An international team of scientists has identified a previously unknown layer of tissue in the brain that performs protective functions. It is a thin, delicate membrane only a few cells thick. According to scientists, with their help, immune cells control the brain in case of infections and inflammations. Additionally, this membrane is involved in the removal of waste products from the brain: toxic proteins associated with Alzheimer’s disease and other neurodegenerative diseases.
The new structure sits between two other membranes that protect the brain. Thus, now science already knows four membranes that cover our brain. The study is published in the journal Science.