Exposure to 900MHz electromagnetic fields activates the mkp-1/ERK pathway and causes blood-brain barrier damage and cognitive impairment in rats

Exposed rats: Decreased percentage of time in the target quadrant and frequency of crossing platforms (more pronounced in 28 days exposure). Cellular edema and neuronal cell organelle degeneration (28 days exposure). Damaged BBB permeability. Increased expression of mkp-1 (28 days exposure).