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Pires MA, Pastrana LM, Fuciños P, Abreu CS, Oliveira SM. Sensorial Perception of Astringency: Oral Mechanisms and Current Analysis Methods. Foods 2020; 9:E1124. [PMID: 32824086 PMCID: PMC7465539 DOI: 10.3390/foods9081124] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 01/12/2023] Open
Abstract
Understanding consumers' food choices and the psychological processes involved in their preferences is crucial to promote more mindful eating regulation and guide food design. Fortifying foods minimizing the oral dryness, rough, and puckering associated with many functional ingredients has been attracting interest in understanding oral astringency over the years. A variety of studies have explored the sensorial mechanisms and the food properties determining astringency perception. The present review provides a deeper understanding of astringency, a general view of the oral mechanisms involved, and the exciting variety of the latest methods used to direct and indirectly quantify and simulate the astringency perception and the specific mechanisms involved.
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Affiliation(s)
- Mariana A. Pires
- International Iberian Nanotechnology Laboratory—Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (M.A.P.); (L.M.P.); (P.F.)
- Center for Microelectromechanical Systems, University of Minho, Azurém, 4800-058 Guimarães, Portugal;
| | - Lorenzo M. Pastrana
- International Iberian Nanotechnology Laboratory—Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (M.A.P.); (L.M.P.); (P.F.)
| | - Pablo Fuciños
- International Iberian Nanotechnology Laboratory—Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (M.A.P.); (L.M.P.); (P.F.)
| | - Cristiano S. Abreu
- Center for Microelectromechanical Systems, University of Minho, Azurém, 4800-058 Guimarães, Portugal;
- Physics Department, Porto Superior Engineering Institute, ISEP, 4200-072 Porto, Portugal
| | - Sara M. Oliveira
- International Iberian Nanotechnology Laboratory—Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (M.A.P.); (L.M.P.); (P.F.)
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2
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Abstract
We analyze a set of discrete-time quantum walks for which the displacements on a chain follow binary aperiodic jumps according to three paradigmatic sequences: Fibonacci, Thue-Morse, and Rudin-Shapiro. We use a generalized Hadamard coin, C[over ̂]_{H}, as well as a generalized Fourier coin, C[over ̂]_{K}. We verify the QW experiences a slowdown of the wave packet spreading, σ^{2}(t)∼t^{α}, by the aperiodic jumps whose exponent, α, depends on the type of aperiodicity. Additional aperiodicity-induced effects also emerge, namely, (1) while the superdiffusive regime (1<α<2) is predominant, α displays an unusual sensibility with the type of coin operator where the more pronounced differences emerge for the Rudin-Shapiro and random protocols and (2) even though the angle θ of the coin operator is homogeneous in space and time, there is a nonmonotonic dependence of α with θ. Fingerprints of the aperiodicity in the hoppings are also found when distributional measures such as the Shannon and von Neumann entropies, the Inverse Participation Ratio, the Jensen-Shannon dissimilarity, and the kurtosis are computed, which allow assessing informational and delocalization features arising from these protocols and understanding the impact of linear and nonlinear correlations of the jump sequence in a quantum walk as well. Finally, we argue the spin-lattice entanglement is enhanced by aperiodic jumps.
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Affiliation(s)
- M A Pires
- Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro/RJ, Brazil
| | - S M Duarte Queirós
- Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro/RJ, Brazil.,National Institute of Science and Technology for Complex Systems, Brazil
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3
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Pires MA, Rodrigues NFS, de Oliveira DB, de Assis FL, Costa GB, Kroon EG, Mota BEF. In vitro susceptibility to ST-246 and Cidofovir corroborates the phylogenetic separation of Brazilian Vaccinia virus into two clades. Antiviral Res 2018; 152:36-44. [PMID: 29427676 DOI: 10.1016/j.antiviral.2018.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/29/2018] [Accepted: 02/05/2018] [Indexed: 01/01/2023]
Abstract
The Orthopoxvirus (OPV) genus of the Poxviridae family contains several human pathogens, including Vaccinia virus (VACV), which have been implicating in outbreaks of a zoonotic disease called Bovine Vaccinia in Brazil. So far, no approved treatment exists for OPV infections, but ST-246 and Cidofovir (CDV) are now in clinical development. Therefore, the objective of this work was to evaluate the susceptibility of five strains of Brazilian VACV (Br-VACV) to ST-246 and Cidofovir. The susceptibility of these strains to both drugs was evaluated by plaque reduction assay, extracellular virus's quantification in the presence of ST-246 and one-step growth curve in cells treated with CDV. Besides that, the ORFs F13L and E9L were sequenced for searching of polymorphisms associated with drug resistance. The effective concentration of 50% (EC50) from both drugs varies significantly for different strains (from 0.0054 to 0.051 μM for ST-246 and from 27.14 to 61.23 μM for CDV). ST-246 strongly inhibits the production of extracellular virus for all isolates in concentrations as low as 0.1 μM and it was observed a relevant decrease of progeny production for all Br-VACV after CDV treatment. Sequencing of the F13L and E9L ORFs showed that Br-VACV do not present the polymorphism(s) associated with resistance to ST-246 and CDV. Taken together, our results showed that ST-246 and CDV are effective against diverse, wild VACV strains and that the susceptibility of Br-VACV to these drugs mirrored the phylogenetic split of these isolates into two groups. Thus, both ST-246 and CDV are of great interest as compounds to treat individuals during Bovine Vaccinia outbreaks in Brazil.
