Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
Michiko Furuta Last modified date:2021.10.25

Lecturer / Division of Oral Health, Growth and Development / Department of Dental Science / Faculty of Dental Science

1. M Furuta, K Takeuchi, T Takeshita, Y Shibata, S Suma, S Kageyama, M Asakawa, Y Shimazaki, J Hata, T Ninomiya, Y Yamashita, Baseline periodontal status and modifiable risk factors are associated with tooth loss over a 10-year period: estimates of population attributable risk in a Japanese community, Journal of Periodontology, 10.1002/JPER.21-0191, 2021.08.
2. Vy TN Nguyen, M Furuta, T Zaitsu, A Oshiro, Y Shimazaki, Y Ando, H Miyazaki, M Kambara, K Fukai, J Aida, Periodontal health predicts self-rated general health: A time-lagged cohort study, Community Dent Oral Epidemiol, 10.1111/cdoe.12691, 2021.08.
3. M Furuta, K Takeuchi, T Takeshita, Y Shibata, S Suma, S Kageyama, M Asakawa, J Hata, D Yoshida, Y Shimazaki, T Ninomiya, Y Yamashita, 10-year trend of tooth loss and associated factors in a Japanese population-based longitudinal study, BMJ OPEN, 10.1136/bmjopen-2020-048114, 11, 8, 2021.08.
4. J Ma, S Kageyama, T Takeshita, Y Shibata, M Furuta, M Asakawa, Y Yamashita, Clinical utility of subgingival plaque-specific bacteria in salivary microbiota for detecting periodontitis, PLOS ONE, 10.1371/journal.pone.0253502, 16, 6, 2021.06.
5. S Suma, M Furuta, K Takeuchi, M Tomioka, Y Iwase, Y Yamashita, Number of teeth, denture wearing and cognitive function in relation to nutritional status in residents of nursing homes, GERODONTOLOGY, 10.1111/ger.12554, 2021.05.
6. Daixi Zhang, Toru Takeshita, Michiko Furuta, Shinya Kageyama, Mikari Asakawa, Koki Nambu, Yoshihisa Yamashita, Tongue Microbiota Composition and Dental Caries Experience in Primary School Children, MSPHERE, 10.1128/mSphere.01252-20, 6, 2, 2021.04.
7. Toru Takeshita, Koichiro Matsumoto, Michiko Furuta, Satoru Fukuyama, Kenji Takeuchi, Hiroaki Ogata, Mikari Asakawa, Shinya Kageyama, Jun Hata, Toshiharu Ninomiya, Hiromasa Inoue, Yoshihisa Yamashita, Airflow limitation and tongue microbiota in community-dwelling elderly individuals, ERJ Open Res, 7, 00616-202, 2021.05.
8. Furuta M, Takeuchi K, Takeshita T, Tanaka A, Suma S, Shinagawa T, Shimazaki Y, Yamashita Y., Longitudinal associations of toothbrushing with obesity and hyperglycemia, Journal of Epidemiology, 2020.02.
9. Michiko Furuta, Kakuhiro Fukai, Jun Aida, Yoshihiro Shimazaki, Yuichi Ando, Hideo Miyazaki, Masaki Kambara, Yoshihisa Yamashita, Periodontal status and self-reported systemic health of periodontal patients regularly visiting dental clinics in the 8020 promotion foundation study of Japanese dental patients, Journal of Oral Science, 10.2334/josnusd.18-0128, 61, 2, 238-245, 2019.01, This nationwide cross-sectional survey investigated the association between periodontal disease and self-reported systemic health in periodontal patients who regularly visited private dental clinics in Japan. Data from 999 patients of 444 dental clinics were analyzed; the patients were aged 40 years or older, regularly visited dentists, and had diagnosed periodontal disease (defined as two or more teeth with a clinical attachment level ≥6 mm). Medical history was collected with a self-reported questionnaire. Number of teeth with a probing pocket depth (PPD) ≥5 mm was used to define periodontal status, and the highest quartile was used as the dependent variable. A Poisson regression model showed that histories of diabetes and hypertension were associated with a larger number of teeth with a PPD ≥5 mm (diabetes: prevalence rate ratio [PRR] 1.36, 95% confidence interval [CI] 1.00-1.85; hypertension: PRR 1.27, 95% CI 1.02-1.58) after adjusting for potential periodontal risk factors. These findings suggest that diabetes and hypertension are associated with worse periodontal disease. Dentists should confirm the diabetes and hypertension status of patients who receive maintenance care, because these conditions could affect periodontal management of patients..
