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A rapid analysis method to discover antioxidant active components and mechanisms in soybean:untargeted metabolomics combined with network pharmacology and spectrum-effect relationship-component knockout-identification techniques
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作者 Xuqiang Liu Xinjing Meng +3 位作者 Dongqi Liu Junshang Liu Mengqi Lan Wenyi Kang 《Food Science and Human Wellness》 2025年第9期3753-3763,共11页
Soybean is widely used in diets,and numerous reports have highlighted its antioxidant properties.However,constructing a methodology for rapid identifying and predicting a series of antioxidant active ingredients in So... Soybean is widely used in diets,and numerous reports have highlighted its antioxidant properties.However,constructing a methodology for rapid identifying and predicting a series of antioxidant active ingredients in Soybean presents certain challenges.Therefore,we introduced the spectrum-effect relationship-ingredient knockout identification technique to identify a series of antioxidant active ingredients in soybean.By combining untargeted metabolomics with network pharmacology,we predicted the antioxidant active ingredients and their target sites.We successfully identified 4 antioxidant active compounds(daidzein,genistein,daidzein,and glycitin)and 10 corresponding antioxidant targets(epidermal growth factor receptor(EGFR),estrogen receptor 1(ESR1),steroid receptor coactivator(SRC),tumor necrosis factor(TNF),kinase insert domain receptor(KDR),AKT serine/threonine kinase 1(AKT1),growth factor receptor bound protein 2(GRB2),signal transducer and activator of transcription1(STAT1),mitogen-activated protein kinase 8(MAPK8),B-cell lymphoma-2(BCL2))by our analysis.The validation results from cell experiments revealed that glycitin exhibited the best antioxidant activity and significantly influenced the expression of EGFR and the proteins associated with nuclear factor erythroid 2-related factor 2/NAD(P)H quinone dehydrogenase 1(NRF2/NQO1)signaling pathways.These findings were consistent with the predicted outcomes and were further confirmed in a zebrafish model.It suggests that glycitin may exert antioxidant effects by regulating the expression of EGFR,NRF2,and NQO1 proteins.The results demonstrate that a rapid analytical method for determining antioxidant activity was established. 展开更多
关键词 SOYBEAN ANTIOXIDANT Metabolomics Network pharmacology spectrum-effect relationship
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The spectrum-effect relationship——a rational approach to screening effective compounds, reflecting the internal quality of Chinese herbal medicine 被引量:38
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作者 ZHU Chun-Sheng LIN Zhi-Jian +2 位作者 XIAO Ming-Liang NIU Hong-Juan ZHANG Bing 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2016年第3期177-184,共8页
Since the chromatographic fingerprint was introduced, it has been accepted by many countries to assess the quality and authenticity of Chinese herbal medicine (CHM). However, solely using the chromatographic fingerp... Since the chromatographic fingerprint was introduced, it has been accepted by many countries to assess the quality and authenticity of Chinese herbal medicine (CHM). However, solely using the chromatographic fingerprint to assay numerous chemicals is not suitable for the assessment of the whole internal quality and pharmacodynamics of CHM. Consequently, it is