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Freitas R, Ferreira E, Miranda A, Ferreira D, Relvas-Santos M, Castro F, Santos B, Gonçalves M, Quintas S, Peixoto A, Palmeira C, Silva AMN, Santos LL, Oliveira MJ, Sarmento B, Ferreira JA. Targeted and Self-Adjuvated Nanoglycovaccine Candidate for Cancer Immunotherapy. ACS Nano 2024; 18:10088-10103. [PMID: 38535625 DOI: 10.1021/acsnano.3c12487] [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] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Advanced-stage solid primary tumors and metastases often express mucin 16 (MUC16), carrying immature glycans such as the Tn antigen, resulting in specific glycoproteoforms not found in healthy human tissues. This presents a valuable approach for designing targeted therapeutics, including cancer glycovaccines, which could potentially promote antigen recognition and foster the immune response to control disease spread and prevent relapse. In this study, we describe an adjuvant-free poly(lactic-co-glycolic acid) (PLGA)-based nanoglycoantigen delivery approach that outperforms conventional methods by eliminating the need for protein carriers while exhibiting targeted and adjuvant properties. To achieve this, we synthesized a library of MUC16-Tn glycoepitopes through single-pot enzymatic glycosylation, which were then stably engrafted onto the surface of PLGA nanoparticles, generating multivalent constructs that better represent cancer molecular heterogeneity. These glycoconstructs demonstrated affinity for Macrophage Galactose-type Lectin (MGL) receptor, known to be highly expressed by immature antigen-presenting cells, enabling precise targeting of immune cells. Moreover, the glycopeptide-grafted nanovaccine candidate displayed minimal cytotoxicity and induced the activation of dendritic cells in vitro, even in the absence of an adjuvant. In vivo, the formulated nanovaccine candidate was also nontoxic and elicited the production of IgG specifically targeting MUC16 and MUC16-Tn glycoproteoforms in cancer cells and tumors, offering potential for precise cancer targeting, including targeted immunotherapies.
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Affiliation(s)
- Rui Freitas
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Eduardo Ferreira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
| | - Andreia Miranda
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Dylan Ferreira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Marta Relvas-Santos
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Flávia Castro
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Beatriz Santos
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Martina Gonçalves
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Sofia Quintas
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Andreia Peixoto
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Carlos Palmeira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- Immunology Department, Portuguese Oncology Institute of Porto (IPO-Porto), 4200-072 Porto, Portugal
- Health School of University Fernando Pessoa, 4249-004 Porto, Portugal
| | - André M N Silva
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- GlycoMatters Biotech, 4500-162 Espinho, Portugal
| | - Lúcio Lara Santos
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- GlycoMatters Biotech, 4500-162 Espinho, Portugal
- Department of Surgical Oncology, Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - Maria José Oliveira
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Bruno Sarmento
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal
- INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
- IUCS-CESPU, 4585-116 Gandra, Portugal
| | - José Alexandre Ferreira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal
- RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- GlycoMatters Biotech, 4500-162 Espinho, Portugal
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Soares J, Eiras M, Ferreira D, Santos DAR, Relvas-Santos M, Santos B, Gonçalves M, Ferreira E, Vieira R, Afonso LP, Santos LL, Dinis-Ribeiro M, Lima L, Ferreira JA. Stool Glycoproteomics Signatures of Pre-Cancerous Lesions and Colorectal Cancer. Int J Mol Sci 2024; 25:3722. [PMID: 38612533 PMCID: PMC11012158 DOI: 10.3390/ijms25073722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Colorectal cancer (CRC) screening relies primarily on stool analysis to identify occult blood. However, its sensitivity for detecting precancerous lesions is limited, requiring the development of new tools to improve CRC screening. Carcinogenesis involves significant alterations in mucosal epithelium glycocalyx that decisively contribute to disease progression. Building on this knowledge, we examined patient series comprehending premalignant lesions, colorectal tumors, and healthy controls for the T-antigen-a short-chain O-glycosylation of proteins considered a surrogate marker of malignancy in multiple solid cancers. We found the T-antigen in the secretions of dysplastic lesions as well as in cancer. In CRC, T-antigen expression was associated with the presence of distant metastases. In parallel, we analyzed a broad number of stools from individuals who underwent colonoscopy, which showed high T expressions in high-grade dysplasia and carcinomas. Employing mass spectrometry-based lectin-affinity enrichment, we identified a total of 262 proteins, 67% of which potentially exhibited altered glycosylation patterns associated with cancer and advanced pre-cancerous lesions. Also, we found that the stool (glyco)proteome of pre-cancerous lesions is enriched for protein species involved in key biological processes linked to humoral and innate immune responses. This study offers a thorough analysis of the stool glycoproteome, laying the groundwork for harnessing glycosylation alterations to improve non-invasive cancer detection.
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Affiliation(s)
- Janine Soares
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- REQUIMTE-LAQV, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mariana Eiras
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
| | - Dylan Ferreira
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- Center for Applied Medical Research, University of Navarra, 31008 Pamplona, Spain
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- INEB-Instituto Nacional de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
| | - Daniela A. R. Santos
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- Faculty of Medicine (FMUP), University of Porto, 4200-072 Porto, Portugal;
| | - Marta Relvas-Santos
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- INEB-Instituto Nacional de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
- REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Beatriz Santos
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
| | - Martina Gonçalves
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
| | - Eduardo Ferreira
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
| | - Renata Vieira
- Department of Pathology, Portuguese Oncology Institute of Porto, 4200-072 Porto, Portugal;
| | - Luís Pedro Afonso
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
- Department of Pathology, Portuguese Oncology Institute of Porto, 4200-072 Porto, Portugal;
| | - Lúcio Lara Santos
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- FF-I3ID, University Fernando Pessoa, 4249-004 Porto, Portugal
- GlycoMatters Biotech, 4500-162 Espinho, Portugal
- Department of Surgical Oncology, Portuguese Oncology Institute of Porto (IPO-Porto), 4200-072 Porto, Portugal
| | - Mário Dinis-Ribeiro
- Faculty of Medicine (FMUP), University of Porto, 4200-072 Porto, Portugal;
- Precancerous Lesions and Early Cancer Management Group, Research Center of IPO Porto (CI-IPOP), Rise@CI-IPOP (Health Research Group), Portuguese Institute of Oncology of Porto (IPO Porto), Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
- Department of Gastroenterology, Portuguese Oncology Institute of Porto, 4200-072 Porto, Portugal
| | - Luís Lima
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
| | - José Alexandre Ferreira
- Experimental Pathology and Therapeutics 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 Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; (J.S.); (M.E.); (D.F.); (D.A.R.S.); (M.R.-S.); (B.S.); (M.G.); (E.F.); (L.P.A.); (L.L.S.)
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- GlycoMatters Biotech, 4500-162 Espinho, Portugal
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Freitas R, Miranda A, Ferreira D, Relvas-Santos M, Castro F, Ferreira E, Gaiteiro C, Soares J, Cotton S, Gonçalves M, Eiras M, Santos B, Palmeira C, Correia MP, Oliveira MJ, Sarmento B, Peixoto A, Santos LL, Silva AMN, Ferreira JA. A multivalent CD44 glycoconjugate vaccine candidate for cancer immunotherapy. J Control Release 2024; 367:540-556. [PMID: 38301927 DOI: 10.1016/j.jconrel.2024.01.065] [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: 12/17/2023] [Revised: 01/18/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Cancer presents a high mortality rate due to ineffective treatments and tumour relapse with progression. Cancer vaccines hold tremendous potential due to their capability to eradicate tumour and prevent relapse. In this study, we present a novel glycovaccine for precise targeting and immunotherapy of aggressive solid tumours that overexpress CD44 standard isoform (CD44s) carrying immature Tn and sialyl-Tn (sTn) O-glycans. We describe an enzymatic method and an enrichment strategy to generate libraries of well-characterized cancer-specific CD44s-Tn and/or sTn glycoproteoforms, which mimic the heterogeneity found in tumours. We conjugated CD44-Tn-derived glycopeptides with carrier proteins making them more immunogenic, with further demonstration of the importance of this conjugation to overcome the glycopeptides' intrinsic toxicity. We have optimized the glycopeptide-protein maleimide-thiol conjugation chemistry to avoid undesirable cross-linking between carrier proteins and CD44s glycopeptides. The resulting glycovaccines candidates were well-tolerated in vivo, inducing both humoral and cellular immunity, including immunological memory. The generated antibodies exhibited specific reactivity against synthetic CD44s-Tn glycopeptides, CD44s-Tn glycoengineered cells, and human tumours. In summary, we present a promising prototype of a cancer glycovaccine for future therapeutical pre-clinical efficacy validation.
