目的:观察潜阳活血汤内服联合针灸治疗老年高血压的疗效及对血压变异性(BPV)的影响。方法:将120例老年高血压(肾虚血瘀证)患者随机分为2组各60例。对照组给氯沙坦钾片及硝苯地平控释片口服。观察组在对照组的基础上采用针刺悬钟、涌泉...目的:观察潜阳活血汤内服联合针灸治疗老年高血压的疗效及对血压变异性(BPV)的影响。方法:将120例老年高血压(肾虚血瘀证)患者随机分为2组各60例。对照组给氯沙坦钾片及硝苯地平控释片口服。观察组在对照组的基础上采用针刺悬钟、涌泉、百会、三阴交等穴位,同时给予潜阳活血汤内服。疗程均为8周。血压治疗前后各测3次,取平均值计算。进行动态血压测量,记录24 h平均收缩压(24 h SBP)、24 h平均舒张压(24 h DBP)、白天平均收缩压(d SBP)、白天平均舒张压(d DBP)、夜间平均收缩压(n SBP)、夜间平均舒张压(n DBP)、24 h收缩压变异(24 h SSD)、24 h舒张压变异(24 h DSD)、白昼收缩压变异(d SSD)、白昼舒张压变异(d DSD)、夜间收缩压变异(n SSD)、夜间舒张压变异(n DSD)等指标。结果:组间比较经秩和检验,治疗后观察组患者临床疗效优于对照组,差异有统计学意义(P <0.05)。治疗后2组患者24 h SBP、24 h DBP、d SBP、d DBP、n SBP和n DBP均明显下降(P <0.01),治疗后观察组患者24 h SBP、24 h DBP、d SBP、d DBP、n SBP和n DBP水平均低于对照组(P <0.01)。治疗后2组患者24 h SSD、24 h DSD、d SSD、d DSD、n SSD和n DSD均较治疗前显著下降(P <0.01),治疗后观察组24 h SSD、24 h DSD、d SSD、d DSD、n SSD和n DSD水平均低于对照组(P <0.01)。结论:在西医常规治疗的基础上,采用针灸联合潜阳活血汤内服老年高血压患者,其降压效果,控制血压变异性方面均优于单纯西医治疗。展开更多
Atomically-precise clusterzymes have been widely studied for their special physicochemical properties,but it is still a challenge to enhance their peroxidase-like activity.Herein,we demonstrated that by substituting a...Atomically-precise clusterzymes have been widely studied for their special physicochemical properties,but it is still a challenge to enhance their peroxidase-like activity.Herein,we demonstrated that by substituting a single Ag atom into Au25 nanoclusters to form Au_(24)Ag_(1) nanoclusters,the peroxidase-like activity was enhanced greatly.In the presence of H_(2)O_(2),Au_(24)Ag_(1) could produce reactive oxygen species(ROS)to oxidize colorless 3,3'5,5'-tetramethylbenzidine(TMB)to the blue oxidized TMB(oxTMB).It is worth mentioning that pyrophosphate compounds inhibit the activity of Au_(24)Ag_(1).Since alkaline phosphatase(ALP)can dephosphorylate the substrate phosphate compound,that is,remove the phosphate group on the substrate by hydrolysis,the enzymatic activity of the clusterzyme is restored.Based on this,we have developed a sensitive and reliable colorimetric sensing system for the detection of pyrophosphate ion(PPi),adenosine triphosphate(ATP),adenosine diphosphate(ADP)and ALP,respectively.Importantly,the detection limit of the assay system is lower than those of most of the assays that have been reported.In addition,we also built a simple optical logic gate on this basis,further extending the application of metal nanoclusters as peroxidase mimics in bioanalysis.This work could help to shed light on the structure-activity relationship of nanozyme.展开更多
Metal nanoclusters with a core size smaller than 2 nm have attracted much attention because of their unique physical and chemical properties.Among the studied metal nanoclusters,gold and silver have been studied exten...Metal nanoclusters with a core size smaller than 2 nm have attracted much attention because of their unique physical and chemical properties.Among the studied metal nanoclusters,gold and silver have been studied extensively by size-controlled synthesis, structural characterization and properties investigations.Recently,considerable research effort has been devoted to the investiga- tion of copper nanoclusters.In this review,we highlight recent progress in the study of copper nanoclusters in terms of synthesis methods,characterization techniques and their novel optical and catalytic properties.展开更多
