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Pereira MA, Nóbrega C, Mateus TL, Almeida D, Oliveira A, Coelho C, Cruz R, Oliveira P, Faustino-Rocha A, Pires MJ, Mesquita JR, Vala H. An Antibody-Based Survey of Toxoplasma gondii and Neospora caninum Infection in Client-Owned Cats from Portugal. Animals (Basel) 2023; 13:2327. [PMID: 37508104 PMCID: PMC10376655 DOI: 10.3390/ani13142327] [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: 06/08/2023] [Revised: 07/09/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Toxoplasma gondii and Neospora caninum are obligate intracellular protozoan parasites infecting a wide range of hosts worldwide. However, information on the epidemiology of toxoplasmosis and neosporosis in cats from Portugal is limited. Thus, this study aims to evaluate anti-T. gondii and anti-N. caninum seroprevalence in client-owned cats from Portugal and to identify risk factors using a panel of well-characterized sera. A total of 183 domestic cats were sampled and screened for antibodies against T. gondii and N. caninum using commercial ELISA assays, and their owners answered an online questionnaire designed to obtain background information. The overall anti-T. gondii and anti-N. caninum seroprevalences were 13.1% (CI: 8.97-18.77) and 3.8% (CI: 1.87-7.68), respectively. Univariate analysis revealed that living strictly indoors was a significant protection factor (cOR: 0.053; CI: 0.005-0.627), and the presence of a chronic disease a significant risk factor (cOR: 3.106; CI: 1.062-9.082) to T. gondii seroprevalence. When performing multivariate analysis, only chronic disease (aOR: 57.527; CI: 1.7-1976.7) and seropositivity to N. caninum (aOR: 7.929; CI:0.8-82.9) were found to be a significant risk factor to anti-T. gondii antibodies. To the best of our knowledge, this is the first report of N. caninum seropositivity in cats from Portugal.
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Affiliation(s)
- Maria Aires Pereira
- Instituto Politécnico de Viseu, Escola Superior Agrária de Viseu, Campus Politécnico, 3504-510 Viseu, Portugal
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa (UNL), R. da Junqueira 100, 1349-008 Lisboa, Portugal
- CERNAS-IPV Research Centre, Instituto Politécnico de Viseu, Campus Politécnico, Repeses, 3504-510 Viseu, Portugal
| | - Carmen Nóbrega
- Instituto Politécnico de Viseu, Escola Superior Agrária de Viseu, Campus Politécnico, 3504-510 Viseu, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
| | - Teresa L Mateus
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Àlvares, 4900-347 Viana do Castelo, Portugal
- Veterinary and Animal Research Centre (CECAV), Universidade de Trás-os-Montes e Alto Douro (UTAD), Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS) Quinta de Prados, 5000-801 Vila Real, Portugal
- EpiUnit-Instituto de Saúde Pública da Universidade do Porto, Laboratory for Integrative and Translational Research in Population Health (ITR), Rua das Taipas, n° 135, 4050-091 Porto, Portugal
| | - Daniela Almeida
- ICBAS-Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Andreia Oliveira
- Escola Superior Agrária de Ponte de Lima, Instituto Politécnico de Viana do Castelo, Rua D. Mendo Afonso, 147 Refóios do Lima, 4990-706 Ponte de Lima, Portugal
- Hospital Veterinário de Gaia, Rua Voltinha 82, 4415-369 Pedroso, Portugal
| | - Catarina Coelho
- Instituto Politécnico de Viseu, Escola Superior Agrária de Viseu, Campus Politécnico, 3504-510 Viseu, Portugal
- CERNAS-IPV Research Centre, Instituto Politécnico de Viseu, Campus Politécnico, Repeses, 3504-510 Viseu, Portugal
- Veterinary and Animal Research Centre (CECAV), Universidade de Trás-os-Montes e Alto Douro (UTAD), Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS) Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Rita Cruz
- Instituto Politécnico de Viseu, Escola Superior Agrária de Viseu, Campus Politécnico, 3504-510 Viseu, Portugal
- EpiUnit-Instituto de Saúde Pública da Universidade do Porto, Laboratory for Integrative and Translational Research in Population Health (ITR), Rua das Taipas, n° 135, 4050-091 Porto, Portugal
| | - Paula Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - Ana Faustino-Rocha
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
- Comprehensive Health Research Center, Department of Zootechnics, School of Sciences and Technology, University of Évora, 7004-516 Évora, Portugal
| | - Maria J Pires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - João R Mesquita
- EpiUnit-Instituto de Saúde Pública da Universidade do Porto, Laboratory for Integrative and Translational Research in Population Health (ITR), Rua das Taipas, n° 135, 4050-091 Porto, Portugal
- ICBAS-Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Helena Vala
- Instituto Politécnico de Viseu, Escola Superior Agrária de Viseu, Campus Politécnico, 3504-510 Viseu, Portugal
- CERNAS-IPV Research Centre, Instituto Politécnico de Viseu, Campus Politécnico, Repeses, 3504-510 Viseu, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
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Yu M, Gouvinhas I, Pires MJ, Neuparth MJ, Costa RMGD, Medeiros R, Bastos MMSM, Vala H, Félix L, Venâncio C, Barros AIRNA, Oliveira PA. Study on the antineoplastic and toxicological effects of pomegranate (Punica granatum L.) leaf infusion using the K14-HPV16 transgenic mouse model. Food Chem Toxicol 2023; 174:113689. [PMID: 36858299 DOI: 10.1016/j.fct.2023.113689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 02/12/2023] [Accepted: 02/20/2023] [Indexed: 03/02/2023]
Abstract
Punica granatum L. (pomegranate) has been used in functional foods due to its various health benefits. However, the in vivo biological potential of its leaf remains little known. This study has aimed to characterize the antineoplastic and toxicological properties of using pomegranate leaf infusion (PLI) on transgenic mice carrying human papillomavirus (HPV) type 16 oncogenes. Thirty-eight mice were divided into 3 wild-type (WT) and 3 transgenic (HPV) groups, with exposure to 0.5% PLI, 1.0% PLI, and water. The animals' body weight, drink and food consumption were recorded. Internal organs, skin samples and intracardiac blood were collected to evaluate toxicological parameters, neoplastic lesions and oxidative stress. The results indicated that PLI was safe as no mortality, no behavioural disorders and no significant differences in the levels of microhematocrit, serum biochemical markers, internal organ histology, and oxidative stress was found among the WT groups. Histological analysis revealed that HPV animals that consumed PLI exhibited reduced hepatic, renal and cutaneous lesions compared with the HPV control group. Low-dose PLI consumption significantly diminished renal hydronephrosis lesions and relieved dysplasia and carcinoma lesions in the chest skin. Oxidative stress analysis showed that low-dose PLI consumption may have more benefits than high-dose PLI. These results suggest that oral administration of PLI has the potential to alleviate non-neoplastic and neoplastic lesions against HPV16-induced organ and skin injuries, though this requires further scientific research studies.