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Affiliation(s)
- Mariana A Pires
- Laboratório de Microbiologia Clínica, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais (UFMG), Avenida Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, Brazil
| | - Nathália F S Rodrigues
- Laboratório de Microbiologia Clínica, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais (UFMG), Avenida Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, Brazil
| | - Danilo B de Oliveira
- Laboratório de Vírus, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Avenida Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, Brazil
| | - Felipe L de Assis
- Laboratório de Vírus, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Avenida Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, Brazil
| | - Galileu B Costa
- Laboratório de Vírus, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Avenida Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, Brazil
| | - Erna G Kroon
- Laboratório de Vírus, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Avenida Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, Brazil
| | - Bruno E F Mota
- Laboratório de Microbiologia Clínica, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais (UFMG), Avenida Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, Brazil.
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Gil da Costa RM, Peleteiro MC, Pires MA, DiMaio D. An Update on Canine, Feline and Bovine Papillomaviruses. Transbound Emerg Dis 2016; 64:1371-1379. [PMID: 27615361 DOI: 10.1111/tbed.12555] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Indexed: 12/14/2022]
Abstract
Over recent years, a growing number of papillomaviruses have been identified, which cause a wide range of lesions in domestic and wild animals. Papillomavirus-induced lesions may have a great impact on animal health, and some diseases observed in farm animals are associated with significant economic losses. This concise review brings together recent advancements on animal papillomavirus research, providing the scientific community and veterinary practitioners with an update on this rapidly evolving field. Among others, bovine, canine and feline papillomaviruses (BPV, CPV and FcaPV) are most extensively discussed, in view of the recent discovery of new viral types and their worldwide importance for animal health. Feline papillomaviruses 2 is an emerging, highly prevalent pathogen in domestic cats, associated with a subset of malignant skin lesions. Aspects related to cross-species infection by BPV and its environmental co-factors are also addressed. Animal papillomaviruses are also fascinating models for studying molecular and cell biology and have recently inspired some major breakthroughs. Overall, it is clear that additional, international and systematic efforts are needed to clarify which lesions are caused by which viral types and to develop experimental models for studying animal papillomavirus.
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Affiliation(s)
- R M Gil da Costa
- LEPABE, Chemical Engineering Department, Faculty of Engineering, University of Porto (FEUP), Porto, Portugal.,Molecular Oncology and Viral Pathology Group, CI-IPOP, Portuguese Institute of Oncology, Porto, Portugal
| | - M C Peleteiro
- Faculty of Veterinary Medicine, CIISA, University of Lisbon, Lisboa, Portugal
| | - M A Pires
- Veterinary Sciences Department, CECAV, University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
| | - D DiMaio
- Department of Genetics, Yale School of Medicine, New Haven, CT, USA.,Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA.,Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT, USA.,Yale Cancer Center, New Haven, CT, USA
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5
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Matos AC, Andrade S, Figueira L, Matos M, Pires MA, Coelho AC, Pinto ML. Mesenteric lymph node granulomatous lesions in naturally infected wild boar (Sus scrofa) in Portugal--Histological, immunohistochemical and molecular aspects. Vet Immunol Immunopathol 2016; 173:21-6. [PMID: 27090622 DOI: 10.1016/j.vetimm.2016.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 03/16/2016] [Accepted: 03/22/2016] [Indexed: 11/25/2022]
Abstract
Several studies have demonstrated that wildlife reservoirs of mycobacteria are responsible for the maintenance and spreading of the infection to livestock and wildlife counterparts. Recent data report the role of wild boar (Sus scrofa) as a reservoir for Mycobacterium bovis. This study was conducted to evaluate the chronic inflammatory response in the mesenteric lymph nodes (MLN) of wild boar with granulomatous lymphadenitis (n=30). Morphological parameters of the lesions were recorded. The expression of CD3 and CD79α molecules was evaluated by immunohistochemistry. Molecular genotyping and culture to identify mycobacteria were performed. The lesions consisted mainly of stage III and stage IV granulomas. CD3 and CD79α positive cells were observed in 15 (50%) and in 11 (36.6%) MLN, respectively. In these lesions, higher percentages of T lymphocytes were found and a limited number of animals exhibited a tendency for an increased percentage of B lymphocytes. Our results suggest that there are similar percentages and distribution patterns of CD3 and CD79α in the lesions, regardless of the presence of Mycobacterium avium subsp. paratuberculosis (Map), M. bovis or Map-M. bovis co-infection, and confirm that wild boar is both susceptible and could be an important Map and M. bovis wild reservoir in the study area.
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Affiliation(s)
- A C Matos
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal; Escola Superior Agrária, Instituto Politécnico de Castelo Branco, Castelo Branco, Portugal.
