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Monostyrene Intake in Albino Rats: Accumulation in Organs and Effects on Growth Performance and Oxidative Stress

Received: 25 January 2016     Accepted: 4 February 2016     Published: 26 February 2016
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Abstract

Monostyrene (MS) residuals are daily migrating from different polystyrene shaping containers to our foods. In the present study, the distribution, accumulation and clearness rate of MS in different organs were done by one oral gavage of sub-lethal dose of 500 mg/kg bwt in male albino rates. Following MS in kidney, liver and brain indicated that the highest concentration peak was reached after 3 hr. Meanwhile, the maximum and minimum levels were detected in kidney (190.6 µg/100g) and brain (12.8 µg/100g), respectively. After 3 hr of styrene administration, the same decline rate was observed in the three organs. The clearness and metabolites rates of MS after 7 hr of administration were 93%, 76.9% and 71.1% in kidney, liver and brain, respectively. Further, this study investigated the effects of different MS at doses (0.1, 0.3 and 1.0 mg/kg) on growth performance parameters included weight gain (WG), relative liver weight, food efficiency ratio (FER), protein efficiency ratio (PER) and on oxidative stress biomarker; malondialdehyde (MDA) in the plasma of male and female albino rats after 12 weeks of feeding. All tested MS concentrations showed significant effects (P >0.05) on WG, FER and PER of either male or female rats compared to the control group. All these indices were more pronounced in both male and female that administrated MS at dose of 1.0 mg MS/kg bwt. Only in female, relative liver weight was affected significantly at doses of 0.3 and 1.0 mg/kg bwt of MS. Significant differences (P >0.05) were found among the experimental groups in malondialdehyde concentration in plasma of male and female rats; but not in nonlinear behavior. MDA concentration increased significantly (P >0.05) in female plasma compared to male at all tested doses. Styrene concentration in male liver after three months at oral administration of 1 mg/kg was 1.72 µg/100g. It is concluded that MS at tested levels had affected growth performance parameters and led to increase oxidative stress which could have significant health risks. Kidney is the main organ responsible for MS elimination. More precaution should be addressed to food packaging industry to control and monitor MS release from PS food contact materials.

Published in International Journal of Nutrition and Food Sciences (Volume 5, Issue 1)
DOI 10.11648/j.ijnfs.20160501.21
Page(s) 72-79
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Monostyrene, Dairy Polystyrene Packages, Oxidative Stress, Malonaldialdehyde, Weight Gain, Food Efficiency, Styrene Distribution in Organs

References
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Cite This Article
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    Mohamed G. El-Ziney, Hana BaAbdoulah, Manal S. Tawfik. (2016). Monostyrene Intake in Albino Rats: Accumulation in Organs and Effects on Growth Performance and Oxidative Stress. International Journal of Nutrition and Food Sciences, 5(1), 72-79. https://doi.org/10.11648/j.ijnfs.20160501.21

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    ACS Style

    Mohamed G. El-Ziney; Hana BaAbdoulah; Manal S. Tawfik. Monostyrene Intake in Albino Rats: Accumulation in Organs and Effects on Growth Performance and Oxidative Stress. Int. J. Nutr. Food Sci. 2016, 5(1), 72-79. doi: 10.11648/j.ijnfs.20160501.21

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    AMA Style

    Mohamed G. El-Ziney, Hana BaAbdoulah, Manal S. Tawfik. Monostyrene Intake in Albino Rats: Accumulation in Organs and Effects on Growth Performance and Oxidative Stress. Int J Nutr Food Sci. 2016;5(1):72-79. doi: 10.11648/j.ijnfs.20160501.21

