Method for alleviating ultraviolet damage with ethyl acetate-extracted product of sedum formosanum

Abstract

A method for alleviating ultraviolet damage includes administering to a subject in need thereof a composition containing an ethyl acetate-extracted product of Sedum formosanum . The ethyl acetate-extracted product of Sedum formosanum is prepared by a process including the steps of (a) extracting Sedum formosanum with methanol to obtain a methanol-extracted product from Sedum formosanum ; (b) partitioning the methanol-extracted product with water and n-hexane to obtain an aqueous layer and a n-hexane layer; and (c) partitioning the aqueous layer obtained in step (b) with ethyl acetate, followed by collecting an ethyl acetate layer thus formed to obtain the ethyl acetate-extracted product of Sedum formosanum.

What is claimed is: 
     
         1 . A method for alleviating ultraviolet damage, comprising administering to a subject in need thereof a composition containing an ethyl acetate-extracted product of  Sedum formosanum  which is prepared by a process including the steps of:
 (a) extracting  Sedum formosanum  with methanol to obtain a methanol-extracted product from  Sedum formosanum;      (b) partitioning the methanol-extracted product with water and n-hexane to obtain an aqueous layer and a n-hexane layer; and   (c) partitioning the aqueous layer obtained in step (b) with ethyl acetate, followed by collecting an ethyl acetate layer thus formed to obtain the ethyl acetate-extracted product of  Sedum formosanum.      
     
     
         2 . The method of  claim 1 , wherein the ultraviolet damage includes photoaging. 
     
     
         3 . The method of  claim 1 , wherein the ultraviolet damage includes one of UV-induced death of normal cells and UV-induced apoptosis of normal cells. 
     
     
         4 . The method of  claim 1 , wherein the ultraviolet damage includes skin cancer. 
     
     
         5 . The method of  claim 1 , wherein the composition is a pharmaceutical composition. 
     
     
         6 . The method of  claim 5 , wherein the pharmaceutical composition further includes a pharmaceutically acceptable carrier. 
     
     
         7 . The method of  claim 5 , wherein the pharmaceutical composition is in a dosage form for parenteral administration. 
     
     
         8 . The method of  claim 5 , wherein the pharmaceutical composition is in a dosage form for oral administration. 
     
     
         9 . The method of  claim 5 , wherein the pharmaceutical composition is in a dosage form for topical administration. 
     
     
         10 . The method of  claim 1 , wherein the composition is a cosmetic composition. 
     
     
         11 . The method of  claim 10 , wherein the cosmetic composition further includes a cosmetically acceptable adjuvant. 
     
     
         12 . The method of  claim 10 , wherein the cosmetic composition is in a form for topical administration.