Immunomodulating Properties of Carrageenan from Tichocarpus crinitus.

Several in vivo immunotropic effects of κ/β-carrageenan isolated from the red algae Tichocarpus crinitus were studied, by orally administering it at 100 mg/kg/day to mice for 7 days. Serum levels of IFN-γ, IL-12, IL-1β, and IL-4 were measured. Carrageenan's ability to influence development of LPS-induced inflammation was also assessed.