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Cordeiro R, Alvites RD, Sousa AC, Lopes B, Sousa P, Maurício AC, Alves N, Moura C. Cellulose-Based Scaffolds: A Comparative Study for Potential Application in Articular Cartilage. Polymers (Basel) 2023; 15:polym15030781. [PMID: 36772083 PMCID: PMC9919712 DOI: 10.3390/polym15030781] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/01/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
Osteoarthritis is a highly prevalent disease worldwide that leads to cartilage loss. Tissue engineering, involving scaffolds, cells, and stimuli, has shown to be a promising strategy for its repair. Thus, this study aims to manufacture and characterise different scaffolds with poly(ε-caprolactone) (PCL) with commercial cellulose (microcrystalline (McC) and methyl cellulose (MC) or cellulose from agro-industrial residues (corncob (CcC)) and at different percentages, 1%, 2%, and 3%. PCL scaffolds were used as a control. Morphologically, the produced scaffolds presented porosities within the desired for cell incorporation (57% to 65%). When submitted to mechanical tests, the incorporation of cellulose affects the compression resistance of the majority of scaffolds. Regarding tensile strength, McC2% showed the highest values. It was proven that all manufactured scaffolds suffered degradation after 7 days of testing because of enzymatic reactions. This degradation may be due to the dissolution of PCL in the organic solvent. Biological tests revealed that PCL, CcC1%, and McC3% are the best materials to combine with human dental pulp stem/stromal cells. Overall, results suggest that cellulose incorporation in PCL scaffolds promotes cellular adhesion/proliferation. Methyl cellulose scaffolds demonstrated some advantageous compressive properties (closer to native cartilaginous tissue) to proceed to further studies for application in cartilage repair.
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Affiliation(s)
- Rachel Cordeiro
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal
- Veterinary Clinics Department, Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto (UP), Rua de Jorge Viterbo Ferreira, No. 228, 4050-313 Porto, Portugal
| | - Rui D. Alvites
- Veterinary Clinics Department, Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto (UP), Rua de Jorge Viterbo Ferreira, No. 228, 4050-313 Porto, Portugal
- Animal Science Studies Centre (CECA), Agroenvironment, Technologies and Sciences Institute (ICETA), University of Porto, Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Ana C. Sousa
- Veterinary Clinics Department, Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto (UP), Rua de Jorge Viterbo Ferreira, No. 228, 4050-313 Porto, Portugal
- Animal Science Studies Centre (CECA), Agroenvironment, Technologies and Sciences Institute (ICETA), University of Porto, Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Bruna Lopes
- Veterinary Clinics Department, Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto (UP), Rua de Jorge Viterbo Ferreira, No. 228, 4050-313 Porto, Portugal
- Animal Science Studies Centre (CECA), Agroenvironment, Technologies and Sciences Institute (ICETA), University of Porto, Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Patrícia Sousa
- Veterinary Clinics Department, Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto (UP), Rua de Jorge Viterbo Ferreira, No. 228, 4050-313 Porto, Portugal
- Animal Science Studies Centre (CECA), Agroenvironment, Technologies and Sciences Institute (ICETA), University of Porto, Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Ana C. Maurício
- Veterinary Clinics Department, Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto (UP), Rua de Jorge Viterbo Ferreira, No. 228, 4050-313 Porto, Portugal
- Animal Science Studies Centre (CECA), Agroenvironment, Technologies and Sciences Institute (ICETA), University of Porto, Rua D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal
- Associate Laboratory for Advanced Production and Intelligent Systems (ARISE), 4050-313 Porto, Portugal
- Correspondence: (N.A.); (C.M.); Tel.: +351-244569441 (C.M.)
| | - Carla Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal
- Associate Laboratory for Advanced Production and Intelligent Systems (ARISE), 4050-313 Porto, Portugal
- Applied Research Institute (i2A), Polytechnic Institute of Coimbra, Rua da Misericórdia, Lagar dos Cortiços–S. Martinho do Bispo, 3045-093 Coimbra, Portugal
- Correspondence: (N.A.); (C.M.); Tel.: +351-244569441 (C.M.)
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Marques T, Fernandes C, Moura C, Miguéis A. Prevalence of acute otitis media in children younger than four years. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab120.054] [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: 11/14/2022] Open
Abstract
Abstract
Background
Acute otitis media (AOM) is one of the most common diseases in childhood, affecting approximately 50% of all children. The most common age range to develop AOM is 3–24 months, due to a current or recent upper respiratory tract infection, which induces the eustachian tube to develop fluid or secretion from the middle ear inflammation. The acute onset of symptoms in older children is characterized by otalgia and rubbing of the ear, however, AOM in younger children include nonspecific symptoms such as fever, irritability, or poor feeding, being unreliable guides to the diagnosis. Thus, the underdiagnosis of AOM can lead to serious complications include acute mastoiditis or meningitis. Hence, the study aims to investigate the prevalence of AOM in children younger than four years.
Methods
A cross-sectional study was conducted in a kindergarten, being enrolled children between 1 and 4 years. The protocol included otoscopy and tympanometry.
Results
A total of 23 children with a mean age of 2-year-old (SD = 0.88) were evaluated, with 17 children (34.8%) diagnosed with AOM, of whom 2 (15.4%) had unilateral alterations and 11 (84.6%) bilateral alterations.
Conclusions
AOM is one of the main childhood pathologies, affecting approximately 34.8% of younger children. Success in decreasing prevalence of AOM will depend on prevention of nasopharyngeal pathogen colonization, as well as decrease of viral upper respiratory tract infection, which can be reduced with nasal saline irrigation, a clinical and economic therapeutic approach.
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Affiliation(s)
- Tatiana Marques
- Audiology Department, Coimbra Health School, Polytechnic Institute of Coimbra, Coimbra, Portugal
- Institute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, Portugal
| | - Carolina Fernandes
- Department of Education, Coimbra College of Education, Coimbra, Portugal
| | - Carla Moura
- Department of Genetics, University of Porto, Faculty of Medicine, Portugal
- São João University Hospital Centre, Porto, Portugal
- I3S: Institute for Research and Innovation in Health/Instituto de Investigação e Inovação em Saúde, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
| | - António Miguéis
- University Clinic of Otorhinolaryngology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Ângelo DF, Wang Y, Morouço P, Monje F, Mónico L, González-Garcia R, Moura C, Alves N, Sanz D, Gao J, Sousa R, Neto L, Faísca P, Salvado F, López Peña M, Permuy M, Munñoz F. A randomized controlled preclinical trial on 3 interposal temporomandibular joint disc implants: TEMPOJIMS-Phase 2. J Tissue Eng Regen Med 2021; 15:852-868. [PMID: 34323386 DOI: 10.1002/term.3230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/31/2021] [Accepted: 07/22/2021] [Indexed: 01/03/2023]
Abstract
The effort to develop an effective and safe temporomandibular joint (TMJ) disc substitute has been one of the mainstreams of tissue engineering. Biodegradable customized scaffolds could approach safety and effectiveness to regenerate a new autologous disc, rather than using non-biodegradable materials. However, it is still technically challenging to mimic the biomechanical properties of the native disc with biodegradable polymers. In this study, new 3D tailored TMJ disc implants were developed: (1) Poly(glycerol sebacate) (PGS) scaffold reinforced with electrospun Poly(εcaprolactone) (PCL) fibers on the outer surface (PGS+PCL); (2) PCL and polyethylene glycol diacrylate (PEGDA) (PCL+PEGDA); and (3) PCL. The TMJ implants were tested in a randomized preclinical trial, conducted in 24 black Merino sheep TMJ, perfoming bilateral interventions. Histologic, imaging, and kinematics analysis was performed. No statistical changes were observed between the PGS+PCL disc and the control group. The PCL+PEGDA and PCL groups were associated with statistical changes in histology (p = 0.004 for articular cartilage mid-layer; p = 0.019 for structure changes and p = 0.017 for cell shape changes), imaging (p = 0.027 for global appreciation) and dangerous material fragmentation was observed. No biomaterial particles were observed in the multi-organ analysis in the different groups. The sheep confirmed to be a relevant animal model for TMJ disc surgery and regenerative approaches. The PCL and PCL+PEGDA discs presented a higher risk to increase degenerative changes, due to material fragmentation. None of the tested discs regenerate a new autologous disc, however, PGS+PCL was safe, demonstrated rapid resorption, and was capable to prevent condyle degenerative changes.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, Lisboa, Portugal.,Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal.,Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | | | | | - Florencio Monje
- Complejo Hospitalario Universitario de Badajoz, Badajoz, Spain
| | | | | | - Carla Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - David Sanz
- Instituto Português da Face, Lisboa, Portugal
| | - Jin Gao
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Rita Sousa
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Lia Neto
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Pedro Faísca
- Gulbenkian Institute of Science, Oeiras, Portugal
| | | | | | - Maria Permuy
- University of Santiago de Compostela-Lugo Campus, Lugo, Spain
| | - Fernando Munñoz
- University of Santiago de Compostela-Lugo Campus, Lugo, Spain
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Trindade D, Cordeiro R, José HC, Ângelo DF, Alves N, Moura C. Biological Treatments for Temporomandibular Joint Disc Disorders: Strategies in Tissue Engineering. Biomolecules 2021; 11:biom11070933. [PMID: 34201698 PMCID: PMC8301995 DOI: 10.3390/biom11070933] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 01/22/2023] Open
Abstract
The temporomandibular joint (TMJ) is an important structure for the masticatory system and the pathologies associated with it affect a large part of the population and impair people's lifestyle. It comprises an articular disc, that presents low regeneration capacities and the existing clinical options for repairing it are not effective. This way, it is imperative to achieve a permanent solution to guarantee a good quality of life for people who suffer from these pathologies. Complete knowledge of the unique characteristics of the disc will make it easier to achieve a successful tissue engineering (TE) construct. Thus, the search for an effective, safe and lasting solution has already started, including materials that replace the disc, is currently growing. The search for a solution based on TE approaches, which involve regenerating the disc. The present work revises the TMJ disc characteristics and its associated diseases. The different materials used for a total disc replacement are presented, highlighting the TE area. A special focus on future trends in the field and part of the solution for the TMJ problems described in this review will involve the development of a promising engineered disc approach through the use of decellularized extracellular matrices.
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Affiliation(s)
- Daniela Trindade
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal; (D.T.); (R.C.); (D.F.Â.)
| | - Rachel Cordeiro
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal; (D.T.); (R.C.); (D.F.Â.)
| | | | - David Faustino Ângelo
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal; (D.T.); (R.C.); (D.F.Â.)
- Instituto Português da Face, 1050-227 Lisboa, Portugal;
- Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal; (D.T.); (R.C.); (D.F.Â.)
- Correspondence: (N.A.); (C.M.); Tel.: +351-24-456-9441 (C.M.)
| | - Carla Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028 Marinha Grande, Portugal; (D.T.); (R.C.); (D.F.Â.)
- Correspondence: (N.A.); (C.M.); Tel.: +351-24-456-9441 (C.M.)
