Alteration in osteoblast-like cells and bone tissue of murine under the irradiation of Far-infrared Ray ( FIR )

Tatsuo Ishikawa^*，Kikuji Yamashita^* , Kaori Sumida ^*,

Kaori Abe^* ,Seiichiro Kitamura^*

Department of Oral and Maxillofacial Anatomy，Institute of Health Bioscience,

University of Tokushima Graduate School^*

This study examined the efficacy of FIR in a proliferation of osteoblast-like cells MC3T3-E1 and a growth of bone tissue. Osteoblast-like cells are cultured in the FIR incubator . Titanium-inplanted rats were raised in the FIR raiser and examined. Mice were bred with FIR- irradiating food and investigated. Proliferation of osteoblast-like cells were suppressed. Expressions of calcified nodules were upregulated. Mice with FIR lost body weight but gained bone weight. These results might suggest that FIR prevents alveolar bone loss in periodiontal disease.