologia do Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - R Soares
- Serviço de Cardiologia do Hospital de Santa Marta, Lisboa, Portugal
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Silva-Cardoso J, Brás D, Canário-Almeida F, Andrade A, Oliveira L, Pádua F, Fonseca C, Bragança N, Carvalho S, Soares R, Santos JF. Neurohormonal modulation: The new paradigm of pharmacological treatment of heart failure. Revista Portuguesa de Cardiologia (English Edition) 2019. [DOI: 10.1016/j.repce.2019.05.001] [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] Open
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Almeida J, Costa J, Coelho P, Cea V, Galesio M, Noronha JP, Diniz MS, Prudêncio C, Soares R, Sala C, Fernandes R. Adipocyte proteome and secretome influence inflammatory and hormone pathways in glioma. Metab Brain Dis 2019; 34:141-152. [PMID: 30302719 DOI: 10.1007/s11011-018-0327-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 04/12/2018] [Accepted: 09/27/2018] [Indexed: 01/09/2023]
Abstract
Gliomas represent the most common primary malignant brain tumors in adults, with an extremely poor prognosis. Among several risk factors, lifestyle was also recently identified as a major risk factor for the development of primary glioma. In the present study, we explore the relationship between obesity and glioma in a cellular model. Thus, we have study the influence of adipocytes secretome on glioma cell line GL261. Using the 3T3-L1 adipocyte cell line, and its conditioned medium (adipokines-enriched medium), we showed that adipocyte-released factors relate with glioma angiogenic, growth, hormones and metabolic behavior by MALDI-TOF-MS and proteomic array analysis. In a first view, STI1, hnRNPs and PGK1 are under expressed on CGl. Similarly, both carbonic anhydrase and aldose reductase are even suppressed in glioma cells that grown under adipokines-enriched environment. Contrariwise, RFC1, KIF5C, ANXA2, N-RAP and RACK1 are overexpressed in GL261 cell the in the presence of the adipokines-enriched medium. We further identified the factors that are released by adipocyte cells, and revealed that several pro-inflammatory and angiogenic factors, such as IL-6, IL-11, LIF, PAI-1, TNF-α, endocan, HGF, VEGF IGF-I, were secreted to the medium into a high extent, whereas TIMP-1 and SerpinE1 were under expressed on CGl. This study discloses an interesting in vitro model for the study of glioma biology under a "obesity" environment, that can be explored for the understanding of cancer cells biology, for the search of biomarkers, prognostic markers and therapeutic approaches.
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Affiliation(s)
- J Almeida
- School of Health, Polytechnic of Porto, Porto, Portugal
- Department of Functional Biology and Health Sciences, University of Vigo, Vigo, Spain
| | - J Costa
- School of Health, Polytechnic of Porto, Porto, Portugal
| | - P Coelho
- School of Health, Polytechnic of Porto, Porto, Portugal
- Unit of Metabolism, Nutrition and Endocrinology, i3S, University of Porto, Porto, Portugal
| | - V Cea
- CNR Neuroscience Institute Milan, and Department of Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - M Galesio
- REQUIMTE, Department of Chemistry, Faculty of Sciences and Technology, Centre for Fine Chemistry and Biotechnology, NOVA University, Fort Lauderdale, FL, USA
| | - J P Noronha
- REQUIMTE, Department of Chemistry, Faculty of Sciences and Technology, Centre for Fine Chemistry and Biotechnology, NOVA University, Fort Lauderdale, FL, USA
| | - M S Diniz
- REQUIMTE, Department of Chemistry, Faculty of Sciences and Technology, Centre for Fine Chemistry and Biotechnology, NOVA University, Fort Lauderdale, FL, USA
| | - C Prudêncio
- School of Health, Polytechnic of Porto, Porto, Portugal
- Department of Functional Biology and Health Sciences, University of Vigo, Vigo, Spain
| | - R Soares
- Unit of Metabolism, Nutrition and Endocrinology, i3S, University of Porto, Porto, Portugal
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine, University of Porto, Porto, Portugal
| | - C Sala
- CNR Neuroscience Institute Milan, and Department of Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Rúben Fernandes
- School of Health, Polytechnic of Porto, Porto, Portugal.
- Unit of Metabolism, Nutrition and Endocrinology, i3S, University of Porto, Porto, Portugal.
