Publications by authors named "Emiko Okada"

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[Association of regularity of dinnertime and elapsed time from dinner to going to bed with subjective sleep quality among locally-living working-age men and women].
Chie Kato, Takashi Kimura, Shigekazu Ukawa, Koshi Nakamura, Emiko Okada

Nihon Koshu Eisei Zasshi· November 2025

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Simulation of the fruit and vegetable intakes meeting the dietary reference intakes of Japanese adults from the National Health and Nutrition Survey.
Mai Matsumoto, Emiko Okada, Xiaoyi Yuan, Chika Okada, Mayu Kikukawa

Sci Rep· October 2025

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Association between nighttime snacking during pregnancy and postpartum depression among community-dwelling pregnant women: a prospective cohort study.
Tohru Kobayashi, Reiji Kojima, Emiko Okada

Eur J Clin Nutr· July 2025

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Association between the Frequency of the Combined Staple, Main, and Side Dishes Examined Using a Validated Questionnaire and the Intake of Nutrients and Food Groups among Young and Middle-Aged Japanese Adults: Results from the DOSANCO Health Study: A Cross-Sectional Study.
Akinori Yaegashi, Emiko Okada, Takashi Kimura, Koshi Nakamura, Shigekazu Ukawa

J Nutr Sci Vitaminol (Tokyo)· June 2025

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Increased fecal glycocholic acid levels correlate with obesity in conjunction with the depletion of archaea: The Dosanco Health Study.
Ryodai Yamamura, Ryo Okubo, Shigekazu Ukawa, Koshi Nakamura, Emiko Okada

J Nutr Biochem· May 2025

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Relationships of the Surface Charge of Low-Density Lipoprotein (LDL) with the Serum LDL-Cholesterol and Atherosclerosis Levels in a Japanese Population: The DOSANCO Health Study.
Koshi Nakamura, Seiji Takeda, Toshihiro Sakurai, Shigekazu Ukawa, Emiko Okada

J Atheroscler Thromb· January 2025

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A study for the genotoxicity assessment of substances containing probiotic candidates in the in vitro TK6 cell micronucleus test: Influence of low pH conditions and antibiotic supplementation on the test results.
Yohei Fujiishi, Wakako Ohyama, Emiko Okada

Genes Environ· December 2024

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Association between frequency of using ready-made meals or eating out during pregnancy and postpartum depression among community-dwelling pregnant women: a prospective cohort study.
Tohru Kobayashi, Reiji Kojima, Emiko Okada

Br J Nutr· September 2024

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Skin Carotenoid Levels Are Associated with Demographic Factors, Body Size, and Fruit and Vegetable Intake in the Japanese Population.
Emiko Okada, Kayo Kurotani, Hidemi Takimoto

Nutrients· July 2024

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Relationship between Household Shared Meal Frequency and Dietary Intake among Men and Women Aged ≥20 Years: Cross-Sectional Analyses Based on 2018 and 2019 National Health and Nutrition Surveys in Japan.
Xiaoyi Yuan, Mai Matsumoto, Emiko Okada, Kentaro Murakami, Satoshi Sasaki

Nutrients· June 2024

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Analysing food groups and nutrient intake in adults who met and did not meet the daily recommended vegetable intake of 350 g: the 2016 National Health and Nutrition Survey in Japan.
Xiaoyi Yuan, Ryoko Tajima, Mai Matsumoto, Aya Fujiwara, Tomoko Aoyama, Chika Okada, Emiko Okada

J Nutr Sci· April 2024

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Time Trends in Income-related Differences in Food Group Intakes: The National Health and Nutrition Survey, Japan in 2010, 2014, and 2018.
Ryoko Tajima, Mai Matsumoto, Aya Fujiwara, Xiaoyi Yuan, Chisa Shinsugi, Emiko Okada

