Fig. 9. Interleukin-10 (IL-10) production at 15 h in whole blood cell cultures: after lipopolysaccharide (LPS) stimulation (  A ) or  Staphylococcus aureus Cowan (SAC) stimulation (  B ). Bupi = bupivacaine; carr = carrageenan; contra = contralateral (non–hind paw injection side); ipsi = ipsilateral (hind paw injection side); syst = systemic; TTX = tetrodotoxin. Results are expressed as mean ± SD. *P < 0.01  versus control group. §P < 0.01  versus carrageenan group.