[Objectives]To explore the influence of different times of steaming and exposing to the sun on the fingerprint of Polygonati Rhizoma by studying the HPLC fingerprint of Polygonati Rhizoma processed products with diffe...[Objectives]To explore the influence of different times of steaming and exposing to the sun on the fingerprint of Polygonati Rhizoma by studying the HPLC fingerprint of Polygonati Rhizoma processed products with different times of steaming and exposing to the sun,and to provide a basis for the determination of the best processing technology of Polygonati Rhizoma.[Methods]SETSAIL II AQ-C 18(5μm×250 mm×4.6 mm)was used as the column,the column temperature was 30℃,pure water(A)and acetonitrile(B)were eluted gradually,0-10 min,B(5%-10%),10-30 min,B(10%-35%),30-40 min,B(35%-60%),40-45 min,B(60%-100%),flow rate 1 mL/min,absorption wavelength 200 nm.[Results]The relative retained peak area RSDs of the common peaks in the precision,reproducibility and stability tests were all less than 5%.There were 17 common peaks in the fingerprint of nine batches of samples,and the retention time of Peak 2 was basically the same as that of the reference peak of 5-HMF.Peak 4 mainly existed in the chromatogram of Sample 3 to Sample 5,peaks 5 and 11 mainly existed after Sample 3,peaks 9,14 and 16 mainly existed after Sample 6,and peaks 12 and 17 mainly existed after Sample 4.[Conclusions]A total of 17 common peaks were obtained,and the Peak 2 was the designated peak,and the chemical components of each processed product were different.展开更多
Alternariol caused DNA single-strand breakage. Conversion of the closed circular double-stranded supercoiled DNA (pBR 322) to the nicked circular form and linear form was used to investigate the effect of extracts of ...Alternariol caused DNA single-strand breakage. Conversion of the closed circular double-stranded supercoiled DNA (pBR 322) to the nicked circular form and linear form was used to investigate the effect of extracts of some Chinese medical herbs on DNA nicking induced by alternariol. Some substances in the extracts of Rhizoma polygonati (RP) and Fructus lycii (FL) were shown to protect DNA from the attack by alternariol.Some substance in the RP may bind to plasmid DNA, and this binding reduces the electrophoretic mobility of DNA. These results indicate that substances from FL and RP may be used as DNA protectors. It is possible that they play an important role in preventing cancer.展开更多
Huang Jing (黄精 Polygonati Rhizoma, PR) was first documented as a herbal medicine in Ming Yi Bie Lu (《名医别录》 Miscellaneous Records of Famous Physicians) in China. However, there was no comprehensive review on th...Huang Jing (黄精 Polygonati Rhizoma, PR) was first documented as a herbal medicine in Ming Yi Bie Lu (《名医别录》 Miscellaneous Records of Famous Physicians) in China. However, there was no comprehensive review on the botany, traditional uses, and pharmacological effects of PR till now. In this study, the botany, traditional uses including Taoist medicine, and pharmacological effects of PR were reviewed and summarized to provide insights on drug development of PR. In Taoist medicine, PR maintains agerasia and helps prolong human life-span, and is used for fasting (Bigu). In the Zhong Guo Yao Dian (《中国药典》Chinese Pharmacopeia) version 2020, PR exerts replenishing qi and nourishing yin, invigorating the spleen, moistening the lung, and strengthening the kidney. Pharmacological studies show that PR has effects of anti-oxidation, anti-diabetes, anti-osteoporosis, anti-cancer, anti-hyperlipidemia, cardiomyocyte protection, immunomodulatory, and thus can be used for treatment of infertility, anti-microorganisms, and improving sleep and memory. In conclusion, PR may play a potential role for chronic disease management and health preservation and this very role deserves a more in-depth research.展开更多