necessary to develop a rational approach to connecting the chromatographic fingerprint with effective components to assess the internal quality of CHM. For this purpose, a spec^tun-effect relationship theory was proposed and accepted as a new method for the assessment of CHM because of its potential use to screen effective components from CHM. In this paper, we systematically reviewed the application of the spectrum-effect relationship theory in the research of CHM, including research mentality, different chromatographic analysis techniques, data processing technologies, and structure determination. 展开更多
关键词 Chinese herbal medicine Chromatographic fingerprint spectrum-effect relationship
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Spectrum-effect relationship between HPLC fingerprints and bioactive components of Radix Hedysari on increasing the peak bone mass of rat 被引量:6
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作者 Xin-Yue Chen San-Hu Gou +2 位作者 Zhi-Qiang Shi Zhi-Yuan Xue Shi-Lan Feng 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2019年第4期266-273,共8页
The traditional Chinese medicine of Radix Hedysari plays an important role in invigorating gas for ascending, benefiting blood for promoting production of fluid, and promoting circulation for removing obstruction in c... The traditional Chinese medicine of Radix Hedysari plays an important role in invigorating gas for ascending, benefiting blood for promoting production of fluid, and promoting circulation for removing obstruction in collaterals, which is consistent with the principle of treatment for osteoporosis. This study is designed to investigate the bioactive components on increasing peak bone mass (PBM) by exploring the spectrum-effect relationship between chromatography fingerprints and effect. Multiple indicators are selected to evaluate the pharmacological activity. In fingerprints, 21 common peaks are obtained, five of which are identified. Furthermore, gray relational analysis (GRA) is a quantitative method of gray system theory and is used to describe the correlation degree of common peaks and pharmacological activities with relational value. 21 components are then divided into three different regions, of which ononin and calycosin play an extremely significant role in increasing PBM. In addition, factor analysis and hierarchical cluster analysis (HCA) are used to screen the optimal producing area for Radix Hedysari. This provides a comprehensive and efficient method to improve the quality evaluation of Radix Hedysari, confirming the bioactive components for PBM-enhancement and further develop its medicinal value. 展开更多
关键词 Factor ANALYSIS GRAY RELATIONAL ANALYSIS Hierarchical cluster ANALYSIS PEAK BONE mass RADIX Hedysari spectrum-effect relationship
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Spectrum-Effect Relationship Between High Performance Liquid Chromatography Fingerprints and Anticoccidial Activities of a Compound Chinese Medicine 被引量:6
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作者 XIAO Sui FEI Chen-zhong +3 位作者 ZHANG Li-fang ZHENG Wen-li ZHANG Ke-yu XUE Fei-qun 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2014年第5期1082-1089,共8页