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Mateus J, Gomes M, Soares R, Paulo S, Chora Â, Sebastião A, Xapelli S. From neural stem cells to oligodendrocytes: postnatal oligodendrogenesis as a target for MS therapy. Front Cell Neurosci 2019. [DOI: 10.3389/conf.fncel.2019.01.00047] [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: 11/13/2022] Open
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Ilhao Moreira R, Pereira Da Silva T, Goncalves A, Mano T, Mendonca T, Coutinho Cruz M, Morais L, Rodrigues I, Feliciano J, Abreu A, Soares R, Cruz Ferreira R. P6521Comparison of peak oxygen consumption and percent of predicted oxygen consumption for predicting prognosis in young and female heart failure patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6521] [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)
| | | | - A Goncalves
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - T Mano
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - T Mendonca
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | | | - L Morais
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - I Rodrigues
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - J Feliciano
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - A Abreu
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
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Carvalho Mendonca TJ, Abreu A, Rodrigues I, Portugal G, Rio P, Goncalves A, Santa Clara H, Santos V, Cunha P, Oliveira M, Soares R, Silva S, Ferreira R. P634Which variables can predict prognosis in heart failure patients after cardiac resynchronization? Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p634] [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)
| | - A Abreu
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - I Rodrigues
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - G Portugal
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - P Rio
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - A Goncalves
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | | | - V Santos
- University of Lisbon, Lisbon, Portugal
| | - P Cunha
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - M Oliveira
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - S Silva
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
| | - R Ferreira
- Hospital de Santa Marta, Department of Cardiology, Lisbon, Portugal
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Ilhao Moreira R, Pereira Da Silva T, Goncalves A, Reis J, Mano T, Coutinho Cruz M, Morais L, Rodrigues I, Modas Daniel P, Mendonca T, Feliciano J, Abreu A, Soares R, Cruz Ferreira R. 5221Impact of cardiorespiratory fitness in the obesity paradox in heart failure with reduced ejection fraction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.5221] [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)
| | | | - A Goncalves
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - J Reis
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - T Mano
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | | | - L Morais
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - I Rodrigues
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | | | - T Mendonca
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - J Feliciano
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - A Abreu
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Cardiology, Lisbon, Portugal
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Valentim Goncalves A, Abreu A, Soares R, Pereira-Da-Silva T, Feliciano J, Ilhao Moreira R, Rio P, Mendonca T, Coutinho Cruz M, Rodrigues I, Modas Daniel P, Aguiar Rosa S, Morais L, Cruz Ferreira R. P3751Sub-maximal cardiopulmonary exercise test in heart failure patients: value of ve/vco2 slope in 1-year risk stratification. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3751] [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)
| | - A Abreu
- Hospital de Santa Marta, Lisbon, Portugal
| | - R Soares
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | | | - P Rio
- Hospital de Santa Marta, Lisbon, Portugal
| | - T Mendonca
- Hospital de Santa Marta, Lisbon, Portugal
| | | | | | | | | | - L Morais
- Hospital de Santa Marta, Lisbon, Portugal
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Langley S, Uribe J, Uribe-Lewis S, Money-Kyrle J, Perna C, Khaksar S, Soares R, Laing R. Comparative Analysis of Clinical Outcomes and Procedural Costs between the Conventional Two-stage Technique and 4D Brachytherapy for Early Prostate Cancer. Clin Oncol (R Coll Radiol) 2018; 30:57-64. [DOI: 10.1016/j.clon.2017.09.006] [Citation(s) in RCA: 7] [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] [Received: 06/16/2017] [Revised: 09/05/2017] [Accepted: 09/12/2017] [Indexed: 10/18/2022]
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Ashton A, Soares R. Management of Benign Prostatic Enlargement: is There a Limit to our Resection? Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Silva T, Soares R, Feliciano J, Abreu A, Coutinho M, Moreira R, Rosa S, Almeida-Morais L, Rodrigues I, Portugal G, Teixeira P, Cruz Ferreira R. P1487The value for risk stratification of ventilatory efficiency measured in different moments during exercise and comparison to the gold standard peak oxygen consumption. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1487] [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: 11/14/2022] Open
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Silva T, Soares R, Feliciano J, Abreu A, Coutinho M, Moreira R, Rosa S, Almeida-Morais L, Rodrigues I, Portugal G, Monteiro A, Cruz Ferreira R. P6185How do peak oxygen consumption, ventilator efficiency slope and end-tidal carbon dioxide partial pressure perform in the short-, long- and very long-term risk stratification in heart failure? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6185] [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: 11/14/2022] Open
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Soares R, Ribeiro FF, Xapelli S, Genebra T, Ribeiro MF, Sebastião AM, Rodrigues CMP, Solá S. Tauroursodeoxycholic Acid Enhances Mitochondrial Biogenesis, Neural Stem Cell Pool, and Early Neurogenesis in Adult Rats. Mol Neurobiol 2017; 55:3725-3738. [PMID: 28534273 DOI: 10.1007/s12035-017-0592-5] [Citation(s) in RCA: 18] [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: 02/01/2017] [Accepted: 04/28/2017] [Indexed: 01/10/2023]
Abstract
Although neurogenesis occurs in restricted regions of the adult mammalian brain, neural stem cells (NSCs) produce very few neurons during ageing or after injury. We have recently discovered that the endogenous bile acid tauroursodeoxycholic acid (TUDCA), a strong inhibitor of mitochondrial apoptosis and a neuroprotective in animal models of neurodegenerative disorders, also enhances NSC proliferation, self-renewal, and neuronal conversion by improving mitochondrial integrity and function of NSCs. In the present study, we explore the effect of TUDCA on regulation of NSC fate in neurogenic niches, the subventricular zone (SVZ) of the lateral ventricles and the hippocampal dentate gyrus (DG), using rat postnatal neurospheres and adult rats exposed to the bile acid. TUDCA significantly induced NSC proliferation, self-renewal, and neural differentiation in the SVZ, without affecting DG-derived NSCs. More importantly, expression levels of mitochondrial biogenesis-related proteins and mitochondrial antioxidant responses were significantly increased by TUDCA in SVZ-derived NSCs. Finally, intracerebroventricular administration of TUDCA in adult rats markedly enhanced both NSC proliferation and early differentiation in SVZ regions, corroborating in vitro data. Collectively, our results highlight a potential novel role for TUDCA in neurologic disorders associated with SVZ niche deterioration and impaired neurogenesis.
