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Liu F, Tang SJ, Li ZW, Liu XR, Lv Q, Zhang W, Peng D. Poor oral health was associated with higher risk of gastric cancer: Evidence from 1431677 participants. World J Gastrointest Surg 2024; 16:585-595. [PMID: 38463366 PMCID: PMC10921211 DOI: 10.4240/wjgs.v16.i2.585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/26/2023] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND In recent years, the association between oral health and the risk of gastric cancer (GC) has gradually attracted increased interest. However, in terms of GC incidence, the association between oral health and GC incidence remains controversial. Periodontitis is reported to increase the risk of GC. However, some studies have shown that periodontitis has no effect on the risk of GC. Therefore, the present study aimed to assess whether there is a relationship between oral health and the risk of GC. AIM To assess whether there was a relationship between oral health and the risk of GC. METHODS Five databases were searched to find eligible studies from inception to April 10, 2023. Newcastle-Ottawa Scale score was used to assess the quality of included studies. The quality of cohort studies and case-control studies were evaluated separately in this study. Incidence of GC were described by odds ratio (OR) and 95% confidence interval (CI). Funnel plot was used to represent the publication bias of included studies. We performed the data analysis by StataSE 16. RESULTS A total of 1431677 patients from twelve included studies were enrolled for data analysis in this study. According to our analysis, we found that the poor oral health was associated with higher risk of GC (OR = 1.15, 95%CI: 1.02-1.29; I2 = 59.47%, P = 0.00 < 0.01). Moreover, after subgroup analysis, the outcomes showed that whether tooth loss (OR = 1.12, 95%CI: 0.94-1.29; I2 = 6.01%, P > 0.01), gingivitis (OR = 1.19, 95%CI: 0.71-1.67; I2 = 0.00%, P > 0.01), dentures (OR = 1.27, 95%CI: 0.63-1.19; I2 = 68.79%, P > 0.01), or tooth brushing (OR = 1.25, 95%CI: 0.78-1.71; I2 = 88.87%, P > 0.01) had no influence on the risk of GC. However, patients with periodontitis (OR = 1.13, 95%CI: 1.04-1.23; I2 = 0.00%, P < 0.01) had a higher risk of GC. CONCLUSION Patients with poor oral health, especially periodontitis, had a higher risk of GC. Patients should be concerned about their oral health. Improving oral health might reduce the risk of GC.
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Affiliation(s)
- Fei Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shi-Jun Tang
- Department of Pediatric Dentistry, Stomatological Hospital of Guizhou Medical University, Guizhou 550000, Guizhou Province, China
| | - Zi-Wei Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xu-Rui Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Quan Lv
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Wei Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Dong Peng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Ma S, Liu H, Sun C, Meng M, Qu G, Jiang Y, Wu B, Gao J, Feng L, Xie P, Xia W, Sun Y. Effect of physical activity on incidence and mortality in patients with gastric cancer: evidence from real-world studies. Cancer Causes Control 2023; 34:1095-1111. [PMID: 37491662 DOI: 10.1007/s10552-023-01763-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 07/17/2023] [Indexed: 07/27/2023]
Abstract
PURPOSE Physical activity (PA) has been suggested to reduce the risk of cancer. However, previous studies have been inconsistent regarding the relationship between PA and the risk of developing gastric cancer (GC). The purpose of this study was to evaluate the impact of PA on the incidence and mortality risk of GC through a meta-analysis, as well as investigate potential dose-response relationships. METHODS A systematic literature search was conducted in 10 electronic databases and 4 registries. The combined relative risks (RRs) were calculated using a random-effects model with 95% confidence interval (CIs) to assess the effect of PA on the risk of GC. Relevant subgroup analyses and sensitivity analyses were performed. RESULTS The results showed that PA correlated with lower incidence of GC (RR: 0.83, 95% CI: 0.77-0.90), decreased risk of GC mortality (RR: 0.76, 95% CI: 0.66-0.89). The results of the subgroup analysis showed that PA was associated with reduced incidence of GC across gender, different regions, study designs, different sites of GC and different types of PA. A linear relationship was found for frequency of PA. CONCLUSIONS This meta-analysis found that PA was associated with a reduced risk of GC incidence and mortality. The correlation between PA and GC occurrence was in a dose-response relationship.
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Affiliation(s)
- Shaodi Ma
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Haixia Liu
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Chenyu Sun
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Hefei, 230032, Anhui, P.R. China
| | - Muzi Meng
- UK Program Site, American University of the Caribbean School of Medicine, Vernon Building Room 64, Sizer St, Preston, PR1 1JQ, UK
- Bronxcare Health System, 1650 Grand Concourse, The Bronx, NY, 10457, USA
| | - Guangbo Qu
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Yuemeng Jiang
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University North District, No. 100 Huaihai Dadao, Hefei, 230032, Anhui, P.R. China
- Anhui Public Health Clinical Center, No. 100 Huaihai Dadao, Hefei, 230032, Anhui, P.R. China
| | - Birong Wu
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Juan Gao
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Linya Feng
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Peng Xie
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Weihang Xia
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China
| | - Yehuan Sun
- Department of Epidemiology and Health Statistics, School of Public Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, P.R. China.
- Chaohu Hospital, Anhui Medical University, No. 64 Chaohubei Road, Hefei, 238000, Anhui, China.
- Center for Evidence-Based Practice, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China.
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Nicolae FM, Bennardo F, Barone S, Șurlin P, Gheorghe DN, Burtea D, Pătrascu Ș, Râmboiu S, Radu AP, Ungureanu BS, Turcu-Știolica A, Didilescu AC, Strâmbu VDE, Șurlin VM, Gheonea DI. The Need for Oral Hygiene Care and Periodontal Status among Hospitalized Gastric Cancer Patients. J Pers Med 2022; 12:684. [PMID: 35629110 PMCID: PMC9147473 DOI: 10.3390/jpm12050684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/14/2022] [Accepted: 04/22/2022] [Indexed: 11/16/2022] Open
Abstract
Poor oral hygiene leads to the accumulation of dental plaque, thus contributing to the initiation of periodontal disease (PD). Local infections can lead to systemic inflammatory responses, which are essential mediators for the evolution of systemic conditions or cancer tumorigenesis. Often, patients hospitalized with life-threatening and incapacitating disorders such as gastric cancer (GC) might lose interest in keeping their mouth healthy. This study evaluates oral hygiene, periodontal status, and the need for oral care and medical personnel to assist in achieving it in patients hospitalized with GC. This study was carried out on 25 patients with a diagnosis of GC, divided into two groups (GP-14 patients from the Gastroenterology Department, and SP-11 patients from the 1st Department of Surgery). Patients were examined on the day of admission (T0), the day of the medical procedure of endoscopy or surgery (T1), and the day of discharge (T2), recording the number of absent teeth, dental plaque (PI), bleeding on probing (BOP), probing depths (PPD), frequency of toothbrushing, and if the oral hygiene had been self-performed or assisted. Data were subjected to statistical analysis. Our results showed that, in both the GP and the SP group, there were strong and statistically significant correlations between PI and BOP measured on the last day of hospitalization and the period of hospitalization after the medical procedure. Longer hospital stays and the presence of surgery were risk factors for changing toothbrushing frequency. Results also highlight the need for a dentist to diagnose and eventually treat periodontal disease before and after hospitalization, and for a trained nurse who should help take care of the patient's oral hygiene during hospitalization.