Quality control and screening of active substances in traditional Chinese medicines have been performed using fingerprint analysis.The spectrum-effect relationship between chromatography fingerprints and efficacy of h... Quality control and screening of active substances in traditional Chinese medicines have been performed using fingerprint analysis.The spectrum-effect relationship between chromatography fingerprints and efficacy of herbal drugs is considered as a potentially useful method for determining active ingredients in complex mixtures.The study was designed to develop a method for determining the bioactive components of a compound Chinese medicine called Tiefeng based on spectrum-effect relationships between high-performance liquid chromatography(HPLC)fingerprints and anticoccidial activities.Four peaks of the established HPLC fingerprint indicate the main bioactive components of this medicine.In addition,pharrnacodynamic atlas was defined and used to assess the anticoccidial activity of Tiefeng from different sources for the first time.We found that the level of anticoccidial activity of Tiefeng was consistent with the degree of similarity between the pharmacodynamic atlas and chromatogram of any sample.Furthermore,effect of this medicine was related with the main active constituents,along with the origin and the harvesting time. 展开更多
关键词 herb medicine FINGERPRINT anticoccidial index spectrum-effect relationship
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Spectrum-effect relationship of immunologic activity of Ganoderma lucidum by UPLC-MS/MS and component knock-out method 被引量:7
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作者 Changqin Li Yiping Cui +5 位作者 Jie Lu Lijun Meng Changyang Ma Zhenhua Liu Yan Zhang Wenyi Kang 《Food Science and Human Wellness》 SCIE 2021年第3期278-288,共11页
This study was designed to elucidate the immunoregulation of Ganoderma lucidum.HPLC fingerprint and spectrum-effect relationship of G.lucidum were established to predict the active compounds and BP neural network mode... This study was designed to elucidate the immunoregulation of Ganoderma lucidum.HPLC fingerprint and spectrum-effect relationship of G.lucidum were established to predict the active compounds and BP neural network model was established to predict the efficacy.Then the target compounds were identified by high resolution mass spectrometry.The results indicated that there are both enhanced immunity and immunosuppressive components in G.lucidum.BP neural network was trained with the common peak area and immune effi cacy index of G.lucidum fi ngerprint as samples,and a combined evaluation system of G.lucidum fi ngerprint effi cacy was established.The correlation coeffi cient R of BP network model was 0.98643,and the error of pharmacodynamic prediction results was in the ideal range.Eight compounds were identifi ed by high resolution mass spectrometry.The compounds related to immune activity in G.lucidum were determined in this study. 展开更多
关键词 Ganoderma lucidum RAW 264.7 cell spectrum-effect relationships Component knock-out BP neural network
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Screening hepatoprotective effective components of Lonicerae japonica Flos based on the spectrum-effect relationship and its mechanism exploring 被引量:3
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作者 Song Wang Lin Yang +4 位作者 Ajiao Hou Songtao Liu Liu Yang Haixue Kuang Hai Jiang 《Food Science and Human Wellness》 SCIE CSCD 2023年第1期283-294,共12页
