1.Brief Report on the Association of Lifestyle Habits with the Pathological Condition of ki
Kengo HAMADA ; Akira NISHIKAWA ; Nobushiro NISHIMURA ; Shinichi FUJIMOTO
Kampo Medicine 2015;66(3):256-258
We investigated 58 general medicine outpatients with a questionnaire on sex, BMI, lifestyle habits and the pathological condition of ki. We classified sex, BMI and sleep, diet and exercise as lifestyle habit factors, and classified ki deficiency, ki obstructive depression, ki counter flow as the pathological signs of ki. After we established a disease group and a control group, we calculated ratios for the factors in each group. As a result, there were associations between hours of sleep, and recovery from fatigue with sleep, to ki deficiency. There were also associations between recovery from fatigue with sleep, and sex, to ki obstructive depression and ki counter flow.
2.Micromolar sodium fluoride mediates anti-osteoclastogenesis in Porphyromonas gingivalis-induced alveolar bone loss.
Ujjal K BHAWAL ; Hye-Jin LEE ; Kazumune ARIKAWA ; Michiharu SHIMOSAKA ; Masatoshi SUZUKI ; Toshizo TOYAMA ; Takenori SATO ; Ryota KAWAMATA ; Chieko TAGUCHI ; Nobushiro HAMADA ; Ikuo NASU ; Hirohisa ARAKAWA ; Koh SHIBUTANI
International Journal of Oral Science 2015;7(4):242-249
Osteoclasts are bone-specific multinucleated cells generated by the differentiation of monocyte/macrophage lineage precursors. Regulation of osteoclast differentiation is considered an effective therapeutic approach to the treatment of bone-lytic diseases. Periodontitis is an inflammatory disease characterized by extensive bone resorption. In this study, we investigated the effects of sodium fluoride (NaF) on osteoclastogenesis induced by Porphyromonas gingivalis, an important colonizer of the oral cavity that has been implicated in periodontitis. NaF strongly inhibited the P. gingivalis-induced alveolar bone loss. That effect was accompanied by decreased levels of cathepsin K, interleukin (IL)-1β, matrix metalloproteinase 9 (MMP9), and tartrate-resistant acid phosphatase, which were up-regulated during P. gingivalis-induced osteoclastogenesis. Consistent with the in vivo anti-osteoclastogenic effect, NaF inhibited osteoclast formation caused by the differentiation factor RANKL (receptor activator of nuclear factor κB ligand) and macrophage colony-stimulating factor (M-CSF). The RANKL-stimulated induction of the transcription factor nuclear factor of activated T cells (NFAT) c1 was also abrogated by NaF. Taken together, our data demonstrate that NaF inhibits RANKL-induced osteoclastogenesis by reducing the induction of NFATc1, ultimately leading to the suppressed expression of cathepsin K and MMP9. The in vivo effect of NaF on the inhibition of P. gingivalis-induced osteoclastogenesis strengthens the potential usefulness of NaF for treating periodontal diseases.
Acid Phosphatase
;
drug effects
;
Alveolar Bone Loss
;
microbiology
;
prevention & control
;
Animals
;
Anti-Bacterial Agents
;
therapeutic use
;
Anti-Inflammatory Agents
;
therapeutic use
;
Bacteroidaceae Infections
;
microbiology
;
prevention & control
;
Bone Density Conservation Agents
;
therapeutic use
;
Cathepsin K
;
drug effects
;
Interleukin-1beta
;
drug effects
;
Interleukin-6
;
analysis
;
Interleukin-8
;
drug effects
;
Isoenzymes
;
drug effects
;
Macrophage Colony-Stimulating Factor
;
drug effects
;
Male
;
Matrix Metalloproteinase 9
;
drug effects
;
Osteoclasts
;
drug effects
;
Periodontitis
;
microbiology
;
prevention & control
;
Porphyromonas gingivalis
;
drug effects
;
RANK Ligand
;
drug effects
;
Rats
;
Rats, Sprague-Dawley
;
Sodium Fluoride
;
therapeutic use
;
Tartrate-Resistant Acid Phosphatase
;
Transcription Factors
;
drug effects
;
X-Ray Microtomography
;
methods