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Affiliation(s)
- Flavia Mirela Nicolae
- Department of Periodontology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (F.M.N.); (D.N.G.)
| | - Francesco Bennardo
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy; or
| | - Selene Barone
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy; or
| | - Petra Șurlin
- Department of Periodontology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (F.M.N.); (D.N.G.)
| | - Dorin Nicolae Gheorghe
- Department of Periodontology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (F.M.N.); (D.N.G.)
| | - Daniela Burtea
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (D.B.); (B.S.U.); (D.I.G.)
| | - Ștefan Pătrascu
- Department 1st of Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (Ș.P.); (S.R.); (V.M.Ș.)
| | - Sandu Râmboiu
- Department 1st of Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (Ș.P.); (S.R.); (V.M.Ș.)
| | - Adrian Petru Radu
- Department of Surgery, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.P.R.); (V.D.E.S.)
| | - Bogdan Silviu Ungureanu
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (D.B.); (B.S.U.); (D.I.G.)
| | - Adina Turcu-Știolica
- Department of Pharmacoeconomics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | | | - Victor Dan Eugen Strâmbu
- Department of Surgery, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.P.R.); (V.D.E.S.)
| | - Valeriu Marin Șurlin
- Department 1st of Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (Ș.P.); (S.R.); (V.M.Ș.)
| | - Dan Ionuț Gheonea
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (D.B.); (B.S.U.); (D.I.G.)
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Subgingival Periopathogens Assessment and Clinical Periodontal Evaluation of Gastric Cancer Patients—A Cross Sectional Pilot Study. Pathogens 2022; 11:pathogens11030360. [PMID: 35335684 PMCID: PMC8949055 DOI: 10.3390/pathogens11030360] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/07/2022] [Accepted: 03/12/2022] [Indexed: 12/24/2022] Open
Abstract
Oral microbiota have shown a higher bacterial diversity in patients with cancers of the digestive tract, with higher levels of periopathogens. Recent studies have shown that Fusobacterium links to gastro-intestinal neoplastic tissue and accelerates its progression, as well as worsening patient outcome. The present pilot study was carried out between February and December 2020 to evaluate the possible association between the abundance of some periopathogens (Fusobacterium nucleatum, Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Treponema denticola and Tannerella forsythia) in subgingival plaque and periodontal status with characteristics of gastric cancer. The study was performed on a sample of 24 patients with gastric cancer from the 1st Department of Surgery and Department of Gastroenterology within the Clinical County Hospital of Emergency of Craiova, Romania. The patients’ oral cavity was examined, gingival crevicular samples were collected, and signs of periodontal disease were recorded. On the histopathological exam, the differentiation grade and size of the tumour were registered. Our results showed that, from the periopathogens studied, the most abundant bacteria were F. nucleatum followed by T. forsythia in all groups. In our present study, the strong correlation between tumour dimension and all periodontal parameters but also between tumour dimension and F. nucleatum could suggest a positive association between periodontal disease, tumoral growth and periopathogens implication in this process.
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Sharifi-Rad J, Quispe C, Butnariu M, Rotariu LS, Sytar O, Sestito S, Rapposelli S, Akram M, Iqbal M, Krishna A, Kumar NVA, Braga SS, Cardoso SM, Jafernik K, Ekiert H, Cruz-Martins N, Szopa A, Villagran M, Mardones L, Martorell M, Docea AO, Calina D. Chitosan nanoparticles as a promising tool in nanomedicine with particular emphasis on oncological treatment. Cancer Cell Int 2021; 21:318. [PMID: 34167552 PMCID: PMC8223345 DOI: 10.1186/s12935-021-02025-4] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
The study describes the current state of knowledge on nanotechnology and its utilization in medicine. The focus in this manuscript was on the properties, usage safety, and potentially valuable applications of chitosan-based nanomaterials. Chitosan nanoparticles have high importance in nanomedicine, biomedical engineering, discovery and development of new drugs. The manuscript reviewed the new studies regarding the use of chitosan-based nanoparticles for creating new release systems with improved bioavailability, increased specificity and sensitivity, and reduced pharmacological toxicity of drugs. Nowadays, effective cancer treatment is a global problem, and recent advances in nanomedicine are of great importance. Special attention was put on the application of chitosan nanoparticles in developing new system for anticancer drug delivery. Pre-clinical and clinical studies support the use of chitosan-based nanoparticles in nanomedicine. This manuscript overviews the last progresses regarding the utilization, stability, and bioavailability of drug nanoencapsulation with chitosan and their safety.
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Affiliation(s)
- Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Facultad de Medicina, Universidad del Azuay, Cuenca, Ecuador
| | - Cristina Quispe
- Facultad de Ciencias de La Salud, Universidad Arturo Prat, Avda. Arturo Prat 2120, 1110939 Iquique, Chile
| | - Monica Butnariu
- Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” From Timisoara, Calea Aradului 119, 300645 Timis, Romania
| | - Lia Sanda Rotariu
- Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” From Timisoara, Calea Aradului 119, 300645 Timis, Romania
| | - Oksana Sytar
- Department of Plant Biology Department, Institute of Biology, Taras Shevchenko National University of Kyiv, Kyiv, 01033 Ukraine
| | - Simona Sestito
- Department of Plant Physiology, Slovak University of Agriculture, Nitra, 94976 Slovak Republic
- Department of Pharmacy, University of Pisa, Via bonanno 6, 56126 Pisa, Italy
| | - Simona Rapposelli
- Department of Plant Physiology, Slovak University of Agriculture, Nitra, 94976 Slovak Republic
- Department of Pharmacy, University of Pisa, Via bonanno 6, 56126 Pisa, Italy
| | - Muhammad Akram
- Department of Eastern Medicine and Surgery, Directorate of Medical Sciences, GC University Faisalabad, Faisalabad, Pakistan
| | - Mehwish Iqbal
- Institute of Health Management, Dow University of Health Sciences, Karachi, Pakistan
| | - Akash Krishna
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104 India
| | | | - Susana S. Braga
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Susana M. Cardoso
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Karolina Jafernik
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
| | - Halina Ekiert
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
| | - Natália Cruz-Martins
- Faculty of Medicine, University of Porto, Porto, Portugal
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal
- Institute of Research and Advanced Training in Health Sciences and Technologies, Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), 4585-116 Gandra, Portugal
| | - Agnieszka Szopa
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
| | - Marcelo Villagran
- Biomedical Science Research Laboratory and Scientific-Technological Center for the Sustainable Development of the Coastline, Universidad Catolica de La Santisima Concepcion, Concepcion, Chile
| | - Lorena Mardones
- Biomedical Science Research Laboratory and Scientific-Technological Center for the Sustainable Development of the Coastline, Universidad Catolica de La Santisima Concepcion, Concepcion, Chile
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, and Centre for Healthy Living, University of Concepción, 4070386 Concepción, Chile
| | - Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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Huang K, Gao X, Wu L, Yan B, Wang Z, Zhang X, Peng L, Yu J, Sun G, Yang Y. Salivary Microbiota for Gastric Cancer Prediction: An Exploratory Study. Front Cell Infect Microbiol 2021; 11:640309. [PMID: 33777850 PMCID: PMC7988213 DOI: 10.3389/fcimb.2021.640309] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/03/2021] [Indexed: 12/24/2022] Open
Abstract
To characterize the salivary microbiota in patients at different progressive histological stages of gastric carcinogenesis and identify microbial markers for detecting gastric cancer, two hundred and ninety-three patients were grouped into superficial gastritis (SG; n = 101), atrophic gastritis (AG; n = 93), and gastric cancer (GC; n = 99) according to their histology. 16S rRNA gene sequencing was used to access the salivary microbiota profile. A random forest model was constructed to classify gastric histological types based on the salivary microbiota compositions. A distinct salivary microbiota was observed in patients with GC when comparing with SG and AG, which was featured by an enrichment of putative proinflammatory taxa including Corynebacterium and Streptococcus. Among the significantly decreased oral bacteria in GC patients including Haemophilus, Neisseria, Parvimonas, Peptostreptococcus, Porphyromonas, and Prevotella, Haemophilus, and Neisseria are known to reduce nitrite, which may consequently result in an accumulation of carcinogenic N-nitroso compounds. We found that GC can be distinguished accurately from patients with AG and SG (AUC = 0.91) by the random forest model based on the salivary microbiota profiles, and taxa belonging to unclassified Streptophyta and Streptococcus have potential as diagnostic biomarkers for GC. Remarkable changes in the salivary microbiota functions were also detected across three histological types, and the upregulation in the isoleucine and valine is in line with a higher level of these amino acids in the gastric tumor tissues that reported by other independent studies. Conclusively, bacteria in the oral cavity may contribute gastric cancer and become new diagnostic biomarkers for GC, but further evaluation against independent clinical cohorts is required. The potential mechanisms of salivary microbiota in participating the pathogenesis of GC may include an accumulation of proinflammatory bacteria and a decline in those reducing carcinogenic N-nitroso compounds.