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Affiliation(s)
- Rita Soares
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.,Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Instituto de Medicina Molecular (iMM), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Filipa F Ribeiro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Instituto de Medicina Molecular (iMM), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Sara Xapelli
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Instituto de Medicina Molecular (iMM), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Tânia Genebra
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Maria F Ribeiro
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Instituto de Medicina Molecular (iMM), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Cecília M P Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Susana Solá
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
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Incio J, Suboj P, Chin S, Liu H, Soares R, Boucher Y, Fukumura D, Jain R. Proffered Paper: Obesity-induced inflammation and desmoplasia promote pancreatic cancer progression and resistance to chemotherapy. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61017-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rodrigues J, Soares R, Bonito N, Marques M, Jacinto P, Ribeiro J, Valido F, Gervásio H. P-133 Assessment of sexual dysfunction in rectal cancer survivors. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Duarte C, Costa T, Carneiro C, Soares R, Jitariu A, Cardoso S, Piedade M, Bexiga R, Freitas P. Semi-Quantitative Method for Streptococci Magnetic Detection in Raw Milk. Biosensors (Basel) 2016; 6:19. [PMID: 27128950 PMCID: PMC4931479 DOI: 10.3390/bios6020019] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 04/15/2016] [Accepted: 04/21/2016] [Indexed: 12/24/2022]
Abstract
Bovine mastitis is the most costly disease for dairy farmers and the most frequent reason for the use of antibiotics in dairy cattle; thus, control measures to detect and prevent mastitis are crucial for dairy farm sustainability. The aim of this study was to develop and validate a sensitive method to magnetically detect Streptococcus agalactiae (a Group B streptococci) and Streptococcus uberis in raw milk samples. Mastitic milk samples were collected aseptically from 44 cows with subclinical mastitis, from 11 Portuguese dairy farms. Forty-six quarter milk samples were selected based on bacterial identification by conventional microbiology. All samples were submitted to PCR analysis. In parallel, these milk samples were mixed with a solution combining specific antibodies and magnetic nanoparticles, to be analyzed using a lab-on-a-chip magnetoresistive cytometer, with microfluidic sample handling. This paper describes a point of care methodology used for detection of bacteria, including analysis of false positive/negative results. This immunological recognition was able to detect bacterial presence in samples spiked above 100 cfu/mL, independently of antibody and targeted bacteria used in this work. Using PCR as a reference, this method correctly identified 73% of positive samples for streptococci species with an anti-S. agalactiae antibody, and 41% of positive samples for an anti-GB streptococci antibody.
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Affiliation(s)
- Carla Duarte
- INESC-MN Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias, Rua Alves Redol 9, 1000-029 Lisbon, Portugal.
- CIISA at Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisbon, Portugal.
| | - Tiago Costa
- INESC-ID Instituto de Engenharia de Sistemas e Computadores-Investigação e Desenvolvimento, Rua Alves Redol 9, 1000-029 Lisbon, Portugal.
| | - Carla Carneiro
- CIISA at Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisbon, Portugal.
| | - Rita Soares
- INESC-MN Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias, Rua Alves Redol 9, 1000-029 Lisbon, Portugal.
| | - Andrei Jitariu
- INESC-MN Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias, Rua Alves Redol 9, 1000-029 Lisbon, Portugal.
