Combined Exposure of Peripubertal Male Rats to the Endocrine-Disrupting Compound Atrazine and
Power–Frequency Electromagnetic Fields Causes Degranulation of Cutaneous Mast Cells: A New Toxic Environmental Hazard?
Vesna Rajkovic • Milica Matavulj • Olle Johansson
Arch Environ Contam Toxicol DOI 10.1007/s00244-010-9477-6
The effects of single and combined treatments of the endocrine-disrupting compound atrazine and the
power–frequency electromagnetic fields (EMFs) were investigated on cutaneous mast cells in juvenile/peripubertal male Wistar rats.
Animals were divided into six groups: (1) 4 h/day exposure to EMFs (50 Hz), (2) 20 mg/kg of body weight (bw) of atrazine, (3) 200 mg/kg bw atrazine, (4) EMFs with 20 mg/kg bw of atrazine, (5) EMFs with 200 mg/kg bw of atrazine, and (6) control. Both the atrazine and the combined treatments, but not the single EMF exposure, increased the number of degranulated mast cells.
Statistically significant differences were demonstrate between the control and both of the combined
treatments (p\0.01 and p\0.001, respectively). Additionally, low and high doses of atrazine combined with the
EMFs were found significantly different when compared to the EMF group alone (both at p\0.001). Considering the biological importance of mast cells in cutaneous immune reactions, future studies should reveal whether combined exposures to chemical and physical environmental agents pose a serious health risk.
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First Published in January 2010
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