SARS_CoV_2, the virus responsible for COVID-19, can directly enter the nervous system. The virus can infect the brain, causing alterations in blood vessels and directly disrupt oxygen supply to the organ.
Gene expression patterns in four regions of the prefrontal cortex are distinctly different in those who have been diagnosed with PTSD compared to those who have not. Major differences were seen in interneurons, which inhibit the immune system and microglia in the central nervous system. Findings shed light on why women are more likely to experience PTSD and compound a link between post-traumatic stress and a dampening of the immune system.
Animal study reveals the formation of amyloid plaques drives brain tissue loss and neurodegeneration in Alzheimer's disease. However, lithium, a drug commonly used to treat bipolar disorder, reduces the life-shortening effects of the loss.
Using MRI neuroimaging, researchers develop a new method of quantifying brain tissue volume. The new method could provide an additional way to track the progress of multiple sclerosis and other neurological diseases.