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Affiliation(s)
- Kun Huang
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China.,Department of Gastroenterology, Civil Aviation General Hospital, Beijing, China
| | - Xuefeng Gao
- Central Laboratory, Shenzhen Key Laboratory of Precision Medicine for Hematological Malignancies, Shenzhen University General Hospital, Shenzhen, China
| | - Lili Wu
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Bin Yan
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China
| | - Zikai Wang
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China
| | - Xiaomei Zhang
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China
| | - Lihua Peng
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China
| | - Jiufei Yu
- Department of Gastroenterology, Civil Aviation General Hospital, Beijing, China
| | - Gang Sun
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China
| | - Yunsheng Yang
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China
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Nwizu N, Wactawski-Wende J, Genco RJ. Periodontal disease and cancer: Epidemiologic studies and possible mechanisms. Periodontol 2000 2020; 83:213-233. [PMID: 32385885 PMCID: PMC7328760 DOI: 10.1111/prd.12329] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Epidemiologic and cancer control studies on the association of periodontal disease and cancer risk mostly suggest a positive association with overall cancer risk and certain specific types of cancer. These findings are generally consistent among cross‐sectional and longitudinal studies. In this paper, we review epidemiologic studies and current knowledge on periodontal disease and cancer, with a focus on those studies conducted in the years following the Joint European Federation of Periodontology/American Academy of Periodontology Workshop on “Periodontitis and Systemic Diseases” in November 2012. This review also explores the role of chronic inflammation as a biologically plausible mechanistic link between periodontal disease and risk of cancer. Furthermore, it highlights studies that have examined the potential importance of certain periodontal pathogens in this association.
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Affiliation(s)
- Ngozi Nwizu
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, USA.,School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, USA.,Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, USA
| | - Jean Wactawski-Wende
- School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, USA
| | - Robert J Genco
- Department of Oral Biology, University at Buffalo, The State University of New York, Buffalo, USA
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Sakai H, Yamada SI, Gibo T, Yoshimura N, Nishimaki F, Kondo E, Kamata T, Kurita H. A retrospective analysis of the prevalence of dental diseases in patients with digestive system cancers. Medicine (Baltimore) 2019; 98:e14771. [PMID: 30921181 PMCID: PMC6455988 DOI: 10.1097/md.0000000000014771] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The relationship between dental diseases and the prevalence of digestive system cancers remains unclear. The aim of the present study was to examine the prevalence of dental diseases in patients treated for digestive system cancers.The medical and dental records of patients treated for digestive system cancers were retrospectively reviewed, and the results obtained (decayed/filled/missing teeth [DMFT] indices and community periodontal index [CPI] codes) were compared with data from the national survey of dental diseases in order to investigate the relationship between oral health and digestive system cancers.DMFT, D, and F indices were significantly lower, while the M index was slightly higher in digestive system cancer patients than in the national survey. The proportions of individuals with more than 20 residual teeth and denture wearers were significantly lower in cancer patients than in the national survey. The prevalence of periodontitis (CPI codes 3 and 4) and severe periodontitis (CPI code 4) were significantly higher in cancer patients than in the national survey.The present results showed that digestive system cancers were closely associated with multi-tooth loss and/or a low denture-wearing rate. The prevalence of severe periodontitis was also found to be higher in cancer patients. These results suggest that periodontitis and associated multi-tooth loss play a potential role in digestive system cancers.
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Chou SH, Tung YC, Wu LS, Chang CJ, Kung S, Chu PH. Severity of chronic periodontitis and risk of gastrointestinal cancers: A population-based follow-up study from Taiwan. Medicine (Baltimore) 2018; 97:e11386. [PMID: 29979428 PMCID: PMC6076176 DOI: 10.1097/md.0000000000011386] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 06/11/2018] [Indexed: 01/10/2023] Open
Abstract
The present study aimed to assess the association between the severity of chronic periodontitis and the risk of gastrointestinal (GI) cancers by investigating whether severe chronic periodontitis (CP), rather than mild CP, correlates with an increased risk of total or individual GI cancers.Adults (≥18 years) with mild and severe CP were identified from a random sample of 2 million insured patients in the National Health Insurance Research Database (2001-2010). After propensity score matching, 25,485 individuals, each with mild or severe CP, were included for comparison. The primary endpoint was the incidence of total or individual GI cancers, including cancers of the esophagus, stomach, small intestine, colon/rectum, and pancreas. Cox proportional hazard models with the robust aggregated sandwich estimator were used to calculate hazard ratios (HRs) and 95% confidence intervals (95% CIs) after adjusting for known risk factors.GI cancers occurred in 275 individuals with mild CP and 324 individuals with severe CP. After adjusting for known risk factors, severe CP was not associated with an increased risk of total GI cancer relative to mild CP (HR: 0.99, 95% CI: 0.84-1.16) or individual GI cancers, including esophageal (HR: 1.15, 95% CI: 0.62-2.15), gastric (HR: 1.01, 95% CI: 0.68-1.49), small intestinal (HR: 0.70, 95% CI: 0.22-2.22), colorectal (HR: 0.95, 95% CI: 0.78-1.16), and pancreatic cancers (HR: 0.90, 95% CI: 0.47-1.75).Severe CP was not associated with an increased risk of total or individual GI cancers when compared with mild CP.
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Affiliation(s)
- Shing-Hsien Chou
- Department of Cardiology
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University
| | | | | | - Chee-Jen Chang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University
| | - Suefang Kung
- Section of Periodontics, Department of Dentistry, Chang Gung Memorial Hospital, Taoyuan
- Cheers Dental Clinic, New Taipei, Taiwan
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10
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Gao SG, Yang JQ, Ma ZK, Yuan X, Zhao C, Wang GC, Wei H, Feng XS, Qi YJ. Preoperative serum immunoglobulin G and A antibodies to Porphyromonas gingivalis are potential serum biomarkers for the diagnosis and prognosis of esophageal squamous cell carcinoma. BMC Cancer 2018; 18:17. [PMID: 29298684 PMCID: PMC5753462 DOI: 10.1186/s12885-017-3905-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 12/11/2017] [Indexed: 02/06/2023] Open
Abstract
Background The key-stone-pathogen, Porphyromonas gingivalis associates not only with periodontal diseases but with a variety of other chronic diseases such as cancer. We previously reported an association between the presence of Porphyromonas gingivalis in esophageal squamous cell carcinoma (ESCC) and its progression. We now report the diagnostic and prognostic potential of serum immunoglobulin G and A antibodies (IgG/A) against Porphyromonas gingivalis for ESCC. Methods An enzyme-linked immunosorbent assay (ELISA) was used to determine the serum levels of Porphyromonas gingivalis IgG and IgA in 96 cases with ESCC, 50 cases with esophagitis and 80 healthy controls. Results The median serum levels of IgG and IgA for P. gingivalis were significantly higher in ESCC patients than non-ESCC controls. P. gingivalis IgG and IgA in serum demonstrated sensitivities/specificities of 29.17%/96.90% and 52.10%/70.81%, respectively, and combination of IgG and IgA produced a sensitivity/specificity of 68.75%/68.46%. The diagnostic performance of serum P. gingivalis IgA for early ESCC was superior to that of IgG (54.54% vs. 20.45%). Furthermore, high serum levels of P. gingivalis IgG or IgA were associated with worse prognosis of ESCC patients, in particular for patients with stage 0-IIor negative lymphnode metastasis, and ESCC patients with high levels of both IgG and IgA had the worst prognosis. Multivariate analysis revealed that lymph node status, IgG and IgA were independent prognostic factors. Conclusions The IgG and IgA for P. gingivalis are potential serum biomarkers for ESCC and combination of IgG and IgA improves the diagnostic and prognostic performance. Furthermore, serum P. gingivalis IgG and IgA can detect early stage ESCC. Electronic supplementary material The online version of this article (10.1186/s12885-017-3905-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- She-Gan Gao
- Henan Key Laboratory of Cancer Epigenetics; Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, Henan, 471003, People's Republic of China
| | - Jun-Qiang Yang
- Henan Key Laboratory of Cancer Epigenetics; Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, Henan, 471003, People's Republic of China
| | - Zhi-Kun Ma
- Henan Key Laboratory of Cancer Epigenetics; Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, Henan, 471003, People's Republic of China
| | - Xiang Yuan
- Henan Key Laboratory of Cancer Epigenetics; Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, Henan, 471003, People's Republic of China
| | - Chen Zhao
- Henan Key Laboratory of Cancer Epigenetics; Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, Henan, 471003, People's Republic of China
| | - Guang-Chao Wang
- Department of Oral Mucosal Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China
| | - Hua Wei
- Huaihe Hospital, Henan University, Kaifeng, Henan, 475004, People's Republic of China
| | - Xiao-Shan Feng
- Henan Key Laboratory of Cancer Epigenetics; Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, Henan, 471003, People's Republic of China.
