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| Effect of Murine Nerve Growth Factor and Sodium Ganglioside on the Levels of NF-kB p56, TLR-4 and MyD88 in Hippocampus of Epileptic Rats |
| RAO Zhi-hui, LIANG Hai-ying, XIANG Yan-chun |
| Longyan First Affiliated Hospital of Fujian Medical University, Longyan Fujian 364000, China |
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Abstract Objective: Epilepsy is a prevalent neurological condition, and NF-kB, TLR-4, and MyD88 are significant contributors to its development. Murine nerve growth factor (NGF) and monosialotetrahexosylganlioside sodium for injection (MSI) are essential neurotrophic medications, yet their regulatory mechanism in the pathogenesis of epilepsy remains uncertain. The aim of this research was to examine the impacts of NGF and MSI on nuclear factor-kB(NF-kB) p65, toll-like receptor 4(TLR-4), and myeloid differentiation primary response gene 88(MyD88) in order to clarify their mechanisms of action in the management of epilepsy. Methods: A total of 40 SD rats were randomly assigned to one of five groups: blank, model, NGF model, MSI model, and NGF+MSI model. Epileptic rat models were induced through intraperitoneal injection of lithium chloride and pilocarpine solution. The rats' body mass and behavioral traits were subsequently observed. The Western blotting technique was utilized to detect the levels of NF-kB p65, TLR-4, and MyD88. Results: The findings indicated a more pronounced increase in body mass among the four groups prior to sacrifice, as compared to the model group. Notably, the NGF+MSI model group exhibited significant enhancements in food intake, activity, and body weight. The frequency of seizures in NGF group, MSI group, and NGF+MSI group were (5.33±1.15), (4.33±1.03), and (2.66±1.33) times/7 d, respectively, with neuronal apoptosis rates being (23.17±2.91), (21.38±3.07), (18.19±2.14)% times/7 d, respectively, which were lower than those in the model group. The levels of NF-kB p56, TLR-4, and MyD88 in the hippocampus were reduced in the model group compared to the three treatment groups. Furthermore, the expression levels in the NGF+MSI model group closely resembled those in the control group(P>0.05). Conclusion: Thorough examination revealed that NGF and MSI, either individually or in conjunction, were capable of suppressing the activation of the NF-kB pathway and enhancing the TLR-4/MyD88 signaling pathway to exert an antiepileptic influence. Furthermore, the combined administration of NGF and MSI demonstrated greater efficacy in safeguarding hippocampal neurons in epileptic rats.
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Received: 05 May 2023
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Corresponding Authors:
XIANG Yan-chun. E-mail: 151931912@qq.com
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