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Affiliation(s)
- Manyou Yu
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Irene Gouvinhas
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Maria J Pires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), TOXRUN- Toxicology Research Unit University Institute of Health Sciences, CESPU, CRL, Gandra, Portugal
| | - Maria J Neuparth
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports of the University of Porto (FADEUP), Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), TOXRUN- Toxicology Research Unit University Institute of Health Sciences, CESPU, CRL, Gandra, Portugal
| | - Rui M Gil da Costa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Postgraduate Programme in Adult Health (PPGSAD), Morphology Department and University Hospital (HUUFMA), Federal University of Maranhão (UFMA), São Luís, Brazil; Molecular Oncology and Viral Pathology Group, IPO Porto Research Center (CI-IPOP)/RISEI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/ Porto Comprehensive Cancer Center (PortoCCC), Porto, Portugal; LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, IPO Porto Research Center (CI-IPOP)/RISEI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/ Porto Comprehensive Cancer Center (PortoCCC), Porto, Portugal
| | - Margarida M S M Bastos
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Helena Vala
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Agrarian School of Viseu, Polytechnic Institute of Viseu, Viseu, Portugal
| | - Luis Félix
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; i3S-Instituto de Investigação e Inovação em Saúde, Laboratory Animal Science, IBMC-Instituto de Biologia Molecular Celular, Universidade do Porto, 4200-135, Porto, Portugal
| | - Carlos Venâncio
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), TOXRUN- Toxicology Research Unit University Institute of Health Sciences, CESPU, CRL, Gandra, Portugal
| | - Ana I R N A Barros
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Paula A Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences / Institute for Innovation, Capacity Building, and Sustainability of Agri-Food Production (CITAB / Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Veterinary Sciences, School of Agricultural and Veterinary Sciences, UTAD, Vila Real, Portugal
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Martins T, Matos AF, Soares J, Leite R, Pires MJ, Ferreira T, Medeiros-Fonseca B, Rosa E, Oliveira PA, Antunes LM. Comparison of Gelatin Flavors for Oral Dosing of C57BL/6J and FVB/N Mice. J Am Assoc Lab Anim Sci 2022; 61:89-95. [PMID: 34847984 PMCID: PMC8786383 DOI: 10.30802/aalas-jaalas-21-000045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/26/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Precise oral dosing in rodents is usually achieved by intragastric gavage. If performed incorrectly due to technical difficulties, inexperience, or animal resistance, oral gavage may have animal welfare implications such as esophageal and gastric rupture and aspiration. The stress that is induced by this procedure can also lead to confounding results. In several animal models, drug vehicles must be sugar-free, deliver drugs in a specific formulation, and sometimes supply water. Gelatin has all of these properties. The current study aimed to evaluate the use of gelatin vehicles with different sensory features as an alternative to oral gavage. We investigated the time taken by 2 different inbred mouse strains, FVB/N and C57BL/6J, to ingest sugar-free gelatin pellets of varying flavors. Results showed that FVB/N mice took more time to eat the unflavored, strawberry and diet-flavored gelatin pellets than did C57BL/6J mice. Both strains showed low preference for lemon flavor, with the same ingestion times after the second day. This study showed that the C57BL/6J mice are more likely to eat gelatin than are FVB/N mice, and that the 2 strains of mice show a lower preference for lemon flavoring as compared with other flavors. This method of voluntarily oral administration offers an alternative to gavage for studies that use oral dosing studies.
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Affiliation(s)
- Tânia Martins
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trásos-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, Vila Real, Portugal
| | - Ana F Matos
- Department of Biology and Environment, School of Life and Environmental Sciences, University of Trás-os Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Joana Soares
- Department of Biology and Environment, School of Life and Environmental Sciences, University of Trás-os Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Rúben Leite
- Department of Biology and Environment, School of Life and Environmental Sciences, University of Trás-os Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Maria J Pires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trásos-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, Vila Real, Portugal
| | - Tiago Ferreira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trásos-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Beatriz Medeiros-Fonseca
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trásos-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Eduardo Rosa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trásos-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Paula A Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trásos-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, Vila Real, Portugal
| | - Luís M Antunes
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trásos-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, Vila Real, Portugal
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4
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Almeida J, Ferreira T, Santos S, Pires MJ, da Costa RMG, Medeiros R, Bastos MM, Neuparth MJ, Faustino-Rocha AI, Abreu H, Pereira R, Pacheco M, Gaivão I, Rosa E, Oliveira PA. The Red Seaweed Grateloupia turuturu Prevents Epidermal Dysplasia in HPV16-Transgenic Mice. Nutrients 2021; 13:nu13124529. [PMID: 34960081 PMCID: PMC8707361 DOI: 10.3390/nu13124529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/12/2021] [Accepted: 12/14/2021] [Indexed: 11/16/2022] Open
Abstract
The role of dietary profiles in promoting or reducing the risk of multiple types of cancer is increasingly clear, driving the search for balanced foods and nutraceuticals. The red seaweed Grateloupia turuturu has been used as human food showing a balanced nutritional profile. This study aims to test in vivo chemopreventive effects of G. turuturu against cutaneous pre-malignant lesions in transgenic mice for the human papillomavirus type 16 (HPV16). Forty-four female HPV+/− or HPV−/− mice received a standard diet or were supplemented with 10% G. turuturu for 22 consecutive days. Cutaneous lesions (ear and chest skin) were identified histologically. Complementarily, the weights and histology of internal organs as well as blood biochemical and DNA integrity parameters were also assessed. G. turuturu consistently reduced the incidence of epidermal dysplasia induced by HPV16 on both cutaneous sites. Moreover, biochemical, DNA integrity and histological analyses confirmed G. turuturu edibility as no signs of toxicity were found. Dietary supplementation with G. turuturu is an effective and safe chemopreventive strategy in this model.