| | - Yi-Jun Qi
- Henan Key Laboratory of Cancer Epigenetics; Cancer Hospital, The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, Henan, 471003, People's Republic of China.
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11
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Milk/dairy products consumption and gastric cancer: an update meta-analysis of epidemiological studies. Oncotarget 2017; 9:7126-7135. [PMID: 29467955 PMCID: PMC5805541 DOI: 10.18632/oncotarget.23496] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 10/12/2017] [Indexed: 12/16/2022] Open
Abstract
The relationship between dairy consumption and gastric cancer risk has not been well studied. We therefore performed a update meta-analysis to evaluate the relationship. Published cohort and case-control studies were identified via computer searches and reviewing the reference lists of the key articles. Random effects meta-analysis was used to pool effects from 5 cohort and 29 case-control studies. The odds ratio for the overall association between dairy consumption and gastric cancer was 1.20 (95%confidence interval: 1.04–1.39). The combined risk estimate was similar for population-based case-control studies (odds ratio = 1.27, 95%confidence interval: 1.00–1.61), but was reduced for hospital-based studies (odds ratio = 1.22; 95%confidence interval: 0.95–1.57) and cohort studies (odds ratio = 0.99; 95%confidence interval: 0.77–1.28). There was high heterogeneity in overall analyses. In the population-based subgroup analyses, the odds ratio was 0.96 (95%confidence interval: 0.69–1.34) when considering five studies assessing exposure two or more years before interview, and the association strengthened (odds ratio = 1.91, 95%confidence interval: 1.60–2.28) when dairy consumption was evaluated one year or less prior to interview. In conclusion, we found adverse effect of dairy consumption associated with gastric cancer.
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Yin XH, Wang YD, Luo H, Zhao K, Huang GL, Luo SY, Peng JX, Song JK. Association between Tooth Loss and Gastric Cancer: A Meta-Analysis of Observational Studies. PLoS One 2016; 11:e0149653. [PMID: 26934048 PMCID: PMC4774992 DOI: 10.1371/journal.pone.0149653] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 02/03/2016] [Indexed: 01/22/2023] Open
Abstract
Observational studies showed that tooth loss is associated with gastric cancer, but the findings are inconsistent. In this study, a meta-analysis was conducted to evaluate the relationship between tooth loss and gastric cancer. Relevant studies were screened in PubMed and Embase databases, and nine observational studies were considered eligible for the analysis. The combined relative risks for the highest versus the lowest categories of tooth loss were 1.86 (95% CI: 1.08–3.21) and 1.31 (95% CI: 1.12–1.53) in case control and cohort studies, respectively. However, unstable results were observed in the stratified and sensitivity analysis. The current evidence, based solely on four case-control studies and five cohort studies, suggested that tooth loss is a potential marker of gastric cancer. However, we can not concluded at this time that tooth loss may be a risk factor for gastric cancer due to significant heterogeneity among studies and mixed results between case-control studies and cohort studies. Additional large-scale and high-quality prospective studies are required to evaluate the association between tooth loss and risk of gastric cancer.
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Affiliation(s)
- Xin-Hai Yin
- Department of Oral and Maxillary Surgery, Gui Zhou Provincial People's hospital, Guiyang, China
| | - Ya-Dong Wang
- Department of Oral and Maxillary Surgery, Gui Zhou Provincial People's hospital, Guiyang, China
| | - Hong Luo
- Department of Oral and Maxillary Surgery, Gui Zhou Provincial People's hospital, Guiyang, China
| | - Ke Zhao
- Department of Oral and Maxillary Surgery, Gui Zhou Provincial People's hospital, Guiyang, China
| | - Guang-Lei Huang
- Department of Oral and Maxillary Surgery, Gui Zhou Provincial People's hospital, Guiyang, China
| | - Si-Yang Luo
- Department of Oral and Maxillary Surgery, Gui Zhou Provincial People's hospital, Guiyang, China
| | - Ju-Xiang Peng
- Department of Orthodontics, Stomatology hospital of Gui yang, Guiyang, China
- * E-mail: (JXP); (JKS)
| | - Ju-Kun Song
- Department of Oral and Maxillary Surgery, Gui Zhou Provincial People's hospital, Guiyang, China
- * E-mail: (JXP); (JKS)
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13
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Chung SD, Tsai MC, Huang CC, Kao LT, Chen CH. A population-based study on the associations between chronic periodontitis and the risk of cancer. Int J Clin Oncol 2015; 21:219-223. [PMID: 26280747 DOI: 10.1007/s10147-015-0884-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 07/28/2015] [Indexed: 01/05/2023]
Abstract
BACKGROUND To date, the associations between chronic periodontitis (CP) and cancer lack large-scale population-based epidemiological evidence. This study aimed to investigate the subsequent risk for cancers among subjects with CP. METHODS This study cohort included 40,140 subjects with CP and 40,140 subjects who were matched for a comparison cohort. We individually tracked each patient for a 5-year period following their index date to identify those who had received a diagnosis of cancer. RESULTS The incidence rate of cancer during the 5-year follow-up period was 14.80 (95 % CI 14.28-15.34) per 1,000 person-years in subjects with CP. Cox proportional hazards regression revealed that the hazard ratio of cancer during the 5-year follow-up period for subjects with CP was 1.23 (95 % CI 1.20-1.27) compared to that of the comparison cohort. CONCLUSION We observed an increased risk for the subsequent development of a number of cancers among subjects with CP.
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Affiliation(s)
- Shiu-Dong Chung
- Division of Urology, Department of Surgery, Far Eastern Memorial Hospital, Ban Ciao, Taipei, Taiwan
| | - Ming-Chieh Tsai
- Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan
| | - Chung-Chien Huang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
| | - Li-Ting Kao
- Graduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan.
| | - Chao-Hung Chen
- Department of Thoracic Surgery, Mackay Memorial Hospital, Taipei, Taiwan.,Mackay Medicine Nursing, and Management College, Taipei, Taiwan
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14
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Rosier BT, De Jager M, Zaura E, Krom BP. Historical and contemporary hypotheses on the development of oral diseases: are we there yet? Front Cell Infect Microbiol 2014; 4:92. [PMID: 25077073 PMCID: PMC4100321 DOI: 10.3389/fcimb.2014.00092] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 06/23/2014] [Indexed: 02/05/2023] Open
Abstract
Dental plaque is an oral biofilm that much like the rest of our microbiome has a role in health and disease. Specifically, it is the cause of very common oral diseases such as caries, gingivitis, and periodontitis. The ideas about oral disease development have evolved over time. In the nineteenth century, scientists could not identify bacteria related to disease due to the lack of technology. This led to the "Non-Specific Plaque Hypothesis" or the idea that the accumulation of dental plaque was responsible for oral disease without discriminating between the levels of virulence of bacteria. In the twentieth century this idea evolved with the techniques to analyze the changes from health to disease. The first common hypothesis was the "Specific Plaque Hypothesis" (1976) proposing that only a few species of the total microflora are actively involved in disease. Secondly, the "Non-Specific Plaque Hypothesis" was updated (1986) and the idea that the overall activity of the total microflora could lead to disease, was enriched by taking into account difference in virulence among bacteria. Then, a hypothesis was considered that combines key concepts of the earlier two hypotheses: the "Ecological Plaque Hypothesis" (1994), which proposes that disease is the result of an imbalance in the microflora by ecological stress resulting in an enrichment of certain disease-related micro-organisms. Finally, the recent "Keystone-Pathogen Hypothesis" (2012) proposes that certain low-abundance microbial pathogens can cause inflammatory disease by interfering with the host immune system and remodeling the microbiota. In this comprehensive review, we describe how these different hypotheses, and the ideas around them, arose and test their current applicability to the understanding of the development of oral disease. Finally, we conclude that an all-encompassing ecological hypothesis explaining the shifts from health to disease is still lacking.
