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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Aerobic conditioning and allergic pulmonary inflammation in mice. II. Effects on lung vascular and parenchymal inflammation and remodeling

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Author(s):
Vieira, Rodolfo P. [1] ; de Andrade, Vanessa F. [2] ; Duarte, Anna Cecilia S. [2] ; dos Santos, Angela B. G. [1] ; Mauad, Thais [1] ; Martins, Milton A. [3] ; Dolhnikoff, Marisa [1] ; Carvalho, Celso R. F. [2]
Total Authors: 8
Affiliation:
[1] Univ Sao Paulo, Sch Med, Dept Pathol, BR-01246903 Sao Paulo - Brazil
[2] Univ Sao Paulo, Sch Med, Dept Phys Therapy, BR-01246903 Sao Paulo - Brazil
[3] Univ Sao Paulo, Sch Med, Dept Med, BR-01246903 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: AMERICAN JOURNAL OF PHYSIOLOGY-LUNG CELLULAR AND MOLECULAR PHYSIOLOGY; v. 295, n. 4, p. L670-L679, OCT 2008.
Web of Science Citations: 51
Abstract

Vieira RP, de Andrade VF, Duarte AC, dos Santos AB, Mauad T, Martins MA, Dolhnikoff M, Carvalho CR. Aerobic conditioning and allergic pulmonary inflammation in mice. II. Effects on lung vascular and parenchymal inflammation and remodeling. Am J Physiol Lung Cell Mol Physiol 295: L670-L679, 2008. First published August 29, 2008; doi: 10.1152/ajplung.00465.2007.-Recent evidence suggests that asthma leads to inflammation and remodeling not only in the airways but also in pulmonary vessels and parenchyma. In addition, some studies demonstrated that aerobic training decreases chronic allergic inflammation in the airways; however, its effects on the pulmonary vessels and parenchyma have not been previously evaluated. Our objective was to test the hypothesis that aerobic conditioning reduces inflammation and remodeling in pulmonary vessels and parenchyma in a model of chronic allergic lung inflammation. Balb/c mice were sensitized at days 0, 14, 28, and 42 and challenged with ovalbumin ( OVA) from day 21 to day 50. Aerobic training started on day 21 and continued until day 50. Pulmonary vessel and parenchyma inflammation and remodeling were evaluated by quantitative analysis of eosinophils and mononuclear cells and by collagen and elastin contents and smooth muscle thickness. Immunohistochemistry was performed to quantify the density of positive cells to interleukin (IL)-2, IL-4, IL-5, interferon-gamma, IL-10, monocyte chemotatic protein (MCP)-1, nuclear factor (NF)-kappa B p65, and insulin-like growth factor (IGF)-I. OVA exposure induced pulmonary blood vessels and parenchyma inflammation as well as increased expression of IL-4, IL-5, MCP-1, NF-kappa B p65, and IGF-I by inflammatory cells were reduced by aerobic conditioning. OVA exposure also induced an increase in smooth muscle thickness and elastic and collagen contents in pulmonary vessels, which were reduced by aerobic conditioning. Aerobic conditioning increased the expression of IL-10 in sensitized mice. We conclude that aerobic conditioning decreases pulmonary vascular and parenchymal inflammation and remodeling in this experimental model of chronic allergic lung inflammation in mice. (AU)

FAPESP's process: 02/08422-7 - Mechanisms of pulmonary inflammation in asthma: clinical and experimental studies
Grantee:Milton de Arruda Martins
Support Opportunities: Research Projects - Thematic Grants