| | - S Andrade
- Departamento de Ciências Veterinárias, Universidade de Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - L Figueira
- Escola Superior Agrária, Instituto Politécnico de Castelo Branco, Castelo Branco, Portugal
| | - M Matos
- Departamento de Genética e Biotecnologia, Centro de Genómica e Biotecnologia, Instituto de Biotecnologia e Bioengenharia, Universidade de Trás-os-Montes e Alto Douro, Portugal
| | - M A Pires
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal; Departamento de Ciências Veterinárias, Universidade de Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - A C Coelho
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal; Departamento de Ciências Veterinárias, Universidade de Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - M L Pinto
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal; Departamento de Ciências Veterinárias, Universidade de Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
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6
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Saraiva AL, Payan-Carreira R, Gärtner F, Faria F, Lourenço LM, Pires MA. Changes in c-erbB-2 Immunoexpression in Feline Endometrial Adenocarcinomas. Reprod Domest Anim 2015; 51:33-9. [PMID: 26638806 DOI: 10.1111/rda.12642] [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] [Received: 08/06/2015] [Accepted: 10/23/2015] [Indexed: 11/30/2022]
Abstract
Human epidermal growth factor receptor type 2 (c-erbB-2), an oncoprotein with potential prognostic marker and therapeutic use, is overexpressed in several human and animal tumours. But information regarding this molecule in feline tumours is scarce. This study aimed to assess the changes in the immunohistochemical expression of c-erbB-2 in feline endometrial adenocarcinomas (FEA) compared to normal endometrium. An immunohistochemistry assay using a specific antibody against c-erbB-2 was performed in FEA samples (n = 34) and in normal endometrium in the follicular (FS; n = 12) and luteal (LS; n = 11) stages. In FEA, the c-erbB-2 immunoexpression was assessed in neoplastic epithelial cells whilst in normal endometria it was individually evaluated in the surface and the superficial and deep glandular epithelia (SE, SGE and DGE, respectively). In FS and in LS, all the epithelia were positive for c-erbB-2; positivity was higher in the SE and the SGE than in DGE. Twenty of the 34 FEA samples (58.8%) were positive for c-erbB-2 immunolabelling. Nevertheless, its expression was higher in all the epithelia in the FS compared to FEA (p ≤ 0.0001) or the LS (p = 0.016). The results presented herein suggest that c-erbB-2 molecule is differently expressed in the feline endometrium through the oestrous cycle and though it may also be involved in feline endometrial carcinogenesis, a question remains unanswered on the importance of additional pathways of epithelial proliferation in the neoplastic changes in feline endometrium.
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Affiliation(s)
- A L Saraiva
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal.,Escola Universitária Vasco da Gama (EUVG), Coimbra, Portugal
| | - R Payan-Carreira
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - F Gärtner
- Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto, Portugal
| | - F Faria
- Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
| | - L M Lourenço
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - M A Pires
- CECAV, Centro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal
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7
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Pires MA, Payan-Carreira R. Resident Macrophages and Lymphocytes in the Canine Endometrium. Reprod Domest Anim 2015; 50:740-9. [DOI: 10.1111/rda.12567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 06/07/2015] [Indexed: 12/23/2022]
Affiliation(s)
- MA Pires
- CECAV; Universidade de Trás-os-Montes e Alto Douro; Vila Real Portugal
| | - R Payan-Carreira
- CECAV; Universidade de Trás-os-Montes e Alto Douro; Vila Real Portugal
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8
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Ramos MA, Gonçalves JFM, Batista S, Costas B, Pires MA, Rema P, Ozório ROA. Growth, immune responses and intestinal morphology of rainbow trout (Oncorhynchus mykiss) supplemented with commercial probiotics. Fish Shellfish Immunol 2015; 45:19-26. [PMID: 25865055 DOI: 10.1016/j.fsi.2015.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/24/2015] [Accepted: 04/01/2015] [Indexed: 06/04/2023]
Abstract
The influence of two commercial probiotics on the growth, innate immune parameters and intestinal morphology of rainbow trout (Oncorhynchus mykiss) juveniles (initial weight: 16.4 ± 0.4 g) was evaluated. Two probiotic types: A, multi-species (Bacillus sp., Pedicoccus sp., Enterococcus sp., Lactobacillus sp.) and B, mono-species (Pediococcus acidilactici) were tested at two levels each (A1: 1.5 g kg(-1), 8.6 × 10(5) CFU g(-1); A2: 3 g kg(-1), 1.6 × 10(6) CFU g(-1); B1: 0.1 g kg(-1), 2.6 × 10(4) CFU g(-1); B2: 0.2 g kg(-1), 7.2 × 10(4) CFU g(-1)) versus an unsupplemented diet (C). Diets were distributed to sextuplicate tanks, three times a day to visual satiation for 8 weeks. Growth performance and immune responses (plasma lysozyme, ACH50, peroxidase and head kidney respiratory burst) were determined at 4 and 8 weeks of feeding. Body composition and intestine morphology were determined at the end of the feeding trial. At 8 weeks, the lower dose of multi-species probiotic (A1) improved growth rate, while both probiotic types improved feed conversion rate compared to the control animals, at the lower dose of multi-species (A1) and at the higher dose of mono-species (B2) probiotics. Body composition did not vary between treatments. At 4 weeks, ACH50 activity was significantly higher in fish fed higher dose of B probiotic (B2, 123.7 ± 50.6 vs 44.1 ± 7.7 U.ml(-1) in control). At 8 weeks, lysozyme activity was higher in fish fed A1 (13.1 ± 5.2 μg ml(-1)) diet compared to fish fed control diet (7.8 ± 1 μg ml(-1)). Plasma peroxidase and head-kidney respiratory burst did not differ among the dietary treatments. Villi length and integrity and goblet cell counting of a cross section of the anterior intestine were not significantly different between groups. Results suggest benefits in zootechnical performance and immune humoral responses using both probiotic types, in a dose dependent manner, without apparent alterations in intestinal morphology.
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Affiliation(s)
- M A Ramos
- CIIMAR/CIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; Instituto Politécnico de Coimbra, ESAC, Escola Superior Agrária de Coimbra, Bencanta, 3040-316 Coimbra, Portugal; CECAV-UTAD - Universidade de Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal.
| | - J F M Gonçalves
- CIIMAR/CIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade de Porto, Rua Jorge Viterbo Ferreira n.° 228, 4050-313 Porto, Portugal
| | - S Batista
- CIIMAR/CIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade de Porto, Rua Jorge Viterbo Ferreira n.° 228, 4050-313 Porto, Portugal
| | - B Costas
- CIIMAR/CIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - M A Pires
- CECAV-UTAD - Universidade de Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - P Rema
- CECAV-UTAD - Universidade de Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - R O A Ozório
- CIIMAR/CIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade de Porto, Rua Jorge Viterbo Ferreira n.° 228, 4050-313 Porto, Portugal.
