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Monoamine oxidase and cigarette smoking

Joanna S Fowler1, Jean Logan, Gene-Jack Wang

  • 1Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973, USA. fowler@bnl.gov

Neurotoxicology
|February 5, 2003
PubMed

Insights

Current cigarette smokers exhibit lower monoamine oxidase (MAO) levels, likely due to tobacco smoke

Area of Science:

  • Neuroscience
  • Pharmacology
  • Epidemiology

Background:

  • Current cigarette smokers exhibit significantly reduced levels of monoamine oxidase (MAO).
  • Evidence suggests this reduction is a pharmacological effect of tobacco smoke exposure.
  • The observed reduction may not be an inherent biological characteristic of smokers.

Purpose of the Study:

  • To summarize human and animal studies on the inhibitory effects of tobacco smoke on MAO.
  • To discuss the implications of MAO inhibition in smoking epidemiology.
  • To explore the role of MAO inhibitors in tobacco and their relevance to psychiatric disorders and smoking cessation.

Main Methods:

  • Review of existing human and animal studies.
  • Analysis of epidemiological data related to smoking and MAO levels.
  • Examination of MAO inhibitor compounds present in tobacco smoke.

Main Results:

  • Tobacco smoke demonstrably inhibits monoamine oxidase activity.
  • This inhibition is consistent across both human and animal models.
  • MAO inhibition is a significant factor in understanding smoking behavior and its consequences.

Conclusions:

  • Reduced MAO levels in smokers are primarily a pharmacologically induced effect of tobacco smoke.
  • Understanding MAO inhibition is crucial for addressing smoking-related health issues.
  • Further research into MAO inhibitors may offer new avenues for smoking cessation strategies.

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