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5-Lipoxygenase polymorphism and in-vivo response to leukotriene receptor antagonists.

Fowler SJ, Hall I, Wilson A, Wheatley A, Lipworth B

Eur J Clin Pharmacol. 2002;58( 3):187-90.

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Abstract

OBJECTIVE: To determine whether genetic polymorphisms of the core promoter region of the 5-lipoxygenase gene contribute to the clinical response to leukotriene receptor antagonists. METHODS: We retrospectively genotyped 52 asthmatics for mutations of this gene from four placebo-controlled studies measuring leukotriene receptor antagonist responses. All studies measured bronchodilator response, and bronchial hyperresponsiveness to adenosine monophosphate was measured in three studies ( n = 34). RESULTS: Of the 52 patients genotyped, 40 were homozygous wild type, 12 heterozygous, and none was homozygous mutant. There was no significant difference in any improvements conferred by leukotriene receptor antagonists versus placebo in the forced expiratory volume in 1 s (0.20 l for wild-type homozygotes and 0.01 l for heterozygotes), forced mid-expiratory flow rate (0.16 l/s and 0.14 l/s), peak expiratory flow rate (10 l/min and 29 l/min) and adenosine monophosphate 20% fall in forced expiratory volume in 1 s (2.8-fold shift and 2.3-fold shift) between the two genotypes. CONCLUSION: In our population, screening for this polymorphism as an aid to guiding treatment is probably not worthwhile. In addition, we found no difference between homozygous wild types and heterozygotes in terms of bronchodilator response or bronchial hyperresponsiveness with leukotriene receptor antagonists.

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Type of resource:
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Publication type:
Published date:
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Place of publication:
Germany
Volume:
58( 3)
Start page:
187
End page:
90
Pagination:
187-90
Access state:
Active

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Record metadata

Manchester eScholar ID:
uk-ac-man-scw:1d30794
Created:
2nd September, 2009, 13:42:22
Last modified:
2nd September, 2009, 13:42:22

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