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9
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Saraiva AL, Payan-Carreira R, Gärtner F, Santana I, Rêma A, Lourenço LM, Pires MA. Immunohistochemical Expression of Cyclooxygenase-2 (COX-2) in Feline Endometrial Adenocarcinoma and in Normal and Hyperplastic Endometria. Reprod Domest Anim 2015; 50:333-340. [DOI: 10.1111/rda.12497] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 01/13/2015] [Indexed: 11/30/2022]
Affiliation(s)
- AL Saraiva
- CECAV; Centro de Ciência Animal e Veterinária; Universidade de Trás-os-Montes e Alto Douro; Quinta de Prados; Vila Real Portugal
- Escola Universitária Vasco da Gama (EUVG); Coimbra Portugal
| | - R Payan-Carreira
- CECAV; Centro de Ciência Animal e Veterinária; Universidade de Trás-os-Montes e Alto Douro; Quinta de Prados; Vila Real Portugal
| | - F Gärtner
- Abel Salazar Institute of Biomedical Sciences (ICBAS); University of Porto; Porto Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Porto Portugal
| | - I Santana
- CECAV; Centro de Ciência Animal e Veterinária; Universidade de Trás-os-Montes e Alto Douro; Quinta de Prados; Vila Real Portugal
| | - A Rêma
- Abel Salazar Institute of Biomedical Sciences (ICBAS); University of Porto; Porto Portugal
| | - LM Lourenço
- CECAV; Centro de Ciência Animal e Veterinária; Universidade de Trás-os-Montes e Alto Douro; Quinta de Prados; Vila Real Portugal
| | - MA Pires
- CECAV; Centro de Ciência Animal e Veterinária; Universidade de Trás-os-Montes e Alto Douro; Quinta de Prados; Vila Real Portugal
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Payan-Carreira R, Santos C, Miranda S, Pereira RMLN, Santos D, Pires MA. Temporal changes in neutral endopeptidase/CD10 immunoexpression in the cyclic and early pregnant canine endometrium. Theriogenology 2014; 82:815-26. [PMID: 25082021 DOI: 10.1016/j.theriogenology.2014.06.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 02/07/2014] [Revised: 06/16/2014] [Accepted: 06/18/2014] [Indexed: 12/12/2022]
Abstract
CD10 is a multifunctional transmembrane neutral endopeptidase (NEP) that is considered to be a reliable marker of ectopic human endometrial stroma. Available information on NEP/CD10 protein expression in animal endometria is scarce. This study focused on the immunolocalization of NEP/CD10 in the canine uterus and on its temporal changes during the estrous cycle and early pregnancy (Days 11 to 23 post-LH surge) in healthy females. NEP/CD10 expression was found in the canine endometrial stroma in all stages of the estrous cycle, showing cyclic differences both in intensity and in distribution pattern. A small population of negative stromal cells in subsurface position was also observed. This population shared some morphological characteristics with the human predecidual cells, which became positive in progesterone-associated stages of the cycle. In addition, positive immunolabeling was also observed in canine myometrial stroma. In early pregnancy, the basal glandular epithelia and the syncytium cords remained negative to this marker contrasting with the trophoblast and the lacunar epithelium. A weak to moderate intensity of immunolabeling was observed in the decidual cells, whereas stromal immunolabeling was more intense at the delimitation of the syncytium cords. In conclusion, CD10 is consistently expressed in the canine endometrial stroma and myometrium but not in the endometrial epithelia. The characteristic pattern seen in early pregnancy also suggests a role for this molecule in the process of embryo invasion at implantation.
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Affiliation(s)
- R Payan-Carreira
- Animal and Veterinary Research Centre (CECAV), Universidade de Trás-os-Montes e Alto Douro, UTAD, Vila Real, Portugal.
