Abstract
Asthma is a chronic disorder causing inflammation and reversible airway obstruction that affects approximately 300 million individuals worldwide. The incidence of asthma has nearly doubled in the past three decades resulting in higher rates of morbidity, mortality and health care costs. Despite the availability of several classes of asthma medications such as β-agonists, leukotriene modifiers and corticosteroids, up to 50% of asthmatics do not benefit from one or more of these drugs. Studies have shown that asthma and drug response phenotypes such as forced expiratory volume in one second (FEV1) are heritable traits, indicating a genetic component of variable response to asthma drugs. This review summarizes the findings of pharmacogenetic investigations on the three main classes of asthma medications. In addition, the limitations of these genetic studies are discussed and future research avenues are proposed to identify novel genetic factors. Although numerous genes have been associated with variable response to common asthma drugs, results are often contradictory across different studies, and remain to be confirmed in larger replication cohorts. Nevertheless, literature in asthma pharmacogenetics demonstrates that genetic variants influence response to asthma treatments and may be used for predictive testing prior to drug administration to avoid adverse reactions and increase drug efficacy.
Current Pharmaceutical Design
Title: Pharmacogenetics of Asthma Therapy
Volume: 15 Issue: 32
Author(s): Qing Ling Duan and Kelan G. Tantisira
Affiliation:
Abstract: Asthma is a chronic disorder causing inflammation and reversible airway obstruction that affects approximately 300 million individuals worldwide. The incidence of asthma has nearly doubled in the past three decades resulting in higher rates of morbidity, mortality and health care costs. Despite the availability of several classes of asthma medications such as β-agonists, leukotriene modifiers and corticosteroids, up to 50% of asthmatics do not benefit from one or more of these drugs. Studies have shown that asthma and drug response phenotypes such as forced expiratory volume in one second (FEV1) are heritable traits, indicating a genetic component of variable response to asthma drugs. This review summarizes the findings of pharmacogenetic investigations on the three main classes of asthma medications. In addition, the limitations of these genetic studies are discussed and future research avenues are proposed to identify novel genetic factors. Although numerous genes have been associated with variable response to common asthma drugs, results are often contradictory across different studies, and remain to be confirmed in larger replication cohorts. Nevertheless, literature in asthma pharmacogenetics demonstrates that genetic variants influence response to asthma treatments and may be used for predictive testing prior to drug administration to avoid adverse reactions and increase drug efficacy.
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Cite this article as:
Duan Ling Qing and Tantisira G. Kelan, Pharmacogenetics of Asthma Therapy, Current Pharmaceutical Design 2009; 15 (32) . https://dx.doi.org/10.2174/138161209789649510
DOI https://dx.doi.org/10.2174/138161209789649510 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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