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Affiliation(s)
- Rui Freitas
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal / INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Andreia Miranda
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal / INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Dylan Ferreira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal / INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Marta Relvas-Santos
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal / INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal; REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Flávia Castro
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal / INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Eduardo Ferreira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
| | - Cristiana Gaiteiro
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
| | - Janine Soares
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; REQUIMTE-LAQV, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sofia Cotton
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Martina Gonçalves
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Mariana Eiras
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; REQUIMTE-LAQV, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Beatriz Santos
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Carlos Palmeira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; Immunology Department, Portuguese Oncology Institute of Porto (IPO-Porto), 4200-072 Porto, Portugal; Health School of University Fernando Pessoa, 4249-004 Porto, Portugal
| | - Margareta P Correia
- Cancer Biology & Epigenetics Group, Research Center of IPO Porto (CI-IPOP), 4200-072 Porto, Portugal
| | - Maria José Oliveira
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal / INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
| | - Bruno Sarmento
- i3S - Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal / INEB - Institute for Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal; IUCS-CESPU, 4585-116 Gandra, Portugal
| | - Andreia Peixoto
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal
| | - Lúcio Lara Santos
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; Health School of University Fernando Pessoa, 4249-004 Porto, Portugal; GlycoMatters Biotech, 4500-162 Espinho, Portugal; Department of Surgical Oncology, Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - André M N Silva
- ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; REQUIMTE-LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; GlycoMatters Biotech, 4500-162 Espinho, Portugal
| | - José Alexandre Ferreira
- Experimental Pathology and Therapeutics Group, Research Center of IPO-Porto (CI-IPOP), 4200-072 Porto, Portugal; RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto) / Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC Raquel Seruca), 4200-072 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313 Porto, Portugal; GlycoMatters Biotech, 4500-162 Espinho, Portugal.
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Oliveira I, Marinho S, Gonçalves M. Erector spinae plane block for surgery of esophageal atresia in a preterm neonate. Rev Esp Anestesiol Reanim (Engl Ed) 2022; 69:680-682. [PMID: 36344410 DOI: 10.1016/j.redare.2022.10.005] [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] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 10/22/2021] [Indexed: 06/16/2023]
Abstract
Pain management during and after thoracotomy is challenging in premature neonates. Ultrasound-guided fascial plane block techniques, such as the erector spinae plane block are a relatively new regional anesthesia technique and have emerged as an alternative to thoracic epidural due to its clinical effectiveness, ease of administration and theoretically being safer to perform. The relative ease of identifying anatomical landmarks compared to the paravertebral block, as well as its safety profile compared to an epidural, may have contributed to the erector spinae plane Bs growing popularity. Currently, however, the published evidence for the efficacy of regional anesthesia techniques in low birth weight newborns undergoing this surgery is limited to few isolated case reports. Herein we describe the use of unilateral erector spinae plane block as part of anesthesia and postoperative analgesia management of surgical correction of esophageal atresia in a preterm neonate.
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Affiliation(s)
- I Oliveira
- Hospital do Divino Espírito Santo, Ponta Delgada, Portugal.
| | - S Marinho
- Hospital do Divino Espírito Santo, Ponta Delgada, Portugal
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Panhan A, Gonçalves M, Cirino C, Cardozo A, Bérzin F. Evaluation of Torque, Electromyographic Activity and Neuromuscular Efficiency of the Internal Oblique Muscle in Pilates Practitioners. Muscles Ligaments Tendons J 2022. [DOI: 10.32098/mltj.04.2022.16] [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: 12/03/2022]
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Costa M, Valente A, Freitas M, Almeida C, Teixeira C, Gonçalves M, Tavares N, Almeida D, Caeiro C, Augusto I, Sousa I, Barbosa M. Clinical benefit and tolerability of CDK4/6 inhibitors in the treatment of breast cancer advanced in the geriatric population – real life data from a Hospital Center. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01519-2] [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: 11/19/2022]
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Gonçalves M, Rebelo A, Caetano AC, Costa D. Gastrointestinal: An unexpected cause of gastrointestinal bleeding in a patient with recurrent acute pancreatitis. J Gastroenterol Hepatol 2022. [PMID: 36217685 DOI: 10.1111/jgh.16020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/20/2022] [Accepted: 09/26/2022] [Indexed: 12/09/2022]
Affiliation(s)
- M Gonçalves
- Gastroenterology Department, Braga Hospital, Braga, Portugal
| | - A Rebelo
- Gastroenterology Department, Braga Hospital, Braga, Portugal
| | - A C Caetano
- Gastroenterology Department, Braga Hospital, Braga, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - D Costa
- Gastroenterology Department, Braga Hospital, Braga, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Guimarães/Braga, Portugal
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Panhan A, Gonçalves M, Cirino C, Eltz G, Villalba M, Cardozo A, Bérzin F. Power and total work of flexion and extension trunk in women Pilates practitioners. Sci Sports 2022. [DOI: 10.1016/j.scispo.2022.06.003] [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: 11/26/2022]
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André R, Azevedo F, Gonçalves M, Romão J, Saraiva R, Croca M, Abreu M. Body dysmorphic disorder treatment: about a clinical case. Eur Psychiatry 2022. [PMCID: PMC9566748 DOI: 10.1192/j.eurpsy.2022.994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
Body dysmorphic disorder (BDD) is a relatively common disorder characterized by a preoccupation with non-existent or slight defects in appearance. It was first described in 1886 by Morselli as dysmorphophobia.
Objectives
This work reviews the current available data on BDD and its treatment options and describes a clinical case that reports an improvement in symptomatology after surgery.
Methods
Non-systematic review of the literature with selection of scientific articles published in the past 10 years; by searching Pubmed and Medscape databases using the combination of MeSH descriptors. The following MeSH terms were used: “body dysmorphic disorder”, “dysmorphophobia”. Clinical file consultation.
Results
The usual treatment involves a combination of psychotherapy and pharmacotherapy. Antidepressant medication, mainly selective serotonin reuptake inhibitors (SSRIs) have been used. If the symptoms do not improve, a different SSRI can be considered or clomipramine, venlafaxine or second-generation antipsychotics can be useful.
Conclusions
The role of surgery remains controversial, several studies indicating that the symptoms typically worsen after an aesthetic procedure because the preoccupation shifts to a different body area. However a recent study reported 32 of the 41 patients that underwent surgery were highly satisfied with the outcome. In our clinical case, our patient, a 20-year-old female with non-delusional dysmorphic ideas about her nose initiated treatment with paroxetine with poor response and was, against medical opinion, submitted to a rhinoplasty. Three weeks after the surgery there was an improvement in preoccupation about her nose. More research should be made to clarify the role of surgery in this disorder that often lacks adequate therapeutical response.
Disclosure
No significant relationships.
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Gonçalves M, Félix F, Romão J, André R, Sereijo C, Ismail F. Seizures and alcohol withdrawal: A literature review. Eur Psychiatry 2022. [PMCID: PMC9567585 DOI: 10.1192/j.eurpsy.2022.2143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
Seizures occur in about 3% cases of alcohol withdrawal. They usually appear within 48 hours after abrupt cessation, and are characterized by a reduction in seizure threshold secondary to adaptation to alcohol. More than 50% of individuals will experience a new seizure and in 5% of these cases, progression to a sustained epilepticus status can occur.
Objectives
The aim is to do a review of the literature on alcohol withdrawal and the onset of seizures in individuals with alcohol addiction.
Methods
A literature review was conducted using the PubMed search database.
