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Dietary ratio of n-6 to n-3 polyunsaturated fatty acids and periodontal disease in community-based older Japanese: a 3-year follow-up study |
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| Authors: | Iwasaki Masanori Taylor George W Moynihan Paula Yoshihara Akihiro Muramatsu Kanako Watanabe Reiko Miyazaki Hideo |
| Institution: | a Division of Preventive Dentistry, Department of Oral Health Science, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-Dori, Chuo-Ku, Niigata 951-8514, Japan b Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA c Institute for Ageing and Health/Centre for Oral Health Research, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4BW, UK d Department of Health and Nutrition, Faculty of Human Life Studies, University of Niigata Prefecture, 471, Ebigase, Higashiku, Niigata, 950-8680, Japan |
| Abstract: | The longitudinal relationship between dietary n-6 to n-3 PUFAs ratio and periodontal disease in 235 Japanese subjects for whom data were available for the years 2003-2006 was investigated. PUFAs intake was assessed at baseline with a brief-type self-administered diet history questionnaire. Full-mouth periodontal status, measured as the clinical attachment level (CAL), was recorded at baseline and once a year for 3 years. The number of teeth with a change in the loss of CAL ≥3 mm at any site over a year was calculated as ‘periodontal disease events’. Poisson regression analysis was conducted, with dietary n-6 to n-3 PUFAs ratio as the main predictor, to estimate its influence on periodontal disease events.A high dietary n-6 to n-3 PUFAs ratio was significantly associated with greater number of periodontal disease events. The findings suggest the dietary n-6 to n-3 PUFAs ratio is associated with periodontal disease among older Japanese. |
| Keywords: | n-3 Polyunsaturated fatty acids n-6 Polyunsaturated fatty acids Periodontal disease Longitudinal study |
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