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Effect of coking oven emissions on level of serum oxidation-reduction and peripheral white blood cellular ras P21 and P53 in coke oven workers / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases ; (12): 212-214, 2008.
Article in Chinese | WPRIM | ID: wpr-304033
ABSTRACT
<p><b>OBJECTIVE</b>To explore the adverse effects of coking oven emissions (COE) on the serum oxidation-reduction and relevant genes in the exposed workers.</p><p><b>METHODS</b>Fifty-six coke oven workers and forty controls were investigated. Serum Malondialdehyde (MDA) levels and the activities of total superoxide dismutases (T-SOD) were measured by spectrophotometrical method. Immunohistochemical method was used to assess the P21 and P53 levels in peripheral white blood cells.</p><p><b>RESULTS</b>Compared with controls, the individuals exposed to COE had significantly increased levels of serum MDA [(5.30 +/- 2.29) nmol/mL, P < 0.01] and markedly decreased levels of T-SOD [(100.04 +/- 10.75) NU/mL]. Additionally, the median levels of P53 and P21 were markedly increased in the exposed individuals compared with the controls (21.4% and 23.2%, respectively, all P < 0.05).</p><p><b>CONCLUSION</b>The findings indicate that occupational exposure to COE causes the rise of serum oxidation-reduction MDA and the fall of T-SOD, and increasing expression levels of P21 and P53 proteins before the occurrence of apparent clinical symptoms.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Oxidation-Reduction / Superoxide Dismutase / Blood / Lymphocytes / Case-Control Studies / Occupational Exposure / Tumor Suppressor Protein p53 / Proto-Oncogene Proteins p21(ras) / Coke / Air Pollutants, Occupational Type of study: Observational study Limits: Adult / Female / Humans / Male Language: Chinese Journal: Chinese Journal of Industrial Hygiene and Occupational Diseases Year: 2008 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Oxidation-Reduction / Superoxide Dismutase / Blood / Lymphocytes / Case-Control Studies / Occupational Exposure / Tumor Suppressor Protein p53 / Proto-Oncogene Proteins p21(ras) / Coke / Air Pollutants, Occupational Type of study: Observational study Limits: Adult / Female / Humans / Male Language: Chinese Journal: Chinese Journal of Industrial Hygiene and Occupational Diseases Year: 2008 Type: Article