1
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Silvestre CR, Cavaco M, Afonso R, Alves S, Mateus L, Nunes A, Cordeiro R, Raimundo P, André N, Falcão T, Domingos A. TB infection in healthcare workers - the reality of a Portuguese hospital. Int J Tuberc Lung Dis 2023; 27:874-875. [PMID: 37880881 DOI: 10.5588/ijtld.23.0293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023] Open
Affiliation(s)
| | - M Cavaco
- Centro Hospitalar do Oeste, Torres Vedras
| | - R Afonso
- Agrupamento de Centros de Saúde Oeste Sul, Malveira, Portugal
| | - S Alves
- Centro Hospitalar do Oeste, Torres Vedras
| | - L Mateus
- Centro Hospitalar do Oeste, Torres Vedras
| | - A Nunes
- Centro Hospitalar do Oeste, Torres Vedras
| | - R Cordeiro
- Centro Hospitalar do Oeste, Torres Vedras
| | - P Raimundo
- Centro Hospitalar do Oeste, Torres Vedras
| | - N André
- Centro Hospitalar do Oeste, Torres Vedras
| | - T Falcão
- Centro Hospitalar do Oeste, Torres Vedras
| | - A Domingos
- Centro Hospitalar do Oeste, Torres Vedras
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2
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Marcelino P, Silva JC, Moura CS, Meneses J, Cordeiro R, Alves N, Pascoal-Faria P, Ferreira FC. A Novel Approach for Design and Manufacturing of Curvature-Featuring Scaffolds for Osteochondral Repair. Polymers (Basel) 2023; 15:polym15092129. [PMID: 37177275 PMCID: PMC10181173 DOI: 10.3390/polym15092129] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Osteochondral (OC) defects affect both articular cartilage and the underlying subchondral bone. Due to limitations in the cartilage tissue's self-healing capabilities, OC defects exhibit a degenerative progression to which current therapies have not yet found a suitable long-term solution. Tissue engineering (TE) strategies aim to fabricate tissue substitutes that recreate natural tissue features to offer better alternatives to the existing inefficient treatments. Scaffold design is a key element in providing appropriate structures for tissue growth and maturation. This study presents a novel method for designing scaffolds with a mathematically defined curvature, based on the geometry of a sphere, to obtain TE constructs mimicking native OC tissue shape. The lower the designed radius, the more curved the scaffold obtained. The printability of the scaffolds using fused filament fabrication (FFF) was evaluated. For the case-study scaffold size (20.1 mm × 20.1 mm projected dimensions), a limit sphere radius of 17.064 mm was determined to ensure printability feasibility, as confirmed by scanning electron microscopy (SEM) and micro-computed tomography (μ-CT) analysis. The FFF method proved suitable to reproduce the curved designs, showing good shape fidelity and replicating the expected variation in porosity. Additionally, the mechanical behavior was evaluated experimentally and by numerical modelling. Experimentally, curved scaffolds showed strength comparable to conventional orthogonal scaffolds, and finite element analysis was used to identify the scaffold regions more susceptible to higher loads.
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Affiliation(s)
- Pedro Marcelino
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- CDRSP-Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal-Zona Industrial, 2430-028 Marinha Grande, Portugal
| | - João Carlos Silva
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- CDRSP-Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal-Zona Industrial, 2430-028 Marinha Grande, Portugal
| | - Carla S Moura
- CDRSP-Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal-Zona Industrial, 2430-028 Marinha Grande, Portugal
- Associate Laboratory for Advanced Production and Intelligent Systems (ARISE), 4050-313 Porto, Portugal
- Polytechnic Institute of Coimbra, Applied Research Institute, Rua da Misericórdia, Lagar dos Cortiços-S. Martinho do Bispo, 3045-093 Coimbra, Portugal
| | - João Meneses
- CDRSP-Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal-Zona Industrial, 2430-028 Marinha Grande, Portugal
| | - Rachel Cordeiro
- CDRSP-Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal-Zona Industrial, 2430-028 Marinha Grande, Portugal
- Veterinary Clinics Department, Abel Salazar Biomedical Sciences Institute, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Nuno Alves
- CDRSP-Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal-Zona Industrial, 2430-028 Marinha Grande, Portugal
- Associate Laboratory for Advanced Production and Intelligent Systems (ARISE), 4050-313 Porto, Portugal
- Department of Mechanical Engineering, School of Technology and Management, Polytechnic of Leiria, Morro do Lena-Alto do Vieiro, Apartado 4163, 2411-901 Leiria, Portugal
| | - Paula Pascoal-Faria
- CDRSP-Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal-Zona Industrial, 2430-028 Marinha Grande, Portugal
- Associate Laboratory for Advanced Production and Intelligent Systems (ARISE), 4050-313 Porto, Portugal
- Department of Mathematics, School of Technology and Management, Polytechnic of Leiria, Morro do Lena-Alto do Vieiro, Apartado 4163, 2411-901 Leiria, Portugal
| | - Frederico Castelo Ferreira
- Department of Bioengineering and iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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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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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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Pinto AL, Cordeiro R, Vieira JP, Chaves MM, Mesquita A, Sousa R, Amante S, Dutra S. Weber and Lauge-Hansen Classification of Ankle Fractures: The Importance of Combined Classification. Semin Musculoskelet Radiol 2021. [DOI: 10.1055/s-0041-1731521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Vieira JP, Vieira AC, Pinto AL, Cordeiro R. Colles and Friends: What You Should Tell the Orthopaedic Surgeon. Semin Musculoskelet Radiol 2021. [DOI: 10.1055/s-0041-1731536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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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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Cordeiro R, Kachroo M. Synthesis and biological evaluation of anti-tubercular activity of Schiff bases of 2-Amino thiazoles. Bioorg Med Chem Lett 2020; 30:127655. [PMID: 33130292 DOI: 10.1016/j.bmcl.2020.127655] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 05/28/2020] [Revised: 10/23/2020] [Accepted: 10/24/2020] [Indexed: 12/14/2022]