Results
Alcohol is a central nervous system (CNS) depressant and chronic consumption causes neuroadaptation in order to maintain homeostasis. This adaptation involves the upregulation of excitatory neurotransmitters systems and the downregulation of inhibitory ones. When consumption is abruptly discontinued, the depressive contribution of alcohol to a previously established balance is disrupted, resulting in withdrawal symptoms associated to a generalized CNS’ hyperexcitability state.Critical episodes increase the risk of delirium tremens, a fatal condition in 20% of untreated cases. Thus, the treatment and prevention of seizure recurrences is essential: the clinical guidelines of the American Society of Addiction Medicine 2020, offer an action proposal. Pharmacological therapy after seizures is the preferential treatment: intravenous administration of fast-acting benzodiazepines (lorazepam and diazepam) is the first line treatment.
Conclusions
It is essential to monitor signs and symptoms that alert us to the appearance of seizures associated to alcohol withdrawal, effectively treat these cases, prevent recurrences, and provide a quality follow-up for these patients.
Disclosure
No significant relationships.
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Romão J, Gonçalves M, André R, Félix F, Saraiva R, Abreu M. From Akute Primäre Verruckheit to Bouffée Delirante: The background of Acute Transient Psychosis. Eur Psychiatry 2022. [PMCID: PMC9567350 DOI: 10.1192/j.eurpsy.2022.519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Ever since the end of the 19th century that descriptions of acute and transient psychosis (ATP) have been found in the literature. Psychiatrists from different countries gave different names for these types of episodes, throughout the ages. Those early descriptions were an important part of the development of the concept of acute and transient psychotic disorders (F23: ICD-10). Objectives This review aims to provide historical background of the development of different concepts to describe ATP. Methods Non-systematic review of literature on acute and transient psychotic disorders, bouffee delirante, brief psychotic disorder, atypical psychosis. Results In 1876, K.Westphal introduced the term akute primäre Verruckheit, refering to a sudden paranoia associated with delusion ideas and hallucinations. In 1895, Magnan described Bouffée delirante, characterized by a recorrent, sudden psychosis with polymorphic symptoms. Later (1924), the term cycloid psychosis was introduced by K.Kleist: phasic psychosis with good prognosis. Different concepts appeared throughout history: psychogenic psychosis (Wimmer,1916); atypical psychosis (Mitsuda,1942), holodisfrenia (Barahona,1957). Nowadays, the classification systems include many of these concepts in the same categories: Schizophreniform disorder, Brief psychotic disorder (DSM-5), and ATP (F23 in ICD-10). Conclusions All throughout the History of Psychiatry, there was an evolution of concepts associated to ATP. They were strongly influenced by different time epochs. It is important to have context on the historical background of the concepts used in the contemporaneous Psychiatry. Diagnosis is challenging due to their heterogeneous presentation. There are not many studies available, because of ATP’s low diagnostic stability. Disclosure No significant relationships.
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Tomé C, Oliveira-Ramos F, Campanilho-Marques R, Mourão AF, Sousa S, Martins AP, Costa Reis P, Pinheiro Torres R, Melo AT, Teixeira RL, Gonçalves M, Santos MJ, Graça L, Fonseca JE, Moura RA. POS0496 CHILDREN WITH JUVENILE IDIOPATHIC ARTHRITIS HAVE ALTERATIONS IN B AND T FOLLICULAR CELL SUBSETS IN PERIPHERAL BLOOD. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundJuvenile idiopathic arthritis (JIA) is the most common rheumatic disease in children1. Our group has recently demonstrated that extended oligoarticular (eoJIA) and polyarticular JIA (pJIA) mostly evolve to a rheumatoid arthritis (RA) like phenotype in adulthood2. Disturbances in B cells, T follicular helper (Tfh) and T follicular regulatory (Tfr) cell immune responses are associated with the pathogenesis of RA3,4, but their exact role in JIA development is not entirely known.ObjectivesThe main goal of this study was to characterize the frequency and phenotype of B, Tfh and Tfr cells in peripheral blood of children with eoJIA and pJIA when compared to healthy controls and children with persistent oligoarticular JIA (poJIA).MethodsBlood samples were collected from children with eoJIA (n=5), pJIA (n=11) and poJIA (n=19) treated with disease modifying anti-rheumatic drugs. A group of age-matched healthy individuals (n=8) was used as control. Peripheral blood mononuclear cells were isolated and the frequency and phenotype of B, Tfh and Tfr cells were evaluated by flow cytometry.ResultsThe frequency of B, Tfh and Tfr cells was similar between JIA patients and controls. Children with eoJIA and pJIA, but not poJIA, had higher levels of naïve B cells and lower frequencies of post-switch memory B cells and plasmablasts when compared to controls. Th17-like Tfh cells were significantly increased in all JIA patients when compared to controls. B cell phenotype was similar between JIA patients and controls, but a reduced activated phenotype of Tfh cells was observed in JIA patients in comparison to controls.ConclusionChanges in B and Tfh cell subpopulations, but not in Tfr cells, were found in peripheral blood of children with JIA when compared to controls. The increased frequencies of Th17-like Tfh cells detected in JIA when compared to controls suggests a potential role of these cells in JIA pathogenesis. A treatment effect on the activation state of B, Tfh and Tfr cells cannot be excluded.References[1]Ravelli, A. & Martini, A. Juvenile Idiopathic Arthritis. Lancet 369, 767–778 (2007).[2]Oliveira-ramos, F. et al. Juvenile idiopathic arthritis in adulthood: fulfillment of classification criteria for adult rheumatic diseases, long-term outcomes and predictors of inactive disease, functional status and damage. 1–10 (2016)[3]Moura, R. A., Graca, L. & Fonseca, J. E. To B or not to B the conductor of rheumatoid arthritis orchestra. Clin. Rev. Allergy Immunol. 43, 281–291 (2012).[4]Deng, J., Wei, Y., Fonseca, V. R., Graca, L. & Yu, D. T follicular helper cells and T follicular regulatory cells in rheumatic diseases. Nat. Rev. Rheumatol. 15, 475–490 (2019).AcknowledgementsC. Tomé was supported by a fellowship from Fundação para a Ciência e a Tecnologia (FCT) (PD/BD/135520/2018), Portugal. This work was supported by a grant from Sociedade Portuguesa de Reumatologia.Disclosure of InterestsNone declared.
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Romão J, Gonçalves M, Ribeiro M, André R, Saraiva R, Abreu M. Growing use of valproic acid in substance use disorders. Eur Psychiatry 2022. [PMCID: PMC9567128 DOI: 10.1192/j.eurpsy.2022.628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Valproic acid is an antiepileptic drug used in different fields of Psychiatry. It is known mostly for its use in managing patients with bipolar affective disorder. In psychiatry of addiction, there is still no approved indications for its usage, but it is widely prescribed in treating alcohol and cocaine abuse, due to the existence of studies in these addictions. Objectives This review aims to clarify the relation between valproic acid and dependences, particularly cocaine. Methods Non-systematic literature review using a PubMed search, using the following key words: “valproate”; “cocaine use”. Results Cocaine dependence can decrease GABA levels in humans. Valproic acid has multiple mechanisms that favour the synthesis of GABA, potentiating its release and postsynaptic GABAergic response. Because of this, valproic acid was found effective in promoting abstinence and in reducing the use of cocaine. There are studies that support the valproic acid’s use in alcohol and cocaine dependences. Valproic acid has been shown to be promising in relapse prevention. It has also showed efficacy in the management of impulsivity and irritability, what makes it useful in managing patients with borderline personality disorder – patients at higher risk for alcohol or substance use disorders. Conclusions Cocaine addiction involves different phenomena and may respond to distinct pharmacologic approaches. Although some studies need to be confirmed by larger clinical trials, valproic acid seems a promising agent as one of some potential treatments for cocaine dependence. Further studies are required in this field to come to more reliable conclusions. Disclosure No significant relationships.