| | - C Santos
- Animal and Veterinary Research Centre (CECAV), Universidade de Trás-os-Montes e Alto Douro, UTAD, Vila Real, Portugal
| | - S Miranda
- Animal and Veterinary Research Centre (CECAV), Universidade de Trás-os-Montes e Alto Douro, UTAD, Vila Real, Portugal; Department of Veterinary Medicine, University School Vasco da Gama, Coimbra, Portugal
| | - R M L N Pereira
- Department of Veterinary Medicine, University School Vasco da Gama, Coimbra, Portugal; Strategic Unit for Biotechnology and Genetic Resources, National Institute of Agrarian and Veterinary Research (INIAV)-Pole at Quinta da Fonte Boa, Vale de Santarém, Portugal
| | - D Santos
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Universidade de Trás-os-Montes e Alto Douro, UTAD, Vila Real, Portugal
| | - M A Pires
- Animal and Veterinary Research Centre (CECAV), Universidade de Trás-os-Montes e Alto Douro, UTAD, Vila Real, Portugal
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Payan-Carreira R, Saraiva AL, Santos T, Vilhena H, Sousa A, Santos C, Pires MA. Feline Endometrial Adenocarcinoma in Females <1 Year Old: A Description of Four Cases. Reprod Domest Anim 2013; 48:e70-7. [DOI: 10.1111/rda.12190] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 05/07/2013] [Indexed: 11/30/2022]
Affiliation(s)
- R Payan-Carreira
- CECAV; University of Trás-os-Montes and Alto Douro; Vila Real; Portugal
| | | | - T Santos
- Veterinary Teaching Hospital (HVUTAD); University of Trás-os-Montes and Alto Douro; Vila Real; Portugal
| | | | - A Sousa
- Policlínica Veterinária d Aveiro - Vetsanus; Aveiro; Portugal
| | - C Santos
- CECAV; University of Trás-os-Montes and Alto Douro; Vila Real; Portugal
| | - MA Pires
- CECAV; University of Trás-os-Montes and Alto Douro; Vila Real; Portugal
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Payan-Carreira R, Colaço B, Rocha C, Albuquerque C, Luis M, Abreu H, Pires MA. Priapism associated with lumbar stenosis in a dog. Reprod Domest Anim 2013; 48:e58-64. [PMID: 23551292 DOI: 10.1111/rda.12167] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 02/19/2013] [Indexed: 11/28/2022]
Abstract
Priapism, a persistent long-lasting involuntary erection of the penis, is uncommon in dogs. In this report, the case of a 13-year-old male Pointer, referred to our services due to persistent exposition of the penis, is described. This condition was consecutive to an intermittent priapism situation lasting for several days, which has been initially attributed to the inflammation and haematoma associated with a perianal bite. The owners became unable to retract the penis into the prepuce. At presentation, the dog was anorectic for 48 h, intolerant to manipulation, and showed poor body condition and unsteady locomotion. During physical evaluation, a marked engorgement of the local vessels in the prepuce and penis was found. An abdominal X-ray was asked under the suspicion of a neurogenic origin for the clinical situation, which showed evidences of spondylosis. After discussion of the clinical condition, the owners asked for euthanasia. The necropsy confirmed the engorgement of the regional vessels deriving from the pudendal arteries and blood accumulation within all the cavernous spaces, accompanied by congestion and thrombosis within the erectile structures of the penis. No significant changes were observed in the pelvic organs that could be at the origin of priapism. The lumbar-sacral spinal regions were carefully inspected and evidenced signs of L7-S1 stenosis due to spondylosis. The case presented herein is a rare situation of priapism of neurogenic origin in a dog. Necropsy findings suggest that it was consecutive to cauda equina compression due to lumbar spinal stenosis.
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Affiliation(s)
- R Payan-Carreira
- CECAV, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
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13
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Payan-Carreira R, Santana I, Pires MA, Holst BS, Rodriguez-Martinez H. Localization of tumor necrosis factor in the canine testis, epididymis and spermatozoa. Theriogenology 2012; 77:1540-8. [PMID: 22240190 DOI: 10.1016/j.theriogenology.2011.11.021] [Citation(s) in RCA: 5] [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] [Received: 04/14/2011] [Revised: 11/21/2011] [Accepted: 11/24/2011] [Indexed: 12/31/2022]
Abstract
Tumor necrosis factor (TNF), formerly known as Tumor necrosis factor alpha is now regarded as a natural component of the mammalian seminal plasma (SP). Although not completely clarified, its functions in the SP have been associated with paradoxal roles, such as sperm survival in the female genital tract, while at high levels negatively affect sperm survival and fertility potential. Recently, it has been discovered that canine inseminated spermatozoa display a strong immunoreaction for TNF when lining the female endometrium. As a continuation of this finding, the present work aimed at documenting TNF localization in the canine testes and epididymis and in freshly ejaculated spermatozoa (SPZ) through immunohisto- or cytochemistry. Immunoreaction for TNF was found in all samples used. In the dog testis, TNF immunoexpression was limited to the seminiferous tubules, where late round spermatids (SPD) showed weak intensity of immunostaining, while elongating and elongated SPD evidenced moderate and the residual bodies a strong intensity. In the epididymis, a gradual progressive increase of TNF immunolabelling was found throughout the epididymal regions, ranging from a weak intensity at the caput epididymis to a moderate intensity at the cauda. TNF immunolabelling was found in mature SPZ during the epididymal transit and also in freshly ejaculated SPZ, which showed a strong midpiece immunolabelling. Data presented here provide important information on expression of TNF in spermatozoa, which is acquired by the SPZ during their formation at the testis. It further provides the basis for subsequent studies on the physiological importance of cytokines in sperm function.
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Affiliation(s)
- R Payan-Carreira
- CECAV, University of Trás-os-Montes and Alto, Douro, P.O. Box 1013, 5001 to 801 Vila Real, Portugal.
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Payan-Carreira R, Pires MA, Ström Holst B, Rodriguez-Martinez H. Tumour Necrosis Factor in the Canine Endometrium: An Immunohistochemical Study. Reprod Domest Anim 2010; 46:410-8. [DOI: 10.1111/j.1439-0531.2010.01681.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Coelho AC, Pinto ML, Miranda A, Coelho AM, Pires MA, Matos M. Comparative evaluation of PCR in Ziehl-Neelsen stained smears and PCR in tissues for diagnosis of Mycobacterium avium subsp. paratuberculosis. Indian J Exp Biol 2010; 48:948-950. [PMID: 21506505] [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: 05/30/2023]
Abstract
Thirty six tissues from sheep, previously diagnosed with paratuberculosis, were tested by PCR in positive Ziehl-Neelsen staining smears of tissues, and PCR in tissues targeting IS900 specific for Mycobacterium avium subsp. paratuberculosis. DNA amplification was achieved in 33.3% Ziehl-Neelsen smears, and in 61.1% tissue samples. Combination of both techniques found 66.7% samples as positive. Combination of techniques would, therefore, increase the sensitivity of diagnosis.
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Affiliation(s)
- A C Coelho
- Veterinary Microbiology Laboratory, Veterinary Medicine, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal.
