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Pereira D, Costa G, Catarino R, Pina-Vaz T, Silva J. Testicular disorders’ awareness and knowledge among Portuguese high-school students. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03175-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Catarino R, Alves L, Pereira J, Pereira D, Costa G, Cardoso A, Braga I, Freitas R, Correia T, Cerqueira M, Carmo Reis F, Lobo F, Morais A, Silva V, Magalhães S, Prisco R. Neoadjuvant chemotherapy in patients with urothelial bladder cancer. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03227-4] [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: 11/17/2022] Open
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Faria Costa G, Pereira D, Catarino R, Pina-Vaz T, Silva J. Testicular disorders’ awareness and knowledge among Portuguese high-school students. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)01221-0] [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: 11/25/2022] Open
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Catarino R, Alves L, Costa G, Pereira D, Pereira J, Cardoso A, Braga I, Freitas R, Correia T, Cerqueira M, Carmo Reis F, Lobo F, Morais A, Prisco R. Neoadjuvant chemotherapy outcomes in muscle-invasive bladder cancer. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)01229-5] [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: 10/20/2022] Open
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Pereira D, Ferreira C, Catarino R, Correia T, Cardoso A, Reis F, Cerqueira M, Prisco R, Camacho O. Hyperbaric oxygen for radiation-induced cystitis: A long-term follow-up. Actas Urol Esp 2020; 44:561-567. [PMID: 32736899 DOI: 10.1016/j.acuro.2020.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 01/01/2023]
Abstract
INTRODUCTION AND OBJECTIVES Bladder complications may be seen in up to 12% of patients treated with pelvic irradiation. Hyperbaric oxygen therapy (HBOT) is an option for the management of radiation-induced hemorrhagic cystitis (RIHC). The aim of this study was to evaluate the efficacy of HBOT in radiation cystitis and to identify the predictive factors for a successful outcome. MATERIAL AND METHODS We retrospectively reviewed 105 patients diagnosed with RIHC which were treated with HBOT between 2007 and 2016 in our institution. Patients received 100% oxygen in a multiplace hyperbaric chamber at 2.4atm for 80minutes. All patients fulfilled a questionnaire documenting symptom severity pre-HBOT and at the end of the follow-up period. RESULTS After a median of 40 HBOT sessions, there was success rate of 92,4% in the control of hematuria. During our follow-up period (median of 63 months) 24,7% patients presented with recurrence of hematuria. The mean score of the questionnaire-assessed variables: dysuria, urinary frequency and hematuria, was significantly lower after the follow-up period (P<.05). Our data shows that the sooner HBOT is delivered after the first episode of hematuria, better response rates are achieved and lower recurrences concerning hematuria were registered (P<.05). No serious complications were observed. CONCLUSIONS Our results support the safety and long-term benefits of HBOT on RIHC and other distressful bladder symptoms, which represents an expected improvement of quality of life in our patients.
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Catarino R, Schäfer S, Vassilakos P, Petignat P, Arbyn M. Accuracy of combinations of visual inspection using acetic acid or lugol iodine to detect cervical precancer: a meta-analysis. BJOG 2017; 125:545-553. [PMID: 28603909 DOI: 10.1111/1471-0528.14783] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Visual inspection of the cervix with acetic acid (VIA) or with Lugol's iodine (VILI) have been evaluated for cervical cancer screening in developing countries. OBJECTIVES To assess the diagnostic accuracy and clinical utility of visual methods to detect cervical intraepithelial neoplasia grade 2+ (CIN2+) using: (1) VIA alone; (2) VILI alone; (3) co-testing; and (4) VILI as a triage test of a positive VIA result. SEARCH STRATEGY PubMed, EMBASE, and the Cochrane Library were searched up to May 2016. SELECTION CRITERIA All reports on the accuracy of VIA and VILI, or combinations of VIA/VILI, to detect CIN2+ were identified. Histology and colposcopy when no biopsy was taken were used as the reference standard. DATA COLLECTION AND ANALYSIS Selected studies were scored on methodological quality, and sensitivity and specificity were computed. Clinical utility was assessed from the positive predictive value (PPV) and the complement of the negative predictive value (cNPV). MAIN RESULTS We included 23 studies comprising 101 273 women. The pooled sensitivity and specificity of VILI was 88 and 86%, respectively. VILI was more sensitive, but not less specific, compared with VIA (relative sensitivity = 1.11; 95% confidence interval, 95% CI, 1.06-1.16; relative specificity = 0.98; 95% CI 0.95-1.01). Co-testing was hardly more sensitive, but significantly less specific, than VILI alone. VILI to triage VIA-POSITIVE women was not less sensitive, but more specific, compared with VIA alone (relative sensitivity = 0.98, 95% CI 0.96-1.01; relative specificity = 1.04, 95% CI 1.02-1.05). The average PPVs were low (range 11-16%), whereas the cNPV varied between 0.3% (VILI, co-testing) and 0.6% (triage). CONCLUSIONS Although imperfect, VILI alone appeared to be the most useful visual screening strategy. TWEETABLE ABSTRACT VILI alone seems to be the most useful visual screening test for cervical cancer screening.