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André R, Romão J, Azevedo F, Gonçalves M, Sereijo C, Saraiva R, Croca M, Abreu M. The phenomenology of motivation. Eur Psychiatry 2022. [PMCID: PMC9567828 DOI: 10.1192/j.eurpsy.2022.1816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Introduction The concept of motivation pervades our professional and personal lives. Motivation is almost impossible to be observed directly, it is a construct for the interpretation of a behaviour that “calls the attention”. Objectives This work reviews the current available data on the phenomenological description of motivation and the abnormalities of motivation. Methods Non-systematic review of the literature with selection of scientific articles published in the past 10 years; by searching Pubmed and Medscape databases using the combination of MeSH descriptors. The following MeSH terms were used: “motivation”, “psychopathology”, “phenomenology”. Results Abnormalities in motivation may involve diminution or exacerbation. Anhedonia is the absence of pleasure in relation to usually pleasurable activities, it occurs in depression and schizophrenia where the pleasurable intrinsic motivation that acts as incentive for behaviour may be lost. In mania it may be increased so that mundane activities become unduly fascinating and rewarding. Conclusions Countless theories have been proposed to explain human motivation but each sheds light on specific aspects of motivation, neglecting others. This diversity creates confusion because most theories have areas of conceptual overlap and disagreement. To facilitate the development of studies, an agreement should be achieved on an operational definition of motivation. Disclosure No significant relationships.
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Gonçalves M, Romão J, André R, Félix F, Andrade G, Saraiva R, Dornelles E, Fernandes E, Abreu M, Chendo I, Ismail F. Cannabis use and cognitive impairment in schizophrenia. Eur Psychiatry 2022. [PMCID: PMC9566952 DOI: 10.1192/j.eurpsy.2022.1158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Neurocognitive deficits amongst patients with schizophrenia are considered one of schizophrenia’s central features. These deficits appear to be present from the first episode of psychosis (FEP) and certain cognitive impairments could be components of a genetic vulnerability to schizophrenia. Regarding research on cannabis and cognition in schizophrenia, different studies have assessed neurocognitive functions: memory, attention/vigilance, processing speed, verbal learning, executive functions, and verbal fluency. Objectives The aim is to do a review of recent findings concerning the association of cannabis use with cognition in schizophrenia. Methods A literature review was conducted using the PubMed search database. Results Patients with schizophrenia and concomitant cannabis use are associated with worse performance in immediate verbal learning, and in some studies with worse working memory performance. There is an improvement of verbal memory when they cease the cannabis’ consumption. Regarding attention capacity and memory types assessed, the results are controversial. In FEP, heavy cannabis use during the previous year correlates with slower processing speed. Also, FEP-patients with cannabis use but no family history of psychosis perform worse in executive functions, while those with a family history of psychosis perform better. Conclusions The studies of psychosis, cannabis and cognition differ in relevant aspects, which might be connected to the result variability. Therefore, before solid conclusions can be reached, it is important to carry out longitudinal studies to understand the changes in the cognitive variables, which can depend on the pattern of cannabis’ use (concurrent or prior to the FEP). Possible confounding variables that might be present should be acknowledged. Disclosure No significant relationships.
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Oliveira C, Caldas F, Gonçalves M. Dermatitis artefacta and psychiatric illness: Brief review and case report. Eur Psychiatry 2021. [PMCID: PMC9470846 DOI: 10.1192/j.eurpsy.2021.1628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Psychodermatologic disorders are conditions involving an interaction between the mind and the skin. Dermatitis artefacta (DA), also known as factitial dermatitis, is a frequently unrecognized psychocutaneous illness, in which the patient creates skin lesions to satisfy the unconscious need to presume a sick role. It is more common in women and in patients with a diagnosis of psychiatric illness. This is an exclusion diagnosis and organic causes should be ruled out. Treatment of DA can be challenging and it needs to involve a multidisciplinary approach consisting of dermatologists and mental health professionals. Objectives From a case report the authors intend to present a literature review of dermatitis artefacta. Methods Observation the patient and review the clinical file. Consultation published and referenced scientific articles on PubMed. Results 60 year old man, diagnosed with Bipolar Disorder, was admitted for manic decompensation of his pathology. During physical examination he had sparse erythematous lesions, more exuberant in the neck, scalp, belly and upper limbs. The diagnosis of artifact dermatitis was made after excluding other possible causes. Conclusions Treatment of DA can be challenging and it needs to involve a multidisciplinary approach. Dermatitis artefacta is a long-term disorder, and patients need regular follow up with a dermatologist and a psychiatrist because relapses are common. These doctors must be aware of this possible pathology in order to make a correct diagnosis and treatment of psychiatric disorders that sometimes coexist with skin lesions. The prognosis for most patients is poor leading to self-injury, scarring and poor cosmesis. Disclosure No significant relationships.
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Marguilho M, Gonçalves M, Pereira I, Marinho G, Nobre A. Persistant genital arousal disorder and venlafaxine: A case report. Eur Psychiatry 2021. [PMCID: PMC9475709 DOI: 10.1192/j.eurpsy.2021.1464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction In this presentation we describe the case of a woman referred to the Sexology Department after having developed symptoms of Persistent Genital Arousal (PGAD) for the last 5 years, during treatment for Depression with Venlafaxine. PGAD is a clinical entity first described in 2001 by Leiblum and Nathan. Despite having received more attention in the last few years, its etiology remains unclear, with numerous causal factors of different natures being suggested. Objectives We aim to describe this clinical case of PGAD and to discuss the possible etiological factors involved as well as to make a brief revision of the literature on this topic. Methods We conducted a detailed interview, focused on the nature of the complaints, psychological history, medications, diet and neurologic disorders and performed a thorough clinical examination. We also searched for relevant articles in medical databases such as PubMed and Google Scholar. Results A 52 year-old woman previously treated for Depression with Venlafaxine complains of involuntary sensations of genital arousal, with perceived vasocongestion, tingling and pulsatlity during her journey to work in public transportations. The symptoms subsided only after getting home 8-10 hours later and reaching orgasm by masturbating. She stopped Venlafaxine in 2015, but these symptoms persisted. Some authors suggest a link between SSRIs/SNRIs and PGAD. Conclusions PGAD is a relatively recent addition to our diagnostic catalog with increasingly more cases being reported in the last few years. It is likely that the condition, however, has no discrete etiology and that a customized approach will be necessary to successfully treat most patients.
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Nascimento S, Gonçalves M. The importance of mental and sexual health in addressing people with hiv - the double stigma. Eur Psychiatry 2021. [PMCID: PMC9475795 DOI: 10.1192/j.eurpsy.2021.1469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionHaving a mental disorder is associated with increased vulnerability to the transmission of the Human Immunodeficiency Virus (HIV) and the prevalence of HIV is higher in people with a severe mental disorder. People with psychiatric comorbidities such as bipolar affective disorder and depressive disorder, post-traumatic stress disorder (physical or sexual abuse) and/or psychoactive substance use have a higher risk of HIV infection.ObjectivesThis work is intended to expose the importance of integrating mental health care with the care of HIV patients.MethodsThe authors conducted a non-systematic review of the literature, conducting research through Pubmed and Medscape using the keywords ‘Preexposure prophylaxis’, ‘HIV’, ‘Mental health problems’.ResultsSeveral factors may contribute to the high comorbidity between HIV and Mental Disorders, including socio-demographic factors, weak social and environmental structures, as well as internalized stigma, social and experienced discrimination. Mental health problems may interfere with the care needed for prevention, including regular HIV testing and/or adherence to Preexposure Prophylaxis (PrEP); and influence access to and adherence to antiretroviral treatment.ConclusionsThis compelling evidence makes the necessary contribution of integrating mental health into an assessment and continuous treatment of the HIV patient, on the other hand, the assessment and treatment of mental disorders should address sexual health.
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Oliveira C, Caldas F, Gonçalves M, Freitas J. The coronavirus pandemic impact on involuntary hospitalization. Eur Psychiatry 2021. [PMCID: PMC9471198 DOI: 10.1192/j.eurpsy.2021.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionCompulsory admission is the last line of intervention in individuals who suffer from severe mental disorders, based on the principles of therapeutic need and social protection. In Portugal, the law configures this measure as a hospitalization by court order. The SARS-CoV-2 coronavirus is a global public health emergency, with multifaceted consequences for people’s lives and health. Several studies are showing a great impact of the pandemic on the overall mental health.ObjectivesThe aim is to assess the impact of the pandemic on the number of involuntary hospitalizations, their socio-demographic and clinical characteristics, and study the differences between 2019 and 2020.MethodsConsultation of all patient’s clinical files that were involuntarily admitted in Hospital Magalhães Lemos during 2019 and 2020. Statistical analysis of data.ResultsThe authors claim to investigate the impact of the pandemic on involuntary hospitalizations, the factors of admission and decompensation and other clinical characteristics, by comparing the involuntary hospitalizations during 2019 and 2020. The authors believe that the number of compulsory admissions increased significantly with the pandemic. They also believe that factors such as increased or relapsed consumption of alcohol and drugs, suicide attempts, missed appointments and long-term injectable medication are at the root of this increase in 2020.ConclusionsThis study helps to analyze the impact of the new coronavirus on compulsory hospitalizations and allows to understand the main factors that aggravate the underlying pathologies. Thus, understanding the targets of greater attention from psychiatrists to avoid the decompensation of patients in times of pandemic in which we currently live.DisclosureNo significant relationships.
