Abstract
Objective To explore the changes of IL-17 and neutrophils,eosinophils percentage in the induced phlegm from the children with different severity bronchial asthma.Methods Forty children with acute asthma were divided into two groups according to the severity of asthma:medium or severe group(n =16) and light group( n =24 ).Twenty normal children were chosen in the same stage as control group.The IL-17 content and the percentage of neutrophils and eosinophils were compared.Results The contents of IL-17 in the medium or severe group,light group and control group were(1.096 ±0.664) ng/L,(0.474 ±0.240) ng/L and(0.227 ±0.360 ) ng/L respectively.The percentage of neutrophils were ( 55.359 ± 12.486 ) %,( 44.476 ± 17.708 ) % and ( 36.493 ± 12.470 ) % respectively.The percentage of eosinophils were ( 1.252 ± 2.025 ) %,(4.107 ± 3.234) %and (1.409 ± 3.480) % respectively.There were significant differences in three groups ( P < 0.05 ).There was significant positive correlation between IL-17 content and percentage of neutrophils in the medium or severe group( r =0.740,P =0.049 ).There was negative correlation in the light group ( r =- 0.764,P =0.000 ).Conclusion There was different among IL-17 content and percentage of neutrophils,eosinophils in children of different groups.The study showed that IL-17 was involved in the potential pathogenesis of asthma. Key words: Bronchial asthma; Induced phlegm ; Interleukin17; Inflammatory cells
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