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苍术素对牙周炎大鼠牙周组织炎性损伤和牙槽骨丢失的影响及

          机制
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          苏娟娟 ,王 旭 ,陈洪婷 ,翟远坤 ,靳 强 ,王 琳(1.河南大学第一附属医院口腔科,河南 开封 475000;
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          2.河南大学口腔医学院,河南 开封 475000)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)23-2868-06
          DOI  10.6039/j.issn.1001-0408.2023.23.09
          摘   要  目的  探讨苍术素对牙周炎大鼠牙周组织炎性损伤和牙槽骨丢失的影响及机制。方法  将144只SD大鼠分为对照组(灌
          胃且腹腔注射生理盐水),模型组(灌胃且腹腔注射生理盐水),苍术素低、中、高剂量组(分别腹腔注射6.665、13.33、26.66 mg/kg苍
          术素且灌胃生理盐水),甲硝唑组(阳性对照组,灌胃0.05 g/kg甲硝唑且腹腔注射生理盐水),AMD3100[基质细胞衍生因子1(SDF-
          1)/CXC型趋化因子受体4(CXCR4)通路抑制剂]组(灌胃1 mg/kg AMD3100且腹腔注射生理盐水),苍术素高剂量+ AMD3100组
         (腹腔注射26.66 mg/kg苍术素且灌胃1 mg/kg AMD3100),每组18只。除对照组外,其余各组大鼠均采用牙龈内接种牙龈卟啉单
          胞菌法构建牙周炎模型。建模成功后开始给药,每天给药(或生理盐水)1次,持续4周。检测大鼠牙龈指数;检测大鼠血清中白细
          胞介素6(IL-6)、肿瘤坏死因子α(TNF-α)水平;采用亚甲蓝染色、HE染色、抗酒石酸磷酸酶染色法分别检测牙槽骨吸收、牙周组织
          病理变化、破骨细胞数;检测大鼠骨保护素(OPG)、核因子κB受体活化因子配基(RANKL)、SDF-1、CXCR4蛋白表达。结果  与对
          照组比较,模型组大鼠牙周组织病理损伤严重,牙龈指数、IL-6和TNF-α水平、牙槽骨吸收值、破骨细胞数、RANKL蛋白表达水平
          显著升高(P<0.05),OPG 、SDF-1、CXCR4蛋白表达水平显著降低(P<0.05);与模型组比较,苍术素低、中、高剂量组和甲硝唑组
          大鼠牙周组织病理损伤减轻,牙龈指数、IL-6和TNF-α水平、牙槽骨吸收值、破骨细胞数、RANKL蛋白表达水平均显著降低(P<
          0.05),OPG、SDF-1、CXCR4蛋白表达水平均显著升高(P<0.05);AMD3100组大鼠对应指标的变化趋势与上述给药组相反(P<
          0.05),并且 AMD3100 减弱了高剂量苍术素对牙周炎大鼠炎症反应及牙槽骨丢失的抑制作用(P<0.05)。结论  苍术素可能通
          过激活SDF-1/CXCR4信号通路来改善牙周炎大鼠炎症反应及牙槽骨丢失。
          关键词  苍术素;基质细胞衍生因子1;CXC型趋化因子受体4;牙周炎;牙周组织;牙槽骨

          Effects  of  atractylodin  on  inflammatory  damage  of  periodontal  tissue  and  alveolar  bone  loss  in
          periodontitis rats and its mechanism
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          SU Juanjuan ,WANG Xu ,CHEN Hongting ,ZHAI Yuankun ,JIN Qiang ,WANG Lin(1. Dept. of Stomatology,
          the  First  Affiliated  Hospital  of  Henan  University,  Henan  Kaifeng  475000,  China;2.  School  of  Stomatology,
          Henan University, Henan Kaifeng 475000, China)
          ABSTRACT    OBJECTIVE To investigate the effects and mechanism of atractylodin on inflammatory injury of periodontal tissue
          and  alveolar  bone  loss  in  periodontitis  rats.  METHODS  A  total  of  144  SD  rats  were  divided  into  control  group (intragastric  and
          intraperitoneal  injection  of  normal  saline),  model  group (intragastric  and  intraperitoneal  injection  of  normal  saline),  atractylodin
          low-dose,  medium-dose  and  high-dose  groups (intraperitoneal  injection  of  6.665,  13.33,  and  26.66  mg/kg  atractylodin),
          metronidazole  group (positive  control  group,  intragastric  injection  of  0.05  g/kg  metronidazole,  intraperitoneal  injection  of  normal
          saline),  AMD3100  [stromal  cell-derived  factor-1 (SDF-1)/CXC  chemokine  receptor-4 (CXCR4)  pathway  inhibitor]  group
         (intragastric injection of  1  mg/kg AMD3100,  intraperitoneal  injection of  normal  saline),  atractylodin  high-dose+AMD  3100  group
         (intraperitoneal  injection  of  26.66  mg/kg  atractylodin,  intragastric  injection  of  1  mg/kg AMD3100),  with  18  rats  in  each  group.
          Except  for  the  control  group,  all  other  groups  of  rats  were  inoculated  with  Porphyromonas  gingivalis  to  construct  a  periodontitis
          model. After  successful  modeling,  they  were  given  relevant  medicine  or  normal  saline,  once  a  day,  for  4  consecutive  weeks. The
          gingival index of rats was detected; the levels of interleukin-6 (IL-6) and tumor necrosis factor α (TNF-α) in rat serum were also
          determined;  alveolar  bone  resorption,  periodontal  histopathologic  changes  and  the  number  of  osteoclasts  were  detected  by
          methylene  blue  staining,  HE  staining  and  TRAP  staining,  respectively.  The  expressions  of  osteoprotegerin (OPG),  receptor
          activator of NF-κB ligand (RANKL), SDF-1 and CXCR4 proteins were determined. RESULTS Compared with the control group,
                                                              serious  pathological  injury  of  periodontal  tissue  was  found  in
              Δ 基金项目 河南省 2021 年科技发展计划(No.212102310103);       the  model  group,  the  gingival  index,  the  levels  of  IL-6  and
          2022年开封市科技发展计划(No.2203037)                          TNF- α,  alveolar  bone  absorption  value,  the  number  of
             *第一作者 副主任医师,硕士。研究方向:口腔医学。E-mail:                 osteoclasts,  and  the  expression  of  RANKL  protein  were  all
          sujuanjuan2021@126.com                              increased  significantly (P<0.05),  while  the  expressions  of


          · 2868 ·    China Pharmacy  2023 Vol. 34  No. 23                            中国药房  2023年第34卷第23期
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