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Oliveira C, Caldas F, Gonçalves M. Catatonia induced by abrupt discontinuation of clozapine - case report. Eur Psychiatry 2021. [PMCID: PMC9475639 DOI: 10.1192/j.eurpsy.2021.1452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Catatonia is characterized by a bizarre and severe psychomotor change. According to DSM-5, the presence of three or more symptoms is necessary to affirm the diagnosis: stupor, catalepsy, brain flexibility, mutism, negativism, posturing, mannerisms, stereotypes, agitation not influenced by external stimuli, grimaces, echolalia or echopraxia. The association between first- and second-generation antipsychotics (AP) and the onset of catatonia is well established in the literature. In contrast, clozapine is one of the second-generation APs that is recognized for its effectiveness in treating catatonia, rather than inducing it. However, it has been documented that abrupt discontinuation of clozapine can induce rapid clinical deterioration with multiple presentations including: psychoses, cholinergic rebound states, serotonergic syndromes and catatonia. Objectives Review the literature on catatonia associated with abrupt interruption of clozapine. Describe a clinical case. Methods Observation of the patient and consultation the clinical file. Non-systematic literature review on catatonia, clozapine, side effects associated with rapid discontinuation and respective treatment. Results 34-year-old man, with the diagnosis of Schizoaffective Disorder. Admitted due to an acute decompensation with psychotic symptoms resistant to treatment requiring the introduction of clozapine. In the absence of a clinical response, clozapine was suspended, with the consequent appearance of catatonia resistant to benzodiazepines in high doses. Conclusions Its already well established that the abrupt discontinuation of clozapine can trigger catatonia. This clinical case and literature review suits to emphasize the importance of educating psychiatrists on the adverse effects of psychiatric drugs and, in this case, the cautious discontinuation of clozapine in order to avoid its rebound effects.
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Goossens R, van den Boogaard M, Lemmers R, Balog J, van der Vliet P, Willemsen I, Schouten J, Maggio I, van der Stoep N, Hoeben R, Tapscott S, Geijsen N, Gonçalves M, Sacconi S, Tawil R, van der Maarel S. FSHD / OPMD / MYOTONIC DYSTROPHY. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jacob M, Cardoso CG, Redondo M, Gonçalves M, Pinto M, Amorim A. Cystic fibrosis and amyotrophic lateral sclerosis, an unexpected association. Pulmonology 2020; 27:357-359. [PMID: 32739328 DOI: 10.1016/j.pulmoe.2020.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 11/25/2022] Open
Affiliation(s)
- M Jacob
- Pulmonology Department, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal.
| | - C G Cardoso
- Pulmonology Department, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal
| | - M Redondo
- Pulmonology Department, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal; Cystic Fibrosis Reference Center, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal
| | - M Gonçalves
- Pulmonology Department, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal; Faculty of Medicine of Porto University, Porto, Portugal; IBMC/i3S - Institute for Research and Innovation in Health, Porto, Portugal
| | - M Pinto
- Neurology Department, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal
| | - A Amorim
- Pulmonology Department, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal; Cystic Fibrosis Reference Center, Centro Hospitalar Universitário de São João, EPE, Porto, Portugal; Faculty of Medicine of Porto University, Porto, Portugal
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Gonçalves R, Ferreira J, Araújo C, Gonçalves M, Pedroso S, Pinho C. Burnout among Portuguese oncology healthcare providers – Differences between pediatric an adult teams. Eur Psychiatry 2020. [DOI: 10.1016/j.eurpsy.2016.01.262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
IntroductionBurnout is characterized by emotional exhaustion, depersonalization and reduced personal accomplishment, resulting from the inability to cope with chronic job stress. The literature suggests that staffs working in adult oncology are at risk of burnout. At the same time, research found that pediatric staff experiences a different set of stressors when compared with colleagues working in adult oncology. However, no studies were identified which directly compared prevalence and sources of Burn-out on pediatric and adult oncology staff.ObjectivesTo compare the differences on prevalence and sources of burnout between pediatric and adult oncology multidisciplinary teams.MethodsPediatric and adult oncology professionals, including medical and nursing from a Portuguese oncology center completed the Portuguese version of the Copenhagen Burnout Inventory. Data was analyzed using SPSS.ResultsSince the study is currently ongoing the authors will only be able to provide final results and conclusions by the time of submission of our work presentation, in March 2016. However, according to the literature available, we are expecting to found symptoms of Burnout in the superior limit of normality, with differences in the major sources of stress between adult and pediatric professionals.ConclusionThe differences in the challenges experienced by adult and pediatric teams highlight the importance of adequate prevention strategies to specific needs of each unit. Further investigation of stress across a wider range of professional disciplines is required in order to explore this gap.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Rojas J, Ardila-Rodríguez L, Diniz M, Gonçalves M, Ribeiro B, Rezende M. Highly porous multiwalled carbon nanotube buckypaper using electrospun polyacrylonitrile nanofiber as a sacrificial material. Heliyon 2019; 5:e01386. [PMID: 30963122 PMCID: PMC6434183 DOI: 10.1016/j.heliyon.2019.e01386] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 02/06/2019] [Accepted: 03/15/2019] [Indexed: 11/28/2022] Open
Abstract
Polyacrylonitrile (PAN) was solubilized in N,N-dimethyl formamide (DMF) and the electrospinning process has been employed to obtain PAN nanofibers (PF). Multiwalled carbon nanotubes (MWCNT) were dispersed with the aid of Triton X-100 surfactant and subsequently centrifugated. Buckypapers (BP/PF) were prepared by vacuum filtration procedure of MWCNT suspension supernatant stacking four PF layers over a nylon membrane. The PF removal was carried out by immersing the BP/PF system in DMF and removal periods of 10 and 30 min were evaluated. Scanning electron microscopy (SEM) has not shown any PAN residue in the MWCNT network resulting in highly porous BP. However, by Fourier transform infrared spectroscopy (FT-IR) a PAN band was found around of 2243 cm-1 corresponding to nitrile group (C≡N). Besides, PAN leftover was evidenced by thermogravimetric analysis (TGA), high-resolution transmission electron microscopy (HR-TEM), electrical characterization through four-point probe, nitrogen adsorption at 77 K, and X-ray diffraction (XRD).
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Affiliation(s)
- J.A. Rojas
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, São José dos Campos, SP, 12231280, Brazil
| | - L.A. Ardila-Rodríguez
- Technological Institute of Aeronautics (ITA), Division of Fundamental Science, São José dos Campos, SP, 12228, Brazil
| | - M.F. Diniz
- Departamento de Ciência e Tecnologia Aeroespacial (DCTA), Instituto de Aeronáutica e Espaço (IAE), São José dos Campos, SP, 12228904, Brazil
| | - M. Gonçalves
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, São José dos Campos, SP, 12231280, Brazil
| | - B. Ribeiro
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, São José dos Campos, SP, 12231280, Brazil
| | - M.C. Rezende
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, São José dos Campos, SP, 12231280, Brazil
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Joana GS, Nogueira MS, Sandrini E, Bittencourt G, Salmon H, Fairbanks L, Fortes SS, Salata C, Teixeira FC, Gonçalves M. Radiation therapy facility risk analysis in Brazil with SEVRRA software. J Radiol Prot 2018; 38:1128-1139. [PMID: 30089709 DOI: 10.1088/1361-6498/aad919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Risk assessment deals with processes, accident-initiating events, barriers and risk ratings to unveil the fragility and weakness of some processes; within this study, specifically related to radiation therapy facilities. Barriers are technical or organizational safety measures put in place to avoid, prevent, detect, control, reduce or mitigate the consequences of an accident once an initiating event has occurred. In this work, radiological risk analysis was performed for a set of 20 Brazilian radiotherapy facilities making use of the freeware sevrra risk-management software. The objective of this study was to define parameters that could be useful in creating an overall risk profile. This profile would be helpful for establishing priorities for decision making and support a risk-informed regulatory process. The most relevant missing barriers in facilities were identified according to three parameters: the 'importance index', 'impacted facilities index' and the 'barrier-effectiveness index'. Barriers such as 'in vivo dosimetry in the first treatment session', 'weekly in vivo dosimetry to detect errors in the dose delivering process', 'annual external audit for the control of reference dose rate' and 'independent verification of calibration by various medical physicists with a different dosimetry equipment' were found to be the most effective in reducing the risk level of the facilities. The present investigation reinforces the need to strengthen the mechanisms that guarantee the effectiveness of such barriers in radiation therapy procedures.
