Asthma phenotypes.

Abstract:

PURPOSE OF REVIEW:Asthma is a heterogeneous disorder presenting with many phenotypes. Precise phenotypic definition has eluded the medical research community for years, despite recognition of different disease subtypes. Improved phenotypic characterization and knowledge of underlying pathobiology is necessary for linkage of specific genotypes with clinical disease manifestations. RECENT FINDINGS:Phenotyping has been difficult because asthma is likely to be comprised of overlapping syndromes with varying origins and heterogeneous pathobiology. Currently, the field is too reliant on classification by trigger or symptoms. Since genotypic and phenotypic heterogeneity are inherent in asthma, patients presenting with different asthma phenotypes may need tailored therapies. Studies have begun to link genetics with disease mechanism and therapeutic response. As disease etiology, onset, progression and severity vary greatly among patients, however, the relative contribution of genetic factors may be difficult to ascertain. Definition of the full array of complex biological consequences of molecular target modulation is a prerequisite for therapies based on this concept. SUMMARY:The advent of targeted therapies for asthma and clinical trials based on phenotype and genotype have raised interest in more accurate description of asthma phenotypes. Therapies based on phenotypic and genotypic characteristics may be useful in asthma management. A variety of factors, however, must be addressed before such approaches become standard.

journal_name

Curr Opin Pulm Med

authors

Kiley J,Smith R,Noel P

doi

10.1097/MCP.0b013e328011b84b

subject

Has Abstract

pub_date

2007-01-01 00:00:00

pages

19-23

issue

1

eissn

1070-5287

issn

1531-6971

pii

00063198-200701000-00005

journal_volume

13

pub_type

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