目的探讨强化降压与标准降压治疗老年高血压合并冠心病患者经皮冠状动脉介入术(PCI)术后的效果及安全性。方法86例老年高血压合并冠心病PCI患者以随机数字表法分为对照组和研究组,每组43例。对照组给予标准降压治疗[目标收缩压(SBP)<...目的探讨强化降压与标准降压治疗老年高血压合并冠心病患者经皮冠状动脉介入术(PCI)术后的效果及安全性。方法86例老年高血压合并冠心病PCI患者以随机数字表法分为对照组和研究组,每组43例。对照组给予标准降压治疗[目标收缩压(SBP)<135 mmHg],研究组给予强化降压治疗(目标SBP<120 mmHg),自治疗起始随访12个月观察效果。记录2组患者治疗前后的24 h SBP和舒张压(DBP)变异系数;采用超声心动图评价治疗前后心功能改变;采用欧洲五维健康评价量表(EQ-5D-3L)中的视觉模拟量表评价健康状况,采用患者健康问卷抑郁量表(PHQ-9)评价抑郁情绪,采用焦虑自评量表(SAS)评价焦虑情绪,采用国际版跌倒效能量表(FES-I)评价跌倒风险。结果2组患者治疗前24 h SBP及24 h DBP变异系数、左心室射血分数(LVEF)、左心室质量指数(LVMI)、左心房容积指数(LAVI)、EQ-5D-3L得分、PHQ-9得分、SAS得分、FES-I得分差异均无统计学意义(P>0.05);研究组治疗后的24 h SBP、24 h DBP变异系数、LAVI、PHQ-9得分、SAS得分及FES-I得分均低于对照组,LVEF、LVMI、EQ-5D-3L得分高于对照组(P<0.05);研究组、对照组治疗期间总不良反应发生率比较差异无统计学意义(P>0.05);研究组心脑血管新发事件总发生率低于对照组(P<0.05)。结论强化降压治疗在降低老年高血压合并冠心病患者PCI术后的24 h血压变异系数、改善心功能方面优于标准降压治疗,可提高患者生活质量,且安全性良好。展开更多
Hybridization of peptide nucleic acids probe containing azobenzene (NH2-TNT4, N-PNAs) with DNA was performed by covalently immobilizing of NH2-TNT4 in sequence on the 3-mercaptopropionic acid self-assembled monolayer ...Hybridization of peptide nucleic acids probe containing azobenzene (NH2-TNT4, N-PNAs) with DNA was performed by covalently immobilizing of NH2-TNT4 in sequence on the 3-mercaptopropionic acid self-assembled monolayer modified gold electrode with the helps of N-(3-dimethylaminopropy1)-N'-ethylcarbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS), and the hybrid was coded as N-PNAs/DNA. Using [Fe(CN)6]4-/3- (1:1) as the electrochemical indicator, the electrochemical properties of the N-PNAs self-assembled monolayer (N-PNAs-SAMs) and N-PNAs/DNA hybridization system under the conditions of before and after UV light irradiation were characterized with cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectra (EIS). Results showed that the redox currents decreased with the increase of irradiation time, suggesting that the ability of the charge transfer on the electrode surface was weakened and the conformation of hybrid system had been changed, and the control of PNAs/DNA hybridization could be realized by UV light irradiation.展开更多
Peptide nucleic acid containing azobenzene (N-PNA) was covalently bound on chip surfaces. Complementary DNA probes labeled by gold nanoparticles hybridizated with PNA on chip surfaces. The hybridization was successful...Peptide nucleic acid containing azobenzene (N-PNA) was covalently bound on chip surfaces. Complementary DNA probes labeled by gold nanoparticles hybridizated with PNA on chip surfaces. The hybridization was successfully detected with AFM by the microscopy mothed. The influences of the position and the cis-trans isomerization of azobenzene unit on hybridization were investigated with AFM.展开更多
We prepared the azobenzene PNA unit and synthesized various PNAs containing an azobenzene unit by a typical tBoc method. Both the azobenzene PNA unit and PNA containing an azobenzene unit (N-PNA) showed reversible pho...We prepared the azobenzene PNA unit and synthesized various PNAs containing an azobenzene unit by a typical tBoc method. Both the azobenzene PNA unit and PNA containing an azobenzene unit (N-PNA) showed reversible photoisomerization with UV and visible light irradiation. The hybridization of N-PNA with complementary DNA resulted in a considerable decrease of the photoisomerization rate constant of the azobenzene.展开更多