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Affiliation(s)
- R Catarino
- Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland
| | - S Schäfer
- Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland
| | - P Vassilakos
- Geneva Foundation for Medical Education and Research, Geneva, Switzerland
| | - P Petignat
- Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland
| | - M Arbyn
- Unit of Cancer Epidemiology, Belgian Cancer Centre, Scientific Institute of Public Health, Brussels, Belgium
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Sousa H, Bastos MJ, Ribeiro J, Oliveira S, Breda E, Catarino R, Medeiros R. 5'UTR +24T>C CR2 is not associated with nasopharyngeal carcinoma development in the North Region of Portugal. Oral Dis 2016; 22:280-4. [PMID: 26748973 DOI: 10.1111/odi.12436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 12/29/2015] [Accepted: 01/03/2016] [Indexed: 02/06/2023]
Abstract
OBJECTIVE We have analysed the association of the +24T>C polymorphism (rs3813946) in CR2, the cellular receptor for Epstein-Barr virus (EBV), in the susceptibility for the development of nasopharyngeal carcinoma (NPC). METHODS A retrospective case-control study was developed with peripheral blood samples from 111 individuals with NPC and 608 healthy individuals (controls) from the North region of Portugal. The genotyping analysis was performed by allelic discrimination real-time PCR using a TaqMan(®) SNP Genotyping Assay. RESULTS The genotype distribution was 62.2% TT, 34.2% TC and 3.6% CC for NPC patients; and 65.0%, 30.6% and 4.4%, respectively, for controls. Our study showed no statistical association between the genotype distribution in controls and all types of NPC (P = 0.717); nevertheless, the analysis showed statistically significant differences (P = 0.038) regarding cases with well- or moderately differentiated types of NPC suggesting that +24CC/CT genotypes are associated with increased risk (OR = 4.16; 95% CI 1.28-15.7; P = 0.016). CONCLUSIONS This is the first study in Western populations to characterize the association of the CR2 +24T>C polymorphism in NPC development, and our results suggest that more studies are required to clarify the impact on NPC susceptibility in different populations.
