Long-Acting Beta Agonists: Salmeterol and Formeterol

Salmeterol and Formeterol
Two long-acting ß 2 -adrenergic agonists (LABAs), salmeterol and formoterol, have been demonstrated to be safe and effective agents in children, both in terms of bronchodilation and prevention of exercise-induced bronchospasm. Their onsets of action differ, with formoterol having an onset similar to albuterol (3 minutes), while salmeterol has a slower onset of action (10–20 minutes). Following a single-dose administration, both agents demonstrate durations of action up to 12 hours. Following regular twice-daily administration, bronchodilation remains effective; however, a level of tolerance (or tachyphylaxis) (more…)

Cromolyn, Nedocromil, Theophylline: Asthma Medications

asthma medications
Cromolyn sodium and nedocromil sodium are inhaled agents that are alternatives to inhaled corticosteroids (ICS) in the management of mild persistent asthma in children. Both drugs have been shown to possess anti inflammatory properties through nonsteroidal mechanisms, although the exact mechanisms for their actions remain unclear. (more…)

Sublingual Immunotherapy Mechanisms

sublingual immunotherapy
The immunologic mechanisms of sublingual immunotherapy are less established. In Cochrane analysis, the authors concluded that there was an increase in IgG4 but no stable effect on IgE levels in adults. In addition, the induction of allergen-specific IgA has been reported. There are conflicting data concerning lympho-proliferative responses. So far the evidence on changes in Th1/Th2/Treg activity induced by sublingual immunotherapy need to be confirmed. The effects on T-cell reactivity and cytokine secretion show strong variation in a number of studies. (more…)

Antileukotriene Drugs for Airway Hyperresponsiveness & Asthma Treatment

antileukotriene
A variety of proinflammatory cells, mediators, and cytokines orchestrate the development of airway hyperresponsiveness, which results in the episodic airflow obstruction characteristic of asthma. As a consequence, modulation of the underlying disease process with antii-nflammatory agents is firmly established as being the cornerstone of successful management. Inhaled corticosteroids are the most potent antiinflammatory agents available and satisfactorily suppress underlying airway inflammation in most individuals. (more…)

Allergy Immunotherapy with Depigmented Glutaraldehyde-Polymerized Extracts

Allergy Immunotherapy
Allergic rhinitis is a very common problem associated with poor quality of life, reductions in social and work activities and poor interpersonal relationships. The main goal of the management of allergic rhinitis is to improve the quality of life. Immunotherapy is a specific therapy for allergic rhinitis and several reports have documented the safety and efficacy of this treatment . Safety has been a key issue in immunotherapy and various modalities are being investigated to make allergy immunotherapy more tolerable and safe to administer. (more…)

Phospholipase A2 Inhibitor Impacts on Inhaled Allergen Challenge In Subjects With Asthma

Phospholipase A2 Inhibitor
In asthma, the secretory phospholipases A2 (sPLA2) have been implicated in the release of arachidonic acid from cellular membranes, the generation of lysophospholipids, the sPLA2-mediated activation of cellular PLA2 (cPLA2) with increased Leukotriene Receptor Antagonist synthesis, and the breakdown of surfactant. In this double-blind, placebo-controlled, random-order crossover study, a potent inhibitor of sPLA2, LY333013, was assessed. (more…)

Tumour Necrosis Factor Alpha in Symptomatic Corticosteroid-Dependent Asthma

Tumour Necrosis Factor Alpha
Tumour necrosis factor alpha (TNF-a) is a major therapeutic target in a range of chronic inflammatory disorders involving neutrophils and its excess production is characterized by a Th1-type immune response. Asthma is regarded as a Th2-type disorder when associated with atopy, (more…)

Nebulized Lidocaine for Asthma Treatment and Cough

Nebulized Lidocaine
Lidocaine is a local anaesthetic that possesses the ability to potently shorten eosinophil survival. This study assessed the safety and efficacy of nebulized lidocaine in a randomized, placebo-controlled study in patients with mild to moderate asthma.

Fifty subjects were recruited (18 male and 32 female) to receive lidocaine (25) or placebo (25). All the subjects had a pre-bronchodilator FEV 1 of 60–125% of the predicted normal value and were treated daily with inhaled glucocorticoids (but not systemic glucocorticoids) and bronchodilators for at least 2 months. (more…)

Exercise Induced Asthma Symptoms: How to Avoid the Attack

exercise induced asthma

This article focuses on symptoms of exercise induced asthma. Exercise can be a trigger factor when asthma is not well controlled. People with asthma should not avoid any form of exercise. It is advisable to exercise to keep the lungs and body in good physiological state. Doing regular exercise will strengthens the respiratory muscles. It will also increase your immune system and maintain a healthy weight. Those advantages can improve body health condition in the long term. The key to asthma exercise is to have a total control of asthma symptoms before to starting a fitness program. (more…)

Exercise Induced Asthma Causes and Symptoms

Exercise-induced asthma is a feeling of shortness of breath, with the presence of cough, wheezing, and chest tightness after physical exercise.

Normally the bronchial tree and bronchial vessels responds to exercise with increasing radius of the interior of the bronchi (bronchodilation), (more…)

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