Within a year we have observed 19 patients (16 females) who presented to the Ear-Nose-Throat (ENT) department of our hospital for an isolated cough present from one month to 14 years duration. Their ENT medical examination was normal, except for one subject who complained of chronic rhinitis. They were normotensive and did not use an angiotensin converting enzyme inhibitor. In all of them bronc...

INTRODUCTION Cough is significant health problem with greater implication for impaired quality of life. Acute and chronic cough due to infective (viral/bacterial), allergic conditions or bronchial asthma including cough variant asthma are often treated with combination of mucolytics, expectorants and bronchodilators. Bronchodilators reduces cough sensitivity, promotes clearance of cough secreti...

BACKGROUND Cough variant asthma (CVA) is a cause of chronic cough and a precursor of typical asthma. We retrospectively examined the longitudinal change in bronchial responsiveness and cough reflex sensitivity in CVA patients with respect to the effect of long-term inhaled corticosteroids (ICS). METHODS Provocative concentration of methacholine causing a 20% fall in forced expiratory volume i...

The pathophysiologic processes distinguishing classic asthma (CA), cough-variant asthma (CVA), and methacholine (MCh)-induced cough but normal airway sensitivity (COUGH) are inadequately understood and may be a result of differences in the ability to bronchodilate following a deep inspiration (DI). The purpose of this study was to compare the bronchodilating effect of DIs in individuals with CA...

BACKGROUND Persistent cough is a common clinical problem. Despite thorough investigation and empirical management, a considerable proportion of those people with subacute and chronic cough have unexplained cough, for which treatment options are limited. While current guidelines recommend inhaled corticosteroids (ICS), the research evidence for this intervention is conflicting. OBJECTIVES To a...

Purpose: To investigate the effect of Pinellia polysaccharide on airway remodeling in cough-variant asthmatic rats, and involvement PI3K/AKT signal route process.
 Methods: Seventy-five Sprague-Dawley (SD) rats were assigned to 5 groups: blank control, model, low-dose (100 mg/kg), medium-dose (200 mg/kg) high-dose (400 groups, each with 15 rats. Immunoblot assay was employed measure relati...

BACKGROUND Chronic cough is one of the most challenging symptoms to diagnose and treat, not only because of the variety of underlying disorders but also its varying susceptibility to treatments. Etiological studies of chronic cough vary depending on the clinical settings and the particular interests of investigators. OBJECTIVES The purposes of this study were first to categorize the etiology ...