Junko Ishihara

Summary

Affiliation: National Cancer Center
Country: Japan

Publications

  1. pmc Validity of a self-administered food frequency questionnaire (FFQ) and its generalizability to the estimation of dietary folate intake in Japan
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5 1 1 Tsukiji, Tokyo, 104 0051, Japan
    Nutr J 4:26. 2005
  2. ncbi request reprint Demographics, lifestyles, health characteristics, and dietary intake among dietary supplement users in Japan
    Junko Ishihara
    Cancer Information and Epidemiology Division, National Cancer Center Research Institute, Tokyo, Japan
    Int J Epidemiol 32:546-53. 2003
  3. doi request reprint Isoflavone, polymorphisms in estrogen receptor genes and breast cancer risk in case-control studies in Japanese, Japanese Brazilians and non-Japanese Brazilians
    Motoki Iwasaki
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104 0045, Japan
    Cancer Sci 100:927-33. 2009
  4. pmc Use of vitamin supplements and risk of total cancer and cardiovascular disease among the Japanese general population: a population-based survey
    Azusa Hara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo Ku, Tokyo 104 0045, Japan
    BMC Public Health 11:540. 2011
  5. doi request reprint Dietary isoflavone intake, polymorphisms in the CYP17, CYP19, 17beta-HSD1, and SHBG genes, and risk of breast cancer in case-control studies in Japanese, Japanese Brazilians, and non-Japanese Brazilians
    Motoki Iwasaki
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104 0045, Japan
    Nutr Cancer 62:466-75. 2010
  6. doi request reprint Dietary calcium, vitamin D, and the risk of colorectal cancer
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    Am J Clin Nutr 88:1576-83. 2008
  7. ncbi request reprint Low intake of vitamin B-6 is associated with increased risk of colorectal cancer in Japanese men
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5 1 1 Tsukiji, Chuo Ku, Tokyo 104 0045, Japan
    J Nutr 137:1808-14. 2007
  8. ncbi request reprint Validity of a self-administered food frequency questionnaire for middle-aged urban cancer screenees: comparison with 4-day weighed dietary records
    Ribeka Takachi
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    J Epidemiol 21:447-58. 2011
  9. ncbi request reprint Impact of the revision of a nutrient database on the validity of a self-administered food frequency questionnaire (FFQ)
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    J Epidemiol 16:107-16. 2006
  10. ncbi request reprint Food frequency questionnaire is a valid tool in the nutritional assessment of Brazilian women of diverse ethnicity
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo Ku, Tokyo, Japan
    Asia Pac J Clin Nutr 18:76-80. 2009

