奎尔铁II复合物的降氧特性,具有增强的抗氧化和抗病毒活性
Sara E Abdel Hameed1, Weam M Abou El-Maaty1, Esam A Gomaa1
1Chemistry Department Faculty of Science, Mansoura University, Mansoura, Egypt.
Scientific reports
|December 18, 2025
概括
这项研究成功地将氨酸与铁 (II) 离子复合,增强其抗氧化和抗癌特性. 新的铁 (II) - 氨酸复合体显示了改善的生物利用性和治疗应用的潜力.
科学领域:
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
- 药理学 药理学是指药理学的学科.
背景情况:
- 奎尔是一种天然的黄类化合物,具有抗氧化,抗炎和抗癌的特性.
- 奎尔丁的临床使用受到水溶性差和生物可用性低的阻碍.
- 铁 (II) 复合被探索以增强奎尔塞的物理化学和药理学特征.
研究的目的:
- 研究奎尔素与铁 (II) 离子的复合.
- 评估复杂化对奎尔素抗氧化,抗癌和抗病毒潜力的影响.
- 为了评估铁 (II) - 酸盐复合物的结构和电子特性.
主要方法:
- 电化学技术 (循环电压测量) 的使用
- 光谱方法 (UV-Vis,1小时NMR)
- 在X射线中,X射线的衍射效果是不同的.
- 生物分析 (DPPH激素清除,细胞毒性,抗真菌)
- 计算机建模 (分子对接,DFT计算)
主要成果:
- 复杂的形成被证实使用1:1的立体测量,稳定常数 (log βMX = 3.29) 和自发热力学 (ΔG = -19.07 kJ/mol).
- 铁 (II) - 奎尔丁复合物与自由奎尔丁相比,表现出增强的抗氧化活性和对HepG2和MCF-7癌细胞系的优越细胞毒性.
- 分子对接表明该复合体对SARS-CoV-2尖端蛋白具有更强的结合亲和力,表明潜在的抗病毒疗效.
结论:
- 铁 (II) 复合显著改善了奎尔的物理化学和药理特性.
- 铁 (II) - 奎尔丁复合体在抗氧化疗法,癌症治疗和抗病毒药物开发方面显示出有前途的多功能潜力.
- 需要进一步的研究来探索这种新复合物的治疗应用.
相关概念视频
Oxidation of Phenols to Quinones
4.5K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
4.5K
Electron Transport Chain: Complex III and IV
9.0K
During the electron transport chain, electrons from NADH and FADH2 are first transferred to complexes I and II, respectively. These two complexes then transfer the electrons to ubiquinol, which carries them further to complex III. Complex III passes the electrons across the intermembrane space to Cyt c, which carries them further to complex IV. Complex IV donates electrons to oxygen and reduces it to water. As electrons pass through complexes I, III, and IV, the energy released aids the pumping...
9.0K
The Electron Transport Chain
19.5K
The electron transport chain or oxidative phosphorylation is an exothermic process in which free energy released during electron transfer reactions is coupled to ATP synthesis. This process is a significant source of energy in aerobic cells, and therefore inhibitors of the electron transport chain can be detrimental to the cell's metabolic processes.
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
19.5K
Redox Titration: Other Oxidizing and Reducing Agents
1.3K
Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
1.3K
Colors and Magnetism
13.9K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
13.9K
Electron Transport Chain: Complex I and II
18.4K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
18.4K