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Affiliation(s)
- H Sousa
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto, Porto, Portugal.,Virology Service, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - M J Bastos
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - J Ribeiro
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - S Oliveira
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - E Breda
- Otorhinolaryngology Service, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - R Catarino
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - R Medeiros
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto, Porto, Portugal.,Virology Service, Portuguese Oncology Institute of Porto, Porto, Portugal.,Abel Salazar Institute for the Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal.,Faculty of Health Sciences of Fernando Pessoa University, CEBIMED, Porto, Portugal.,Research Department, Portuguese League Against Cancer (Liga Portuguesa Contra o Cancro - Núcleo Regional do Norte), Porto, Portugal
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Vassilakos P, Catarino R, Boulvain M, Petignat P. Controversies in the mammography screening programme in Switzerland. Swiss Med Wkly 2014; 144:w13969. [DOI: 10.4414/smw.2014.13969] [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: 11/18/2022] Open
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Soares S, Craveiro R, Catarino R, Breda E, Medeiros R, Bravo I. The role of nt590 P21 gene polymorphism in the susceptibility to nasopharyngeal cancer. Exp Oncol 2014; 36:44-47. [PMID: 24691284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM The purpose of this study was to assess if the P21 nt590 polymorphism is associated with the susceptibility to nasopharyngeal cancer and with the age at diagnosis. MATERIALS AND METHODS We analyzed the frequency of 3'UTR P21 polymorphisms in blood samples from 102 nasopharyngeal cancer patients and 191 controls, with no known oncologic disease, using PCR-RFLP. RESULTS The polymorphism genotype frequencies were 93.2% (CC), 5.2% (CT) and 1.6% (TT) in the control group and 88.2% (CC), 10.8% (CT) and 1.0% (TT) in the cases group. We found no statistically significant association between the different P21 polymorphism genotypes and risk of nasopharyngeal cancer (p = 0.201). However, approximately a four-fold increased risk of undifferentiated nasopharyngeal carcinoma in early stages was observed for P21 T carriers (OR = 3.734; 95% IC 1.289-10.281; p = 0.01). Furthermore, our results indicate that the waiting time for onset of neoplasia in T carriers patients was 12.4 years earlier (56.5 years old), comparing with those carrying CC genotype (68.9 years old). CONCLUSIONS Our findings suggest that the 3'UTR P21 polymorphism may play an important role in the pathogenesis and initiation, but not in the progression, of undifferentiated nasopharyngeal carcinoma. Moreover, the polymorphism seems to contribute to a significantly earlier age at diagnosis.
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Affiliation(s)
- S Soares
- Abel Salazar Institute for the Biomedical Sciences, Porto 4050-313, Portugal
| | - R Craveiro
- Research Center, Portuguese Institute of Oncology, Porto 4200-072, Portugal
| | - R Catarino
- Molecular Oncology Grp., Portuguese Institute of Oncology, Porto 4200-072, Portugal
| | - E Breda
- Otorhinolaryngology Service, Portuguese Institute of Oncology, Porto 4200-072, Portugal
| | - R Medeiros
- Molecular Oncology Grp., Portuguese Institute of Oncology, Porto 4200-072, Portugal
| | - I Bravo
- Research Center, Portuguese Institute of Oncology, Porto 4200-072, Portugal
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Catarino R, Coelho A, Nogueira A, Araújo A, Gomes M, Lopes C, Medeiros R. Cyclin D1 polymorphism in non-small cell lung cancer in a Portuguese population. Cancer Biomark 2013; 12:65-72. [DOI: 10.3233/cbm-130294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- R. Catarino
- Molecular Oncology GRP CI, Portuguese Institute of Oncology, Porto, Portugal
| | - A. Coelho
- Molecular Oncology GRP CI, Portuguese Institute of Oncology, Porto, Portugal
| | - A. Nogueira
- Molecular Oncology GRP CI, Portuguese Institute of Oncology, Porto, Portugal
| | - A. Araújo
- Medical Oncology Department, Portuguese Institute of Oncology, Porto, Portugal
| | - M. Gomes
- Molecular Oncology GRP CI, Portuguese Institute of Oncology, Porto, Portugal
| | - C. Lopes
- Molecular Oncology GRP CI, Portuguese Institute of Oncology, Porto, Portugal
- ICBAS, Abel Salazar Institute for the Biomedical Sciences, Porto, Portugal
| | - R. Medeiros
- Molecular Oncology GRP CI, Portuguese Institute of Oncology, Porto, Portugal
- ICBAS, Abel Salazar Institute for the Biomedical Sciences, Porto, Portugal
- LPCC, Research Department-Portuguese League Against Cancer (NRNorte), Porto, Portugal
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Coelho A, Araujo A, Catarino R, Gomes M, Marques A, Medeiros R. Clinical Significance of Angiopoietin-2 Serum Levels in Non-Small Cell Lung Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32747-2] [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: 11/16/2022] Open
