| Literature DB >> 32989942 |
Abstract
Chronic bronchitis is associated with hypertrophy of airway submucosal glands and with mucus and squamous metaplasia of the surface epithelium. A historical review of research on these and other pathological changes is provided. Next, from annual reports of the Registrar-General's Office (and later the Office of National Statistics), death rates per unit population from acute and chronic bronchitis (a term that here includes chronic obstructive pulmonary disease [COPD]) are calculated for England and Wales from 1838 to the present. It is argued that a large increase in the death rate between 1838 and 1879, from all forms of bronchitis combined, was due primarily to increased levels of atmospheric coal smoke, whereas a decrease from 1879 to 1935 was due to progressively cleaner air. Between 1935 and the mid-1960s, mortality from chronic bronchitis among men increased dramatically, after which it has fallen, a pattern that parallels changes in cigarette smoking. Finally, a brief historical review of the treatments for chronic bronchitis is presented. JCOPDFEntities:
Keywords: airway mucosa; airway submucosal glands; cigarette smoking; coal smoke; industrial revolution
Year: 2020 PMID: 32989942 PMCID: PMC7883910 DOI: 10.15326/jcopdf.7.4.2020.0135
Source DB: PubMed Journal: Chronic Obstr Pulm Dis ISSN: 2372-952X