OBJECTIVE:To explore the anti-inflammatory components and mechanism of the non-volatile ingredients of patchouli.METHODS:High performance liquid chromatographyheated electron spray ionization-high resolution mass spec...OBJECTIVE:To explore the anti-inflammatory components and mechanism of the non-volatile ingredients of patchouli.METHODS:High performance liquid chromatographyheated electron spray ionization-high resolution mass spectroscope(HPLC-HESI-HRMS)was used to analyze the chemical constituents of the non-volatile ingredients of patchouli.The anti-inflammatory activity of ingredients was evaluated using lipopolysaccharide(LPS)induced RAW264.7 cell inflammation model,and the antiinflammatory mechanism was investigated using multivariate statistical analysis of cell metabolomics.RESULTS:The non-volatile ingredients of patchouli were characterized by HPLC-HESI-HRMS,and 36 flavonoids and 18 other components were identified.These ingredients of patchouli not only had a good protective effect on the LPS-induced inflammation model of RAW264.7 cells,but also regulated the expression levels of arginine,L-leucine,cholesterol,fructose and sorbitol by down-regulating arginine metabolism,aminoacyl-tRNA biosynthesis,polyol/sorbitol pathway,so as to reduce inflammation and reduce cell damage.CONCLUSION:The non-volatile ingredients of patchouli had good anti-inflammatory effect and exerted its curative effect by regulating endogenous metabolic pathway to reduce inflammatory response.展开更多
目的:通过DNA条形码鉴定和建立特异性引物扩增的方法,有效区分菲牛蛭与其他水蛭品种。方法:通过聚合酶链式反应(PCR)对水蛭样品的COI序列进行扩增,利用MEGA 6.06软件通过建树法进行NJ树聚类分析,针对菲牛蛭素的编码基因序列、利用Primer...目的:通过DNA条形码鉴定和建立特异性引物扩增的方法,有效区分菲牛蛭与其他水蛭品种。方法:通过聚合酶链式反应(PCR)对水蛭样品的COI序列进行扩增,利用MEGA 6.06软件通过建树法进行NJ树聚类分析,针对菲牛蛭素的编码基因序列、利用Primer Premier 5软件进行引物设计,对经设计、合成的8对引物通过PCR扩增和琼脂糖凝胶电泳实验进行筛选,并确定特异性引物的最佳退火温度。结果:通过COI序列的NJ树聚类分析可以确定20批水蛭样品中的9批菲牛蛭样品,经过Primer Premier 5软件进行引物设计共选出8对引物进行合成,通过PCR扩增和琼脂糖凝胶电泳预实验筛选出引物7、为最佳实验引物,且确定了引物7的最佳退火温度为49℃。结论:通过COI序列的DNA条形码研究,确定了样品中的菲牛蛭,通过特异性引物PCR扩增和电泳检测,有效地将菲牛蛭与其他水蛭样品进行区分,为菲牛蛭的分子生物学鉴定方法提供了参考。展开更多
目的:建立青阳参苷甲对照品的制备方法和含量测定,为质量标准的提高提供参考。方法:采用植物化学方法制备青阳参苷甲作为对照品,采用质谱、核磁共振等光谱法鉴定对照品的结构,采用面积归一化法测定了对照品含量,并建立高效液相色谱法测...目的:建立青阳参苷甲对照品的制备方法和含量测定,为质量标准的提高提供参考。方法:采用植物化学方法制备青阳参苷甲作为对照品,采用质谱、核磁共振等光谱法鉴定对照品的结构,采用面积归一化法测定了对照品含量,并建立高效液相色谱法测定青阳参及同属药材白前、白薇和徐长卿中青阳参苷甲的含量。采用Waters X Select C18色谱柱(4.6 mm×250 mm,5μm),流动相为乙腈-水溶液(43∶57),流速1.0 m L·min^(-1);检测波长223 nm;柱温30℃;进样量10μL。结果:经过鉴定分离的青阳参苷甲纯度大于98%,可作为质量研究用对照品。青阳参苷甲质量浓度在5.62~224.8μg·mL^(-1)(r=0.9998,n=6)范围内线性关系良好,方法的平均回收率(n=6)为97.7%(RSD=1.4%)。白前、白薇和徐长卿中未检出青阳参苷甲,青阳参中青阳参苷甲含量在0.015%~0.070%。结论:青阳参苷甲是青阳参的特征成分,可作为该药材的定量指标。本文所建立的高效液相色谱法可作为青阳参药材质量标准中的含量测定方法。展开更多