10. Shinya Kageyama, Toru Takeshita, Kenji Takeuchi, Mikari Asakawa, Rie Matsumi, Michiko Furuta, Yukie Shibata, Kiyoshi Nagai, Masahiko Ikebe, Masaru Morita, Muneyuki Masuda, Yasushi Toh, Yutaka Kiyohara, Toshiharu Ninomiya, Yoshihisa Yamashita, Characteristics of the salivary microbiota in patients with various digestive tract cancers, Frontiers in Microbiology, 10.3389/fmicb.2019.01780, 10, 2019.01, The salivary microbiota is constantly swallowed and delivered to the digestive tract. These bacteria may be associated with gastrointestinal diseases. This case-control study examined the salivary microbiota in patients with digestive tract cancer (DTC) and evaluated their differential distribution based on the cancer sites. We collected saliva samples from 59 patients with cancer in any part of the digestive tract (tongue/pharynx, esophagus, stomach, and large intestine) and from 118 age-and sex-matched control subjects. There was no significant difference in periodontal status between DTC patients and control subjects (P = 0.72). We examined the bacterial diversity and composition in saliva by 16S ribosomal RNA gene sequencing. Salivary bacterial diversity in DTC patients was significantly higher than that in control subjects [number of operational taxonomic units (OTUs), P = 0.02; Shannon index, P < 0.01; Chao1, P = 0.04]. Eleven differentially abundant OTUs in DTC patients were identified using the linear discriminant analysis effect size (LEfSe) method. Based on the cancer sites, the diversity of salivary bacteria was especially higher in tongue/pharyngeal or esophageal cancer patients than in control subjects. Among the 11 differentially abundant OTUs in DTC patients, an OTU corresponding to Porphyromonas gingivalis was more abundant in the saliva of all groups of DTC patients compared to that in control subjects, and an OTU corresponding to Corynebacterium species was more abundant in all groups other than gastric cancer patients (P < 0.01). In addition, the relative abundances of OTUs corresponding to Fusobacterium nucleatum, Streptococcus parasanguinis II, and Neisseria species were significantly higher in tongue/pharyngeal cancer patients compared to their abundances in control subjects (P < 0.01). The relative abundance of an OTU corresponding to the Neisseria species was also significantly higher in gastric cancer patients and that of an OTU corresponding to Actinomyces odontolyticus was significantly higher in colorectal cancer patients (P < 0.01). These results suggest that the salivary microbiota might be associated with various digestive tract cancers..
11. Mizuki Saito, Yoshihiro Shimazaki, Kakuhiro Fukai, Michiko Furuta, Jun Aida, Yuichi Ando, Hideo Miyazaki, Masaki Kambara, Risk factors for tooth loss in adult Japanese dental patients
8020 Promotion Foundation Study, Journal of investigative and clinical dentistry, 10.1111/jicd.12392, 10, 2, e12392, 2019.05, AIM: The assessment of the risk of tooth loss in patients visiting a dental clinic is important for managing their oral health. In the present study, we examined the risk factors for tooth loss among dental patients. METHODS: Data from the 8020 Promotion Foundation Study on the Health Promotion Effects of Dental Care were used in the present study. The study involved 2743 patients who visited a dental clinic in Japan and completed a questionnaire and oral health examination at baseline and at the 2-year follow up. Tooth- and person-level risk factors for tooth loss during 2 years were subjected to a multilevel multivariate logistic regression analysis. RESULTS: In both the person- and tooth-level analyses, age, smoking habit, reason for dental visit, economic status, number of remaining teeth, and periodontal status were significantly associated with tooth loss. In the tooth-level analysis, tooth type, tooth status, and periodontal status were significantly related to tooth loss. Persons who visited a dental clinic for periodic maintenance had a significantly lower risk of tooth loss than those who visited only to receive dental treatment. CONCLUSIONS: Various tooth-level factors and modifiable factors, such as smoking cessation and periodic maintenance, are important for the suppression of tooth loss in dental patients..
