Abstract:
:The objective of this study was to compare systemic and local cytokine profiles and neutrophil responses in patients with severe versus non-severe community-acquired pneumonia (CAP). Hospitalized patients with CAP were grouped according to the pneumonia severity index (PSI), as non-severe (PSI < 91 points) or severe (PSI ≥ 91 points). Blood and sputum samples were collected upon admission. Compared to non-severe CAP patients, the severe CAP group showed higher plasma levels of pro- and anti-inflammatory cytokines but in contrast, lower sputum concentrations of pro-inflammatory cytokines. Blood neutrophil functional responses were elevated in CAP patients compared to healthy controls. However, neutrophils from severe CAP patients showed reduced respiratory burst activity compared to the non-severe group. Results indicate that patients with severe CAP fail to mount a robust local pro-inflammatory response but exhibit instead a more substantial systemic inflammatory response, suggesting that a key driver of CAP severity may be the ability of the patient to generate an optimal local inflammatory response.
journal_name
Inflammationjournal_title
Inflammationauthors
Fernandez-Botran R,Uriarte SM,Arnold FW,Rodriguez-Hernandez L,Rane MJ,Peyrani P,Wiemken T,Kelley R,Uppatla S,Cavallazzi R,Blasi F,Morlacchi L,Aliberti S,Jonsson C,Ramirez JA,Bordon Jdoi
10.1007/s10753-014-9840-2subject
Has Abstractpub_date
2014-08-01 00:00:00pages
1158-66issue
4eissn
0360-3997issn
1573-2576journal_volume
37pub_type
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