- 著者
- Catherine Sauvaget Naomi Allen Mikiko Hayashi Elizabeth Spencer Jun Nagano
- 出版者
- 日本疫学会
- 雑誌
- Journal of Epidemiology (ISSN:09175040)
- 巻号頁・発行日
- vol.12, no.5, pp.394-401, 2002 (Released:2007-11-30)
- 参考文献数
- 23
- 被引用文献数
- 9 28
We evaluated the performance of a 22-item food frequency questionnaire (FFQ) administered in 1980-81 to 3, 005 members of the Adult Health Study cohort, part of the Life Span Study. The questionnaire was compared with the records of a 24-hour dietary survey that was performed in 1984-85. From the dietary records, food and nutrient intakes were estimated. The association between the two measures of dietary intake was assessed using Mantel-Haenszel chi-square test and the Spearman's rank correlation coefficient. The frequency of food intake as measured by the FFQ was linearly associated with food intake as measured by the 24-hour diary, with the exception of dry fish. The highest correlations were observed for beverages, including coffee (0.51), milk (0.32) and black tea (0.26). Foods such as fruit (0.27), confectionery (0.23), rice (0.34) and bread (0.28) were also moderately correlated. These results show that, with the exception of dry fish, the FFQ is moderately correlated with the 24hour diary and can be used to assess diet intake in this cohort. J Epidemiol2002;12:394-401.
- 著者
- Eri Matsubara Kuniyoshi Shimizu Mio Fukagawa Yuka Ishizi Chikako Kakoi Tomoko Hatayama Jun Nagano Tsuyoshi Okamoto Koichiro Ohnuki Ryuichiro Kondo
- 出版者
- バイオメディカルリサーチプレス
- 雑誌
- Biomedical Research (ISSN:03886107)
- 巻号頁・発行日
- vol.33, no.5, pp.299-308, 2012 (Released:2012-11-01)
- 参考文献数
- 34
- 被引用文献数
- 1 6
The perennial grass Vetiveria zizanioides (vetiver) is mainly cultivated for its fragrant essential oil. Although the components of the oil and their biological activities have been studied extensively, the effect of the volatiles emitted from the roots of V. zizanioides on humans has so far remained unexplored. We investigated the effects of volatile compounds emitted from the cut roots of V. zizanioides (1.0 g, low-dose conditions; 30 g, high-dose conditions) on individuals during a visual display terminal task. Participants who breathed the volatile compounds emitted under low-dose conditions showed faster reaction times and stimulation of sympathetic nerve activity as measured by electrocardiography. These effects were not observed under high-dose conditions. The total amounnt of volatiles emitted during the experiment was 0.25 μg under low-dose conditions and 1.35 &me;g under high-dose conditions. These findings indicate that volatile compounds emitted from the roots of V. zizanioides under low-dose conditions may have helped subjects to maintain performance in visual discrimination tasks while maintaining high sympathetic nerve system activity.