Key Highlights
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A study of patients with severe mania found that their blood platelets show clear signs of immune system activation and inflammation, specifically pointing to problems with a key pathway (MHC Class I) that helps the body recognize viruses. This provides strong biological evidence that immune system dysfunction, possibly linked to latent viruses or autoimmunity, plays a role in bipolar disorder, opening new avenues for research and potential treatments.
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A large-scale brain imaging study found that people with PTSD have altered connections between two key emotional memory centers—the amygdala and the hippocampus—even when their brain is at rest. This finding helps explain the neurological basis of PTSD symptoms like heightened fear and intrusive memories, and it comes from a major global collaboration, making the results more reliable and significant for the field.
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Researchers discovered that a specific protein (PECAM) is essential for white blood cells to migrate into the eye during a model of infectious eye inflammation. Blocking this pathway could be a new targeted treatment strategy, potentially avoiding the side effects of current broad immunosuppressive therapies like steroids.
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