• Fernanda Maria Machado Rodrigues, Dionei Ramos, Rafaella Fagundes Xavier, Juliana Tiyaki Ito, Alcirene Policarpo de Souza, Rômulo Araújo Fernandes, Rubens Cecchini, Renata Calciolari Rossi e Silva, Mariangela Macchione, Alessandra Choqueta de Toledo-Arruda, Flávia Alessandra Guarnier, and Ercy Mara Cipulo Ramos.
• Department of Physiotherapy, São Paulo State University (UNESP), Presidente Prudente, Brazil.
• Respir Med. 2014 Jul 1;108(7):999-1006.

IntroductionSmoking cessation promotes health benefits and, despite cigarette smoking be an important pro inflammatory stimulus, there are few studies concerning the nasal and systemic inflammation; as well as the mucociliary clearance behavior in smokers after short period of smoking cessation.AimTo evaluate the nasal and systemic inflammatory markers and mucociliary clearance behavior after 30 days of cigarette smoking abstinence.MethodsTwenty-five smokers were included and divided into two groups: abstinent smokers (n = 14) and current smokers (n = 11). Tumor necrosis factor alpha (TNF-α), interleukin (IL)-6, IL-8 and IL-10 were measured on nasal lavage and blood serum samples by ELISA at baseline and after 30 days. The mucociliary clearance, exhaled carbon monoxide (exCO) and carboxyhemoglobin (HbCO) were also measured at the same moments.ResultsThere was a decrease of TNF-α level only in blood serum at 30 days of abstinence compared to current smokers. The mucociliary clearance improved and there was a reduction in exCO and HbCO (p < 0.05 for all) after 30 days of smoking cessation.ConclusionThe short term smoking abstinence decreased systemic inflammation and improved nasal mucociliary clearance, despite not having changed the nasal inflammation.Copyright © 2014 Elsevier Ltd. All rights reserved.

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