Objective: To investigate the mechanism of Chinese herbal medicine Dioscorea nipponica for the treatment of monosodium urate crystals-induced gouty arthritis(GA) in rats. Methods: Sixty male Wistar rats were divided i...Objective: To investigate the mechanism of Chinese herbal medicine Dioscorea nipponica for the treatment of monosodium urate crystals-induced gouty arthritis(GA) in rats. Methods: Sixty male Wistar rats were divided into 6 groups: normal, model, indomethacin and three total saponin(900, 300 and 100 mg/kg) groups. The liver, kidney and serum levels of lysosomal enzymes, antioxidant capacities, and inflammatory factors were measured. In addition, the m RNA and protein levels of the NALP3 inflammasome components in the mononuclear cells of rats’ peripheral blood were analyzed using real-time polymerase chain reaction and Western blotting methods, respectively. Results: Total saponins groups could reduce the activities of β-galactosidase,β-N acetyl glucosamine enzyme,β-glucuronidase, acid phosphatase, and malonaldehyde as wel as the contents of TNF-α, IL-1β and IL-8(all P<0.05). They could also increase the activities of glutathione peroxidase and total superoxide dismutase(both P<0.05). Further studies showed that total saponins groups of high, middle and low doses could all increase the m RNA and protein levels of caspase-1, adapter apoptosis-associated speck-like protein containing a caspase-recruitment domain(ASC) and NALP3 in the mononuclear cells of peripheral blood(all P<0.05). Conclusion: Dioscorea nipponica may treat GA by regulating lysosomal enzymes, antioxidant capacities and the NALP3 inflammasome.展开更多
目的检测急性痛风性关节炎(acute gouty arthritis,AGA)患者治疗前后外周血单核细胞(peripheral blood monocytes,PBMCs)中NLRP3炎性体[NLRP3、凋亡相关斑点样蛋白(ASC)、半胱天冬酶-1(caspase-1)]m RNA表达水平及血清白细胞介素(IL)-1...目的检测急性痛风性关节炎(acute gouty arthritis,AGA)患者治疗前后外周血单核细胞(peripheral blood monocytes,PBMCs)中NLRP3炎性体[NLRP3、凋亡相关斑点样蛋白(ASC)、半胱天冬酶-1(caspase-1)]m RNA表达水平及血清白细胞介素(IL)-18水平的变化,探讨该炎性体及IL-18在AGA发病中可能的作用机制。方法用RT-PCR法检测100名健康查体者(对照组,C)和100例AGA患者(观察组,T)治疗前(D0)及应用药物治疗后第3天(D3)、第7天(D7)、第14(D14)天NLRP3炎性体m RNA表达水平,同时用ELISA法测定相应IL-18水平。观察组与对照组比较采用独立样本t检验,一般生理指标及血生化指标用独立样本t检验,计数资料采用χ2检验。计量资料用(x-±s)表示。采用IBM SPSS 19.0软件包对所有数据进行统计学分析。结果观察组NLRP3 m RNA表达水平D0、D3及D7vs C显著升高,差异有统计学意义(P<0.01),D14 vs C差异无统计学意义(P>0.05);观察组各阶段ASC m RNA表达水平与对照组相比显著升高,差异均有统计学意义,其中D0、D3及D7 vs C(P<0.01)、D14 vs C(P<0.05);观察组caspase-1m RNA表达水平,D0及D3 vs C显著升高,差异有统计学意义(P<0.01),D7及D14 vs C差异无统计学意义(P>0.05)。观察组D0、D3、D7、D14血清IL-18水平与对照组相比显著升高,差异有统计学意义(均为P<0.01)。结论 NLRP3炎性体及IL-18在AGA患者治疗过程中水平异常,提示它们在AGA发病中参与了炎性反应过程,在炎症机制中可能发挥了重要作用。展开更多
基金Supported by the National Natural Science Foundation of China(Nos.81173618,81403156)China Postdoctoral Science Foundation(No.2015M57036)+2 种基金Heilongjiang Postdoctoral Special Assisted Fund(Nos.LBH-TZ0520,LBH-Z13191)Scientific Fund of Heilongjiang University of Chinese Medicine(No.2013bs05)the Outstanding Innovative Talent Support Programs of Heilongjiang University of Chinese Medicine
文摘Objective: To investigate the mechanism of Chinese herbal medicine Dioscorea nipponica for the treatment of monosodium urate crystals-induced gouty arthritis(GA) in rats. Methods: Sixty male Wistar rats were divided into 6 groups: normal, model, indomethacin and three total saponin(900, 300 and 100 mg/kg) groups. The liver, kidney and serum levels of lysosomal enzymes, antioxidant capacities, and inflammatory factors were measured. In addition, the m RNA and protein levels of the NALP3 inflammasome components in the mononuclear cells of rats’ peripheral blood were analyzed using real-time polymerase chain reaction and Western blotting methods, respectively. Results: Total saponins groups could reduce the activities of β-galactosidase,β-N acetyl glucosamine enzyme,β-glucuronidase, acid phosphatase, and malonaldehyde as wel as the contents of TNF-α, IL-1β and IL-8(all P<0.05). They could also increase the activities of glutathione peroxidase and total superoxide dismutase(both P<0.05). Further studies showed that total saponins groups of high, middle and low doses could all increase the m RNA and protein levels of caspase-1, adapter apoptosis-associated speck-like protein containing a caspase-recruitment domain(ASC) and NALP3 in the mononuclear cells of peripheral blood(all P<0.05). Conclusion: Dioscorea nipponica may treat GA by regulating lysosomal enzymes, antioxidant capacities and the NALP3 inflammasome.
文摘目的检测急性痛风性关节炎(acute gouty arthritis,AGA)患者治疗前后外周血单核细胞(peripheral blood monocytes,PBMCs)中NLRP3炎性体[NLRP3、凋亡相关斑点样蛋白(ASC)、半胱天冬酶-1(caspase-1)]m RNA表达水平及血清白细胞介素(IL)-18水平的变化,探讨该炎性体及IL-18在AGA发病中可能的作用机制。方法用RT-PCR法检测100名健康查体者(对照组,C)和100例AGA患者(观察组,T)治疗前(D0)及应用药物治疗后第3天(D3)、第7天(D7)、第14(D14)天NLRP3炎性体m RNA表达水平,同时用ELISA法测定相应IL-18水平。观察组与对照组比较采用独立样本t检验,一般生理指标及血生化指标用独立样本t检验,计数资料采用χ2检验。计量资料用(x-±s)表示。采用IBM SPSS 19.0软件包对所有数据进行统计学分析。结果观察组NLRP3 m RNA表达水平D0、D3及D7vs C显著升高,差异有统计学意义(P<0.01),D14 vs C差异无统计学意义(P>0.05);观察组各阶段ASC m RNA表达水平与对照组相比显著升高,差异均有统计学意义,其中D0、D3及D7 vs C(P<0.01)、D14 vs C(P<0.05);观察组caspase-1m RNA表达水平,D0及D3 vs C显著升高,差异有统计学意义(P<0.01),D7及D14 vs C差异无统计学意义(P>0.05)。观察组D0、D3、D7、D14血清IL-18水平与对照组相比显著升高,差异有统计学意义(均为P<0.01)。结论 NLRP3炎性体及IL-18在AGA患者治疗过程中水平异常,提示它们在AGA发病中参与了炎性反应过程,在炎症机制中可能发挥了重要作用。
