The impact of increased shading stress on agronomic traits,photosynthetic performance and antioxidants activities in leaves of two soybeans cultivars(D16 and E93)was studied.Soybean seedlings were grown in pots and ex...The impact of increased shading stress on agronomic traits,photosynthetic performance and antioxidants activities in leaves of two soybeans cultivars(D16 and E93)was studied.Soybean seedlings were grown in pots and exposed to no shade(S0),slight shade(S1),moderate shade(S2),and heavy shade(S3).Our findings showed that under the S3 in both cultivars,leaf fresh weight(LFW),specific leaf area(SLA)and leaf thickness decreased signifiantly,accompanied by a reduction in photochemical parameters including the maximum quantum yield(Fv/Fm)and electron transport rate(ETR).Furthermore,compared to SO,S1 significantly increased the ETR,sucrose content and the activity of catalase(CAT)in both D16 and E93 cultivars while S2 and S3 decreased the activity.However,under all treatments of shading stress,the antioxidant activities of superoxide dismutase(SOD)and peroxidase(POD)were lowered in both cultivars.Such morphological and physiological plasticity to adapt S1 compensates for the decrease in biomass and leads to seed weight compared to that obtained with an amount of normal light.Through configuring the space in the intercropping systems,S1 could be helpful for optimum growth and yield.Redesigning photosynthesis through S1 for the intercropping systems could be a smart approach.展开更多
目的基于Meta分析和网络药理学,综合评价胃复春联合常规化学药治疗消化性溃疡的疗效,并初步探讨其潜在作用机制。方法通过检索中国知网(CNKI)、万方(Wangfang)、维普(VIP)、中国生物医学文献数据库(CBM)、PubMed、Cochrane Library、Web...目的基于Meta分析和网络药理学,综合评价胃复春联合常规化学药治疗消化性溃疡的疗效,并初步探讨其潜在作用机制。方法通过检索中国知网(CNKI)、万方(Wangfang)、维普(VIP)、中国生物医学文献数据库(CBM)、PubMed、Cochrane Library、Web of Science等数据库,收集胃复春联合常规化学药治疗消化性溃疡的随机对照试验,根据纳入和排除标准对所有文献进行筛选,采用Stata16.0软件进行Meta分析;随后检索TCMSP数据库、BATMAN-TCM数据库,筛选胃复春的化学成分及其作用靶点,并与消化性溃疡疾病靶点映射对比后取得潜在作用靶点,利用生物信息学技术进行分析,初步探讨其作用机制。结果Meta分析共纳入文献14篇,1885例患者,结果显示,胃复春联用常规化学药治疗消化性溃疡能够提高幽门螺杆菌根除率以及临床疗效,并降低胃泌素水平。网络药理学共得到64种成分、65个共有靶点与160条相关通路,主要涉及核因子-κB(nuclear factorκB,NF-κB)信号通路、晚期糖基化终产物及其受体(advanced glycation end products-receptor for advanced glycation end products,AGE-RAGE)信号通路、肿瘤坏死因子(tumor necrosis factor,TNF)信号通路等。结论胃复春联用常规化学药治疗消化性溃疡可能是通过减轻幽门螺杆菌感染所导致的炎症反应来达到治疗目的。展开更多
目的应用质谱技术(sequential window acquisition of all theoretical mass spectra,SWATH)联合平行反应监测(parallel reaction monitoring,PRM)技术筛选早期鉴别2型糖尿病(type 2 diabetes,T2DM)罹患肺癌(lung cancer,LC)的特异生物...目的应用质谱技术(sequential window acquisition of all theoretical mass spectra,SWATH)联合平行反应监测(parallel reaction monitoring,PRM)技术筛选早期鉴别2型糖尿病(type 2 diabetes,T2DM)罹患肺癌(lung cancer,LC)的特异生物标志物。方法收集2019年6月-2020年1月就诊于南京医科大学附属无锡人民医院、既往确诊T2DM、且经病理学确诊为原发性早期LC的20例患者血清标本(T2DM+LC组),确诊T2DM并排除恶性肿瘤的20例患者血清标本(T2DM组)。2组随机各选取5份标本,采用数据非依赖采集(data independent acquisition,DIA)质谱技术分析血清蛋白质谱并分析两组间差异血清蛋白。采用PRM技术验证两组间的差异血清蛋白。通过logistic回归分析法探索鉴别T2DM患者罹患LC的最佳生物标志物组合。结果两组间共提取13个差异血清蛋白,其中9个蛋白上调,4个蛋白下调。对13个蛋白进行PRM建库分析,检测到7个候选蛋白,其中3个蛋白(PZP、IBP3、IGJ)含量两组间比较差异有统计学意义(P<0.05),具有潜在的诊断价值。3个候选蛋白联合鉴别T2DM患者罹患LC的线下面积(AUC)为0.860。结论SWATH/DIA联合PRM筛选特异性血清蛋白标志物PZP、IBP3、IGJ可用于T2DM患者罹患LC的早期诊断,三者联合应用诊断效能更强。展开更多
基金Funded by the National Key Research and Development Program of China(2018YFD1000905).
