The New England Journal of Medicine
e-mail icon  FREE NEJM E-TOC    HOME   |   SUBSCRIBE   |   CURRENT ISSUE   |   PAST ISSUES   |   COLLECTIONS   |    Advanced Search
Sign in | Get NEJM's E-Mail Table of Contents — Free | Subscribe
 
Original Article
PreviousPrevious
Volume 333:894-900 October 5, 1995 Number 14
NextNext

Genetic Susceptibility to Asthma — Bronchial Hyperresponsiveness Coinherited with a Major Gene for Atopy
Dirkje S. Postma, M.D., Eugene R. Bleecker, M.D., Pamela J. Amelung, M.D., Kenneth J. Holroyd, M.D., Jianfeng Xu, M.S., Carolien I.M. Panhuysen, M.D., Deborah A. Meyers, Ph.D., and Roy C. Levitt, M.D.

 Sign up for free e-toc
 

This Article
-Full Text
- PDF

Tools and Services
-Add to Personal Archive
-Add to Citation Manager
-Notify a Friend
-E-mail When Cited

More Information
-PubMed Citation
ABSTRACT

Background Bronchial hyperresponsiveness, a risk factor for asthma, consists of a heightened bronchoconstrictor response to a variety of stimuli. The condition has a heritable component and is closely related to serum IgE levels and airway inflammation. The basis for these relations is unknown, as is the mechanism of genetic susceptibility to bronchial hyperresponsiveness. We attempted to define the interrelation between atopy and bronchial hyperresponsiveness and to investigate the chromosomal location of this component of asthma.

Methods We studied 303 children and grandchildren of 84 probands with asthma selected from a homogeneous population in the Netherlands. Ventilatory function, bronchial responsiveness to histamine, and serum total IgE were measured. The association between the last two variables was evaluated. Using analyses involving pairs of siblings, we tested for linkage between bronchial hyperresponsiveness and genetic markers on chromosome 5q31-q33, previously shown to be linked to a genetic locus regulating serum total IgE levels.

Results Serum total IgE levels were strongly correlated (r = 0.65, P<0.01) in pairs of siblings concordant for bronchial hyperresponsiveness (defined as a >20 percent decrease in the forced expiratory volume in one second produced by histamine [threshold dose, <16 mg per milliliter]), suggesting that these traits are coinherited. However, bronchial hyperresponsiveness was not correlated with serum IgE levels (r = 0.04, P>0.10). Analyses of pairs of siblings showed linkage of bronchial hyperresponsiveness with several genetic markers on chromosome 5q, including D5S436 (P<0.001 for a histamine threshold value of <=16 mg per milliliter).

Conclusions This study demonstrates that a trait for an elevated level of serum total IgE is coinherited with a trait for bronchial hyperresponsiveness and that a gene governing bronchial hyperresponsiveness is located near a major locus that regulates serum IgE levels on chromosome 5q. These findings are consistent with the existence of one or more genes on chromosome 5q31-q33 causing susceptibility to asthma.


Source Information

From University Hospital, Groningen, the Netherlands (D.S.P.); the University of Maryland School of Medicine, Baltimore (E.R.B., P.J.A.); the Asthma Center, Beatrixoord, Haren, the Netherlands (C.I.M.P.); and Johns Hopkins University School of Medicine, Baltimore (K.J.H., J.X., D.A.M., R.C.L.).

Address reprint requests to Dr. Levitt at Meyer 8-134, 600 N. Wolfe St., Johns Hopkins Hospital, Baltimore, MD 21287-7834.

Full Text of this Article


This article has been cited by other articles:



HOME  |  SUBSCRIBE  |  SEARCH  |  CURRENT ISSUE  |  PAST ISSUES  |  COLLECTIONS  |  PRIVACY  |  TERMS OF USE  |  HELP  |  beta.nejm.org

Comments and questions? Please contact us.

The New England Journal of Medicine is owned, published, and copyrighted © 2009 Massachusetts Medical Society. All rights reserved.