Abstract
Tuberculosis, an infectious disease, has been reported to cause the death of 1.5 million in 2018. Due to the emergence of Multi-Drug Resistant-TB, Extensively Drug Resistant-TB, and Totally Drug Resistant-TB, many first-line and second-line drugs have been found in-effective. New drugs introduced in TB regimens such as pretomanid, bedaquiline and linezolid have been associated with toxicities. Hence, there is an urgent need for introducing safe and cost-effective antitubercular drugs. In this study, a series of Schiff bases of 2-amino thiazoles were synthesized and evaluated for their anti-tubercular activity against Mycobacterium tuberculosis H37Rv strain by Microplate Alamar Blue assay (MABA) method. N-[4-(2-Amino-thiazol-4-yl)-phenyl]-benzamide derivative with 2-nitro (5c2), 4-hydroxy (5c4) substitution, 2-[4-(2-Amino-thiazol-4-yl)-phenyl]-isoindole-1,3-dione derivatives with 3,4,5-trimethoxy substitution (5b1) and the compound 1-[4-(2-Amino-thiazol-4-yl)-phenyl]-pyrrole-2,5-dione (4a) which is a maleic derivative bearing thiazole ring, exhibited good anti-tubercular activity (MIC 6.25 μg/ml). Drug likeness was also evaluated for all the synthesised compounds using Molinspiration software. All synthesized compounds fulfilled the parameters of the Lipinski rule of five and showed drug-like properties. Through this study, it was proved that thiazole analogues have good anti-tubercular potentials.
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Affiliation(s)
- Rachel Cordeiro
- Department of Pharmaceutical Chemistry, Humera Khan College of Pharmacy, Relief Road, Oshiwara, Jogeshwari West, Pratiksha nagar, Mumbai, Maharashtra 400102, India.
| | - Monica Kachroo
- Head of Department of Pharmaceutical Chemistry, Al-Ameen College of Pharmacy, Opp. Lalbagh Main Gate, Hosur Road, Bengaluru, Karnataka 560027, India.
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Caicedo Roa M, Gabrielle Dalaqua L, Filizola P, Cordeiro R. Quality of life and risk of feminicide in women victims of intimate partner violence in Campinas. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.1115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Violence against women is a public health problem with severe consequences. Most women in situations of domestic violence are emotionally involved and/or economically dependent of their intimate partners contributing to the perpetuation and acceptance of violence.
Objectives
1) To characterize the women who join the Reference and Support Center for Women (Ceamo) in Campinas, Southeast Brazil. 2) To measure the quality of life in women victims of intimate partner violence 3) To determine the risk of feminicide.
Methods
The Ceamo is a public specialized service from the mayor of Campinas, it provides psychological, social and legal guidance to women in situations of gender violence. Inclusion criteria: Women attending Ceamo services, speaking Portuguese, age ≥18 years old and having experienced intimate partner violence. Measure instruments: Danger assessment Scale and WHOQOL-BREF.
Results
During the 11 months of the study, 78 new users were recruited. Average age 38.3 years old, mostly married/stable union, most of them with children (88%). 64% of women do not work and 36% live with the abusive partner. Prevalent types of violence suffered during by the victims in the last year were psychological n = 76, physical n = 62, moral n = 54 and sexual n = 23. The domain most affected in the assessment of quality of life was the environment (average 42% /100%) and psychological domain (42%/100%). 49% of women were classified with increased risk, 22% with severe risk and 1% with extreme risk of femicide. The questions with the most positive answers were those related to believing that the partner can kill her (77%), jealous of the partner (76%) and controlling behavior (73%), being followed/spied by the partner (67%) and threat death (65%).
Conclusions
The service in general receive very vulnerable women with low perception of their own quality of life, precarious material conditions and high risk of femicide.
Key messages
The women in domestic violence situation attended by the Ceamo service are at high risk of femicide. Service users have very low perception of their quality of life and poor social conditions.
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Affiliation(s)
- M Caicedo Roa
- Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | | | - P Filizola
- Municipal mayor of Campinas, Reference and Support Center for Women, Campinas, Brazil
| | - R Cordeiro
- Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
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Roa Caicedo M, Cordeiro R. Trend of deaths from external causes in Campinas, Brazil (2000-2017): Joint Point Regression Analysis. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Deaths from external causes are caused by events or acute exposure to physical, chemicals agents or radiation; also due to the lack of essential agents for survival or injuries caused by oneself or others. The preventable nature of deaths from external causes has been pointed out mainly because there are related to violence.
Objective
To describe the trend and characteristics of mortality from external causes in the city of Campinas, São Paulo, Brazil from 2000 to 2017.
