Ayako Nagai

Faculty of Health and Medical Science,Department of Health and DieteticsAssociate Professor
Graduate School of Health Sciences,Doctoral Program in Health SciencesAssociate Professor
Graduate School of Health Sciences,Master's and Doctoral Programs in Health and DieteticsAssociate Professor
Last Updated :2025/10/07

■Researcher basic information

Degree

  • Doctor of Philosophy in Human Life Environment, Nara Women's University, Jan. 2015

Field Of Study

  • Humanities & social sciences, Home economics, lifestyle science

■Career

Career

  • Apr. 2017 - Mar. 2023
    Kyoto Koka Women's University, The Faculty of Health Science The Department of Health and Nutrition
  • Apr. 2014 - Mar. 2017
    Koshien University, College of Nutrition Department of Nutrition
  • Apr. 2009 - Mar. 2014
    Nara Women's University, Faculty of Human Life and Environment Department of Food Science and Nutrition, Assistant Professor
  • 2004 - 2009

Educational Background

  • Apr. 2002 - Mar. 2004, Okayama Prefectural University

■Research activity information

Paper

  • 糖尿病教育入院の効果及びその持続性に対する主観的・客観的評価 -セルフエフィカシー、体格、HbA1c値での検討-               
    2020, [Reviewed]
  • Relationship between umami taste acuity and food selection in Japanse women university students               
    Kubota M; Toda C; Nagai-Moriyama A
    Asia Pacific Journal of Clinical Nutrition, 2018, [Reviewed]
  • 学生向けPEN使用法講習会の一例               
    2018, [Reviewed]
  • Food acceptance and anthropometry in relation to 6-n-propylthiouracil sensitivity in Japanese college women
    Ayako Nagai; Masaru Kubota; Kanako Morinaga; Yukie Higashiyama
    ASIA PACIFIC JOURNAL OF CLINICAL NUTRITION, 2017, [Reviewed]
  • Factors Associated with Childhood Obesity in Asian Countries: A Review of Recent Literature               
    Masaru Kubota; Ayako Nagai
    Recent Advances in Obesity in Children, 2016, [Reviewed]
  • Carnitine in Severely Disabled Patients: Relation to Anthropometric, Biochemical Variables, and Nutritional Intake               
    Yoko Takeda; Masaru Kubota; Hinako Sato; Ayako Nagai; Yukie Higashiyama; Hajime Kin; Chiharu Kawaguchi; Kiyotaka Tomiwa
    Brain & Development, 2015, [Reviewed]
  • Anemia in Female Collegiate Athletes: Association with Hematological Variables, Physical Activity and Nutrition               
    Yuka Yasui; Masaru Kubota; Ayako Nagai; Noriko Matsumoto
    British Journal of Medicine and Medical Research, 2015, [Reviewed]
  • 小学4年生を対象とした味覚教育の実践と影響評価               
    2015, [Reviewed]
  • Longitudinal nutritional assessment in acute lymphoblastic leukemia during treatment
    Yukie Higashiyama; Chiaki Kojima; Masaru Kubota; Ayako Nagai; Ken-ichiro Watanabe; Souichi Adachi; Ikuya Usami
    PEDIATRICS INTERNATIONAL, Aug. 2014, [Reviewed]
  • 小児の栄養評価における急性期蛋白臨床基準範囲設定               
    2014, [Reviewed]
  • 小児期および思春期に発症した痛風に関する全国調査               
    2014, [Reviewed]
  • 重症心身障害児・者へのレボカルニチン投与後のカルニチンおよび生化学的検査値の変化               
    2014, [Reviewed]
  • Normal taste acuity and preference in female adolescents with impaired 6-n-propylthiouracil sensitivity               
    Ayako Nagai; Masaru Kubota; Midori Sakai; Yukie Higashiyama
    Asia Pacific Journal of Clinical Nutrition, 2014, [Reviewed]
  • Alteration of taste acuity in pediatric cancer patients after treatment completion: A cross sectional study using a fliter-paper disc method               
    Ayako Nagai; Masaru Kubota; Souichi Adachi; Ken-ichiro Watanabe; Yasufumi Takeshita
    Food and Nutrition Sciences, 2014, [Reviewed]
  • Past and present symptoms of food allergy in university students               
    Nobue Takamastu; Anri Fujimori; Ayako Nagai; Masaru Kubota; Mitsuhiko Nambu; Kazuhito Tezono
