The full content of Annals is available to subscribers

Subscribe/Learn More  >
Brief Communications |

Increased Neutrophil Elastase Activity in Cigarette Smokers

[+] Article, Author, and Disclosure Information

Grant support: by grants to Jeffrey Weitz, M. D., from the National Institutes of Health (HL-15486), the Ontario Heart and Stroke Foundation, The Medical Research Council of Canada, and the Ciba-Geigy Foundation. Jeffrey Weitz is a Scholar of the Ontario Heart and Stroke Foundation.

▸Requests for reprints should be addressed to Jeffrey I. Weitz, M.D.; Fourth Floor, McMaster Clinic, Henderson General Hospital, 711 Concession Street; Hamilton, Ontario L8V 1C3, Canada.

Hamilton, Ontario, Canada, and New York, New York

©1987 American College of PhysiciansAmerican College of Physicians

Ann Intern Med. 1987;107(5):680-682. doi:10.7326/0003-4819-107-5-680
Text Size: A A A

We compared plasma levels of the neutrophil elastase-derived fibrinopeptide A-alpha-1-21 in healthy cigarette smokers with those in nonsmokers. The mean A-alpha-1-21 concentration was fivefold higher (95% confidence interval [Cl], 3.0 to 9.6) in ten cigarette smokers than in 20 healthy nonsmokers (2.0 nmol/L compared with 0.4 nmol/L; p < 0.0001). To evaluate the acute effect of smoking on enzyme activity, a second group of ten smokers was studied. After refraining from smoking for 12 hours, each person smoked three cigarettes. The mean A-alpha-1-21 level in the second group of smokers was not different from that in the first group of smokers (1.8 nmol/L compared with 2.0 nmol/L) but was fivefold higher (95% Cl, 2.6 to 8.7) than that in the nonsmokers (1.8 nmol/L compared with 0.4 nmol/L; p < 0.0001). After smoking three cigarettes, subjects had a twofold elevation (95% Cl, 1.6 to 3.5) in the mean A-alpha-1-21 concentration (from 1.8 nmol/L to 4.1 nmol/L; p = 0.002). Our data show that cigarette smoking perturbs the in-vivo elastase-antielastase balance and thus may produce lung disease through this mechanism.





Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).


Submit a Comment/Letter
Submit a Comment/Letter

Summary for Patients

Clinical Slide Sets

Terms of Use

The In the Clinic® slide sets are owned and copyrighted by the American College of Physicians (ACP). All text, graphics, trademarks, and other intellectual property incorporated into the slide sets remain the sole and exclusive property of the ACP. The slide sets may be used only by the person who downloads or purchases them and only for the purpose of presenting them during not-for-profit educational activities. Users may incorporate the entire slide set or selected individual slides into their own teaching presentations but may not alter the content of the slides in any way or remove the ACP copyright notice. Users may make print copies for use as hand-outs for the audience the user is personally addressing but may not otherwise reproduce or distribute the slides by any means or media, including but not limited to sending them as e-mail attachments, posting them on Internet or Intranet sites, publishing them in meeting proceedings, or making them available for sale or distribution in any unauthorized form, without the express written permission of the ACP. Unauthorized use of the In the Clinic slide sets will constitute copyright infringement.


Buy Now for $42.00

to gain full access to the content and tools.

Want to Subscribe?

Learn more about subscription options

Related Articles
Related Point of Care
Topic Collections
PubMed Articles
Forgot your password?
Enter your username and email address. We'll send you a reminder to the email address on record.