Methods
Descriptive, cross-sectional study. Information sources: The death mortality certificates from the Municipal Health Secretariat's Information System included in the chapter XX of the CID-10. Data analysis: External causes were divided into five groups: transportation, falls, suicides, homicides and others. The Standardized Mortality Coefficient (SMC) per 100,000 inhabitants was calculated taking as a reference the populations of the 2000 and 2010 censuses, stratified by age group and sex. The trend analysis for homicide was performed using a joinpoint regression model.
Results
In Campinas during the studied period occurred 12,175 deaths from external causes (80.4% male, 19.6% female). The most important causes of mortality for men were homicides (50%) and traffic accidents (27%) and for women it was falls (35%), traffic accidents (24%) and homicides (22 %). The SMC trend towards homicides shows a decrease in male events and stability in women homicides. It is noteworthy the lack of change in the trend of the female coefficient, regarding the male SMP, we identify three significant changes in the trend.
Conclusions
The decrease in the number of deaths from external causes in Campinas is principally due to the decrease in homicides in male population. The SMP was able to analyze deaths adjusted to the characteristics of the population, being an important tool for the analysis of deaths from external causes.
Key messages
In Campinas deaths from external causes are important causes of mortality. The Standardized Mortality Coefficient and joint point regression method are useful tools for the analysis of deaths from external causes.
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Affiliation(s)
- M Roa Caicedo
- Department of Collective Health, Faculty of Medical Sciences, Campinas State University - Unicamp, Campinas, Brazil
| | - R Cordeiro
- Department of Collective Health, Faculty of Medical Sciences, Campinas State University - Unicamp, Campinas, Brazil
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Cordeiro R, Jordao L, Pelerito A, de Carvalho IL, Nuncio MS. Implementation of bioterrorism agents diagnosis by electron microscopy in Portuguese reference laboratory. Ultrastruct Pathol 2017. [DOI: 10.1080/01913123.2016.1272645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- R. Cordeiro
- Emergency Response and Biopreparedness Unit, Infectious Diseases Department, National Institute of Health Doutor Ricardo Jorge, Lisboa, Portugal
| | - L. Jordao
- Electron Microscopy Laboratory, Research and Development Unit, Environmental Health Department, National Institute of Health Doutor Ricardo Jorge, Lisboa, Portugal
| | - A. Pelerito
- Emergency Response and Biopreparedness Unit, Infectious Diseases Department, National Institute of Health Doutor Ricardo Jorge, Lisboa, Portugal
| | - I. Lopes de Carvalho
- Emergency Response and Biopreparedness Unit, Infectious Diseases Department, National Institute of Health Doutor Ricardo Jorge, Lisboa, Portugal
| | - M. S. Nuncio
- Emergency Response and Biopreparedness Unit, Infectious Diseases Department, National Institute of Health Doutor Ricardo Jorge, Lisboa, Portugal
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Mafra ACCN, Codeco CT, Cordeiro R, Stephan C, Nucci LB. P1-342 Empirical analysis of the risk estimators in spatial case-control studies using different sample designs. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976f.34] [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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Donalisio MR, Ramalheira RMF, Stephan C, Cordeiro R. Meningococcal Disease Risk Spatialization in a Southeastern Brazilian City. Am J Epidemiol 2006. [DOI: 10.1093/aje/163.suppl_11.s199-a] [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: 11/12/2022] Open
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14
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Santos-Pinto L, Peruchi C, Marker VA, Cordeiro R. Effect of handpiece tip design on the cutting efficiency of an air abrasion system. Am J Dent 2001; 14:397-401. [PMID: 11949801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
PURPOSE The aim of this study was to evaluate the effect of nozzle angle and tip diameter on the cutting efficiency of an air abrasion system. MATERIALS AND METHODS Thirty-six extracted human third molars were air-abraded with the PrepStar microabrasion machine using a handpiece with either 80 degrees or 45 degrees nozzle angles with 0.38 or 0.48 mm tip orifice diameters. The following parameters were held constant: abrasive particle size (27 microm), air pressure (80 psi), distance (2 mm) and duration (15 seconds). The cutting efficiency was compared using enamel, dentin and cementum substrates. Width and depth of the cutting patterns were analyzed and measured using scanning electron micrographs. RESULTS Statistical analysis using three-way ANOVA and Duncan's Multiple Range test revealed that the width of the cuts was significantly greater when the cavities were prepared using the 45 degrees nozzle angle. Significantly deeper cavities were produced with the 80 degrees nozzle angle. The tip orifice of the nozzle influenced the cutting efficiency in softer substrates, dentin and cementum. Precise removal of hard tissue is best accomplished using the 80 degrees angle nozzle tips for all types of tooth surfaces, enamel, dentin and cementum.