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de Araujo FF, Germano FA, Gonçalves LL, Pires MA, Frankel RB. Magnetic polarity fractions in magnetotactic bacterial populations near the geomagnetic equator. Biophys J 2010; 58:549-55. [PMID: 19431763 DOI: 10.1016/s0006-3495(90)82398-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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] Open
Abstract
The relative numbers of North-seeking and South-seeking polarity types in natural populations of magnetotactic bacteria were determined at sites on the coast of Brazil. These sites were South of the geomagnetic equator and had upward geomagnetic inclinations of 1-12 degrees . For upward inclinations >6 degrees , South-seeking cells predominated over North-seeking cells by more than a factor of 10. For upward inclinations <6 degrees , the fraction of North-seeking cells in the population increased with decreasing geomagnetic inclination, approaching 0.5 at the geomagnetic equator. We present a simple statistical model of a stochastic process that qualitatively accounts for the dynamics of the two polarity types in a magnetotactic bacterial population as a function of the geomagnetic field inclination.
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Affiliation(s)
- F F de Araujo
- Departamento de Fisica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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Miranda A, Pires MA, Pinto ML, Sousa L, Sargo R, Rodrigues J, Coelho AC, Matos M, Coelho AM. Mycobacterium avium subspecies paratuberculosis in a diamant sparrow. Vet Rec 2009; 165:184. [PMID: 19666920 DOI: 10.1136/vr.165.6.184-a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Pires MA, Seixas F, Palmeira C, Payan-Carreira R. Histopathologic and Immunohistochemical Exam in One Case of Canine Endometrial Adenocarcinoma. Reprod Domest Anim 2009; 45:545-9. [DOI: 10.1111/j.1439-0531.2008.01243.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Martins-Bessa A, Santos T, Machado J, Pinelas R, Pires MA, Payan-Carreira R. Priapism secondary to perineal abscess in a dog - a case report. Reprod Domest Anim 2008; 45:558-63. [PMID: 19055555 DOI: 10.1111/j.1439-0531.2008.01257.x] [Citation(s) in RCA: 7] [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: 11/29/2022]
Abstract
A 7-year-old intact male Boxer was referred to our services at the Veterinary Teaching Hospital of the University of Trás-os-Montes and Alto Douro, suffering from a persistently erect penis (including the bulbus glandis) that had been exposed for several days. Radiographic and ultrasonographic examinations detected a 5.0 x 3.5 cm mass located dorso-laterally to the urinary bladder. The microbial culture of the mass revealed Staphylococcus spp. At that time, we suspected the involvement of an abscess in the origin of the priapism. Medical and surgical treatments were promptly instituted, which allowed for penile withdrawal into the prepuce; however, the resolution of the penile erection was not accomplished in the following days and penile amputation was required. Histological evaluation of the excised penis revealed extensive infarction of the erectile tissue of the pars longa and bulbus glandis, and also of the blood vessels of the penis. Following penile amputation and antimicrobial therapy, the animal fully recovered. Ultimately, the animal died as a consequence of gastric torsion. At necropsy, some lesions compatible with a previous perforation of the intestinal wall were recorded. The data gathered from the anamnesis, the physical and imaging examinations, along with the post-mortem findings, allowed us to conclude that in this clinical case the primary cause of priapism was a perineal abscess due to bowel perforation.
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Affiliation(s)
- A Martins-Bessa
- Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
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20
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Saraiva AL, Gärtner F, Pires MA. Expression of p63 normal canine skin and primary cutaneous glandular carcinomas. Vet J 2008; 177:136-40. [PMID: 17804265 DOI: 10.1016/j.tvjl.2007.03.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2007] [Revised: 03/24/2007] [Accepted: 03/28/2007] [Indexed: 11/29/2022]
Abstract
p63, a recently identified homologue of the p53 protein, is expressed consistently in basal cells of several human multilayered epithelia. In this study, expression of p63 was determined in 31 primary cutaneous glandular carcinomas, including sebaceous, perianal (hepatoid) gland, apocrine and ceruminous carcinomas, as well as their adjacent normal skin. Similar to humans, p63 is a reliable marker for basal and myoepithelial cells in canine epidermis, cutaneous appendages and malignant apocrine and ceruminous gland neoplasms. In sebaceous carcinomas, not only basal cells, but also some sebocytes, showed nuclear staining for p63. Most mature epithelial cells in perianal gland carcinomas exhibited strong p63 expression. Based on these findings, basal/myoepithelial cells could be involved in the oncogenesis of these tumours and p63 might be used as a diagnostic marker in these lesions.
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Affiliation(s)
- A L Saraiva
- Veterinary Sciences Department, Centre of Animal and Veterinary Sciences (CECAV), Universidade de Trás-os-Montes e Alto Douro (UTAD), 5001-801 Vila Real, Portugal
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Payan-Carreira R, Pires MA, Quaresma M, Chaves R, Adega F, Guedes Pinto H, Colaço B, Villar V. A complex intersex condition in a Holstein calf. Anim Reprod Sci 2008; 103:154-63. [PMID: 17517482 DOI: 10.1016/j.anireprosci.2007.04.013] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2006] [Revised: 03/21/2007] [Accepted: 04/10/2007] [Indexed: 10/23/2022]
Abstract
A case of disrupted embryonic development of the genital tract in a newborn Holstein calf is described. The physical examination of the calf evidenced several abnormalities, like atresia ani, rudimentary external genitalia and caudal vertebral agenesis. On necropsy, the excised genitalia consisted of bilateral streak gonads, apparently normal uterine tubes, a fluid-filled uterus, a long vagina and a very narrow clitoris-like structure covered with a discrete skin-fold. The urinary tract seemed normal and the urethra's opening was at the vestibule-vaginal junction. A cytogenetic analysis was requested. Karyotype revealed the existence of Y chromosome material in the two X chromosomes. However, the search for the sex-determining region Y (SRY) showed that this was an apparently absent gene. The histological examination of the gonads revealed the existence of ovarian dysplasia. Uterine sections evidenced the absence of the uterine epithelium, with only sporadic caruncles. Under microscopic examination, the uterine tubes and vagina structure was normal. The external genitalia sections revealed the existence of a skin-fold covering an erectile structure surrounding the urethra, a structure more similar to a penis than to a clitoris. This is an unusual situation of gonadal dysplasia combined with genital tract anomalies in cattle, probably associated to a genetic defect.
