来自Gomphus clavatus Gray的多糖体的表征和抗衰老作用
Fan Zhang1, Ting Ren2, Pengli Gao3
1Ministry of Education Agricultural Gene Engineering Research Center, Northeast Normal University, Changchun 130024, China; National Demonstration Center for Experimental Biology Education, Northeast Normal University, Changchun 130024, China.
草 (Gomphus clavatus polysaccharide,GPF) 通过增强抗氧化活性和改善认知功能,在小鼠中显示出显著的抗衰老作用. 这种天然化合物在预防与年龄相关的疾病方面表现有前途.
科学领域:
- 菌类学 菌类学是指菌类学.
- 生物化学 生物化学
- 老年学是一门学科.
背景情况:
- 衰老与氧化应激增加和认知能力下降有关.
- 正在探索自然化合物的抗衰老潜力.
- (Gomphus clavatus) 是一种可食用的,具有潜在的生物活性特性.
研究的目的:
- 从Gomphus clavatus果实体中分离和描述一个多糖.
- 在小鼠模型中评估分离多糖 (GPF) 的抗衰老作用.
- 阐明GPF抗衰老活性的潜在机制.
主要方法:
- 来自Gomphus clavatus的GPF的分离和净化.
- 对GPF的化学组成和结构分析.
- 在d-银糖诱导老化小鼠体内抗衰老评估,包括生物化学分析和行为测试.
- 涉及AMPK/SIRT1/PGC-1α通路分析的机制研究.
主要成果:
- 获得了一种高度分支的异多聚糖 (GPF, 112.0 kDa),富含曼诺,银河糖,阿拉比诺,西洛和葡萄糖.
- 在老年小鼠中,GPF显著增强了抗氧化酶活性 (SOD,CAT,GSH-Px),增加了总抗氧化能力,并降低了MDA水平.
- 在老年小鼠中,GPF的使用改善了学习和记忆缺陷,并激活了AMPK/SIRT1/PGC-1α通路.
结论:
- GPF具有显著的抗衰老特性,可能是由其抗氧化作用和AMPK/SIRT1/PGC-1α通路的激活介导的.
- GPF显示出作为一种天然治疗剂的潜力,用于打击衰老和与年龄相关的认知衰退.
- 对GPF的进一步研究可能会导致促进健康衰老的新策略.
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