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Thwin KM, Kaneko N, Okubo H, Yamaga T, Suwama K, Yoshihara A, Iwasaki M, Ito Y, Tanaka J, Narita I, Ogawa H. Association between dry eye and periodontal disease in community-dwelling Japanese adults: data from the Uonoma cohort study. BMC Oral Health 2024; 24:47. [PMID: 38191354 PMCID: PMC10775486 DOI: 10.1186/s12903-023-03773-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/13/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND While research has explored the risk of periodontal disease in various eye conditions, the link between dry eye and periodontal disease remains underexplored, especially in Japanese adults. This study aims to investigate the association between dry eye and periodontal disease in community-dwelling Japanese adults. METHODS This study is a subset of the Uonuma cohort study, which includes Japanese adults aged 40 years and older residing in the Uonuma area of Niigata Prefecture, Japan. Participants completed a self-administered, paper-based questionnaire. Statistical analyses, including the chi-square test, independent t test, ANOVA test, and logistic regressions, were employed to assess the association of periodontal disease with independent variables. RESULTS Among 36,488 participants (average age 63.3 years, 47.4% men), 39.3% had a history of periodontal disease, and gender differences were statistically significant (p < 0.001). Significant associations were found between periodontal disease and dry eye diagnosis or symptoms. Univariable logistic regression revealed links between periodontal disease and age, gender, living status, alcohol consumption, remaining teeth, bite molar availability, and history of dry eye disease or symptoms. Multiple-adjusted regression found that doctor-diagnosed dry eye was associated with a higher likelihood of periodontal disease (odds ratio, 1.12; 95% confidence interval, 1.03-1.22). Participants who never experienced dryness or foreign body sensation had lower ORs of periodontal disease than those who always experienced such symptoms across all models. CONCLUSION A significant correlation was found between dry eye and periodontal disease in Japanese adults. Regular check-ups, early detection, and effective management of both conditions are strongly recommended.
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Affiliation(s)
- Kaung Myat Thwin
- Division of Preventive Dentistry, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274, Gakkocho-dori, Chuo-ku, Niigata, 951-8514, Japan
| | - Noboru Kaneko
- Division of Preventive Dentistry, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274, Gakkocho-dori, Chuo-ku, Niigata, 951-8514, Japan
| | - Hikaru Okubo
- Division of Preventive Dentistry, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274, Gakkocho-dori, Chuo-ku, Niigata, 951-8514, Japan
| | - Takayuki Yamaga
- Department of Oral Health, School of Dentistry, Matsumoto Dental University, Shiojiri, Japan
| | - Kana Suwama
- Division of Oral Science for Health Promotion, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Akihiro Yoshihara
- Division of Oral Science for Health Promotion, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Masanori Iwasaki
- Division of Preventive Dentistry, Department of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Yumi Ito
- Department of Health Promotion Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Junta Tanaka
- Department of Health Promotion Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Ichiei Narita
- Department of Health Promotion Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Hiroshi Ogawa
- Division of Preventive Dentistry, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2-5274, Gakkocho-dori, Chuo-ku, Niigata, 951-8514, Japan.
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Park JH, Lee H, Kim JW, Song TJ. Better oral hygiene is associated with a reduced risk of cataract: A nationwide cohort study. Front Med (Lausanne) 2023; 9:1036785. [PMID: 36660000 PMCID: PMC9842665 DOI: 10.3389/fmed.2022.1036785] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/02/2022] [Indexed: 01/04/2023] Open
Abstract
Objective To investigate the association of oral health status and oral hygiene behaviors with cataract occurrence longitudinally. Materials and methods Based on the National Health Screening cohort database of Korea, participants who underwent oral health screening by dentists in 2003 were included. Cataract was defined as two or more claims of disease classification for the International Classification of Diseases-10 (E10.34, E11.34, E12.34, E13.34, E14.34, H25, and H26) with cataract specific treatment or surgery procedure claim codes. The occurrence of cataract was analyzed with Cox proportional hazard model according to the presence of periodontitis and oral health examination findings, including missing teeth, caries, tooth brushing, and dental scaling. Results Overall, 103,619 subjects were included. During a median follow-up of 12.2 years, cataract developed in 12,114 (11.7%) participants. Poor oral health status such as the presence of periodontitis (adjusted hazard ratio [HR] 1.08, 95% CI [confidence interval] 0.99-1.17, p = 0.088) and increased number of missing teeth (adjusted HR = 1.74, 95% CI = 1.55-1.96, p < 0.001) was associated with the increased cataract risk. Better oral hygiene behaviors such as increased frequency of tooth brushing (adjusted HR = 0.84, 95% CI = 0.79-0.88, p < 0.001) and performed dental scaling within 1 year (adjusted HR = 0.90, 95% CI = 0.86-0.94, p < 0.001) were negatively associated with cataract occurrence. Conclusion Periodontitis and increased number of missing teeth may increase the risk of cataract. However, maintaining good oral hygiene through tooth brushing and dental scaling may reduce the risk of future cataract occurrence. Further studies should be performed to confirm the association between chronic oral inflammation and cataract.
