Abstract: A method for treating a cell damage-related disease, including administering a composition to a subject in need thereof. The composition contains, as an active ingredient, one or more selected from the group consisting of stem cells genetically engineered to overexpress a carcinoembryonic antigen-related cell adhesion molecule (CEACAM) family protein, cells differentiated from the stem cells, and components derived from the stem cells.

Abstract: The present invention relates to a graft copolymer and a method for preparing the same, wherein the graft copolymer has merits of a superior storage convenience compared to existing dry powder and a high whiteness index, and thus may be widely applied to various fields.

Abstract: An extruder configured to extrude a solid raw material containing moisture includes a barrel, a hopper, a discharge port, and a slot portion, through which the inside and outside of the barrel communicate each other, is provided between the discharge port and the hopper; a screw, and a heater mounted on the barrel to heat the raw material. Raw material introduced into the barrel through the hopper is heated by the heater while being transferred within the barrel through the screw. A kneading zone, in which raw materials transferred by the screw threads are compressed, is formed on the screw. Since the raw material is melted within the barrel, a heating temperature of the heater and an axial rotation speed of the screw are controlled so that a sealing membrane that shields an inner transverse section of the barrel is formed from the liquid raw material in the kneading zone.

Abstract: An extruder configured to extrude a solid raw material containing moisture includes a barrel, a hopper coupled to one side of the barrel, a discharge port, a screw, vent disposed between the hopper and the discharge port to discharge vapor generated within the barrel; and a heater mounted on the barrel to heat the raw material. Raw material introduced into the barrel through the hopper is heated by the heater while being transferred within the barrel through the screw. A kneading zone, in which raw materials transferred by the screw threads are compressed, is formed on the screw. Since the raw material is melted within the barrel, a heating temperature of the heater and an axial rotation speed of the screw are controlled so that a sealing membrane that shields an inner transverse section of the barrel is formed from the liquid raw material in the kneading zone.