RGD Reference Report - Increased neutrophils and cytokines, TNF-alpha and IL-8, in induced sputum of non-asthmatic patients with chronic dry cough. - Rat Genome Database

Send us a Message



Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   

Increased neutrophils and cytokines, TNF-alpha and IL-8, in induced sputum of non-asthmatic patients with chronic dry cough.

Authors: Jatakanon, A  Lalloo, UG  Lim, S  Chung, KF  Barnes, PJ 
Citation: Jatakanon A, etal., Thorax. 1999 Mar;54(3):234-7.
RGD ID: 4143478
Pubmed: PMID:10325899   (View Abstract at PubMed)
PMCID: PMC1745433   (View Article at PubMed Central)

BACKGROUND: The pathogenesis of non-asthmatic chronic dry cough remains unclear. METHODS: A study was undertaken to determine whether airway inflammation could be a contributing factor by analysing inflammatory cells and cytokines in induced sputum from 19 patients with chronic dry cough of varying aetiology, excluding asthma and bronchiectasis, and from 10 normal controls. The associated causes for the chronic cough were postnasal drip (n = 5), gastro-oesophageal reflux (n = 4), and idiopathic (n = 10). All patients had an enhanced cough reflex to capsaicin. RESULTS: Sputum neutrophilia (median (interquartile range)) was found in the patients with chronic cough (59.4 (27.1)%) compared with the normal controls (28.4 (22.0)%; p < 0.01, 95% CI 11.3 to 42.2). Sputum levels of interleukin-8 (IL-8) and tumour necrosis factor-alpha (TNF-alpha) were also significantly increased compared with normal controls (0.57 (1.08) and 0.25 (0.72) ng/ml; p < 0.05 (95% CI 0.05 to 1.75) for IL-8; 48.3 (34.4) and 12.6 (33.6) pg/ml, p < 0.01 (95% CI 8.8 to 69.8) for TNF-alpha). CONCLUSION: Neutrophils and cytokines associated with neutrophil chemotaxis and activation may contribute to the pathogenesis of non-asthmatic chronic dry cough.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
TNFHumanCough  IEP protein:increased expression:sputumRGD 
TnfRatCough  ISOTNF (Homo sapiens)protein:increased expression:sputumRGD 
TnfMouseCough  ISOTNF (Homo sapiens)protein:increased expression:sputumRGD 

Objects Annotated

Genes (Rattus norvegicus)
Tnf  (tumor necrosis factor)

Genes (Mus musculus)
Tnf  (tumor necrosis factor)

Genes (Homo sapiens)
TNF  (tumor necrosis factor)


Additional Information