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Affiliation(s)
- José Almeida
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.A.); (T.F.); (S.S.); (M.J.P.); (A.I.F.-R.)
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5001-801 Vila Real, Portugal; (R.M.G.d.C.); (E.R.)
| | - Tiago Ferreira
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.A.); (T.F.); (S.S.); (M.J.P.); (A.I.F.-R.)
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5001-801 Vila Real, Portugal; (R.M.G.d.C.); (E.R.)
| | - Susana Santos
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.A.); (T.F.); (S.S.); (M.J.P.); (A.I.F.-R.)
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5001-801 Vila Real, Portugal; (R.M.G.d.C.); (E.R.)
| | - Maria J. Pires
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.A.); (T.F.); (S.S.); (M.J.P.); (A.I.F.-R.)
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5001-801 Vila Real, Portugal; (R.M.G.d.C.); (E.R.)
| | - Rui M. Gil da Costa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5001-801 Vila Real, Portugal; (R.M.G.d.C.); (E.R.)
- Maranhão Tumour and DNA Biobank (BTMA), Post-graduate Programme in Adult Health (PPGSAD), Federal University of Maranhão (UFMA), São Luís 65080-805, Brazil
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto. CCC), 4200-072 Porto, Portugal;
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto. CCC), 4200-072 Porto, Portugal;
- Faculty of Medicine, University of Porto (FMUP), 4200-450 Porto, Portugal
- CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, 4200-150 Porto, Portugal
- LPCC Research Department, Portuguese League against Cancer (NRNorte), 4200-172 Porto, Portugal
| | - Margarida M.S.M. Bastos
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;
| | - Maria J. Neuparth
- Research Center in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal;
- Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Advanced Polytechnic and University Cooperative (CESPU), 4585 Gandra, Portugal
| | - Ana I. Faustino-Rocha
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.A.); (T.F.); (S.S.); (M.J.P.); (A.I.F.-R.)
- Department of Zootechnics, School of Sciences and Technology, 7000-671 Évora, Portugal
| | - Helena Abreu
- ALGAplus, Lda., PCI-Creative Science Park, 3830-352 Ílhavo, Portugal; (H.A.); (R.P.)
| | - Rui Pereira
- ALGAplus, Lda., PCI-Creative Science Park, 3830-352 Ílhavo, Portugal; (H.A.); (R.P.)
- A4F Algae for Future, Estrada do Paço do Lumiar, Campus do Lumiar, Edif. E, R/C, 1649-038 Lisboa, Portugal
| | - Mário Pacheco
- Portugal CESAM—Centre for Environmental and Marine Studies and Department of Biology, Santiago University Campus, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Isabel Gaivão
- Department of Genetic and Biotechnology, CECAV, UTAD, 5001-801 Vila Real, Portugal;
| | - Eduardo Rosa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5001-801 Vila Real, Portugal; (R.M.G.d.C.); (E.R.)
- Department of Agronomy, UTAD, 5001-801 Vila Real, Portugal
| | - Paula A. Oliveira
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (J.A.); (T.F.); (S.S.); (M.J.P.); (A.I.F.-R.)
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5001-801 Vila Real, Portugal; (R.M.G.d.C.); (E.R.)
- Correspondence: ; Tel.: +351-259350000; Fax: +351-259325058
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5
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Faustino-Rocha AI, Seixas F, Ferreira R, Silva J, Pires MJ, Fardilha M, Ginja MÁ, Oliveira PA. Ultrasonographic Follow-up of the Multistep Protocol for Prostate Cancer Induction in Wistar Rats. In Vivo 2021; 34:1797-1803. [PMID: 32606149 DOI: 10.21873/invivo.11974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/15/2020] [Accepted: 04/17/2020] [Indexed: 11/10/2022]
Abstract
AIM This work intended to improve the knowledge of the rat model of prostate cancer (PCa) by ultrasonographic monitoring. MATERIALS AND METHODS Male Wistar rats were divided into control (n=8) and PCa (n=14) groups. PCa development was induced in the PCa group through the sequential administration of the anti-androgenic drug flutamide, testosterone propionate and the carcinogenic N-methyl-N-nitrosourea. The prostate was evaluated by ultrasonography at five timepoints along 49 weeks of the experimental protocol. Ventral prostate lobes were observed in all ultrasonographic examinations. RESULTS The ventral prostate area of the control group increased gradually between the first and the last ultrasonographic examination. The ventral prostate area of PCa groups decreased due to flutamide administration and increased after androgen and carcinogen administration. The area of the dorsal prostate lobe increased between the fourth and the fifth ultrasonographic examination. In the last ultrasonographic examination, hypoechoic and anechoic lesions were observed in the PCa group. CONCLUSION To our knowledge, this is the first study presenting a follow-up of rat prostatic dimensions by ultrasonography. Ultrasonography is a feasible approach for prostate cancer monitoring in experimental models.
