1. Measurements of airways resistance and lung volume were made in sixteen patients with chronic bronchitis and ten patients without chest disease before and after intravenous propranolol administration. 2. The airways resistance of the patients with chronic bronchitis increased significantly after propranolol administration but in the control subjects there was no significant increase. 3. In t...

The IgG subclass specific immune response against pneumococcal type 3 polysaccharide antigen before and after immunisation in healthy children and children with recurrent bronchitis was studied. Recurrent bronchitis was defined as three or more episodes a year, during at least two consecutive years, of bronchopulmonary infection, productive cough with or without fever, and/or diffuse rales by p...

The human health impacts caused due to exposure to criteria outdoor air pollutants PM2.5, PM10 and NO2 were assessed in present study. The human health effects associated with exposure to atmospheric air pollution in NCT Delhi were estimated utilizing the AirQ+ v1.3 software tool integrated with Ri-MAP during the study period 2013-2018 considering 80% of the who...

In 1960, Reid described a method of quantitating the bronchial mucous gland hypertrophy that occurs in chronic bronchitis. She expressed the bronchial mucous gland size as a ratio of the bronchial mucous gland thickness to the thickness of the bronchial wall, as measured from the epithelial basement membrane to the inner perichondrium. This ratio was increased in chronic bronchitis, and there w...

background: infectious bronchitis virus (ibv) is the causative agent of avian infectious bronchitis, which is characterized by respiratory, reproductive, and renal signs. ibv is a highly variable virus with a large number of genotypes. s1 gene sequencing has been used for molecular epidemiological studies and genotypic characterization of ibv. objective: to better understand the molecular epide...

BACKGROUND & OBJECTIVES Exposure to air pollution due to combustion of biomass fuels remains one of the significant risk factors for chronic respiratory diseases such as chronic bronchitis. There is a need to identify the minimum threshold level of biomass index that is significantly associated with chronic bronchitis. This study was undertaken to identify a threshold for biomass exposure index...

BACKGROUND The purpose of this review is to present the evidence for the diagnosis and treatment of cough due to acute bronchitis and make recommendations that will be useful for clinical practice. Acute bronchitis is one of the most common diagnoses made by primary care clinicians and emergency department physicians. It is an acute respiratory infection with a normal chest radiograph that is m...