Collaborators

Detail Information

Publications29

  1. pmc Validity of a self-administered food frequency questionnaire (FFQ) and its generalizability to the estimation of dietary folate intake in Japan
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5 1 1 Tsukiji, Tokyo, 104 0051, Japan
    Nutr J 4:26. 2005
    ..The objectives of our study were to 1) validate a FFQ for estimating folate intake, and to identify the foods that contribute to inter-individual variation of folate intake in the Japanese population...
  2. ncbi request reprint Demographics, lifestyles, health characteristics, and dietary intake among dietary supplement users in Japan
    Junko Ishihara
    Cancer Information and Epidemiology Division, National Cancer Center Research Institute, Tokyo, Japan
    Int J Epidemiol 32:546-53. 2003
    ..The objective of our study was to investigate the association between supplement use and demographics, lifestyles, health characteristics, and dietary intake in a population-based cohort study in Japan...
  3. doi request reprint Isoflavone, polymorphisms in estrogen receptor genes and breast cancer risk in case-control studies in Japanese, Japanese Brazilians and non-Japanese Brazilians
    Motoki Iwasaki
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104 0045, Japan
    Cancer Sci 100:927-33. 2009
    ..21, respectively). We found no remarkable difference for the other four polymorphisms. Our findings suggest that polymorphisms in the estrogen receptor beta gene may modify the association between isoflavone intake and breast cancer risk...
  4. pmc Use of vitamin supplements and risk of total cancer and cardiovascular disease among the Japanese general population: a population-based survey
    Azusa Hara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo Ku, Tokyo 104 0045, Japan
    BMC Public Health 11:540. 2011
    ..We examined whether vitamin supplement use patterns affect cancer and CVD risk in a population-based cohort study in Japan...
  5. doi request reprint Dietary isoflavone intake, polymorphisms in the CYP17, CYP19, 17beta-HSD1, and SHBG genes, and risk of breast cancer in case-control studies in Japanese, Japanese Brazilians, and non-Japanese Brazilians
    Motoki Iwasaki
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104 0045, Japan
    Nutr Cancer 62:466-75. 2010
    ..06-0.77). We found no remarkable difference for the rs743572 and rs10046 polymorphisms. Our findings suggest that polymorphisms in the 17beta-HSD1 and SHBG genes may modify the association between isoflavone intake and breast cancer risk...
  6. doi request reprint Dietary calcium, vitamin D, and the risk of colorectal cancer
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    Am J Clin Nutr 88:1576-83. 2008
    ..Calcium and vitamin D have a potential protective effect against colorectal cancer...
  7. ncbi request reprint Low intake of vitamin B-6 is associated with increased risk of colorectal cancer in Japanese men
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5 1 1 Tsukiji, Chuo Ku, Tokyo 104 0045, Japan
    J Nutr 137:1808-14. 2007
    ..Our results support previous evidence that low vitamin B-6 intake is associated with an increased risk of colorectal cancer. In particular, a higher intake of vitamin B-6 appears beneficial in men with higher alcohol intake...
  8. ncbi request reprint Validity of a self-administered food frequency questionnaire for middle-aged urban cancer screenees: comparison with 4-day weighed dietary records
    Ribeka Takachi
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    J Epidemiol 21:447-58. 2011
    ..We examined the validity of ranking individuals according to level of dietary consumption, as estimated by this FFQ, among an urban population in Japan...
  9. ncbi request reprint Impact of the revision of a nutrient database on the validity of a self-administered food frequency questionnaire (FFQ)
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    J Epidemiol 16:107-16. 2006
    ..Here, we investigated the effect of this revision of the nutrient database on the validity of a food frequency questionnaire (FFQ) used to estimate nutrient intake in the Japan Public Health Center-based prospective Study (JPHC Study)...
  10. ncbi request reprint Food frequency questionnaire is a valid tool in the nutritional assessment of Brazilian women of diverse ethnicity
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo Ku, Tokyo, Japan
    Asia Pac J Clin Nutr 18:76-80. 2009
    ..In conclusion, validity of the FFQ for estimation of the intake of selected nutrients among Brazilian women with varied ethnic background was moderately high...
  11. ncbi request reprint Reproducibility and validity of dietary patterns assessed by a food frequency questionnaire used in the 5-year follow-up survey of the Japan Public Health Center-Based Prospective Study
    Akiko Nanri
    Department of Epidemiology and Prevention, International Clinical Research Center, National Center for Global Health and Medicine, Tokyo, Japan
    J Epidemiol 22:205-15. 2012
    ..We assessed the reproducibility and validity of dietary patterns identified by a food frequency questionnaire (FFQ) used in the 5-year follow-up survey of the Japan Public Health Center-Based Prospective Study (JPHC Study)...
  12. doi request reprint Validity of a self-administered food-frequency questionnaire in the estimation of amino acid intake
    Junko Ishihara
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5 1 1 Tsukiji, Chuo Ku, Tokyo 104 0051, Japan
    Br J Nutr 101:1393-9. 2009
    ..33 for men and 0.25 for women in the internal population, and 0.40 for men and 0.30 for women in the external population. In conclusion, the validity of the FFQ in estimating amino acid intake was low to moderate...
  13. ncbi request reprint Dietary fiber intake and subsequent risk of colorectal cancer: the Japan Public Health Center-based prospective study
    Tetsuya Otani
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    Int J Cancer 119:1475-80. 2006
    ..Q5), 2.3; 95% confidence interval, 1.0-5.2). In conclusion, although a minor effect cannot be ruled out, the results did not support a hypothesis of a dose-dependent protective effect of dietary fiber intake against colorectal cancer...
  14. ncbi request reprint Validity and reproducibility of a self-administered food frequency questionnaire in the JPHC Study Cohort II: study design, participant profile and results in comparison with Cohort I
    Junko Ishihara
    Cancer Information and Epidemiology Division, National Cancer Center Research Institute
    J Epidemiol 13:S134-47. 2003
    ..Correlation coefficients for reproducibility ranged from 0.42 to 0.82, similar to those of Cohort I...
