Pernicious effects of long-term, continuous 900-MHz electromagnetic field throughout adolescence on hippocampus morphology, biochemistry and pyramidal neuron numbers in 60-day-old Sprague Dawley male rats

Exposed rats: Increased numbers of pyknotic neurons with black or dark blue cytoplasm. Decreased pyramidal neurons. Increased malondialdehyde and glutathione levels. Decreased catalase levels.