[Objectives]To investigate the inhibitory effect and possible mechanism of essential oil from Valerianae Jatamansi Rhizoma et Radix on microglia activation induced by lipopolysaccharide(LPS).[Methods]The LPS-induced m...[Objectives]To investigate the inhibitory effect and possible mechanism of essential oil from Valerianae Jatamansi Rhizoma et Radix on microglia activation induced by lipopolysaccharide(LPS).[Methods]The LPS-induced microglia activation model was established and treated with different doses of essential oil from Valerianae Jatamansi Rhizoma et Radix.MTT assay was used to detect cell viability,ELISA to detect IL-6 secretion,RT-PCR to detect mRNA expression levels of IL-6,IL-1β,NF-κB,and IκBα,Western blotting to detect the protein expression of IL-6,IL-1β,NF-κB,IκBα,and their phosphorylated products.[Results]Compared with the normal control group,the model group showed increased IL-6 content(P<0.01),upregulated mRNA and protein levels of IL-6,IL-1β,and NF-κB(P<0.01),and elevated ratio of P-IκBα/IκBα(P<0.05).Compared with the model group,4 and 2μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix reduced the content of IL-6(P<0.05),while 4,2,and 1μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix down-regulated the mRNA and protein levels of IL-6,IL-1β,and NF-κB to varying degrees(P<0.05 or P<0.01),up-regulate the mRNA expression of IκBα(P<0.05 or P<0.01),and decreased the ratio of P-IκBα/IκBα(P<0.05 or P<0.01).[Conclusions]Essential oil from Valerianae Jatamansi Rhizoma et Radix can inhibit LPS-induced microglia activation,and its mechanism may be related to the inhibition of the NF-κB/IκBαsignaling pathway.展开更多
[目的]比较分析云南省不同产地草果(Amomum tsaoko Crevost et Lematre)叶中挥发油的化学成分,为其种属鉴定及进一步开发利用提供参考。[方法]采用气质联用技术研究了云南省4个不同产地(元阳小新乡、上新城乡,蒙自冷泉镇,文山州马关大...[目的]比较分析云南省不同产地草果(Amomum tsaoko Crevost et Lematre)叶中挥发油的化学成分,为其种属鉴定及进一步开发利用提供参考。[方法]采用气质联用技术研究了云南省4个不同产地(元阳小新乡、上新城乡,蒙自冷泉镇,文山州马关大篾厂乡)草果叶中的挥发油化学成分。从4种草果叶中共分离鉴定了61个化合物。其中9,12,15十-八碳三烯-1醇-的含量最高超过20%。其次,桉叶油醇和棕榈酸含量均超过10%。[结论]草果叶挥发油中组成丰富,可进一步进行开发利用。展开更多
基金Supported by Karst Center Project of National Natural Science Foundation of China(U1812403-4-4)High-level Innovative Talents Project in Guizhou Province of Guizhou Provincial Department of Science and Technology[QianKeHeRenCai(2015)4029]+2 种基金Science and Technology Innovation Team for Activity Research of Characteristic Natural Medicine Resources in Guizhou Province[QianKeHeRenCaiTuanDui(2015)4025]Major Project of National Social Science Fund(16ZDA238)Pharmaceutical International Science and Technology Cooperation Base of Guizhou Medical University[QianKeHePingTaiRenCai(2017)5802].
文摘[Objectives]To investigate the inhibitory effect and possible mechanism of essential oil from Valerianae Jatamansi Rhizoma et Radix on microglia activation induced by lipopolysaccharide(LPS).[Methods]The LPS-induced microglia activation model was established and treated with different doses of essential oil from Valerianae Jatamansi Rhizoma et Radix.MTT assay was used to detect cell viability,ELISA to detect IL-6 secretion,RT-PCR to detect mRNA expression levels of IL-6,IL-1β,NF-κB,and IκBα,Western blotting to detect the protein expression of IL-6,IL-1β,NF-κB,IκBα,and their phosphorylated products.[Results]Compared with the normal control group,the model group showed increased IL-6 content(P<0.01),upregulated mRNA and protein levels of IL-6,IL-1β,and NF-κB(P<0.01),and elevated ratio of P-IκBα/IκBα(P<0.05).Compared with the model group,4 and 2μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix reduced the content of IL-6(P<0.05),while 4,2,and 1μg/L essential oil from Valerianae Jatamansi Rhizoma et Radix down-regulated the mRNA and protein levels of IL-6,IL-1β,and NF-κB to varying degrees(P<0.05 or P<0.01),up-regulate the mRNA expression of IκBα(P<0.05 or P<0.01),and decreased the ratio of P-IκBα/IκBα(P<0.05 or P<0.01).[Conclusions]Essential oil from Valerianae Jatamansi Rhizoma et Radix can inhibit LPS-induced microglia activation,and its mechanism may be related to the inhibition of the NF-κB/IκBαsignaling pathway.
文摘[目的]比较分析云南省不同产地草果(Amomum tsaoko Crevost et Lematre)叶中挥发油的化学成分,为其种属鉴定及进一步开发利用提供参考。[方法]采用气质联用技术研究了云南省4个不同产地(元阳小新乡、上新城乡,蒙自冷泉镇,文山州马关大篾厂乡)草果叶中的挥发油化学成分。从4种草果叶中共分离鉴定了61个化合物。其中9,12,15十-八碳三烯-1醇-的含量最高超过20%。其次,桉叶油醇和棕榈酸含量均超过10%。[结论]草果叶挥发油中组成丰富,可进一步进行开发利用。