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5
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Vallejo M, Cordeiro R, Dias PAN, Moura C, Henriques M, Seabra IJ, Malça CM, Morouço P. Recovery and evaluation of cellulose from agroindustrial residues of corn, grape, pomegranate, strawberry-tree fruit and fava. BIORESOUR BIOPROCESS 2021; 8:25. [PMID: 38650204 PMCID: PMC10992815 DOI: 10.1186/s40643-021-00377-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 03/16/2021] [Indexed: 11/10/2022] Open
Abstract
Considering the expected increasing demand for cellulose fibers in the near future and that its major source is wood pulp, alternative sources such as vegetable wastes from agricultural activities and agro-food industries are currently being sought to prevent deforestation. In the present study, cellulose was successfully isolated from six agroindustrial residues: corncob, corn husk, grape stalk, pomegranate peel, marc of strawberry-tree fruit and fava pod. Cellulose fibers were characterized by Fourier-transform infrared spectroscopy, thermogravimetric analysis, stereomicroscopy and scanning electron microscopy (SEM). Despite the evident morphological differences among the extracted celluloses, results revealed similar compositional and thermal properties with the wood-derived commercial microcrystalline cellulose used as a control. Trace amounts of lignin or hemicellulose were detected in all cellulose samples, with the exception of corncob cellulose, that exhibited the greatest extraction yield (26%) and morphological similarities to wood-derived microcrystalline cellulose, visible through SEM. Furthermore, corncob cellulose was found to have thermal properties (TOnset of 307.17 °C, TD of 330.31 °C, and ΔH of 306.04 kJ/kg) suitable for biomedical applications.
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Affiliation(s)
- Mariana Vallejo
- College of Agriculture, Polytechnic of Coimbra, 3045-093, Coimbra, Portugal
| | - Rachel Cordeiro
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028, Marinha Grande, Portugal
- Chemistry Department, University of Coimbra, 3004-531, Coimbra, Portugal
| | - Paulo A N Dias
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal
| | - Carla Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028, Marinha Grande, Portugal
| | - Marta Henriques
- College of Agriculture, Polytechnic of Coimbra, 3045-093, Coimbra, Portugal
| | - Inês J Seabra
- Bioengineering Department, Lehigh University, Bethlehem, PA, USA
| | - Cândida Maria Malça
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, 2430-028, Marinha Grande, Portugal
- Institute of Engineering, Polytechnic of Coimbra, 3045-093, Coimbra, Portugal
| | - Pedro Morouço
- ESECS, Polytechnic of Leiria, 2411-901, Leiria, Portugal.
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Veloso SRS, Jervis PJ, Silva JFG, Hilliou L, Moura C, Pereira DM, Coutinho PJG, Martins JA, Castanheira EMS, Ferreira PMT. Supramolecular ultra-short carboxybenzyl-protected dehydropeptide-based hydrogels for drug delivery. Mater Sci Eng C Mater Biol Appl 2021; 122:111869. [PMID: 33641890 DOI: 10.1016/j.msec.2021.111869] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/15/2020] [Accepted: 01/05/2021] [Indexed: 01/29/2023]
Abstract
Self-assembled peptide-based hydrogels are promising materials for biomedical research owing to biocompatibility and similarity to the extracellular matrix, amenable synthesis and functionalization and structural tailoring of the rheological properties. Wider developments of self-assembled peptide-based hydrogels in biomedical research and clinical translation are hampered by limited commercial availability allied to prohibitive costs. In this work a focused library of Cbz-protected dehydrodipeptides Cbz-L-Xaa-Z-ΔPhe-OH (Xaa= Met, Phe, Tyr, Ala, Gly) was synthesised and evaluated as minimalist hydrogels. The Cbz-L-Met-Z-ΔPhe-OH and Cbz-L-Phe-Z-ΔPhe-OH hydrogelators were comprehensively evaluated regarding molecular aggregation and self-assembly, gelation, biocompatibility and as drug carriers for delivery of the natural compound curcumin and the clinically important antitumor drug doxorubicin. Drug release profiles and FRET studies of drug transport into small unilamellar vesicles (as biomembrane models) demonstrated that the Cbz-protected dehydropeptide hydrogels are effective nanocarriers for drug delivery. The expedite and scalable synthesis (in 3 steps), using commercially available reagents and amenable reaction conditions, makes Cbz-protected dehydrodipeptide hydrogels, widely available at affordable cost to the research community.
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Affiliation(s)
- Sérgio R S Veloso
- Centre of Physics (CFUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Peter J Jervis
- Centre of Chemistry (CQUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; REQUIMTE/LAQV, Lab. of Pharmacognosy, Dep. of Chemistry, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Joana F G Silva
- Centre of Physics (CFUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Loic Hilliou
- Institute for Polymers and Composites/I3N, Department of Polymer Engineering, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - C Moura
- Centre of Physics (CFUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - David M Pereira
- REQUIMTE/LAQV, Lab. of Pharmacognosy, Dep. of Chemistry, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Paulo J G Coutinho
- Centre of Physics (CFUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - J A Martins
- Centre of Chemistry (CQUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | | | - Paula M T Ferreira
- Centre of Chemistry (CQUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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Ferreira SC, Gaspar C, Dionísio J, Moura C, Almodovar T. Drug reaction with eosinophilia and systemic symptoms syndrome associated with osimertinib. Pulmonology 2020; 27:266-267. [PMID: 32782225 DOI: 10.1016/j.pulmoe.2020.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/23/2020] [Accepted: 07/12/2020] [Indexed: 10/23/2022] Open
Affiliation(s)
- S C Ferreira
- Serviço de Oncologia Médica, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal.
| | - C Gaspar
- Serviço de Pneumologia, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal
| | - J Dionísio
- Serviço de Pneumologia, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal
| | - C Moura
- Serviço de Dermatologia, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal
| | - T Almodovar
- Serviço de Pneumologia, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal
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Moura C, Trindade D, Vieira M, Francisco L, Ângelo DF, Alves N. Multi-Material Implants for Temporomandibular Joint Disc Repair: Tailored Additive Manufacturing Production. Front Bioeng Biotechnol 2020; 8:342. [PMID: 32373604 PMCID: PMC7186357 DOI: 10.3389/fbioe.2020.00342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/27/2020] [Indexed: 12/22/2022] Open
Abstract
Temporomandibular disorders (TMD) affect a substantial percentage of the population, and the resources spent on their treatment are considerable. Despite the worldwide efforts around Tissue Engineering of the temporomandibular joint (TMJ) disc, a proper implant offering a long-term solution for TMD was not yet developed. To contribute to these efforts, this work is focused on the research and development of implants for TMJ disc regeneration. Scaffolds and hydrogels mimicking the TMJ disc of black Merino sheep were produced using different materials, poly(ε-caprolactone) (PCL) and poly(ethylene glycol) diacrylate (PEGDA), and as a multi-material structure. Different parameters of the scaffold manufacturing were assessed: the influence of processing temperatures, filament diameter, and biological environment. Moreover, two multi-material approaches were also assessed, scaffold with a hydrogel shell and scaffold with a hydrogel core. It was found that increasing temperature, the scaffolds' porosity decreases, increasing their compressive modulus. Decreasing the filament size (300 to 200 μm) decreases the compressive modulus to almost half of the initial value. Scaffolds with 200 μm filaments are the ones with a closer modulus to the native disc and their properties are maintained under hydrated conditions. The introduction of a hydrogel core in these scaffolds presented better mechanical properties to TMJ disc substitution.
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Affiliation(s)
- Carla Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Daniela Trindade
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Milena Vieira
- ESTG – School of Technology and Management, Polytechnic Institute of Leiria, Leiria, Portugal
- SEG-CEMMPRE – Department of Mechanical Engineering, University of Coimbra, Coimbra, Portugal
| | - Luís Francisco
- ESTG – School of Technology and Management, Polytechnic Institute of Leiria, Leiria, Portugal
| | - David Faustino Ângelo
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
- Instituto Português da Face, Lisbon, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
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Nejo P, Bexiga C, Fragoso S, Mayer A, Santos S, Louro P, Luis A, Moura C, Clara A, Vaz F. Abstract P6-08-36: Uptake of preventive surgeries in a prospective cohort of BRCA1/2 healthy women. Cancer Res 2020. [DOI: 10.1158/1538-7445.sabcs19-p6-08-36] [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: 11/16/2022]
Abstract
Abstract
PURPOSE
Previous studies referred to uptake of preventive surgeries (PS) in BRCA1/2 healthy carriers in ages older than recommended (35yrs). Since our population has a higher prevalence of BRCA2 mutations (usually associated with an older age at Breast Cancer diagnosis) we proposed to study ages and type of preventive surgeries uptaken by BRCA1/2 women included in prospective follow up.
PATIENTS AND METHODS
Review of all healthy (without a previous cancer diagnosis) BRCA1/2 carriers included in our program from January 2000 to June 2019. Follow-up started after genetic testing. Men were excluded from this analysis.
RESULTS
A total of 5504 cases (4021 index, 1483 relatives) consented for BRCA1/2 testing. We identified 238 healthy BRCA1/2 carriers (BRCA2:158 (66.4%) vs BRCA1 80 (33.6%). Median age at genetic diagnosis was 38.9 yrs (16-78). With a median follow up of 4yrs, bilateral adnexectomy (BA) was the most frequent PS observed (45 BRCA2 and 28 BRCA1 cases) with 15/45 % and 6/28% undergoing BA and bilateral mastectomy (BM) simultaneously. Bilateral mastectomy was uptaken by 14% BRCA2 women and 10% BRCA1 women. Median ages for PS were: BRCA2-AB: 47,4 (28-71), BRCA1-AB: 46.7 (37-59); BRCA2-BM: 36.6 (31-52) and BRCA1-BM:42.5 (30-55). Isolated BM was observed in 7 BRCA2 cases and 2 BRCA1 cases. Most of women submitted to BA, also underwent total hysterectomy (HT): 65% for BRCA2 and 61% BRCA1. Most cases (88% non-adherent) adhere to radiological surveillance, 111/238 with annual breast S MRI and mammography. All pts submitted to BM are prescribed at least one breast MRI to check for remaining breast tissue.
CONCLUSION
Our data reveal that even if, in general, BRCA1/2 women uptake preventive surgeries at a later age that recommended, we observed a strong adherence to radiological (most with breast MRI) surveillance. BA is the PS most frequently observed but, surprisingly for healthy women, most cases also underwent TH. BRCA2 healthy women uptaken bilateral mastectomy at an earlier age than BRCA1 women. It´s possible that BRCA1 women, when deciding for BM also decided for BA.
Citation Format: Priscila Nejo, Catarina Bexiga, S. Fragoso, A Mayer, S Santos, P Louro, A Luis, C Moura, Ana Clara, Fatima Vaz. Uptake of preventive surgeries in a prospective cohort of BRCA1/2 healthy women [abstract]. In: Proceedings of the 2019 San Antonio Breast Cancer Symposium; 2019 Dec 10-14; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2020;80(4 Suppl):Abstract nr P6-08-36.