    Clinical Nutrition, 2014, [Reviewed]
  • Longitudinal study of thinness from birth to early childhood: the association with parental thinness               
    Rena Kato; Masaru Kubota; Yukie Higashiyama; Ayako Nagai
    Acta PaediatricaActa, 2014, [Reviewed]
  • Retrospective tracking of young obese children back to birth in Japan: special attention to the relationship with parental obesity
    Rena Kato; Masaru Kubota; Yuka Yasui; Yumi Hayashi; Yukie Higashiyama; Ayako Nagai
    ASIA PACIFIC JOURNAL OF CLINICAL NUTRITION, 2014, [Reviewed]
  • Relationship between Taste Acuity and Fatigue of Stress in Japanese Elementary School Children
    NAGAI Ayako; KUBOTA Masaru; HIGASHIYAMA Yukie
    Eiyo To Shokuryo, 10 Oct. 2013
    Taste acuity is important for ensuring a healthy dietary intake. Fatigue or stress is thought to be one of several factors that may affect taste acuity. However, studies of the role of fatigue or stress in taste acuity, especially in children, have been rather limited. Therefore, we investigated the relationship between taste acuity and fatigue or stress in 58 healthy elementary school children. Acuity for differentiating four basic tastes (sweet, salty, sour and bitter) was evaluated using the filter-paper disc method. Salivary α-amylase was mea-sured as a marker of stress, and fatigue was assessed using the Chalder fatigue scale. When the subjects were divided into four groups on the basis of stress level, we found no difference in the prevalence of acuity disorders for the four tastes. Analysis using the Chalder fatigue scale demonstrated that the prevalence of taste disorders was higher in the fatigue group than in the non-fatigue group, i.e. physical fatigue; sour taste p=0.02, mental fatigue; salty taste p=0.03, total fatigue; sour taste p<0.01, bitter taste p=0.02. The present results indicate the possibility that fatigue in children may impair their acuity in recognizing certain tastes.
  • Adipocytokines in childhood cancer survivors and correlation with metabolic syndrome components
    Chiaki Kojima; Masaru Kubota; Ayako Nagai; Souichi Adachi; Ken-Ichiro Watanabe; Tatsutoshi Nakahata
    Pediatrics International, Aug. 2013, [Reviewed]
  • Assessment of taste acuity by a filter-paper disc method in survivors of childhood acute lymphoblastic leukemia               
    Ayako Nagai; Masaru Kubota; Toshio Heike; Souichi Adachi; Ken-ichiro Watanabe; Midori Shima; Yasufumi Takeshita
    Clinical Nutrition, 2013, [Reviewed]
  • Evaluation of taste acuity by the filter-paper disc in Japanese young women:The relationship with micronutrients status               
    Ayako Nagai; Masaru Kubota; Yuriko Katayama; Chiaki Kojima
    Asia Pacific Journal of Clinical Nutrition, 21, 406-410, 2012, [Reviewed]

MISC

Research Themes

  • Influence of taste alteration to nutritional state in pediatric leukemia patients during treatment
    Grant-in-Aid for Young Scientists (B)
    28 Apr. 2011 - 31 Mar. 2015
    This study aimed to assess taste alteration in pediatric cancer patients. Seventy-three patients who had completed cancer treatment received the gustatory test. Eighty-one healthy children served as controls. There was no significant difference in the thresholds of taste acuity between the patient and control groups. The threshold for tasting salt was significantly higher in the group that had received chemotherapy + radiation and/or hematopoietic stem cell transplantation than in the group that had received chemotherapy only. Since taste acuity is thought to influence nutritional preference, gustatory test results should be considered while deciding nutritional support modalities after treatment completion in pediatric cancer patients.