A standardized extract of the fruit of Hovenia dulcis alleviated alcohol-induced hangover in healthy subjects with heterozygous ALDH2: A randomized, controlled, crossover trial.
ETHNOPHARMACOLOGICAL RELEVANCE
Hovenia dulcis, known as the oriental raisin tree, is mainly found in East Asia. It has long been used as traditional folk remedies for alcohol intoxication.


AIM OF THE STUDY
To examine the anti-hangover effect of Hovenia dulcis Thunb. fruit extract (HDE) in a randomized controlled crossover trial.


MATERIALS AND METHODS
Twenty-six eligible male adults with heterozygous ALDH2 (23.7±0.3 years old) consumed 360mL of Korean Soju (50g alcohol) together with HDE (2460mg) or matched placebo with subsequent crossover. The blood samples were taken at baseline and 1, 4, and 12h post-treatment.


RESULTS
Blood alcohol, acetaldehyde, and total hangover scores were highest at 1h post-treatment with no difference between groups, but declines in hangover symptom scores were significant in the HDE group compared to the placebo group. Significant differences between groups were also observed on interleukin (IL)-6, IL-10, IL-10/IL-6 ratio, and aspartate aminotransferase levels, but not on endotoxins. Pearson correlation analysis revealed a positive correlation between total hangover symptom scores and IL-6 and IL-10 level. Further analyses by CYP2E1 polymorphism at rs10776687, rs2031920, rs3813867, and rs4838767 alleles showed a reversed association, suggesting that CYP2E1 polymorphism might be an effect modifier.


CONCLUSIONS
The results suggest that a favorable effect of HDE on alcohol hangovers might be associated with enhancing homeostatic regulation of inflammatory response. The magnitude of impact might be different in the presence of CYP2E1 polymorphism.
['Kim|Hoejin|H|', 'Kim|You Jin|YJ|', 'Jeong|Hye Yun|HY|', 'Kim|Ji Yeon|JY|', 'Choi|Eun-Kyung|EK|', 'Chae|Soo Wan|SW|', 'Kwon|Oran|O|']
D000328:Adult D000428:Alcohol Drinking D000071396:Aldehyde Dehydrogenase, Mitochondrial D015415:Biomarkers D018592:Cross-Over Studies D019392:Cytochrome P-450 CYP2E1 D005638:Fruit D020022:Genetic Predisposition to Disease D006579:Heterozygote D006801:Humans D008297:Male D010936:Plant Extracts D027823:Rhamnaceae D013997:Time Factors D055815:Young Adult
Hangover Alcohol Fruit of Hovenia dulcis Thunb Genetic polymorphism Inflammation