Unique ID issued by UMIN | UMIN000017165 |
---|---|
Receipt number | R000019908 |
Scientific Title | Effect of beta-cryptoxanthin on students during pharmacy practice |
Date of disclosure of the study information | 2015/04/27 |
Last modified on | 2018/03/17 19:20:43 |
Effect of beta-cryptoxanthin on students during pharmacy practice
Anti-stress effect of beta-cryptoxanthin
Effect of beta-cryptoxanthin on students during pharmacy practice
Anti-stress effect of beta-cryptoxanthin
Japan |
Stress
Not applicable | Adult |
Others
NO
The purpose is to measure stress symptoms in students during pharmacy practice and to evaluate the efficacy of Japanese mandarin orange juice containing beta-cryptoxanthin in suppressing chronic stress, by measuring the salivary amylase activity and subjective stress.
Efficacy
Exploratory
Pragmatic
Not applicable
Alteration in salivary amylase activity in students during pharmacy practice for 10 days
Physical condition, State-trait anxiety inventory (STAI) test, Sleeping time, Replying to a questionnaire (subjective stress, achievement emotion)
Interventional
Parallel
Randomized
Individual
Double blind -all involved are blinded
Placebo
YES
YES
Central registration
2
Prevention
Food |
Japanese mandarin orange juice containing beta-cryptoxanthin
Placebo orange juice
22 | years-old | <= |
30 | years-old | >= |
Male and Female
Students of pharmaceutical sciences in the 5th grade, non-smoker.
Obtained written informed consent from the student before participation.
Possible to take a pack of Japanese mandarin orange juice (125 ml) for 20days.
Possible to check salivary amylase activity two times daily for 20 days.
Taking tranquilizer(s)
Smoker
Allergy against orange
Diagnosed as inadequate to participate in the study by a doctor
20
1st name | |
Middle name | |
Last name | Keiko Unno |
University of Shizuoka
School of Pharmaceutical Sciences
52-1 Yada, Suruga-ku, Shizuoka
054-264-5731
kendaiunno@gmail.com
1st name | |
Middle name | |
Last name | Keiko Unno |
University of Shizuoka
School of Pharmaceutical Sciences
52-1 Yada, Suruga-ku, Shizuoka
054-264-5731
kendaiunno@gmail.com
University of Shizuoka
University of Shizuoka
Local Government
Japan
NO
静岡県立大学 University of Shizuoka
2015 | Year | 04 | Month | 27 | Day |
Published
Beta-cryptoxanthin (CRX) is a provitamin A and a potent antioxidant that is abundant in Satsuma mandarin orange, which is the most popular fruit in Japan. The anti-stress effect of CRX on humans was evaluated in fifth-year university students during both routine daily life at the university and at pharmacy practice. Salivary amylase activity (sAA) was measured as a marker of sympathetic nervous system activity. In the placebo-group, sAA in the evening (post-practice sAA) tended to be higher than sAA in the morning (pre-practice sAA) during both routine daily life at the university and during pharmacy practice. In the CRX-group, the increase of post-practice sAA was suppressed in females. These results suggested that CRX has an anti-stress effect, at least, in females.
Completed
2015 | Year | 03 | Month | 27 | Day |
2015 | Year | 04 | Month | 27 | Day |
2015 | Year | 05 | Month | 30 | Day |
2016 | Year | 05 | Month | 30 | Day |
2016 | Year | 05 | Month | 30 | Day |
2016 | Year | 05 | Month | 30 | Day |
YAKUGAKU ZASSHI 136(9), 1255-1262, 2016
2015 | Year | 04 | Month | 17 | Day |
2018 | Year | 03 | Month | 17 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000019908