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Faustino I, Catarino R, Lombo L, Figueiredo T, Carvalho L, Salgado L, Sousa S, Couto R, Afonso N, Pereira D. 8014 POSTER Adenocarcinoma and Squamous Cell Carcinoma of the Cervix: Should They Be Treated Differently? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72102-5] [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: 11/30/2022]
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Gomes M, Coelho A, Araújo A, Catarino R, Medeiros R. 1137 POSTER Is MMP-9 Q279R a Possible Marker of Prognostic in Non Small Cell Lung Cancer? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70780-8] [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: 10/17/2022]
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Assis J, Gomes M, Marques D, Marques I, Catarino R, Pereira D, Medeiros R. 1152 POSTER CYP3A4*1B Polymorphism – a Prognostic Value in Ovarian Cancer? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70795-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Silva IH, Nogueira-Silva C, Figueiredo T, Lombo L, Faustino I, Catarino R, Nogueira A, Pereira D, Medeiros R. 8037 POSTER Linking XRCC1 Arg399Gln and GGH -401 C>T Polymorphisms to Cervical Cancer Risk. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72125-6] [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: 10/17/2022]
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Sousa H, Santos A, Breda E, Catarino R, Pinto D, Moutinho J, Medeiros R. 105 Role of IL-1RN VNTR polymorphism in host immune susceptibility to viral associated neoplasias. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)70913-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Nogueira A, Catarino R, Pereira D, Coelho A, Medeiros R. 766 Is there a role for RAD51 genetic variants in cervical cancer development? EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71562-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Gomes M, Coelho A, Araujo A, Catarino R, Nogal A, Teixeira A, Medeiros R. 1098 Influence of IL-4 −590C/T polymorphism in Non-Small Cell Lung Cancer (NSCLC) susceptibility. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)70391-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Catarino R, Coelho A, Araújo A, Nogal A, Gomes M, Nogueira A, Medeiros R. 9060 Cyclin D1 and Non-Small cell lung cancer – a role of CCND1 gene variants in lung carcinogenesis. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71773-2] [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: 10/20/2022] Open
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Sousa H, Breda E, Catarino R, Pinto D, Canedo P, Machado J, Medeiros R. 341 POSTER –308G>A TNF-alpha polymorphism is a genetic susceptibility marker for nasopharyngeal carcinoma development. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70359-2] [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: 11/24/2022] Open
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Rodrigues C, Pinto D, Catarino R, Pereira D, Moutinho J, Medeiros R. 351 POSTER Genetic background and cervical development: the influence of cytochromes P450IID6 genotypes. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70369-5] [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: 11/28/2022] Open
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Craveiro R, Pinto D, Bravo I, Catarino R, Pereira D, Matos A, Pereira H, Medeiros R. 331 POSTER TP73 polymorphism in cervical cancer. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70349-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Nogal A, Coelho A, Araújo A, Catarino R, Medeiros R. 6536 POSTER CYP3A5 polymorphism and NSCLC – a role for genetic variation as a protective factor in lung cancer susceptibility. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71364-2] [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: 11/25/2022] Open
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Pereira C, Pinto D, Catarino R, Nogal A, Pereira D, Sousa B, Medeiros R. 5011 ORAL COX-2 polymorphism and susceptibility to gynaecological malignancies: –765C allele confers increased risk for ovarian cancer. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71183-7] [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] Open
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Ferreira M, Catarino R, Sousa A, Rodrigues H, Medeiros R. 2000 ORAL Quantification of free circulating tumor DNA in plasma as a diagnostic marker for breast cancer. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70762-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Araújo A, Araújo A, Teixeira A, Coelho A, Ribeiro R, Azevedo I, Catarino R, Pinto D, Soares M, Medeiros R. 6541 POSTER Genetic polymorphism of the epidermal growth factor gene – value for the treatment of non-small cell lung cancer (NSCLC). EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71369-1] [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: 11/15/2022] Open
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Nogal A, Coelho A, Araújo A, Azevedo I, Faria A, Soares M, Catarino R, Medeiros R. CYP3A5*3 genotypes and advanced non-small cell lung cancer development. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.21030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