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Affiliation(s)
- Ana I Faustino-Rocha
- Faculty of Veterinary Medicine, Lusophone University of Humanities and Technologies, Lisbon, Portugal .,Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal
| | - Fernanda Seixas
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.,Animal and Veterinary Research Center (CECAV), Vila Real, Portugal
| | - Rita Ferreira
- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology (LAQV-REQUIMTE), Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Jessica Silva
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Maria J Pires
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | | | - MÁrio Ginja
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Paula A Oliveira
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
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6
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Ferreira T, Nascimento-Gonçalves E, Macedo S, Borges I, Gama A, M Gil da Costa R, Neuparth MJ, Lanzarin G, Venâncio C, Félix L, Gaivão I, Alvarado A, Pires MJ, Bastos MMSM, Medeiros R, Nogueira A, Barros L, Ferreira ICFR, Rosa E, Oliveira PA. Toxicological and anti-tumor effects of a linden extract ( Tilia platyphyllos Scop.) in a HPV16-transgenic mouse model. Food Funct 2021; 12:4005-4014. [PMID: 33978005 DOI: 10.1039/d1fo00225b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Tilia platyphyllos Scop. is a popular broad-leaved tree, native to Central and Southern Europe. Hydroethanolic extracts rich in phenolic compounds obtained from T. platyphyllos Scop. have shown in vitro antioxidant, anti-inflammatory and antitumor properties. The aim of this work was to evaluate the therapeutic properties of a hydroethanolic extract obtained from T. platyphyllos in HPV16-transgenic mice. The animals were divided into eight groups according to their sex and phenotype. Four groups of female: HPV+ exposed to linden (HPV linden; n = 6), HPV+ (HPV water; n = 4), HPV- exposed to linden (WT linden; n = 5) and HPV- (WT water; n = 4) and four groups of male: HPV+ exposed to linden (HPV linden; n = 5), HPV+ (HPV water; n = 5), HPV- exposed to linden (WT linden; n = 5) and HPV- (WT water; n = 7). The linden (Tilia platyphyllos Scop.) extract was orally administered at a dose of 4.5 mg/10 mL per animal (dissolved in water) and changed daily for 33 days. The hydroethanolic extract of T. platyphyllos consisted of protocatechuic acid and (-)-epicatechin as the most abundant phenolic acid and flavonoid, respectively, and was found to be stable during the studied period. In two male groups a significant positive weight gain was observed but without association with the linden extract. Histological, biochemical, and oxidative stress analyses for the evaluation of kidney and liver damage support the hypothesis that the linden extract is safe and well-tolerated under the present experimental conditions. Skin histopathology does not demonstrate the chemopreventive effect of the linden extract against HPV16-induced lesions. The linden extract has revealed a favourable toxicological profile; however, additional studies are required to determine the chemopreventive potential of the linden extract.
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Affiliation(s)
- Tiago Ferreira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Elisabete Nascimento-Gonçalves
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Sara Macedo
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Inês Borges
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Adelina Gama
- Animal and Veterinary Research Centre (CECAV), UTAD, Vila Real, Portugal
| | - Rui M Gil da Costa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. and Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), Porto, Portugal and LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal and Postgraduate Programme in Adult Health (PPGSAD), Tumour and DNA Biobank, Federal University of Maranhão (UFMA), São Luís, Brazil
| | - Maria J Neuparth
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies, Gandra, Portugal
| | - Germano Lanzarin
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Carlos Venâncio
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Luís Félix
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. and i3s, LAS, IBMC, UP, Porto, Portugal
| | - Isabel Gaivão
- Department of Genetic and Biotechnology and CECAV, UTAD, Vila Real, Portugal
| | - Antonieta Alvarado
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. and Faculty of Veterinary Medicine, Lusophone University of Humanities and Technologies, Lisbon, Portugal
| | - Maria J Pires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Margarida M S M Bastos
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), Porto, Portugal and Faculty of Medicine, University of Porto (FMUP), Porto, Portugal and Virology Service, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal and CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal and Research Department of the Portuguese League Against Cancer-Regional Nucleus of the North (Liga Portuguesa Contra o Cancro-Núcleo Regional do Norte), Porto, Portugal
| | - António Nogueira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Eduardo Rosa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Paula A Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
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7
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Santos S, Ferreira T, Almeida J, Pires MJ, Colaço A, Lemos S, Gil da Costa RM, Medeiros R, Bastos MMSM, Neuparth MJ, Abreu H, Pereira R, Pacheco M, Gaivão I, Rosa E, Oliveira PA. Dietary Supplementation with the Red Seaweed Porphyra umbilicalis Protects against DNA Damage and Pre-Malignant Dysplastic Skin Lesions in HPV-Transgenic Mice. Mar Drugs 2019; 17:md17110615. [PMID: 31671845 PMCID: PMC6891340 DOI: 10.3390/md17110615] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 12/22/2022] Open
Abstract
Some diet profiles are associated with the risk of developing cancer; however, some nutrients show protective effects. Porphyra umbilicalis is widely consumed, having a balanced nutritional profile; however, its potential for cancer chemoprevention still needs comprehensive studies. In this study, we incorporated P. umbilicalis into the diet of mice transgenic for the human papillomavirus type 16 (HPV16), which spontaneously develop pre-malignant and malignant lesions, and determined whether this seaweed was able to block lesion development. Forty-four 20-week-old HPV+/− and HPV−/− mice were fed either a base diet or a diet supplemented with 10% seaweed. At the end of the study, skin samples were examined to classify HPV16-induced lesions. The liver was also screened for potential toxic effects of the seaweed. Blood was used to study toxicological parameters and to perform comet and micronucleus genotoxicity tests. P. umbilicalis significantly reduced the incidence of pre-malignant dysplastic lesions, completely abrogating them in the chest skin. These results suggest that P. umbilicalis dietary supplementation has the potential to block the development of pre-malignant skin lesions and indicate its antigenotoxic activity against HPV-induced DNA damage. Further studies are needed to establish the seaweed as a functional food and clarify the mechanisms whereby this seaweed blocks multistep carcinogenesis induced by HPV.