Lonicerae japonicae Flos(LF)is a kind of healthcare food with hepatoprotective function.This study was designed to explore the spectrum-effect relationships between UPLC fingerprints and the hepatoprotective effects o... Lonicerae japonicae Flos(LF)is a kind of healthcare food with hepatoprotective function.This study was designed to explore the spectrum-effect relationships between UPLC fingerprints and the hepatoprotective effects of LF.Fingerprints of ten batches of LF were established by UPLC-PDA.The inhibitory levels of AST and ALT were used as pharmacological indexes,and secoxyloganin,isochlorogenic acid A and isochlorogenic acid C were screened as hepatoprotective active compounds by grey relational analysis(GRA)and partial least squares regression analysis(PLSR).Caspase-3 was obtained by network pharmacology as a key target of hepatoprotective active compounds.Molecular docking is used to explore the interaction between small molecules and proteins.This work provided a general model of the combination of UPLC-PDA and hepatoprotective effect to study the spectrum-effect relationship of LF,which can be used to considerable methods and insight for the fundamental research of the material basis of similar healthcare food. 展开更多
关键词 Lonicerae japonicae Flos Hepatoprotective effect spectrum-effect relationship Molecular docking MECHANISM
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三七及其炮制品HPLC指纹图谱与体外抗氧化活性的谱效关系研究
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作者 唐林 鹿爱娟 +4 位作者 胡超 李海英 高元航 李昊 杨磊 《天然产物研究与开发》 北大核心 2026年第1期1-12,共12页
分析不同炮制三七的HPLC指纹图谱与体外抗氧化活性差异,并进行谱效关系研究。采用HPLC法建立36批次不同炮制三七(三七、蒸三七、油炸三七)的指纹图谱并对主要特征峰进行HPLC-Q-TOF-MS分析,结合主成分分析(principal component analysis,... 分析不同炮制三七的HPLC指纹图谱与体外抗氧化活性差异,并进行谱效关系研究。采用HPLC法建立36批次不同炮制三七(三七、蒸三七、油炸三七)的指纹图谱并对主要特征峰进行HPLC-Q-TOF-MS分析,结合主成分分析(principal component analysis,PCA)、层次聚类分析(hierarchical clustering analysis,HCA)、偏最小二乘回归分析(partial least squares regression,PLSR)对其进行质量评价并筛选差异标志物;通过DPPH自由基清除能力、FRAP总抗氧化能力和ABTS自由基清除能力测定评价其抗氧化活性;运用PLSR和皮尔逊(Pearson)分析三七及其炮制品化学成分与抗氧化活性的谱效关系。36批次不同炮制三七HPLC指纹图谱共37个特征峰,其中对33个特征峰进行了指认。PCA、HCA、PLSR将三七及其炮制品分为3类,并筛选出13个差异标志物。三七炮制后抗氧化活性显著增强,且抗氧化活性油炸三七>蒸三七>三七。6个特征性成分与三七抗氧化活性关联较大,包括麦芽三糖、人参皂苷Rh_(4)、人参皂苷F_(2)、人参皂苷Rg_(2)、人参皂苷Rk_(1)、人参皂苷Rg_(5)。本研究建立了基于化学成分和抗氧化活性的不同炮制三七质量评价模式,为阐明三七及其炮制品抗氧化活性成分及质量控制提供参考。 展开更多
关键词 三七 炮制 抗氧化 谱效关系 指纹图谱
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基于谱效-毒关系探讨川楝子醋炙减毒增效物质基础
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作者 牛乐 张雨 +2 位作者 范蒙蒙 李红伟 李凯 《中华中医药学刊》 北大核心 2026年第1期72-76,I0008,共6页
目的基于谱效关系和谱毒关系探讨川楝子醋炙减毒增效机理,为其进一步开发利用提供参考。方法采用UPLC双波长测定法,建立川楝子生品及醋炙品指纹图谱,结合主成分分析和偏最小二乘法分析评价川楝子醋炙前后成分变化;以二甲苯致耳肿胀为炎... 目的基于谱效关系和谱毒关系探讨川楝子醋炙减毒增效机理,为其进一步开发利用提供参考。方法采用UPLC双波长测定法,建立川楝子生品及醋炙品指纹图谱,结合主成分分析和偏最小二乘法分析评价川楝子醋炙前后成分变化;以二甲苯致耳肿胀为炎症模型,以炎症抑制率为指标考察川楝子醋炙前后抗炎活性;以血清中总胆汁酸(TBA)、谷草转氨酶(AST)、谷丙转氨酶(ALT)、碱性磷酸酶(ALP)的含量为指标考察川楝子醋炙前后肝毒性作用;采用灰色关联度法考察分析川楝子醋炙前后指纹图谱与抗炎作用和肝毒性的相关性。结果指纹图谱研究显示,生品与醋炙品在210、254 nm波长下分别共匹配16个和13个共有峰;采用主成分分析可将生川楝子与醋川楝子明显区分,采用正交偏最小二乘-判别分析筛选出醋炙前后共13个差异性成分。谱效关系结果显示川楝素、阿魏酸、芦丁、异槲皮苷是抗炎作用关联度较大的化学成分,谱毒关系结果显示川楝素是与肝毒性关联度最大的化学成分。结论川楝子醋炙后可有效降低肝毒性,并增强抗炎活性,川楝子醋炙减毒增效与川楝素、阿魏酸、芦丁、异槲皮苷的成分变化有关,这为川楝子醋炙品的临床应用提供依据。 展开更多
关键词 川楝子 醋炙 指纹图谱 化学模式识别 谱效-毒关系 抗炎作用 肝毒性
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基于谱效关系的黄连不同方法提取物抑菌作用物质基础初步研究
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作者 倪晓霞 陈巧秀 +1 位作者 杨育儒 曹毅祥 《药学实践与服务》 2026年第2期80-84,共5页
目的 建立黄连提取物的高效液相色谱法(HPLC)指纹图谱及其体外抑制金黄色葡萄球菌作用的谱-效关系,为探索黄连抑菌作用的药效物质基础提供依据。方法 分别以60%乙醇、1%盐酸甲醇以及水为提取溶剂,采用超声、加热回流以及浸泡等提取方法... 目的 建立黄连提取物的高效液相色谱法(HPLC)指纹图谱及其体外抑制金黄色葡萄球菌作用的谱-效关系,为探索黄连抑菌作用的药效物质基础提供依据。方法 分别以60%乙醇、1%盐酸甲醇以及水为提取溶剂,采用超声、加热回流以及浸泡等提取方法制备9种黄连提取物;建立提取物HPLC指纹图谱;以金黄色葡萄球菌为对象,根据培养基微量稀释法,采用酶标仪测定吸光度,计算抑菌率;运用灰色关联分析法(GRA)对谱-效数据进行关联分析。结果 建立9种黄连提取物的HPLC指纹图谱,确定9个共有特征指纹峰,通过对照品对比指认其中5个峰;GRA分析显示:9个共有峰成分与抑菌作用的关联度均在0.559 1~0.803 3之间;其中3号峰、8号峰(盐酸巴马汀)、9号峰(盐酸小檗碱)为正相关,其中9号峰(盐酸小檗碱)的相关度最高,其关联度值为0.803 3。结论 通过对黄连提取物谱-效关系进行研究,以盐酸小檗碱为主的生物碱类物质可能是黄连抑制金黄色葡萄球菌的主要药效物质基础。 展开更多
