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J Allergy Clin Immunol. 2003 Oct;112(4):717-22.

Association of a disintegrin and metalloprotease 33 (ADAM33) gene with asthma in ethnically diverse populations.

Author information

1
Center for Human Genomics, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.

Abstract

BACKGROUND:

Asthma is a complex genetic disease characterized by reversible intermittent airway obstruction and respiratory symptoms primarily caused by acute and chronic bronchial inflammation. Recently, a gene potentially involved in airway remodeling, a disintegrin and metalloprotease 33 (ADAM33), was implicated in asthma susceptibility.

OBJECTIVE:

We sought to determine whether polymorphisms in ADAM33 are associated with asthma or closely related phenotypes in 4 different asthma populations.

METHODS:

Eight single nucleotide polymorphisms (SNPs) were evaluated in the 3' portion of ADAM33 in 4 unique asthma populations (African American, US white, US Hispanic, and Dutch white). These SNPs were previously reported to be associated with asthma in white populations from the United States and United Kingdom.

RESULTS:

Significant associations were observed with at least one SNP and asthma in each population (P =.0009-.04). Related phenotypes that included total serum IgE levels and skin test responsiveness were also associated (P =.003-.05). However, no single SNP was associated across all populations. Additionally, haplotype analysis revealed that no single haplotype accounted for asthma susceptibility risk, although potential risk haplotypes existed within some of the populations.

CONCLUSION:

Replication of the original ADAM33 findings in these 4 additional asthma populations suggests that this gene (and perhaps others that interact with it) is important in the development and pathogenesis of asthma.

PMID:
14564349
DOI:
10.1016/s0091-6749(03)01939-0
[Indexed for MEDLINE]

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