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Affiliation(s)
- Bob T. Rosier
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Free University AmsterdamAmsterdam, Netherlands
| | | | - Egija Zaura
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Free University AmsterdamAmsterdam, Netherlands
| | - Bastiaan P. Krom
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Free University AmsterdamAmsterdam, Netherlands
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15
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Behrens G, Jochem C, Keimling M, Ricci C, Schmid D, Leitzmann MF. The association between physical activity and gastroesophageal cancer: systematic review and meta-analysis. Eur J Epidemiol 2014; 29:151-70. [PMID: 24705782 DOI: 10.1007/s10654-014-9895-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/20/2014] [Indexed: 12/14/2022]
Abstract
Physical activity may decrease gastroesophageal cancer risk through a reduction of oxidative stress and decreased chronic inflammation, yet few epidemiologic studies have been able to report a clear inverse association between physical activity and gastroesophageal cancer. Because no meta-analysis has investigated the relation of physical activity to gastroesophageal cancer, we conducted a comprehensive systematic review and meta-analysis according to the PRISMA guidelines based on 24 studies with a total of 15,745 cases. When we compared high versus low physical activity levels and summarized associations according to anatomic site and tumor histology, risk reductions were evident for esophageal adenocarcinoma [relative risk (RR) = 0.79, 95% confidence interval (CI) = 0.66-0.94], gastric cardia adenocarcinoma (RR = 0.83, 95% CI = 0.69-0.99) and gastric non-cardia adenocarcinoma (RR = 0.72, 95% CI = 0.62-0.84). The risk reduction for esophageal squamous cell carcinoma (RR = 0.94, 95% CI = 0.41-2.16) became statistically significant (RR = 0.66, 95% CI = 0.46-0.96) after excluding an influential study. The test for heterogeneity by gastroesophageal cancer subtype was statistically non-significant (p-difference = 0.71). The RR of total gastroesophageal cancer for high versus low physical activity was 0.82 (95% CI = 0.74-0.90). A dose-response analysis of frequency of physical activity and total gastroesophageal cancer risk revealed that the greatest risk reduction was achieved among those engaging in moderate to vigorous physical activity five times per week (RR = 0.67, 95% CI = 0.58-0.79). Our results provide support for an inverse relation of physical activity, in particular exercise frequency, to gastroesophageal cancer risk.
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Affiliation(s)
- Gundula Behrens
- Department of Epidemiology and Preventive Medicine, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany,
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16
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Yang R, Lin Q, Gao HB, Zhang P. Stress-related hormone norepinephrine induces interleukin-6 expression in GES-1 cells. Braz J Med Biol Res 2014; 47:101-9. [PMID: 24519125 PMCID: PMC4051180 DOI: 10.1590/1414-431x20133346] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 09/25/2013] [Indexed: 11/22/2022] Open
Abstract
In the current literature, there is evidence that psychological factors can affect the incidence and progression of some cancers. Interleukin 6 (IL-6) is known to be elevated in individuals experiencing chronic stress and is also involved in oncogenesis and cancer progression. However, the precise mechanism of IL-6 induction by the stress-related hormone norepinephrine (NE) is not clear, and, furthermore, there are no reports about the effect of NE on IL-6 expression in gastric epithelial cells. In this study, we examined the effect of NE on IL-6 expression in immortalized human gastric epithelial cells (GES-1 cells). Using real-time PCR and enzyme-linked immunoassay, we demonstrated that NE can induce IL-6 mRNA and protein expression in GES-1 cells. The induction is through the β-adrenergic receptor-cAMP-protein kinase A pathway and mainly at the transcriptional level. Progressive 5'-deletions and site-directed mutagenesis of the parental construct show that, although activating-protein-1 (AP-1), cAMP-responsive element binding protein (CREB), CCAAT-enhancer binding protein-β (C/EBP-β), and nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) binding sites are all required in the basal transcription of IL-6, only AP-1 and CREB binding sites in the IL-6 promoter are required in NE-induced IL-6 expression. The results suggest that chronic stress may increase IL-6 secretion of human gastric epithelial cells, at least in part, by the stress-associated hormone norepinephrine, and provides basic data on stress and gastric cancer progression.
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Affiliation(s)
- R Yang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China, Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Q Lin
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China, Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - H B Gao
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China, Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - P Zhang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China, Department of Biochemistry and Molecular Cell Biology, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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17
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Shakeri R, Malekzadeh R, Etemadi A, Nasrollahzadeh D, Abedi-Ardekani B, Khoshnia M, Islami F, Pourshams A, Pawlita M, Boffetta P, Dawsey SM, Kamangar F, Abnet CC. Association of tooth loss and oral hygiene with risk of gastric adenocarcinoma. Cancer Prev Res (Phila) 2013; 6:477-82. [PMID: 23503651 DOI: 10.1158/1940-6207.capr-12-0491] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Poor oral health and tooth loss have been proposed as possible risk factors for some chronic diseases, including gastric cancer. However, a small number of studies have tested these associations. We conducted a case-control study in Golestan Province, Iran, that enrolled 309 cases diagnosed with gastric adenocarcinoma (118 noncardia, 161 cardia, and 30 mixed-locations) and 613 sex, age, and neighborhood matched controls. Data on oral health were obtained through physical examination and questionnaire including tooth loss, the number of decayed, missing, and filled teeth, and frequency of tooth brushing. ORs and 95% confidence intervals (95% CI) were obtained using conditional logistic regression models adjusted for potential confounders. Standard one degree-of-freedom linear trend test and a multiple degree-of-freedom global test of the effect of adding oral hygiene variables to the model were also calculated. Our results showed apparent associations between tooth loss and decayed, missing, filled teeth (DMFT) score with risk of gastric cancer, overall and at each anatomic subsite. However, these associations were not monotonic and were strongly confounded by age. The results also showed that subjects who brushed their teeth less than daily were at significantly higher risk for gastric cardia adenocarcinoma ORs (95% CI) of 5.6 (1.6-19.3). We found evidence for an association between oral health and gastric cancer, but the nonmonotonic association, the relatively strong effect of confounder adjustment, and inconsistent results across studies must temper the strength of any conclusions.
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Affiliation(s)
- Ramin Shakeri
- Digestive Disease Research Centre, Tehran University of Medical Sciences, Shariati Hospital, 1411713135, Tehran, Iran
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18
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Do T, Devine D, Marsh PD. Oral biofilms: molecular analysis, challenges, and future prospects in dental diagnostics. Clin Cosmet Investig Dent 2013; 5:11-9. [PMID: 23674928 PMCID: PMC3652372 DOI: 10.2147/ccide.s31005] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Oral biofilms are functionally and structurally organized polymicrobial communities that are embedded in an extracellular matrix of exopolymers on mucosal and dental surfaces. These biofilms are found naturally in health, and provide benefits to the host. However, this relationship can break down, and disease can occur; disease is associated with a shift in the balance of the species within these biofilms. Simple diagnostic tests have been developed that involve the culture of selected bacteria, eg, those implicated in dental caries, facilitating an assessment of risk of further disease in individual patients. However, oral diseases have a complex etiology, and because only around 50% of oral biofilm can be grown at present, culture-independent molecular-based approaches are being developed that give a more comprehensive assessment of the presence of a range of putative pathogens in samples. The diversity of these biofilms creates challenges in the interpretation of findings, and future work is investigating the ability of novel techniques to detect biological activity and function in oral biofilms, rather than simply providing a catalogue of microbial names.