关键词 黄连 谱-效关系研究 药效物质基础 抑菌作用 金黄色葡萄球菌
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Toxicity of Five Herbs in Aconitum L. on Tetrahymena thermophila Based on Spectrum-effect Relationship 被引量:6
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作者 Xiao-jiao Sun Tian-tian Liu +8 位作者 Yan-ling Zhao Wen-jun Zou Jia-bo Wang Shu-xian Liu Zhi-yong Sun Rui-sheng Li Xu Zhou Man Gong Rui-lin Wang 《Chinese Herbal Medicines》 CAS 2014年第1期29-35,共7页
Objective To explore the active components with toxic effects in five Aconitum L. herbal medicines on Tetrahymena thermophila. Methods The fingerprints of five Aconitum L. herbal medicines were established by ultra-hi... Objective To explore the active components with toxic effects in five Aconitum L. herbal medicines on Tetrahymena thermophila. Methods The fingerprints of five Aconitum L. herbal medicines were established by ultra-high performance liquid chromatography (UPLC) and the toxicity was evaluated by using a TAM Air Isothermal Calorimeter on Tetrahymena thermophila SB1 10. Results By analyzing the spectrum- effect relationships between UPLC fingerprints and toxic effects, the active components which had the toxic effects were obtained. Conclusion This work provides a general model of the combination of UPLC and microcalorimetry to study the spectrum-effect relationships of the five Aconitum L. herbal medicines, which could be used to evaluate the toxic effects and analyze the principal toxic components of the five Aconitum L. herbal medicines. On the whole, this result provides the experimental basis for the safe use of the five Aconitum L. herbal medicines in clinic. 展开更多
关键词 Aconitum L. herbal medicines MICROCALORIMETRY spectrum-effect relationships Tetrahymena thermophila ultra-high performance liquid chromatography
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Identification of anti-inflammatory components in Panax ginseng of Sijunzi Decoction based on spectrum-effect relationship 被引量:7
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作者 Hong Kan Dongxue Zhang +5 位作者 Weijia Chen Shihan Wang Zhongmei He Shifeng Pang Shuai Qu Yingping Wang 《Chinese Herbal Medicines》 CAS 2023年第1期123-131,共9页
Objective: This study aimed to identify the main medicinal active components of Panax ginseng(P. ginseng) in the compatibility environment of clinical application. For this purpose, the anti-inflammatory ingredients o... Objective: This study aimed to identify the main medicinal active components of Panax ginseng(P. ginseng) in the compatibility environment of clinical application. For this purpose, the anti-inflammatory ingredients of P. ginseng were investigated based on its therapeutic effect in Sijunzi Decoction(SJD) which is a widely used traditional Chinese formula.Methods: The fingerprints of 10 batches of SJD consisting of different sources of P. ginseng were established by UPLC technique to investigate the chemical components. At the same time, the antiinflammatory effects of these components were evaluated by dextran sulfate sodium-induced ulcerative colitis mouse model. Grey relational analysis was applied to explore the correlation degree between fingerprints and anti-inflammatory effects in SJD. Lipopolysaccharide-stimulated RAW264.7 murine macrophages were established to evaluate the