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  • @article{10.11648/j.ijnfs.20160501.21,
      author = {Mohamed G. El-Ziney and Hana BaAbdoulah and Manal S. Tawfik},
      title = {Monostyrene Intake in Albino Rats: Accumulation in Organs and Effects on Growth Performance and Oxidative Stress},
      journal = {International Journal of Nutrition and Food Sciences},
      volume = {5},
      number = {1},
      pages = {72-79},
      doi = {10.11648/j.ijnfs.20160501.21},
      url = {https://doi.org/10.11648/j.ijnfs.20160501.21},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijnfs.20160501.21},
      abstract = {Monostyrene (MS) residuals are daily migrating from different polystyrene shaping containers to our foods. In the present study, the distribution, accumulation and clearness rate of MS in different organs were done by one oral gavage of sub-lethal dose of 500 mg/kg bwt in male albino rates. Following MS in kidney, liver and brain indicated that the highest concentration peak was reached after 3 hr. Meanwhile, the maximum and minimum levels were detected in kidney (190.6 µg/100g) and brain (12.8 µg/100g), respectively. After 3 hr of styrene administration, the same decline rate was observed in the three organs. The clearness and metabolites rates of MS after 7 hr of administration were 93%, 76.9% and 71.1% in kidney, liver and brain, respectively. Further, this study investigated the effects of different MS at doses (0.1, 0.3 and 1.0 mg/kg) on growth performance parameters included weight gain (WG), relative liver weight, food efficiency ratio (FER), protein efficiency ratio (PER) and on oxidative stress biomarker; malondialdehyde (MDA) in the plasma of male and female albino rats after 12 weeks of feeding. All tested MS concentrations showed significant effects (P >0.05) on WG, FER and PER of either male or female rats compared to the control group. All these indices were more pronounced in both male and female that administrated MS at dose of 1.0 mg MS/kg bwt. Only in female, relative liver weight was affected significantly at doses of 0.3 and 1.0 mg/kg bwt of MS. Significant differences (P >0.05) were found among the experimental groups in malondialdehyde concentration in plasma of male and female rats; but not in nonlinear behavior. MDA concentration increased significantly (P >0.05) in female plasma compared to male at all tested doses. Styrene concentration in male liver after three months at oral administration of 1 mg/kg was 1.72 µg/100g. It is concluded that MS at tested levels had affected growth performance parameters and led to increase oxidative stress which could have significant health risks. Kidney is the main organ responsible for MS elimination. More precaution should be addressed to food packaging industry to control and monitor MS release from PS food contact materials.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Monostyrene Intake in Albino Rats: Accumulation in Organs and Effects on Growth Performance and Oxidative Stress
    AU  - Mohamed G. El-Ziney
    AU  - Hana BaAbdoulah
    AU  - Manal S. Tawfik
    Y1  - 2016/02/26
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijnfs.20160501.21
    DO  - 10.11648/j.ijnfs.20160501.21
    T2  - International Journal of Nutrition and Food Sciences
    JF  - International Journal of Nutrition and Food Sciences
    JO  - International Journal of Nutrition and Food Sciences
    SP  - 72
    EP  - 79
    PB  - Science Publishing Group
    SN  - 2327-2716
    UR  - https://doi.org/10.11648/j.ijnfs.20160501.21
    AB  - Monostyrene (MS) residuals are daily migrating from different polystyrene shaping containers to our foods. In the present study, the distribution, accumulation and clearness rate of MS in different organs were done by one oral gavage of sub-lethal dose of 500 mg/kg bwt in male albino rates. Following MS in kidney, liver and brain indicated that the highest concentration peak was reached after 3 hr. Meanwhile, the maximum and minimum levels were detected in kidney (190.6 µg/100g) and brain (12.8 µg/100g), respectively. After 3 hr of styrene administration, the same decline rate was observed in the three organs. The clearness and metabolites rates of MS after 7 hr of administration were 93%, 76.9% and 71.1% in kidney, liver and brain, respectively. Further, this study investigated the effects of different MS at doses (0.1, 0.3 and 1.0 mg/kg) on growth performance parameters included weight gain (WG), relative liver weight, food efficiency ratio (FER), protein efficiency ratio (PER) and on oxidative stress biomarker; malondialdehyde (MDA) in the plasma of male and female albino rats after 12 weeks of feeding. All tested MS concentrations showed significant effects (P >0.05) on WG, FER and PER of either male or female rats compared to the control group. All these indices were more pronounced in both male and female that administrated MS at dose of 1.0 mg MS/kg bwt. Only in female, relative liver weight was affected significantly at doses of 0.3 and 1.0 mg/kg bwt of MS. Significant differences (P >0.05) were found among the experimental groups in malondialdehyde concentration in plasma of male and female rats; but not in nonlinear behavior. MDA concentration increased significantly (P >0.05) in female plasma compared to male at all tested doses. Styrene concentration in male liver after three months at oral administration of 1 mg/kg was 1.72 µg/100g. It is concluded that MS at tested levels had affected growth performance parameters and led to increase oxidative stress which could have significant health risks. Kidney is the main organ responsible for MS elimination. More precaution should be addressed to food packaging industry to control and monitor MS release from PS food contact materials.
    VL  - 5
    IS  - 1
    ER  - 

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Author Information
  • Department of Dairy Science and Technology, Faculty of Agriculture - Al Shatby, Alexandria University, Alexandria, Egypt

  • Department of Nutrition, King Saud University, Riyadh, Saudi Arabia

  • Department of Food Science and Technology, Faculty of Agriculture - Al Shatby, Alexandria University, Alexandria, Egypt

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