12. Mikari Asakawa, Toru Takeshita, Michiko Furuta, Shinya Kageyama, Kenji Takeuchi, Jun Hata, Toshiharu Ninomiya, Yoshihisa Yamashita, Tongue Microbiota and Oral Health Status in Community-Dwelling Elderly Adults, mSphere, 10.1128/mSphere.00332-18, 3, 4, 2018.08, Tongue microbiota are a dominant source of oral microbial populations that are ingested with saliva, and therefore careful attention is required for the maintenance of health of elderly adults, who are susceptible to aspiration of oral contents. This study aimed to investigate the variation in tongue microbiota among community-dwelling elderly adults. Following a dental examination, tongue coating was collected from a 15-mm-diameter circular area at the center of the tongue dorsum of 506 elderly adults aged 70 to 80 years inhabiting the town of Hisayama, Japan. The microbial composition and density were determined by a 16S rRNA gene sequencing approach using a next-generation sequencer and quantitative PCR analysis, respectively. Co-occurrence network analysis identified two cohabiting groups of predominant commensals, one of which was primarily composed of Prevotella histicola, Veillonella atypica, Streptococcus salivarius, and Streptococcus parasanguinis; these organisms have been previously associated with an increased risk of mortality due to pneumonia in the frail elderly. This bacterial group was more predominant in the elderly with fewer teeth, a higher plaque index, and more dental caries experience, whereas the total bacterial density was independent of these traits. A higher density of fungi was also observed in the elderly with these traits, as well as in individuals who wore dentures. These results suggest that elderly adults with poorer oral health swallow a more dysbiotic microbiota formed on the tongue.IMPORTANCE Aspiration of oral contents can lead to pneumonia, which is a major cause of death among elderly adults susceptible to swallowing impairments. Tongue microbiota are a dominant source of oral microbial populations that are ingested with saliva. This large-scale population-based study revealed variations in the tongue microbiota among community-dwelling elderly adults. The total bacterial density was independent of the conditions of teeth surrounding the tongue, whereas the microbiota composition, especially the relative abundances of predominant commensals, showed an association with tooth conditions. Our results demonstrate that the elderly with fewer teeth, poorer dental hygiene, and more dental caries experience constantly ingest more dysbiotic microbiota, which could be harmful for their respiratory health..
13. Yuriko Harada, Kenji Takeuchi, Michiko Furuta, Akihiko Tanaka, Shunichi Tanaka, Naohisa Wada, Yoshihisa Yamashita, Gender-dependent associations between occupational status and untreated caries in Japanese adults, Industrial health, 10.2486/indhealth.2018-0062, 56, 6, 539-544, 2018.11, The aim of this study was to examine whether the presence of untreated caries is different across occupational status among Japanese adults. This was a cross-sectional survey of 1,342 individuals (990 males and 352 females) aged 40-64 yr who underwent medical and dental checkups at a healthcare center in 2011. Oral examination was performed by a dentist and the presence of untreated caries was defined as having at least one untreated decayed tooth. Data regarding current occupational status were obtained using a self-administered questionnaire; the participants were classified into five groups: professionals and managers, clerical and related workers, service and salespersons, agricultural, forestry, and fishery workers, and homemakers and unemployed. Gender-specific odds ratios (ORs) and 95% confidence intervals (CIs) of occupational status for the presence of untreated caries were estimated using logistic regression. After adjusting for potential confounders, female professionals and managers (OR=3.51, 95% CI=1.04-11.87) and service and salespersons (OR=5.29, 95% CI=1.39-20.11) had greater risks of the presence of untreated caries than female homemakers and unemployed. However, this tendency was not observed among males. In conclusion, there was a significant difference in risk of the presence of untreated caries by occupational status among females..
