Effect of Alcohol Sensitivity in Healthy Young Adults on Breath Pharmacokinetics of Acetaldehyde After Mouth Washing with Alcohol

Alcoholism, Clinical and Experimental Research
Ayako Himemiya-HakuchoTatsuya Fujimiya

Abstract

Acetaldehyde is causally related to head and neck cancer. Individuals with aldehyde dehydrogenase 2 deficiency experience alcohol sensitivity and are referred to as "flushers" because of their skin-flushing response to high blood acetaldehyde levels after alcohol consumption. Acetaldehyde is produced in the oral cavity after local alcohol exposure without alcohol ingestion. However, the relationship between the oral acetaldehyde level after local alcohol exposure and alcohol sensitivity is unclear. Herein, sampling the exhaled breath, we evaluated the effect of alcohol sensitivity on the pharmacokinetics of ethanol (EtOH) and acetaldehyde in breath after mouth washing with alcohol. Twenty-eight healthy young adults were divided into flusher and nonflusher groups based on an EtOH patch test. The subjects washed their mouths for 30 seconds with 40 ml of 5% v/v alcohol, and their breath samples were collected 12 times over 20 minutes after mouth washing and rinsing with water. EtOH and acetaldehyde concentrations in all breath samples were measured using sensor gas chromatography. Breath EtOH concentrations exponentially decreased in both groups after mouth washing with alcohol. Breath acetaldehyde concentrations showed an immedia...Continue Reading

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