IL1B and Chronic colitis: However, in the NAM+chronic colitis group, there was a 36% decrease in IL-6 expression (chronic colitis group, mean 309 pg/mL, vs. NAM+chronic colitis group, mean 197 pg/mL), a 48% decrease in IL-1β expression (chronic colitis group, mean 414 pg/mL vs. NAM+chronic colitis group, mean 214 pg/mL), a 42% decrease in IL-12p70 expression (chronic colitis group, mean 149 pg/mL vs. NAM+chronic colitis group, mean 86 pg/mL), and a 38% decrease in TNF-α expression (chronic colitis group, mean 305 pg/mL vs. NAM+chronic colitis group, mean 188 pg/mL).