基金Institute of Chinese Medicine Discipline Construction Project of National Institutes for Food and Drug Control:Disciplinary Construction Program of Chinese Medicine Institute of NIFDC(No.1020050090116)Training Fund for Academic Leaders of NIFDC(No.2023X10)Program of State Drug Administraion-Key Laboratory of Quality Control of Chinese Medicinal Materials and Decoction Pieces(No.2022GSMPA-KL02)。
文摘OBJECTIVE:To explore the anti-inflammatory components and mechanism of the non-volatile ingredients of patchouli.METHODS:High performance liquid chromatographyheated electron spray ionization-high resolution mass spectroscope(HPLC-HESI-HRMS)was used to analyze the chemical constituents of the non-volatile ingredients of patchouli.The anti-inflammatory activity of ingredients was evaluated using lipopolysaccharide(LPS)induced RAW264.7 cell inflammation model,and the antiinflammatory mechanism was investigated using multivariate statistical analysis of cell metabolomics.RESULTS:The non-volatile ingredients of patchouli were characterized by HPLC-HESI-HRMS,and 36 flavonoids and 18 other components were identified.These ingredients of patchouli not only had a good protective effect on the LPS-induced inflammation model of RAW264.7 cells,but also regulated the expression levels of arginine,L-leucine,cholesterol,fructose and sorbitol by down-regulating arginine metabolism,aminoacyl-tRNA biosynthesis,polyol/sorbitol pathway,so as to reduce inflammation and reduce cell damage.CONCLUSION:The non-volatile ingredients of patchouli had good anti-inflammatory effect and exerted its curative effect by regulating endogenous metabolic pathway to reduce inflammatory response.
文摘目的:通过DNA条形码鉴定和建立特异性引物扩增的方法,有效区分菲牛蛭与其他水蛭品种。方法:通过聚合酶链式反应(PCR)对水蛭样品的COI序列进行扩增,利用MEGA 6.06软件通过建树法进行NJ树聚类分析,针对菲牛蛭素的编码基因序列、利用Primer Premier 5软件进行引物设计,对经设计、合成的8对引物通过PCR扩增和琼脂糖凝胶电泳实验进行筛选,并确定特异性引物的最佳退火温度。结果:通过COI序列的NJ树聚类分析可以确定20批水蛭样品中的9批菲牛蛭样品,经过Primer Premier 5软件进行引物设计共选出8对引物进行合成,通过PCR扩增和琼脂糖凝胶电泳预实验筛选出引物7、为最佳实验引物,且确定了引物7的最佳退火温度为49℃。结论:通过COI序列的DNA条形码研究,确定了样品中的菲牛蛭,通过特异性引物PCR扩增和电泳检测,有效地将菲牛蛭与其他水蛭样品进行区分,为菲牛蛭的分子生物学鉴定方法提供了参考。
文摘目的:建立青阳参苷甲对照品的制备方法和含量测定,为质量标准的提高提供参考。方法:采用植物化学方法制备青阳参苷甲作为对照品,采用质谱、核磁共振等光谱法鉴定对照品的结构,采用面积归一化法测定了对照品含量,并建立高效液相色谱法测定青阳参及同属药材白前、白薇和徐长卿中青阳参苷甲的含量。采用Waters X Select C18色谱柱(4.6 mm×250 mm,5μm),流动相为乙腈-水溶液(43∶57),流速1.0 m L·min^(-1);检测波长223 nm;柱温30℃;进样量10μL。结果:经过鉴定分离的青阳参苷甲纯度大于98%,可作为质量研究用对照品。青阳参苷甲质量浓度在5.62~224.8μg·mL^(-1)(r=0.9998,n=6)范围内线性关系良好,方法的平均回收率(n=6)为97.7%(RSD=1.4%)。白前、白薇和徐长卿中未检出青阳参苷甲,青阳参中青阳参苷甲含量在0.015%~0.070%。结论:青阳参苷甲是青阳参的特征成分,可作为该药材的定量指标。本文所建立的高效液相色谱法可作为青阳参药材质量标准中的含量测定方法。