anti-inflammatory action of the screened effective substances of P. ginseng.Results: According to grey relational analysis, notoginsenoside R1, ginsenoside Rg2 and ginsenoside Rb3of P. ginseng were the major anti-inflammatory contributions in SJD. They had been proven to be closely associated with the anti-inflammatory process of SJD and displayed a close effect compared with SJD by LPS-stimulated RAW264.7 murine macrophages.Conclusion: Our work provides a general strategy for exploring the pharmacological ingredients of P. ginseng in traditional Chinese formulas which is beneficial for establishing the quality standards of traditional herbs in traditional Chinese medicine prescription based on their clinical therapeutic effect. 展开更多
关键词 ANTI-INFLAMMATION GINSENOSIDES Panax ginseng C.A.Mey Sijunzi Decoction spectrum-effect relationship ulcerative colitis
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基于谱-效关系的青刺尖抗氧化活性成分分析
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作者 桂鹏燕 杨秀霞 +1 位作者 杨兆祥 曲丽萍 《食品工业科技》 北大核心 2026年第4期348-359,共12页
为探究青刺尖(Prinsepia utilis Royle)主要抗氧化活性成分,阐明其药效物质基础,本研究以1,1-二苯基-2-三硝基苯肼自由基(1,1-diphenyl-2-picryl-hydrazyl radical,DPPH·)清除率为指标,采用高效液相色谱(high performance liquid c... 为探究青刺尖(Prinsepia utilis Royle)主要抗氧化活性成分,阐明其药效物质基础,本研究以1,1-二苯基-2-三硝基苯肼自由基(1,1-diphenyl-2-picryl-hydrazyl radical,DPPH·)清除率为指标,采用高效液相色谱(high performance liquid chromatography,HPLC)建立11批青刺尖提取物指纹图谱,并结合皮尔逊、斯皮尔曼和偏最小二乘回归分析探讨了指纹图谱共有峰与抗氧化作用间的谱-效关系,筛选出对抗氧化活性贡献较大的组分进行质谱定性和高效液相色谱定量分析,进一步通过体外DPPH·、ABTS^(+)·、·OH清除能力和人皮肤成纤维细胞(human foreskin fibroblasts,HFF)抗衰活性检测,评价其抗氧化及抗衰活性。结果从11批青刺尖提取物指纹图谱中标定13个色谱峰,并识别出其中6个化学成分,其中芦丁、水仙苷、碟豆素、夏佛塔苷和香蒲新苷等化合物为青刺尖发挥抗氧化功效的潜在物质成分,定量分析结果表明各化学成分的含量存在一定差异,碟豆素含量最高(738.123μg/mL),其次是芦丁(538.612μg/mL)、水仙苷(385.881μg/mL)和香蒲新苷(337.168μg/mL),且各单体化合物均表现出较好的自由基清除活性和良好的抗衰效果,其中芦丁和水仙苷能有效清除DPPH·、ABTS^(+)·及·OH,其中芦丁对DPPH·和ABTS^(+)·的清除率分别为92.84%和92.44%,对·OH清除作用的IC_(50)值为0.45 mg/mL;水仙苷对DPPH·和ABTS^(+)·的清除率为37.71%和82.01%,·OH清除作用的IC_(50)值为1.01 mg/mL。夏佛塔苷、香蒲新苷(P<0.01)及芦丁(P<0.05)可显著抑制SA-β-gal活性,降低衰老相关β-半乳糖苷酶阳性细胞比例,显示出良好的抗衰效果;细胞氧化应激模型中,香蒲新苷、蝶豆素、水仙苷及夏佛塔苷、芦丁能显著下调MMP-1、MMP-3和MMP-9的表达(P<0.001),促进皮肤胶原蛋白合成并抑制其降解,具有潜在的抗衰老能力。综上表明青刺尖的抗氧化功效可能是由夏佛塔苷、香蒲新苷、芦丁、水仙苷及碟豆素等多种化学成分共同作用产生的结果。 展开更多
关键词 青刺尖 抗氧化 谱-效关系 Pearson 相关性 偏最小二乘回归
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基于网络药理学和HPLC谱效关系的黄连改善2型糖尿病潜在质量标志物研究
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作者 万萧 保瑞 +2 位作者 毛海龙 王泽峰 闫鸿丽 《分析测试学报》 北大核心 2026年第2期390-397,共8页
该文系统开展了黄连改善2型糖尿病的潜在质量标志物筛选研究。通过整合网络药理学与高效液相色谱(HPLC)指纹图谱谱效关系分析方法,首先构建了“成分-靶点-疾病”网络,筛选出黄连碱、药根碱等6种核心活性成分,并建立10批次药材的HPLC指... 该文系统开展了黄连改善2型糖尿病的潜在质量标志物筛选研究。通过整合网络药理学与高效液相色谱(HPLC)指纹图谱谱效关系分析方法,首先构建了“成分-靶点-疾病”网络,筛选出黄连碱、药根碱等6种核心活性成分,并建立10批次药材的HPLC指纹图谱。结合α-葡萄糖苷酶抑制活性与抗氧化实验,采用灰色关联度及二元回归分析发现,小檗碱、黄柏酮、表小檗碱和黄连碱4种成分与降糖活性呈显著正相关。主成分分析及聚类分析显示不同批次药材存在明显的质量差异。该研究建立了“活性导向”的质量评价模式,突破传统“成分导向”的局限,明确了黄连治疗2型糖尿病的4种核心质量标志物。研究结果为黄连药材标准化生产、质量控制及临床精准用药提供了科学依据,对推动中药现代化和循证医学发展具有重要意义。 展开更多
关键词 黄连 2型糖尿病 网络药理学 指纹图谱 谱效关系 质量标志物
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Spectrum-effect relationship between components and antitumor activity of Lonicerae Japonicae Flos based on orthogonal partial least squares regression 被引量:1
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作者 Tianliang Liu Linlin Yang +3 位作者 Chengming Dong Daming Qi Baoyu Ji Qiguo Gao 《Science of Traditional Chinese Medicine》 2024年第2期138-147,共10页