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Affiliation(s)
- Priscila Nejo
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | | | - S. Fragoso
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | - A Mayer
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | - S Santos
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | - P Louro
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | - A Luis
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | - C Moura
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | - Ana Clara
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
| | - Fatima Vaz
- Instituto Portugês de Oncologia Lisboa, Lisbon, Portugal
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Batista F, Melo I, Pereira L, Lima A, Bashal A, Costa J, Magalhães J, Lima F, Moura C, Garcia M, Moura E. Screening of the Au:Pt Atomic Ratio Supported in SrCO3: Effects on the Performance of the Solvent-Free Oxidation of Benzyl Alcohol. J BRAZIL CHEM SOC 2020. [DOI: 10.21577/0103-5053.20190207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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11
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Ferreira AF, Moura C, Rodrigues PG, Saraiva FA, Barros AS, Areias JC, Leite-Moreira AF, Falcao-Pires I. P4643Pulmonary hypertension incidence is higher than systemic arterial hypertension in children after aortic coarctation repair. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1025] [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
Coarctation of the aorta (CoA) is characterized by diffuse arteriopathy which can persist to upward of the aortic isthmus, even after successful surgical correction. This arteriopathy can also occur in the pulmonary vasculature, leading to pulmonary hypertension (PH), a strong risk factor of poor prognosis in CoA population.
Purpose
The purpose of this study was to determine the incidence of systemic and pulmonary hypertension in a CoA paediatric population after surgical repair, as well as the impact of PH in right ventricular function.
Methods
This cross-sectional study included children after successful surgical repair of the CoA in a tertiary centre [1996, 2009] up to the first year of age. Children with other cardiac structural lesions or recoarctation were excluded. Systemic arterial hypertension was defined as blood pressure in the 95th percentile or higher. PH was considered if the estimated pulmonary systolic arterial pressure (PSAP) was higher than 30mmHg. Pulse wave velocity, ambulatory 24 hours blood pressure monitoring, echocardiographic assessment of right ventricle (RV) and blood tests were performed 11±4 years after surgical procedure. Echocardiographic variables were normalized and evaluated by z-scores. One sample t test or sign test was used to estimate the deviation of measured/observed values from the normality/expected values (defined by z-score=0).
Results
We included 38 children with a mean age of 12±4 years (63% male). Late arterial hypertension was diagnosed in 29% of the children and PH incidence was 68% with a mean PSAP of 37±5mmHg. The mean of A' wave (z-score: 0.34±0.93, p=0.030) and median of E/E' ratio (z-score: 0.46 [−1.32; 3.68], p=0.004) z-scores were increased comparing with expected normal values in paediatric population. Moreover, E' wave (z-score: −0.35±0.98, p=0.034) and RV index of myocardial performance (z-score: −0.20±0.41, p=0.006) were decreased. Regarding RV systolic function, TAPSE z-score was significantly increased (z-score: 2.06±2.33, p<0.001), being outside the z-score normal range.
Conclusion
Children submitted to CoA surgical repair before the first year of life showed a higher PH incidence than late systemic hypertension occurrence. Also, they already present with significant RV functional abnormalities when compared to the normal paediatric population. These abnormalities can underlie pulmonary vascular remodelling after left ventricular pressure overload in CoA population that seems irreversible after pressure overload relief.
Acknowledgement/Funding
AFF are supported by FCT (SFRH/BD/138925/2018)
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Affiliation(s)
- A F Ferreira
- Faculty of Medicine University of Porto, Surgery and Physiology, Cardiovascular R&D Unit, Porto, Portugal
| | - C Moura
- Sao Joao Hospital, Pediatric Cardiology, Porto, Portugal
| | - P G Rodrigues
- Faculty of Medicine University of Porto, Surgery and Physiology, Cardiovascular R&D Unit, Porto, Portugal
| | - F A Saraiva
- Faculty of Medicine University of Porto, Surgery and Physiology, Cardiovascular R&D Unit, Porto, Portugal
| | - A S Barros
- Faculty of Medicine University of Porto, Surgery and Physiology, Cardiovascular R&D Unit, Porto, Portugal
| | - J C Areias
- Sao Joao Hospital, Pediatric Cardiology, Porto, Portugal
| | - A F Leite-Moreira
- Faculty of Medicine University of Porto, Surgery and Physiology, Cardiovascular R&D Unit, Porto, Portugal
| | - I Falcao-Pires
- Faculty of Medicine University of Porto, Surgery and Physiology, Cardiovascular R&D Unit, Porto, Portugal
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12
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Adrião M, Maia A, Magalhães A, Moura C, Alegrete N, Casimiro de Andrade D, Correia C, Rebelo J, Tavares M, Gonçalves E, Guardiano M. Trissomia 21: Uma Perspetiva Multidisciplinar. Gaz Med 2019. [DOI: 10.29315/gm.v6i2.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
INTRODUÇÃO: A trissomia 21 (T21) é a cromossomopatia mais frequente, independentemente do género, etnia ou classe social. Os recém-nascidos apresentam alterações fenotípicas e eventualmente malformações congénitas. O objetivo foi criar um artigo de revisão acessível e ajustado à prática clínica do pediatra para seguimento de crianças e jovens com T21, através de uma visão holística dos cuidados de saúde.
METODOLOGIA: Pesquisa dos artigos publicados em diferentes áreas, incluindo diretrizes de várias associações pediátricas. Revisão da literatura por especialistas em diferentes especialidades médicas com prática no seguimento de crianças e jovens com T21.
CONCLUSÃO: Através de uma avaliação e intervenção holísticas é possível continuar a melhorar os cuidados de saú-de da população pediátrica com T21. Isso reflete-se não só através do aumento da esperança média de vida, mas também na melhoria da qualidade de vida experienciada em todas as idades.
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13
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Elharram M, Moura C, Abrahamowicz M, Bernatsky S, Behlouli H, Raparelli V, Pilote L. NOVEL GLUCOSE LOWERING AGENTS ARE ASSOCIATED WITH A LOWER RISK OF CARDIOVASCULAR AND ADVERSE EVENTS IN TYPE 2 DIABETES: A POPULATION BASED ANALYSIS. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.219] [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: 11/16/2022] Open
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14
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Grangeia A, Alves S, Gonçalves L, Gregório I, Santos AC, Barros H, Barros A, Carvalho F, Moura C. Spectrum of CFTR gene sequence variants in a northern Portugal population. Pulmonology 2018; 24:3-9. [PMID: 29589582 DOI: 10.1016/j.pulmoe.2017.12.007] [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] [Received: 05/05/2017] [Revised: 10/25/2017] [Accepted: 12/03/2017] [Indexed: 11/15/2022] Open
Abstract
In Portugal, the spectrum of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene variants is not known. The main objective of this work was to determine the type and frequency of CFTR variants in a sample from northern Portugal by the complete analysis of the CFTR coding sequencing performed in 512 Portuguese children. A total of 30 different CFTR sequence variants, already reported as cystic fibrosis (CF) or CFTR related disorders variants, were detected. Ninety-two children (18.0%; 95%CI: 14.7-21.6) were found to be carriers of one sequence variant and 8 (1.6%; 95%CI: 0.7-3.1) had two sequence variants. Taking into consideration only variants that may cause CF when combined with a pathogenic CF variant, the CF pathogenic variant carrier frequency was 3.3% (95%CI: 1.9-5.3). One (0.2%; 95%CI: 0.01-0.7) child presented two CF pathogenic variants. CONCLUSIONS The majority of CFTR variants detected have been associated with a less severe CF phenotype. A wide spectrum of CFTR variants was identified, confirming the highest CFTR allelic heterogeneity previously reported in Mediterranean country. Additionally, better knowledge about the CFTR sequence variation spectrum may contribute to more efficient genetic testing in the Portuguese population.
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Affiliation(s)
- A Grangeia
- Genetics Service, Department of Pathology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.
| | - S Alves
- Genetics Service, Department of Pathology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - L Gonçalves
- Genetics Service, Department of Pathology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - I Gregório
- Genetics Service, Department of Pathology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - A C Santos
- Public Health and Forensic Sciences and Medical Education Department, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - H Barros
- Public Health and Forensic Sciences and Medical Education Department, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - A Barros
- Genetics Service, Department of Pathology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
| | - F Carvalho
- Genetics Service, Department of Pathology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
| | - C Moura
- Genetics Service, Department of Pathology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; São João Hospital Centre, 4200-319 Porto, Portugal
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15
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Vitorino R, Vaz F, Carvalho A, Bento S, Luís A, Opinião A, Clara A, Dupont J, Santos S, Machado P, Fragoso S, Rodrigues P, Parreira J, Moura C. Does melanoma or other skin cancers belong to the BRCA2 phenotype? Ann Oncol 2017. [DOI: 10.1093/annonc/mdx377.022] [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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16
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Ferreira A, Moura C, Saraiva FA, Areias J, Leite-Moreira A, Falcao-Pires I. P6311The impact of overweight in a paediatric population after Aortic Coarctation repair. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6311] [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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17
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Ângelo DF, Monje FG, González-García R, Little CB, Mónico L, Pinho M, Santos FA, Carrapiço B, Gonçalves SC, Morouço P, Alves N, Moura C, Wang Y, Jeffries E, Gao J, Sousa R, Neto LL, Caldeira D, Salvado F. Bioengineered Temporomandibular Joint Disk Implants: Study Protocol for a Two-Phase Exploratory Randomized Preclinical Pilot Trial in 18 Black Merino Sheep (TEMPOJIMS). JMIR Res Protoc 2017; 6:e37. [PMID: 28254733 PMCID: PMC5355627 DOI: 10.2196/resprot.6779] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 12/16/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Preclinical trials are essential to test efficacious options to substitute the temporomandibular joint (TMJ) disk. The contemporary absence of an ideal treatment for patients with severe TMJ disorders can be related to difficulties concerning the appropriate study design to conduct preclinical trials in the TMJ field. These difficulties can be associated with the use of heterogeneous animal models, the use of the contralateral TMJ as control, the absence of rigorous randomized controlled preclinical trials with blinded outcomes assessors, and difficulties involving multidisciplinary teams. OBJECTIVE This study aims to develop a new, reproducible, and effective study design for preclinical research in the TMJ domain, obtaining rigorous data related to (1) identify the impact of bilateral discectomy in black Merino sheep, (2) identify the impact of bilateral discopexy in black Merino sheep, and (3) identify the impact of three different bioengineering TMJ discs in black Merino sheep. METHODS A two-phase exploratory randomized controlled preclinical trial with blinded outcomes is proposed. In the first phase, nine sheep are randomized into three different surgical bilateral procedures: bilateral discectomy, bilateral discopexy, and sham surgery. In the second phase, nine sheep are randomized to bilaterally test three different TMJ bioengineering disk implants. The primary outcome is the histological gradation of TMJ. Secondary outcomes are imaging changes, absolute masticatory time, ruminant time per cycle, ruminant kinetics, ruminant area, and sheep weight. RESULTS Previous preclinical studies in this field have used the contralateral unoperated side as a control, different animal models ranging from mice to a canine model, with nonrandomized, nonblinded and uncontrolled study designs and limited outcomes measures. The main goal of this exploratory preclinical protocol is to set a new standard for future preclinical trials in oromaxillofacial surgery, particularly in the TMJ field, by proposing a rigorous design in black Merino sheep. The authors also intend to test the feasibility of pilot outcomes. The authors expect to increase the quality of further studies in this field and to progress in future treatment options for patients undergoing surgery for TMJ disk replacement. CONCLUSIONS The study has commenced, but it is too early to provide results or conclusions.
