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桑黄素调控 SIRT1/PGC-1α/Nrf2 通路对牙周炎小鼠牙槽骨吸收

          的影响
                     Δ


          丁春燕 ,汪瑞娟 ,王毅军 ,孟丽颖 ,房广林(1.天津医科大学附属宝坻医院口腔科,天津 301800;2.天津市
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                 1*
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          宝坻区海滨医院口腔科,天津 301800;3.天津市宝坻区周良卫生院口腔科,天津 301800;4.天津市宝坻区郝
          各庄医院口腔科,天津 301800)
          中图分类号  R965;R285      文献标志码  A      文章编号  1001-0408(2026)07-0902-06
          DOI  10.6039/j.issn.1001-0408.2026.07.13


          摘   要  目的  基于沉默信息调节因子 1/过氧化物酶体增殖物激活受体 γ 共激活因子 1α/核转录因子红系 2 相关因子 2(SIRT1/
          PGC-1α/Nrf2)通路,研究桑黄素对牙周炎小鼠牙槽骨吸收的影响及机制。方法  将小鼠随机分为对照组、模型组、桑黄素组(40
          mg/kg)、SRT1720(SIRT1激活剂)组(5 mg/kg)、桑黄素+EX527(SIRT1抑制剂)组(40 mg/kg桑黄素+7.5 mg/kg EX527),每组18只。
          除对照组外,其余各组小鼠均通过丝线结扎法建立牙周炎模型。建模成功后,各组小鼠灌胃或腹腔注射相应药液/生理盐水,每天
          给药1次,连续2周。末次给药后,检测小鼠血清中肿瘤坏死因子α(TNF-α)、白细胞介素(IL)-1β、IL-6、IL-10水平;测量小鼠釉牙
          骨质界与牙槽骨嵴顶的距离,并计算骨体积分数和骨矿物质密度;观察小鼠牙周组织病理学形态;检测小鼠牙周组织中破骨细胞
          数;检测小鼠牙周组织中核因子κB受体激活蛋白配体(RANKL)、骨保护素(OPG)mRNA表达水平和丙二醛(MDA)、超氧化物歧
          化酶(SOD)水平以及SIRT1、PGC-1α、Nrf2蛋白表达水平。结果  与模型组比较,桑黄素组、SRT1720组小鼠牙槽骨吸收和牙周组
          织炎症细胞浸润现象有所改善;血清中 TNF-α、IL-1β、IL-6 水平,釉牙骨质界与牙槽骨嵴顶的距离,牙周组织中破骨细胞数、
          RANKL mRNA表达水平、MDA水平均显著降低/缩短/减少(P<0.05);血清中IL-10水平,骨体积分数和骨矿物质密度,牙周组织
          中 OPG mRNA 表达水平、SOD 水平和 SIRT1、PGC-1α、Nrf2 蛋白表达水平均显著升高(P<0.05)。与桑黄素组比较,桑黄素+
          EX527 组小鼠上述病理改变明显加重,定量指标水平均显著逆转(P<0.05)。结论  桑黄素可能通过激活 SIRT1/PGC-1α/Nrf2 通
          路,减轻炎症反应和氧化应激反应,从而抑制牙周炎小鼠牙槽骨吸收。
          关键词  牙周炎;桑黄素;SIRT1/PGC-1α/Nrf2通路;牙槽骨吸收;氧化应激

          Effect  of  morin  on  alveolar  bone  resorption  in  periodontitis  mice  by  regulating  the  SIRT1/PGC-1α/Nrf2
          pathway
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          DING Chunyan ,WANG Ruijuan ,WANG Yijun ,MENG Liying ,FANG Guanglin(1.  Dept.  of  Stomatology,
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          Baodi Hospital Affiliated to Tianjin Medical University, Tianjin 301800, China;2. Dept. of Stomatology, Baodi
          District  Haibin  Hospital  of  Tianjin,  Tianjin  301800,  China;3.  Dept.  of  Stomatology,  Baodi  District  Zhouliang
          Health Center of Tianjin, Tianjin 301800, China;4. Dept. of Stomatology, Baodi District Haogezhuang Hospital
          of Tianjin, Tianjin 301800, China)
          ABSTRACT    OBJECTIVE  To  investigate  the  effect  and  mechanism  of  morin  on  alveolar  bone  resorption  in  periodontitis  mice
          based  on  the  silent  information  regulator  1 (SIRT1)/peroxisome  proliferator-activated  receptor  γ  coactivator-1α (PGC-1α)/nuclear
          factor-erythroid 2-related factor 2 (Nrf2) pathway. METHODS The mice were randomly divided into control group, model group,
          morin  group (40  mg/kg),  SRT1720 (SIRT1  activator)  group (5  mg/kg),  and  morin+EX527 (SIRT1  inhibitor)  group (40  mg/kg
          morin+7.5  mg/kg  EX527),  with  18  mice  in  each  group.  Except  for  control  group,  mice  in  other  groups  were  subjected  to  silk
          ligation  to  establish  periodontitis  model. After  successful  modeling,  mice  in  each  group  were  treated  with  corresponding  medicinal
          solutions  or  normal  saline  intragastrically  or  intraperitoneally,  once  a  day,  for  two  consecutive  weeks. After  the  last  medication,
          serum  levels  of  tumor  necrosis  factor-α (TNF-α),  interleukin (IL)-1β,  IL-6  and  IL-10  were  measured. The  distance  between  the
          cementoenamel  junction  and  alveolar  bone  crest  was  determined,  and  bone  volume  fraction  and  bone  mineral  density  were
                                                              calculated.  Pathological  changes  of  periodontal  tissue  were
                                                              observed, and the number of osteoclasts was measured. mRNA
              Δ 基金项目 国家卫生健康委医药卫生科技发展研究中心课题
         (No. W2023ZT226);天 津 市 自 然 科 学 基 金 联 合 基 金 项 目(No.   expressions  of  receptor  activator  of  nuclear  factor- κB  ligand
          24JCYBJC00291)                                     (RANKL)  and  osteoprotegerin (OPG)  in  periodontal  tissue,
             * 第一作者 主 任 医 师 。 研 究 方 向 :口 腔 医 学 。 E-mail:      the  levels  of  malondialdehyde  (MDA)  and  superoxide
          dingchunyan01975@163.com                            dismutase (SOD)  as  well  as  protein  expressions  of  SIRT1,


          · 902 ·    China Pharmacy  2026 Vol. 37  No. 7                               中国药房  2026年第37卷第7期
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