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Affiliation(s)
- G S Joana
- Comissão Nacional de Energia Nuclear-CNEN, R. General Severiano, 90, 22290-151, Rio de Janeiro, RJ, Brazil. Pós-Graduação em Ciências e Técnicas Nucleares-Escola de Engenharia-DEN/UFMG, Av. Presidente Antônio Carlos, 6.627, 31270-901, Belo Horizonte, MG, Brazil
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Silva A, Antunes J, Peixoto J, Gonçalves M, Alves F, Silva J, Garrido N, Matos M. Domestic Violence: The Impact of a Nature-Based Holistic Development Program on Victims' Well-Being. Ecopsychology 2018. [DOI: 10.1089/eco.2018.0019] [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: 11/13/2022]
Affiliation(s)
- A. Silva
- Portuguese Wildlife Society, Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, Aveiro, Portugal
| | - J. Antunes
- Portuguese Wildlife Society, Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
| | - J. Peixoto
- Portuguese Wildlife Society, Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
| | - M. Gonçalves
- School of Psychology & CIPsi, University of Minho, Campus de Gualtar, Braga, Portugal
| | - F. Alves
- Portuguese Wildlife Society, Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
| | - J. Silva
- Portuguese Wildlife Society, Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
| | - N. Garrido
- Portuguese Wildlife Society, Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
| | - M. Matos
- School of Psychology & CIPsi, University of Minho, Campus de Gualtar, Braga, Portugal
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Rabin C, Gonçalves M, Duarte SB, González-Sprinberg GA. Upper bound dose values for meson radiation in heavy-ion therapy. J Radiol Prot 2018; 38:621-631. [PMID: 29440626 DOI: 10.1088/1361-6498/aaaf23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Radiation treatment of cancer has evolved to include massive particle beams, instead of traditional irradiation procedures. Thus, patient doses and worker radiological protection have become issues of constant concern in the use of these new technologies, especially for proton- and heavy-ion-therapy. In the beam energies of interest of heavy-ion-therapy, secondary particle radiation comes from proton, neutron, and neutral and charged pions produced in the nuclear collisions of the beam with human tissue atoms. This work, for the first time, offers the upper bound of meson radiation dose in organic tissues due to secondary meson radiation in heavy-ion therapy. A model based on intranuclear collision has been used to follow in time the nuclear reaction and to determine the secondary radiation due to the meson yield produced in the beam interaction with nuclei in the tissue-equivalent media and water. The multiplicity, energy spectrum, and angular distribution of these pions, as well as their decay products, have been calculated in different scenarios for the nuclear reaction mechanism. The results of the produced secondary meson particles has been used to estimate the energy deposited in tissue using a cylindrical phantom by a transport Monte Carlo simulation and we have concluded that these mesons contribute at most 0.1% of the total prescribed dose.
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Affiliation(s)
- C Rabin
- Instituto de Física, Facultad de Ciencias, Iguá 4225, 11400 Montevideo, Uruguay
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Joana G, Salata C, Leal P, Vasconcelos R, Couto ND, Teixeira FC, Soares AD, Santini ES, Gonçalves M. Ion chambers compliance results of Brazilian radiation therapy facilities. J Radiol Prot 2018; 38:394-406. [PMID: 29214980 DOI: 10.1088/1361-6498/aa9fba] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The Brazilian Nuclear Energy Commission (cnen) has been making a constant effort to keep up to date with international standards and national needs to strengthen the status of radiological protection of the country. The guidelines related to radiation therapy facilities have been revised in the last five years in order to take into consideration the most relevant aspects of the growing technology as well as to mitigate the accidents or incidents observed in practice. Hence, clinical dosimeters have gained special importance in this matter. In the present work, we discuss the effectiveness of regulation and inspections to the enforcement of instrument calibration accuracy for the improvement of patient dosimetry and quality control. As a result, we observed that the number of calibrated instruments, mainly well chambers, is increasing each year. The same behavior is observed for instruments employed in technologically advanced radiation treatments such as intensity modulated radiotherapy, volumetric therapy and stereotatic radiosurgery. We ascribe this behavior to the new regulation.
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Affiliation(s)
- G Joana
- Comissão Nacional de Energia Nuclear, R. General Severiano, 90, 22290-151, Rio de Janeiro, RJ, Brazil
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Rodrigues AM, Canhão H, Marques A, Ambrósio C, Borges J, Coelho P, Costa L, Fernandes S, Gonçalves I, Gonçalves M, Guerra M, Marques ML, Pimenta S, Pinto P, Sequeira G, Simões E, Teixeira L, Vaz C, Vieira-Sousa E, Vieira R, Alvarenga F, Araújo F, Barcelos A, Barcelos F, Barros R, Bernardes M, Canas da Silva J, Cordeiro A, Costa M, Cunha-Miranda L, Cruz M, Duarte AC, Duarte C, Faustino A, Figueiredo G, Fonseca JE, Furtado C, Gomes J, Lopes C, Mourão AF, Oliveira M, Pimentel-Santos FM, Ribeiro A, Sampaio da Nóvoa T, Santiago M, Silva C, Silva-Dinis A, Sousa S, Tavares-Costa J, Terroso G, Vilar A, Branco JC, Tavares V, Romeu JC, da Silva J. Portuguese recommendations for the prevention, diagnosis and management of primary osteoporosis - 2018 update. Acta Reumatol Port 2018; 43:10-31. [PMID: 29602163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Advances in osteoporosis (OP)case definition, treatment options, optimal therapy duration and pharmacoeconomic evidence in the national context motivated the Portuguese Society of Rheumatology (SPR) to update the Portuguese recommendations for the diagnosis and management of osteoporosis published in 2007. METHODS SPR bone diseases' working group organized meetings involving 55 participants (rheumatologists, rheumatology fellows and one OP specialist nurse) to debate and develop the document. First, the working group selected 11 pertinent clinical questions for the diagnosis and management of osteoporosis in standard clinical practice. Then, each question was investigated through literature review and draft recommendations were built through consensus. When insufficient evidence was available, recommendations were based on experts' opinion and on good clinical practice. At two national meetings, the recommendations were discussed and updated. A draft of the recommendations full text was submitted to critical review among the working group and suggestions were incorporated. A final version was circulated among all Portuguese rheumatologists before publication and the level of agreement was anonymously assessed using an online survey. RESULTS The 2018 SPR recommendations provide comprehensive guidance on osteoporosis prevention, diagnosis, fracture risk assessment, pharmacological treatment initiation, therapy options and duration of treatment, based on the best available evidence. They attained desirable agreement among Portuguese rheumatologists. As more evidence becomes available, periodic revisions will be performed. Target audience and patient population: The target audience for these guidelines includes all clinicians. The target patient population includes adult Portuguese people. Intended use: These recommendations provide general guidance for typical cases. They may not be appropriate in all situations - clinicians are encouraged to consider this information together with updated evidence and their best clinical judgment in individual cases.