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Affiliation(s)
- David Faustino Ângelo
- Centro Hospitalar de Setúbal, EPE, Stomatology Department, Setúbal, Portugal
- Instituto Politécnico de Leiria, Centre for Rapid and Sustainable Product Development (CDRSP), Leiria, Portugal
- Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Florencio Gil Monje
- University Hospital Infanta Cristina, Badajoz, Spain, Department of Oral and Maxillofacial Surgery, Badajoz, Spain
| | - Raúl González-García
- University Hospital Infanta Cristina, Badajoz, Spain, Department of Oral and Maxillofacial Surgery, Badajoz, Spain
| | - Christopher B Little
- Kolling Institute, Institute of Bone and Joint Research, University of Sydney, Sydney, Australia
| | | | - Mário Pinho
- Faculdade de Medicina Veterinaria, Interdisciplinary Centre of Research in Animal Health (CIISA), Lisbon University, Lisboa, Portugal
| | - Fábio Abade Santos
- Faculdade de Medicina Veterinaria, Interdisciplinary Centre of Research in Animal Health (CIISA), Lisbon University, Lisboa, Portugal
| | - Belmira Carrapiço
- Faculdade de Medicina Veterinaria, Lisbon University, Lisboa, Portugal
| | | | - Pedro Morouço
- Instituto Politécnico de Leiria, Centre for Rapid and Sustainable Product Development (CDRSP), Leiria, Portugal
| | - Nuno Alves
- Instituto Politécnico de Leiria, Centre for Rapid and Sustainable Product Development (CDRSP), Leiria, Portugal
| | - Carla Moura
- Instituto Politécnico de Leiria, Centre for Rapid and Sustainable Product Development (CDRSP), Leiria, Portugal
| | - Yadong Wang
- University of Pittsburgh, Chemical Engineering and Surgery Pittsburgh, University of Pittsburgh, Pittsburgh, PA, United States
| | - Eric Jeffries
- University of Pittsburgh, Chemical Engineering and Surgery Pittsburgh, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jin Gao
- University of Pittsburgh, Chemical Engineering and Surgery Pittsburgh, University of Pittsburgh, Pittsburgh, PA, United States
| | - Rita Sousa
- Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Lia Lucas Neto
- Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Daniel Caldeira
- Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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18
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Francisco L, Moura C, Viana T, Ângelo D, Morouço P, Alves N. Poly(ɛ-caprolactone) and Polyethylene Glycol Diacrylate-based Scaffolds for TMJ Bioengineered Disc Implants. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.promfg.2017.08.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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19
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Morouço P, Ângelo D, Francisco L, Moura C, Alves N. Tissue engineering for temporomandibular joint disc repair and regeneration: a methodological perspective. ACTA ACUST UNITED AC 2016. [DOI: 10.3402/acmo.v4.33709] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Pedro Morouço
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - David Ângelo
- Hospital de Santa Maria, Faculty of Medicine, University of Lisbon, Lisbon, Portugal
| | - Luís Francisco
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Carla Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
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20
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Gonçalves N, Gomes-Ferreira C, Moura C, Roncon-Albuquerque R, Leite-Moreira A, Falcão-Pires I. Worse cardiac remodeling in response to pressure overload in type 2 diabetes mellitus. Int J Cardiol 2016; 217:195-204. [DOI: 10.1016/j.ijcard.2016.04.178] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 04/19/2016] [Accepted: 04/30/2016] [Indexed: 12/17/2022]
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21
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Rocha G, Luís A, Clara A, Opinião A, Bento S, Dupont J, Rodrigues P, Simões C, Parreira J, Fragoso S, Santos S, Machado P, Moura M, Rocha M, Faria L, Marques J, Moura C, Silva J, Vaz F. 1906 Management of BRCA 1/2 mutation carriers: 14 years of a multidisciplinary program. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30855-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Widdifield J, Moura C, Wang Y, Abrahamowicz M, Beauchamp ME, Paterson M, Huang A, Boire G, Fortin P, Bessette L, Bombardier C, Hanly J, Feldman D, Bernatsky S. OP0020 The Influence of Drug Exposures on Joint Surgeries in Rheumatoid Arthritis Patients: Cross-Provincial Comparisons. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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23
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Grangeia A, Alves S, Gonçalves L, Santos A, Barros A, Moura C, Carvalho F. 310 Prevalence of CF and spectrum of CFTR mutations in the Portuguese population. J Cyst Fibros 2015. [DOI: 10.1016/s1569-1993(15)30484-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Costa P, Moura C, Areias JC, Sousa AR. Intraoperative transesophageal echocardiogram using an intracardiac ultrasound catheter in a congenital heart surgery: a case report. Pediatr Cardiol 2014; 34:1911-3. [PMID: 22854831 DOI: 10.1007/s00246-012-0456-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Accepted: 07/13/2012] [Indexed: 11/29/2022]
Abstract
Transesophageal echocardiography (TEE) during cardiac surgery is a routine procedure. The use of pediatric TEE probes is limited in small infants weighing less than 5 kg. Recent reports have shown the safety of monoplane intravascular ultrasound catheters in transesophageal echocardiograms. This report describes the case of a newborn with total anomalous pulmonary venous return who underwent cardiac surgery. A pre- and postbypass TEE examination was performed, with successful visualization of the cardiac anatomy and function and no complications.
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Affiliation(s)
- P Costa
- Paediatric Cardiology Department, Hospital São João EPE, Porto, Portugal,
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25
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Moura C, Abrahamowicz M, Beauchamp ME, Lacaille D, Wang Y, Bombardier C, Widdifield J, Hanly J, Boire G, Feldman D, Maksymowych W, Peschken C, Barnabe C, Edworthy S, Fortin P, Bessette L, Behlouli H, Bernatsky S. THU0120 Is Early DMARD Use Associated with Less Joint Replacement Surgery? an Analysis of 5,199 Incident Rheumatoid Arthritis (RA) Patients. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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26
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Moura C, Bernatsky S, Abrahamowicz M, Papaioannou A, Bessette L, Adachi J, Goltzman D, Prior J, Kreiger N, Towheed T, Leslie WD, Kaiser S, Ioannidis G, Pickard L, Fraser LA, Rahme E. Antidepressant use and 10-year incident fracture risk: the population-based Canadian Multicentre Osteoporosis Study (CaMoS). Osteoporos Int 2014; 25:1473-81. [PMID: 24566587 PMCID: PMC5094888 DOI: 10.1007/s00198-014-2649-x] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [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: 11/28/2013] [Accepted: 02/05/2014] [Indexed: 01/22/2023]
Abstract
UNLABELLED We used data from a large, prospective Canadian cohort to assess the association between selective serotonin reuptake inhibitors (SSRIs) and serotonin and noradrenaline reuptake inhibitors (SNRIs) and fracture. We found an increased risk of fractures in individuals who used SSRI or SNRI, even after controlling for multiple risk factors. INTRODUCTION Previous studies have suggested an association between SSRIs and increasing risk of fragility fractures. However, the majority of these studies were not long-term analyses or were performed using administrative data and, thus, could not fully control for potential confounders. We sought to determine whether the use of SSRIs and SNRIs is associated with increased risk of fragility fracture, in adults aged 50 + . METHODS We used data from the Canadian Multicentre Osteoporosis Study (CaMos), a prospective randomly selected population-based community cohort; our analyses focused on subjects aged 50+. Time to event methodology was used to assess the association between SSRI/SNRI use, modeled time-dependently, and fragility fracture. RESULTS Among 6,645 subjects, 192 (2.9%) were using SSRIs or/and SNRIs at baseline. During the 10-year study period, 978 (14.7%) participants experienced at least one fragility fracture. In our main analysis, SSRI/SNRI use was associated with increased risk of fragility fracture (hazard ratio (HR), 1.88; 95% confidence intervals (CI), 1.48-2.39). After controlling for multiple risk factors, including Charlson score, previous falls, and bone mineral density hip and lumbar bone density, the adjusted HR for current SSRI/SNRI use remained elevated (HR, 1.68; 95% CI, 1.32-2.14). CONCLUSIONS Our results lend additional support to an association between SSRI/SNRI use and fragility fractures. Given the high prevalence of antidepressants use, and the impact of fractures on health, our findings may have a significant clinical impact.
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Affiliation(s)
- C Moura
- McGill University, Montreal, Canada,
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Affiliation(s)
- Silvio Marques
- Department of Dermatology and Radiotherapy, Botucatu Medical School, São Paulo State University (Unesp) São Paulo, Brazil.
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Magalhães J, Falcão-Pires I, Gonçalves IO, Lumini-Oliveira J, Marques-Aleixo I, Dos Passos E, Rocha-Rodrigues S, Machado NG, Moreira AC, Miranda-Silva D, Moura C, Leite-Moreira AF, Oliveira PJ, Torrella JR, Ascensão A. Synergistic impact of endurance training and intermittent hypobaric hypoxia on cardiac function and mitochondrial energetic and signaling. Int J Cardiol 2013; 168:5363-71. [PMID: 24012275 DOI: 10.1016/j.ijcard.2013.08.001] [Citation(s) in RCA: 22] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2012] [Revised: 04/01/2013] [Accepted: 08/03/2013] [Indexed: 01/01/2023]
Abstract
BACKGROUND Intermittent hypobaric-hypoxia (IHH) and endurance-training (ET) are cardioprotective strategies against stress-stimuli. Mitochondrial modulation appears to be an important step of the process. This study aimed to analyze whether a combination of these approaches provides additive or synergistic effects improving heart-mitochondrial and cardiac-function. METHODS Two-sets of rats were divided into normoxic-sedentary (NS), normoxic-exercised (NE, 1 h/day/5 weeks treadmill-running), hypoxic-sedentary (HS, 6000 m, 5h/day/5 weeks) and hypoxic-exercised (HE) to study overall cardiac and mitochondrial function. In vitro cardiac mitochondrial oxygen consumption and transmembrane potential were evaluated. OXPHOS subunits and ANT protein content were semi-quantified by Western blotting. HIF-1α, VEGF, VEGF-R1 VEGF-R2, BNP, SERCA2a and PLB expressions were measured by qRT-PCR and cardiac function was characterized by echocardiography and hemodynamic parameters. RESULTS Respiratory control ratio (RCR) increased in NE, HS and HE vs. NS. Susceptibility to anoxia/reoxygenation-induced dysfunction decreased in NE, HS and HE vs. NS. HS decreased mitochondrial complex-I and -II subunits; however HE completely reverted the decreased content in complex-II subunits. ANT increased in HE. HE presented normalized ventricular-arterial coupling (Ea) and BNP myocardial levels and significantly improved myocardial performance as evaluated by increased cardiac output and normalization of the Tei index vs. HS CONCLUSION Data demonstrates that IHH and ET confer cardiac mitochondria with a more resistant phenotype although without visible addictive effects at least under basal conditions. It is suggested that the combination of both strategies, although not additive, results into improved cardiac function.
