The present invention relates to a method for immuno-modulation in an
organism by using a protein extract from a monocotyledon plant. The
present invention also relates to a method for inhibiting nitrite
production or anti-oxidation activity in an organism by using an organic
extract from a monocotyledon plant. The present invention also relates to
a method for regulating uric acid in an organism by using 6-aminopurine
analogues.