黄化合物的结构特征在抑制来自HSA/葡萄糖系统产生的AGE中的作用
Alireza Mohammadpour1, Morteza Sadeghi1, Mehran Miroliaei2
1Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
Applied biochemistry and biotechnology
|February 14, 2024
概括
五种黄素被测试了它们在人类血清中抑制先进糖化终产品 (AGEs) 形成的能力. 氨酸表现出最强的AGE抑制作用,为设计新的抗糖药物提供了洞察力.
科学领域:
- 生物化学 生物化学
- 药理学 药理学是指药理学的学科.
- 药用化学 医学化学
背景情况:
- 糖尿病病原包括从与蛋白质反应的葡萄糖中形成先进的糖化终产物 (AGEs).
- 人类血清白蛋白 (HSA) 由于其丰富性和特定的结合部位,特别容易受到AGE的感染.
- 众所周知,含有基的黄类化合物可以抑制AGE形成途径.
研究的目的:
- 为了比较五种黄酸apigenin,naringenin,luteolin,quercetin和methylquercetin在抑制人类血清白蛋白/葡萄糖系统中AGE形成的疗效.
- 阐明这些黄类化合物在抑制AGE形成中的结构-活性关系.
主要方法:
- 在体外评估使用光火抑制来抑制AGE.
- 光谱技术包括紫外线可见光谱和CD光谱极极度测量.
- 化学测定 (TNBS,DTNB,DNPH,刚果红) 和光探针 (ThT,ANS) 进行详细分析.
- 分子对接,以研究黄素和HSA之间的相互作用.
主要成果:
- 所有测试的黄类药物都在体外抑制了AGE的形成.
- 抗AGE疗效按照下面的顺序进行:黄素 > 氨酸 > 甲基氨酸 > 原素 > 原素.
- 对接研究显示,HSA.的"Sudlow口袋"中的类黄和易发生糖化残留物之间存在非共价相互作用.
- 特定的结构特征,如C4'的基化和C2-C3双键,增强了抗糖化潜力,而C3甲基化降低了它.
结论:
- 黄类药物在抑制AGE形成方面具有显著的潜力,结构性修改会影响其有效性.
- 了解黄胺的结构抑制关系为开发新型抗糖药物提供了基础.
- 素和氨酸显示出有前途的抗糖化特性,需要进一步研究.
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