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Environmental exposure and the ageing lung.
In: Respiratory Physiology: New Knowledge, Better Diagnosis. 2025. 259-276 (ERS Monog. ; 2025-April)
Ageing leads to a decline in lung function, with vital parameters like FEV1 and FVC decreasing from 35 years of age, and a sharper drop in FEV1 after 65 years of age. Structural changes include reduced bronchiole density, enlarged alveoli and increased lung rigidity due to collagen build-up. Ageing also impairs the respiratory response to hypoxaemia and hypercapnia, and reduces mucociliary clearance. Cellular hallmarks such as telomere shortening, mitochondrial dysfunction and chronic inflammation contribute to lung ageing. Air pollution, a key risk factor for respiratory diseases like COPD, further exacerbates lung decline, particularly in older adults, due to oxidative stress. Pollutants cause oxidative damage and protein modifications, and may accelerate cellular senescence. While mechanistic insights remain limited, the impact of air pollutants on lung health is clear. Future research should address emerging threats like microplastics and the role of lifestyle and genetic factors, as political efforts to improve air quality continue.
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Publication type
Article: Edited volume or book chapter
Language
english
Publication Year
2025
HGF-reported in Year
2025
ISSN (print) / ISBN
2312-508X
e-ISSN
2312-5098
Book Volume Title
Respiratory Physiology: New Knowledge, Better Diagnosis
Journal
ERS Monograph
Quellenangaben
Volume: 2025-April,
Issue: 107,
Pages: 259-276
Reviewing status
Peer reviewed
Institute(s)
Institute of Lung Health and Immunity (LHI)
POF-Topic(s)
30202 - Environmental Health
Research field(s)
Lung Research
PSP Element(s)
G-501600-005
Scopus ID
105005213712
Erfassungsdatum
2025-05-26