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Abstract
The aim of this observational study was to estimate the survival function and risk of death in Botucatu, Southeast Brazil, by occupation. The occupational history of inhabitants of Botucatu who died after their 10th birthday from January 1, 1997, to March 31, 1998, was analyzed, as were the occupational histories of workers' spouses. A total of 992 subjects were studied. Data were analyzed by fitting a proportional hazards model where the time variable was age at death or at time of interview and the main co-variable was occupation. Results showed that risk of death increased consistently as the level of occupational specialization decreased, displaying a 12-year increase in life expectancy for professional as compared to unskilled workers.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, 18618-970, Brasil
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Diaz B, Barreto E, Cordeiro R, Perretti M, Martins M, Silva P. Enhanced serum glucocorticoid levels mediate the reduction of serosal mast cell numbers in diabetic rats. Life Sci 2001; 68:2925-32. [PMID: 11411792 DOI: 10.1016/s0024-3205(01)01087-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rats turned diabetic by treatment with alloxan exhibit a significant reduction in serosal mast cell numbersin parallel with decreased insulin levels in the plasma. Our aim was to investigate the putative involvement of endogenous glucocorticoid hormone in this phenomenon. The findings indicated that rats treated with alloxan responded with an increase in levels of serum corticosterone concomitantly with decreased mast cell numbers in the pleural space. We found that either surgical bilateral adrenalectomy or pretreatment with the steroid antagonist RU 486 (20 mg/kg, i.p.) impaired the drop in pleural mast cell counts in alloxinated rats. Administration of insulin (15 U/kg) prevented the increase in corticosterone levels and restored pleural mast cell levels in diabetic animals. In addition, treatment of naive rats with corticosterone (0.5 mg/kg, s.c.) or dexamethasone (0.1 mg/kg, s.c.), for 3 consecutive days, led to a reduction in the number of mast cells recovered from the pleural cavity as noted in diabetic animals. In contrast, insulin reduced serum corticosterone levels and induced a significant elevation in pleural mast cell numbers in naive rats. We conclude that there is a causative relationship between increased levels of glucocorticoids and down-regulation of mast cell numbers associated with the diabetic state, both phenomena clearly sensitive to insulin.
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Affiliation(s)
- B Diaz
- Departamento de Fisiologia e Farmacodinâmica, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
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Abstract
Homicide has become a major social problem in Brazil in the last two decades. In Greater Metropolitan São Paulo, Southeast Brazil, the proportional incidence of male homicides increased from 35 to 121 (x 10-5) from 1979 to 1998. This study presents the trend in this phenomenon using a set of three-dimensional figures. We show both the absolute number and proportional incidence of male deaths by homicide and the natural logarithm of the male/female relative risk of homicide for Greater Metropolitan São Paulo from 1979 to 1998. Seven 3D figures show the homicide trend by age, sex, and year. The figures show the main trends in homicide distribution in the male population during the study period: a clear predominance among adolescents and young adults, a systematic and sharp increase in that same age range, a systematic spread to the lower (below-18) and higher (above-30) age groups, and a non-negligible incidence above the age of 40.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, 18618-970, Brasil.
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Santos-Pinto L, Peruchi C, Marker VA, Cordeiro R. Evaluation of cutting patterns produced with air-abrasion systems using different tip designs. Oper Dent 2001; 26:308-12. [PMID: 11357575] [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: 04/16/2023]
Abstract
This study assessed cavity preparations produced with different air abrasion tip parameters. Twelve test groups of extracted teeth were prepared to evaluate the parameters of 80 degrees or 45 degrees nozzle angles and 0.38 or 0.48 mm inner tip diameters. All other factors were held constant. A device was made to hold the specimen and air abrasion handpiece that standardized the distance and position relative to the tooth and time of application. The cavities were evaluated by assessing the rounding of the cavosurface margins and cavity floor. Measurements of cavosurface angles and the angle of concavity were made at the deepest portion of the abraded surface using scanning electron micrographs. The cavosurface angles were compared using paired t-test, and the effects of the tip design parameters were analyzed by ANOVA and Duncan's Multiple Range test. From the cavity patterns found in this study, the authors suggest that 80 degrees angle tips are more appropriate than 45 degrees angle tips for making narrow, deep cuts for preventive resin restorations. Conversely, when shallow preparations are needed, as in the case of Class V cavity preparations, cutting patterns of 45 degrees angle tips are more suitable.
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Abstract
OBJECTIVE To describe the effect of design associated with a sample survey carried out to estimate the distribution of occupations within an economic active population. METHODS A cluster sample of households, chosen from a comprehensive directory via systematic random sampling, was performed including 4,782 of all residences in Botucatu, Brazil, between June and July 1997. RESULTS Of the 4,782 households, 17,219 subjects were assessed. Due to the loss of distribution heterogeneity of the occupations within the households, the effect of design found ranged from 1.00 to 1.96. CONCLUSIONS The results suggest that when planning similar studies aiming at estimating the distribution of occupations among economic active populations, the effect of design should be estimated as e=1.50 for surveys in urban areas, and e=2.00 for surveys in rural areas.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil.
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20
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Abstract
OBJECTIVE Occupational studies often use data obtained from proxy respondents. However, few investigations have been conducted on the validity of occupational data provided by workers' surrogates. This study aimed to compare self-reported occupational data to information obtained from next-of-kin, as a contribution to assess the validity of using proxy respondents to obtain information about workers. METHODS Worker/next-of-kin pairs, residents in Southeastern Brazil, were interviewed separately in 1998 about worker's occupational past history. The concordance, sensitivity, and specificity of proxy reports about workers' occupations were examined comparing to self-reports. RESULTS A total of 2.163 worker/next-of-kin pairs were interviewed. The Kappa statistic for the agreement between worker's and next-of-kin's report about the worker's main occupation was 0.86 (CI95%; 0.85 - 0.88). The sensitivity of proxy reports on occupations ranged from 77.5% (64.6% - 90.4%) to 98.9% (97.3% - 100.0%), and specificity ranged from 96. 9% (96.0% - 97.7%) to 99.9% (99.7% - 100.0%). CONCLUSIONS These are encouraging findings for the use of proxy respondents in occupational studies when occupations are considered as categorical variables. However, caution is required when assessing occupational exposition by means of cumulative work time because next-of-kin may underestimates this information.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil.