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Affiliation(s)
- Susana Santos
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
| | - Tiago Ferreira
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
| | - José Almeida
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
| | - Maria J Pires
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
| | - Aura Colaço
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Animal and Veterinary Research Center (CECAV), 5001-801 Vila Real, Portugal.
| | - Sílvia Lemos
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
| | - Rui M Gil da Costa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), 4200-072 Porto, Portugal.
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), 4200-072 Porto, Portugal.
- Faculty of Medicine, University of Porto (FMUP), 4200-450 Porto, Portugal.
- CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, 4200-150 Porto, Portugal.
- LPCC Research Department, Portuguese League against Cancer (NRNorte), 4200-172 Porto, Portugal.
| | - Margarida M S M Bastos
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Maria J Neuparth
- Research Center in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal.
| | - Helena Abreu
- ALGAplus, Lda., PCI-Creative Science Park, 3830-352 Ílhavo, Portugal.
| | - Rui Pereira
- ALGAplus, Lda., PCI-Creative Science Park, 3830-352 Ílhavo, Portugal.
| | - Mário Pacheco
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Isabel Gaivão
- Department of Genetic and Biotechnology, CECAV, UTAD, 5001-801 Vila Real, Portugal.
| | - Eduardo Rosa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
- Department of Agronomy, UTAD, 5001-801 Vila Real, Portugal.
| | - Paula A Oliveira
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
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8
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Ginja M, Pires MJ, Gonzalo-Orden JM, Seixas F, Correia-Cardoso M, Ferreira R, Fardilha M, Oliveira PA, Faustino-Rocha AI. Anatomy and Imaging of Rat Prostate: Practical Monitoring in Experimental Cancer-Induced Protocols. Diagnostics (Basel) 2019; 9:E68. [PMID: 31262045 PMCID: PMC6787576 DOI: 10.3390/diagnostics9030068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 05/04/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 12/16/2022] Open
Abstract
The rat has been frequently used as a model to study several human diseases, including cancer. In many research protocols using cancer models, researchers find it difficult to perform several of the most commonly used techniques and to compare their results. Although the protocols for the study of carcinogenesis are based on the macroscopic and microscopic anatomy of organs, few studies focus on the use of imaging. The use of imaging modalities to monitor the development of cancer avoids the need for intermediate sacrifice to assess the status of induced lesions, thus reducing the number of animals used in experiments. Our work intends to provide a complete and systematic overview of rat prostate anatomy and imaging, facilitating the monitoring of prostate cancer development through different imaging modalities, such as ultrasonography, computed tomography (CT) and magnetic resonance imaging (MRI).
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Affiliation(s)
- Mário Ginja
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal
| | - Maria J Pires
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal
| | - José M Gonzalo-Orden
- Department of Medicine, Surgery and Veterinary Anatomy, University of León, 24071 León, Spain
| | - Fernanda Seixas
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), 5001-801 Vila Real, Portugal
| | - Miguel Correia-Cardoso
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
| | - Rita Ferreira
- Organic Chemistry, Natural Products and Food Stuffs (QOPNA), 3810-193 Aveiro, Portugal
| | - Margarida Fardilha
- Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paula A Oliveira
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal.
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal.
| | - Ana I Faustino-Rocha
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001-801 Vila Real, Portugal
- Faculty of Veterinary Medicine, Lusophone University of Humanities and Technologies (ULHT), 1749-024 Lisbon, Portugal
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9
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Medeiros-Fonseca B, Mestre VF, Colaço B, Pires MJ, Martins T, Gil da Costa RM, Neuparth MJ, Medeiros R, Moutinho MSS, Dias MI, Barros L, Bastos MMSM, Félix L, Venâncio C, Ferreira ICFR, Antunes LM, Oliveira PA. Laurus nobilis (laurel) aqueous leaf extract's toxicological and anti-tumor activities in HPV16-transgenic mice. Food Funct 2018; 9:4419-4428. [PMID: 30066000 DOI: 10.1039/c8fo00783g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cancers induced by human papillomavirus (HPV) infection remain a significant public health threat, fueling the study of new therapies. Laurel (Laurus nobilis) compounds and extracts recently showed in vitro activity against HPV-transformed cell lines. This work aims to evaluate the in vivo efficacy and hepatic toxicity of a laurel extract in a transgenic mouse model of HPV16-induced cancer. The extract was administered in drinking water (20 mg per animal per day) for three consecutive weeks, using four experimental groups (n = 10) (group I: HPV16-/- without treatment, group II: treated HPV16-/-, group III: HPV16+/- without treatment and group IV: treated HPV16+/-). Following the treatment period, animals were sacrificed and skin samples were used to classify skin lesions histologically. Toxicological parameters included hematological and biochemical blood markers, splenic and hepatic histology and hepatic oxidative stress. The extract did not prevent the progression of HPV16-induced cutaneous lesions in this model. The treated wild-type animals showed mild hepatitis, while transgenic animals suffered weight loss. However, there were no changes concerning hematological, biochemical and hepatic oxidative stress markers.