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Affiliation(s)
- R Payan-Carreira
- Centre for Studies on Agricultural and Veterinary Sciences, Universidade de Trás-os-Montes e Alto Douro, Apartado 1013, 5000-911 Vila Real, Portugal
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Affiliation(s)
- F Seixas
- Department of Veterinary Sciences, Centre for Studies on Agricultural and Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5000-911 Vila Real, Portugal
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Pires MA, Seixas F, Pires I, Queiroga F. Mammary neoplasia with lung metastasis in a rat (Rattus norvegicus). Vet Rec 2003; 153:783-4. [PMID: 14735996] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Affiliation(s)
- M A Pires
- Clinicas Veterinárias-CECAV, Universidade de Trás-os-Montes e Alto Douro, 5000-911, Vila Real, Portugal
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Seixas F, Travassos P, Pinto M, Pires I, Pires MA. Straelensiosis in a dog in Portugal. Vet Rec 2003; 153:156. [PMID: 12934804] [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: 03/04/2023]
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Montero L, Vasconcellos PC, Souza SR, Pires MA, Sanchez-Ccoyllo OR, Andrade MF, Carvalho LR. Measurements of atmospheric carboxylic acids and carbonyl compounds in São Paulo City, Brazil. Environ Sci Technol 2001; 35:3071-3081. [PMID: 11505981 DOI: 10.1021/es001875g] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Winter atmospheric measurements of gaseous lower carbonyl and carboxylic acids were carried out simultaneously (in 1999) at two distinct urban sites located in the city of São Paulo, Brazil. The greater metropolitan area of São Paulo is the largest industrialized region of Latin America and has a highly polluted atmosphere. It has an unconventional mix of vehicle types in that a variety of gasoline blends, including oxygenated ones, are used. Mixing ratios of formic and acetic acids ranged, respectively, from 0.6 to 19.4 and from 0.1 to 10.6 ppbv in one of the sites studied and from 1.4 to 18.4 and from 0.4 to 6.7 ppbv in the other site. High values of formic to acetic ratios were found, especially in the latter site (average = 4.3), suggesting that photochemical production was the predominant source of the formic and acetic acid during the afternoon. Differing from the acids, levels of carbonyls were similar at both sites. Higher average mixing ratios of acetaldehyde and formaldehyde were found in the morning (18.9 and 17.2 ppbv) and gradually decreased from midday (9.5 and 11.8 ppbv) to evening (7.2 and 10.2 ppbv). In the morning, vehicular direct emission seemed to be the main primary source of formaldehyde and acetaldehyde, whereas at midday and evening these compounds appeared to be mainly formed by photochemistry. Secondary photochemical production of organic acids and aldehydes (rather than primary emissions from vehicles) was shown to be more important in São Paulo's atmosphere from midday to evening, particularly on days with strong solar radiation.
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Affiliation(s)
- L Montero
- Instituto de Química, Universidade de São Paulo, Brazil
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Abstract
Magnetite, the main component of converter slag in the steel industry, can be used for the adsorption of Ni(II) from aqueous solutions, over a range of conditions: initial metal concentration (10-100 mg 1(-1)), stirring times (2-240 min), adsorbent dosage (1 g for 0.5 1 of metal solution) and temperatures (20, 30 and 38 degrees C). The adsorption rate increased with initial concentration but decreased with increase in temperature, due to competition of the dissolution process. The adsorption process obeyed the Freundlich isotherm model.
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Affiliation(s)
- N Ortiz
- Nuclear Energy Research Institute-IPEN, Sao Paulo, Brazil.
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Pires MA, Dias M, Oliveira C, De Oliveira HM. [Factors of recurrence of intraepithelial lesions of the uterine cervix]. ACTA MEDICA PORT 2000; 13:259-63. [PMID: 11234489] [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: 02/19/2023]
Abstract
MATERIAL AND METHODS A retrospective study (1994-1996) of 282 cases of intraepithelial lesions treated in the Gynecology Services of Coimbra University Hospitals and subsequent follow-up (9-45 months). The following parameters were evaluated as recurrence factors: the patient's age, lesion degree, associated HPV infection, treatment type, safety margin in the ablative treatments and interval free of illness. RESULTS Of the 282 cases, 72.4% (N = 204) corresponded to HSIL and 27.6% (N = 78) to LSIL. The patients' mean was 36.3 +/- 9.1 [19-67] years. The most commonly used treatment types were the LLETZ (large loop excision of the transformation zone) (76.9%) followed by CO2 LASER vaporization (16%) and finally cold-knife conization (7.1%). The safety margins were determined in 184 cases and, on average, were of 3.2 +/- 2.4 [1-10] mm. Forty-four recurrences occurred (15.6%) of which 75% corresponded to HSIL lesions (N = 33) and 25% (N = 11) to LSIL. From the total number of recurrences the association to HPV infection was found in 24 of the cases (54.5%) and 75% of these (N = 19) corresponded to HSIL. The average age in the recurrence group was 38.2 +/- 8.7 [21-53] years and 35.9 +/- 9.2 [19-67] years in the group without recurrences (p > 0.05). In the LSIL group treated with CO2 LASER (N = 32) the recurrence rate was 15.6% versus 13.3% in the group treated with LLETZ (N = 45). In the HSIL that were treated with CO2 LASER vaporization (N = 13) the recurrence rate was 23%; in those treated with LLETZ (N = 172) there were 16.2% recurrences and in the group submitted to cold-knife conization (N = 19) that rate was 10.5%. CONCLUSIONS The total rate of recurrence was 15.6% with the greatest incidence of lesions associated to HPV (p > 0.05). Regarding the particular case of the HSIL, a great number of recurrences with the destructive treatments (CO2 LASER) was observed when compared to the ablative treatments (cold-knife conization or LLETZ).
