Researchers Watch Brain's Lining Heal After Head Injury - Neuroscience News“The lining of the brain, with help from the immune system, has a remarkable ability to put itself back together again after injury,” said Dorian McGavern, Ph.D., scientist at the NIH’s National Institute of Neurological Disorders and Stroke and the senior author of the study published in Nature Immunology. “As we learn more about all the cells involved in the repair process, we may be able to identify potential targets for therapy that lead to better outcomes for patients.” The study came about from an observation on MRI scans of adult patients who experienced a concussion or mTBI. Around half of patients with mTBI show evidence of injury to blood vessels in the meninges, which appears on MRI scans as a vascular dye leaking out of the damaged vessels. The meninges are a collection of membranes that line the central nervous system and help protect brain and spinal cord tissue from various forms of injury. Damage to the meninges can cause cell death in underlying brain tissue.