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Affiliation(s)
- Thuy Do
- Department of Oral Biology, Leeds Dental Institute, Leeds
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19
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Salazar CR, Sun J, Li Y, Francois F, Corby P, Perez-Perez G, Dasanayake A, Pei Z, Chen Y. Association between selected oral pathogens and gastric precancerous lesions. PLoS One 2013; 8:e51604. [PMID: 23308100 PMCID: PMC3538744 DOI: 10.1371/journal.pone.0051604] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 11/02/2012] [Indexed: 12/13/2022] Open
Abstract
We examined whether colonization of selected oral pathogens is associated with gastric precancerous lesions in a cross-sectional study. A total of 119 participants were included, of which 37 were cases of chronic atrophic gastritis, intestinal metaplasia, or dysplasia. An oral examination was performed to measure periodontal indices. Plaque and saliva samples were tested with real-time quantitative PCR for DNA levels of pathogens related to periodontal disease (Porphyromonas gingivalis, Tannerella forsythensis, Treponema denticola, Actinobacillus actinomycetemcomitans) and dental caries (Streptococcus mutans and S. sobrinus). There were no consistent associations between DNA levels of selected bacterial species and gastric precancerous lesions, although an elevated but non-significant odds ratio (OR) for gastric precancerous lesions was observed in relation to increasing colonization of A. actinomycetemcomitans (OR = 1.36 for one standard deviation increase, 95% Confidence Interval = 0.87-2.12), P. gingivalis (OR = 1.12, 0.67-1.88) and T. denticola (OR = 1.34, 0.83-2.12) measured in plaque. To assess the influence of specific long-term infection, stratified analyses by levels of periodontal indices were conducted. A. actinomycetemcomitans was significantly associated with gastric precancerous lesions (OR = 2.51, 1.13-5.56) among those with ≥ median of percent tooth sites with PD ≥ 3 mm, compared with no association among those below the median (OR = 0.86, 0.43-1.72). A significantly stronger relationship was observed between the cumulative bacterial burden score of periodontal disease-related pathogens and gastric precancerous lesions among those with higher versus lower levels of periodontal disease indices (p-values for interactions: 0.03-0.06). Among individuals with periodontal disease, high levels of colonization of periodontal pathogens are associated with an increased risk of gastric precancerous lesions.
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Affiliation(s)
- Christian R. Salazar
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, New York, United States of America
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York, United States of America
| | - Jinghua Sun
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York, United States of America
| | - Yihong Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York, United States of America
| | - Fritz Francois
- Department of Medicine, New York University School of Medicine, New York, New York, New York, United States of America
- New York University Cancer Institute, New York University School of Medicine, New York, New York, New York, United States of America
| | - Patricia Corby
- Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, New York, New York, United States of America
| | - Guillermo Perez-Perez
- Department of Microbiology, New York University School of Medicine, New York, NY, United States of America
| | - Ananda Dasanayake
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, New York, United States of America
| | - Zhiheng Pei
- Department of Medicine, New York University School of Medicine, New York, New York, New York, United States of America
- Department of Pathology, New York University School of Medicine, New York, New York, New York, United States of America
| | - Yu Chen
- Department of Medicine, New York University School of Medicine, New York, New York, New York, United States of America
- New York University Cancer Institute, New York University School of Medicine, New York, New York, New York, United States of America
- Division of Epidemiology, Department of Environmental Medicine, New York University School of Medicine, New York, New York, New York, United States of America
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20
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Salazar CR, Francois F, Li Y, Corby P, Hays R, Leung C, Bedi S, Segers S, Queiroz E, Sun J, Wang B, Ho H, Craig R, Cruz GD, Blaser MJ, Perez-Perez G, Hayes RB, Dasanayake A, Pei Z, Chen Y. Association between oral health and gastric precancerous lesions. Carcinogenesis 2012; 33:399-403. [PMID: 22139442 PMCID: PMC3384024 DOI: 10.1093/carcin/bgr284] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/18/2011] [Accepted: 11/25/2011] [Indexed: 01/05/2023] Open
Abstract
Although recent studies have suggested that tooth loss is positively related to the risk of gastric non-cardia cancer, the underlying oral health conditions potentially responsible for the association remain unknown. We investigated whether clinical and behavioral measures of oral health are associated with the risk of gastric precancerous lesions. We conducted a cross-sectional study of 131 patients undergoing upper gastrointestinal endoscopy. Cases were defined as those with gastric precancerous lesions including intestinal metaplasia or chronic atrophic gastritis on the basis of standard biopsy review. A validated structured questionnaire was administered to obtain information on oral health behaviors. A comprehensive clinical oral health examination was performed on a subset of 91 patients to evaluate for periodontal disease and dental caries experience. A total of 41 (31%) cases of gastric precancerous lesions were identified. Compared with non-cases, cases were significantly more likely to not floss their teeth [odds ratio (OR) = 2.89, 95% confidence interval (CI): 1.09-7.64], adjusting for age, sex, race, body mass index, smoking status, educational attainment and Helicobacter pylori status in serum. Among participants who completed the oral examination, cases (n = 28) were more likely to have a higher percentage of sites with gingival bleeding than non-cases [OR = 2.63, 95% CI: 1.37-5.05 for a standard deviation increase in bleeding sites (equivalent to 19.7%)], independent of potential confounders. Our findings demonstrate that specific oral health conditions and behaviors such as gingival bleeding and tooth flossing are associated with gastric precancerous lesions.
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Affiliation(s)
- Christian R. Salazar
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY 10003, USA
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY 10032, USA
| | - Fritz Francois
- Department of Medicine
- New York University Cancer Institute, New York University School of Medicine, New York, NY 10016, USA
| | - Yihong Li
- Department of Basic Science and Craniofacial Biology
| | | | - Rosemary Hays
- Department of Dental Hygiene, New York University College of Dentistry, New York, NY 10010, USA
| | - Celine Leung
- Division of Epidemiology, Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Sukhleen Bedi
- Division of Epidemiology, Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Stephanie Segers
- Division of Epidemiology, Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Erica Queiroz
- Bluestone Center for Clinical Research, New York University College of Dentistry, New York, NY 10010, USA
| | - Jinghua Sun
- Department of Basic Science and Craniofacial Biology
| | | | | | - Ronald Craig
- Department of Basic Science and Craniofacial Biology
- Department of Periodontology and Implant Dentistry
| | - Gustavo D. Cruz
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY 10003, USA
| | - Martin J. Blaser
- Department of Medicine
- Department of Microbiology, New York University School of Medicine, New York, NY 10016, USA
| | - Guillermo Perez-Perez
- Department of Medicine
- Department of Microbiology, New York University School of Medicine, New York, NY 10016, USA
| | - Richard B. Hayes
- New York University Cancer Institute, New York University School of Medicine, New York, NY 10016, USA
- Division of Epidemiology, Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Ananda Dasanayake
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY 10003, USA
| | - Zhiheng Pei
- Department of Medicine
- Department of Pathology
| | - Yu Chen
- Department of Medicine
- New York University Cancer Institute, New York University School of Medicine, New York, NY 10016, USA
- Division of Epidemiology, Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA
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Abstract
The oral cavity of humans is inhabited by hundreds of bacterial species and some of them have a key role in the development of oral diseases, mainly dental caries and periodontitis. We describe for the first time the metagenome of the human oral cavity under health and diseased conditions, with a focus on supragingival dental plaque and cavities. Direct pyrosequencing of eight samples with different oral-health status produced 1 Gbp of sequence without the biases imposed by PCR or cloning. These data show that cavities are not dominated by Streptococcus mutans (the species originally identified as the ethiological agent of dental caries) but are in fact a complex community formed by tens of bacterial species, in agreement with the view that caries is a polymicrobial disease. The analysis of the reads indicated that the oral cavity is functionally a different environment from the gut, with many functional categories enriched in one of the two environments and depleted in the other. Individuals who had never suffered from dental caries showed an over-representation of several functional categories, like genes for antimicrobial peptides and quorum sensing. In addition, they did not have mutans streptococci but displayed high recruitment of other species. Several isolates belonging to these dominant bacteria in healthy individuals were cultured and shown to inhibit the growth of cariogenic bacteria, suggesting the use of these commensal bacterial strains as probiotics to promote oral health and prevent dental caries.
