Relationship between olfactory and gustatory functions: The Iwaki health promotion project 2019

Kazutaka Yamauchi, Daisuke Matsushita, Nami Shimizume, Reiko Kudo, Yusuke Kohama, Akiko Miyazaki, Hiromu Taguchi, Takashi Hirao, Fuminori Kawabata, Yuko Kawabata, Keisuke Sanematsu, Shingo Takai, Junichi Yamazoe, Kenichi Anabuki, Ken Aoshima, Yoshiko Takahashi, Shinichi Goto, Akira Sasaki, Noriatsu Shigemura, Atsushi Matsubara

研究成果: ジャーナルへの寄稿学術誌査読


Objective: Olfactory and gustatory functions are important sensory aspects in humans. Although they are believed to influence each other, their interrelationship is not well understood. In this study, we aimed to investigate the relationship between the olfactory and gustatory functions based on the results of a large-scale epidemiological study (Iwaki Health Promotion Project) of the general local population. Methods: We analyzed 565 participants who underwent taste and olfactory tests in the 2019 Iwaki Project. Gustatory function was tested for four taste qualities (sweet, sour, salty, and bitter) using whole-mouth taste tests. Olfactory function was tested using the University of Pennsylvania Smell Identification Test modified for Japanese (UPSIT-J). We evaluated sex-related differences between olfactory and gustatory functions and the effects of various factors on olfactory identification using multivariate analysis. Furthermore, we compared the percentage of accurate UPSIT-J responses between the normal and hypogeusia groups. We also analyzed the effects of taste and olfactory functions on eating. Results: Olfactory and gustatory functions were lower in men than in women. Among the four taste qualities, salty taste was the most closely associated with olfactory identification ability, with lower olfactory scores of salty taste in the hypogeusia group than in the normal group. Moreover, the hyposmia group had higher daily salt intake than the normal olfaction group in women. Conclusion: These results suggest that olfactory identification tests may be useful in predicting elevated salt cognitive thresholds, leading to a reduction in salt intake, which may contribute to hypertension prevention.

ジャーナルAuris Nasus Larynx
出版ステータス出版済み - 6月 2024

!!!All Science Journal Classification (ASJC) codes

  • 外科
  • 耳鼻咽喉科学


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