Oxidative stress in university students during examinations |
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Authors: | Sivonová Monika Zitnanová Ingrid Hlincíková Lucia Skodácek Igor Trebatická Jana Duracková Zdenka |
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Affiliation: | Department of Medical Chemistry, Biochemistry and Clinical Chemistry, Faculty of Medicine, Comenius University, Sasinkova 2, Bratislava 81372, Slovak Republic. |
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Abstract: | Mental stress in psychiatric disease and in daily life contributes to oxidative stress in the body. In this study we investigated a connection between possible psychological stress caused by university undergraduate examinations and oxidative stress experienced by our test subjects. Some parameters of oxidative stress (single strand breaks of DNA in lymphocytes, sensitivity to lipid oxidation and antioxidant status) were studied in medical students on the day of the examination (stress condition) and compared with the same parameters obtained from the same students during the term between two examination periods (non-stress condition). The results show that in the stress condition oxidative damage to DNA and sensitivity to lipid oxidation were significantly increased (p<0.05) when compared with the same parameters in "non-stress" conditions. A significant decrease in plasma antioxidant activity (p<0.05) in students that were under stress was observed. These results suggest that during university examinations students are under increased oxidative stress. |
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