Periodontitis induced by bacterial infection exacerbates features of Alzheimer’s disease in transgenic mice oleh Naoyuki Ishida, Yuichi Ishihara, Kazuto Ishida, Hiroyuki Tada, Yoshiko Funaki-Kato, Makoto Hagiwara, Taslima Ferdous, Mohammad Abdullah, Akio Mitani, Makoto Michikawa, Kenji Matsushita