bronchial hyperresponsiveness

bronchial hyperresponsiveness

A term referring to exaggerated bronchial constriction of unknown pathogenesis, which most commonly occurs in asthmatics in response to nonspecific provocation (inhalation of various bronchoconstrictors), but also to physical challenges—e.g., exercise, dry or cold air, hypertonic or hypotonic aerosols.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

bronchial hyperresponsiveness

Exaggerated bronchial constriction most common in asthma, in response to nonspecific provocation, inhalation of various bronchoconstrictors, but also to physical challenges–eg, exercise, dry or cold air, hypertonic or hypotonic aerosols
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The bronchial challenge test was considered positive when a 15% decrease in [FEV.sub.1] was observed, indicating bronchial hyperresponsiveness (BHR).
In their paper, authors first illustrated that a trait for an elevated level of serum total IgE was co-inherited with a trait for bronchial hyperresponsiveness and that a gene governing bronchial hyperresponsiveness is located near a major locus that regulates serum IgE levels on chromosome 5q.
Namely, exposure to tobacco smoke causes the activation of Th2 lymphocytes [12, 13], an increase in total IgE [14], allergic sensibilization [15], and an increase in bronchial hyperresponsiveness (BHR) [16].
In a Canadian multicenter study of more than 700 patients with a history of physician-diagnosed asthma within the past 5 years, current asthma was ruled out in fully 33% of them on the basis of no deterioration of asthma symptoms, no evidence of reversible airway obstruction, and no bronchial hyperresponsiveness after all asthma drugs were tapered off (JAMA.
In one study, "Patients with bronchial hyperresponsiveness to histamine provocation presented significantly more often with ...
Han, "Useful parameters of bronchial hyperresponsiveness measured with an impulse oscillation technique in preschool children," Journal of Asthma, vol.
Studies showed bacterial diversity and composition of the airway were significantly associated with the severity of airflow obstruction [14] and bronchial hyperresponsiveness [51] and that the abundance of Proteobacteria was associated with worsening asthma control questionnaire (ACQ) scores and positively correlated with Th-17 associated gene expression [7].
Watson et al., "Allelic association of gene markers on chromosomes 5q and 11q with atopy and bronchial hyperresponsiveness," American Journal of Respiratory and Critical Care Medicine, vol.
Subjects with perennial rhinitis were more likely to have current asthma and bronchial hyperresponsiveness than subjects without perennial rhinitis.
Physical activity and bronchial hyperresponsiveness: European Community Respiratory Health Survey II.
Effect of inhaled budesonide on bronchial hyperresponsiveness in adolescents with clinical remission of asthma.
Another explanation for women's greater response to indoor smoke exposure may originate from their bronchial hyperresponsiveness to air pollution.