14. Michiko Furuta, Kenji Takeuchi, Yoshihiro Shimazaki, Toru Takeshita, Yukie Shibata, Jun Hata, Daigo Yoshida, Deok Young Park, Toshiharu Ninomiya, Yoshihisa Yamashita, Comparison of the periodontal condition in Korean and Japanese adults
A cross-sectional study, BMJ open, 10.1136/bmjopen-2018-024332, 8, 11, 2018.11, Objectives: Reports from national surveys in South Korea and Japan have indicated that the prevalence of periodontal disease is lower in Korea than in Japan. However, these national surveys have not evaluated factors related to periodontal health condition, including diabetes and metabolic syndrome. This study compared periodontal conditions between Korean and Japanese adults, in the context of general health status. Design Cross-sectional study. Setting National survey in South Korea (Korean National Health and Nutrition Examination Survey, 'KNHANES') and a population-based study in Japan (Hisayama study); both were conducted in 2012. Participants: This study included 3574 Korean and 2205 Japanese adults aged 40-79 years. Outcome measures: Periodontal condition was assessed by using the Community Periodontal Index (CPI). Examiners in Japan underwent clinical calibration training for periodontal examination with a gold-standard examiner from KNHANES, prior to the Hisayama study. Results The age-adjusted prevalences of periodontal disease, defined as CPI score ≥3, were 31.4% and 42.1% in South Korea and Japan, respectively (p<0.001). The age-adjusted prevalences of diabetes (p=0.018) and metabolic syndrome (p=0.001) were higher in Korea than in Japan. The numbers of present and filled teeth and percentages of participants who visited a dental clinic in the last 12 months were higher in Japan than in Korea (all p<0.001). Logistic regression analysis showed that the Japanese participants were more likely to have periodontal disease than were the Korean participants, after adjusting for age, sex, occupation, oral health status, oral health behaviour, diabetes and metabolic syndrome. Conclusions: A higher prevalence of periodontal disease was found in Japanese participants than in Korean participants. Further studies are needed to more clearly elucidate factors underlying the difference in periodontal conditions between the two populations, including those related to the dental healthcare system and dietary intake..
15. Kenji Takeuchi, Koichiro Matsumoto, Michiko Furuta, Satoru Fukuyama, Toru Takeshita, Hiroaki Ogata, Shino Suma, Yukie Shibata, Yoshihiro Shimazaki, Jun Hata, Toshiharu Ninomiya, Yoichi Nakanishi, Hiromasa Inoue, Yoshihisa Yamashita, Periodontal status and lung function decline in the community
the Hisayama study, Scientific reports, 10.1038/s41598-018-31610-3, 8, 1, 2018.12, This study aimed to determine whether periodontal status is related to a decline in lung function in a general Japanese population. We followed a total of 1,650 community-dwelling individuals (≥40 years) without chronic obstructive pulmonary disease, with at least one teeth, for 3 years. Periodontal status was assessed at baseline by clinical attachment loss (CAL) and probing pocket depth (PPD) at two sites for each tooth, and the mean values were calculated for each subject. Lung function was measured at baseline and follow-up using spirometry, and longitudinal decline in forced expiratory volume in one second (FEV
) was calculated. Multivariate Poisson regression with robust error variance was used to estimate risk ratio (RR). After adjusting for potential confounders including smoking status, there was a tendency for the adjusted RR of developing rapid lung function decline (≥160 mL/3years, the highest quartile of the distribution of FEV
declines) to increase as mean CAL levels increased (P trend = 0.039). Likewise, a positive association was observed between mean PPD levels and RR of developing rapid lung function decline (P trend = 0.047). Our findings suggest deterioration of periodontal status could be a risk factor for rapid lung function decline in the general Japanese population..