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Affiliation(s)
- J Magalhães
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal.
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Matos TD, Simões-Teixeira H, Caria H, Gonçalves AC, Chora J, Correia MDC, Moura C, Rosa H, Monteiro L, O'Neill A, Dias Ó, Andrea M, Fialho G. Spectrum and frequency of GJB2 mutations in a cohort of 264 Portuguese nonsyndromic sensorineural hearing loss patients. Int J Audiol 2013; 52:466-71. [PMID: 23668481 DOI: 10.3109/14992027.2013.783719] [Citation(s) in RCA: 16] [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: 11/13/2022]
Abstract
OBJECTIVE To assess the spectrum and prevalence of mutations in the GJB2 gene in Portuguese nonsyndromic sensorineural hearing loss (NSSHL) patients. DESIGN Sequencing of the coding region, basal promoter, exon 1, and donor splice site of the GJB2 gene; screening for the presence of the two common GJB6 deletions. STUDY SAMPLE A cohort of 264 Portuguese NSSHL patients. RESULTS At least one out of 21 different GJB2 variants was identified in 80 (30.2%) of the 264 patients analysed. Two mutant alleles were found in 53 (20%) of these probands, of which 83% (44/53) harboured at least one c.35delG allele. Twenty-seven (10.2%) of the probands harboured only one mutant allele. Subsequent analysis revealed that the GJB6 deletion del(GJB6-D13S1854) was present in at least 7.4% (2/27) of the patients carrying only one mutant GJB2 allele. Overall, one in five (55/264) of the patients were diagnosed as having DFNB1-related NSSHL, of which the vast majority (53/55) harboured only GJB2 mutations. CONCLUSIONS This study provides clear demonstration that mutations in the GJB2 gene are an important cause of NSSHL in Portugal, thus representing a valuable indicator as regards therapeutical and rehabilitation options, as well as genetic counseling of these patients and their families.
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Affiliation(s)
- Tiago Daniel Matos
- Centre for Biodiversity, Functional, and Integrative Genomics BioFIG, Faculty of Science, University of Lisbon, Lisboa, Portugal
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Almeida Campos T, Moura C, Castro-Correia C, Fontoura M. Seudohipoparatiroidismo tipo 1b: una causa rara de síncope. An Pediatr (Barc) 2013; 78:131-3. [DOI: 10.1016/j.anpedi.2012.06.016] [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] [Received: 05/25/2012] [Revised: 06/18/2012] [Accepted: 06/27/2012] [Indexed: 10/28/2022] Open
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Gregorio I, Grangeia A, Moura C, Vaz L, Barros A, Carvalho F. 345 Study of the prevalence of CFTR gene mutations in the Portuguese population. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60513-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Clara AI, Costa CS, Silva J, Marques JC, Moura C, André S, Luís A, Bento S, Opinião A, Rodrigues P, Machado P, Fragoso S, Santos S, Vaz F. P2-13-11: Follow Up of BRCA1/2 Carriers: The Spectrum of Cancer Diagnoses in Healthy at Risk Individuals (HTR), and in Cancer Survivors (CS). Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p2-13-11] [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: 11/16/2022]
Abstract
Abstract
Introduction and Objective: Data from long term follow up of BRCA1/2 carriers is scarce and is mainly related to BRCA1 women. Our multidisciplinary program targets both women and men for counselling towards BRCA1/2 screening and inclusion in clinical follow up. In here we review all cancer diagnoses observed in our BRCA1/2 cohort during follow up.
Methods: Review of individual records of BRCA1/2 carriers registered from January 2000 to December 2010. Follow up was calculated since BRCA1/2 post-test counselling until the last visit to the Clinic. All new cancer diagnoses and preventive surgeries were registered.
Results: Two-hundred and fifty nine BRCA1/2 carriers (206 females and 53 males) were diagnosed with BRCA1/2 mutations (42 BRCA1 and 217 BRCA2). Medium follow up for all population is 25 months (1-98). At the date of initial BRCA1/2 diagnosis 99 women and 14 men were CS.
Female population: Eighty-eight female CS had been previously diagnosed with breast cancer (18 bilateral cases), 18 with ovarian cancer, and 1 with biliary tract cancer. Preventive surgeries in the CS female population were: bilateral adnexectomy (33 pts) and prophylactic contralateral mastectomy (10 pts). In this CS female population, new cancers, during follow up were: Contralateral breast cancer (4 cases), peritoneal cancer (2 cases in pts with previous prophylactic surgery) and skin non-melanoma cancers (2 cases). In female HTR, 23 preventive bilateral adnexectomies and 20 bilateral mastectomies were performed. Cancer diagnoses during follow up were: breast (11), peritoneum (1 in a pt with previous prophylactic surgery), gastric (1) and M3 leukemia (1). Global failure of prophylactic adnexectomy, so far (CS+HTR): 3/56 (5%).
Male population: The medium age for male CS is 73 yrs and for male HTR is 52 yrs. Male CS had mostly been previously diagnosed with BC (12; 4 bilateral) and prostate cancer (4). Other previous cancers: gastric (2), skin (2: 1Melanoma, 1 non-Melanoma), colorectal (1). One BRCA2 man with gynecomastia and prostate cancer was submitted to reduction mastectomy, as a preventive surgery. During follow up, we diagnosed second and third cancers in male CS: breast (2), prostate (6) and gastric (1). Only 1 male HTR was diagnosed with cancer: skin non-melanoma.
Conclusion: The proportion of second and third cancer diagnoses in the male BRCA2 CS population is higher than in the female BRCA1/2 CS population. Small numbers and the availability of preventive surgery for women influence this observation. No data from preventive mastectomy exists for males (we have one case). The low frequency of cancer in male HTR may be due to younger age and other unknown modifier factors. Longer follow is needed.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P2-13-11.
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Affiliation(s)
- AI Clara
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - CS Costa
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - J Silva
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - JC Marques
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - C Moura
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - S André
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - A Luís
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - S Bento
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - A Opinião
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - P Rodrigues
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - P Machado
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - S Fragoso
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - S Santos
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
| | - F Vaz
- 1Instituto Portuguěs de Oncologia, Lisbon, Portugal
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Barbosa JG, Pereira MR, Moura C, Mendes JA, Almeida BG. Barium titanate thin films deposited by electrophoresis on p-Doped Si (001) substrates. J Nanosci Nanotechnol 2011; 11:8700-8704. [PMID: 22400246 DOI: 10.1166/jnn.2011.3494] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Barium titanate (BaTiO3) thin films have been prepared by electrophoretic deposition on p-doped and platinum covered silicon (Si) substrates. Their structure, nanostructure and dielectric properties were characterized. The as-deposited films were polycrystalline and composed by barium titanate nanograins with an average grain size approximately 9 nm. Annealing at high temperatures promoted grain growth, so that the samples annealed at 600 degrees C presented average grain sizes approximately 24 nm. From Raman spectroscopy measurements it was found that the tetragonal (ferroelectric) BaTiO3 phase was stabilized on the films. Also, at higher annealing temperatures, cation disorder was reduced on the films. From measurements of the temperature dependence of the dielectric permittivity the corresponding paraelectric-ferroelectric phase transition was determined. The observed transition temperature (approximately 100 degrees C) was found to be below the BaTiO3 bulk or thick film values, due to the small nanosized grains composing the films.
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Affiliation(s)
- J G Barbosa
- Centro de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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Lopez E, Moura C, Costa P, Areias J, Rodrigues de Sousa A, Almeida J. [Sinister cor triatriatum in an asymptomatic child]. Rev Port Cir Cardiotorac Vasc 2011; 18:33-35. [PMID: 22611534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Cor triatriatum is a very rare congenital abnormality, usually symptomatic during childhood. The authors report the case of an asymptomatic 4-years old boy with two orifices in the cor triatriatum membrane. Surgical correction, with total removal of the membrane, was successfully accomplished.
