目的研究海风藤提取物对β淀粉样蛋白(Aβ寡聚体诱导小胶质细胞激活的影响。方法模拟体内生理条件诱导Ap单体形成Ap寡聚体,原代培养新生大鼠小胶质细胞,分别用Ap25—35寡聚体、A1325—35寡聚体+海风藤提取物、A1325—35寡聚体+DMSO干预小胶质细胞,并设空白对照组,48h后测上清液中白细胞介素1β(IL-1β)和白细胞介素6(IL-6)水平,并比较各组间炎性因子差异。结果Ap寡聚体组上清液中IL-1β、IL-6水平明显高于空白对照组[IL-1β:(67.06±1.79)pg/mL vs.(36.30土1.40)pg/mL;IL6:(181.14±4.46)pg/mL73S.(110.90±4.62)pg/mL,均P〈0.05;;Aβ寡聚体组上清液中IL-1β、IL-6水平明显高于Ap寡聚体+海风藤提取物组(IL-1β:(63.24±2.00)pg/mL,IL-6:(170.34±3.47)pg/mL,P〈0.053;Aβ寡聚体组上清液中IL-1β、IL-6水平和A8寡聚体+DMSO组[IL-1β(68.26±1.38)pg/mL,IL-6(184.7±6.06)pg/mL]比较无统计学差异。结论Ap寡聚体能激活小胶质细胞;海风藤提取物能明显抑制Ap寡聚体诱导小胶质细胞的激活。
Objective from mieroglia induced by Aβ without Piper kadsura extract. the Aβ25-35 oligomers group, DMSO group. 48 hours later, inflammatory factors between (36.30±1.40) pg/mL, IL-6: [ (181.14±4.46) pg/mL] in To explore the effect of Piper kadsura extract on inflammatory factor secretion oligomer. Methods Primary microglia was activated with Aβ oligomer with or The cultured microglial cells were divided into 4 groups: the blank control group, the Aβ25-35 oligomers± Piper kadsura extract group and the Aβ25-35 oligomers IL-I and IL-6 in the supernatant were measured by ELISA kit. The difference of each group was compared. Results Compared with the control group [IL-10 (110.9±4.62) pg/mL], the level of IL-1β [ (67.06±1.79) pg/mL] and IL 6 the supernatant of Aβ oligomer group increased significantly (P〈0.05) ; the level of IL-1β and IL-6 in the supernatant of Aβ oligomer group was significantly higher than that in the Aβ oligomer ± Piper kadsura extract group [-IL-1] (63.24±2.00) pg/mL, IL-6: (170.34±3.47) pg/mL, P〈0.05]. There was no difference between the level of IL-1β and IL-6 in the supernatant of Aβ oligomer group and Aβ oligomer DMSO group [IL-1β (68.26±1.38) pg/mL, IL-6: (184.7±6.06) pg/mL]. Conclusions Aβ oligomer can activate microglia Piper kadsura extract can significantly inhibite the A oligomer induced microglial activation.