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Affiliation(s)
- Jung-Hyun Park
- Department of Oral and Maxillofacial Surgery, Mokdong Hospital, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Heajung Lee
- Department of Neurology, Seoul Hospital, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Jin-Woo Kim
- Department of Oral and Maxillofacial Surgery, Mokdong Hospital, College of Medicine, Ewha Womans University, Seoul, South Korea
| | - Tae-Jin Song
- Department of Neurology, Seoul Hospital, College of Medicine, Ewha Womans University, Seoul, South Korea,*Correspondence: Tae-Jin Song,
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Bai S, Zhou J, Nong X, Shi R, Yuan Z, Ma C, Li J. Mechanism and effects of artesunate on the liver function of rats with type 1 diabetic periodontitis. Can J Physiol Pharmacol 2022; 100:741-754. [PMID: 35500287 DOI: 10.1139/cjpp-2021-0665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Periodontitis is an inflammatory disease of the gums. Periodontitis in patients with diabetes can aggravate insulin resistance, but its molecular and biological mechanism remains unclear. This study aimed to explore the effects of diabetic periodontitis on liver function and determine the mechanism by which artesunate improves liver function. Rats with streptozotocin-induced diabetes were divided into five groups, i.e., normal control group (NC group), diabetic periodontitis group (DM+PD group), artesunate intervention group (ART group), insulin intervention group (INS group), and combined medication intervention group (ART+INS group). Drug interventions were then administered to the rats in each group as follows: 50 mg/kg artesunate to the ART group, 6 U/kg insulin to the INS group, and 50 mg/kg artesunate + 6 U/kg insulin to the ART+INS group. Blood samples, liver tissues, and the maxillary alveolar bone were collected post-sacrifice. ART was found to significantly ameliorate hyperglycemia, blood lipid levels, and liver function. The levels of inflammatory factors reduced; the effect was more pronounced in the ART+INS group. Artesunate presumably inhibits the TLR4/NF-κB signaling pathway and expression of downstream inflammatory factors, thereby exerting a protective effect on diabetes-related liver function. This offers a fresh approach to treat diabetes mellitus.
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Affiliation(s)
- Shuoqiu Bai
- Guangxi Medical University, 74626, Nanning, Guangxi, China;
| | - Jingjing Zhou
- Guangxi Medical University, 74626, Nanning, Guangxi, China;
| | - Xiaolin Nong
- Guangxi Medical University, 74626, Nanning, China;
| | - Rongkang Shi
- Guangxi Medical University, 74626, Nanning, Guangxi, China;
| | - Zhong Yuan
- Guangxi Medical University, 74626, Nanning, Guangxi, China;
| | - Chubin Ma
- Guangxi Medical University, 74626, Nanning, Guangxi, China;
| | - Jiaquan Li
- Guangxi Medical University, 74626, Nanning, Guangxi, China;
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RISK OF AGE-RELATED MACULAR DEGENERATION IN PATIENTS WITH PERIODONTITIS: A Nationwide Population-Based Cohort Study. Retina 2021; 40:2312-2318. [PMID: 31895093 DOI: 10.1097/iae.0000000000002750] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE Periodontitis is an inflammatory disease that results in loss of connective tissue and bone support. Evidence shows a possible relationship between periodontitis and age-related macular degeneration (AMD). METHODS This population-based cohort study was conducted using data from the National Health Insurance Research Database in Taiwan, with a 13-year follow-up, to investigate the risk of AMD in patients with periodontitis. The periodontitis cohort included patients with newly diagnosed periodontitis between 2000 and 2012. The nonperiodontitis cohort was frequency-matched with the periodontitis cohort by age and sex, with a sample size of 41,661 in each cohort. RESULTS Patients with periodontitis had an increased risk of developing AMD compared with individuals without periodontitis (5.95 vs. 3.41 per 1,000 person-years, adjusted hazard ratio = 1.58 [95% confidence interval, 1.46-1.70]). The risk of developing AMD remained significant after stratification by age (adjusted hazard ratio = 1.48 [1.34-1.64] for age <65 years and 1.76 [1.57-1.97] for age ≥65 years), sex (adjusted hazard ratio = 1.40 [1.26-1.55] for women and 1.82 [1.63-2.04] for men), and presence of comorbidity (adjusted hazard ratio = 1.52 [1.40-1.66] for with comorbidity and 1.92 [1.63-2.26] for without comorbidity). In addition, patients with periodontitis showed an increased incidence for both nonexudative type AMD (5.43 vs. 3.13 per 1,000 person-years) and exudative type AMD (0.52 vs. 0.28 per 1,000 person-years). CONCLUSION People with periodontitis could be at a greater risk of developing AMD than those without periodontitis. However, we need more evidence to support this association.