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Affiliation(s)
- E Lopez
- Serviços de Cirurgia Cardiotorácica e de Cardiologia Pediátrica do Hospital de Sã João, Porto
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Dimova I, Hlushchuk R, Makanya A, Djonov V, Theurl M, Schgoer W, Albrecht K, Beer A, Patsch JR, Schratzberger P, Mahata S, Kirchmair R, Didie M, Christalla P, Rau T, Eschenhagen T, Schumacher U, Lin Q, Zenke M, Zimmmermann W, Hoch M, Fischer P, Stapel B, Missol-Kolka E, Erschow S, Scherr M, Drexler H, Hilfiker-Kleiner D, Diebold I, Petry A, Kennel P, Djordjevic T, Hess J, Goerlach A, Castellano J, Aledo R, Sendra J, Costales P, Badimon L, Llorente-Cortes V, Dworatzek E, Mahmoodzadeh S, Regitz-Zagrosek V, Posa A, Varga C, Berko A, Veszelka M, Szablics P, Vari B, Pavo I, Laszlo F, Brandenburger M, Wenzel J, Bogdan R, Richardt D, Reppel M, Hescheler J, Terlau H, Dendorfer A, Heijman J, Rudy Y, Westra R, Volders P, Rasmusson R, Bondarenko V, Ertas Gokhan MD, Ural Ertan MD, Karaoz Erdal PHD, Aksoy Ayca PHD, Kilic Teoman MD, Kozdag Guliz MD, Vural Ahmet MD, Ural Dilek MD, Poulet C, Christ T, Wettwer E, Ravens U, Van Der Pouw Kraan C, Schirmer S, Fledderus J, Moerland P, Leyen T, Piek J, Van Royen N, Horrevoets A, Fleissner F, Jazbutyte V, Fiedler J, Galuppo P, Mayr M, Ertl G, Bauersachs J, Thum T, Protze S, Bussek A, Ravens U, Li F, Hoo R, Lam K, Xu A, Westenbrink B, Maass A, Sillje H, Van Veldhuisen D, Van Gilst W, De Boer R, Biesmans L, Bito V, Driessen R, Holemans P, Subramanian P, Lenaerts I, Huysmans C, Sipido K, Mourouzis I, Pantos C, Galanopoulos G, Gavra M, Perimenis P, Spanou D, Cokkinos D, Karshovska E, Berezin A, Panasenko T, Euler G, Partsch S, Harjung C, Heger J, Bogdanova A, Mihov D, Mocharla P, Yakushev S, Megens R, Vogel J, Gassmann M, Tavakoli R, Johansen D, Sanden E, Xi C, Sundset R, Ytrehus K, Bliksoen M, Rutkovskiy A, Akhtar S, Mariero L, Vaage I, Stenslokken K, Pisarenko O, Shulzhenko V, Studneva I, Serebryakova L, Tskitishvili O, Pelogeykina Y, Timoshin A, Heyll K, Vanin A, Ziberna L, Lunder M, Drevensek G, Passamonti S, Gorza L, Ravara B, Scapin C, Vitadello M, Zigrino F, Jansen Y, Gerosa G, Gwathmey J, Del Monte F, Vilahur G, Juan-Babot O, Onate B, Casani L, Badimon L, Lemoine S, Calmettes G, Weber C, Jaspard-Vinassa B, Duplaa C, Couffinhal T, Diolez P, Dos Santos P, Fusco A, Santulli G, Cipolletta E, Sorriento D, Cervero P, Schober A, Trimarco B, Feliciello A, Iaccarino G, Loganathan S, Barnucz E, Korkmaz S, Hirschberg K, Karck M, Szabo G, Kozichova K, Zafeiriou M, Hlavackova M, Neckar J, Kolar F, Novakova O, Novak F, Kusmic C, Matteucci M, Pelosi G, Vesentini N, Barsanti C, Noack C, Trivella M, Abraham N, L'abbate A, Muntean D, Mirica S, Duicu O, Raducan A, Hancu M, Fira-Mladinescu O, Ordodi V, Renger A, Voelkl J, Haubner B, Neely G, Moriell C, Seidl S, Pachinger O, Penninger J, Metzler B, Dietz R, Zelarayan L, Bergmann M, Meln I, Malashicheva A, Anisimov S, Kalinina N, Sysoeva V, Zaritskey A, Barbuti A, Scavone A, Mazzocchi N, Crespi A, Capilupo D, Difrancesco D, Qian L, Shim W, Gu Y, Mohammed S, Wong P, Noack C, Renger A, Zafiriou M, Dietz R, Schaeffer H, Bergmann M, Zelarayan L, Kovacs P, Simon J, Christ T, Wettwer E, Varro A, Ravens U, Athias P, Wolf J, Bouchot O, Vandroux D, Mathe A, De Carvalho A, Laurent G, Rainer P, Huber M, Edelmann F, Stojakovic T, Trantina-Yates A, Trauner M, Pieske B, Von Lewinski D, De Jong A, Maass A, Oberdorf-Maass S, Van Gelder I, Lin Y, Li J, Wang F, He Y, Li X, Xu H, Yang X, Coppini R, Ferrantini C, Ferrara C, Rossi A, Mugelli A, Poggesi C, Cerbai E, Rozmaritsa N, Voigt N, Christ T, Wettwer E, Dobrev D, Ravens U, Kienitz MC, Zoidl G, Bender K, Pott L, Kohajda Z, Kristof A, Kovacs P, Virag L, Varro A, Jost N, Voigt N, Trafford A, Ravens U, Dobrev D, Prnjavorac B, Mujaric E, Jukic J, Abduzaimovic K, Brack K, Patel V, Coote J, Ng G, Wilders R, Van Ginneken A, Verkerk A, Brack K, Coote J, Ng G, Xaplanteris P, Vlachopoulos C, Baou K, Vassiliadou C, Dima I, Ioakeimidis N, Stefanadis C, Ruifrok W, Qian C, Sillje H, Van Goor H, Van Veldhuisen D, Van Gilst W, De Boer R, Schmidt K, Kaiser F, Erdmann J, De Wit C, Barnett O, Kyyak Y, Cesana F, Boffi L, Mauri T, Alloni M, Betelli M, Nava S, Giannattasio C, Mancia G, Vilskersts R, Kuka J, Svalbe B, Liepinsh E, Dambrova M, Zakrzewicz A, Maroski J, Vorderwuelbecke B, Fiedorowicz K, Da Silva-Azevedo L, Pries A, Gryglewska B, Necki M, Zelawski M, Grodzicki T, Scoditti E, Massaro M, Carluccio M, Distante A, Storelli C, De Caterina R, Kocgirli O, Valcaccia S, Dao V, Suvorava T, Kumpf S, Floeren M, Oppermann M, Kojda G, Leo C, Ziogas J, Favaloro J, Woodman O, Goettsch W, Marton A, Goettsch C, Morawietz H, Khalifa E, Ashour Z, Dao V, Floeren M, Kumpf S, Suvorava T, Kojda G, Rupprecht V, Scalera F, Martens-Lobenhoffer J, Bode-Boeger S, Li W, Kwan Y, Leung G, Patella F, Mercatanti A, Pitto L, Rainaldi G, Tsimafeyeu I, Tishova Y, Wynn N, Kalinchenko S, Clemente Lorenzo M, Grande M, Barriocanal F, Aparicio M, Martin A, Hernandez J, Lopez Novoa J, Martin Luengo C, Kurlianskaya A, Denisevich T, Leo C, Ziogas J, Favaloro J, Woodman O, Barth N, Loot A, Fleming I, Wang Y, Gabrielsen A, Ripa R, Jorgensen E, Kastrup J, Arderiu G, Pena E, Badimon L, Kobus K, Czyszek J, Kozlowska-Wiechowska A, Milkiewicz P, Milkiewicz M, Madonna R, Montebello E, Geng Y, De Caterina R, Chin-Dusting J, Michell D, Skilton M, Dixon J, Dart A, Moore X, Hlushchuk R, Ehrbar M, Reichmuth P, Heinimann N, Djonov V, Hewing B, Stangl V, Stangl K, Laule M, Baumann G, Ludwig A, Widmer-Teske R, Mueller A, Stieger P, Tillmanns H, Braun-Dullaeus R, Sedding D, Troidl K, Eller L, Benli I, Apfelbeck H, Schierling W, Troidl C, Schaper W, Schmitz-Rixen T, Hinkel R, Trenkwalder T, Pfosser A, Globisch F, Stachel G, Lebherz C, Bock-Marquette I, Kupatt C, Seyler C, Duthil-Straub E, Zitron E, Scholz E, Thomas D, Gierten J, Karle C, Fink R, Padro T, Lugano R, Garcia-Arguinzonis M, Badimon L, Schuchardt M, Pruefer J, Toelle M, Pruefer N, Jankowski V, Jankowski J, Zidek W, Van Der Giet M, Pena E, Arderiu G, Badimon L, Fransen P, Van Hove C, Michiels C, Van Langen J, Bult H, Quarck R, Wynants M, Alfaro-Moreno E, Rosario Sepulveda M, Wuytack F, Van Raemdonck D, Meyns B, Delcroix M, Christofi F, Wijetunge S, Sever P, Hughes A, Ohanian J, Forman S, Ohanian V, Wijetunge S, Hughes A, Gibbons C, Ohanian J, Ohanian V, Costales P, Aledo R, Vernia S, Das A, Shah V, Casado M, Badimon L, Llorente-Cortes V, Fransen P, Van Hove C, Van Langen J, Bult H, Bielenberg W, Daniel J, Tillmanns H, Sedding D, Daniel JM, Hersemeyer K, Schmidt-Woell T, Kaetzel D, Tillmans H, Sedding D, Kanse S, Tuncay E, Kandilci H, Zeydanli E, Sozmen N, Akman D, Yildirim S, Turan B, Nagy N, Acsai K, Farkas A, Papp J, Varro A, Toth A, Viero C, Mason S, Williams A, Marston S, Stuckey D, Dyer E, Song W, El Kadri M, Hart G, Hussain M, Faltinova A, Gaburjakova J, Urbanikova L, Hajduk M, Tomaskova B, Antalik M, Zahradnikova A, Steinwascher P, Jaquet K, Muegge A, Ferrantini C, Coppini R, Wang G, Zhang M, Cerbai E, Tesi C, Poggesi C, Ter Keurs H, Kettlewell S, Smith G, Workman A, Acsai K, Lenaerts I, Holemans P, Sokolow S, Schurmans S, Herchuelz A, Sipido K, Antoons G, Wehrens X, Li N, Respress JR, De Almeida A, Van Oort R, Bussek A, Lohmann H, Christ T, Wettwer E, Ravens U, Saes M, Muegge A, Jaquet K, Messer A, Copeland O, Leung M, Marston S, Matthes F, Steinbrecher J, Salinas-Riester G, Opitz L, Hasenfuss G, Lehnart S, Caracciolo G, Eleid M, Carerj S, Chandrasekaran K, Khandheria B, Sengupta P, Riaz I, Tyng L, Dou Y, Seymour A, Dyer C, Griffin S, Haswell S, Greenman J, Yasushige S, Amorim P, Nguyen T, Schwarzer M, Mohr F, Doenst T, Popin Sanja S, Lalosevic D, Capo I, Momcilov Popin T, Astvatsatryan A, Senan M, Astvatsatryan A, Senan M, Shafieian G, Goncalves N, Falcao-Pires I, Henriques-Coelho T, Moreira-Goncalves D, Leite-Moreira A, Bronze Carvalho L, Azevedo J, Andrade M, Arroja I, Relvas M, Morais G, Seabra M, Aleixo A, Winter J, Brack K, Ng G, Zabunova M, Mintale I, Lurina D, Narbute I, Zakke I, Erglis A, Astvatsatryan A, Senan M, Marcinkevics Z, Kusnere S, Abolins A, Aivars J, Rubins U, Nassar Y, Monsef D, Hamed G, Abdelshafy S, Chen L, Wu Y, Wang J, Cheng C, Sternak M, Khomich T, Jakubowski A, Szafarz M, Szczepanski W, Mateuszuk L, Szymura-Oleksiak J, Chlopicki S, Sulicka J, Strach M, Kierzkowska I, Surdacki A, Mikolajczyk T, Balwierz W, Guzik T, Grodzicki T, Dmitriev V, Oschepkova E, Polovitkina O, Titov V, Rogoza A, Shakur R, Metcalfe S, Bradley J, Demyanets S, Kaun C, Kastl S, Pfaffenberger S, Huk I, Maurer G, Huber K, Wojta J, Eriksson O, Aberg M, Siegbahn A, Prnjavorac B, Niccoli G, Sgueglia G, Conte M, Giubilato S, Cosentino N, Ferrante G, Crea F, Dmitriev V, Oschepkova E, Polovitkina O, Titov V, Ilisei D, Leon M, Mitu F, Kyriakakis E, Philippova M, Cavallari M, Bochkov V, Biedermann B, De Libero G, Erne P, Resink T, Titov V, Bakogiannis C, Antoniades C, Tousoulis D, Demosthenous M, Psarros C, Sfyras N, Channon K, Stefanadis C, Del Turco S, Navarra T, Basta G, De Caterina R, Carnicelli V, Frascarelli S, Zucchi R, Kostareva A, Malashicheva A, Sjoberg G, Gudkova A, Semernin E, Shlyakhto E, Sejersen T, Cucu N, Anton M, Stambuli D, Botezatu A, Arsene C, Lupeanu E, Anton G, Beer A, Theurl M, Schgoer W, Albrecht K, Patsch J, Huber E, Schratzberger P, Kirchmair R, Lande C, Cecchettini A, Tedeschi L, Trivella M, Citti L, Chen B, Ma Y, Yang Y, Ma X, Liu F, Hasanzad M, Rejali L, Fathi M, Minassian A, Mohammad Hassani R, Najafi A, Sarzaeem M, Sezavar S, Akhmedov A, Klingenberg R, Yonekawa K, Lohmann C, Gay S, Maier W, Neithard M, Luescher T, Xie X, Ma Y, Yang Y, Fu Z, Li X, Ma X, Liu F, Chen B, Kevorkov A, Verduci L, Mercatanti A, Cremisi F, Pitto L, Wonnerth A, Katsaros K, Zorn G, Kaun C, Weiss T, Huber K, Maurer G, Wojta J, De Rosa R, Galasso G, Piscione F, Santulli G, Iaccarino G, Piccolo R, Luciano R, Chiariello M, Szymanski M, Schoemaker R, Van Veldhuisen D, Van Gilst W, Hillege H, Rizzo S, Basso C, Thiene G, Valente M, Rickelt S, Franke W, Bartoloni G, Bianca S, Giurato E, Barone C, Ettore G, Bianca I, Eftekhari P, Wallukat G, Bekel A, Heinrich F, Fu M, Briedert M, Briand J, Roegel J, Rizzo