中国口腔颌面外科杂志 ›› 2023, Vol. 21 ›› Issue (1): 19-23.doi: 10.19438/j.cjoms.2023.01.003

• 论著 • 上一篇    下一篇

sclerostin在2型糖尿病伴牙周炎大鼠牙槽骨骨重建过程中的表达及意义

刘晓东, 张颖, 马金玉, 李玉增   

  1. 首都医科大学大兴教学医院 口腔科,北京 102600
  • 收稿日期:2022-08-02 修回日期:2022-09-16 出版日期:2023-01-20 发布日期:2023-06-12
  • 通讯作者: 李玉增,E-mail: rn110.student@sina.com
  • 作者简介:刘晓东(1986-),女, 硕士,主治医师,E-mail: wad031672@163.com

Expression and significance of sclerostin in the process of alveolar bone reconstruction in type 2 diabetic rats with periodontitis

LIU Xiao-dong, ZHANG Ying, MA Jin-yu, LI Yu-zeng   

  1. Department of Stomatology, Daxing Teaching Hospital, Capital Medical University. Beijing 102600, China
  • Received:2022-08-02 Revised:2022-09-16 Online:2023-01-20 Published:2023-06-12

摘要: 目的: 观察2型糖尿病(T2DM)伴牙周炎大鼠牙槽骨骨重建过程中骨硬化蛋白(sclerostin)的表达。方法: 将54只SD大鼠随机分为健康组、牙周炎组、T2DM伴牙周炎组,每组各18只。牙周炎组建立牙周炎大鼠模型,T2DM伴牙周炎组先建立T2DM模型,再建立牙周炎模型。腹腔注射STZ后1、5、10 d,检测糖代谢指标。结扎后8周,检测牙周指标。建模成功后1、3、6个月,免疫组织化学染色检测牙槽骨组织中sclerostin的表达。采用SPSS 21.0软件包对数据进行统计学分析。结果: 与未建模大鼠相比,T2DM建模大鼠腹腔注射STZ后1、5、10 d空腹血糖(FBG),腹腔注射STZ后10 d空腹胰岛素(FINS)及胰岛素抵抗指数(HOMA-IR)均显著升高(P<0.05)。与未建模大鼠相比,牙周炎建模大鼠牙龈出血指数(SBI)、菌斑指数(PLI)、探针深度(PD)均显著增加(P<0.05)。与健康组相比,牙周炎组、T2DM伴牙周炎组建模成功后1、3、6个月牙槽骨组织中sclerostin表达显著增加(P<0.05),且T2DM伴牙周炎组显著高于牙周炎组(P<0.05)。与建模成功后1个月相比,牙周炎组、T2DM伴牙周炎组建模成功后3、6个月牙槽骨组织中sclerostin表达显著增加(P<0.05)。与建模成功后3个月相比,牙周炎组、T2DM伴牙周炎组建模成功后6个月牙槽骨组织中sclerostin表达显著减少(P<0.05)。结论: sclerostin在牙周炎中表达增加,且合并T2DM进一步上调sclerostin的表达,但在骨重建过程中逐渐下调。

关键词: 2型糖尿病, 牙周炎, 牙槽骨骨重建, 骨硬化蛋白

Abstract: PURPOSE: To observe the expression of sclerostin in the process of alveolar bone reconstruction in rats with type 2 diabetes (T2DM) and periodontitis. METHODS: Fifty-four SD rats were randomly divided into control group, periodontitis group, and T2DM with periodontitis group with 18 rats in each group. The periodontitis group included a rat model with periodontitis, and the T2DM with periodontitis group included a T2DM model first, and then established a periodontitis model. The glucose metabolism indicators were detected at 1, 5, and 10 days after intraperitoneal injection of STZ. The periodontal indexes were detected at 8 weeks after ligation. The expression of sclerostin in alveolar bone tissue were detected by immunohistochemical staining 1, 3, 6 months after successful modeling. SPSS 21.0 software package was used for data analysis. RESULTS: Compared with unmodeled rats, fasting blood glucose (FBG) at 1, 5, and 10 days after intraperitoneal injection of STZ, fasting serum insulin(FINS) and homeostasis model assessment for insulin resistance (HOMA-IR) at 10 days after intraperitoneal injection of STZ in T2DM model rats were increased (P<0.05). Compared with unmodeled rats, the gingival bleeding index(SBI), plaque index (PLI) and probe depth (PD) in periodontitis model rats were increased(P<0.05). Compared with control group, the expression of sclerostin in the alveolar bone tissue at 1, 3, and 6 months after successful modeling in periodontitis group and T2DM with periodontitis group was increased(P<0.05), which was significantly higher in T2DM with periodontitis group than in periodontitis group (P<0.05). Compared with 1 month after successful modeling, the expression of sclerostin in the alveolar bone tissue at 3, 6 months after successful modeling in periodontitis group and T2DM with periodontitis group was increased(P<0.05). Compared with 3 months after successful modeling, the expression of sclerostin in the alveolar bone tissue at 6 months after successful modeling in periodontitis group and T2DM with periodontitis group was decreased(P<0.05). CONCLUSIONS: The expression of sclerostin is increased in periodontitis, and the expression of sclerostin with T2DM is further up-regulated, but it is gradually down-regulated during the process of bone remodeling.

Key words: Type 2 diabetes mellitus, Periodontitis, Alveolar bone remodeling, Sclerostin

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