Journal of Occupational
Health and Epidemiology
Rafsanjan university Of medical sciences
Volume 12, Issue 2 (Spring 2023)
J Occup Health Epidemiol 2023, 12(2): 123-129 |
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Yekzamani P, Alimohamadi I, Abolghasemi J, Masruri B, Ashtarinezhad A. The Effect of Different Light Intensities on Oxidative Stress Biomarkers: An Experimental Study. J Occup Health Epidemiol 2023; 12 (2) :123-129
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Parvaneh Yekzamani1 
, Iraj Alimohamadi2 , Jamileh Abolghasemi3 , Batol Masruri4 , Azadeh Ashtarinezhad * 5
, Iraj Alimohamadi2 , Jamileh Abolghasemi3 , Batol Masruri4 , Azadeh Ashtarinezhad * 5
1- M.Sc in Occupational Health and Safety, Dept. of Occupational Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
2- Professor, Dept. of Occupational Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
3- Associated Prof., Dept. of Biostatistic, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
4- Ph.D Student in Occupational Health and Safety, Dept. of Occupational Health Engineering, School of medical sciences, University of Tarbiat Modares, Tehran, Iran.
5- Associated Prof., Dept. of Occupational Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. , azadeh_ashtarinezhad@yahoo.com
2- Professor, Dept. of Occupational Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
3- Associated Prof., Dept. of Biostatistic, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
4- Ph.D Student in Occupational Health and Safety, Dept. of Occupational Health Engineering, School of medical sciences, University of Tarbiat Modares, Tehran, Iran.
5- Associated Prof., Dept. of Occupational Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. , azadeh_ashtarinezhad@yahoo.com
Article history
Received: 2022/03/16
Accepted: 2023/04/3
ePublished: 2023/06/28
Accepted: 2023/04/3
ePublished: 2023/06/28
Subject:
Occupational Health
Abstract: (394 Views)
Background: Light can be considered as one of the factors affecting performance, visual comfort, proficiency, and energy efficiency in the workplace. This study aimed to investigate the oxidative stress-induced light intensity in male rats.
Materials and Method: In this experimental study, a total of 32 male rats were randomly divided into four groups of eight (control group: exposure to 150 lux, group 2, 3, and 4 exposure to 300, 5000, and 8000 lux, respectively). Blood samples were collected from each rat before, 7, and 14 days after exposure. Malondialdehyde (MDA) and Total Antioxidant Capacity (TAC) levels were measured as oxidative stress indices. Data were analyzed using SPSS software.
Results: The results showed that the intensity of 8000 lux increased the MDA level and decreased the TAC level 7 and 14 days after exposure. The TAC level decreased in the group exposed to 5000 lux light intensity during 7 and 14 days (0.31±0.065 mmol/L and 0.36±0.077 mmol/L, respectively). The 5000 and 8000 lux light intensities decreased the TAC and caused oxidative stress in male rats after 7 and 14 days, and only the group exposed to 300 lux light intensity can restore TAC to normal levels since the 7th day.
Conclusion: The results of this study showed that light intensity is a significant factor in the development of oxidative stress. It seems that higher light intensities along with 14 days have more effects on the oxidative stress.
Materials and Method: In this experimental study, a total of 32 male rats were randomly divided into four groups of eight (control group: exposure to 150 lux, group 2, 3, and 4 exposure to 300, 5000, and 8000 lux, respectively). Blood samples were collected from each rat before, 7, and 14 days after exposure. Malondialdehyde (MDA) and Total Antioxidant Capacity (TAC) levels were measured as oxidative stress indices. Data were analyzed using SPSS software.
Results: The results showed that the intensity of 8000 lux increased the MDA level and decreased the TAC level 7 and 14 days after exposure. The TAC level decreased in the group exposed to 5000 lux light intensity during 7 and 14 days (0.31±0.065 mmol/L and 0.36±0.077 mmol/L, respectively). The 5000 and 8000 lux light intensities decreased the TAC and caused oxidative stress in male rats after 7 and 14 days, and only the group exposed to 300 lux light intensity can restore TAC to normal levels since the 7th day.
Conclusion: The results of this study showed that light intensity is a significant factor in the development of oxidative stress. It seems that higher light intensities along with 14 days have more effects on the oxidative stress.
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