Effects of radiofrequency radiation exposure on blood-brain barrier permeability in male and female rats
This rat study tested whether acute exposure to 0.9 and 1.8 GHz continuous-wave radiofrequency radiation alters blood-brain barrier permeability. Using Evans-blue/albumin as a tracer, the authors report no BBB leakage in exposed female rats but a significant increase in albumin in exposed male rat brains versus sham. The authors interpret this as suggesting BBB/vascular permeability changes in males at SAR levels stated to be below international limits.
Key points
- Male and female Wistar albino rats were exposed to 0.9 and 1.8 GHz continuous-wave RFR for 20 minutes under anesthesia.
- Reported SARs were 4.26 mW/kg at 0.9 GHz and 1.46 mW/kg at 1.8 GHz.
- BBB permeability was assessed via Evans-blue dye bound to serum albumin measured spectrophotometrically.
- Female rats showed no albumin extravasation after RFR exposure.
- Male rats showed a significant increase in brain albumin compared with sham-exposed males.
- The authors suggest the findings indicate sex-specific BBB/vascular permeability effects under these exposure conditions.
Referenced studies & papers
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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