Lonicerae Japonicae Flos is a significant food and traditional Chinese medicine,known as plant antibiotics.It has rich chemical constituents and significant pharmacological effects.The antitumor activity of Lonicerae ... Lonicerae Japonicae Flos is a significant food and traditional Chinese medicine,known as plant antibiotics.It has rich chemical constituents and significant pharmacological effects.The antitumor activity of Lonicerae Japonicae Flos has been clarified,but the study on its spectrum-effect relationship has not been reported.The compounds responsible for its antitumor activity are still unknown.In this study,processed products of Lonicerae Japonicae Flos at different temperatures were taken as experimental materials,and SMMC-7721,A549,andMGC80-3 cells were tested.The orthogonal partial least squares regressionmethod was used to analyze the common compounds in different processed products and the antitumor activity.The results show that processed products have a stronger inhibitory effect on A549 cells and MGC80-3 cells than SMMC-7721 cells.Compounds such as secologanic acid,isochlorogenic acid A,serotonin,and chlorogenic acid play an important role in their antitumor effects. 展开更多
关键词 Lonicerae Japonicae Flos Processed products Antitumor activity spectrum-effect relationship Orthogonal partial least squares regression
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群智通信对抗环境下的认知干扰频谱资源决策方法
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作者 戴进 童晓兵 +5 位作者 冯智斌 徐逸凡 孙玉洁 贺兴 战志远 许江 《兵工学报》 北大核心 2026年第1期385-395,共11页
现代化战争中,群智通信对抗已成为认知电子战的重要发展趋势。现有认知干扰手段主要聚焦于单目标对抗场景,随着敌方目标设备抗干扰能力的提升和规模的扩大,难以达到理想的干扰效果。然而多干扰机在协同过程中内部关系耦合复杂且往往存... 现代化战争中,群智通信对抗已成为认知电子战的重要发展趋势。现有认知干扰手段主要聚焦于单目标对抗场景,随着敌方目标设备抗干扰能力的提升和规模的扩大,难以达到理想的干扰效果。然而多干扰机在协同过程中内部关系耦合复杂且往往存在决策冲突,导致干扰频谱资源浪费、协作效率低下,无法满足干扰的时效性需求。针对此问题,提出群智通信对抗环境下的认知干扰频谱资源博弈决策架构及方法,在博弈论和机器学习理论方法的指导下,围绕协同干扰博弈决策模型与效果评估机理、面向瞬时均衡收益的干扰高效决策压制以及面向长期累积收益的干扰稳健决策占优等多个方面,对关键技术展开论述,通过构建“内部协同、外部对抗”博弈模型与间接效果评估机制,缓解反馈缺失问题,并结合合作式多智能体学习提升联合决策能力。新方法在压制能力、协同效率和策略稳定性上均优于现有方法。 展开更多
关键词 通信干扰 认知干扰 干扰效果评估 频谱决策 博弈学习
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基于指纹图谱与谱效关系的白头翁潜在抗氧化质量标志物(Q-Marker)分析 被引量:1
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作者 徐蓓蕾 张东琦 +8 位作者 杨娜娜 胡扬 刘晶晶 王昊 王金宏 李钧 杨雪晶 孙文斌 李文兰 《中草药》 北大核心 2025年第12期4427-4435,共9页
目的建立HPLC指纹图谱,区分白头翁Pulsatilla chinensis与其常见混伪品;建立正品白头翁HPLC指纹图谱和抗氧化活性间的谱效关系,辨识并验证白头翁潜在抗氧化质量标志物(quality markers,Q-Marker)。方法分别建立18批正品白头翁及其常见... 目的建立HPLC指纹图谱,区分白头翁Pulsatilla chinensis与其常见混伪品;建立正品白头翁HPLC指纹图谱和抗氧化活性间的谱效关系,辨识并验证白头翁潜在抗氧化质量标志物(quality markers,Q-Marker)。方法分别建立18批正品白头翁及其常见混伪品的HPLC指纹图谱,通过相似度计算区分正品及其混伪品;采用UPLC-QTOF-MS/MS技术表征正品白头翁化学成分;建立正品白头翁HPLC指纹图谱和清除1,1-二苯基-2-苦肼自由基(1,1-diphenyl-2-picrylhydrazyl,DPPH)间的谱效关系模型,筛选出潜在的抗氧化Q-Marker,测定含量;以脂多糖促RAW264.7细胞氧化应激损伤模型,评估潜在Q-Marker的生物效应。结果正品白头翁与其常见混伪品指纹图谱差异明显,相似度为0.667~0.321;18批正品白头翁的HPLC指纹图谱,相似度为0.994~0.959,共有峰21个;经质谱表征解析了正品白头翁中的21个化学成分;药效学实验表明各组正品白头翁均具有良好的抗氧化能力,谱效相关性分析结果显示17号和21号峰与抗氧化活性关系密切;经对照品比对确定17号和21号峰分别为白头翁皂苷B4和白头翁皂苷D,质量分数分别为15.99%~8.86%和2.55%~0.97%;抗氧化活性验证结果表明,白头翁皂苷B4和白头翁皂苷D显著降低脂多糖诱导的RAW264.7细胞NO和ROS水平(P<0.001),且二者配伍时不同程度的优于单一成分。结论所建立的HPLC指纹图谱方法能够准确鉴定正品白头翁药材,整合药效学实验,能够科学辨识白头翁Q-Marker用于白头翁的质量控制。建立了一套系统的评价白头翁质量的方法,为有效成分含量较低、难于质控的中药材的品质评价提供参考。 展开更多
关键词 白头翁 谱效关系 真伪鉴别 抗氧化 化学表征 白头翁皂苷B4 白头翁皂苷D
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工作姿势和负荷组合对上肢疲劳交互影响效应的幅频联合分析
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作者 薛恩凯 徐红旗 《中国组织工程研究》 北大核心 2026年第16期4115-4124,共10页
