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Cytokines secreted by macrophages after exposure to different suspensions: LPS (positive control); negative control (saline solution); LLR: live L. rhamnosus; HKLR: heat-killed L. rhamnosus; and SHKLR: supernatant of heat-killed L. rhamnosus. Mean values (pg/mL) ± standard deviation of (a) TNF-α, (b) IL-6, (c) IL-1β, (d) IL-12, (e) IL-10, and (f) IL-4.