21030 Background: Lung cancer is the most common cancer in Europe (381.500 new cases in 2004) and the third in the U.S.A (172.570 new cases in 2005). Smoking is one of the major causes of lung cancer: there are many procarcinogens present in tobacco smoke that, when activated, contribute to the development of this disease. The CYP3A subfamily represents a group of enzymes responsible for the metabolism of many currently used drugs, exogenous carcinogens and endogenous molecules such as steroids. Two of the major enzymes in this family, CYP3A4 and CYP3A5, activate polycyclic aromatic hydrocarbons such as benzo[a]pyrene and other procarcinogens present in tobacco smoke. Functional polymorphisms, such as CYP3A5*3 (associated with the lack of the CYP3A5 protein), could alter individual susceptibility to lung cancer. The aim of our study was to evaluate the influence of this polymorphism in the development of lung cancer. Methods: DNA samples were extracted from peripheral blood cells of 203 patients with non small cell lung cancer, including 42 non- smokers and 156 smokers or former smokers (no data available for the other 5 patients) and 162 blood donors. The CYP3A5*3 polymorphism was analysed through PCR-RFLP (SspI). Analysis of data was performed using the computer software SPSS for windows. The odds ratio (OR) and its 95% confidence interval (CI) were calculated as a measure of the association between CYP3A5*3 genotypes and NSCLC progression. Results: We found significant statistical differences between the control group and the patients with advanced stages (III and IV) of epidermoid and undifferentiated NSCLC (p=0.04; OR = 0.48; 95% CI = 0.232–0.977). Conclusions: Individual differences in the metabolism of carcinogens may influence the susceptibility to cancer development and behaviour. Our preliminary results suggest that the carriers CYP3A5*3 polymorphism are at lower risk of developing advanced lung cancer. This is probably due to a decreased activation of procarcinogens present in tobacco smoke in result of the lack of CYP3A5 caused by the CYP3A5*3 polymorphism. This is consistent with the hypothesis of a cumulative effect of carcinogens on the aggressive behaviour of the disease. No significant financial relationships to disclose.
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Affiliation(s)
- A. Nogal
- Instituto Português de Oncologia, Porto, Portugal
| | - A. Coelho
- Instituto Português de Oncologia, Porto, Portugal
| | - A. Araújo
- Instituto Português de Oncologia, Porto, Portugal
| | - I. Azevedo
- Instituto Português de Oncologia, Porto, Portugal
| | - A. Faria
- Instituto Português de Oncologia, Porto, Portugal
| | - M. Soares
- Instituto Português de Oncologia, Porto, Portugal
| | - R. Catarino
- Instituto Português de Oncologia, Porto, Portugal
| | - R. Medeiros
- Instituto Português de Oncologia, Porto, Portugal
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Coelho AP, Nogal A, Pereira D, Matos A, Sousa B, Araújo A, Catarino R, Medeiros R. Role of -2518 MCP-1 polymorphism in cervical cancer development. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.5594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
5594 Background: Cervical cancer (ICC) and squamous intraepitelial lesions of the cervix uteri (SIL) constitute serious health problems to women worldwide. ICC occupies the second place in the list of tumours afflicting women. Around 470,000 new cases are diagnosed annually, 80% of which in less developed countries and near half of them resulting in death of the women. MCP-1 chemokine is the main determinant of tumour associated macrophages (TAM) content in the squamous cell carcinoma of the uterine cervix. The aim of our study was the evaluation of the association between the -2518 MCP-1 polymorphism (a biallelic G/A functional polymorphism) and susceptibility to cervical intraepithelial lesions and cervical cancer development. Methods: We analyzed 898 samples of DNA, of which 420 corresponded to healthy women (control group), 130 to women with low and high-grade cervical intraepithelial lesions and 348 to women with cervical cancer. The analysis of the polymorphism and the evaluation of the corresponding genotypes were performed with the PCR-RFLP methodology. Analysis of data was performed using the computer software SPSS for windows. Results: The analysis of the genotipic frequencies of the -2518 MCP-1 genotypes indicates that women carrying genotypes with the G allele present a 29.2% protection for the development of intraepithelial lesions of the cervix uteri (OR=0.708; 95% CI: 0.503–0.998; P=0.048) and a 33.5% protection for the development of squamous cell carcinoma of the cervix uteri. It was also possible to observe an association between the waiting time to onset of cervical cancer and the polymorphism: 59 years for women carrying genotypes with the G allele (95% CI: 56–61years) and 53 years for women with the AA genotype (95% CI: 52–57 years; P=0.005). Also, women with genotypes carrying the G allele present a 2.5 fold higher risk for the progression from early stages of invasive cervical carcinoma (I/II) to clinically more advanced stages (III/IV) (OR=2.26; 95% CI: 1.09–4.67; P=0.026). Conclusions: These findings suggest a role of the -2518 MCP-1 polymorphism in the molecular mechanisms that lead to cervical cancer development and progression. No significant financial relationships to disclose.
