The Biological Changes of Synaptic Plasticity in the Pathological Process of Sepsis-associated Encephalopathy.

Sepsis-associated encephalopathy (SAE) is a form of cognitive and psychological impairment resulting from sepsis, which occurs without any central nervous system infection or structural brain injury. Patients may experience long-term cognitive deficits and psychiatric disorders even after discharge. However, the underlying mechanism remains unclear. As cognitive function and mental disease are closely related to synaptic plasticity, it is presumed that alterations in synaptic plasticity play an essential role in the pathological process of SAE. Here, we present a systematic description of the pathogenesis of SAE, which is primarily driven by glial cell activation and subsequent release of inflammatory mediators. Additionally, we elucidate the alterations in synaptic plasticity that occur during SAE and comprehensively discuss the roles played by glial cells and inflammatory factors in this process. In this review, we mainly discuss the synaptic plasticity of SAE, and the main aim is to show the consequences of SAE on inflammatory factors and how they affect synaptic plasticity. This review may enhance our understanding of the mechanism underlying cognitive dysfunction and provide valuable insights into identifying appropriate therapeutic targets for SAE.

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