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Shi M, Liu D, Duan H, Han C, Wei B, Qian L, Chen C, Guo L, Hu M, Yu M, Song L, Shen B, Guo N. Catecholamine up-regulates MMP-7 expression by activating AP-1 and STAT3 in gastric cancer. Mol Cancer 2010; 9:269. [PMID: 20939893 PMCID: PMC2964618 DOI: 10.1186/1476-4598-9-269] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Accepted: 10/12/2010] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Stress, anxiety and depression can cause complex physiological and neuroendocrine changes, resulting in increased level of stress related hormone catecholamine, which may constitute a primary mechanism by which physiological factors impact gene expression in tumors. In the present study, we investigated the effects of catecholamine stimulation on MMP-7 expression in gastric cancer cells and elucidated the molecular mechanisms of the up-regulation of MMP-7 level by catecholamine through an adrenergic signaling pathway. RESULTS Increased MMP-7 expression was identified at both mRNA and protein levels in the gastric cancer cells in response to isoproterenol stimulation. β2-AR antigonist effectively abrogated isoproterenol-induced MMP-7 expression. The activation of STAT3 and AP-1 was prominently induced by isoproterenol stimulation and AP-1 displayed a greater efficacy than STAT3 in isoproterenol-induced MMP-7 expression. Mutagenesis of three STAT3 binding sites in MMP-7 promoter failed to repress the transactivation of MMP-7 promoter and silencing STAT3 expression was not effective in preventing isoproterenol-induced MMP-7 expression. However, isoproterenol-induced MMP-7 promoter activities were completely disappeared when the AP-1 site was mutated. STAT3 and c-Jun could physically interact and bind to the AP-1 site, implicating that the interplay of both transcriptional factors on the AP-1 site is responsible for isoproterenol-stimulated MMP-7 expression in gastric cancer cells. The expression of MMP-7 in gastric cancer tissues was found to be at the site where β2-AR was overexpressed and the levels of MMP-7 and β2-AR were the highest in the metastatic locus of gastric cancer. CONCLUSIONS Up-regulation of MMP-7 expression through β2-AR-mediated signaling pathway is involved in invasion and metastasis of gastric cancer.
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Affiliation(s)
- Ming Shi
- Department of Molecular Immunology, Institute of Basic Medical Sciences, Beijing 100850, PR China
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23
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Meurman JH. Oral microbiota and cancer. J Oral Microbiol 2010; 2. [PMID: 21523227 PMCID: PMC3084564 DOI: 10.3402/jom.v2i0.5195] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2010] [Revised: 06/29/2010] [Accepted: 06/29/2010] [Indexed: 12/15/2022] Open
Abstract
Inflammation caused by infections may be the most important preventable cause of cancer in general. However, in the oral cavity the role of microbiota in carcinogenesis is not known. Microbial populations on mouth mucosa differ between healthy and malignant sites and certain oral bacterial species have been linked with malignancies but the evidence is still weak in this respect. Nevertheless, oral microorganisms inevitably up-regulate cytokines and other inflammatory mediators that affect the complex metabolic pathways and may thus be involved in carcinogenesis. Poor oral health associates statistically with prevalence of many types of cancer, such as pancreatic and gastrointestinal cancer. Furthermore, several oral micro-organisms are capable of converting alcohol to carcinogenic acetaldehyde which also may partly explain the known association between heavy drinking, smoking, poor oral health and the prevalence of oral and upper gastrointestinal cancer. A different problem is the cancer treatment-caused alterations in oral microbiota which may lead to the emergence of potential pathogens and subsequent other systemic health problems to the patients. Hence clinical guidelines and recommendations have been presented to control oral microbiota in patients with malignant disease, but also in this area the scientific evidence is weak. More controlled studies are needed for further conclusion.
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Affiliation(s)
- Jukka H Meurman
- Institute of Dentistry, University of Helsinki, Helsinki, Finland
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Is the presence of Helicobacter pylori in dental plaque of patients with chronic periodontitis a risk factor for gastric infection? CANADIAN JOURNAL OF GASTROENTEROLOGY = JOURNAL CANADIEN DE GASTROENTEROLOGIE 2009; 23:177-9. [PMID: 19319381 DOI: 10.1155/2009/950527] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Helicobacter pylori is considered to be a pathogen responsible for gastritis and peptic ulcers, and a risk factor for gastric cancer. A periodontal pocket in the teeth of individuals with chronic periodontitis may function as a reservoir for H pylori. OBJECTIVE The present study was undertaken to evaluate whether the presence of H pylori in the dental plaque of patients with and without periodontitis correlates with gastric involvement. METHODS A total of 101 patients with dyspepsia were included in the present study. Subjects were divided into periodontitis and nonperiodontitis groups. For the detection of H pylori in dental plaque, samples were collected from two teeth using a periodontal curette. Subgingival plaque was obtained by inserting two sterile paper points into periodontal pockets for 20 s. This was followed by an upper gastrointestinal endoscopy and antral biopsies. RESULTS Sixty-five per cent of patients had dental plaque positive for H pylori and more than 50% harboured the bacteria in their stomach. Periodontitis patients had a significantly higher percentage of H pylori in their dental plaque (79% versus 43%; P<0.05) and the stomach (60% versus 33%; P<0.05) than patients with no periodontitis. Additionally, 78% of patients from the periodontitis group versus only 30% from the nonperiodontitis group had a positive test result for the coexistence of H pylori in both dental plaque and the stomach. CONCLUSION Patients with poor oral hygiene have a higher prevalence of H pylori in dental plaque and in the stomach. This finding suggests that the oral cavity may be a reservoir for H pylori, and potentially a source of transmission or reinfection.
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Meyer MS, Joshipura K, Giovannucci E, Michaud DS. A review of the relationship between tooth loss, periodontal disease, and cancer. Cancer Causes Control 2008; 19:895-907. [PMID: 18478344 DOI: 10.1007/s10552-008-9163-4] [Citation(s) in RCA: 220] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2007] [Accepted: 04/09/2008] [Indexed: 12/25/2022]
Abstract
Recent studies have investigated the association between periodontal disease, tooth loss, and several systemic diseases including cancer, cardiovascular disease, and preterm birth. Periodontal disease, a chronic inflammatory condition, is highly prevalent in adult populations around the world, and may be preventable. Estimates of prevalence vary between races and geographic regions, with a marked increase in the occurrence of periodontal disease with advancing age. Worldwide estimates for the prevalence of severe periodontal disease generally range from 10 to 15%. The relationship between oral health and cancer has been examined for a number of specific cancer sites. Several studies have reported associations between periodontal disease or tooth loss and risk of oral, upper gastrointestinal, lung, and pancreatic cancer in different populations. In a number of studies, these associations persisted after adjustment for major risk factors, including cigarette smoking and socioeconomic status. This review provides a summary of these findings, discusses possible biological mechanisms involved, and raises methodological issues related to studying these relationships.
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Affiliation(s)
- Mara S Meyer
- Department of Epidemiology, Harvard School of Public Health, Kresge Building, Boston, MA, 02115, USA.
