asthma is a chronic inflammatory disease of the airway with extensive airway remodeling. the ethical issues associated with the studies in asthmatic patients, required development of animal model of asthma. animal models of asthma can provide valuable information on several features of asthma pathogenesis and treatment. although these models cannot carry out all clinical features, they are valu...

clinical asthma and airway responsiveness appear to be less severe when diabetes is superimposed. the aim of the present study was to determine the possible role of nitric oxide (no) in the airway reactivity under diabetic and diabetic-allergic conditions. twenty-five male guinea-pigs were divided into five groups of five each as follows: diabetic, antigen sensitized, diabetic- antigen sensitiz...

Objective(s): Th2 response is related to the aetiology of asthma, but the underlying mechanism is unclear. To address this point, the effect of nebulized inhalation of inactivated Mycobacterium phlei on modulation of asthmatic  airway  inflammation was investigated. Materials and Methods: 24 male BALB/c mice were randomly divided into three groups: control group (Group A), asthma model group (G...

objective(s): th2 response is related to the aetiology of asthma, but the underlying mechanism is unclear. to address this point, the effect of nebulized inhalation of inactivated mycobacterium phlei on modulation of asthmatic  airway  inflammation was investigated. materials and methods: 24 male balb/c mice were randomly divided into three groups: control group (group a), asthma model group (g...

In asthmatic subjects there is a pronounced diurnal variation in bronchial responsiveness. If this phenomenon is due to variation in factors that control drug delivery, then it should be paralleled by a similar variation in competitive antagonist blockade. In order to study this possibility, we performed the methacholine challenge test and after 45 minutes, administered atropine by inhalat...

in asthmatic subjects there is a pronounced diurnal variation in bronchial responsiveness. if this phenomenon is due to variation in factors that control drug delivery, then it should be paralleled by a similar variation in competitive antagonist blockade. in order to study this possibility, we performed the methacholine challenge test and after 45 minutes, administered atropine by inhalation. ...

Asthma is a complex disease of airway inflammation, which results in airway remodeling and hyper-responsiveness.1 Because asthma-related symptoms are not specific to asthma, diagnosis requires objective data from pulmonary function tests (PFT). Bronchodilator responsiveness and airway responsiveness to provocational stimuli (eg, methacholine, dry-gas hyperpnea) help establish the diagnosis of a...

BACKGROUND We previously reported that N(omega)-nitro-L-arginine methyl ester (L-NAME) enhances airway responsiveness to inhaled serotonin in cats treated with atropine and propranolol. OBJECTIVE To further elucidate the role of nitric oxide (NO) in airway responsiveness, we investigated whether L-NAME induces airway hyperresponsiveness to serotonin and acetylcholine (ACh) in animals with int...