揭示α-托科菲醇的抗氧化优势:对维生素E命名和分类的影响
Hao Tian1, Yi-Fang Li1, Gen-Long Jiao1
1The Sixth Affiliated Hospital of Jinan University, Guangdong Engineering Research Center of Traditional Chinese Medicine & Disease Susceptibility, Guangzhou Key Laboratory of Traditional Chinese Medicine & Disease Susceptibility, Guangdong-Hong Kong-Macao Universities Joint Laboratory for the Internationalization of Traditional Chinese Medicine, International Cooperative Laboratory of TCM Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, 510632, China.
阿尔法-托科菲罗尔 (维生素E) 具有卓越的化学特性,包括增强的激素火. 密度函数理论计算揭示了其独特的热力学和动力学特征,支持其被指定为维生素E.
科学领域:
- 生物化学 生物化学
- 计算化学计算化学
- 营养科学 营养科学
背景情况:
- 托科菲醇,包括α-托科菲醇,已被认可超过一个世纪的生物作用.
- 阿尔法托科菲罗尔是维生素E的关键形式,但其独特的化学基础尚未完全理解.
研究的目的:
- 为了阐明alpha-tocopherol的独特化学特性.
- 为了比较热力学和运动性质的多科菲醇,多科醇,以及他们的氧化产品.
主要方法:
- 使用密度函数理论 (DFT) 的计算.
- 评估各种多科菲罗和多科特里诺化合物及其氧化产物的热力学和动力学特性.
主要成果:
- 阿尔法-托科菲罗尔与其他托科菲罗尔和托科特里诺尔相比,具有优越的热力学和动力学特性.
- 一个更大的最高占有分子轨道 (HOMO) - 最低不占有分子轨道 (LUMO) 差距在α-托科菲罗尔中间体表明更大的能量释放和有利的反应进展.
- 阿尔法-托科菲罗尔在灭激素中间体方面表现出更高的效率,特别是在与维生素C结合时.
结论:
- 这些化学发现强烈支持将alpha-tocopherol指定为维生素E.
- 阿尔法-托科菲罗尔的独特电子和反应性质是其生物学意义的基础.
更多相关视频
11:56A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells
Published on: April 11, 2014
10:30A Generalized Method for Determining Free Soluble Phenolic Acid Composition and Antioxidant Capacity of Cereals and Legumes
Published on: June 10, 2022
相关概念视频
Vitamins
Radical Autoxidation
Oxidation of Phenols to Quinones
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...
Lipid-derived Compounds in the Human Body
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
Oxidation and Reduction of Organic Molecules
The removal of an electron from a molecule, results in a...
Acetals and Thioacetals as Protecting Groups for Aldehydes and Ketones
In the presence of multiple functional groups, when selective reduction of one group over the other is desired, groups like aldehydes and ketones that form acetals...
