Related Experiment Video
Updated: Feb 14, 2026

Modeling Alcohol Consumption in Rodents Using Two-Bottle Choice Home Cage Drinking and Microstructural Analysis
Published on: November 8, 2024
Association of alcohol dehydrogenase 1C gene *1/*2 polymorphism with alcohol Dependence(AD) in Turkey: A
Shiying Zhang1, Hao Wu1, Heng Zhou1
1Department of Pathology, Renmin Hospital of Wuhan University, Hubei Zhang Road (formerly Ziyang Road), Wuchang District No. 99 Jiefang Road 238, Wuhan, Hubei province, China.
Abstract:
Previous studies have investigated the association between ADH1C *1/*2 polymorphism and alcohol dependence (AD), but have yielded controversial results in Turkey. Therefore, in an effort to illustrate whether ADH1C *1/*2 polymorphism is associated with AD risk in Turkish population, we used meta analysis to synthetically evaluate the effect of ADH1C *1/*2 polymorphism on AD. Publications were identified by searching in PubMed and EMBASE databases. Four eligible studies involving 400 controls and 421 cases were included in this study. Overall, there is a significant association between ADH1C *1/*2 polymorphism and AD risk in the allelic model (OR = 1.66, 95% CI = 1.05-2.62, P = 0.03) and recessive model (OR = 1.72, 95% CI = 1.14-2.58, P = 0.01), while no significance was discovered in the dominant genetic model, homozygote model and heterozygotemodel. No publication bias was indicated from Begg's and Egger's test. Our meta-analysis results suggested that a potential relationship between ADH1C *1/*2 polymorphism and AD risk in Turkish population. Further studies are confirmed to resolve this question about the etiological mechanisms of the correlation.
Related Concept Videos
Oxidation of Alcohols
The process of oxidation in a chemical reaction is observed in any of the three forms:
Ethers from Alcohols: Alcohol Dehydration and Williamson Ether Synthesis
Ethers can be prepared from organic compounds by various methods. Some of them are discussed below,
Preparation of Ethers by Alcohol Dehydration
In this method, in the presence of protic acids, alcohol dehydrates to produce alkenes and ethers under different conditions. For example, in the presence of sulphuric acid, dehydration of ethanol at 413 K yields ethoxyethane, whereas it yields ethene at 443 K.
Protection of Alcohols
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
Preparation of Alcohols via Substitution Reactions
Alcohols can be synthesized from alkyl halides via nucleophilic substitution reactions. The highly polar carbon-halogen bond in the substrate makes halide a good leaving group. The hydroxide ion or water can act as a nucleophile to take the place of halide and form an alcohol. The substitution reactions occur via two different reaction pathways, SN1 or SN2, depending on the nature of carbon attached to the halide.
Primary alcohols are synthesized from primary alkyl halides, and the...
Esters to Alcohols: Hydride Reductions
Lithium aluminum hydride is a source of hydride ions and functions as a nucleophile. The mechanism proceeds in three steps. Firstly, the nucleophilic hydride ion attacks the carbonyl carbon of the ester to form a tetrahedral intermediate. Subsequently, the carbonyl group re-forms,...
Esters to Alcohols: Grignard Reaction
The reaction requires two equivalents of the Grignard reagent and introduces two identical alkyl groups, derived from the Grignard reagent, bonded to the hydroxyl-bearing carbon of the alcohol.
The reaction follows the typical nucleophilic acyl substitution mechanism. The Grignard...

