科学家们长期以来一直在研究脑神经元,以了解心理健康。然而,发表在《分子精神病学》(Molecular Psychiatry)杂志上的一项突破性研究强调了microglia and anxiety(小胶质细胞与焦虑)之间的关键关系。犹他大学的研究人员发现,这些免疫细胞内的钙信号直接影响行为状态。这一发现表明,小胶质细胞是神经精神调节的积极参与者,而不仅仅是被动的观察者。 Microglia and Anxiety: The Role of Calcium 研究小组专注于一组被称为Hoxb8小胶质细胞的特定免疫细胞。在研究过程中,他们使用遗传工具和光基刺激在健康小鼠中激活了这些细胞。因此,小鼠开始表现出典型的慢性焦虑强迫性理毛和冻结行为。此外,研究小组观察到在这些发作期间,细胞内的钙水平激增。因此,高钙水平充当了触发这些神经精神症状的分子开关。 此外,研究人员还检查了强迫症谱系障碍(OCSD)的小鼠模型。在这些模型中,Hoxb8小胶质细胞保持着持续的高钙水平。这种异常导致了持久的病理行为。因为在健康小鼠行为停止时,信号恢复正常,这种联系变得清晰。此外,阻止钙进入这些细胞可以防止焦虑的诱发。这一确认将钙确立为行为输出的主要驱动力。 Future Therapeutic Implications … Can Brain Immune Cells Control Anxiety? New Study Says YesRead more
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