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Reis R, Leão A, Santos A, Maia S, Almeida J, Gonçalves M. Comparison of cardiorespiratory sleep study versus polysomnography for the diagnosis and decision to treat of obstructive sleep apnea. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mota D, Almeida F, Oliveira A, Silva J, Gonçalves M, Ribeiro J, Martins V, Andrade J, Macedo A. Ect Combined with Clomipramine and rTMS in an OCD Patient with Secondary Severe Depression. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
IntroductionObsessive-compulsive disorder (OCD) has high rates of comorbidity with mood disorders, mainly major depressive disorder (MDD). Symptoms of depression are usually secondary to severe and disabling OCD. Electroconvulsive therapy (ECT) has been an effective and well tolerated therapeutic alternative in the management of refractory MDD. Other neuromodulation techniques, such as repetitive transcranial magnetic stimulation (rTMS), have well known efficacy in MDD and also have shown positive results, in clinical trials, treating other psychiatric disorders such as OCD.Objectives/aimsTo determine the efficacy of combining rTMS, ECT and clomipramine in the treatment of severe OCD with comorbid severe MDD.MethodsThe authors report a case of a 54-year-old male patient diagnosed with severe OCD for 23 years. He has been submitted to several drug treatments and intensive cognitive-behavioural therapy (CBT) always with poor response. The patient was admitted in the beginning of 2016 in our inpatient unit. Besides continuing drug treatment (clomipramine IV) and CBT, he was submitted to 12 ECT sessions during one month (3 sessions per week) and to daily sessions of rTMS during the following month.Outcome measures were obtained using Y-BOCS for OCD and HAM-D for depression.ResultsOur patient responded to ECT with mood improvement after session 4 to full euthymic state at the final session. He also responded well to rTMS with Y-BOCS score reduction.ConclusionCombined ECT and rTMS treatment with clomipramine IV and CBT was effective in our patient with a severe form of both disorders (OCD and MDD).Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Gonçalves M, Teixeira J, Diana R, Craveiro A. Gender Difference among Psychiatric Patient's Profile in Emergency Department. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
IntroductionOver the past 40 years, services for psychiatric patients have become increasingly deinstitutionalized, shifting away from inpatient facilities. as a result, patients seek other avenues for treatment, including outpatient facilities and community resources. Unfortunately, those resources have also become increasingly constrained by widespread budget cuts, leaving patients with the health care system's last remaining safety net—the emergency department (ED).Because EDs are seeing increasing numbers of patients, hospital administrators have recognized the importance of improving throughput and the quality of care delivered in EDs.The aim of this report is to investigate the gender difference among patient's profile in psychiatric emergency room, assessing the socio-demographic and clinical characteristics, reasons for attendance and practices.MethodsRetrospective and observational study, conducted at Centro Hospitalar e Universitário de Coimbra, during a three month period. Statistical analysis of data with “SPSS 21”.ResultsDuring the three months period, a total of 2309 patients were admitted in Psychiatric ED, 1485 female and 824 male.Regarding clinical data, the authors are expecting to find different psychopathology among male and female, as well as psychiatric comorbidities, diagnoses after discharge, treatment conducts, social support and different rates of psychiatric comorbidities.ConclusionsFactors such as patient's vulnerability, defined by socio-demographic elements, characteristic as the type and severity of their mental illness, social support, treatment adherence, with significant implications of prognosis, costs and care. The conducted study enabled us to outline a profile of male and female psychiatric patients in ED.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Studart Neto A, Soares Neto H, Simabukuro M, Gonçalves M, Fortini I, Castro L, Nitrini R. Rapidly progressive dementia in a neurologic unit of a tertiary hospital in Brazil. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gonçalves M, Vieira P, Resende L, Durães J, Rosa N, Teixeira J, Silva G. Metabolic Profile and Cardiovascular Risk in a Population of Renal Transplant Recipients. Transplant Proc 2015; 47:985-8. [DOI: 10.1016/j.transproceed.2015.03.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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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Bernardo M, Mendes S, Lapa N, Gonçalves M, Mendes B, Pinto F, Lopes H. Leaching behaviour and ecotoxicity evaluation of chars from the pyrolysis of forestry biomass and polymeric materials. Ecotoxicol Environ Saf 2014; 107:9-15. [PMID: 24905691 DOI: 10.1016/j.ecoenv.2014.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 05/09/2014] [Accepted: 05/12/2014] [Indexed: 06/03/2023]
Abstract
The main objective of this study was to assess the environmental risk of chars derived from the pyrolysis of mixtures of pine, plastics, and scrap tires, by studying their leaching potential and ecotoxicity. Relationships between chemical composition and ecotoxicity were established to identify contaminants responsible for toxicity. Since metallic contaminants were the focus of the present study, an EDTA washing step was applied to the chars to selectively remove metals that can be responsible for the observed toxicity. The results indicated that the introduction of biomass to the pyrolysis feedstock enhanced the acidity of chars and promote the mobilisation of inorganic compounds. Chars resulting from the pyrolysis of blends of pine and plastics did not produce ecotoxic eluates. A relationship between zinc concentrations in eluates and their ecotoxicity was found for chars obtained from mixtures with tires. A significant reduction in ecotoxicity was found when the chars were treated with EDTA, which was due to a significant reduction in zinc in chars after EDTA washing.
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Affiliation(s)
- M Bernardo
- Unidade de Biotecnologia Ambiental, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - S Mendes
- Unidade de Biotecnologia Ambiental, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - N Lapa
- Unidade de Biotecnologia Ambiental, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; Unidade de Tecnologias de Conversão e Armazenamento de Energia, Laboratório Nacional de Energia e Geologia, Ed. J, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal
| | - M Gonçalves
- Unidade de Biotecnologia Ambiental, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - B Mendes
- Unidade de Biotecnologia Ambiental, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - F Pinto
- Unidade de Tecnologias de Conversão e Armazenamento de Energia, Laboratório Nacional de Energia e Geologia, Ed. J, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal
| | - H Lopes
- Unidade de Tecnologias de Conversão e Armazenamento de Energia, Laboratório Nacional de Energia e Geologia, Ed. J, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal
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Romao V, Saavedra M, Costa M, Macieira C, Vieira-Sousa E, Ramos F, Resende C, Capela S, Barros R, Polido-Pereira J, Rodrigues A, Madruga-Dias J, Campanilho-Marques R, Ponte C, Castro A, Furtado C, Fernandes S, Gonçalves M, Pereira da Silva J, Canhao H, Fonseca J. AB0413 Hepatitis B Serologic Profile and Reactivation in Rheumatic Patients Treated with Biological Therapies – Single Centre Experience. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Gomes F, Gonçalves D, Gonçalves M, Nascimento M, Novo R, Soares C. EPA-1732 – Gender transition: biological and psychosocial features of adjusting to sex reassignment - crossing literature with psychometric data from a clinical sexology unit in lisbon. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78866-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Gonçalves M, Rute A, Costa A, Severo M, Guilleminault C, Barros H. SLEEP patterns at 6months and at 4/5years of age in a portuguese birth cohort. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abu-Darwish M, Gonçalves M, Cabral C, Cavaleiro C, Salgueiro L. Chemical composition and antifungal activity of essential oil fromJuniperus phoeniceasubsp.Phoeniceaberries from Jordan. Acta Alimentaria 2013. [DOI: 10.1556/aalim.42.2013.4.5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bugalho P, Oliveira-Maia A, Correia A, Vieira A, Gonçalves M, Ribeiro O. Motor and cognitive dysfunction in Parkinson'/INS;s disease patients with impulse control disorders. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.587] [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: 11/26/2022]
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Vilaragut JJ, Duménigo C, Delgado JM, Morales J, McDonnell JD, Ferro R, Ortiz López P, Ramírez ML, Pérez Mulas A, Papadopulos S, Gonçalves M, López Morones R, Sánchez Cayuela C, Cascajo Castresana A, Somoano F, Álvarez C, Guillén A, Rodríguez M, Pereira PP, Nader A. Prevention of accidental exposure in radiotherapy: the risk matrix approach. Health Phys 2013; 104:139-150. [PMID: 23274816 DOI: 10.1097/hp.0b013e3182680379] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Knowledge and lessons from past accidental exposures in radiotherapy are very helpful in finding safety provisions to prevent recurrence. Disseminating lessons is necessary but not sufficient. There may be additional latent risks for other accidental exposures, which have not been reported or have not occurred, but are possible and may occur in the future if not identified, analyzed, and prevented by safety provisions. Proactive methods are available for anticipating and quantifying risk from potential event sequences. In this work, proactive methods, successfully used in industry, have been adapted and used in radiotherapy. Risk matrix is a tool that can be used in individual hospitals to classify event sequences in levels of risk. As with any anticipative method, the risk matrix involves a systematic search for potential risks; that is, any situation that can cause an accidental exposure. The method contributes new insights: The application of the risk matrix approach has identified that another group of less catastrophic but still severe single-patient events may have a higher probability, resulting in higher risk. The use of the risk matrix approach for safety assessment in individual hospitals would provide an opportunity for self-evaluation and managing the safety measures that are most suitable to the hospital's own conditions.
