Airway neutrophils apoptosis in children with severe asthma
OBJECTIVE: To investigate the changes of neutrophils in airway inflammation in children with severe asthma
| Veröffentlicht in: | Zhonghua er ke za zhi = Chinese journal of pediatrics. - 1960. - 47(2009), 8 vom: 02. Aug., Seite 628-31 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , |
| Format: | Aufsatz |
| Sprache: | Chinese |
| Veröffentlicht: |
2009
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| Zugriff auf das übergeordnete Werk: | Zhonghua er ke za zhi = Chinese journal of pediatrics |
| Schlagworte: | English Abstract Journal Article Research Support, Non-U.S. Gov't Interleukin-8 |
| Zusammenfassung: | OBJECTIVE: To investigate the changes of neutrophils in airway inflammation in children with severe asthma METHOD: Children with mild to moderate asthma (n=23), severe asthma (n=16) and healthy control subjects (n=16) underwent lung function tests and sputum induction. The sputum specimens were assayed for cellular differential count, the supernatant and peripheral blood were assayed for the concentrations of IL-8 by "sandwich" enzyme linked immunosorbent assay (ELISA). Sputum supernatant, IL-8 and mifepristone were assessed for their abilities to prolong the in vitro survival of blood-derived neutrophils RESULT: The percentage of sputum neutrophils was significantly higher in severe asthmatics [59.54 (41.99-74.65)%] than mild-moderate asthmatics [30.03 (15.94-47.71)%] and healthy control subjects [29.72(16.53-45.74)%] (P < 0. 01); the level of IL-8 in sputum was significantly higher in severe asthmatics [2907.78 (331.67 - 3457.93) ng/L] than mild-moderate asthmatics [287.58 (130.75-656.84) ng/L] and healthy control subjects [179.2 (58.55-346.59) ng/L] (P < 0.01); the percentages of neutrophilic apoptosis respectively cultured with LPS [(10.57 +/- 1.97)%], severe asthmatics supernatant [(11.82 +/- 2.96)%], IL-8 [(10.47 +/- 1.93)%], dexamethasone [(9.93 +/- 1.95)%], severe asthma supernatant + mifepristone [(12.15 +/- 2.86)%] in vitro were lower than that cultured with PBS [(17.98 +/- 2.27)%], healthy control supernatant [(17.37 +/- 2.50)%], mild-moderate asthmatics supernatant [(16.35 +/- 3.26)%], mifepristone [(17.89 +/- 2.38)%], and dexamethasone + mifepristone [(17.06 +/- 2.59)%] (P < 0.01) CONCLUSION: Suppression of neutrophilic apoptosis seems to play a potential role in airway neutrophilic inflammation in severe asthmatics, and the level of IL-8 in sputum was significantly higher in patients with severe asthmatics |
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| Beschreibung: | Date Completed 02.12.2010 Date Revised 07.06.2016 published: Print Citation Status MEDLINE |
| ISSN: | 0578-1310 |