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Acetaldehyde involvement in positive and negative alcohol expectancies in han Chinese persons with alcoholism
- Source :
- Archives of general psychiatry. 63(7)
- Publication Year :
- 2006
-
Abstract
- Context The ALDH2*2 allele has been shown to be a protective factor against alcoholism in a normal population owing in part to the elevated blood level of acetaldehyde and its accompanying physiological discomforts after drinking alcohol. Despite the well-established link between the ALDH2*2 allele and the physiological discomforts after drinking, very little is known regarding the psychological expectancies of drinking among persons with alcoholism with different ALDH genotypes. Objectives To determine whether there are differences in craving, alcohol consumption, and alcohol outcome expectancies between persons with alcoholism who have the ALDH2*1/*2 genotype and persons with alcoholism who have the ALDH2*1/*1 genotype. Design Cross-sectional survey. Setting Six outpatient alcohol treatment facilities in Taiwan. Participants Ninety-eight persons with alcoholism who met the DSM-IV criteria for current alcohol dependence. Main Outcome Measures Alcohol Craving Scale, Form 90, and Alcohol Expectancies Scale scores. Results Overall, the ALDH2*1/*2 group had lower negative alcohol outcome expectancies (F 4,93 = 2.43, P ≤.05, η p 2 = 0.10). Specifically, they had fewer expected negative outcomes in the social or interpersonal domain ( P P ≤.005) than did the ALDH2*1/*1 group. Moreover, the ALDH2*1/*2 group had higher positive alcohol outcome expectancies (F 7,90 = 2.36, P p 2 = 0.16), and they had more expected positive outcomes in the relaxation and tension reduction domain ( P P = .61) or consumption ( P = .11). Conclusions Although the ALDH2*2 allele has been associated with negative physiological responses in normal samples in past research, the psychological expectancies of drinking are more positive and less negative for persons with alcoholism who have the ALDH2*1/*2 genotype. A role of acetaldehyde is implied in these effects, which seem to override the usual discomfort effects associated with protection against alcohol drinking. Future studies are needed to assess alcohol outcome expectancies at different phases of alcohol dependence and to evaluate the concurrent relationships of blood levels of acetaldehyde with physiological and psychological outcomes among persons with alcoholism who have different ALDH genotypes.
- Subjects :
- Adult
Male
medicine.medical_specialty
Alcohol Drinking
Genotype
Protective factor
Taiwan
Alcohol
Craving
Context (language use)
Acetaldehyde
chemistry.chemical_compound
Arts and Humanities (miscellaneous)
Asian People
Surveys and Questionnaires
medicine
Humans
Psychiatry
ALDH2
Ethanol
Aldehyde Dehydrogenase, Mitochondrial
Alcohol dependence
Genetic Variation
Aldehyde Dehydrogenase
Behavior, Addictive
Psychiatry and Mental health
Alcoholism
chemistry
Attitude
Female
medicine.symptom
Psychology
Clinical psychology
Subjects
Details
- ISSN :
- 0003990X
- Volume :
- 63
- Issue :
- 7
- Database :
- OpenAIRE
- Journal :
- Archives of general psychiatry
- Accession number :
- edsair.doi.dedup.....cda9cbc5cfee589924936c54e8d97001