| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new drug evaluation method that can conduct a screening test on an efficient white hair control agent. <P>SOLUTION: An evaluation method of a white hair control effect by applying a test agent on a gray hair model animal whose proportion of white hair to body hair changes over time evaluates based on any one or more of the evaluation indices: (a) a colorimetric value of body hair of a gray hair model animal, (b) an observation result of a skin tissue of a body hair generating portion of a gray hair model animal, and (c) a measurement value of the amount of melanin of body hair of a gray hair model animal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
