The use of leukotriene receptor antagonists and 5-lipoxygenase inhibitors in bronchial asthma treatment
Asthma is a chronic inflammatory disorder of airways. It is characterised by bronchoconstriction, oedema and airways mucus hypersecretion. The main clinical features of asthma are dyspnea, cough, wheezing and heaviness in the chest. The pathology of asthma is characterised by presence of many inflam...
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Published in | Polski merkuriusz lekarski Vol. 5; no. 30; p. 317 |
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Main Authors | , , , |
Format | Journal Article |
Language | Polish |
Published |
Poland
01.12.1998
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Abstract | Asthma is a chronic inflammatory disorder of airways. It is characterised by bronchoconstriction, oedema and airways mucus hypersecretion. The main clinical features of asthma are dyspnea, cough, wheezing and heaviness in the chest. The pathology of asthma is characterised by presence of many inflammatory mediators, where the most important are cysteinyl leukotriens. Leukotriens C4, D4 and E4 are 1000 times more potent than histamine in contracting airways smooth muscles. Inhibitors of arachidonic acid metabolism have been used in asthma treatment. They can block the 5-lipoxygenase enzyme and/or 5-lipoxygenase-activating-proteine (FLAP), or can block the cysteinyl leukotriene receptors on the cell surface. Many inhibitors of arachidonic acid metabolism have been found during experimental trials. But only two are used as a drugs: zafirlukast and montelukast (leukotriene receptor inhibitors) montelukast and zileuton (5-lipoxygenase inhibitors) having the best efficacy in asthma treatment. Chronic treatment with these drugs results in a decrease of asthmatic symptoms, improvement of lung function (FEV1, PEF) and decreased usage of other medications--beta-adrenergic agonists and inhaled steroids. It has been proved that zafirlukast and zileuton show the high efficacy in mild-to-moderate asthma, exercise-induced asthma, allergen-induced asthma and aspirin-induced asthma. These oral drugs have been shown to course only mild adverse effects (such as temporary elevation in liver function tests, gastrointestinel disturbances, headache). Clinical usage of zafirlukast, montelukast and zileuton is limited in our country, they are hardly approachable on the market and the cost of treatment is high. |
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AbstractList | Asthma is a chronic inflammatory disorder of airways. It is characterised by bronchoconstriction, oedema and airways mucus hypersecretion. The main clinical features of asthma are dyspnea, cough, wheezing and heaviness in the chest. The pathology of asthma is characterised by presence of many inflammatory mediators, where the most important are cysteinyl leukotriens. Leukotriens C4, D4 and E4 are 1000 times more potent than histamine in contracting airways smooth muscles. Inhibitors of arachidonic acid metabolism have been used in asthma treatment. They can block the 5-lipoxygenase enzyme and/or 5-lipoxygenase-activating-proteine (FLAP), or can block the cysteinyl leukotriene receptors on the cell surface. Many inhibitors of arachidonic acid metabolism have been found during experimental trials. But only two are used as a drugs: zafirlukast and montelukast (leukotriene receptor inhibitors) montelukast and zileuton (5-lipoxygenase inhibitors) having the best efficacy in asthma treatment. Chronic treatment with these drugs results in a decrease of asthmatic symptoms, improvement of lung function (FEV1, PEF) and decreased usage of other medications--beta-adrenergic agonists and inhaled steroids. It has been proved that zafirlukast and zileuton show the high efficacy in mild-to-moderate asthma, exercise-induced asthma, allergen-induced asthma and aspirin-induced asthma. These oral drugs have been shown to course only mild adverse effects (such as temporary elevation in liver function tests, gastrointestinel disturbances, headache). Clinical usage of zafirlukast, montelukast and zileuton is limited in our country, they are hardly approachable on the market and the cost of treatment is high. |
Author | Słomiński, J M Mincewicz, G Kuziemski, K Sopel, R |
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SubjectTerms | Asthma - drug therapy Health Care Costs Humans Leukotriene Antagonists - pharmacology Leukotriene Antagonists - therapeutic use Lipoxygenase Inhibitors - pharmacology Lipoxygenase Inhibitors - therapeutic use |
Title | The use of leukotriene receptor antagonists and 5-lipoxygenase inhibitors in bronchial asthma treatment |
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