16. Naoko Yatabe, Kenji Takeuchi, Maya Izumi, Michiko Furuta, Toru Takeshita, Yukie Shibata, Shino Suma, Shinya Kageyama, Seijun Ganaha, Haruka Tohara, Yoshihisa Yamashita, Decreased cognitive function is associated with dysphagia risk in nursing home older residents, Gerodontology, 10.1111/ger.12366, 35, 4, 376-381, 2018.12, Objective: To examine the association between cognitive function and dysphagia risk among Japanese nursing home residents. Background: Reduction in cognitive function can influence the intake of food during swallowing, and may be an aggravating factor in dysphagia. Methods: This cross-sectional study included 236 residents aged ≥60 years from eight nursing homes. Screening of dysphagia, especially aspiration risk, was conducted using the Modified Water Swallow Test, whose scores from one to three were classified as at risk of dysphagia. Cognitive function was evaluated using Mini-Mental State Examination (MMSE). Number of teeth and occlusal support were evaluated by clinical examination. The participants were stratified into dentulous and edentulous groups, because the number of teeth could influence swallowing function. The odds ratio (OR) and 95% confidence interval (CI) for dysphagia risk based on the scores of MMSE were calculated using logistic regression. Demographic characteristics, activity of daily living, comorbidities, health behaviour and occlusal support were used as covariates. Results: Among the 236 participants (111 dentulous participants and 125 edentulous participants) included in our analysis, 16.9% belonged to risk of dysphagia. Dentulous participants with higher scores of MMSE tended to have significantly lower odds of dysphagia risk after adjusting for covariates (OR = 0.87, 95% CI = 0.80-0.96). Despite the lack of significant differences, edentulous participants with higher score of MMSE tended to have lower odds of dysphagia risk (OR = 0.92, 95% CI = 0.83-1.00). Conclusion: Decreased cognitive function may be an independent predictor of dysphagia among dentulous and edentulous adults..
17. Kenji Takeuchi, Maya Izumi, Michiko Furuta, Toru Takeshita, Yukie Shibata, Shinya Kageyama, Yuka Okabe, Sumio Akifusa, Seijun Ganaha, Yoshihisa Yamashita, Denture wearing moderates the association between aspiration risk and incident pneumonia in older nursing home residents
A prospective cohort study, International journal of environmental research and public health, 10.3390/ijerph16040554, 16, 4, 2019.02, Aspiration is increasingly recognized as a major risk for pneumonia, but a potential link between wearing dentures and incident pneumonia with aspiration risk is unclear. The aim of this study was to investigate whether denture wearing moderates the association between aspiration risk and incident pneumonia in older adults. We used prospective cohort data of 156 residents aged >70 years from eight nursing homes in Aso, Japan. Aspiration risk was evaluated using the modified water swallowing test. During a 1-year follow-up (2014 to 2015), information on incident pneumonia was obtained from nursing home medical records. During follow-up, pneumonia developed in 7.1% of participants. In the multivariate-adjusted Cox proportional hazards model, after adjusting for potential confounders, aspiration risk was independently associated with a 4.4-fold higher hazard ratio (HR) of incident pneumonia (95% confidence interval, CI, 1.16–16.43). The difference in the risk of incident pneumonia between subjects with aspiration risk who were wearing dentures and those not at risk of aspiration was not significant, whereas those with aspiration risk without dentures had a 7.3-fold higher HR of incident pneumonia than those not at risk of aspiration (95% CI, 1.02–52.63). Denture wearing might partially moderate the increased risk of incident pneumonia associated with aspiration risk..