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Affiliation(s)
- B Medeiros-Fonseca
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
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10
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Martins T, Colaço B, Venâncio C, Pires MJ, Oliveira PA, Rosa E, Antunes LM. Potential effects of sulforaphane to fight obesity. J Sci Food Agric 2018; 98:2837-2844. [PMID: 29363750 DOI: 10.1002/jsfa.8898] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 10/23/2017] [Revised: 01/09/2018] [Accepted: 01/16/2018] [Indexed: 06/07/2023]
Abstract
Obesity is linked to the onset of many diseases such as diabetes mellitus, cardiovascular diseases and cancer, among others. The prevalence of obesity nearly doubled worldwide between 1980 and 2014. Simultaneously, in the last decade, the effects of sulforaphane as a potential treatment for obesity have been investigated, with promising results. Fruits and vegetables and their processed agri-food co-products are good sources of natural health-promoting compounds. Brassica crops are among the most produced crops in the world and are a good source of glucoraphanin, which, following hydrolysis, releases sulforaphane. The Brassicaceae family generates large amounts of co-products with no intended use, causing negative economic and environmental impact. Valorization of these co-products could be achieved through their exploitation for the extraction of bioactive compounds such as sulforaphane. However, the extraction process still needs further improvement for its economic feasibility. This article reviews the potential effects of sulforaphane in the treatment of obesity, linked to the relevance of giving Brassica co-products added value, which is of key importance for the competitiveness of farmers and the agri-food industry. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Tânia Martins
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Bruno Colaço
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Animal Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Carlos Venâncio
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Animal Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Maria J Pires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Paula A Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Eduardo Rosa
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Luís M Antunes
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Laboratory Animal Science Group, Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
- Institute for Investigation and Innovation in Health (i3S), University of Porto, Porto, Portugal
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11
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Peirone C, Mestre VF, Medeiros-Fonseca B, Colaço B, Pires MJ, Martins T, Gil da Costa RM, Neuparth MJ, Medeiros R, Bastos MMSM, Marques-Magallanes JA, Oliveira PA. Ozone therapy prevents the onset of dysplasia in HPV16-transgenic mice-A pre-clinical efficacy and safety analysis. Biomed Pharmacother 2018; 104:275-279. [PMID: 29775895 DOI: 10.1016/j.biopha.2018.05.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 05/07/2018] [Indexed: 12/21/2022] Open
Abstract
Infection with high-risk human papillomavirus (HPV), most often HPV16, is associated with the development of anogenital and oropharyngeal cancers. Recently, ozone therapy was reported to have considerable efficacy against rabbit VX2 tumors, induced by the cottontail rabbit papillomavirus. The present study aims to determine whether similar results can be obtained in HPV16-transgenic mice, possibly paving the way for new therapeutic options against HPV-induced cancers. HPV16-transgenic and wild-type, female, 20 weeks-old mice were injected intraperitoneally with medical O3/O2 (80░mL/kg, at O3 50░μg/mL), once a day, for 5 consecutive days. The animals were sacrificed at 25 weeks-old, and skin samples were analyzed histologically to study tumour progression. Blood and internal organ samples were used to study toxicological parameters. 85.7% of untreated transgenic mice showed dysplastic skin lesions, compared with 28.6% of O3-treated mice. This was associated with a marked reduction of dermal inflammation associated with those lesions. No significant changes were observed in any toxicological parameters. These preliminary results support the hypothesis that O3 therapy is effective against papillomavirus-induced lesions, particularly against those induced by the most common high-risk virus, HPV16. Further studies are needed to confirm the mechanisms underlying these effects.
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Affiliation(s)
- C Peirone
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal.
| | - V F Mestre
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - B Medeiros-Fonseca
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - B Colaço
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Zootechnics Department, UTAD, Vila Real, Portugal
| | - M J Pires
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - T Martins
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - R M Gil da Costa
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Laboratory for Process Engineering Environment Biotechnology and Energy (LEPABE) Chemical Engineering Department, Faculty of Engineering, University of Porto (FEUP), Porto, Portugal; Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), Porto, Portugal.
| | - M J Neuparth
- Advanced Polytechnic and University Cooperative (CESPU), Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal; Research Center in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, Porto, Portugal
| | - R Medeiros
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO-Porto), Porto, Portugal; Faculty of Medicine, University of Porto (FMUP), Porto, Portugal; CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal; LPCC Research Department, Portuguese League against Cancer (NRNorte), Porto, Portugal
| | - M M S M Bastos
- Laboratory for Process Engineering Environment Biotechnology and Energy (LEPABE) Chemical Engineering Department, Faculty of Engineering, University of Porto (FEUP), Porto, Portugal
| | | | - P A Oliveira
- Department of Veterinary Sciences, UTAD, Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
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12
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Faustino-Rocha AI, Gama A, Oliveira PA, Vanderperren K, Saunders JH, Pires MJ, Ferreira R, Ginja M. Modulation of mammary tumor vascularization by mast cells: Ultrasonographic and histopathological approaches. Life Sci 2017; 176:35-41. [PMID: 28336398 DOI: 10.1016/j.lfs.2017.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 11/02/2016] [Revised: 03/07/2017] [Accepted: 03/19/2017] [Indexed: 02/07/2023]
Abstract
AIMS The inhibition of mast cells' degranulation may be an approach to prevent the formation of new vessels during the mammary carcinogenesis. MATERIALS AND METHODS Female Sprague-Dawley rats were randomly divided into five experimental groups. Mammary tumors were induced by intraperitoneal injection of N-methyl-N-nitrosourea (MNU). Animals from group II were treated with ketotifen for 18weeks immediately after the MNU administration, while animals from group III only received the ketotifen after the development of the first mammary tumor. Mammary tumors vascularization was assessed by ultrasonography (Doppler, B Flow and contrast-enhanced ultrasound) and immunohistochemistry (vascular endothelial growth factor-A). KEY FINDINGS AND SIGNIFICANCE Similar to what occurs in women with breast cancer, the majority of MNU-induced mammary tumors exhibited a centripetal enhancement order of the contrast agent, clear margin and heterogeneous enhancement. Ultrasonographic and immunohistochemical data suggest that the inhibition of mast cells' degranulation did not change the mammary tumors vascularization.
