Journal of Oral Science Research ›› 2021, Vol. 37 ›› Issue (6): 569-573.DOI: 10.13701/j.cnki.kqyxyj.2021.06.019

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Effect of Strontium Ranelate on Alveolar Bone Loss in Diabetic Periodontitis in Rats

CHEN Helin1*, WANG Hang2, HUANG Hui3, WANG Yu1, XIONG Yue3   

  1. 1. School of Stomatology, Guizhou Medical University, Guiyang 550000, China;
    2. West China Hospital of Stomatology, Sichuan University, Chengdu 610000, China;
    3. The Affiliated Hospital of Stomatology, Guizhou Medical University, Guiyang 550000, China
  • Received:2021-01-12 Online:2021-06-28 Published:2021-06-17

Abstract: Objective: To investigate the effects of strontium ranelate on alveolar bone loss in diabetic periodontitis in rats. Methods: Forty male SD rats weighing 200g were adopted and divided into four groups randomly: group D (diabetic rats with no intervention); group D+Sr (diabetic rats with administration of strontium ranelate intragastrically); group D+L (diabetic rats with ligature); and group D+L+Sr (diabetic rats with ligature and administration of strontium ranelate intragastrically). After 1 month of strontium ranelate administration, rats were sacrificed and serum and the jaw were collected to measure the content of Ca, P, and alkaline phosphatase (ALP) as well as the alveolar bone loss and expression of RANKL and OPG. Results: The contents of Ca and P among the four groups had no significant difference (P>0.05), while content of ALP in D+L+Sr group was significantly higher than that in D+L group (P<0.05). The three dimensional reconstruction image of the alveolar bone showed that alveolar bone loss in D+L+Sr group was smaller than that in D+L group. Ratio of RANKL/OPG in D+L+Sr group was samller than that in D+L group. Conclusion: Strontium ranelate might promote bone formation and inhibit bone resorption via regulation of RANKL/OPG axis and eventually ameliorate alveolar bone loss in diabetic periodontitis.

Key words: strontium ranelate, diabetes, periodontitis, alveolar bone loss, RANKL/OPG