PMID- 34435248 OWN - NLM STAT- MEDLINE DCOM- 20220404 LR - 20220405 IS - 1432-1246 (Electronic) IS - 0340-0131 (Linking) VI - 95 IP - 2 DP - 2022 Mar TI - Induced sputum abnormalities in gas station attendants. PG - 341-349 LID - 10.1007/s00420-021-01755-2 [doi] AB - PURPOSE: To investigate inflammatory changes in the induced sputum (IS) of gas station attendants (GSAs) at risk of exposure to fuel vapors through inhalation and susceptible to respiratory complaints and impaired lung function. METHODS: Hypertonic saline-IS was collected from 52 GSAs who had never smoked (42 men, age = 35.9 +/- 8.9 years) and had no known comorbidities. A group of 22 non-smokers (11 men, age = 30.5 +/- 5.1 years) selected from the University staff served as control. The GSAs answered a questionnaire and underwent spirometry and chest tomography. A total of 15 inflammatory biomarkers associated with inflammation, including cytokines, chemokines, and mediators of immunological response, were also measured. RESULTS: The most common symptoms of GSAs were coughing (42.3%) and dyspnea (59.6%) based on the New York Heart Association (NYHA; Class II) classification. Significant elevations (p < 0.05) in forced vital capacity and forced expiratory volume within the first second were observed in the GSAs relative to those in the controls (GSA vs. control: 99 +/- 12% vs. 90 +/- 9% and 94 +/- 11% vs. 87 +/- 10%, respectively). The GSAs had a lower percentage of IS lymphocytes than that in the control group (4.5 +/- 5.7% vs. 7.7 +/- 9.8%). The GSAs also had significantly lower concentrations of IL-4, IL-5, IL-10, IL-12(P70), IFN-gamma, and MIP-1alpha, but IL-3 levels were higher. No differences were observed in the airway thickness and the amount of emphysema between the GSAs and the controls. CONCLUSION: Despite normal lung function and absence of abnormalities on HRCT, GSAs have a higher frequency of respiratory complaints, with evidence of impairment of lymphocytic activity in the airways. CI - (c) 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - da Silva, Tiago Henrique Garcia AU - da Silva THG AD - Internal Medicine Department. Medical School of Ribeirao Preto, University of Sao Paulo, Avenida Bandeirantes 3900, Ribeirao Preto, SP, 14048-900, Brazil. FAU - Gastaldi, Ada Clarice AU - Gastaldi AC AUID- ORCID: 0000-0001-9845-3611 AD - Department of Health Sciences, Medical School of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil. FAU - Santos, Marcel Koenigkam AU - Santos MK AUID- ORCID: 0000-0002-7160-4691 AD - Department of Medical Imaging, Hematology and Oncology, Medical School of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil. FAU - de Martinis, Bruno Spinosa AU - de Martinis BS AUID- ORCID: 0000-0002-2702-5190 AD - Department of Chemistry, Faculty of Philosophy, Science and Languages of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil. FAU - Baddini-Martinez, Jose AU - Baddini-Martinez J AUID- ORCID: 0000-0001-8160-5084 AD - Internal Medicine Department. Medical School of Ribeirao Preto, University of Sao Paulo, Avenida Bandeirantes 3900, Ribeirao Preto, SP, 14048-900, Brazil. baddini@fmrp.usp.br. LA - eng GR - 2016/10685-9/Fundacao de Amparo a Pesquisa do Estado de Sao Paulo/ PT - Journal Article DEP - 20210825 PL - Germany TA - Int Arch Occup Environ Health JT - International archives of occupational and environmental health JID - 7512134 SB - IM MH - Adult MH - Forced Expiratory Volume MH - Humans MH - *Lung MH - Male MH - Spirometry MH - *Sputum MH - Vital Capacity OTO - NOTNLM OT - Airways OT - Chest tomography OT - Gas station attendants OT - Induced sputum OT - Pulmonary function OT - Volatile organic compounds EDAT- 2021/08/27 06:00 MHDA- 2022/04/05 06:00 CRDT- 2021/08/26 06:22 PHST- 2021/02/05 00:00 [received] PHST- 2021/07/01 00:00 [accepted] PHST- 2021/08/27 06:00 [pubmed] PHST- 2022/04/05 06:00 [medline] PHST- 2021/08/26 06:22 [entrez] AID - 10.1007/s00420-021-01755-2 [pii] AID - 10.1007/s00420-021-01755-2 [doi] PST - ppublish SO - Int Arch Occup Environ Health. 2022 Mar;95(2):341-349. doi: 10.1007/s00420-021-01755-2. Epub 2021 Aug 25.