利巴巴鲁姆多糖化物通过调节CRHR1来改善皮质激素诱导的认知衰退
Xiao-Xiao Shi1, Xiao-Feng Tian1, Bin He2
1Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Brain research bulletin
|April 12, 2025
概括
巴巴鲁姆多糖 (LBP) 通过调节CRHR1.1,改善认知功能并保护神经元. 这表明LBP可能有助于预防由高血糖皮质激素 (GCs) 引起的认知衰退.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 生物化学 生物化学
背景情况:
- 巴巴鲁姆多糖 (LBP) 具有抗炎,抗氧化和抗衰老的特性.
- 在减轻压力诱导的认知功能障碍,特别是与高葡萄糖皮质醇 (GC) 水平相关的LBP的精确机制,仍然在很大程度上未被阐明.
研究的目的:
- 研究LBP对皮质激素 (CORT) 诱导的认知障碍产生影响的潜在机制.
- 评估LBP在CORT诱导认知功能障碍的小鼠模型中的治疗潜力.
主要方法:
- 使用皮质激素 (CORT) 注射建立一种认知障碍的老鼠模型.
- 通过水迷宫测试评估认知功能,通过HE染色测试评估大脑形态.
- 蛋白质和基因表达的分析使用RT-qPCR,西斑和免疫光.
- 在体外研究中,使用使用CORT和D-银糖治疗的SH-SY5Y细胞来评估细胞增殖和蛋白质表达.
主要成果:
- 在注射CORT的老鼠中,LBP治疗显著改善了学习和认知功能,同时保护了下丘脑和海马神经元.
- 低血压的使用导致血皮质的度降低.
- 通过在海马体和下丘脑上调节CRHR1和RGS2,LBP增强了突触蛋白PSD95和SYN的表达.
- 在体外,LBP促进了SH-SY5Y细胞的增殖,并调节了CRHR1,RGS2和突触蛋白的表达.
结论:
- 低血压改善CORT诱导的认知衰退,主要通过调节CRHR1.
- 低血压表现出作为一种治疗药物的潜力,可以预防与高GC水平相关的认知功能障碍.
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