1. Department of Health Sciences, Prefectural University of Hiroshima, Minami, Hiroshima 734‑8558, Japan
2. Department of Pathology and Physiopathology, Guilin Medical University, Guilin, Guangxi Autonomous Region 541004, P.R. China
3. Department of Oral and Maxillofacial Pathobiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima 734‑8553, Japan
4. R&D Division, Sunstar Inc., Osaka 569‑1195, Japan
5. Department of Life Sciences, Faculty of Life and Environmental Sciences, Prefectural University of Hiroshima, Hiroshima 727‑0023, Japan