دورية أكاديمية
Investigating the effect of different light intensities in work environments on Circadian rhythm using animal model
| العنوان: | Investigating the effect of different light intensities in work environments on Circadian rhythm using animal model |
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| المؤلفون: | Parvaneh Yekzamani, Azadeh Ashtarinezhad, Jamileh Aboulghasemi, Batol Masruri, Maedeh Arabian, Iraj Alimohammadi |
| المصدر: | طب کار, Vol 14, Iss 1, Pp 19-28 (2022) |
| بيانات النشر: | Shahid Sadoughi University of Medical Science, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Special situations and conditions |
| مصطلحات موضوعية: | artificial light, cortisol, melatonin, circadian rhythms, work environment, Special situations and conditions, RC952-1245 |
| الوصف: | Introduction: light intensity and duration are physical factors that affect hormone secretion and circadian rhythms. This study aimed to determine the effects of various light intensities on serum melatonin and cortisol levels. Materials and methods: This experimental study was carried out on 32 male rats: Group 1 as the control group, received a brightness of 150 lux, and groups 2, 3, and 4 as the exposure groups received light intensities of 300, 5000, and 8000 lux for 14 days, respectively. To evaluate hormone levels, blood samples were taken on before and after 7 and 14 days of exposure. Then cortisol and melatonin levels were determined by ELISA. Data were analyzed using SPSS. Results: The results showed that cortisol levels after seven days of exposure in the groups exposed to the light intensity of 300, 5000, and 8000 lux increased significantly compared to the control group, and after 14 days, the level of cortisol in the groups. Exposure to a light intensity of 5000 and 8000 lux increased significantly compared to the control. Also, melatonin levels in the group of rats exposed to the light intensity of 5000 lux and 8000 lux after 7 and 14 days of exposure compared to the control significantly decreased. Conclusion: Increased light intensity is associated with increased melatonin suppression and cortisol levels. It is suggested that more studies be done to prove the effect of different light intensities on changes in the levels of these hormones at varying hours of the day. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Persian |
| تدمد: | 2251-7189 2251-8274 |
| Relation: | http://tkj.ssu.ac.ir/article-1-1164-en.html; https://doaj.org/toc/2251-7189; https://doaj.org/toc/2251-8274 |
| URL الوصول: | https://doaj.org/article/5bf46a97dd4749938b535cc8653305d0 |
| رقم الأكسشن: | edsdoj.5bf46a97dd4749938b535cc8653305d0 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22517189 22518274 |
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