Aspirin-Induced Asthma Treatment with Antileukotrienes

Aspirin Asthma
The prevalence of aspirin-sensitive asthma is uncertain although it may exist in up to 20% of all asthmatics patients. The characteristic features include profound bronchoconstriction asthma following aspirin ingestion, rhinosinusitis, nasal polyps, and abdominal cramps. Aspirin and nonsteroidal antiinflammatory drugs selectively inhibit COX-1, which in turn shunts arachidonic acid down the 5-lipoxygenase activating protein pathway, causing overproduction of cysteinyl leukotrienes. As a consequence, elevated levels of cysteinyl leukotrienes can be found in bronchial asthma and nasal aspirates, and in urine following aspirin challenge. (more…)

Budesonide Inhalation Dose versus Maintenance Treatment in Asthma Exacerbations

budesonide inhalation
This study was similar to the study of Harrison and colleagues, which looked at doubling the dose of inhaled corticosteroid during an asthma exacerbation. This study investigated whether doubling the dose of budesonide inhalation in patients on regular inhaled budesonide would be beneficial during an asthma exacerbation. (more…)

Tumour Necrosis Factor Effects on Antagonism On Allergen-Mediated Asthmatic Airway Inflammation

Tumour Necrosis Factor is a pro-inflammatory cytokine implicated in the pathogenesis of asthmatic airway inflammation, hyper-reactivity and remodelling. The primary aim of the trial was to assess whether TNF antagonism, using a soluble Tumour Necrosis Factor receptor (TNFR:Fc etanercept, Enbrel ® ), can attenuate eosinophilic airway inflammation in patients with mild to moderate allergic asthma. (more…)

Effect Of Pet Removal On Pet Allergic Asthma

Allergen avoidance has been recommended in the management of allergic asthma children. Very few studies have assessed the effect of pet removal on pet allergic asthma. The authors examined the effect of pet removal from homes on pulmonary function testing, bronchial
hyper-responsiveness and medication use. This was a prospective, controlled but non-randomized and open study. Subjects included 20 symptomatic patients with newly diagnosed pet allergic asthma who were keeping domestic animals, including hamsters, cats, dogs and ferrets, and were sensitized to these animals. (more…)

Daily Versus As-Needed Corticosteroids For Mild Persistent Asthma

The guidelines for asthma management recommend the use of regular inhaled corticosteroid in patients with mild persistent asthma, but in clinical practice it has been observed that patients often do not feel the need to use their inhaled corticosteroid regularly, which may lead to poor compliance. One possible reason is that because there are no symptoms the patients are not reminded to use their medications. Hence, the use of intermittent inhaled corticosteroid during worsening of asthma may be an option that could be considered in these subgroups of asthmatics. (more…)

Inhaled Fluticasone Inhaler with Intravenous Hydrocortisone Comparison

The role of oral and inhaled corticosteroids in the management of acute asthma is well known. This study compared the effects of inhaled fluticasone propionate with those of intravenous hydrocortisone in patients with acute severe asthma.

One hundred and six patients with acute severe asthma were assigned in a double-blind, randomized manner to receive fluticasone propionate by means of a metered-dose inhaler into a spacer device in a dose of two puffs at 10-min intervals (3000 µg fluticasone propionate/h), or intravenous hydrocortisone. (more…)

Symptoms of Asthma: Inflammation Airways and Chest Tightness

Symptoms of Asthma Inflammation
The symptoms of asthma occur together with variations in the diameter of medium- size airways such that it is increasingly difficult to exhale. Narrowing of the airways can occur because of smooth muscle contraction, edema or swelling of the wall, or increased mucus in the airways. However, it is increasingly clear that the pathologic event underlying most cases of asthma is acute inflammation of the airway walls. (more…)

Dual Tachykinin NK1/NK2 Antagonist Dnk333 Inhibits Neurokinin A-Induced Bronchoconstriction In Asthma Patients

The sensory neuropeptides substance P and neurokinin A (NKA) are members of the tachykinin family, present within pulmonary sensory nerves and immune cells. In the airways they mainly interact with tachykinin (NK1, NK2) receptors to induce bronchoconstriction, bronchial hyperresponsiveness, mucus secretion, vasodilatation, increased vascular permeability, and attraction and activation of inflammatory cells. In this randomized, double-blind, placebocontrolled crossover multicentre trial the effects of a single dose of a dual tachykinin NK1/NK2 receptor, DNK333, were assessed on NKA-induced bronchoconstriction in asthma. (more…)