摄入的酒精 (乙醇) 完全氧化为二氧化碳 (CO) 和水 (H) 的整体方程
Norihiro Shinkawa1, Eiji Kakizaki1, Ai Sonoda1
1Division of Legal Medicine, Department of Social Medicine, Faculty of Medicine, University of Miyazaki, Kiyotake, Miyazaki 889-1692, Japan.
Legal medicine (Tokyo, Japan)
|November 7, 2025
概括
摄入的酒精 (乙醇) 的完全氧化产生了一个整体方程,揭示它产生离子 (H+). 这一发现挑战了乙醇新陈代谢是中性的概念,并对重饮者中的代谢酸化有影响.
科学领域:
- 生物化学 生物化学
- 法医科学 法医科学 法医科学
- 生理学 生理学 生理学
背景情况:
- 摄入的酒精 (乙醇) 在肝脏中氧化为酸,然后在其他器官中氧化为二氧化碳和水.
- 在法医文献中尚未确定乙醇完全氧化的全面整体方程.
- 了解乙醇代谢至关重要,因为它具有生理上的相关性,并与代谢性酸性化症等疾病相关.
研究的目的:
- 导出并呈现乙醇完全氧化的整体化学方程.
- 为了研究在乙醇代谢过程中产生离子 (H+).
- 在乙醇生理效应的背景下澄清H+生成的含义.
主要方法:
- 总结乙醇氧化的单个生化反应,包括由酒精和化物脱酶催化反应.
- 包括转化为乙辅酶A和随后通过酸循环氧化.
- 考虑到尼古丁胺氨基二核酸和乌比奎诺在减少分子氧气中的作用,考虑到无机酸盐缓冲.
主要成果:
- 获得了乙醇完全氧化的整体方程,表达为由于无机酸盐的双重形式 (H2PO4-和HPO42-) 的一对方程.
- 一个乙醇分子的完全氧化产生大约0.6 (0.5-0.7) 的离子 (H+),取决于pH.
- 这种H+生成与以乙醇中性代谢过程的普遍假设相矛盾.
结论:
- 乙醇的完全氧化并不是代谢中性的,因为它导致净H+的形成.
- 在乙醇代谢过程中生成H+具有重要意义,特别是在大量饮酒的人群中理解代谢性酸性疾病.
- 需要进一步的研究,以充分阐明从乙醇氧化生成H+的影响.
相关概念视频
Chemical Equations
80.5K
Chemical equations represent the identities and relative quantities of substances involved in a chemical reaction. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation. Plus signs (+) separate individual reactant and product formulas, and an arrow (→) separates the reactant and product (left and right)...
80.5K
Balancing Redox Equations
61.4K
Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
61.4K
Oxidation of Alcohols
15.6K
In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
The process of oxidation in a chemical reaction is observed in any of the three forms:
15.6K
Limiting Reactant
69.2K
The relative amounts of reactants and products represented in a balanced chemical equation are often referred to as stoichiometric amounts. However, in reality, the reactants are not always present in the stoichiometric amounts indicated by the balanced equation.
69.2K
Acid-Catalyzed Dehydration of Alcohols to Alkenes
23.5K
In a dehydration reaction, a hydroxyl group in an alcohol is eliminated along with the hydrogen from an adjacent carbon. Here, the products are an alkene and a molecule of water. Dehydration of alcohols is generally achieved by heating in the presence of an acid catalyst. While the dehydration of primary alcohols requires high temperatures and acid concentrations, secondary and tertiary alcohols can lose a water molecule under relatively mild conditions.
23.5K
Acid-Catalyzed Hydration of Alkenes
16.9K
Alkenes react with water in the presence of an acid to form an alcohol. In the absence of acid, hydration of alkenes does not occur at a significant rate, and the acid is not consumed in the reaction. Therefore, alkene hydration is an acid-catalyzed reaction.
16.9K