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Affiliation(s)
- Ana I Faustino-Rocha
- Faculty of Veterinary Medicine, Lusophone University of Humanities and Technologies, Lisbon, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Adelina Gama
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, UTAD, 5001-911 Vila Real, Portugal; Animal and Veterinary Research Center (CECAV), School of Agrarian and Veterinary Sciences, UTAD, 5001-911 Vila Real, Portugal
| | - Paula A Oliveira
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, UTAD, 5001-911 Vila Real, Portugal
| | - Katrien Vanderperren
- Department of Veterinary Medical Imaging and Small Animal Orthopedics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Jimmy H Saunders
- Department of Veterinary Medical Imaging and Small Animal Orthopedics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Maria J Pires
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, UTAD, 5001-911 Vila Real, Portugal
| | - Rita Ferreira
- Organic Chemistry, Natural Products and Foodstuffs (QOPNA), Mass Spectrometry Center, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mário Ginja
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, UTAD, 5001-911 Vila Real, Portugal
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13
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Faustino-Rocha AI, Rodrigues D, da Costa RG, Diniz C, Aragão S, Talhada D, Botelho M, Colaço A, Pires MJ, Peixoto F, Oliveira PA. Trihalomethanes in liver pathology: Mitochondrial dysfunction and oxidative stress in the mouse. Environ Toxicol 2016; 31:1009-1016. [PMID: 25640707 DOI: 10.1002/tox.22110] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 03/21/2014] [Revised: 12/18/2014] [Accepted: 12/21/2014] [Indexed: 06/04/2023]
Abstract
Trihalomethanes (THMs) are disinfection byproducts found in chlorinated water, and are associated with several different kinds of cancer in human populations and experimental animal models. Metabolism of THMs proceeds through enzymes such as GSTT1 and CYP2E1 and gives rise to reactive intermediates, which form the basis for their toxic activities. The aim of this study was to assess the mitochondrial dysfunction caused by THMs at low levels, and the resulting hepatic histological and biochemical changes in the mouse. Male ICR mice were administered with two THMs: dibromochloromethane (DBCM) and bromodichloromethane (BDCM); once daily, by gavage, to a total of four administrations. Animals were sacrificed four weeks after DBCM and BDCM administrations. Blood biochemistry was performed for alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total bilirubin (TB), albumin (Alb), total protein (TP), creatinine, and urea. Animals exposed to DBCM and BDCM showed elevated ALT and TB levels (p < 0.05) as compared with controls. Histological analysis confirmed the presence of vacuolar degenerescence and a multifocal necrotizing hepatitis in 33% of animals (n = 2). Mitochondrial analysis showed that THMs reduced mitochondrial bioenergetic activity (succinate dehydrogenase (SQR), cytochrome c oxidase (COX), and ATP synthase) and increased oxidative stress (glutathione S-transferase (GST)) in hepatic tissues (p < 0.05). These results add detail to the current understanding of the mechanisms underlying THM-induced toxicity, supporting the role of mitochondrial dysfunction and oxidative stress in liver toxicity caused by DBCM and BDCM. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 1009-1016, 2016.
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Affiliation(s)
- Ana I Faustino-Rocha
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - D Rodrigues
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - R Gil da Costa
- Faculty of Engineering, Laboratory for Process, Environment and Energy Engineering (LEPAE), University of Porto, UP, 4099-002, Porto, Portugal
| | - C Diniz
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - S Aragão
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - D Talhada
- Faculty of Health Sciences, Health Sciences Research Centre, University of Beira Interior, 6201-001, Covilhã, Portugal
| | - M Botelho
- Department of Health Promotion, National Institute of Health (INSA), 4000-055, Porto, Portugal
| | - A Colaço
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - M J Pires
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - F Peixoto
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
- Department of Chemistry, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - P A Oliveira
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
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Faustino-Rocha AI, Rodrigues D, Ferreira R, Colaço B, Gomes PS, Pires MJ, Gama A, Oliveira PA. The effects of intense pulsed light in a mouse model of skin carcinogenesis. Br J Dermatol 2015; 174:216-8. [PMID: 26147791 DOI: 10.1111/bjd.14010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A I Faustino-Rocha
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - D Rodrigues
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - R Ferreira
- Organic Chemistry of Natural Products and Agrifood (QOPNA), Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - B Colaço
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Department of Zootechnics, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - P S Gomes
- Laboratory of Pharmacology and Cellular Biocompatibility, Faculty of Dental Medicine, University of Porto, UP, 4200-393, Porto, Portugal
| | - M J Pires
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - A Gama
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Animal and Veterinary Research Centre (CECAV), School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
| | - P A Oliveira
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, 5001-911, Vila Real, Portugal
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15
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Henriques A, Arantes-Rodrigues R, I Faustino-Rocha A, I Teixeira-Guedes C, Pinho-Oliveira J, Talhada D, H Teixeira J, Andrade A, Colaço B, N Paiva-Cardoso M, J Pires M, MVD Ferreira A, M Nunes F, A Oliveira P. The effects of whole green tea infusion on mouse urinary bladder chemical carcinogenesis. Iran J Basic Med Sci 2014; 17:145-8. [PMID: 24711900 PMCID: PMC3976754] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 08/10/2013] [Indexed: 11/27/2022]
Abstract
OBJECTIVE(S) Green tea (GT) is one of the most popular beverages worldwide whose beneficial effects on health have been demonstrated. Recent studies suggest that GT may contribute to reduction of cancer risk and progression. The aim of this study was to evaluate the effects of whole GT on urinary bladder chemical carcinogenesis in male and female ICR mice. MATERIALS AND METHODS The GT characterization was performed using spectrophotometric methods. Urinary bladder lesions were induced using N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN) by gavage during 10 weeks and whole GT (0.5%) was provided ad libitum during 20 weeks. RESULTS Animals from groups BBN+GT and BBN only developed preneoplastic lesions. CONCLUSION We did not observe any effects by GT infusion administration on urinary bladder cancer development.
