Page 84 - 《中国药房》2026年7期
P. 84
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
1
3
4
1*
2
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
4
3
1
DING Chunyan ,WANG Ruijuan ,WANG Yijun ,MENG Liying ,FANG Guanglin(1. Dept. of Stomatology,
1
2
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

