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Aging, Mastication, and Malnutrition and Their Associations with Cognitive Disorder: Evidence from Epidemiological Data

  • Shino Suma
  • Michiko Furuta
  • Yoshihisa Yamashita
  • Kenji MatsushitaEmail author
Oral Disease and Nutrition (F Nishimura, Section Editor)
Part of the following topical collections:
  1. Topical Collection on Oral Disease and Nutrition

Abstract

Purpose of Review

As the world’s population ages, the decline of cognitive function and dementia among elderly people are becoming serious problems. Cognitive impairment and dementia affect the quality of life and increase health care costs. Possible risk factors for cognitive impairment and dementia include masticatory dysfunction and malnutrition. Recent findings in epidemiological studies in which the associations of mastication and malnutrition with cognitive disorders in elderly people were investigated are described in this review.

Recent Findings

There have been several longitudinal studies and many cross-sectional studies on these associations. Many studies showed that mastication directly affected cognitive function. Furthermore, mastication has been interrelated to nutritional status, which affects cognitive function.

Summary

Most studies have shown positive associations of them in elderly people. Mastication and the status of nutrition might both affect cognitive function while related to each other.

Keywords

Mastication Malnutrition Cognitive function Dementia Elderly people 

Notes

Funding Information

This study was supported by the Grants-in-Aid for Scientific Research (18K17286) from the Ministry of Education, Science, Sports, and Culture of Japan, Tokyo, Japan. This work was also supported by The Research Funding for Longevity Sciences (29-25) from the National Center for Geriatrics and Gerontology (NCGG), Japan.

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

References

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Shino Suma
    • 1
    • 2
  • Michiko Furuta
    • 1
  • Yoshihisa Yamashita
    • 1
  • Kenji Matsushita
    • 2
    Email author
  1. 1.Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental ScienceKyushu UniversityFukuokaJapan
  2. 2.Department of Oral Diseases ResearchNational Center for Geriatrics and GerontologyObuJapan

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