J Epidemiol· February 2024

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A scoping review of dietary assessment questionnaires potentially suitable for assessing habitual dietary intake in the National Health and Nutrition Survey, Japan.
Mai Matsumoto, Kentaro Murakami, Xiaoyi Yuan, Fumi Oono, Riho Adachi, Emiko Okada

J Nutr Sci· February 2024

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[Corrigendum: How accurate are self-reported anthropometrics among the Japanese? A scoping review].
Tomoko Aoyama, Xiaoyi Yuan, Mai Matsumoto, Emiko Okada, Chika Okada

Nihon Koshu Eisei Zasshi· February 2024

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[How accurate are self-reported anthropometrics among the Japanese? A scoping review].
Tomoko Aoyama, Xiaoyi Yuan, Mai Matsumoto, Emiko Okada, Chika Okada

Nihon Koshu Eisei Zasshi· December 2023

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National Nutrition Surveys Applying Dietary Records or 24-h Dietary Recalls with Questionnaires: A Scoping Review.
Emiko Okada, Makiko Nakade, Fumiaki Hanzawa, Kentaro Murakami, Mai Matsumoto

Nutrients· November 2023

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Association Between Moderate Physical Activity Level and Subsequent Frailty Incidence Among Community-Dwelling Older Adults: A Population-Based Cohort Study.
Wenjing Zhao, Shigekazu Ukawa, Sachiko Sasaki, Emiko Okada, Tomoko Kishi

J Aging Phys Act· October 2023

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Nutritional Adequacy Assessment of the Japanese Diet Using the Number of Dishes Compared to Existing Dietary Diversity Indices: A Cross-Sectional Analysis from the 2012 National Health and Nutrition Survey, Japan.
Saeka Takabayashi, Emiko Okada, Takumi Hirata, Hidemi Takimoto, Mieko Nakamura

J Nutr Sci Vitaminol (Tokyo)· July 2023

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[Association between father's involvement with his wife/partner during pregnancy and father-to-infant bonding failure].
Kaki Tanaka, Emiko Okada, Takumi Hirata, Takashi Kimura, Akiko Tamakoshi

Nihon Koshu Eisei Zasshi· June 2023

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Validation of Dietary Intake Estimated by Web-Based Dietary Assessment Methods and Usability Using Dietary Records or 24-h Dietary Recalls: A Scoping Review.
Utako Murai, Ryoko Tajima, Mai Matsumoto, Yoko Sato, Saki Horie, Emiko Okada

Nutrients· April 2023

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Shorter sleep time relates to lower human defensin 5 secretion and compositional disturbance of the intestinal microbiota accompanied by decreased short-chain fatty acid production.
Yu Shimizu, Ryodai Yamamura, Yuki Yokoi, Tokiyoshi Ayabe, Shigekazu Ukawa, Emiko Okada

Gut Microbes· March 2023

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Micronucleus test using formalin-fixed rat glandular stomach and colon.
Wakako Ohyama, Yohei Fujiishi, Emiko Okada, Kazunori Narumi, Makoto Hayashi

Genes Environ· January 2023

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Monitoring the Consumption of Vegetables among OECD Countries, Including Japan.
Hidemi Takimoto, Mai Matsumoto, Ryoko Tajima, Xiaoxi Yuan, Tomoko Aoyama, Emiko Okada

J Nutr Sci Vitaminol (Tokyo)· November 2022

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Association between Food Sources of Free Sugars and Weight Status among Children and Adolescents in Japan: The 2016 National Health and Nutrition Survey, Japan.
Aya Fujiwara, Emiko Okada, Mai Matsumoto, Ryoko Tajima, Xiaoyi Yuan

Nutrients· September 2022

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Trends in Food Group Intake According to Body Size among Young Japanese Women: The 2001-2019 National Health and Nutrition Survey.
Mai Matsumoto, Ryoko Tajima, Aya Fujiwara, Xiaoyi Yuan, Emiko Okada

Nutrients· September 2022

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