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21
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Cordeiro R, Olivencia P ER, Cardoso CF, Cortez DB, Kakinami E, Souza JJ, Souza MT, Fernandes RA, Guercia RF, Adoni T. [Mortality risk measure inequalities among workers in Southeast Brazil]. Rev Saude Publica 1999; 33:593-601. [PMID: 10689376 DOI: 10.1590/s0034-89101999000600011] [Citation(s) in RCA: 9] [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: 11/22/2022] Open
Abstract
INTRODUCTION The main causes of illness and death in Brazil have been migrating backwards into the younger population during the last few years, increasing especially in the more productive age groups. Given the relationship between work and health/disease process, the hypothesis to be considered is that this phenomenon is partially due to the deterioration of workplace conditions. To contribute to investigating this hypothesis, this study estimates mortality risk indicators for the population of Botucatu, in the Southeast region of Brazil, classified according to their occupation. METHODS Standardized mortality coefficient, standardized risk ratio, and years of potential life lost were calculated for the inhabitants of Botucatu who died after their 10th birthday, between January 1997 and March 1998, and classified according to their occupation and main cause of death. Occupational and medical information was obtained by interviewing families of the deceased and their doctors, and checking medical files. RESULTS The standardized mortality coefficient ranged from 0.6 to 39.9 deaths/1000 workers in different occupations. The years of potential life lost ranged form 33 to 334 years/1000 workers. The ranking of causes of death varied according to occupation and the mortality risk considered. CONCLUSION The risk measures analyzed showed a high heterogeneity when associated to occupation and causes of death, which reflects the great social inequality existing in the studied population.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, da Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
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Cordeiro R, Peñaloza ER, Cardoso CF, Cortez DB, Kakinami E, Souza JJ, Souza MT, Fernandes RA, Guercia RF, Adoni T. [Validity of information on occupation and principal cause on death certificates in Botucatu, Sao Paulo]. CAD SAUDE PUBLICA 1999; 15:719-28. [PMID: 10633194 DOI: 10.1590/s0102-311x1999000400006] [Citation(s) in RCA: 10] [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: 11/22/2022] Open
Abstract
The aim of this paper was to evaluate the accuracy of data on death certificates for occupation and main cause of death. Measure of agreement was assessed comparing data from death certificates with those from both medical records and next-of-kin interviews, analyzing information for 552 residents of Botucatu, Southeast Brazil, who died in 1997. Kappa coefficients of 0.31 (95% C.I. 0. 29-0.34) and 0.76 (95% C.I. 0.75-0.76) were obtained for data on occupation and main cause of death, coded by a Brazilian two-digit classification and the three-digit ICD-10 classification, respectively. One can conclude that, although quality of the main cause of death is acceptable for pilot studies, data on occupation taken only from death certificates is not accurate enough to be used in epidemiological research.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu, Universidade Estadual de São Paulo, C. P. 543, Botucatu, SP 18618-970, Brasil
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23
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Abstract
Diastolic blood pressure was viewed as a generic indicator of aging, and its association with cumulative work time was studied after controlling for age as a potential confounding factor. The study was conducted among production line workers at a Brazilian tannery in July 1993. The association between diastolic blood pressure and cumulative work time was verified by fitting a second-order linear regression model, where diastolic blood pressure was a function of worker's age and cumulative work time. By fitting the model, one can predict that, from the beginning of working life at the tannery, on average each 1-year period is associated with an increase of about 1. 5 mmHg in diastolic blood pressure. The fit obtained highlights a component directly associated with work as part of the rate of pressure increase in the study group. This component is twice as high as that directly associated with age.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Universidade Estadual Paulista, C. P. 543, Botucatu, SP 18618-970, Brasil
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Abstract
INTRODUCTION Cardiovascular diseases have been shown to be the leading cause of death in Brazil since the 1970s. High blood pressure has been the major risk factor among the above mentioned diseases. A negative correlation between occupational qualification and blood pressure has been observed among workers. The above mentioned facts bring out the importance of the knowledge of high blood pressure distribution among the different occupational groups. The aim of the present study was to describe the distribution of blood pressure in stable and homogeneous population of unskilled, low wage earning industrial workers. The Prevalence of high blood pressure was established for this specific group. This prevalence was also related to some biological and socio-economical covariates as compared with that among other occupational groups in Brazil. METHOD The subjects were 73 active employees at a tannery in Botucatu, state of S. Paulo, Brazil, in July 1993. These subjects underwent blood pressure measurements, anamnesis and clinical examination. The results were compared with those of similar studies carried out in elsewhere Brazil. Age confounding was controlled by different techniques. RESULT The crude prevalence of high blood pressure detected in this group of workers was of 56.1%, with 15.8% of isolated systolic hypertension. Alcohol abuse and smoking were associated with high blood pressure and isolated systolic hypertension in the population studied. DISCUSSION Prevalence of hypertension in the group studied is significantly higher than that observed in other groups of workers studied in Brazil. Such a finding points to the need for further investigation so as to isolate those factors involved in the increased blood pressure found in this group.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina, Universidade Estadual Paulista, Botucatu, SP, Brasil.
