Abstract：Objective To investigate the effect of Mycoplasma pneumoniae (MP) infection on the function of T lymphocytes in the bronchoalveolar lavage fluid (BALF) of asthmatic children in acute and stable periods and the relationship between MP infection and asthma. Methods Seventy-one hospitalized children (with bronchitis, pneumonia, and asthma) were divided into non-MP infection control group (group A, pneumonia and bronchitis without MP infection), non-MP infection asthma group (group B), and MP infection asthma group (group C). Flow cytometry was used to determine CD3+, CD4+, and CD8+ T cell counts and CD4+/CD8+ ratio in BALF among all children in acute and stable periods. Results Compared with group A, groups B and C showed significant differences in CD3+, CD4+, and CD8+ T cell counts and CD4+/CD8+ ratio (P+ and CD4+ T cell counts, an increased CD8+ T cell count, and a significantly decreased CD4+/CD8+ ratio (P+ and CD4+ T cell counts and CD4+/CD8+ ratio and an increased CD8+ T cell count (P+ and CD4+ T cell counts and CD4+/CD8+ ratio (P+ T cell count (P+, CD4+, and CD8+ T cell counts (P>0.05) and a significant decrease in CD4+/CD8+ ratio (PConclusions The immunological function of T lymphocytes in the airway declines significantly among asthmatic children with MP infection in acute and stable periods, leading to immue system disorder. MP may be associated with the pathogenesis of asthma.
XIN Li-Hong,WANG Jing,WANG Zhen et al. Effect of Mycoplasma pneumoniae infection on function of T lymphocytes in bronchoalveolar lavage fluid of asthmatic children[J]. CJCP, 2014, 16(3): 277-280.
Koh YY, Chae SA, Min KU. Cough variant asthma in associated with a higher wheezing threshold than classic asthma[J]. Clin Exp Allergy, 1993, 23(3): 696-701.
[3]
Daian CM, Wolff AH, Bielory L, et al. The role of a typical ganisms in asthma[J]. Allergy Asthma Proc, 2000, 21(2): 107.
Varshney AK, Chaudhry R, Saharan S, et al. Association of Mycoplasma pneumoniae and asthma among Indian children[J]. FEMS Immunol Med Microbiol, 2009, 56(6): 25-31.
[9]
Nisar N, Guleria R, Kumar S, et al. Mycoplasma pneumoniae and its role in asthma[J]. Postgrad Med J, 2007, 83(2): 100-104.
[10]
Johnston SL, Martin RJ. Chlamydophila pneumoniae and Mycoplasma pneumoniae. a role in asthma pathogenesis?[J]. Am J Respir Crit Care Med, 2005, 172(11): 1078-1089.