- Visiting from the National Institute of Research and Development for Technical Physics, 47 Mangeron Blvd, Iasi 700050, Romania.
| | - Susana Cardoso
- INESC-MN Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias, Rua Alves Redol 9, 1000-029 Lisbon, Portugal.
- Instituto Superior Técnico, Physics Department, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Moisés Piedade
- INESC-ID Instituto de Engenharia de Sistemas e Computadores-Investigação e Desenvolvimento, Rua Alves Redol 9, 1000-029 Lisbon, Portugal.
| | - Ricardo Bexiga
- CIISA at Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. da Universidade Técnica, 1300-477 Lisbon, Portugal.
| | - Paulo Freitas
- INESC-MN Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias, Rua Alves Redol 9, 1000-029 Lisbon, Portugal.
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, 4715-330 Braga, Portugal.
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Sousa M, Machado V, Costa R, Figueira ME, Sepodes B, Barata P, Ribeiro L, Soares R. Red Raspberry Phenols Inhibit Angiogenesis: A Morphological and Subcellular Analysis Upon Human Endothelial Cells. J Cell Biochem 2016; 117:1604-12. [PMID: 26590362 DOI: 10.1002/jcb.25452] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 10/09/2015] [Accepted: 11/19/2015] [Indexed: 12/14/2022]
Abstract
Polyphenols are a class of natural compounds whose potential as antioxidant, anti-inflammatory, and anti-angiogenesis has been reported in many pathological conditions. Red raspberry extract, rich in polyphenols, has been reported to exert anti-inflammatory effects and prevent cell proliferation in distinct animal models. However, the signaling pathways involved remain unknown. Herein, we used human microvascular endothelial cells (HMVECs) to determine the influence of red raspberry phenolic compound extract concentrations, ranging from 10 to 250 µg gallic acid equivalents (GAE)/mL, on endothelium viability (MTS assay), proliferation (BrdU incorporation), migration (injury assay), and capillary-like structures formation (Matrigel assay). Protein expression in cell lysates was determined by Western blot analysis. We showed that red raspberry extracts reduced cell viability (GI50 = 87,64 ± 6,59 μg GAE/mL) and proliferation in a dose-dependent manner. A significant abrogation of cells ability to migrate to injured areas, even at low concentrations, was observed by injury assay. Cell assembly into capillary-like structures on Matrigel also decreased in a dose dependent-manner for higher extract concentrations, as well as the number of branching points per unit of area. Protein expression analysis showed a dose-dependent decrease in Phospho-VEGFR2 expression, implying abrogation of VEGF signaling activity. We also showed for the first time that red raspberry phenolic compounds induce the rearrangement of filamentous actin cytoskeleton, with an isotropy increase found for higher testing concentrations. Taken together, our findings corroborate the anti-angiogenic potential of red raspberry phenolic compounds and provide new insights into their mode of action upon endothelium. J. Cell. Biochem. 117: 1604-1612, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- M Sousa
- Department of Biochemistry, Faculty of Medicine, Al Prof Hernâni Monteiro, 4200-319 Porto, I3S, Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - V Machado
- Department of Biochemistry, Faculty of Medicine, Al Prof Hernâni Monteiro, 4200-319 Porto, I3S, Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - R Costa
- Department of Biochemistry, Faculty of Medicine, Al Prof Hernâni Monteiro, 4200-319 Porto, I3S, Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - M E Figueira
- Department of Pharmacology, Faculty of Pharmacy, University of Lisbon, AV Prof Gama Pinto, 1649-003, Lisbon
| | - B Sepodes
- Department of Pharmacology, Faculty of Pharmacy, University of Lisbon, AV Prof Gama Pinto, 1649-003, Lisbon
| | - P Barata
- Faculty of Health Sciences, University Fernando Pessoa, Pr Nove de abril, 4249-004, Porto; Pharmacy Unit, Central Hospital São João, Al Prof Hernâni Monteiro, Pr Nove de abril, 4200-319, Porto
| | - L Ribeiro
- Department of Medical Education and Simulation, Faculty of Medicine, Al Prof Hernâni Monteiro, 4200-319 Porto; I3S, Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - R Soares
- Department of Biochemistry, Faculty of Medicine, Al Prof Hernâni Monteiro, 4200-319 Porto, I3S, Instituto de Investigação e Inovação em Saúde, Porto, Portugal
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50
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Rio P, Pereira-Da-Silva T, Abreu A, Filipe C, Soares R, Portugal G, Alves T, Silva S, Mimoso I, Cruz Ferreira R. Modulating effect of cardiac rehabilitation on autonomic nervous system function in patients with coronary artery disease. Acta Cardiol 2016; 71:717-723. [PMID: 27920460 DOI: 10.2143/ac.71.6.3178191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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