盐酸小檗碱对大鼠牙周组织中白细胞介素-1β和肿瘤坏死因子-α表达的影响

目的探讨盐酸小檗碱对大鼠实验性牙周炎模型牙周组织中白细胞介素- 1β（IL- 1β）和肿瘤坏死因子- α（TNF- α）表达的影响。方法在成功建立大鼠实验性牙周炎模型的基础上，实验动物在分别灌服盐酸小檗碱后第1、2、3、4周处死，取牙周组织标本作切片，行常规苏木精- 伊红染色，观察牙周组织病理变化状况，并采用免疫组织化学SABC法检测IL- 1β、TNF- α水平变化。结果牙周炎组牙周组织中IL- 1β、TNF- α表达明显高于正常组（P<0.05）；各时间段牙周炎治疗组牙周组织中IL- 1β、TNF- α表达明显低于牙周炎组（P<0.05），但牙周炎治疗组各时间段之间IL- 1β、TNF- α表达无显著差异。结论大鼠实验性牙周炎模型牙周组织中TNF- α、IL- 1β表达水平较正常对照组明显升高，应用盐酸小檗碱能抑制实验性牙周炎模型牙周组织中TNF- α、IL- 1β的表达。

Effect of berberine hydrochloride on the expression of interleukin-1β and tumor necrosis factor- periodontal tissues in rats

OBJECTIVE: To determine the effects of berberine hydrochloride on the expressions of interleukin-1beta (IL-1beta) and tumor necrosis factor-alpha (TNF-alpha) in periodontal tissues in rat periodontitis model. METHODS: Based on the successful rat periodontitis model, the experimental rats were randomized into different groups followed by oral treatment with berberine hydrochloride for 1, 2, 3, 4 weeks and then the rats were sacrificed and analyzed. Pathological assay and HE staining were used to detect the general conditions and pathological changes of rat periodontal tissues. And immunohistochemical staining was conducted to determine the expressions of IL-1beta and TNF-alpha in rats periodontitis model periodontal tissues. RESULTS: The levels of IL-1beta and TNF-alpha in the periodontitis tissues were significantly higher than that in the control group. Treatment with berberine hydrochloride decreased the levels of IL-1beta and TNF-alpha in periodontitis tissues (P<0.05). Moreover, the general conditions and pathological changes in the control group and groups treated with berberine hydrochloride were much better than that in periodontitis groups. CONCLUSION: Berberine hydrochloride inhibited the expression of IL-1beta and TNF-alpha in periodontal tissues in rats periodontitis model and promoted the regeneration of the periodontal tissues. This study suggested that berberine hydrochloride may have potential clinical application.