18. Kenji Takeuchi, Koichiro Matsumoto, Michiko Furuta, Satoru Fukuyama, Toru Takeshita, Hisanobu Ogata, Shino Suma, Yukie Shibata, Y. Shimazaki, Jun Hata, T. Ninomiya, Yoichi Nakanishi, H. Inoue, Yoshihisa Yamashita, Periodontitis Is Associated with Chronic Obstructive Pulmonary Disease, Journal of Dental Research, 10.1177/0022034519833630, 98, 5, 534-540, 2019.05, Although they are known to share pathophysiological processes, the relationship between periodontitis and chronic obstructive pulmonary disease (COPD) is not fully understood. The aim of the present study was to test the hypothesis that periodontitis is associated with a greater risk of development of COPD, when smoking is taken into account. The analysis in a 5-y follow-up population-based cohort study was based on 900 community-dwelling Japanese adults (age: 68.8 ± 6.3 [mean ± SD], 46.0% male) without COPD aged 60 or older with at least 1 tooth. Participants were classified into 3 categories according to baseline periodontitis severity (no/mild, moderate, and severe). COPD was spirometrically determined by a fixed ratio of <0.7 for forced expiratory volume in 1 s (FEV 1 )/forced vital capacity (FVC) and by FEV 1 /FVC below the lower limit of normal. Poisson regression was used to calculate the relative risk (RR) of developing COPD according to the severity of periodontitis. The population attributable fraction (PAF) was also calculated. During follow-up, 22 (2.4%) subjects developed COPD. Compared with no/mild periodontitis subjects, a significantly increased risk of COPD occurred among severe periodontitis subjects (RR = 3.55; 95% confidence interval [CI], 1.18 to 10.67), but no significant differences were observed between the no/mild and moderate categories (RR = 1.48; 95% CI, 0.56 to 3.90). After adjustment for potential confounders, including smoking intensity, the relationship between severe periodontitis and risk of COPD remained significant (RR = 3.51; 95% CI, 1.15 to 10.74). Likewise, there was a positive association of periodontitis severity with risk of COPD (P for trend = 0.043). The PAF for COPD due to periodontitis was 22.6%. These data highlight the potential importance of periodontitis as a risk factor for COPD..
19. Takeuchi K, Furuta M, Okabe Y, Suma S, Takeshita T, Akifusa S, Adachi M, Kinoshita T, Kikutani T, Yamashita Y, Swallowing disorders and 1-year functional decline in community-dwelling older adults receiving home care., J Oral Rehabil, 44, 982-987, 2017.10.
20. Zakaria MN, Furuta M, Takeshita T, Shibata Y, Sundari R, Eshima N, Ninomiya T, Yamashita Y, Oral mycobiome in community-dwelling elderly and its relation to oral and general health conditions, Oral Dis, 10.1111/odi.12682., 23, 973-982, 2017.04.
21. Furuta M, Yamashita Y, Epidemiological Evidences for the Association of Obesity and Metabolic Disorders with Oral Diseases, Curr Oral Health Rep, 4, 51-58, 2017.04.
22. Takeuchi K, Ohara T, Furuta M, Takeshita T, Shibata Y, Hata J, Yoshida D, Yamashita Y, Ninomiya T, Tooth Loss and Risk of Dementia in the Community: the Hisayama Study, JOURNAL OF THE AMERICAN GERIATRICS SOCIETY, 10.1111/jgs.14791, 65, 5, E95-E100, 2017.05.
23. Okabe Y, Takeuchi K, Furuta M, Takeshita T, Shibata Y, Kageyama S, Ganaha S, Yamashita Y, Posterior teeth occlusion and dysphagia risk in older nursing home residents: a cross-sectional observational study, JOURNAL OF ORAL REHABILITATION, 10.1111/joor.12472, 44, 2, 89-95, 2017.02.
24. Yasunaga H, Takeshita T, Shibata Y, Furuta M, Shimazaki Y, Akifusa S, Ninomiya T, Kiyohara Y, Takahashi I, Yamashita Y, Exploration of bacterial species associated with the salivary microbiome of individuals with a low susceptibility to dental caries., Clin Oral Investig., 10.1007/s00784-016-2035-5., 2017.05.
