Changes of exhaled nitric oxide and peripheral blood eosinophils in children with asthma

GE Chun-Long; HAO Chuang-Li; TANG Ning-Bo; SUN Yue-Mei; LIU Li-Ping; HE Ning

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Chinese Journal of Contemporary Pediatrics ›› 2009, Vol. 11 ›› Issue (12) : 986-988.

CLINICAL RESEARCH

Changes of exhaled nitric oxide and peripheral blood eosinophils in children with asthma

GE Chun-Long, HAO Chuang-Li, TANG Ning-Bo, SUN Yue-Mei, LIU Li-Ping, HE Ning

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Abstract

OBJECTIVE: This study examined the levels of exhaled nitric oxide (eNO) and peripheral blood eosinophils (EOS) as well as the correlation between the two markers in children with bronchial asthma (AS)，AS complicated by allergic rhinitis (AS/AR) and chronic cough variant asthma (CVA), in order to explore the value of eNOS detection in children with AS. METHODS: The eNO level was measured using light-emitting electrochemical photometry in 12 children with AS, 29 children with AS/AR and 10 children with CVA. Peripheral blood EOS was counted by blood cell counter (Coulter JT). Forced expiratory volume in one second (FEV1) was assessed by lung function measurement. Thirty children without atopic disease and acute respiratory infection as well as without a family history of atopic diseasea served as the control group. RESULTS: The levels of eNO and blood EOS in the AS, the AS/AR and the CVA groups were significantly higher than those in the control group (P<0.01). The AS/AR group showed increased levels of eNO (50.3±6.7 ppb) and EOS (5.9±4.2×109 ) compared with the AS (30.5±8.8 ppb and 4.2±3.2×109 respectively) and the CVA groups (26.0±3.2 ppb and 3.7±6.9×109 respectively) (P<0.05). There were no significant differences in eNO and EOS levels between the AS and the CVA groups. The eNO level was positively correlated with the EOS level (r=0.51, P<0.05), but not with FEV1 (r=0.144, P>0.05) in the AS group. CONCLUSIONS: NO is highly expressed in children with symptoms of atopy and can reflect the levels of eosinophilic airway inflammation in children with AS.［Chin J Contemp Pediatr, 2009, 11 (12):986-988］

Key words

Exhaled nitric oxide / Bronchial asthma / Peripheral blood eosinophil / Child

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GE Chun-Long, HAO Chuang-Li, TANG Ning-Bo, SUN Yue-Mei, LIU Li-Ping, HE Ning. Changes of exhaled nitric oxide and peripheral blood eosinophils in children with asthma[J]. Chinese Journal of Contemporary Pediatrics. 2009, 11(12): 986-988

References

［1］刘恩梅.2005年全球哮喘防治创议有关儿童哮喘的诊治指南［J］．实用儿科临床杂志, 2007, 22(4):319-320．
［2］中华医学会儿科分会呼吸组．儿童支气管哮喘预防常规(试行)［J］．中华儿科杂志,2004,42(2)：100-106.
［3］American Thoracic Society/European Respiratory Society.ATS/ERS.Recommendations for standardized procedures for the on line and off line measurement of exhaled lower respiratory nitric oxide and nasal nittic oxide［J］.Respir Crit Care Med, 2005, 171（8）:912-930.
［4］Palmer RM, Ferrige AG, Moncada S. Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor［J］．Nature, 1987, 327(6122):524-526.
［5］Alving K, Janson C, Nordvall L. Performance of a new handheld device for exhaled nitric oxide in adults and children［J］．Respir Res, 2006, 7(1)：67-73．
［6］Brussee JE, Smit HA, Kerkhof M, Koopman LP, Wijga AH, Postma DS. Exhaled nitric oxide in 4-year-old children: relationship with asthma and atopy［J］. Eur Respir, 2005, 25(3):455-461.
［7］Hervás D, Milán JM, Garde J. Differences in exhaled nitric oxide in atopic children［J］.Allergol Immunopathol (Madr), 2008, 36(6):331-335.
［8］van Asch CJ, Balemans WA, Rovers MM, Schilder AG, van der Ent CK. Atopic disease and exhaled nitric oxide in an unselected population of young adults［J］. Ann Allergy Asthma Immunol, 2008, 100(1):59-65.
［9］Holz O, Mücke M, Zarza P, Loppow D, Jorres RA, Magnussen H. Freezing of homogenized sputum samples for intermittent storage［J］.Clin Exp Allergy, 2001, 31(8):1328-1331.
［10］Hammermann R, Hirschmann J, Hey C, Mossner J, Folkerts G, Nijkamp FP, et al. Cationic proteins inhibit L-arginine uptake in rat alveolar macrophages and tracheal epith elial cells.Implications for nitric oxide synthesis［J］. Am J Respir Cell Mol Biol,1999, 21(2):155-162.
［11］Delgado-Corcoran C, Kissoon N, Murphy SP, Duckworth LJ. Exhaled nitric oxide reflects asthma severity and asthma control［J］.Pediatr Crit Care Med, 2004, 5(1):48-52.
［12］Battaglia S, den Hertog H, Timmers MC, Lazeroms P, Vignola AM, Rabe KF, et al. small airways function and molecular markers in exhaled air in mild asthma［J］. Thorax, 2005, 60(8):639-644.