目的基于TLR4/NF-κB信号通路探讨枳葛保肝降脂方含药血清对乙醇诱导的人肝LO2细胞炎症损伤的作用及机制。方法将人肝LO2细胞分为正常组(10%正常大鼠血清)、诱导组(10%正常大鼠血清+2.5%无水乙醇)、美他多辛组(10%美他多辛含药血清+2.5...目的基于TLR4/NF-κB信号通路探讨枳葛保肝降脂方含药血清对乙醇诱导的人肝LO2细胞炎症损伤的作用及机制。方法将人肝LO2细胞分为正常组(10%正常大鼠血清)、诱导组(10%正常大鼠血清+2.5%无水乙醇)、美他多辛组(10%美他多辛含药血清+2.5%无水乙醇)和低、中、高浓度枳葛保肝降脂方含药血清组(简称“低、中、高浓度组”)(10.0%、5.0%、2.5%枳葛保肝降脂方含药血清+2.5%无水乙醇)。采用酶联免疫吸附试验法检测各组细胞裂解液中肿瘤坏死因子-α(TNF-α)、白细胞介素(IL)-1β、IL-18含量;Western blot法检测各组Toll样受体4(TLR4)、髓样分化因子88(MyD88)、NLR家族含pyrin结构域蛋白3(NLRP3)、Caspase-1、磷酸化核因子κB p65亚基/核因子κB p65亚基(p-NF-κBp65/NF-κBp65)蛋白表达水平;RT-qPCR检测各组TLR4、MYD88、NLRP3、Caspase-1 m RNA表达情况。结果与正常组比较,诱导组中TNF-α、IL-1β、IL-18含量,TLR4、My D88、NLRP3、Caspase-1、p-NF-κBp65/NF-κBp65蛋白表达水平,TLR4、MYD88、NLRP3、Caspase-1 m RNA表达量均升高(P<0.01)。与诱导组比较,中、高浓度组TNF-α、IL-1β、IL-18含量,TLR4、My D88、NLRP3、Caspase-1、p-NF-κBp65/NF-κBp65蛋白表达水平,TLR4、MYD88、NLRP3、Caspase-1、p-NF-κBp65/NF-κBp65mRNA表达量均降低(P<0.01)。结论枳葛保肝降脂方含药血清对无水乙醇诱导的人肝LO2细胞炎症损伤具有保护作用,其作用可能通过TLR4/NF-κB信号通路产生。展开更多
In this paper,a terahertz slotted waveguide array antenna is designed based on photonic crystal,which can realize efficient radiation of terahertz waves.The electromagnetic wave is fed from the rectangular waveguide a...In this paper,a terahertz slotted waveguide array antenna is designed based on photonic crystal,which can realize efficient radiation of terahertz waves.The electromagnetic wave is fed from the rectangular waveguide at the bottom of the antenna,coupled to photonic crystal waveguide through photonic crystal cavity,and radiated outward through slots at the top layer of antenna.The simulation results show that the antenna achieves a peak gain of 13.45 dBi at 360 GHz,a half-power beam width of 10.9°,and a side lobe level of−13.9 dB.The antenna based on photonic crystal has the advantages of low profile,low loss,and high radiation efficiency,which can be applied to terahertz wireless communication systems.展开更多
A dominant intrinsic luminescence band, which is due to the surface potential barriers of crystalline grains, and an edge doublet, which arises as an LO-phonon repetition of the e-h band, has been revealed in the low-...A dominant intrinsic luminescence band, which is due to the surface potential barriers of crystalline grains, and an edge doublet, which arises as an LO-phonon repetition of the e-h band, has been revealed in the low-temperature photoluminescence spectra of fine-grained obliquely deposited films. Doping film with In impurity leads to quenching of the doublet band, while further thermal treatment causes activation of the intrinsic band, the half-width and the blue shift of the red edge of which correlates with the maximum value of anomalously high photovoltage generated by the film.展开更多
文摘目的基于TLR4/NF-κB信号通路探讨枳葛保肝降脂方含药血清对乙醇诱导的人肝LO2细胞炎症损伤的作用及机制。方法将人肝LO2细胞分为正常组(10%正常大鼠血清)、诱导组(10%正常大鼠血清+2.5%无水乙醇)、美他多辛组(10%美他多辛含药血清+2.5%无水乙醇)和低、中、高浓度枳葛保肝降脂方含药血清组(简称“低、中、高浓度组”)(10.0%、5.0%、2.5%枳葛保肝降脂方含药血清+2.5%无水乙醇)。采用酶联免疫吸附试验法检测各组细胞裂解液中肿瘤坏死因子-α(TNF-α)、白细胞介素(IL)-1β、IL-18含量;Western blot法检测各组Toll样受体4(TLR4)、髓样分化因子88(MyD88)、NLR家族含pyrin结构域蛋白3(NLRP3)、Caspase-1、磷酸化核因子κB p65亚基/核因子κB p65亚基(p-NF-κBp65/NF-κBp65)蛋白表达水平;RT-qPCR检测各组TLR4、MYD88、NLRP3、Caspase-1 m RNA表达情况。结果与正常组比较,诱导组中TNF-α、IL-1β、IL-18含量,TLR4、My D88、NLRP3、Caspase-1、p-NF-κBp65/NF-κBp65蛋白表达水平,TLR4、MYD88、NLRP3、Caspase-1 m RNA表达量均升高(P<0.01)。与诱导组比较,中、高浓度组TNF-α、IL-1β、IL-18含量,TLR4、My D88、NLRP3、Caspase-1、p-NF-κBp65/NF-κBp65蛋白表达水平,TLR4、MYD88、NLRP3、Caspase-1、p-NF-κBp65/NF-κBp65mRNA表达量均降低(P<0.01)。结论枳葛保肝降脂方含药血清对无水乙醇诱导的人肝LO2细胞炎症损伤具有保护作用,其作用可能通过TLR4/NF-κB信号通路产生。
基金supported by the National Natural Science Foundation of China(No.62375031)the Basic Research Project of Chongqing Science and Technology Commission(No.CSTC-2021jcyj-bsh0194)the Science and Technology Research Program of Chongqing Municipal Education Commission(No.KJQN202200602)。
文摘In this paper,a terahertz slotted waveguide array antenna is designed based on photonic crystal,which can realize efficient radiation of terahertz waves.The electromagnetic wave is fed from the rectangular waveguide at the bottom of the antenna,coupled to photonic crystal waveguide through photonic crystal cavity,and radiated outward through slots at the top layer of antenna.The simulation results show that the antenna achieves a peak gain of 13.45 dBi at 360 GHz,a half-power beam width of 10.9°,and a side lobe level of−13.9 dB.The antenna based on photonic crystal has the advantages of low profile,low loss,and high radiation efficiency,which can be applied to terahertz wireless communication systems.
文摘A dominant intrinsic luminescence band, which is due to the surface potential barriers of crystalline grains, and an edge doublet, which arises as an LO-phonon repetition of the e-h band, has been revealed in the low-temperature photoluminescence spectra of fine-grained obliquely deposited films. Doping film with In impurity leads to quenching of the doublet band, while further thermal treatment causes activation of the intrinsic band, the half-width and the blue shift of the red edge of which correlates with the maximum value of anomalously high photovoltage generated by the film.
