气虚血瘀证慢性荨麻疹复发动物模型建立及评价
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1.成都中医药大学;2.成都中医药大学附属医院

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基金项目:

国家自然科学基金(82575065);


Construction and Evaluation of an Animal Model for Recurrent Chronic Urticaria with Qi Deficiency and Blood Stasis Syndrome
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Affiliation:

1.Chengdu University of Triditional Chinese Medicine;2.Hospital of Chengdu University of Traditional Chinese Medicine

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Funded by National Natural Science Foundation of China(82575065);

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    摘要:

    目的:气虚血瘀证是慢性荨麻疹(chronic urticaria,CU)临床常见的证型,但关于规范的、科学准确的气虚血瘀证慢性荨麻疹复发动物模型的构建方法研究相对缺乏。本研究旨在运用药物干预及休息后再激发的方法构建气虚血瘀证慢性荨麻疹复发动物模型,并对模型进行评价。方法:将30只BALB/c小鼠随机分为 2 组,空白组12只,模型组18只。正常组采用普通饮食,于正常环境下饲养;模型组采用被动皮肤致敏、利血平股四头肌注射、休息后小剂量激发的方法构建气虚血瘀证慢性荨麻疹复发动物模型。通过小鼠的一般情况、体质量、瘙痒程度、气虚血瘀评分、舌象、旷场实验、机械疼痛、机械痛阈值、血清水平及病理学检测,对该模型进行评价。结果:造模后,模型组小鼠瘙抓显著(P<0.01),第6及第7次免疫后HE、甲苯胺蓝检测呈现典型慢性荨麻疹病理表现。且模型组小鼠精神萎靡不振,对外界刺激反应迟钝,不喜动、嗜睡,体虚无力明显,体型较小而肉脱,毛发枯槁,耳廓、肛周、爪甲暗红,较空白组体质量降低(P<0.01),旷场实验平均速度和总路程下降(P<0.01),实验室指标肾上腺皮质激素、烟碱型胆碱受体α1、二磷酸腺苷显著上升(P<0.01),三磷酸腺苷降低(P<0.05),机械痛阈值显著降低(P<0.01),舌象R值、G值与B值均显著降低(P<0.01),呈“紫舌”“暗红舌”。结论:被动皮肤致敏、利血平股四头肌注射、休息后小剂量激发的方法能够构建气虚血瘀证慢性荨麻疹复发动物模型,可以将小鼠的瘙痒程度、“气虚血瘀”评估量表评分、舌象、旷场实验、机械疼痛、机械痛阈值、血清水平及病理学检测的变化作为模型评价的关键指标。

    Abstract:

    Objective: Qi deficiency and blood stasis syndrome is a common clinical pattern of chronic urticaria,However, there is relatively limited research on the establishment of standardized and scientifically accurate animal models for recurrent chronic urticaria with qi deficiency and blood stasis syndrome.. This study aimed to construct and evaluate an animal model of recurrent chronic urticaria with qi deficiency and blood stasis syndrome using drug intervention and re-challenge after rest.Methods: Thirty BALB/c mice were randomly divided into two groups: a control group (n=12) and a model group (n=18). The control group was fed a standard diet and housed under normal conditions. The model group was subjected to passive cutaneous sensitization, reserpine injection into the quadriceps femoris, and low-dose re-challenge after rest to establish the recurrent chronic urticaria model with qi deficiency and blood stasis syndrome. The model was evaluated based on general condition, body weight, scratching behavior, qi deficiency and blood stasis scores, tongue appearance, open-field test results, mechanical pain sensitivity, mechanical pain threshold, serum biomarkers, and histopathological examination.Results: After modeling, the model group exhibited significantly increased scratching behavior (P<0.01). Following the 6th and 7th immunizations, hematoxylin-eosin (HE) and toluidine blue staining revealed typical pathological features of chronic urticaria. The model mice displayed lethargy, reduced responsiveness to external stimuli, decreased activity, drowsiness, physical weakness, emaciation, dull fur, and dark-red ears, perianal regions, and claws. Compared with the control group, the model group showed reduced body weight (P<0.01), decreased average speed and total distance in the open-field test (P<0.01), elevated serum levels of adrenocortical hormones, nicotinic acetylcholine receptor α1, and adenosine diphosphate (P<0.01), reduced adenosine triphosphate (P<0.05), and a significantly lower mechanical pain threshold (P<0.01). Tongue image analysis indicated significantly decreased R, G, and B values (P<0.01), presenting as a "purplish tongue" or "dark-red tongue."Conclusion: The method combining passive cutaneous sensitization, reserpine injection into the quadriceps femoris, and low-dose re-challenge after rest can established an animal model of recurrent chronic urticaria with qi deficiency and blood stasis syndrome. Key evaluation indicators included scratching behavior, qi deficiency and blood stasis scores, tongue appearance, open-field test performance, mechanical pain sensitivity, mechanical pain threshold, serum biomarkers, and histopathological changes.

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  • 收稿日期:2025-07-10
  • 最后修改日期:2025-12-23
  • 录用日期:2026-01-14
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