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Affiliation(s)
- A. P. Coelho
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
| | - A. Nogal
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
| | - D. Pereira
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
| | - A. Matos
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
| | - B. Sousa
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
| | - A. Araújo
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
| | - R. Catarino
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
| | - R. Medeiros
- Portuguese Institute of Oncology, Porto, Portugal; Militar Hospital, Porto, Portugal
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Costa F, Marques A, Catarino R, Basso S, Estevão A, Barata F. 30. Biópsia transtorácica guiada por tac: estudo de 102 biópsias. Revista Portuguesa de Pneumologia 2003. [DOI: 10.1016/s0873-2159(15)30733-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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30
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Carvalho F, Remião F, Soares ME, Catarino R, Queiroz G, Bastos ML. d-Amphetamine-induced hepatotoxicity: possible contribution of catecholamines and hyperthermia to the effect studied in isolated rat hepatocytes. Arch Toxicol 1997; 71:429-36. [PMID: 9209688 DOI: 10.1007/s002040050407] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Amphetamines are indirect-acting sympathomimetic drugs widely abused due to their physical and psychostimulating effects. However, the use of these drugs has been associated with numerous reports of hepatotoxicity. While glutathione depletion induced by amphetamines contributes to the exposure of hepatocytes to oxidative damage, other indirect effects attributed to amphetamines may have a role in cell injury. To examine this possibility, Wistar rats were used for plasma measurements of d-amphetamine and catecholamines (noradrenaline, adrenaline and dopamine) (15 min) after i.p. injection of d-amphetamine (5, 20 and 80 mg/kg). Freshly isolated rat hepatocytes were put into contact for 2 h with concentrations of d-amphetamine and catecholamines similar to those found in vivo. Since hyperthermia is a common consequence of acute amphetamine intake, the study using isolated hepatocytes was conducted at 37 degrees C and also at 41 degrees C in order to simulate high temperature levels. We found that hyperthermia was an important cause of cell toxicity: in vitro, a rise in incubation temperature from 37 to 41 degrees C causes oxidative stress in freshly isolated rat hepatocytes, as shown by a depletion of reduced glutathione (GSH; 23%), an increase of oxidized glutathione (GSSG; 157%), the induction of lipid peroxidation with 77% increase of thiobarbituric acid substances TBARS) and the consequent loss of cell viability (< or = 44%). Single treatment of isolated hepatocytes with catecholamines at 37 degrees C induced lipid peroxidation (29% increase of TBARS) but had no effect on glutathione or cell viability. Conversely, a single treatment with d-amphetamine induced glutathione depletion (< or = 24% depletion of GSH) with no effect on lipid peroxidation or cell viability. Also, d-amphetamine potentiated the induction by catecholamines of lipid peroxidation at 37 degrees C (< or = 48% increase of TBARS), while concomitant treatment of d-amphetamine and catecholamines potentiated cell death at 41 degrees C (< or = 56% of cell death) although no effect on viability was seen at 37 degrees C. It is concluded that the aforementioned modifications induced by d-amphetamine in vivo are cytotoxic to freshly isolated rat hepatocytes.
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Affiliation(s)
- F Carvalho
- CEQUP, Toxicology Department, Faculty of Pharmacy, Porto University, Portugal
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