文摘目的探讨强化降压与标准降压治疗老年高血压合并冠心病患者经皮冠状动脉介入术(PCI)术后的效果及安全性。方法86例老年高血压合并冠心病PCI患者以随机数字表法分为对照组和研究组,每组43例。对照组给予标准降压治疗[目标收缩压(SBP)<135 mmHg],研究组给予强化降压治疗(目标SBP<120 mmHg),自治疗起始随访12个月观察效果。记录2组患者治疗前后的24 h SBP和舒张压(DBP)变异系数;采用超声心动图评价治疗前后心功能改变;采用欧洲五维健康评价量表(EQ-5D-3L)中的视觉模拟量表评价健康状况,采用患者健康问卷抑郁量表(PHQ-9)评价抑郁情绪,采用焦虑自评量表(SAS)评价焦虑情绪,采用国际版跌倒效能量表(FES-I)评价跌倒风险。结果2组患者治疗前24 h SBP及24 h DBP变异系数、左心室射血分数(LVEF)、左心室质量指数(LVMI)、左心房容积指数(LAVI)、EQ-5D-3L得分、PHQ-9得分、SAS得分、FES-I得分差异均无统计学意义(P>0.05);研究组治疗后的24 h SBP、24 h DBP变异系数、LAVI、PHQ-9得分、SAS得分及FES-I得分均低于对照组,LVEF、LVMI、EQ-5D-3L得分高于对照组(P<0.05);研究组、对照组治疗期间总不良反应发生率比较差异无统计学意义(P>0.05);研究组心脑血管新发事件总发生率低于对照组(P<0.05)。结论强化降压治疗在降低老年高血压合并冠心病患者PCI术后的24 h血压变异系数、改善心功能方面优于标准降压治疗,可提高患者生活质量,且安全性良好。
基金Supported by the National Natural Science Foundation of China (Grant No. 50572107)"Top Hundred Talents Program" of Chinese Academy of Sciences
文摘Hybridization of peptide nucleic acids probe containing azobenzene (NH2-TNT4, N-PNAs) with DNA was performed by covalently immobilizing of NH2-TNT4 in sequence on the 3-mercaptopropionic acid self-assembled monolayer modified gold electrode with the helps of N-(3-dimethylaminopropy1)-N'-ethylcarbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS), and the hybrid was coded as N-PNAs/DNA. Using [Fe(CN)6]4-/3- (1:1) as the electrochemical indicator, the electrochemical properties of the N-PNAs self-assembled monolayer (N-PNAs-SAMs) and N-PNAs/DNA hybridization system under the conditions of before and after UV light irradiation were characterized with cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectra (EIS). Results showed that the redox currents decreased with the increase of irradiation time, suggesting that the ability of the charge transfer on the electrode surface was weakened and the conformation of hybrid system had been changed, and the control of PNAs/DNA hybridization could be realized by UV light irradiation.
基金Supported by "973" Project of the Ministry of Science and Technology of China (Grant No. 2007CB607605)National Natural Science Foundation of China (Grant No. 20473106)
文摘Peptide nucleic acid containing azobenzene (N-PNA) was covalently bound on chip surfaces. Complementary DNA probes labeled by gold nanoparticles hybridizated with PNA on chip surfaces. The hybridization was successfully detected with AFM by the microscopy mothed. The influences of the position and the cis-trans isomerization of azobenzene unit on hybridization were investigated with AFM.
基金Supported by the Major State Basic Research Development Program of China (Grant No. 2007CB607605)National Natural Science Foundation of China (Grant No. 20473106)
文摘We prepared the azobenzene PNA unit and synthesized various PNAs containing an azobenzene unit by a typical tBoc method. Both the azobenzene PNA unit and PNA containing an azobenzene unit (N-PNA) showed reversible photoisomerization with UV and visible light irradiation. The hybridization of N-PNA with complementary DNA resulted in a considerable decrease of the photoisomerization rate constant of the azobenzene.