文摘目的:观察潜阳活血汤内服联合针灸治疗老年高血压的疗效及对血压变异性(BPV)的影响。方法:将120例老年高血压(肾虚血瘀证)患者随机分为2组各60例。对照组给氯沙坦钾片及硝苯地平控释片口服。观察组在对照组的基础上采用针刺悬钟、涌泉、百会、三阴交等穴位,同时给予潜阳活血汤内服。疗程均为8周。血压治疗前后各测3次,取平均值计算。进行动态血压测量,记录24 h平均收缩压(24 h SBP)、24 h平均舒张压(24 h DBP)、白天平均收缩压(d SBP)、白天平均舒张压(d DBP)、夜间平均收缩压(n SBP)、夜间平均舒张压(n DBP)、24 h收缩压变异(24 h SSD)、24 h舒张压变异(24 h DSD)、白昼收缩压变异(d SSD)、白昼舒张压变异(d DSD)、夜间收缩压变异(n SSD)、夜间舒张压变异(n DSD)等指标。结果:组间比较经秩和检验,治疗后观察组患者临床疗效优于对照组,差异有统计学意义(P <0.05)。治疗后2组患者24 h SBP、24 h DBP、d SBP、d DBP、n SBP和n DBP均明显下降(P <0.01),治疗后观察组患者24 h SBP、24 h DBP、d SBP、d DBP、n SBP和n DBP水平均低于对照组(P <0.01)。治疗后2组患者24 h SSD、24 h DSD、d SSD、d DSD、n SSD和n DSD均较治疗前显著下降(P <0.01),治疗后观察组24 h SSD、24 h DSD、d SSD、d DSD、n SSD和n DSD水平均低于对照组(P <0.01)。结论:在西医常规治疗的基础上,采用针灸联合潜阳活血汤内服老年高血压患者,其降压效果,控制血压变异性方面均优于单纯西医治疗。
基金supported by the National Natural Science Foundation of China(Nos.22172063 and 32202145)the Fund of Young Taishan Scholar Program,China(No.tsqn201812080)+1 种基金the Natural Science Foundation of Shandong Province,China(No.ZR2019YQ10)the Independent Cultivation Program of Innovation Team of Ji’nan City,China(No.2021GXRC052).
文摘Atomically-precise clusterzymes have been widely studied for their special physicochemical properties,but it is still a challenge to enhance their peroxidase-like activity.Herein,we demonstrated that by substituting a single Ag atom into Au25 nanoclusters to form Au_(24)Ag_(1) nanoclusters,the peroxidase-like activity was enhanced greatly.In the presence of H_(2)O_(2),Au_(24)Ag_(1) could produce reactive oxygen species(ROS)to oxidize colorless 3,3'5,5'-tetramethylbenzidine(TMB)to the blue oxidized TMB(oxTMB).It is worth mentioning that pyrophosphate compounds inhibit the activity of Au_(24)Ag_(1).Since alkaline phosphatase(ALP)can dephosphorylate the substrate phosphate compound,that is,remove the phosphate group on the substrate by hydrolysis,the enzymatic activity of the clusterzyme is restored.Based on this,we have developed a sensitive and reliable colorimetric sensing system for the detection of pyrophosphate ion(PPi),adenosine triphosphate(ATP),adenosine diphosphate(ADP)and ALP,respectively.Importantly,the detection limit of the assay system is lower than those of most of the assays that have been reported.In addition,we also built a simple optical logic gate on this basis,further extending the application of metal nanoclusters as peroxidase mimics in bioanalysis.This work could help to shed light on the structure-activity relationship of nanozyme.
基金supported by the National Natural Science Foundation of China(21043013)the Startup Funds for Scientific Research,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences
文摘Metal nanoclusters with a core size smaller than 2 nm have attracted much attention because of their unique physical and chemical properties.Among the studied metal nanoclusters,gold and silver have been studied extensively by size-controlled synthesis, structural characterization and properties investigations.Recently,considerable research effort has been devoted to the investiga- tion of copper nanoclusters.In this review,we highlight recent progress in the study of copper nanoclusters in terms of synthesis methods,characterization techniques and their novel optical and catalytic properties.
