Effect of RHP and GLGPG on inflammatory mediators in PBL. (a) Proteins secreted by PBLs during LPS/IFN-γ stimulation for 24 h without (symbol on the y axis) or with 31.3 - 1000 mg/L RHP or 1.2 - 38.7 mg/L of GLGPG. (b) Effects of RHP (250 mg/L) and GLGPG (9.7 mg/L) on the secretion of interleukins and chemokines by LPS/IFN-γ stimulated PBL that were cultured for 24 h. Asterisks indicate statistical significant differences in comparison to LPS-stimulated cells (* p < 0.05). (c) Expression levels of interleukins (IL-1β and IL-6) and chemokines (IL-8, CXC10/IP-10) in LPS/IFN-γ stimulated PBL cultured for 2 h with 31.3 - 1000 mg/L RHP or 1.2 - 38.7 mg/L of GLGPG. The symbol on the y-axis indicates the LPS/IFN-γ -induced increase in mRNA levels, in the absence of test compounds.