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红景天苷通过 VIP-cAMP 通路对大鼠腮腺放射性损伤的改善作
用及机制
Δ
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张春英 ,阴广维 ,陈 红 ,尤鸣达 ,刘金凤 ,张亚昆 ,胡耀杰 (1. 唐山市工人医院头颈外科,河北 唐山
1 #
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063000;2.唐山市工人医院外科,河北 唐山 063000;3.华北理工大学附属医院外科,河北 唐山 063000)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2025)22-2796-06
DOI 10.6039/j.issn.1001-0408.2025.22.08
摘 要 目的 探讨红景天苷对大鼠腮腺放射性损伤的改善作用及机制。方法 将大鼠随机分为正常组、放射组、红景天苷低剂量
(红景天苷-L,50 mg/kg)组、红景天苷高剂量(红景天苷-H,100 mg/kg)组、红景天苷-H+抑制剂(100 mg/kg 红景天苷+0.1 µmol/kg
H-89)组,每组10只。除正常组外,其余各组大鼠通过放射线照射构建腮腺放射性损伤模型。各组大鼠腹腔注射相应药物或生理
盐水,每日1次,连续40 d。末次给药后,检测血清中活性氧(ROS)、环磷酸腺苷(cAMP)、超氧化物歧化酶(SOD)、淀粉酶水平,观
察腮腺组织病理学变化,检测腮腺组织细胞凋亡率和其中B细胞淋巴瘤2(Bcl-2)及其相关X蛋白(Bax)表达情况,白细胞介素6
(IL-6)、肿瘤坏死因子α(TNF-α)mRNA表达水平,以及Ⅲ型胶原蛋白(Col Ⅲ)、血管活性肠肽(VIP)蛋白表达水平和cAMP依赖性
蛋白激酶(PKA)磷酸化水平。结果 与正常组比较,放射组大鼠 ROS、淀粉酶水平,细胞凋亡率、Bax 表达水平和 IL-6、TNF-α
mRNA表达水平以及Col Ⅲ蛋白表达水平均显著升高,cAMP、SOD水平,Bcl-2表达水平和VIP蛋白表达水平及PKA磷酸化水平
均显著降低(P<0.05);与放射组比较,红景天苷-L组和红景天苷-H组大鼠上述指标均显著改善(P<0.05),且红景天苷-H组改善
更明显(P<0.05);抑制剂H-89显著逆转了红景天苷-H组大鼠上述指标的变化(P<0.05)。结论 红景天苷可有效改善大鼠的腮
腺放射性损伤,其机制可能与激活VIP-cAMP通路有关。
关键词 红景天苷;放射性损伤;腮腺;VIP-cAMP通路
Improvement effect and mechanism of salidroside on radiation-induced parotid gland injury in rats by VIP-
cAMP pathway
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ZHANG Chunying ,YIN Guangwei ,CHEN Hong ,YOU Mingda ,LIU Jinfeng ,ZHANG Yakun ,HU Yaojie 1
(1. Dept. of Head and Neck Surgery, Tangshan Workers’ Hospital, Hebei Tangshan 063000, China;2. Dept. of
Surgery, Tangshan Workers’ Hospital, Hebei Tangshan 063000, China;3. Dept. of Surgery, the Affiliated
Hospital of North China University of Science and Technology, Hebei Tangshan 063000, China)
ABSTRACT OBJECTIVE To explore the improvement effect and mechanism of salidroside on radiation-induced parotid gland
injury in rats. METHODS Rats were randomly assigned into normal group, radiation group, salidroside low-dose (salidroside-L,
50 mg/kg) group, salidroside high-dose (salidroside-H, 100 mg/kg) group, and salidroside-H+inhibitor (100 mg/kg salidroside+0.1
µmol/kg H-89) group, with 10 rats in each group. Except for the normal group, rats in the other groups were subjected to radiation
exposure to establish a model of radiation-induced parotid gland injury. Rats in each group were intraperitoneally injected with the
corresponding drug or normal saline, once a day, for 40 consecutive days. After the last administration, the levels of reactive
oxygen species (ROS), cyclic adenosine monophosphate (cAMP), superoxide dismutase (SOD), and amylase in serum were
detected; the pathological changes of parotid gland tissue were observed; the apoptosis rate of parotid gland tissue cells, the
expression levels of B-cell lymphoma-2 (Bcl-2) and its associated X protein (Bax), mRNA expression levels of interleukin-6 (IL-
6) and tumor necrosis factor-α (TNF-α), the protein expression levels of type Ⅲ collagen (Col Ⅲ), vasoactive intestinal peptide
(VIP), and the phosphorylation level of protein kinase A (PKA) in parotid gland tissue were determined. RESULTS Compared
with normal group, the levels of ROS, amylase, apoptosis rate, Bax expression level, mRNA expression levels of IL-6 and TNF-
α, and protein expression level of Col Ⅲ in the radiation
Δ 基金项目 河北省医学科学研究课题(No.20240944) group were significantly increased, while the levels of cAMP,
*第一作者 副主任医师,硕士。研究方向:腮腺损伤方向基础实
SOD, Bcl-2 expression level, VIP protein expression level and
验研究。E-mail:vf9214@sina.com
PKA phosphorylation level were significantly decreased (P<
# 通信作者 主任医师,硕士。研究方向:腮腺损伤方向基础实验
研究。E-mail:Hu_yyjj@126.com 0.05). Compared with radiation group, the above indicators in
· 2796 · China Pharmacy 2025 Vol. 36 No. 22 中国药房 2025年第36卷第22期