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25
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Perez S, Machado J, Cordeiro R, Martins M, Borojevic R, Silva P. Inhibition by the anti-mitotic drug doxorubicin of platelet-activating-factor-induced late eosinophil accumulation in rats. Eur J Pharmacol 1998; 356:239-43. [PMID: 9774255 DOI: 10.1016/s0014-2999(98)00541-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Platelet-activating factor (PAF) has been shown, in the rat model of pleural inflammation, to induce the generation of an intermediate proteic factor able to cause eosinophil proliferation in vitro. This study was undertaken to investigate the effect of the anti-mitotic compound doxorubicin on PAF-induced eosinophilia in rats, in order to evaluate the contribution of local cell proliferation to this phenomenon. The late eosinophil infiltration caused by another chemoattractant leukotriene B4 was used for comparison. We observed that local treatment with doxorubicin (20 and 40 microg/cavity), given 6 h after PAF (1 microg/cavity), suppressed the eosinophil accumulation within 24 h, whilst only the higher dose was effective when the drug was given 12 h post-PAF. An effect on chemotaxis was ruled out, since local doxorubicin (40 microg/cavity) failed to modify the eosinophil migration noted 24 h after leukotriene B4 (0.5 microg/cavity) and the neutrophil/eosinophil infiltration noted at 6 h after PAF injection. Transfer of the pleural fluids collected 6 h after PAF from donors to recipient rats caused significant eosinophil accumulation in the recipient rats, an effect which was inhibited by the co-administration of doxorubicin (40 microg/cavity). No inhibitory effect was noted when the drug was given 6 h after the pleural fluids were transferred. We also found no change in the number of blood or bone marrow eosinophils after PAF stimulation. We conclude that doxorubicin selectively impaired the late eosinophil accumulation triggered by PAF in the pleural cavity of rats, clearly indicating that local cell proliferation seems to contribute to the development of this inflammatory response.
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Affiliation(s)
- S Perez
- Departamento de Fisiologia e Farmacodinâmica, Instituto Oswaldo Cruz, Manguinhos, Brazil
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26
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Mermelstein CS, Benchimol M, Taffarel M, Cristina M, Cordeiro R, Chagas C, Moura Neto V. Desmin and actin filaments in membrane-cytoskeletal preparations of the electric tissue of Electrophorus electricus, L. Arch Histol Cytol 1997; 60:445-52. [PMID: 9477153 DOI: 10.1679/aohc.60.445] [Citation(s) in RCA: 3] [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: 02/06/2023]
Abstract
The electrocyte of the electric organ of the electric eel, Electrophorus electricus, L was investigated by light and electron microscopy as well as immuno-electron microscopy, in order to clarify the fine structures and distribution of cytoskeleton filaments and their relations to proteins, especially desmin and actin. Cytoskeleton-enriched fractions of the electrocytes were analysed with SDS-PAGE. It was verified that a meshwork of filaments was distributed in the electrocytes, more abundantly in the anterior than in the posterior part of the cell, and that this could be associated with membrane invaginations. Desmin and actin were the components of this meshwork, suggesting that desmin intermediate filaments and actin filaments might play a role in the maintenance of the morphology of electrocytes and, as an intracellular filamentous meshwork, they may contribute to the organization of the components of membranes and papillae formation on the anterior face of the electrocytes.
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Affiliation(s)
- C S Mermelstein
- Departamento de Histologia e Embriologia, Instituto de Ciências Biomédicas, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Brazil
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Cordeiro R, Lima Filho EC, Salgado PE, Santos CO, Constantino L, Malatesta ML. [Neurological disorders in workers with low levels of lead in the blood. II--Neuropsychological disorders]. Rev Saude Publica 1996; 30:358-63. [PMID: 9201897 DOI: 10.1590/s0034-89101996000400009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 02/04/2023] Open
Abstract
This is a cross-sectional study with a randomized choice of individuals aiming at studying the validity of the Brazilian biological exposure limits applied to lead level in the blood (PbB) and delta-aminolevulinic acid in the urine (ALAU), which are 60 mu/dl and 10 mg/g.creat., respectively. Thus, twenty workers, whose PbB and ALAU values have been below these limits over the past two years, were selected at random at a battery plant in the State of S. Paulo, Brazil. The workers were submitted to a variation of the WHO Neurobehavioral Core Test Battery. The results were compared with those obtained for workers of a control group also chosen at random. The lead workers showed memory, mood and motor coordination disorders. Comparing these results with those obtained from the control group, a significant difference was observed (p-value < 0.02). The results indicate that the Brazilian biological exposure limits above should be reconsidered.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública da Faculdade de Medicina de Botucatu, SP, Brasil.
