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Acute severe alcohol-induced bronchial asthma
1Division of Respirology & Allergology, Fujita Health University School of Medicine, Toyoake.
Internal Medicine (Tokyo, Japan)
|August 17, 2001
Summary
A severe asthma attack was triggered by alcohol due to a genetic mutation affecting alcohol metabolism. Individuals with this aldehyde dehydrogenase-2 (ALDH-2) gene mutation are at high risk for alcohol-induced asthma.
Area of Science:
- Immunology
- Genetics
- Pharmacology
Background:
- Alcohol consumption can trigger asthma attacks in susceptible individuals.
- Genetic variations influence alcohol metabolism and potential adverse reactions.
- Aldehyde dehydrogenase-2 (ALDH-2) deficiency is linked to alcohol intolerance.
Observation:
- A patient experienced a severe bronchial asthma attack shortly after ingesting food containing alcohol.
- Standard ethanol inhalation tests were negative, but acetaldehyde inhalation tests were positive.
- Genetic analysis revealed the patient was homozygous for a mutation in the aldehyde dehydrogenase-2 (ALDH-2) gene.
Findings:
- The patient's asthma attack was diagnosed as acute severe alcohol-induced asthma.
- Homozygosity for the mutant ALDH-2 gene is associated with susceptibility to alcohol-induced asthma.
- Acetaldehyde accumulation, due to ALDH-2 deficiency, is implicated as the trigger for asthma exacerbation.
Implications:
- Bronchial asthma patients with homozygous ALDH-2 mutations require careful monitoring for alcohol-induced asthma.
- Understanding the genetic basis of alcohol sensitivity can inform asthma management strategies.
- Further research into ALDH-2 gene mutations and their role in allergic சுவாச நோய்கள் is warranted.