{"entity": "publication", "iuid": "8d4fad744d0d42c29b0db5d232cde982", "timestamp": "2026-05-19T06:37:17.540Z", "links": {"self": {"href": "https://publications.scilifelab.se/publication/8d4fad744d0d42c29b0db5d232cde982.json"}, "display": {"href": "https://publications.scilifelab.se/publication/8d4fad744d0d42c29b0db5d232cde982"}}, "title": "Novel non-invasive particles in exhaled air method to explore the lining fluid of small airways-a European population-based cohort study.", "authors": [{"family": "Hussain-Alkhateeb", "given": "Laith", "initials": "L"}, {"family": "Bake", "given": "Bj\u00f6rn", "initials": "B"}, {"family": "Holm", "given": "Mathias", "initials": "M"}, {"family": "Emilsson", "given": "\u00d6ssur", "initials": "\u00d6"}, {"family": "Mirgorodskaya", "given": "Ekaterina", "initials": "E"}, {"family": "Olin", "given": "Anna-Carin", "initials": "A"}], "type": "journal article", "published": "2021-01-00", "journal": {"title": "BMJ Open Respir Res", "issn": "2052-4439", "issn-l": null, "volume": "8", "issue": "1", "pages": null}, "abstract": "Respiratory tract lining fluid of small airways mainly consists of surfactant that can be investigated by collection of the particles of exhaled aerosol (PExA) method. This offers an exciting prospect to monitor small airway pathology, including subjects with asthma and smokers.\r\n\r\nTo explore the influence of anthropometric factors and gender on phospholipids, surfactant protein A (SP-A) and albumin of the lining fluid of small airwaysand to examine the association with asthma and smoking. Furthermore, to examine if the surfactant components can predict lung function in terms of spirometry variables.\r\n\r\nThis study employs the population-based cohort of the European Community Respiratory Health Survey III, including participants from Gothenburg city, Sweden (n=200). The PExA method enabled quantitative description and analytical analysis of phospholipids, SP-A and albumin of the lining fluid of small airways.\r\n\r\nAge was a significant predictor of the phospholipids. The components PC14:0/16:0, PC16:0/18:2 (PC, phosphatidylcholine) and SP-A were higher among subjects with asthma, whereas albumin was lower. Among smokers, there were higher levels particularly of di-palmitoyl-di-phosphatidyl-choline compared with non-smokers. Most phospholipids significantly predicted the spirometry variables.\r\n\r\nThis non-invasive PExA method appears to have great potential to explore the role of lipids and proteins of surfactant in respiratory disease.", "doi": "10.1136/bmjresp-2020-000804", "pmid": "33402401", "labels": {"Glycoproteomics and MS Proteomics": "Collaborative"}, "xrefs": [{"db": "pmc", "key": "PMC7786806"}, {"db": "pii", "key": "8/1/e000804"}], "notes": [], "created": "2023-03-07T14:35:21.024Z", "modified": "2024-01-16T13:46:30.927Z"}