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The Default Mode Network (DMN), Microglia Dysfunction, and Neuropsychiatric Disorders: A Neuroimmune Interface

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The Default Mode Network (DMN) is a central player in how the human brain processes internal thoughts, memories, emotions, and self-referential thinking. Its dysfunction has been increasingly associated with a variety of psychiatric and neurological conditions, from schizophrenia to hepatic encephalopathy, and even neurodegenerative diseases like Alzheimer's. But what underlies these dysfunctions? Recent research points to an unlikely suspect: microglia, the brain's resident immune cells. Understanding the Default Mode Network (DMN) The DMN is most active when the brain is at rest, such as during daydreaming, self-reflection, or when not focused on external tasks. It deactivates during goal-oriented behaviors. Major hubs of the DMN include: Medial prefrontal cortex (mPFC) Posterior cingulate cortex (PCC) Hippocampus These structures are heavily involved in autobiographical memory, emotional regulation, and self-awareness. The DMN operates as a “switchboard” — ...

Gene Editing Will Not Become the Cure for Everyone: Comparing the Cost of Lifelong Insulin Therapy to Gene-Edited Cell Transplants

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Introduction Type 1 diabetes (T1D) is a lifelong autoimmune condition affecting around 9.5 million people globally. It requires continuous insulin therapy to maintain blood glucose levels and prevent life-threatening complications. Despite advancements in insulin delivery and glucose monitoring, insulin remains a lifelong management tool—not a cure. In contrast, gene-edited cell transplants represent a promising potential breakthrough. By using gene editing to engineer insulin-producing beta cells, these therapies aim to restore natural insulin production, potentially eliminating the need for daily injections. But as promising as this sounds, the high cost and clinical complexity of these therapies raise an important question: Can gene-edited cell therapy ever become a practical cure for most people with Type 1 diabetes? Related Article: Type 1 diabetes occurs in approx. 9.5 million people. Gene editing will not become the cure for everyone. Survival of Transplanted Allogeneic Be...