Cigarette smoking induces functional antiprotease deficiency in the lower respiratory tract of humans. Academic Article uri icon

Overview

MeSH

  • Adult
  • Bronchi
  • Extracellular Space
  • Humans
  • Pancreatic Elastase
  • Plants, Toxic
  • Pulmonary Emphysema
  • Tobacco

MeSH Major

  • Lung
  • Smoking
  • alpha 1-Antitrypsin Deficiency

abstract

  • Current concepts of the pathogenesis of emphysema suggest that it results from an imbalance of elastase and antielastase activity within the alveolar structures. Although emphysema that is associated with hereditary deficiency of serum alpha 1-antitrypsin conforms to this scheme, the major risk factor in the more common form of emphysema is cigarette smoking. A study was designed to evaluate the premise that cigarette smoking may be associated with an acquired, functional defect in lung alpha 1-antitrypsin. Determination of the antielastase activity of alpha 1-antitrypsin obtained from the lungs of smoking and nonsmoking individuals revealed a nearly twofold reduction in the functional activity of this elastase inhibitor in the lungs of cigarette smokers. These data suggest that cigarette smokers may lose some of the normal antielastase protective screen of the lower respiratory tract, making them more vulnerable to destructive lung disease.

publication date

  • December 14, 1979

has subject area

  • Adult
  • Bronchi
  • Extracellular Space
  • Humans
  • Lung
  • Pancreatic Elastase
  • Plants, Toxic
  • Pulmonary Emphysema
  • Smoking
  • Tobacco
  • alpha 1-Antitrypsin Deficiency

Research

keywords

  • Journal Article

Identity

Language

  • eng

PubMed ID

  • 316188

Additional Document Info

start page

  • 1315

end page

  • 1316

volume

  • 206

number

  • 4424