25. Yamane-Takeuchi M, Ekuni D, Mizutani S, Kataoka K, Taniguchi-Tabata A, Azuma T, Furuta M, Tomofuji T, Iwasaki Y, Morita M, Associations among oral health-related quality of life, subjective symptoms, clinical status, and self-rated oral health in Japanese university students: a cross-sectional study, BMC ORAL HEALTH, 10.1186/s12903-016-0322-9, 16, 2016.11.
26. Furuta M, Liu A, Shinagawa T, Takeuchi K, Takeshita T, Shimazaki Y, Yamashita Y, Tooth loss and metabolic syndrome in middle-aged Japanese adults., J Clin Periodontl, 43, 482-491, 2016.06.
27. Takeuchi K, Izumi M, Furuta M, Takeshita T, Shibata Y, Kageyama S, Ganaha S, Yamashita Y, Association between posterior teeth occlusion and functional dependence among older adults in nursing homes in Japan., Geriatr Gerontol Int, 10.1111/ggi.12762, 2016.04.
28. Takeshita T, Kageyama S, Furuta M, Tsuboi H, Takeuchi K, Shibata Y, Shimazaki Y, Akifusa S, Ninomiya T, Kiyohara Y, Yamashita Y, Bacterial diversity in saliva and oral health-related conditions: the Hisayama Study., Sci Rep, 6, 22164, 2016.02.
29. Liu A, Furuta M, Takeuchi K, Yamashita Y, Dental caries and community socioeconomic status in Japanese and Chinese children: an ecological study., 口腔衛生会誌, 66, 32-38, 2015.12.
30. Takeuchi K, Izumi M, Furuta M, Takeshita T, Shibata Y, Kageyama S, Ganaha S, Yamashita Y, Posterior Teeth Occlusion Associated with Cognitive Function in Nursing Home Older Residents: A Cross-Sectional Observational Study., Plos One, 10, e0141737, 2015.10.
31. Takeuchi K, Furuta M, Takeshita T, Shibata Y, Shimazaki Y, Akifusa S, Ninomiya T, Kiyohara Y, Yamashita Y, Serum antibody to Porphyromonas gingivalis and periodontitis progression: the Hisayama Study, J Clin Periodontol, 42, 719-725, 2015.07.
32. Ahmad A, Furuta M, Shinagawa T, Takeuchi K, Takeshita T, Shimazaki Y, Yamashita Y, Association of periodontal status with liver abnormalities and metabolic syndrome., J Oral Sci, 57, 335-343, 2015.12.
33. Okabe Y, Furuta M, Akifusa S, Takeuchi K, Adachi M, Kinoshita T, Nakamura S, Yamashita Y, Swallowing function and nutritional status in Japanese elderly people receiving home-care services: A 1-year longitudinal study, J Nutr Health Aging, 2015.12.
34. Furuta M, Shimazaki Y, Tanaka S, Takeuchi K, Shibata Y, Takeshita T, Nishimura F, Yamashita Y, Gender-specific associations of serum antibody to Porphyromonas gingivalis and inflammatory markers, Biomed Res Int, 2015, 381821, 2015.01.
35. Takeuchi K, Furuta M, Takeshita T, Shibata Y, Shimazaki Y, Akifusa S, Ninomiya T, Kiyohara Y, Yamashita Y, Risk factors for reduced salivary flow rate in a Japanese population: the Hisayama Study, Biomed Res Int, 2015, 897971, 2015.02.
36. Takeshita T, Yasui M, Shibata Y, Furuta M, Saeki Y, Eshima N, Yamashita Y, Dental plaque development on a hydroxyapatite disk in young adults observed by using a barcoded pyrosequencing approach., Sci Rep, 10.1038/srep08136, 30, 8136, 2015.01.
37. Takeshita T, Matsuo K, Furuta M, Shibata Y, Fukami K, Shimazaki Y, Akifusa S, Han DH, Yokoyama T, Ninomiya T, Kiyohara Y, Yamashita Y, Distinct composition of the oral indigenous microbiota in South Korean and Japanese adults., Sci Rep, 10.1038/srep06990, 4, 6990, 2014.11.