[Objectives]This study aimed to investigate the water extraction-alcohol precipitation technology and content determination method of polysaccharides in Rhizoma Polygonati.[Methods]Taking the content of polysaccharide...[Objectives]This study aimed to investigate the water extraction-alcohol precipitation technology and content determination method of polysaccharides in Rhizoma Polygonati.[Methods]Taking the content of polysaccharides in the extract as the indicator,the extraction process was optimized using single-factor tests and Box-Behnken Design.The content of polysaccharides extracted was determined by the anthrone-sulfuric acid method.Among the three factors in the test design,the solid/liquid ratio and extraction time had a significant effect(P<0.05,P<0.01),while the extraction temperature had no effect on the content of polysaccharides extracted(P>0.05).[Results]The optimal extraction process for polysaccharides in Rhizoma Polygonati was as follows:liquid/solid ratio 20∶1(mL/g),extraction time 2 h,and extraction temperature 85℃.Under the optimal extraction process,the content of polysaccharides in the extract reached 12.50%.[Conclusions]The extraction process optimized by response surface methodology for polysaccharides in Rhizoma Polygonati is reliable and has practical value,and can be used to guide production practices.展开更多
Objective To explore the major compound in Polygonati Rhizoma(Huang Jing,黄精)for quality control.Methods The major compound was isolated and analyzed by liquid chromatography-mass spectrometry(LC-MS),and subsequently...Objective To explore the major compound in Polygonati Rhizoma(Huang Jing,黄精)for quality control.Methods The major compound was isolated and analyzed by liquid chromatography-mass spectrometry(LC-MS),and subsequently further identified by nuclear magnetic resonance(NMR).Thin layer chromatography(TLC)was optimized based on the previous methods reported in the Chinese Pharmacopeia(2015 edition).Results The major compound was isolated from the natural material and identified as linoleic acid.A high performance liquid chromatography(HPLC)method with robust linearity(R2=0.9997),specificity,precision,stability,repeatability and recovery was developed for linoleic acid determination.TLC chromatogram was improved significantly after optimization for qualitative analysis.Conclusions The optimized TLC method is practical and can be adopted for quality control of Polygonati Rhizoma(Huang Jing,黄精).The levels of linoleic acid vary between species of Polygonati Rhizoma(Huang Jing,黄精),with Polygonatum cyrtonema Hua(Jiang Xing Huang Jing,姜型黄精)showing the highest contents.This study provides valuable information for quality control of Polygonati Rhizoma(Huang Jing,黄精).展开更多
试验旨在优化复合酶协同超声水提醇沉法制备黄精粗多糖(crude polysaccharide of po⁃lygahatous,CPP)的工艺并检测其体外抗氧化活性。试验以质量源于设计(qulity by design,QbD)理念为指导,以黄精多糖得率和含量为指标,应用Box-Behnken...试验旨在优化复合酶协同超声水提醇沉法制备黄精粗多糖(crude polysaccharide of po⁃lygahatous,CPP)的工艺并检测其体外抗氧化活性。试验以质量源于设计(qulity by design,QbD)理念为指导,以黄精多糖得率和含量为指标,应用Box-Behnken响应面设计法(BBD)对CPP制备工艺的关键因素:酶解温度、加酶量、超声时间、醇沉浓度进行优化;以维生素C(Vitamin C,VC)为对照,对CPP进行1,1-二苯基-2-三硝基苯肼(1,1-Diphenyl-2-picrylhydrazyl,DPPH)自由基和羟基(·OH)自由基清除能力的检测,评价CPP体外抗氧化活性。结果表明:CPP最佳制备工艺为酶解温度55℃,复合酶(纤维素酶∶果胶酶=1∶1)用量0.28%,超声时间50 min,醇沉浓度78%;采用该制备工艺,CPP的得率为(28.12±1.43)%,多糖含量为(33.74±1.32)%。不同浓度CPP能够有效清除DPPH自由基和抑制·OH的产生。由此可见,优化的CPP制备工艺稳定可行,且所制得的CPP具有一定的体外抗氧化活性。展开更多