  15. doi request reprint Consumption of sodium and salted foods in relation to cancer and cardiovascular disease: the Japan Public Health Center-based Prospective Study
    Ribeka Takachi
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    Am J Clin Nutr 91:456-64. 2010
    ....
  16. doi request reprint Dietary calcium intake and risks of stroke, its subtypes, and coronary heart disease in Japanese: the JPHC Study Cohort I
    Mitsumasa Umesawa
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, 5 1 1 Tsukiji, Chuo Ku, Tokyo 104 0045, Japan
    Stroke 39:2449-56. 2008
    ....
  17. ncbi request reprint Folate, vitamin B6, vitamin B12, and vitamin B2 intake, genetic polymorphisms of related enzymes, and risk of colorectal cancer in a hospital-based case-control study in Japan
    Tetsuya Otani
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tsukjii, Tokyo
    Nutr Cancer 53:42-50. 2005
    ..02) with colorectal cancer, although the other polymorphisms did not interact with any nutrient intake. In conclusion, the study did not support the existing hypothesis of gene-nutrient interaction in colorectal carcinogenesis...
  18. doi request reprint Dietary isoflavone intake and breast cancer risk in case-control studies in Japanese, Japanese Brazilians, and non-Japanese Brazilians
    Motoki Iwasaki
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
    Breast Cancer Res Treat 116:401-11. 2009
    ..In addition, women may benefit from risk reduction if they consume at least moderate amounts of isoflavones...
  19. ncbi request reprint Validity of a self-administered food frequency questionnaire used in the 5-year follow-up survey of the JPHC Study Cohort I to assess dietary fiber intake: comparison with dietary records
    Satoshi Sasaki
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East, Kashiwa, Chiba, Japan
    J Epidemiol 13:S106-14. 2003
    ..The FFQ can be used for ranking individuals for dietary fiber intakes in epidemiologic studies, despite the difficulty in estimating mean intake...
  20. ncbi request reprint Validity of the self-administered food frequency questionnaire used in the 5-year follow-up survey for the JPHC Study to assess folate, vitamin B6 and B12 intake: comparison with dietary records and blood level
    Hiroyasu Iso
    Department of Public Health Medicine, Institute of Community Medicine, University of Tsukuba
    J Epidemiol 13:S98-101. 2003
    ....
  21. ncbi request reprint Intake of folate, vitamin B6 and vitamin B12 and the risk of CHD: the Japan Public Health Center-Based Prospective Study Cohort I
    Junko Ishihara
    Department of Public Health Medicine, University of Tsukuba, Ibaraki, Japan
    J Am Coll Nutr 27:127-36. 2008
    ..To investigate the association of dietary folate, vitamin B(6) (VB(6)) and vitamin B(12) (VB(12)) with the risk of coronary heart disease among middle-aged persons...
  22. ncbi request reprint Validity of a self-administered food frequency questionnaire used in the 5-year follow-up survey of the JPHC Study to assess selenium intake: comparison with dietary records and blood levels
    Kanae Karita
    Department of Hygiene and Public Health, Telkyo University School of Medicine
    J Epidemiol 13:S92-7. 2003
    ..In this population, the serum Se level was not a good biomarker for estimated Se intake...
  23. ncbi request reprint Food and nutrient intakes assessed with dietary records for the validation study of a self-administered food frequency questionnaire in JPHC Study Cohort I
    Satoshi Sasaki
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East, Kashiwa, Chiba, Japan
    J Epidemiol 13:S23-50. 2003
    ..001)...
  24. ncbi request reprint Validity of a self-administered food frequency questionnaire in the 5-year follow-up survey of the JPHC Study Cohort I to assess sodium and potassium intake: comparison with dietary records and 24-hour urinary excretion level
    Satoshi Sasaki
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East, Kashiwa, Chiba, Japan
    J Epidemiol 13:S102-5. 2003
    ..48 and 0.18 in men and women, respectively in conclusion, a weak correlation was observed both for sodium and potassium after energy and creatinine adjustment in men, whereas no meaningful correlation was observed in women...
  25. ncbi request reprint Reproducibility of a self-administered food frequency questionnaire used in the 5-year follow-up survey of the JPHC Study Cohort I to assess food and nutrient intake
    Satoshi Sasaki
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East, Kashiwa, Chiba, Japan
    J Epidemiol 13:S115-24. 2003
    ..The results suggest that the reproducibility of the FFQ used for the JPHC study was moderate to high in most of the nutrient and food groups...
  26. ncbi request reprint Intake of fish and n3 fatty acids and risk of coronary heart disease among Japanese: the Japan Public Health Center-Based (JPHC) Study Cohort I
    Hiroyasu Iso
    Department of Public Health Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki Ken, Japan
    Circulation 113:195-202. 2006
    ..It is uncertain whether a high frequency or large amount of fish intake, as is the case in Japan, further reduces the risk...
  27. ncbi request reprint Association of dietary intake of soy, beans, and isoflavones with risk of cerebral and myocardial infarctions in Japanese populations: the Japan Public Health Center-based (JPHC) study cohort I
    Yoshihiro Kokubo
    Department of Preventive Cardiology, National Cardiovascular Center, 5 7 1, Fujishiro dai, Suita, Osaka, 565 8565 Japan
    Circulation 116:2553-62. 2007
    ..We investigated the association of soy and isoflavone intake with risk of cerebral and myocardial infarctions (CI and MI)...
  28. ncbi request reprint Fruit and vegetable intake and risk of total cancer and cardiovascular disease: Japan Public Health Center-Based Prospective Study
    Ribeka Takachi
    Department of Clinical Epidemiology, Tohoku University Graduate School of Medicine, Sendai, Japan
    Am J Epidemiol 167:59-70. 2008
    ..16) for vegetables. This prospective cohort study demonstrated that, in the Japanese population, consumption of fruit is associated with lower risk of CVD, whereas fruit or vegetables may not be associated with lower risk of total cancer...
  29. ncbi request reprint Self-administered food frequency questionnaire used in the 5-year follow-up survey of the JPHC Study: questionnaire structure, computation algorithms, and area-based mean intake
    Satoshi Sasaki
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East, Kashiwa, Chiba, Japan
    J Epidemiol 13:S13-22. 2003
    ..The intakes of cooking oil, cooking salt (sodium), and salt in noodle-soup were estimated from the questions of relative preference of oil, salt, and noodle-soup...