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Lopes-Martins R, Catelli M, Araújo C, Estato V, Cordeiro R, Tibiriçá E. Pharmacological evidence of a role for platelet activating factor as a modulator of vasomotor tone and blood pressure. Eur J Pharmacol 1996; 308:287-94. [PMID: 8858301 DOI: 10.1016/0014-2999(96)00310-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [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: 02/02/2023]
Abstract
The purpose of the present study was to investigate the role of platelet-activating factor (PAF, 1-O-hexadecyl-2-acetyl-sn-glyceryl-3-phosphorylcholine), a phospholipid mediator synthesized by endothelial and smooth muscle cells, in the modulation of vascular tone and blood pressure. In pentobarbitone-anaesthetised rabbits, unloading of the carotid sinus baroreceptors by a bilateral carotid artery occlusion elicited a reflex rise in arterial pressure which was markedly potentiated by pretreating the animals with the PAF receptor antagonists WEB 2086 [3-4-(2-chlorphenyl)-9-methyl-6H-thieno-3,2f-1,2,4-triazolo-4, 3 a-1,4-diazepin-2-yl-(4-morpholinyl)-I-propanone; 2, 5 or 10 mg kg-1, i.v.] or BN 52021 (ginkgolide B; 0.1, 0.3 or 1.0 mg kg-1, i.v.). The increases in systemic vascular resistance induced by noradrenaline (30 micrograms kg-1, i.v.) or by the central activation of the sympathetic nervous system with glutamate (1 mg kg-1, intracerebroventricular) were also significantly potentiated in animals pretreated with WEB 2086 (5 mg kg-1, i.v.). In contrast, pretreatment with the cyclooxygenase inhibitor indomethacin (3 mg kg-1, i.v.) did not affect the haemodynamic actions of noradrenaline, thus excluding the possibility that prostacyclin may modulate the potentiating effect. To further confirm that PAF is released during systemic vasoconstriction, the cardiovascular PAF receptors were desensitized by the daily administration of PAF (3 micrograms kg-1, i.v.) for seven days. This procedure significantly reduced the intensity and duration of the hypotensive response to a subsequent PAF injection (3 micrograms kg-1, i.v.). In desensitized animals, the hypertensive response to bilateral carotid artery occlusion was potentiated to the same extent as in the animals treated with PAF receptor antagonists. Inhibition of PAF biosynthesis by pretreatment of the animals with the phospholipase A2 inhibitor mepacrine (5 mg kg-1, i.v.) also enhanced the increase in blood pressure elicited by carotid artery occlusion. We conclude that PAF is involved in the acute but not basal modulation of vasomotor tone and, hence, arterial pressure, probably by a negative feedback mechanism triggered by important increases in the vascular tone.
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Affiliation(s)
- R Lopes-Martins
- Departamento de Fisiologia e Farmacodinâmica, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
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29
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Abstract
This is a cross-sectional study with a randomized choice of individuals aiming at studying the validity of the Brazilian biological exposure limits applied to lead level in the blood (PbB) and delta-aminolevulinic acid in the urine (ALAU), which are 60 micrograms/dl and 10 mg/g.creat., respectively. For this purpose, twenty workers, whose PbB and ALAU values have been below these limits over the past two years, were selected at random at a battery production plant in the State of S. Paulo, Brazil. The workers were submitted to a peripheral nerve conduction study. The results were compared with those obtained for workers of a control group also chosen at random. The lead workers showed a decrease in the velocity conduction of the radial nerves. Comparing this group with a randomized control group, a significant difference was observed (p-value = 0.0067). The results suggest that the Brazilian biological exposure limits above should be rearranged.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública da Faculdade de Medicina de Botucatu, SP-Brasil.
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30
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Cordeiro R, Lima-Filho EC. A inadequação dos valores dos limites de tolerância biológica para a prevenção da intoxicação profissional pelo chumbo no Brasil. CAD SAUDE PUBLICA 1995; 11:177-86. [PMID: 14528325 DOI: 10.1590/s0102-311x1995000200002] [Citation(s) in RCA: 9] [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] [Indexed: 11/22/2022] Open
Abstract
São revisados os trabalhos que, a partir de 1975,estudaram a ocorrência de manifestações neurológicas centrais e periféricas em trabalhadores ocupacionalmente expostos ao chumbo, que apresentavam níveis de exposição supostamente insuficientes para causarem Saturnismo. A partir da revisão realizada é sugerido que os limites de tolerância biológica utilizados em nosso meio para firmar o diagnóstico de intoxicação profissional pelo chumbo devam ser revistos. Tal sugestão baseia-se na existência de evidências bem estabelecidas que apontam disfunções da condução nervosa periférica e central, além de alterações de várias funções nervosas superiores, em trabalhadores profissionalmente expostos ao chumbo que apresentam indicadores de efeito biológico e indicadores de exposição inferiores aos limites estabelecidos pela legislação brasileira.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, 18618-970, Brasil
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Cordeiro R, Lima-Filho EC, Nascimento LC. Associação da perda auditiva induzida pelo ruído com o tempo acumulado de trabalho entre motoristas e cobradores. CAD SAUDE PUBLICA 1994; 10:210-21. [PMID: 14762562 DOI: 10.1590/s0102-311x1994000200008] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Através da técnica da regressão linear múltipla, estudou-se a relação existente entre a perda auditiva induzida pelo ruído e as variáveis "tempo total acumulado de trabalho como condutor de veículos coletivos urbanos", "pressão arterial diastólica" e "idade", em uma população de 278 motoristas e cobradores usuários de um serviço de saúde ocupacional da cidade de Campinas, estado de São Paulo (Brasil). Os principais resultados encontrados foram uma associação positiva entre a perda auditiva e o tempo acumulado de trabalho, bem como a existência de uma interação entre esta variável e a idade dos condutores.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu, Botucatu, SP, 18618-000, Brasil
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32
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Cordeiro R, Lima Filho EC, Fischer FM, Moreira Filho DC. [Diastolic blood pressure associated with accumulated work time among drivers and collectors]. Rev Saude Publica 1993; 27:363-72. [PMID: 8209170 DOI: 10.1590/s0034-89101993000500007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The relationship between diastolic blood pressure and the variables "total cumulative working time" and "age" was examined by regression analysis. The study was carried out among 839 bus drivers and conductors, users of an occupational health center in Campinas, S. Paulo State, Brazil. The main results were a positive association between diastolic blood pressure and cumulative working time, as well as an interaction between this variable and the bus worker's age.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu (UNESP), SP, Brasil
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33
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Abstract
Scientific reports on Arterial Blood Hypertension for the period from 1970 to 1989 are reviewed, with special reference to its epidemiological focusing among workers. The knowledge gained and the theoretical and methodological advances associated with it are assessed.
