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Article History

Received: 3 July 2018

Accepted: 21 August 2018

First Online: 19 September 2018

Ethics approval

: All breeding, housing, and experimental procedures of animals were performed according to the guidelines for Animal Care of Juntendo University and approved by the Juntendo University Animal Care and Use Committee. This article does not contain any studies with human participants performed by any of the authors (research on tissue derived from an autopsy is not considered as human subject research). For the post-mortem human brain tissue, a consent for autopsy was obtained from the next-of-kin at the time of the death.

: The authors declared that they have no competing interest.

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