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Qiao Y, Li H, Li Y, Su E, Wang Z, Che L, Du Y. Study on the Mechanism of Eerdun Wurile's Effects on Post-operative Cognitive Dysfunction by the TLR4/NF-κB Pathway. Mol Neurobiol 2023; 60:7274-7284. [PMID: 37548853 PMCID: PMC10657789 DOI: 10.1007/s12035-023-03537-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/21/2023] [Indexed: 08/08/2023]
Abstract
The object of our work was to observe whether the Mongolian medicine Eerdun Wurile (EW) improve postoperative cognitive dysfunction (POCD) by affecting the TLR4/NF-κB. Mice (6-8-week-old male C57BL/6 J) were selected to establish an animal model of POCD by combining intracerebroventricular injection of lipopolysaccharide and nephrectomy; EW formulation and EW basic formulation were administered intra-gastrically for 7 consecutive days. The cognitive performance was assessed by Morris water maze test. H&E staining was examined to detect alterations in hippocampal tissue. Immunohistochemical staining was performed to evaluate MyD88, NF-κB, TLR4, iNOS, and IBA-1 expressions; Western blotting and RT-qPCR were performed to evaluate MyD88, NF-κB, and TLR4. The expressions of IL-6, IL-1β, and TNF-α were evaluated by ELISA. Intracerebroventricular injection of lipopolysaccharide combined with nephrectomy induced cognitive dysfunction in mice, stimulated TLR4/NF-κB and microglia, and promoted the secretion of murine TNF-α, IL-1β, and IL-6. EW formulation and EW basic formulation treatment are able to suppress the TLR4/NF-κB pathway activation and microglia, and the serum cytokine secretions related to proinflammation, and restore the cognitive performance. EW formulation and EW basic formulation can improve POCD in mice, and TLR4/NF-κB pathway seems to be one of the important mechanisms in EW's improvement of POCD.
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Affiliation(s)
- Yun Qiao
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Huiru Li
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Yan Li
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Enboer Su
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Zhe Wang
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Limuge Che
- Medical Innovation Center for Nationalities, Inner Mongolia Medical University, Hohhot, 010110, China.
- Jinshan Economic Development Zone, Tumote Left Banner, Inner Mongolia Autonomous Region Jinshan Campus of Inner Mongolia Medical University, Hohhot City, China.
| | - Yiri Du
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China.
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