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Affiliation(s)
- R Cordeiro
- Departamento de Saúde Pública, Faculdade de Medicina de Botucatu (UNESP), SP, Brasil
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Zuany-Amorim C, Pretolani M, Leduc D, Cordeiro R, Vargaftig BB. Lung responsiveness to antigen in sensitised mice of different strains. Agents Actions 1993; 38 Spec No:C105-7. [PMID: 7686321 DOI: 10.1007/bf01991152] [Citation(s) in RCA: 2] [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: 01/26/2023]
Abstract
A new model of the isolated perfused lung from different strains of mice was developed. Lungs from Swiss, Balb/C and CBA mice actively sensitised to ovalbumin were challenged intratracheally (i.t.) by antigen on day 14. In Swiss mice instillation of ovalbumin led to the release of leukotriene (LT) C4 significantly above basal values. Conversely, lungs from Balb/C and CBA mice were unresponsive to ovalbumin in terms of production of LTC4. All strains failed to release histamine when challenged with antigen. Intratracheal instillation of platelet-activating factor (PAF), to lungs from non-sensitised animals, induced the release of comparable amounts of LTC4, irrespective of the strain. In contrast, i.t. administration of fMLP to lungs from Swiss mice elicited release of significantly higher amounts of LTC4 as compared to Balb/C and CBA mice. In separate experiments, ovalbumin was injected into the paws and anaphylactic oedema was evaluated. Balb/C and CBA required 1 microgram to show an oedema formation, whereas the dose of ovalbumin for Swiss mice to develop a similar response was at least 30-fold lower. In conclusion, antigen provocation induced release of LTC4 from lungs from Swiss mice but not from Balb/C or CBA. This difference may be accounted for by strain-dependent factors, such as antibody production and requires further investigation.
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Affiliation(s)
- C Zuany-Amorim
- Unité de Pharmacologie Cellulaire, INSERM 285, Paris, France
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Garcez Do Carmo L, Cordeiro R, Lagente V, Lefort J, Randon J, Vargaftig BB. Failure of a combined anti-histamine and anti-leukotriene treatment to suppress passive anaphylaxis in the guinea-pig. Int J Immunopharmacol 1986; 8:985-95. [PMID: 2879805 DOI: 10.1016/0192-0561(86)90101-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Ovalbumin was used to trigger passive systemic anaphylactic shock in guinea-pigs treated with serum provided by actively sensitized animals. Shock was characterized by bronchoconstriction and hypotension, accompanied by leukopenia and moderate thrombocytopenia. Neither aspirin, a cyclooxygenase inhibitor, FPL 55712, a peptido-leukotriene antagonist, nor their combination interfered with shock, under conditions where the selective histamine antagonist mepyramine, up to 20 micrograms/kg, suppressed bronchoconstriction. When the animals were treated with the beta-adrenergic antagonist propranolol, mepyramine lost its activity, even if combined with aspirin and FPL 55712. Lungs provided by the sensitized animals secreted histamine and formed thromboxane A2 when challenged with ovalbumin, but failed to do so when the lungs were collected after systemic shock; demonstrating that in vivo desensitization involves direct effects on the lungs. Parenchyma lung strips from the sensitized animals and lung strips and trachea from non-sensitized animals placed together in an organ bath contracted when exposed to the antigen in presence of mepyramine. The contraction of the sensitized strips was not affected by FPL 55712 nor by the lipoxygenase inhibitors nordihydroguarietic acid and BW755c, but the responses of the non-sensitized tissues were suppressed, demonstrating that, apart from peptido-leukotrienes, parenchyma lung strips from passively sensitized animals generate a leukotriene and histamine-independent contracting activity. Histamine and peptido-leukotrienes do not account for the totality of passive anaphylactic shock in the guinea-pig.
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Cordeiro R. [Tobacco and alveolar macrophages]. Bronchopneumologie 1980; 30:392-403. [PMID: 7459647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Cordeiro R. [Hepatic intervention in metabolism of iron]. J Med (Oporto) 1965; 58:813-36. [PMID: 5215230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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