IL1B and peritonitis: The serum IL-1β and IL-6 levels significantly decreased in the irradiated peritonitis group compared with the non-irradiated group (IL-1β; irradiated: 68.7 pg/mL [40.4–87.6], non-irradiated: 109.5 pg/mL [92.4–149.2], p < 0.01; IL-6; irradiated: 1,367.6 pg/mL [751.0–1,731.0], non-irradiated: 3458.2 pg/mL [2,374.3–4,973.8], p = 0.01) (Fig 5B, 5C).