目的 整合网络药理学、分子对接技术探究熟地黄—黄精治疗阿尔茨海默病(Alzheimer’s disease, AD)的作用机制。方法 在中药系统药理数据库(Traditional Chinese Medicine System Pharmacology, TCMSP)数据库中收集熟地黄、黄精化学成...目的 整合网络药理学、分子对接技术探究熟地黄—黄精治疗阿尔茨海默病(Alzheimer’s disease, AD)的作用机制。方法 在中药系统药理数据库(Traditional Chinese Medicine System Pharmacology, TCMSP)数据库中收集熟地黄、黄精化学成分和潜在作用靶点,在在线人类孟德尔遗传(online mendelian inheritance in man, OMIM)、治疗靶点(therapeutic target database, TTD)、GeneCards、Drug Bank数据库收集AD疾病靶点基因,运用Cytoscape3.9.1构建“中药—成分—靶点”网络;将熟地黄、黄精与AD的交集靶点基因上传至STRING数据库中分析核心靶点基因;将交集靶点上传至DAVID数据库中进行GO和KEGG富集分析,并通过分子对接检测核心化学成分和核心靶点基因的结合能力。结果 在熟地黄、黄精中共筛选出13个化学成分,其中薯蓣皂苷、3′-甲氧基黄豆苷、豆甾醇、黄芩苷、β-谷甾醇为核心化学成分;AD相关靶点共筛选出2471个,熟地黄、黄精与AD的交集靶点共有68个;PPI分析显示,蛋白激酶B(protein kinase B,Akt1)、前列腺素G/H合成酶2(prostaglandin G/H synthase 2,PTGS2)、凋亡相关蛋白Caspase-3等为核心交集靶点基因;GO分析显示,生物过程主要涉及对含氧化合物、对化学物质的反应等,细胞组成主要涉及神经元投射、神经元部分、躯体树突间室等,分子功能主要涉及酶结合、G蛋白偶联胺受体活性、相同蛋白质结合等;KEGG分析结果显示,核心靶点基因涉及的通路主要为内分泌抵抗、麻疹、雌激素信号通路、凋亡、流体剪切应力与动脉粥样硬化等;分子对接结果显示,核心化学成分黄芩苷、β-谷甾醇、3′-甲氧基黄豆苷与核心靶点结合效能高。结论 熟地黄、黄精防治AD的成分主要为黄芩苷、β-谷甾醇、3′-甲氧基黄豆苷等,这些成分可通过调节10个核心靶点基因发挥防治AD的作用,其机制可能与凋亡、雌激素通路等5个途径有关。展开更多
基金Supported by General Program of Guangxi Natural Science Foundation(2022GXNSFAA035599).
文摘[Objectives]To explore the influence of different times of steaming and exposing to the sun on the fingerprint of Polygonati Rhizoma by studying the HPLC fingerprint of Polygonati Rhizoma processed products with different times of steaming and exposing to the sun,and to provide a basis for the determination of the best processing technology of Polygonati Rhizoma.[Methods]SETSAIL II AQ-C 18(5μm×250 mm×4.6 mm)was used as the column,the column temperature was 30℃,pure water(A)and acetonitrile(B)were eluted gradually,0-10 min,B(5%-10%),10-30 min,B(10%-35%),30-40 min,B(35%-60%),40-45 min,B(60%-100%),flow rate 1 mL/min,absorption wavelength 200 nm.[Results]The relative retained peak area RSDs of the common peaks in the precision,reproducibility and stability tests were all less than 5%.There were 17 common peaks in the fingerprint of nine batches of samples,and the retention time of Peak 2 was basically the same as that of the reference peak of 5-HMF.Peak 4 mainly existed in the chromatogram of Sample 3 to Sample 5,peaks 5 and 11 mainly existed after Sample 3,peaks 9,14 and 16 mainly existed after Sample 6,and peaks 12 and 17 mainly existed after Sample 4.[Conclusions]A total of 17 common peaks were obtained,and the Peak 2 was the designated peak,and the chemical components of each processed product were different.
文摘Alternariol caused DNA single-strand breakage. Conversion of the closed circular double-stranded supercoiled DNA (pBR 322) to the nicked circular form and linear form was used to investigate the effect of extracts of some Chinese medical herbs on DNA nicking induced by alternariol. Some substances in the extracts of Rhizoma polygonati (RP) and Fructus lycii (FL) were shown to protect DNA from the attack by alternariol.Some substance in the RP may bind to plasmid DNA, and this binding reduces the electrophoretic mobility of DNA. These results indicate that substances from FL and RP may be used as DNA protectors. It is possible that they play an important role in preventing cancer.
基金The study was financially supported by the National Natural Science Foundation of China(No.81874356)the Open Project of Hubei Key Laboratory of Wudang Local Chinese Medicine Research from Hubei University of Medicine(Nos.WDCM2018002,WDCM201917,and WDCM201918)+1 种基金the Chinese Medicine Project of Health Commission of Hubei Province(No.ZY2021010)the Foundation for Innovative Research Team of Hubei University of Medicine(No.2018YHKT01).
