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Juliana Souza Uzeloto,1 Alessandra Choqueta de Toledo-Arruda,2 Bruna Spolador de Alencar Silva,1 Marjorie de Assis Golim,3 Aline Márcia Marques Braz,3 Fabiano Francisco de Lima,1 Isis Grigoletto,1 Ercy Mara Cipulo Ramos1 1São Paulo State University (UNESP), Faculty of Science and Technology, Department of Physiotherapy, Postgraduate Program in Physiotherapy, Presidente Prudente, São Paulo, Brazil; 2Department of Physiotherapy, Federal University of Rio de Janeiro, Rio De Janeiro, Brazil; 3São Paulo State University (UNESP), Botucatu Medical School, Postgraduate Program in Research & Development: Medical Biotechnology, Blood Center, Flow Cytometry Laboratory, Botucatu, São Paulo, BrazilCorrespondence: Juliana Souza Uzeloto Email juliana_uzeloto@hotmail.comAims: To evaluate the expressions of intracellular cytokines in CD4+ T lymphocytes and to investigate the correlation between biomarker expressions and clinical and functional characteristics of stable COPD patients.Patients and Methods: Peripheral blood was collected from 36 COPD patients, and the expression of cytokines (IL-8, IL-13, IL-17, IL-6, IL-2, IL-10, and TNF-α) in T lymphocytes CD4 + was investigated. In addition, lung function, dyspnea symptoms, quality of life, vital signs, body composition, level of physical activity, peripheral muscle strength, and functional capacity were assessed.Results: Individuals with greater bronchial obstruction present a higher proportion of CD4 + IL-2 + lymphocytes compared to individuals with less severe bronchial obstruction. We found a positive correlation between the expression of the cytokines IL-13, IL-17, IL-6, IL-2, IL-10, and TNF-α in CD4+ T lymphocytes. In addition, we found a positive correlation between CD4+ IL-10+ T lymphocytes and lower limb muscle strength and a negative correlation between CD4+ IL-8+ T lymphocytes and peripheral oxygen saturation and steps per day.Conclusion: Systemic CD4+IL-2+, IL-8+, and IL-10+ T lymphocytes presented a correlation with clinical characteristics and functional status in stable COPD.Keywords: chronic obstructive pulmonary disease, inflammation, phenotype, flow cytometry

Marceli Rocha Leite,1 Ercy Mara Cipulo Ramos,1 Carlos Augusto Kalva-Filho,2 Ana Paula Coelho Figueira Freire,1 Bruna Spolador de Alencar Silva,1 Juliana Nicolino,1 Alessandra Choqueta de Toledo-Arruda,3 Marcelo Papoti,4 Luiz Carlos Marques Vanderlei,1 Dionei Ramos1 1Department of Physiotherapy, São Paulo State University, Presidente Prudente, 2Program in Rehabilitation and Functional Performance, São Paulo University, Ribeirão Preto, 3Department of Medicine, São Paulo University, 4School of Physical Education and Sport of Ribeirão Preto, São Paulo University, Ribeirão Preto, São Paulo, Brazil Introduction: Patients with chronic obstructive pulmonary disease (COPD) exhibit aerobic function, autonomic nervous system, and mucociliary clearance alterations. These parameters can be attenuated by aerobic training, which can be applied with continuous or interval efforts. However, the possible effects of aerobic training, using progressively both continuous and interval sessions (ie, linear periodization), require further investigation.Aim: To analyze the effects of 12-week aerobic training using continuous and interval sessions on autonomic modulation, mucociliary clearance, and aerobic function in patients with COPD.Methods: Sixteen patients with COPD were divided into an aerobic (continuous and interval) training group (AT) (n=10) and a control group (CG) (n=6). An incremental test (initial speed of 2.0 km·h-1, constant slope of 3%, and increments of 0.5 km·h-1 every 2 minutes) was performed. The training group underwent training for 4 weeks at 60% of the peak velocity reached in the incremental test (vVO2peak) (50 minutes of continuous effort), followed by 4 weeks of sessions at 75% of vVO2peak (30 minutes of continuous effort), and 4 weeks of interval training (5×3-minute effort at vVO2peak, separated by 1 minute of passive recovery). Intensities were adjusted through an incremental test performed at the end of each period.Results: The AT presented an increase in the high frequency index (ms2) (P=0.04), peak oxygen uptake (VO2peak) (P=0.01), vVO2peak (P=0.04), and anaerobic threshold (P=0.02). No significant changes were observed in the CG (P>0.21) group. Neither of the groups presented changes in mucociliary clearance after 12 weeks (AT: P=0.94 and CG: P=0.69).Conclusion: Twelve weeks of aerobic training (continuous and interval sessions) positively influenced the autonomic modulation and aerobic parameters in patients with COPD. However, mucociliary clearance was not affected by aerobic training. Keywords: COPD, exercise, aerobic treatment, mucociliary clearance