Photo by Robina Weermeijer on Unsplash -- Gliosis describes changes in glia that result from damage to the central nervous system. Researchers can use PET scans (positron emission tomography) to measure the extent of glios...

A 2017 article by Sophie E. Holmes and colleagues in the journal Biological Psychiatry reports that people with major unipolar depression, especially those with suicidal thoughts, have higher levels of the inflammatory mar...