Abstract: Disclosed is a composition for preventing and treating acetaminophen induced liver injury including the protein extracted from Porphyra yezoensis. The protein(s), separated and purified from hot water extracts of Porphyra yezoensis, having the molecular weight of 14 kDa measured by sodium dodecyl sulfate polyacrylamide gel electrophoresis, has an excellent effect for inhibiting the oxidative injury of liver tissue and cell apoptosis of liver cells induced by acetaminophen.

Abstract: The present invention relates to a HIV-1 inhibiting pharmaceutical composition containing, as an active ingredient, 6,6?-bieckol which is a phloroglucinol polymer compound separated from Ecklonia cava. The Ecklonia cava-derived 6,6?-bieckol according to the present invention inhibits HIV-1 induced cell fusion, the cell lysis effect, and the cytopathogenic effect including virus p24 antibody production, exhibits RT enzyme inhibition activity and HIV-1 infection inhibition activity, and shows no cytotoxicity at the concentration that almost perfectly inhibits HIC-1 replication.

Abstract: The present invention relates to pharmaceutical compositions containing fucoidan for stimulating and activating osteogenesis. The compositions according to the present invention contain fucoidan as an active ingredient to increase the activities of alkaline phosphatase and the production of osteocalcin, and to increase the production of bone morphogenetic protein (BMP-2).

Abstract: The present invention relates to a HIV-1 inhibiting pharmaceutical composition containing, as an active ingredient, 6,6?-bieckol which is a phloroglucinol polymer compound separated from Ecklonia cava. The Ecklonia cava-derived 6,6?-bieckol according to the present invention inhibits HIV-1 induced cell fusion, the cell lysis effect, and the cytopathogenic effect including virus p24 antibody production, exhibits RT enzyme inhibition activity and HIV-1 infection inhibition activity, and shows no cytotoxicity at the concentration that almost perfectly inhibits HIC-1 replication.

Abstract: The present invention relates to the quaternized amino glucosamine, it can exert an anticancer effect via induction of apoptosis in a dose and time dependant manner through which an anticancer treatment effect can be increased.

Abstract: The present invention relates to the quarternized amino glucosamine, it can exert an anticancer effect via induction of apoptosis in a dose and time dependant manner through which an anticancer treatment effect can be increased.