背景:上肢工作相关肌肉骨骼疾患因对个人健康和社会经济的危害而备受关注,而肌肉疲劳是主要诱因。目的:通过幅频联合分析法探讨姿势和负荷交互效应对静态上肢作业中肌肉疲劳特征的影响,为上肢工作相关肌肉骨骼疾患的预防提供多维度生物... 背景:上肢工作相关肌肉骨骼疾患因对个人健康和社会经济的危害而备受关注,而肌肉疲劳是主要诱因。目的:通过幅频联合分析法探讨姿势和负荷交互效应对静态上肢作业中肌肉疲劳特征的影响,为上肢工作相关肌肉骨骼疾患的预防提供多维度生物力学依据。方法:14名健康受试者执行肩关节前屈20°,40°,60°的静态任务,任务负荷设置为其最大重复次数(1RM)的10%,30%和50%。同步采集表面肌电信号及Borg主观疲劳感知评估量表数据。采用幅频联合分析计算均方根斜率和中位频率斜率量化肌肉疲劳程度;应用配对样本t检验分析疲劳前后的疲劳状态占比;采用方差分析评估姿势、负荷及其交互效应对疲劳状态占比的影响。结果与结论:①姿势-负荷组合会显著影响作业耐受性(P<0.05),60°50%最大重复次数组合最大保持时间最短(P<0.001);②特定组合下疲劳前后肌肉疲劳状态改变:20°10%最大重复次数组合下,冈上肌和斜方肌上部疲劳状态占比显著下降(P<0.05);40°10%最大重复次数组合下,斜方肌上部疲劳状态占比差异极显著(P<0.01);③姿势与负荷对肌肉疲劳的影响相互独立,在20°姿势下,三角肌前束的疲劳占比在10%最大重复次数与30%最大重复次数、10%最大重复次数与50%最大重复次数的负荷对比中有显著性差异(P<0.05);而在10%最大重复次数负荷条件下,三角肌前束及中束的疲劳占比仅在20°与60°角度间、在疲劳前与全程阶段表现出显著性差异(P<0.05);④姿势与负荷无显著交互效应(P>0.05);⑤提示高负荷与高角度显著加速肌肉疲劳;姿势与负荷独立影响疲劳进程,二者交互效应不显著;幅频联合分析对于姿势与负荷影响下的肌肉疲劳特征敏感性有限。 展开更多
关键词 肌肉骨骼疾患 上肢疲劳 工作姿势 外部负荷 交互影响 最大保持时间 幅频联合分析
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怀菊花干预动脉粥样硬化的药效物质基础研究
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作者 李孟 郭梦真 +5 位作者 王小兰 邓晓颜 刘淑棪 张靖柯 郑晓珂 冯卫生 《时珍国医国药》 北大核心 2025年第7期1383-1391,共9页
目的 研究怀菊花抗动脉粥样硬化的物质基础并预测其作用机制。方法 采用HPLC建立不同批次怀菊花的指纹图谱;以ox-LDL诱导HUVECs细胞损伤建立体外动脉粥样硬化模型;采用灰色关联度分析其谱-效相关性;同时采用网络药理学结合分子对接阐释... 目的 研究怀菊花抗动脉粥样硬化的物质基础并预测其作用机制。方法 采用HPLC建立不同批次怀菊花的指纹图谱;以ox-LDL诱导HUVECs细胞损伤建立体外动脉粥样硬化模型;采用灰色关联度分析其谱-效相关性;同时采用网络药理学结合分子对接阐释怀菊花干预AS的核心靶点及作用通路。结果 从指纹图谱中共确定20个共有峰,指认出9个色谱峰。各批次怀菊花提取物均可降低IL-1β、IL-6和TNF-α含量,灰色关联度分析显示峰号1、2、4、5、7、8、9、11、12、13、14、18、20与各药效学指标相关性较强。基于网络药理学对明确的6个成分的抗AS机制进行预测,共得到6个核心靶点,主要涉及蛋白多聚糖肿瘤通路、内分泌抵抗信号通路、TNF信号通路等。分子对接显示,活性成分与关键靶点结合较好。结论 怀菊花抗AS的药效物质可能是木犀草苷、异绿原酸A、芹菜素-7-O-β-D-葡萄糖苷、香叶木素-7-O-β-D-葡萄糖苷、木犀草素、金合欢素-7-O-β-D-吡喃葡萄糖苷,且可能通过TNF、PTGS2等靶点发挥抗AS作用,这为怀菊花效应成分抗AS的研究提供了参考依据。 展开更多
关键词 怀菊花 谱效关系 网络药理学 分子对接 动脉粥样硬化 药效物质
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补肾宁神膏的指纹图谱建立、含量测定及体外抗氧化作用的谱效关系研究
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作者 王丽 徐文华 +3 位作者 杨洋 辛灵怡 张蓁怡 杨光义 《中国药房》 北大核心 2025年第14期1749-1754,共6页
目的建立补肾宁神膏的指纹图谱,测定其指标成分的含量,并考察其体外抗氧化活性。方法建立10批补肾宁神膏的高效液相色谱(HPLC)指纹图谱,并进行相似度评价和共有峰指认;同法测定其中红景天苷等10个成分的含量;以2,2′-联氨(-3-乙基苯并... 目的建立补肾宁神膏的指纹图谱,测定其指标成分的含量,并考察其体外抗氧化活性。方法建立10批补肾宁神膏的高效液相色谱(HPLC)指纹图谱,并进行相似度评价和共有峰指认;同法测定其中红景天苷等10个成分的含量;以2,2′-联氨(-3-乙基苯并噻唑啉-6-磺酸)二氨盐(ABTS)和1,1-二苯基-2-三硝基苯肼(DPPH)自由基清除率以及铁离子还原能力(FRAP)为指标考察其抗氧化活性,采用SIMCA 14.1软件进行灰色关联度分析和偏最小二乘回归分析以建立谱效关系。结果10批补肾宁神膏共有24个共有峰,相似度均大于0.96;指认了11个共有峰,分别为腺苷(峰1)、红景天苷(峰4)、莫诺苷(峰6)、儿茶素(峰7)、芍药苷(峰10)、斯皮诺素(峰11)、阿魏酸(峰12)、异槲皮苷(峰13)、毛蕊花糖苷(峰14)、丹皮酚(峰23)及大黄素(峰24)。含量测定结果显示,红景天苷、莫诺苷、儿茶素、芍药苷、斯皮诺素、阿魏酸、异槲皮苷、毛蕊花糖苷、丹皮酚及大黄素的平均含量分别为0.725、1.962、0.214、3.395、0.124、0.107、0.286、0.019、0.034、0.067 mg/g。10批补肾宁神膏的平均综合指数为85.08%~96.35%。谱效关系分析结果显示,24个共有峰与其抗氧化能力均呈正相关,其中17个共有峰的变量重要性投影值>1,分别为峰2、5~7、9、10、13~21、23、24。结论本研究成功建立了补肾宁神膏的HPLC指纹图谱及含量测定方法;莫诺苷等17个共有峰代表的化合物可能是其发挥抗氧化作用的药效成分。 展开更多
关键词 补肾宁神膏 指纹图谱 谱效关系 抗氧化活性 含量测定
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分析化学教材中对称-四嗪和3,6-二甲基对称-四嗪吸收光谱的溶剂化效应实验
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作者 周慧 任列香 +2 位作者 王中慧 刘红云 晋卫军 《化学教育(中英文)》 北大核心 2025年第16期54-62,共9页
重新测量了对称-四嗪(1,2,4,5-tetrazine,Sym-Tz)和3,6-二甲基对称-四嗪(3,6-dimethyl-1,2,4,5-tetrazine,DM-sym-Tz)的紫外-可见(UV-Vis)电子吸收光谱。与气相比较,由于静电极化效应,在非极性环己烷溶剂中ππ*带和nπ*带均向红移。2... 重新测量了对称-四嗪(1,2,4,5-tetrazine,Sym-Tz)和3,6-二甲基对称-四嗪(3,6-dimethyl-1,2,4,5-tetrazine,DM-sym-Tz)的紫外-可见(UV-Vis)电子吸收光谱。与气相比较,由于静电极化效应,在非极性环己烷溶剂中ππ*带和nπ*带均向红移。2种化合物表现出典型的溶致变色行为,即随着溶剂极性的增加,ππ*带向红移,而nπ*带向蓝移,这是静电极化效应与更强的溶质-溶剂相互作用,如取向极化溶剂效应,甚至氢键作用平衡的结果。而且,nπ*光谱带与ππ*带各自具有完整吸收带而没有相互重叠。作为分析化学教材中溶剂效应的典型案例,从非极性环己烷到强极性水,可以同时展示溶剂极性对ππ*和nπ*2个吸收带的影响。通过计算化学,展示了nπ*带精细结构对应的振动模式。作为本科生甚至研究生光谱学实验教学内容,操作简单,伴随着明显的肉眼可见的颜色变化,从气相的淡紫红色,到环己烷中紫红色,水中红色,这更可能引起学生对溶剂效应的学习兴趣。 展开更多
关键词 紫外-可见吸收光谱 溶剂效应 1 2 4 5-四嗪 3 6-二甲基-1 2 4 5-四嗪
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