Retraction Note to: Aging Clin Exp Res 17: 157–163 (2005) https://doi.org/10.1007/BF03324589

The Editor-in-Chief has retracted this article [1] because an investigation by Keio University has concluded that there are inaccuracies in the data reported. As this research was conducted 15 years ago the original data are not available for verification. Therefore the Editor-in-Chief no longer has confidence in this article. The investigation by Keio University also established that Yoshihiro Sato was inappropriately listed as an author on this article. Jun Iwamoto, Tsuyoshi Takeda agree with the retraction. Mitsuyoshi Uzawa has not responded to any correspondence with regards to this retraction. Yoshihiro Sato is deceased.