文摘The impact of increased shading stress on agronomic traits,photosynthetic performance and antioxidants activities in leaves of two soybeans cultivars(D16 and E93)was studied.Soybean seedlings were grown in pots and exposed to no shade(S0),slight shade(S1),moderate shade(S2),and heavy shade(S3).Our findings showed that under the S3 in both cultivars,leaf fresh weight(LFW),specific leaf area(SLA)and leaf thickness decreased signifiantly,accompanied by a reduction in photochemical parameters including the maximum quantum yield(Fv/Fm)and electron transport rate(ETR).Furthermore,compared to SO,S1 significantly increased the ETR,sucrose content and the activity of catalase(CAT)in both D16 and E93 cultivars while S2 and S3 decreased the activity.However,under all treatments of shading stress,the antioxidant activities of superoxide dismutase(SOD)and peroxidase(POD)were lowered in both cultivars.Such morphological and physiological plasticity to adapt S1 compensates for the decrease in biomass and leads to seed weight compared to that obtained with an amount of normal light.Through configuring the space in the intercropping systems,S1 could be helpful for optimum growth and yield.Redesigning photosynthesis through S1 for the intercropping systems could be a smart approach.
文摘目的基于Meta分析和网络药理学,综合评价胃复春联合常规化学药治疗消化性溃疡的疗效,并初步探讨其潜在作用机制。方法通过检索中国知网(CNKI)、万方(Wangfang)、维普(VIP)、中国生物医学文献数据库(CBM)、PubMed、Cochrane Library、Web of Science等数据库,收集胃复春联合常规化学药治疗消化性溃疡的随机对照试验,根据纳入和排除标准对所有文献进行筛选,采用Stata16.0软件进行Meta分析;随后检索TCMSP数据库、BATMAN-TCM数据库,筛选胃复春的化学成分及其作用靶点,并与消化性溃疡疾病靶点映射对比后取得潜在作用靶点,利用生物信息学技术进行分析,初步探讨其作用机制。结果Meta分析共纳入文献14篇,1885例患者,结果显示,胃复春联用常规化学药治疗消化性溃疡能够提高幽门螺杆菌根除率以及临床疗效,并降低胃泌素水平。网络药理学共得到64种成分、65个共有靶点与160条相关通路,主要涉及核因子-κB(nuclear factorκB,NF-κB)信号通路、晚期糖基化终产物及其受体(advanced glycation end products-receptor for advanced glycation end products,AGE-RAGE)信号通路、肿瘤坏死因子(tumor necrosis factor,TNF)信号通路等。结论胃复春联用常规化学药治疗消化性溃疡可能是通过减轻幽门螺杆菌感染所导致的炎症反应来达到治疗目的。
文摘目的应用质谱技术(sequential window acquisition of all theoretical mass spectra,SWATH)联合平行反应监测(parallel reaction monitoring,PRM)技术筛选早期鉴别2型糖尿病(type 2 diabetes,T2DM)罹患肺癌(lung cancer,LC)的特异生物标志物。方法收集2019年6月-2020年1月就诊于南京医科大学附属无锡人民医院、既往确诊T2DM、且经病理学确诊为原发性早期LC的20例患者血清标本(T2DM+LC组),确诊T2DM并排除恶性肿瘤的20例患者血清标本(T2DM组)。2组随机各选取5份标本,采用数据非依赖采集(data independent acquisition,DIA)质谱技术分析血清蛋白质谱并分析两组间差异血清蛋白。采用PRM技术验证两组间的差异血清蛋白。通过logistic回归分析法探索鉴别T2DM患者罹患LC的最佳生物标志物组合。结果两组间共提取13个差异血清蛋白,其中9个蛋白上调,4个蛋白下调。对13个蛋白进行PRM建库分析,检测到7个候选蛋白,其中3个蛋白(PZP、IBP3、IGJ)含量两组间比较差异有统计学意义(P<0.05),具有潜在的诊断价值。3个候选蛋白联合鉴别T2DM患者罹患LC的线下面积(AUC)为0.860。结论SWATH/DIA联合PRM筛选特异性血清蛋白标志物PZP、IBP3、IGJ可用于T2DM患者罹患LC的早期诊断,三者联合应用诊断效能更强。