来自Medusantha martiusii的阿比二和它们的抗神经炎症活性
Edileuza B de Assis1, Rodrigo S de Andrade1, Joanda P R E Silva1
1Postgraduate Program in Natural and Synthetic Bioactive Products, Federal University of Paraiba, João Pessoa 58051-900, Brazil.
来自Medusantha martiusii的七种新化合物显示出抗神经炎症作用. 化合物1-4和7减少了氧化,其中化合物1特别有效.
科学领域:
- 自然产品 化学 化学
- 药理学 药理学是指药理学的学科.
- 神经科学是一个神经科学.
背景情况:
- 亚比二烯酸是一种具有多种生物活性的自然产品.
- 神经炎症在各种神经退行性疾病的发病过程中起着至关重要的作用.
- Medusantha martiusii是一种尚未广泛研究其化学成分和药理性质的植物物种.
研究的目的:
- 从Medusantha martiusii中分离和表征新的阿比坦二甲类物种.
- 为了评估分离的化合物的抗神经炎症潜力.
主要方法:
- 使用六提取和色谱技术分离化合物.
- 使用HRESIMS,1D/2D NMR,IR光谱和计算方法 (DP4+,ECD) 阐明结构.
- 在体外抗神经炎症试验中,使用用LPS和IFN-γ刺激的BV2微质来测量氧化和TNF-α水平.
主要成果:
- 隔离了七种新的阿比二类化合物,即美杜桑托尔A-G (1-3, 5, 7-9),以及两个已知的类型 (4, 6).
- 化合物1-4和7在12.5μM时显著抑制了氧化 (NO) 的产生.
- 化合物1显示出强大的NO抑制 (IC50 = 3.12μM),表现优于奎尔塞丁 (IC50 = 11.8μM). 化合物2也显示出显著的NO抑制 (IC50 = 15.53μM).
- 化合物1和2有效降低了促炎性细胞因子TNF-α的水平.
结论:
- 梅杜桑塔马蒂乌西是新型阿比坦二甲类物质的来源.
- 化合物1和2通过抑制NO和TNF-α的产生,表现出显著的抗神经炎症特性.
- 这些化合物作为神经炎症疾病的潜在治疗剂具有前景.
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