S, Pilichou K, Basso C, 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C, Antoniades C, Antonopoulos A, Tousoulis D, Miliou A, Triantafyllou C, Channon K, Stefanadis C, Masson W, Siniawski D, Sorroche P, Casanas L, Scordo W, Krauss J, Cagide A, Schuchardt M, Toelle M, Huang T, Wiedon A, Van Der Giet M, Chin-Dusting J, Lee S, Walker K, Dart A, O'dea K, Skilton M, Perez Berbel P, Arrarte Esteban V, Garcia Valentin M, Sola Villalpando M, Lopez Vaquero C, Caballero L, Quintanilla Tello M, Sogorb Garri F, Duerr G, Elhafi N, Bostani T, Swieny L, Kolobara E, Welz A, Roell W, Dewald O, Kaludercic N, Takimoto E, Nagayama T, Chen K, Shih J, Kass D, Di Lisa F, Paolocci N, Vinet L, Pezet M, Briec F, Previlon M, Rouet-Benzineb P, Hivonnait A, Charpentier F, Mercadier J, Villar A, Cobo M, Llano M, Montalvo C, Exposito V, Nistal J, Hurle M, Ruifrok W, Meems L. Saturday, 17 July 2010. Cardiovasc Res 2010. [DOI: 10.1093/cvr/cvq174] [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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Leite-Moreira A, Bukauskas F, Palacios-Prado N, Norheim F, Raastad T, Thiede B, Drevon C, Haugen F, Lindner D, Westermann D, Zietsch C, Schultheiss HP, Tschoepe C, Horn M, Graham H, Hall M, Richards M, Clarke J, Dibb K, Trafford A, Cheng CF, Lin H, Eigeldiger-Berthou S, Buntschu P, Frobert A, Flueck M, Tevaearai H, Kadner A, Mikhailov A, Torrado M, Centeno A, Lopez E, Lourido L, Castro Beiras A, Popov T, Srdanovic I, Petrovic M, Canji T, Kovacevic M, Jovelic A, Sladojevic M, Panic G, Kararigas G, Fliegner D, Regitz-Zagrosek V, De La Rosa Sanchez A, Dominguez J, Sedmera D, Franco D, Aranega A, Medunjanin S, Burgbacher F, Schmeisser A, Strasser R, Braun-Dullaeus R, Li X, Ma Y, Yang Y, Liu F, Han W, Chen B, Zhang J, Gao X, Bayliss C, Song W, Stuckey D, Dyer E, Leung MC, Monserrat L, Marston S, Sorriento D, Santulli G, Fusco A, Trimarco B, Iaccarino G, Revnic C, Ginghina C, Revnic F, Paillard M, Liang J, Strub G, Gomez L, Hait N, Allegood J, Lesnefsky E, Spiegel S, Zuchi C, Coiro S, Bettini M, Ciliberti G, Mancini I, Tritto I, Becker L, Ambrosio G, Adam T, Sharp S, Opie L, Lecour S, Khaliulin I, Parker J, Halestrap A, Kandasamy A, Schulz R, Schoepe M, Schwarzer M, Schrepper A, Osterholt M, Amorim P, Mohr F, Doenst T, Fernandez-Sanz C, Ruiz-Meana M, Miro-Casas E, Agullo E, Boengler K, Schulz R, Garcia-Dorado D, Menazza S, Canton M, Sheeran F, Di Lisa F, Pepe S, Borchi E, Manni M, Bargelli V, Giordano C, D'amati G, Cerbai E, Nediani C, Raimondi L, Micova P, Balkova P, Kolar F, Neckar J, Novak F, Novakova O, Schuchardt M, Toelle M, Pruefer N, Pruefer J, Jankowski V, Jankowski J, Van Der Giet M, Han W, Su Y, Zervou S, Aksentijevic D, Lygate C, Neubauer S, Seidel B, Korkmaz S, Radovits T, Hirschberg K, Loganathan S, Barnucz E, Karck M, Szabo G, Aggeli I, Kefaloyianni E, Beis I, Gaitanaki C, Lacerda L, Somers S, Opie L, Lecour S, Brack K, Coote J, Ng G, Paur H, Nikolaev V, Lyon A, Harding S, Bras-Silva C. Sunday, 18 July 2010. Cardiovasc Res 2010. [DOI: 10.1093/cvr/cvq176] [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: 11/13/2022] Open
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Cunha L, Vaz F, Moura C, Munteanu D, Ionescu C, Rivière JP, Le Bourhis E. Ti-Si-C thin films produced by magnetron sputtering: correlation between physical properties, mechanical properties and tribological behavior. J Nanosci Nanotechnol 2010; 10:2926-2932. [PMID: 20355526 DOI: 10.1166/jnn.2010.1428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Ti-Si-C thin films were deposited onto silicon, stainless steel and high-speed steel substrates by magnetron sputtering, using different chamber configurations. The composition of the produced films was obtained by Electron Probe Micro-Analysis (EPMA) and the structure by X-ray diffraction (XRD). The hardness and residual stresses were obtained by depth-sensing indentation and substrate deflection measurements (using Stoney's equation), respectively. The tribological behavior of the produced films was studied by pin-on-disc. The increase of the concentration of non-metallic elements (carbon and silicon) caused significant changes in their properties. Structural analysis revealed the possibility of the coexistence of different phases in the prepared films, namely Ti metallic phase (alpha-Ti or beta-Ti) in the films with higher Ti content. The coatings with highest carbon contents, exhibited mainly a sub-stoichiometric fcc NaCI TiC-type structure. These structural changes were also confirmed by resistivity measurements, whose values ranged from 10(3) omega/sq for low non-metal concentration, up to 10(6) omega/sq for the highest metalloid concentration. A strong increase of hardness and residual stresses was observed with the increase of the non-metal concentration in the films. The hardness (H) values ranged between 11 and 27 GPa, with a clear dependence on both crystalline structure and composition features. Following the mechanical behavior, the tribological results showed similar trends, with both friction coefficients and wear revealing also a straight correlation with the composition and crystalline structure of the coatings.
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Affiliation(s)
- L Cunha
- Physics Department, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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Cordeiro M, Scaglia F, Da Silva SL, Garcia P, Grazina M, Moura C, Diogol L. The Brain-Heart Connection in Mitochondrial Respiratory Chain Diseases. Neuroradiol J 2009; 22:558-63. [DOI: 10.1177/197140090902200508] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Accepted: 10/20/2009] [Indexed: 11/15/2022] Open
Abstract
Mitochondrial respiratory chain disorders (MRCD) are a heterogeneous group of diseases leading to an inadequate production of ATP. Brain and heart are among the most affected organs. Thus far, no specific relationship has been found between specific affected areas in the central nervous system and cardiac involvement. This study investigated the relationship between specific brain involvement and heart disease in mitochondrial disorders. We hypothesize that specific areas of brain lesions in children with MRCD are more frequently correlated to heart disease than others. A retrospective evaluation of the clinical records of 63 children with a definite MRCD, was performed searching for heart disease, namely, dilated and hypertrophic cardiomyopathy and arrhythmia. Brain MR images were evaluated and characterized regarding specific areas of atrophy and involvement. These findings were correlated using the Fischer exact test whose strength was determined with the Phi coefficient. During the period analyzed, 13 children (20.6%) developed cardiac disease, of whom nine (14.3%) exhibited isolated cardiomyopathy, one (1.6%) exhibited arrhythmia and three both. The main MRI abnormalities observed were brain atrophy (65.1%) and among this group 17.5% of subjects had cerebellar involvement. In addition, supratentorial, cerebellar and brainstem white and grey matter lesions were also found. There was a statistically significant relationship between progression to cardiac disease and cerebellar atrophy (Fisher's Exact Test −0.005 and Phi 0.394) and lesions in the cerebral peduncles (0.035/0.358). Moreover, there was an additional correlation between thalamic lesions and progression to hypertrophic myocardiopathy (0.029/0.397). A statistical relationship between thalamic, mesencephalic and cerebellar involvement and cardiac disease in children with definite MRCD was observed. The true significance of this connection warrants further assessment.
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Affiliation(s)
- M. Cordeiro
- Neuroradiology, Medical Imaging Department, Faculty of Medicine, University Hospital Coimbra; Portugal
| | - F. Scaglia
- Department of Molecular and Human Genetics, Baylor College of Medicine and Texas Children's Hospital; Houston, Texas, USA
| | - S. Lopes Da Silva
- Neuroradiology, Medical Imaging Department, Faculty of Medicine, University Hospital Coimbra; Portugal
| | - P. Garcia
- Metabolic Diseases Unit, Center for Child Development “Luís Borges”, Pediatric Hospital of Coimbra - CHC EPE; Coimbra, Portugal
| | - M. Grazina
- Center for Neuroscience and Cell Biology, University of Coimbra; Coimbra, Portugal
| | - C. Moura
- Neuroradiology, Medical Imaging Department, Faculty of Medicine, University Hospital Coimbra; Portugal
| | - L. Diogol
- Department of Molecular and Human Genetics, Baylor College of Medicine and Texas Children's Hospital; Houston, Texas, USA
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Carles R, Zwick A, Moura C, Djafari-Rouhani M. Density of vibrational states in highly disordered systems through Raman scattering and atomic-scale simulation. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13642819808204967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- R. Carles
- a Laboratoire de Physique des Solides , Université Paul Sabatier , 31063, Toulouse , Cedex , 4 , France
| | - A. Zwick
- a Laboratoire de Physique des Solides , Université Paul Sabatier , 31063, Toulouse , Cedex , 4 , France
| | - C. Moura
- b Departamento de Fisica , Universidade do Minho , Largo do Paço, 4719 , Braga-Codex , Portugal
| | - M. Djafari-Rouhani
- b Departamento de Fisica , Universidade do Minho , Largo do Paço, 4719 , Braga-Codex , Portugal
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Vaz FH, Opinião AS, Rodrigues PC, Machado PM, Fragoso S, Santos S, Silva J, Moura C, Oliveira J. Men attending a breast cancer risk evaluation clinic. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-1103] [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: 11/16/2022]
Abstract
Abstract
Abstract #1103
Background- Counselling for hereditary breast cancer risk has been mostly directed to women and their female counterparts. However, BRCA1/2 male carriers are at risk for several cancers and their motivation for counselling and follow up is mostly unknown.
 Material and methods- Review of individual and family records from all male pts counseled in our clinic from Jan2001-Dec2007.
