Methodology: The study utilized both in vitro and in vivo testing with a model of aldehyde dehydrogenase 2 (ALDH2) alternation. Korean pear extract was administered to mice exhibiting normal (C57BL/6) and deficient (Aldh2 -/-) Aldh2. Following this, the mice were given ethanol through gavage after a timeframe of 30 minutes. Implementation of GC/MS enabled quantification of alcohol and acetaldehyde levels in the blood samples.

Discussion of Results: The results from the study revealed that Korean pears stimulate activities of alcohol dehydrogenase (ADH) and ALDH in vitro and in vivo, subsequently reducing blood alcohol levels regardless of ALDH2 genotype. Interestingly, the extract increased the acetaldehyde levels in blood in Aldh2 deficient mice but not in Aldh2 normal mice. This indicates that the key enzymes involved in alcohol metabolism are stimulated by Korean pears, which could be the primary mechanism involved in alcohol detoxification. Furthermore, the variations in human ALDH2 polymorphisms could result in individual variations to the detoxification effects of Korean pears.