About the Authors

Yuka Kotozaki

kotoyuka@idac.tohoku.ac.jp

Affiliation Smart Ageing International Research Centre, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan

Ryuta Kawashima

Affiliation Smart Ageing International Research Centre, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan

Competing Interests

This study was funded by Leave a Nest Co., Ltd. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: YK RK. Performed the experiments: YK. Analyzed the data: YK. Contributed reagents/materials/analysis tools: YK. Wrote the paper: YK.