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26
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Michaud DS, Liu Y, Meyer M, Giovannucci E, Joshipura K. Periodontal disease, tooth loss, and cancer risk in male health professionals: a prospective cohort study. Lancet Oncol 2008; 9:550-8. [PMID: 18462995 DOI: 10.1016/s1470-2045(08)70106-2] [Citation(s) in RCA: 278] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Studies suggest that tooth loss and periodontal disease might increase the risk of developing various cancers; however, smoking might have confounded the reported associations. We aimed to assess whether periodontal disease or tooth loss is associated with cancer risk. METHODS The analysis was done in a prospective study (the Health Professionals Follow-Up Study [HPFS]), which was initiated in 1986 when US male health professionals aged 40-75 years responded to questionnaires posted by the Department of Nutrition, Harvard University School of Public Health, Boston, MA, USA. In addition to the baseline questionnaires, follow-up questionnaires were posted to all living participants every 2 years and dietary questionnaires every 4 years. At baseline, participants were asked whether they had a history of periodontal disease with bone loss. Participants also reported number of natural teeth at baseline and any tooth loss during the previous 2 years was reported on the follow-up questionnaires. Smoking status and history of smoking were obtained at baseline and in all subsequent questionnaires. Additionally at baseline, participants reported their mean frequency of food intake over the previous year on a 131-item semiquantitative food-frequency questionnaire. Participants reported any new cancer diagnosis on the follow-up questionnaires. Endpoints for this study were risk of total cancer and individual cancers with more than 100 cases. Multivariate hazard ratios (HRs) and 95% CIs were calculated by use of Cox proportional hazard models according to periodontal disease status and number of teeth at baseline. FINDINGS In the main analyses, 48 375 men with median follow-up of 17.7 years (1986 to Jan 31, 2004) were eligible after excluding participants diagnosed with cancer before 1986 (other than non-melanoma skin cancer, n=2076) and those with missing data on periodontal disease (n=1078). 5720 incident cancer cases were documented (excluding non-melanoma skin cancer and non-aggressive prostate cancer). The five most common cancers were colorectal (n=1043), melanoma of the skin (n=698), lung (n=678), bladder (n=543), and advanced prostate (n=541). After adjusting for known risk factors, including detailed smoking history and dietary factors, participants with a history of periodontal disease had an increased risk of total cancer (HR 1.14 [95% CI 1.07-1.22]) compared with those with no history of periodontal disease. By cancer site, significant associations for those with a history of periodontal disease were noted for lung (1.36 [1.15-1.60]), kidney (1.49 [1.12-1.97]), pancreas (1.54 [1.16-2.04]; findings previously published), and haematological cancers (1.30 [1.11-1.53]). Fewer teeth at baseline (0-16) was associated with an increase in risk of lung cancer (1.70 [1.37-2.11]) for those with 0-16 teeth versus those with 25-32 teeth. In never-smokers, periodontal disease was associated with significant increases in total (1.21 [1.06-1.39]) and haematological cancers (1.35 [1.01-1.81]). By contrast, no association was noted for lung cancer (0.96 [0.46-1.98]). INTERPRETATION Periodontal disease was associated with a small, but significant, increase in overall cancer risk, which persisted in never-smokers. The associations recorded for lung cancer are probably because of residual confounding by smoking. The increased risks noted for haematological, kidney, and pancreatic cancers need confirmation, but suggest that periodontal disease might be a marker of a susceptible immune system or might directly affect cancer risk.
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Affiliation(s)
- Dominique S Michaud
- Department of Epidemiology and Public Health, Imperial College London, London, UK.
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27
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van Amsterdam K, van Vliet AHM, Kusters JG, van der Ende A. Of microbe and man: determinants ofHelicobacter pylori-related diseases. FEMS Microbiol Rev 2006; 30:131-56. [PMID: 16438683 DOI: 10.1111/j.1574-6976.2005.00006.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The human gastric pathogen Helicobacterpylori infects the human gastric mucus layer of approximately half of the world's population. Colonization with this bacterium results in superficial gastritis without clinical symptoms, but can progress into gastric or duodenal ulcers, gastric malignancies and mucosa-associated lymphoid tissue-lymphomas. Disease outcome is affected by a complex interplay between host, environmental and bacterial factors. Irrespective of disease outcome, the majority of H. pylori infected individuals remain colonized for life. Changing conditions in the human gastric mucosa may alter gene expression and/or result in the outgrowth of more fit H. pylori variants. As such, H. pylori is a highly flexible organism that is optimally adapted to its host. the heterogeneity in H. pylori populations make predictions on H. pylori-related pathogenesis difficult. In this review, we discuss host, environmental and bacterial factors that are important in disease progression. Moreover, H. pylori adaptive mechanisms, which allow its life-long survival and growth in the gastric mucosa are considered.
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Affiliation(s)
- Karin van Amsterdam
- Department of Medical Microbiology, Academic Medical Center, Amsterdam, The Netherlands
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Abnet CC, Qiao YL, Dawsey SM, Dong ZW, Taylor PR, Mark SD. Tooth loss is associated with increased risk of total death and death from upper gastrointestinal cancer, heart disease, and stroke in a Chinese population-based cohort. Int J Epidemiol 2005; 34:467-74. [PMID: 15659476 DOI: 10.1093/ije/dyh375] [Citation(s) in RCA: 224] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Tooth loss has previously been associated with a higher risk of cancer, heart disease, and stroke, but the role of confounding by smoking remains an issue. METHODS We conducted a cohort study including 29,584 healthy, rural Chinese adults who were participants in a chemoprevention trial from 1986 through 1991 and who have been followed-up through 2001. We categorized tooth loss for each subject as less than or equal to or greater than the median number of teeth lost for other subjects of the same age at baseline. Mortality outcomes were categorized as follows: total death (n = 9362), upper gastrointestinal (GI) cancer death (n = 2625), other cancer death (n = 514), heart disease death (n = 1932), and fatal stroke (n = 2866). RESULTS Individuals with greater than the age-specific median number of teeth lost had statistically significant 13% increased risk of total death [95% confidence interval (CI) 9-18%], 35% increased risk of upper GI cancer death (95% CI 14-59%), 28% increased risk of heart disease death (95% CI 17-40%), and 12% increased risk of stroke death (95% CI 2-23%), but no significantly increased risk of death from cancer at other sites. These elevated risks were present in male smokers, male non-smokers, and females, nearly all never-smokers. CONCLUSIONS In this Asian population, tooth loss significantly increased the risk of total death and death from upper GI cancer, heart disease, and stroke. These associations were not limited to tobacco smokers.
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Affiliation(s)
- Christian C Abnet
- Cancer Prevention Studies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
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Irie M, Asami S, Nagata S, Ikeda M, Miyata M, Kasai H. Psychosocial factors as a potential trigger of oxidative DNA damage in human leukocytes. Jpn J Cancer Res 2001; 92:367-76. [PMID: 11267949 PMCID: PMC5926712 DOI: 10.1111/j.1349-7006.2001.tb01104.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Although numerous studies have been carried out on the stress-cancer linkage, the results are still inconclusive. One of the useful, but rarely applied, methods to assess this linkage is to examine the relationship between psychosocial stress and cancer-predisposing genetic alterations simultaneously. We investigated whether various psychosocial factors can be associated with the levels of 8-hydroxydeoxyguanosine (8-OH-dG), a biomarker of cancer-related oxidative DNA damage, in peripheral blood leukocytes in 362 healthy workers (276 males and 86 females). After adjustments for age, body mass index, cigarette smoking, and alcohol use, female subjects showed positive relationships between the amount of 8-OH-dG and the Tension-Anxiety, Depression-Rejection, Anger-Hostility, Fatigue, and Confusion scores of the Profile of Mood States, respectively. The levels of 8-OH-dG also increased reliably in the female subjects who had poor stress-coping behaviors, particularly wishful thinking strategy, in the NIOSH general job stress instrument. There were positive relationships of the 8-OH-dG levels to average working hours, a self-blame coping strategy, and recent loss of a close family member in male subjects. These findings in a nonclinical sample of healthy adults not only provide evidence of a stress-cancer linkage, but also suggest possible sex differences in the mechanisms of stress-related cancer initiation.
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Affiliation(s)
- M Irie
- Department of Mental Health, University of Occupational and Environmental Health, Yahatanishi-ku, Kitakyushu 807-8555, Japan.
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