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Affiliation(s)
- Andreia Henriques
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Regina Arantes-Rodrigues
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Ana I Faustino-Rocha
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Catarina I Teixeira-Guedes
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Jacinta Pinho-Oliveira
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Daniela Talhada
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - José H Teixeira
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Andreia Andrade
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Bruno Colaço
- Department of Zootechnics, University of Trás-os-Montes and Alto Douro, 911 Vila Real, Portugal,Center for the Study of Animal Sciences (CECA), University of Porto, 4485-661, Porto, Portugal,Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Maria N Paiva-Cardoso
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Maria J Pires
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal,Center for the Study of Animal Sciences (CECA), University of Porto, 4485-661, Porto, Portugal,Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal
| | - Ana MVD Ferreira
- Chemistry Research Center, CQ-VR, University of Trás-os-Montes and Alto Douro, 5001-801, Vila Real, Portugal
| | - Fernando M Nunes
- Chemistry Research Center, CQ-VR, University of Trás-os-Montes and Alto Douro, 5001-801, Vila Real, Portugal
| | - Paula A Oliveira
- Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal,Center for the Study of Animal Sciences (CECA), University of Porto, 4485-661, Porto, Portugal,Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, 5001-911, Vila Real, Portugal,Corresponding author: Paula A. Oliveira. Department of Veterinary Sciences, ECAV, University of Trás-os-Montes and Alto Douro, UTAD, www.utad.pt, 5001-911, Vila Real, Portugal, Fax: +351259350480, Tel: +351259350651,
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16
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Conceição-Pereira I, Paula-Santos NM, Pereira FO, Pires MJ, Palomino LF, Colaço AA, Oliveira PA. Physiologic parameters variation in ICR mice during a chemical induced liver carcinogenesis experiment. BMC Proc 2010. [DOI: 10.1186/1753-6561-4-s2-p33] [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: 11/10/2022] Open
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17
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Conceição-Pereira I, Paula-Santos NM, Pereira FO, Pires MJ, Palomino LF, Colaço AA, Oliveira PA. Physiologic parameters variation in ICR mice during a chemical induced liver carcinogenesis experiment. BMC Proc 2010. [PMCID: PMC3255030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Ivo Conceição-Pereira
- CECAV, Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Nuno M Paula-Santos
- CECAV, Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Filipa O Pereira
- CECAV, Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Maria J Pires
- CECAV, Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Luis F Palomino
- Department of Physiology, Veterinary Faculty, University of Santiago de Compostela, Lugo, Spain
| | - Aura A Colaço
- CECAV, Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Paula A Oliveira
- CECAV, Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
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Silvestre-Ferreira AC, Pastor J, Sousa AP, Pires MJ, Morales M, Abreu Z, Montoya JA. Blood types in the non-pedigree cat population of Gran Canaria. Vet Rec 2004; 155:778-9. [PMID: 15638004] [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: 05/01/2023]
Affiliation(s)
- A C Silvestre-Ferreira
- Department of Animal Medicine and Pathology, Veterinary Hospital, University of Trás-os-Montes e Alto Douro, 5001-911 Vila Real, Portugal
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Abstract
Recombinant cytochrome b5 was extracted into the reversed micelle phase of an anionic surfactant (AOT) in octane and back-extracted to a final aqueous phase. The extraction of the protein was controlled by an electrostatic mechanism, since it was dependent on the global charge of the protein. This was directly demonstrated by experiments with native and mutant cytochromes obtained by site directed mutagenesis. The back-extraction of cytochrome b5 to a fresh aqueous phase was decreased by factors that reduced the size of the water pool of the organic phase, such as high salt concentrations (1-2 mol dm-3 NaCl) and low temperatures (4 degrees C), probably because of an increase in a favourable interaction of this protein with the surfactant at closer distances.
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Affiliation(s)
- M J Pires
- Laboratório de Engenharia Bioquímica, Instituto Superior Técnico, Lisbon, Portugal
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Sarmento MJ, Pires MJ, Cabral JM, Aires-Barros MR. Liquid-liquid extraction of a recombinant protein, cytochrome b5, with aqueous two-phase systems of polyethylene glycol and potassium phosphate salts. J Chromatogr A 1994; 668:117-20. [PMID: 8004226 DOI: 10.1016/0021-9673(94)80099-5] [Citation(s) in RCA: 8] [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: 01/28/2023]
Abstract
The partitioning of cytochrome b5 in aqueous two-phase systems of polyethylene glycol (PEG) and potassium phosphate salts was investigated. Cytochrome b5 partitioning is enhanced with decreasing polymer molecular mass and with increasing tieline length and pH. The effect of cytochrome b5 mutation, by substitution of the glutamic acid at positions 56 and 92 of the polypeptide chain by a lysine, on protein partitioning was also studied. Partitioning of cytochrome b5 mutants shows the same dependence on tieline length and pH, following the order cytochrome b5 > mutant 56 > mutant 92.
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Affiliation(s)
- M J Sarmento
- Laboratório de Engenharia Bioquímica, Instituto Superior Técnico, Lisbon, Portugal
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21
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Abstract
Recombinant cytochrome b5 was extracted to a reversed micelle phase of a cationic surfactant (hexadecyltrimethylammonium bromide, CTAB) in cyclohexane/decanol and back-extracted to a fresh aqueous phase. Depending on the experimental conditions, i.e., temperature, pH, and ionic strength, the extraction is controlled by either hydrophobic (pH close to the pI and high ionic strength) or electrostatic (pH far from the pI and low ionic strength) interactions. The protein interacts strongly with the surfactant aggregate once it is extracted to the organic phase, and it is very difficult to back-extract it to a new aqueous phase.
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Affiliation(s)
- M J Pires
- Laboratório de Engenharia Bioquímica, Instituto Superior Técnico, Lisboa, Portugal
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Rech EL, Pires MJ. Tissue culture propagation of Mentha spp. by the use of axillary buds. Plant Cell Rep 1986; 5:17-18. [PMID: 24247957 DOI: 10.1007/bf00269708] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/1985] [Revised: 11/13/1985] [Indexed: 06/02/2023]
Abstract
A method is described for rapid multiplication from axillary buds of six Mentha species. Nodal segments from one-year old plants were grown on Murashige and Skoog medium (BMS), supplemented with BAP (1.0; 2.0 mg/l) and KIN (1.0 mg/l) and kept at 28 ± 1°C under fluorescent light for 30 days. After this period, several shoots (15-20 shoots per explant) with roots were produced which were placed in soil for further growth.
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Affiliation(s)
- E L Rech
- National Center for Genetic Resources, CENARGEN/EMBRAPA, P.O. Box 10.2372, 70.770, Brasília-DF, Brazil
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