文摘Huang Jing (黄精 Polygonati Rhizoma, PR) was first documented as a herbal medicine in Ming Yi Bie Lu (《名医别录》 Miscellaneous Records of Famous Physicians) in China. However, there was no comprehensive review on the botany, traditional uses, and pharmacological effects of PR till now. In this study, the botany, traditional uses including Taoist medicine, and pharmacological effects of PR were reviewed and summarized to provide insights on drug development of PR. In Taoist medicine, PR maintains agerasia and helps prolong human life-span, and is used for fasting (Bigu). In the Zhong Guo Yao Dian (《中国药典》Chinese Pharmacopeia) version 2020, PR exerts replenishing qi and nourishing yin, invigorating the spleen, moistening the lung, and strengthening the kidney. Pharmacological studies show that PR has effects of anti-oxidation, anti-diabetes, anti-osteoporosis, anti-cancer, anti-hyperlipidemia, cardiomyocyte protection, immunomodulatory, and thus can be used for treatment of infertility, anti-microorganisms, and improving sleep and memory. In conclusion, PR may play a potential role for chronic disease management and health preservation and this very role deserves a more in-depth research.
基金Innovation and Entrepreneurship Training Program for Undergraduates of Liaoning Institute of Science and Technology(202011430059)Research Project of Undergraduate Teaching Reform in General Higher Education in Liaoning Province 2018:High-quality Teaching Resource Construction and Sharing Project(247).
文摘[Objectives]This study aimed to investigate the water extraction-alcohol precipitation technology and content determination method of polysaccharides in Rhizoma Polygonati.[Methods]Taking the content of polysaccharides in the extract as the indicator,the extraction process was optimized using single-factor tests and Box-Behnken Design.The content of polysaccharides extracted was determined by the anthrone-sulfuric acid method.Among the three factors in the test design,the solid/liquid ratio and extraction time had a significant effect(P<0.05,P<0.01),while the extraction temperature had no effect on the content of polysaccharides extracted(P>0.05).[Results]The optimal extraction process for polysaccharides in Rhizoma Polygonati was as follows:liquid/solid ratio 20∶1(mL/g),extraction time 2 h,and extraction temperature 85℃.Under the optimal extraction process,the content of polysaccharides in the extract reached 12.50%.[Conclusions]The extraction process optimized by response surface methodology for polysaccharides in Rhizoma Polygonati is reliable and has practical value,and can be used to guide production practices.
基金We thank for the funding support from the National Standardization Construction in TCMs of China(No.ZYBZH-Y-HUN-23)National Key Research and Development Projects of China(No.2018YFC1707903)Key Research and Development Projects of Hunan Province(No.2018SK2119).
文摘Objective To explore the major compound in Polygonati Rhizoma(Huang Jing,黄精)for quality control.Methods The major compound was isolated and analyzed by liquid chromatography-mass spectrometry(LC-MS),and subsequently further identified by nuclear magnetic resonance(NMR).Thin layer chromatography(TLC)was optimized based on the previous methods reported in the Chinese Pharmacopeia(2015 edition).Results The major compound was isolated from the natural material and identified as linoleic acid.A high performance liquid chromatography(HPLC)method with robust linearity(R2=0.9997),specificity,precision,stability,repeatability and recovery was developed for linoleic acid determination.TLC chromatogram was improved significantly after optimization for qualitative analysis.Conclusions The optimized TLC method is practical and can be adopted for quality control of Polygonati Rhizoma(Huang Jing,黄精).The levels of linoleic acid vary between species of Polygonati Rhizoma(Huang Jing,黄精),with Polygonatum cyrtonema Hua(Jiang Xing Huang Jing,姜型黄精)showing the highest contents.This study provides valuable information for quality control of Polygonati Rhizoma(Huang Jing,黄精).
文摘试验旨在优化复合酶协同超声水提醇沉法制备黄精粗多糖(crude polysaccharide of po⁃lygahatous,CPP)的工艺并检测其体外抗氧化活性。试验以质量源于设计(qulity by design,QbD)理念为指导,以黄精多糖得率和含量为指标,应用Box-Behnken响应面设计法(BBD)对CPP制备工艺的关键因素:酶解温度、加酶量、超声时间、醇沉浓度进行优化;以维生素C(Vitamin C,VC)为对照,对CPP进行1,1-二苯基-2-三硝基苯肼(1,1-Diphenyl-2-picrylhydrazyl,DPPH)自由基和羟基(·OH)自由基清除能力的检测,评价CPP体外抗氧化活性。结果表明:CPP最佳制备工艺为酶解温度55℃,复合酶(纤维素酶∶果胶酶=1∶1)用量0.28%,超声时间50 min,醇沉浓度78%;采用该制备工艺,CPP的得率为(28.12±1.43)%,多糖含量为(33.74±1.32)%。不同浓度CPP能够有效清除DPPH自由基和抑制·OH的产生。由此可见,优化的CPP制备工艺稳定可行,且所制得的CPP具有一定的体外抗氧化活性。