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Acta Microbiologica et Immunologica Hungarica
Authors: István Nász, Éva Ádám, ANNA Lengyel, K. Ács, Zs. Kasza, M. Vastag, and Cs. Vágvölgyi
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We examined the effects of different shift work schedules and chronic mild stress (CMS) on mood using animal model. The most common international shift work schedules in nursing were applied by three groups of Wistar-rats and a control group with normal light—dark cycle. One subgroup from each group was subjected to CMS. Levels of anxiety and emotional life were evaluated in light—dark box. Differences between the groups according to independent and dependent variables were examined with one- and two-way analysis of variance, with a significance level defined at p < 0.05. Interaction of lighting regimen and CMS was proved to be significant according to time spent in the light compartment and the average number of changes between the light and dark compartments. Results of our examination confirm that the changes of lighting conditions evocate anxiety more prominently than CMS. No significant differences were found between the results of the low rotating group and the control group, supposing that this schedule is the least harmful to health. Our results on the association between the use of lighting regimens and the level of CMS provide evidence that the fast rotating shift work schedule puts the heaviest load on the organism of animals.

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