38. Takeuchi K, Aida J, Furuta M, Yamashita Y, Osaka K, Nutritional status and dysphagia risk among community-dwelling frail older adults., J Nutr Health Aging, 18, 352-357, 2014.04.
39. Furuta M, Yamashita Y, Oral health and swallowing problems, Current Physical Medicine and Rehabilitation Reports, 1, 216-222, 2013.09.
40. Furuta M, Shimazaki Y, Takeshita T, Shibata Y, Akifusa S, Eshima N, Kiyohara Y, Ninomiya T, Hirakawa Y, Mukai N, Nagata M, Yamashita Y, Gender differences in the association between metabolic syndrome and periodontal disease: the Hisayama Study, J Clin Periodontol , 40, 743-752, 2013.08.
41. Ekuni D, Mizutani S, Kojima A, Tomofuji T, Irie K, Azuma T, Yoneda T, Furuta M, Eshima N, Iwasaki Y, Morita M, Relationship between increases in BMI and changes in periodontal status: A prospective cohort study., J Clin Periodontol, 10.1111/jcpe.12273, 2014.03.
42. Kojima A, Ekuni D, Mizutani S, Furuta M, Irie K, Azuma T, Tomofuji T, Iwasaki Y, Morita M, Relationships between self-rated oral health, subjective symptoms, oral health behavior and clinical conditions in Japanese university students: a cross-sectional survey at Okayama University., BMC Oral Health, 10.1186/1472-6831-13-62, 2013.11.
43. Ekuni D, Tomofuji T, Mizutani S, Furuta M, Irie K, Azuma T, Kojima A, Iwasaki Y, Morita M, Dental caries is correlated with knowledge of comprehensive food education in Japanese university students, Asia Pacific Journal of Clinical Nutrition, 22, 312-318, 2013.02.
44. Akhter R, Morita M, Ekuni D, Hassan NM, Furuta M, Yamanaka R, Matsuka Y, Wilson D, Self-reported aural symptoms, headache and temporomandibular disorders in Japanese young adults., BMC Musculoskelet Disord, 10.1186/1471-2474-14-58, 2013.02.
45. Furuta Michiko, Komiya-Nonaka M, Sumio Akifusa, Shimazaki Yoshihiro, Adachi M, Kinoshita T, Kikutani T, Yamashita Yoshihisa, Interrelationship of oral health status, swallowing function, nutritional status, and cognitive ability with activities of daily living in Japanese elderly people receiving home care services due to physical disabilities. , Community Dent Oral Epidemiol, 41, 173-181, 2012.08.
46. Takeuchi N, Ekuni D, Irie K, Furuta Michiko, Tomofuji T, Morita M, Watanabe T, Relationship between periodontal inflammation and fetal growth in pregnant women: a cross-sectional study., Arch Gynecol Obstet, 287, 951-957, 2012.12.
47. Mizutani S, Ekuni D, Furuta Michiko, Tomofuji T, Irie K, Azuma T, Kojima A, Nagase J, Iwasaki Y, Morita M, Effects of self-efficacy on oral health behaviours and gingival health in univeristy students aged 18- or 19-year-old, J Clin Periodontol, 57, 1615-1622, 2012.07.
48. Li H, Takeshita Toru, Furuta Michiko, Tomioka Mikiko, Shibata Yukie, Shimazaki Yoshihiro, Makimura K, Yamashita Yoshihisa, Molecular characterization of fungal populations on the tongue dorsum of institutionalized elderly adults., Oral Dis, 18, 771-777, 2012.05.
49. Furuta M, Ekuni D, Takao S, Suzuki E, Morita M, Kawachi I., Social capital and self-rated oral health among young people, Community Dent Oral Epidemiol, 40, 97-104, 2011.09.
50. Ekuni D, Furuta M, Takeuchi N, Tomofuji T, Morita M., Self-reports of eating quickly are related to a decreased number of chews until first swallow, total number of chews, and total duration of chewing in young people., Arch Oral Biol, in press, 2012.03.