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Exacerbation of AMD Phenotype in Lasered CNV Murine Model by Dysbiotic Oral Pathogens. Antioxidants (Basel) 2021; 10:antiox10020309. [PMID: 33670526 PMCID: PMC7922506 DOI: 10.3390/antiox10020309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/08/2021] [Accepted: 02/12/2021] [Indexed: 12/13/2022] Open
Abstract
Emerging evidence underscores an association between age-related macular degeneration (AMD) and periodontal disease (PD), yet the biological basis of this linkage and the specific role of oral dysbiosis caused by PD in AMD pathophysiology remains unclear. Furthermore, a simple reproducible model that emulates characteristics of both AMD and PD has been lacking. Hence, we established a novel AMD+PD murine model to decipher the potential role of oral infection (ligature-enhanced) with the keystone periodontal pathogen Porphyromonas gingivalis, in the progression of neovasculogenesis in a laser-induced choroidal-neovascularization (Li-CNV) mouse retina. By a combination of fundus photography, optical coherence tomography, and fluorescein angiography, we documented inflammatory drusen-like lesions, reduced retinal thickness, and increased vascular leakage in AMD+PD mice retinae. H&E further confirmed a significant reduction of retinal thickness and subretinal drusen-like deposits. Immunofluorescence microscopy revealed significant induction of choroidal/retinal vasculogenesis in AMD+PD mice. qPCR identified increased expression of oxidative-stress, angiogenesis, pro-inflammatory mediators, whereas antioxidants and anti-inflammatory genes in AMD+PD mice retinae were notably decreased. Through qPCR, we detected Pg and its fimbrial 16s-RrNA gene expression in the AMD+PD mice retinae. To sum-up, this is the first in vivo study signifying a role of periodontal infection in augmentation of AMD phenotype, with the aid of a pioneering AMD+PD murine model established in our laboratory.
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The Existence of Periodontal Disease and Subsequent Ocular Diseases: A Population-Based Cohort Study. ACTA ACUST UNITED AC 2020; 56:medicina56110621. [PMID: 33218003 PMCID: PMC7698707 DOI: 10.3390/medicina56110621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022]
Abstract
Background and objectives: We aimed to evaluate the correlation between periodontal disease (PD) and following ocular diseases via the National Health Insurance Research Database in Taiwan. Materials and Methods: A retrospective cohort study was conducted. Subjects were regarded as having PD according to the diagnostic codes. For comparison, each subject with PD was matched to one non-PD individual from the database after exclusion. The main outcome was defined as the development of infectious keratitis, endophthalmitis, orbital cellulitis, lacrimal duct infection, uveitis and infectious scleritis. Cox proportional hazard regression was used to yield the adjusted hazard ratios (aHR) of ocular diseases between the study and control groups. Results: A total of 426,594 subjects were enrolled in both the study and control groups. In the multivariable analysis, significantly higher rates of infectious keratitis (aHR: 1.094, 95% CI: 1.030–1.161), uveitis (aHR: 1.144, 95% CI: 1.074–1.218) and infectious scleritis (aHR: 1.270, 95% CI: 1.114–1.449) were found in the study group. Concerning the PD interval, infectious keratitis (aHR: 1.159, 95% CI: 1.041–1.291) and infectious scleritis (aHR: 1.345, 95% CI: 1.055–1.714) would significantly occur in PD patients with an interval shorter than two years, individuals with a PD interval that ranged from two to five years were under a higher risk of developing uveitis (aHR: 1.184, 95% CI: 1.065–1.315) and infectious scleritis (aHR: 1.386, 95% CI: 1.125–1.708), and the rate of uveitis (aHR: 1.149, 95% CI: 1.038–1.272) was significantly higher if PD persisted more than five years. Conclusions: The presence of PD was moderately associated with the risk of developing infectious keratitis, uveitis and infectious scleritis.
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