Patent ID: 8758769

Claim:
A method for treating acetaminophen induced liver injury in a subject in need thereof comprising: administering to said subject a therapeutically effective amount of a separated and purified Porphyra yezoensis protein, wherein the separated and purified Porphyra yezoensis protein has a molecular weight of 14 kilodaltons (kDa), wherein said molecular weight is measured by sodium dodecyl sulfate polyacrylamide gel electrophoresis, and wherein the separated and purified protein is obtained by extracting Porphyra yezoensis with water at a temperature of 80° C. to provide an aqueous extract of Porphyra yezoensis , filtering the aqueous extract, adding ethanol to the filtered aqueous extract to precipitate sugar and form an upper layer, separating and concentrating the upper layer under reduced pressure, adding ammonium sulfate to provide an ammonium sulfate layer, separating and dialyzing the ammonium sulfate layer and subjecting the dialyzed layer to column chromatography to obtain the separated and purified Porphyra yezoensis protein.