Abstract: Disclosed is a technique for switching from a master node to a secondary node in a communication system. A method of a first communication node may comprise: adding the first communication node as a primary secondary cell (PSCell) to a second communication node through dual connectivity (DC); generating a first user plane path for smart dynamic switching (SDS) and a first instance for supporting the first user plane path according to a request from the second communication node; transmitting information on the first user plane path and the first instance to a terminal; receiving user data based on the first user plane path from the terminal as the first instance; and transmitting the user data to a core network using the first user plane path.

Abstract: A composition for preventing the hair loss or promoting the hair growth includes Wnt protein-derived peptides and polydeoxyribonucleotides as an active ingredient, and increases the secretion of ?-catenin. By the cell activation and activation of signal transduction pathway for promoting the hair growth signaling system, the growth of hair constituent cells, such as keratinocytes, fibroblasts and dermal papilla cells, is increased to prevent the hair loss or promote the hair growth. Wnt protein-derived peptides and polydeoxyribonucleotides are used as a cosmetic composition, a pharmaceutical composition or a health food composition for preventing the hair loss or promoting the hair growth.

Abstract: The present invention relates to a composition for preventing the hair loss or promoting the hair growth, and according to the present invention, Wnt protein-derived peptides, polydeoxyribonucleotides or mixtures thereof increase the secretion of ?-catenin, and increase the growth of keratinocytes, fibroblasts and dermal papilla cells which are hair constituent cells, by the cell activation and activation of signal transduction pathway for promoting the hair growth signaling system and to prevent the hair loss and promote the hair growth and therefore, Wnt protein-derived peptides, polydeoxyribonucleotides or mixtures thereof having the above effect can be used as a cosmetic composition, a pharmaceutical composition or a health food composition for preventing the hair loss or promoting the hair growth.