 Results: eighty one male pts were counseled, 32 previously affected with cancer (mean age 61yrs) and 49 healthy men (mean 41 yrs). Mostly, all affected pts were refered to or invited to as probands for BRCA2 screenning. All but 2 of these accepted screening after counseling, being the concern with their offspring the main motivation for testing. With 3 exceptions all unaffected men were unvited for counselling due to the identification of BRCA2 mutations in their families: 6/49 refused or postponed genetic testing after counselling (mean age 39 yrs). All male BRCA carriers (total of 32) are BRCA2 positive: 12 index probands affected with Breast (10 cases, 3 bilateral) or prostate cancer ( 2 cases) and 20 healthy carriers under increased surveillance (yearly observations at the Breast Clinic + Dermatology and Urology). Psychosocial support is also available but only one male BRCA2 carrier, a prostate cancer survivor with previous depressive symptons, has this support regularly.
 Male carriers did adhere to increased surveillance and 5 neoplasias were diagnosed in 4 BRCA2 male breast cancer survivors: 3 cases of asymptomatic prostate cancer (Gleasons 9, 7 and 6 respectivly) 1 case of contralateral breast cancer and 1 case of gastric cancer. All 4 pts are alive without evidence of disease, after appropriate treatment. Conclusions: men belonging to BRCA families are at risk for several cancers and seem to adhere to genetic testing and surveillance. Guidelines for hereditary breast cancer management should be comphreensive and include orientations to counsell male individuals at risk.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 1103.
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Affiliation(s)
- FH Vaz
- 1 Breast Cancer Evaluation Clinic, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
- 2 Molecular Biology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
- 3 Medical Oncology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - AS Opinião
- 3 Medical Oncology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - PC Rodrigues
- 1 Breast Cancer Evaluation Clinic, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - PM Machado
- 2 Molecular Biology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - S Fragoso
- 2 Molecular Biology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - S Santos
- 2 Molecular Biology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - J Silva
- 4 Urology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - C Moura
- 5 Dermatology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
| | - J Oliveira
- 3 Medical Oncology, Instituto Portugues de Oncologia de Lisboa, Lisboa, Portugal
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Brás-Silva C, Monteiro-Sousa D, Duarte AJ, Guerra M, Fontes-Sousa AP, Moura C, Areias JC, Leite Moreira AF. Nitric oxide and prostaglandins – important players in endothelin-1 induced myocardial distensibility. Physiol Res 2008; 57:165-174. [PMID: 17552879 DOI: 10.33549/physiolres.931148] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
This study investigated whether endothelin (ET)-1-induced
increase in myocardial distensibility is preserved in heart failure
(HF) and whether it is modulated by nitric oxide (NO) and
prostaglandins. New Zealand white rabbits were treated with
doxorubicin (1 mg/kg, intravenously twice a week for 8 weeks,
DOX-HF group) or saline (control group). Effects of ET-1 (0.1, 1,
10 nM) were tested in papillary muscles from the DOX-HF group
and a control group in the presence of: i) intact endocardial
endothelium (EE); ii) damaged EE; iii) NG -nitro-L-arginine (L-NNA; NO synthase inhibitor), and iv) indomethacin (INDO;
cyclooxygenase inhibitor). In the presence of an intact EE, ET-1
promoted concentration-dependent positive inotropic and
lusitropic effects that were maintained after damaging the EE, in
the presence of L-NNA or INDO and in the DOX-HF Group. ET-1
reduced resting tension at the end of the isometric twitch
(increased diastolic distensibility) by 3.2±1.3 %, 6.0±1.6 % and
8.8±2.7 % (at 0.1, 1 and 10 nM, respectively), in muscles with
intact EE, effect that was completely abolished after damaging
EE, in the presence of L-NNA or INDO or in the DOX-HF Group.
This study demonstrated that the increase in myocardial
distensibility induced by ET-1 is absent in HF and is dependent of
NO and prostaglandin release.
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Affiliation(s)
- C Brás-Silva
- Department of Physiology, Faculty of Medicine, Porto, Portugal
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Affiliation(s)
- C Moura
- Paediatric Cardiology Center, Hospital of S. João, 4202-451 Oporto, Portugal
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Maltret A, Moura C, Le Bidois J, Fermont L, Bajolle F, Stos B, Azancot A, Bonnet D. [Prognosis of atrioventricular canal in euploid foetus without abnormality of atrial situs]. Arch Mal Coeur Vaiss 2007; 100:411-5. [PMID: 17646766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Atrioventricular septal defects are commonly diagnosed during fetal life. Postnatal prognosis of atrioventricular septal defects associated with trisomy 21 and with heterotaxia sequences are relatively well known. However, predicting postnatal outcome in fetus with atrioventricular septal defects and normal chromosome and normal atrial situs remains a challenge. In a series of 141 fetal atrioventricular septal defects, we analyzed 80 fetuses with normal karyotype. Twenty-seven had an abnormal atrial situs. One fetus was lost for follow-up. Finally, 52 fetuses were included in the study. Termination of pregnancy was performed in 18 cases (34%). Six fetuses died in utero (18% of ongoing pregnancies). Twenty eight infants were born alive, 2 of them were lost for follow-up right after birth and 3 live born infants died postanatally (11%). Postoperative mortality was 3/15 (20%). Complete repair was proceed for 13 infants, palliative repair for 2; and 8 infants didn't have surgery at the end of follow-up because of partial or intermediate atrioventricular septal defect. The only factor significantly associated with poor outcome was the small size of the left ventricle. Isolated atrioventricular septal defects are of poor cardiac prognosis particularly when associated with left heart obstructions.
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Affiliation(s)
- A Maltret
- Centre de référence "Malformations cardiaques Congénitales Complexes-M3C", Université Paris-V, Necker-Enfants Malades, AP-HP, Paris
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Moura C, Soares C, Seixas D, Ayres-Bastos M, Pais-Clemente M, Oliveiraz J. Fabry disease: Worsening of hearingloss with enzyme replacement therapy. Clin Ther 2007. [DOI: 10.1016/s0149-2918(07)80159-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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da Gama AD, Rosa A, Martins C, do Carmo G, Sá DC, Moura C, Romero M, Rodriguez JM. [Primary aneurysms of carotid bifurcation: surgical management]. Rev Port Cir Cardiotorac Vasc 2005; 12:163-8. [PMID: 16234909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
From 1980 to 2005, eight patients, four male and four female, age range between 33 to 86 years (average 55.2) with the diagnosis of primary aneurysm of the carotid bifurcation, underwent surgical management. Patients with postendarterectomy pseudo-aneurysms (also rotulated as "secondary") were excluded from the study, due to different pathogenic, clinical and therapeutic features. Four aneurysms were degenerative by nature, occurring in the older patients of the series. Some other etiologies include arterial fibrodysplasia, brucellosis, Behçet's disease and penetrating wound of the neck. All patients underwent the surgical resection of the aneurysm, followed by reestablishment of the carotid continuity in 6 cases; two patient had a definite ligation of the internal and external carotid artery, respectively. There was no operative mortality nor significant morbidity. From 1 to 25 years after the operation, three patients died for different reasons, two were lost for follow up and the remaining three are found alive and well. The main features of clinical presentation, etiology, diagnosis and surgical management of this entity are presented and discussed and compared with similar experiences reported in the international literature.
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Affiliation(s)
- A Dinis da Gama
- Clinica Universitária de Cirurgia Vascular, Hospital de Santa Maria, Lisboa
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Abreu P, Azevedo E, Lobo L, Moura C, Pontes C. [Cerebral Whipple disease without gastrointestinal symptoms]. Rev Neurol 2005; 40:255. [PMID: 15765321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
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Garcı́a-Morales V, Silva T, Moura C, Manzanares J, Silva F. Ion transport through polyelectrolyte multilayers under steady-state conditions. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2004.02.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Carriço A, Moura C, Baptista MJ, Silva G, Vaz T, Guimarães H. Cardiac rhabdomyomas presenting in neonates. Rev Port Cardiol 2001; 20:1095-101. [PMID: 11826700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
UNLABELLED Rhabdomyoma is the most common cardiac neoplasm in neonates. Spontaneous regression of such tumors is common, particularly with smaller lesions, followed by resolution of symptoms. Because most of the tumoral masses regress spontaneously, treatment should primarily be symptomatic, while surgical removal is required only in life-threatening situations. Tuberous sclerosis is found in half of the patients with rhabdomyomas. AIM The aim of our work was to analyze the cases of rhabdomyoma with neonatal presentation in our hospital. METHODS A retrospective review was performed of the hospital records (cardiovascular examination, radiologic and echocardiographic findings, association with tuberous sclerosis, treatment and follow-up) of all neonates admitted, during the last 12 years, with the diagnosis of rhabdomyoma. RESULTS Six patients were found. All diagnoses were established during the first month of life. One third of our population had associated tuberous sclerosis. In three cases the tumors were multiple and the preferential location was the left ventricle. In only one case was surgical removal indicated because of the presence of life-threatening symptoms but the infant's parents refused consent for the procedure. All the children had regression of the tumoral masses. CONCLUSIONS The natural history of rhabdomyomas is one of spontaneous regression with surgical excision being recommended only in the presence of life-threatening symptoms.
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Affiliation(s)
- A Carriço
- Serviços de Cardiologia Pediátrica e Neonatologia, Hospital de S. João, Porto
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Moura C, Guimarães H, Areias JC, Moreira J. Ebstein's anomaly in neonates. Rev Port Cardiol 2001; 20:865-73. [PMID: 11763598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
Ebstein's anomaly is a rare congenital heart disease abnormality in which the tricuspid valve leaflets do not attach normally to the tricuspid valve annulus. The effective tricuspid valve orifice is displaced apically into the right ventricle (RV), near the junction of the inlet and the trabecular parts of the RV. The authors present a retrospective study of the patients with Ebstein's anomaly admitted to a neonatal intensive care unit, in the period between January 1993 and March 2000. There were ten patients, representing 0.24% of total neonates and 1.99% of total congenital heart disease admitted to the institution in the same period. Fifty per cent were male and only one case had prenatal diagnosis. Holosystolic murmur (100%) from tricuspid regurgitation and cyanosis (80%) were the most frequent clinical findings. Chest X-ray was abnormal in 90% of the neonates, with a "balloon-shaped" enlarged heart. The main electrocardiographic findings were right atrial enlargement (70%) and arrhythmias (40%). Apical displacement of the septal leaflet of the tricuspid valve, to a maximum of 20 mm, and leaflets tethering to underlying RV myocardium were found in all patients. Tricuspid valve regurgitation was found in 90% (severe form in four cases). An atrial intracardiac shunt, mostly right-to-left, was also found in 50%. Digoxin was used (40%) to restore sinus rhythm. Fifty per cent of the neonates received intravenous prostaglandins. Two patients required a surgical procedure. Two patients died in the neonatal period. During the follow-up period (range 0.3-74.6 months), only one episode of supraventricular tachycardia was recorded. At present seven patients are clinically stable, three of them on medication.
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Affiliation(s)
- C Moura
- Serviço de Cardiologia Pediátrica e de Neonatologia Departamento de Pediatria do Hospital de S. João, Porto
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