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Norte AC, de Carvalho IL, Ramos JA, Gonçalves M, Gern L, Núncio MS. Diversity and seasonal patterns of ticks parasitizing wild birds in western Portugal. Exp Appl Acarol 2012; 58:327-339. [PMID: 22669280 DOI: 10.1007/s10493-012-9583-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Accepted: 05/22/2012] [Indexed: 05/28/2023]
Abstract
The diversity and abundance of questing ticks and ticks parasitizing birds was assessed during 1 year in two recreational forests in western Portugal, a suburban forest and an enclosed game area. The aim of this study was to assess the distribution and seasonality of tick species and to understand the role of bird species as hosts for ticks. Ixodes ricinus was the most abundant questing tick collected in the enclosed game area, whereas in the suburban forest, only three ticks were collected by blanket dragging. Tick species parasitizing birds included I. ricinus, I. frontalis, I. arboricola, I. acuminatus, Haemaphysalis punctata, Hyalomma marginatum and H. lusitanicum. This is the first record of I. arboricola in Portugal. Tick prevalence and intensity of infestation differed between study areas and was higher in birds from the game area where a large population of deer and wild boar may support tick populations. Ground and shrub dwelling bird species such as Turdus merula, Erithacus rubecula and Sylvia melanocephala were the most heavily parasitized by ticks, but the importance of different bird species as hosts of larvae and nymphs of I. ricinus and I. frontalis differed. Therefore, different bird species may contribute differently for tick population maintenance.
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Affiliation(s)
- A C Norte
- Department of Life Sciences, Institute of Marine Research IMAR/CMA, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal.
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Jorba O, Dabdub D, Blaszczak-Boxe C, Pérez C, Janjic Z, Baldasano JM, Spada M, Badia A, Gonçalves M. Potential significance of photoexcited NO2on global air quality with the NMMB/BSC chemical transport model. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012jd017730] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Armas M, Ruivo C, Alves R, Gonçalves M, Teixeira L. Paracoccidioidomicose pulmonar: relato de caso clínico com aspetos em tomografia computorizada de alta resolução. Revista Portuguesa de Pneumologia 2012; 18:190-3. [DOI: 10.1016/j.rppneu.2012.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Accepted: 01/04/2012] [Indexed: 10/28/2022] Open
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Campainha S, Gonçalves M, Tavares V, Castelões P, Marinho A, Neves S. Granulomatosis with polyangiitis initially misdiagnosed as lung cancer. Rev Port Pneumol 2012; 19:45-8. [PMID: 22748944 DOI: 10.1016/j.rppneu.2012.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 03/12/2012] [Indexed: 10/28/2022] Open
Abstract
Granulomatosis with Polyangiitis (GPA), which was formerly named Wegener's Granulomatosis (WG) is a systemic disease characterized by necrotizing granulomatous inflammation and vasculitis that primarily involves upper and lower respiratory tract, as well as kidneys. Diagnosing GPA on the basis of transthoracic fine needle aspiration (TFNA) may be problematic, as it can be misdiagnosed as cancer. We describe a patient with a probable GPA which was originally diagnosed as malignancy, but who responded to lung cancer chemotherapy.
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Affiliation(s)
- S Campainha
- Serviço de Pneumologia, Centro Hospitalar de Vila Nova de Gaia/Espinho EPE, Vila Nova de Gaia, Portugal.
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Bernardo M, Lapa N, Gonçalves M, Mendes B, Pinto F, Fonseca I, Lopes H. Physico-chemical properties of chars obtained in the co-pyrolysis of waste mixtures. J Hazard Mater 2012; 219-220:196-202. [PMID: 22520075 DOI: 10.1016/j.jhazmat.2012.03.077] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 02/22/2012] [Accepted: 03/29/2012] [Indexed: 05/31/2023]
Abstract
The present work aims to perform a multistep upgrading of chars obtained in the co-pyrolysis of PE, PP and PS plastic wastes, pine biomass and used tires. The quality of the upgraded chars was evaluated by measuring some of their physico-chemical properties in order to assess their valorisation as adsorbents' precursors. The crude chars were submitted to a sequential solvent extraction with organic solvents of increasing polarity (hexane, mixture 1:1 v/v hexane:acetone and acetone) followed by an acidic demineralization procedure with 1M HCl solution. The results obtained showed that the upgrading treatment allow the recovery of 63-81% of the pyrolysis oils trapped in the crude chars and a reduction in the char's ash content in the range of 64-86%. The textural and adsorption properties of the upgraded chars were evaluated and the results indicate that the chars are mainly mesoporous and macroporous materials, with adsorption capacities in the range of 3.59-22.2 mg/g for the methylene blue dye. The upgrading treatment allowed to obtain carbonaceous materials with quality to be reused as adsorbents or as precursors for activated carbon.
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Affiliation(s)
- M Bernardo
- Unidade de Biotecnologia Ambiental, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
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Bernardo M, Gonçalves M, Lapa N, Barbosa R, Mendes B, Pinto F. Characterization of chars produced in the co-pyrolysis of different wastes: decontamination study. J Hazard Mater 2012; 207-208:28-35. [PMID: 21899951 DOI: 10.1016/j.jhazmat.2011.07.115] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Revised: 06/03/2011] [Accepted: 07/19/2011] [Indexed: 05/31/2023]
Abstract
The present work is devoted to the study of the decontamination of chars obtained in the co-pyrolysis of plastics, biomass and tyre wastes. The chars were extracted with several organic solvents of different polarities either individually or in sequence. The ability of each selected extractant to remove toxic pollutants was evaluated by comparing the extraction yields and by characterizing the crude extracts with a combination of chemical analysis and toxicity bioassays. Also, the mineral composition of the treated and non-treated chars was assessed. The results obtained in this study indicate that hexane is the more efficient extraction solvent to be used in the organic decontamination of chars obtained in the co-pyrolysis of plastics, tyres and biomass. A sequential extraction with solvents of increasing polarity can provide a better decontamination of the raw pyrolysis char than any individual extraction. The compounds removed from the char during the decontamination process are mainly aliphatic hydrocarbons and aromatic hydrocarbons, therefore a material that may be upgraded to be used as a fuel and/or as raw material for the organic chemical industry.
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Affiliation(s)
- M Bernardo
- Unidade de Biotecnologia Ambiental, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
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Pradieé J, Ferreira O, Osório M, Corrêa G, Kessler J, Gonçalves M. Efeito do óleo de arroz na ração sobre a produção e composição química do leite de ovelhas Corriedale. Arch zootec 2012. [DOI: 10.4321/s0004-05922012000100018] [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: 11/11/2022] Open
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Pradieé J, Ferreira OGL, Osório MTM, Corrêa GF, Kessler JD, Gonçalves M. Efeito do óleo de arroz na ração sobre a produção e composição química do leite de ovelhas corriedale. ARCH ZOOTEC 2010. [DOI: 10.21071/az.v61i233.2953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Foi avaliada a influência da adição de óleo de arroz, sobre a produção e a composição química do leite de ovelhas Corriedale multíparas alimentadas com ração comercial sem e com adição de óleo de arroz contendo respectivamente 4,36% e 6,56% de extrato etéreo. A ordenha mecânica foi realizada uma vez por semana, pela manhã. Além da produção de leite foram avaliados: gordura, proteína, lactose e sólidos totais. A produção de leite, bem como dos componentes químicos lactose, proteína, gordura e sólidos totais, não foram influenciadas pelo aumento do extrato etéreo da ração com a adição de óleo de arroz.
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