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Miranda J, Monteiro L, Albuquerque R, Pacheco JJ, Khan Z, Lopez-Lopez J, Warnakulasuryia S. Coffee is protective against oral and pharyngeal cancer: A systematic review and meta-analysis. Med Oral Patol Oral Cir Bucal 2017; 22:e554-e561. [PMID: 28809372 PMCID: PMC5694177 DOI: 10.4317/medoral.21829] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 06/27/2017] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Coffee is one of the most popular and consumable drinks worldwide. However, there are conflicting results on the influence of this drink in oral and pharyngeal cancer risk. To clarify this, we aimed to systemically review and carry out a meta-analysis of the relevant literature on the association between coffee and oral and pharyngeal cancer. STUDY DESIGN We carried out an electronic search of publications up to August 2016 from PubMed, National Library of Medicines Medline, Embase, Science Direct and the Cochrane Central Register. The Newcastle-Ottawa scale was used to address the quality of the studies a meta-analysis was carried out using random-effects models. RESULTS From the 22,515 entries identified in the search, 13 case-control and 4 cohort studies were selected. With regards to quality on the Newcastle-Ottawa scale, an overall value of 6.06 was obtained. The analysis for oral and pharyngeal cancer grouped together indicated a pooled OR of .69 (95% CI of .57-.84; p<.001) for high versus low coffee consumption with a moderate heterogeneity (I2: 50.3%; p=.009). Regarding studies on oral cavity cancers we observed a pooled OR of 0.82; 95% CI =.58-1.16; p=.257) and for pharyngeal cancers a pooled OR of .72 (95% CI of 0.54-.95; p=.019). There was no significant publication bias. CONCLUSION The results show an inverse association between high coffee consumption and the risk of oral and pharyngeal cancers, which indicates that coffee may have a protective role against these cancers. Further larger prospective observational cohort studies are needed to address any effect of other possible co-factors.
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Affiliation(s)
- J Miranda
- Medicine and Oral Surgery Department, and Institute of Research, and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS-N), CESPU, 4585-116 Paredes, Portugal,
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Monteiro LS, Delgado ML, Ricardo S, do Amaral B, Salazar F, Pacheco JJ, Lopes CA, Bousbaa H, Warnakulasuryia S. Prognostic significance of CD44v6, p63, podoplanin and MMP-9 in oral squamous cell carcinomas. Oral Dis 2016; 22:303-12. [PMID: 26788715 DOI: 10.1111/odi.12442] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 10/31/2015] [Revised: 12/20/2015] [Accepted: 01/11/2016] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To analyse the expression of the CD44v6, p63, podoplanin and MMP-9, and their prognostic significance in patients with oral squamous cell carcinomas (OSCC). MATERIAL AND METHODS Immunohistochemistry technique was performed on 60 OSCC for detection of CD44v6, p63, podoplanin and MMP-9 proteins. Extent and intensity of staining were evaluated in tumour cells and were compared with patients' clinical-pathological characteristics and survival. RESULTS CD44v6 expression was detected at the membrane of tumour cells of 94% cases. Nuclear expression of p63 protein was present in 96.5%. Podoplanin was observed at the membrane of tumour cells of 94% cases. MMP-9 was found in the cytoplasm of tumour cells in 83.7% cases. A high level of expression (67%-89%) in all four proteins was noted. Podoplanin was associated with the expression of MMP-9 (P = 0.010) and both were associated with lymph node metastasis (P = 0.011 and P = 0.018, respectively). Co-expression of podoplanin/MMP-9 was an adverse independent prognostic factor for cancer-specific survival (P = 0.008) and recurrence-free survival (P = 0.042). CONCLUSION Podoplanin and MMP-9 together could contribute to tumour progression and dissemination of OSCC. Their combined overexpression showed an adverse effect on survival, suggesting that they could be regarded as important prognostic biomarkers in OSCC.
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Affiliation(s)
- L S Monteiro
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), IUCS - Instituto Universitário de Ciências da Saúde, Gandra, Portugal.,Medicine and Oral Surgery Department, Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | - M L Delgado
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), IUCS - Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | - S Ricardo
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal
| | - B do Amaral
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), IUCS - Instituto Universitário de Ciências da Saúde, Gandra, Portugal.,Medicine and Oral Surgery Department, Instituto Universitário de Ciências da Saúde, Gandra, Portugal.,Stomatology Department, Hospital de Santo António, Oporto Hospitalar Centre, Porto, Portugal
| | - F Salazar
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), IUCS - Instituto Universitário de Ciências da Saúde, Gandra, Portugal.,Medicine and Oral Surgery Department, Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | - J J Pacheco
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), IUCS - Instituto Universitário de Ciências da Saúde, Gandra, Portugal.,Medicine and Oral Surgery Department, Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | - C A Lopes
- Molecular Pathology and Immunology Department, Institute of Biomedical Sciences Abel Salazar (ICBAS), Porto University, Porto, Portugal
| | - H Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), IUCS - Instituto Universitário de Ciências da Saúde, Gandra, Portugal.,Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Porto, Portugal
| | - S Warnakulasuryia
- Oral Medicine, The WHO Collaborating Centre for Oral Cancer, King's College, London, UK
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