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Affiliation(s)
- M A Pires
- Serviço de Ginecologia, Hospitais da Universidade de Coimbra, Coimbra
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Pires MA, Andrade MJ, Guerra C, Silva TS, de Oliveira C, Beja M. [A lymphoepithelioma-like type of spinous-cell carcinoma of the cervix uteri]. ACTA MEDICA PORT 1999; 12:235-7. [PMID: 10481329] [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: 02/13/2023]
Abstract
Lymphoepithelioma-like carcinomas of the cervix uteri are very rare. They are poorly differentiated squamous cell carcinomas with intense stromal lymphocytic infiltration. These histologic features are similar to nasopharyngeal lymphoepithelioma and may have a better prognosis than other tumors of the cervix. A lymphoepithelioma-like lesion of the cervix uteri is described in a 33-year-old Caucasian woman who had an episode of vaginal bleeding. A review of the literature about these types of tumor is also presented.
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Affiliation(s)
- M A Pires
- Serviço de Ginecologia, Hospitais da Universidade de Coimbra
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Affiliation(s)
- M A Pires
- Clínicas Veterinárias, University of Trás-os-Montes e Alto Douro, Portugal
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Sampaio-Silva ML, Da Costa JM, Da Costa AM, Pires MA, Lopes SA, Castro AM, Monjour L. Antigenic components of excretory-secretory products of adult Fasciola hepatica recognized in human infections. Am J Trop Med Hyg 1996; 54:146-8. [PMID: 8619438 DOI: 10.4269/ajtmh.1996.54.146] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The antigenic components of excretory-secretory products (ESP) of adult worms of Fasciola hepatica were revealed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western blot analysis using sera from 20 patients infected with F. hepatica. Sera from 184 other parasitic infections and 20 healthy volunteers were also analyzed. It was found that the ESP were composed of more than 11 polypeptides; five components detected in fascioliasis sera had molecular weights of 12.4, 16.4, 19.4, 25, and 27 kilodaltons (kD). Only the 25- and 27-kD components were recognized by all 20 fascioliasis sera. Using the ESP as antigen, it was possible to perform an enzyme-linked immunosorbent assay with a sensitivity of 95% and a specificity of 97%. Sera from other parasitic infections had antibodies to antigenic components with apparent molecular weights of 37, 38.4, 52, 63, 73, 87, 109, and 116 kD that were also found in sera from fascioliasis patients. These findings suggested that the 25- and 27-kD antigenic components may be sensitive and specific for the diagnosis of human fascioliasis.
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Martins GB, Rao D, Valdivia JA, Pires MA, Barberis GE, Rettori C, Venegas PA, Oseroff S, Fisk Z. ESR of Gd3+ and Er3+ in Pr2-xCexCuO4. Phys Rev B Condens Matter 1995; 51:11909-11914. [PMID: 9977932 DOI: 10.1103/physrevb.51.11909] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Pedrazzani ES, Pires MA, Gouveia HG. [Study of the AIDS epidemic in the city of St. Carlos]. Rev Bras Enferm 1995; 48:120-6. [PMID: 8715726 DOI: 10.1590/s0034-71671995000200003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
This study emerged in the face of the need to consolidate the information from the clinical HIV+ and AIDS cases recorded at the Ambulatório Regional de Especialidades de São Carlos (Special Clinic). Its aim is to identify the population according to sex, age group, marital status, level of education, occupation and the variables related to the epidemic means of exposure, laboratory tests and disease status-as well as to provide the health service with information. The data from 204 patients, 147 males and 57 females were analysed; most people were between 20 and 30 year of age and single. For females, the predominant mean of exposure was heterosexual sex, and for males blood transmission (intravenous drug use) predominated. With this analysis it will be possible to follow the development of the epidemic in the region and to propose preventive measures, which are considered to be only option for control of the disease at present.
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Martins GB, Pires MA, Barberis GE, Rettori C, Torikachvili MS. Electron spin resonance of Nd3+ and Yb3+ in CdFe4P12. Phys Rev B Condens Matter 1994; 50:14822-14826. [PMID: 9975825 DOI: 10.1103/physrevb.50.14822] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Yacoby Y, Sanjurjo JA, Pires MA, Katiyar RS, Rettori C. Intercalant vibrations in stage-1 AlCl3 graphite. Phys Rev B Condens Matter 1992; 46:6586-6588. [PMID: 10002349 DOI: 10.1103/physrevb.46.6586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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37
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Ceotto G, Pires MA, Sanjurjo JA, Rettori C, Barberis GE. Laser-excited fluorescence and electron-spin resonance of Er3+ in polycrystalline AlCl3. Phys Rev B Condens Matter 1990; 42:909-912. [PMID: 9994614 DOI: 10.1103/physrevb.42.909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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