目的:系统评价瑞格列奈对比格列美脲分别联合二甲双胍治疗2型糖尿病的有效性和安全性,为临床提供循证依据。方法:计算机检索中国期刊全文数据库、中文科技期刊数据库、万方数据库、Pub Med、Embase、Medline、Cochrane图书馆,收集瑞格...目的:系统评价瑞格列奈对比格列美脲分别联合二甲双胍治疗2型糖尿病的有效性和安全性,为临床提供循证依据。方法:计算机检索中国期刊全文数据库、中文科技期刊数据库、万方数据库、Pub Med、Embase、Medline、Cochrane图书馆,收集瑞格列奈联合二甲双胍(试验组)对比格列美脲联合二甲双胍(对照组)治疗2型糖尿病疗效[糖化血红蛋白(Hb A1c)、空腹血糖(FPG)、餐后2 h血糖(2 h PG)水平]和安全性(不良反应发生率、低血糖反应发生率、胃肠道反应发生率)的随机对照试验(RCT),对符合纳入标准的文献进行资料提取,并采用Cochrane系统评价手册5.1.0进行质量评价后,采用Rev Man 5.2统计软件进行Meta分析。结果:共纳入12项RCT,合计957例患者。Meta分析结果显示,试验组患者2 h PG降低程度显著低于对照组,差异有统计学意义[MD=-0.70,95%CI(-1.02,-0.38),P<0.001];两组患者Hb A1c降低水平[MD=0.00,95%CI(-0.24,0.25),P=0.98]、FPG降低水平[MD=0.10,95%CI(-0.17,0.36),P=0.47]、不良反应发生率[OR=0.54,95%CI(0.28,1.06),P=0.07]、低血糖反应发生率[OR=0.52,95%CI(0.13,2.06),P=0.35]和胃肠道反应发生率[OR=0.60,95%CI(0.15,2.41),P=0.47]比较,差异均无统计学意义。结论:瑞格列奈联合二甲双胍降低2 h PG效果优于格列美脲联合二甲双胍,安全性相当。展开更多
A new spectrophotometric method for the determination of trace heparin has been studied. The method was based on the discoloration reaction between heparin and bisphenylnaphthylmethane dyes such as victoria blue 4R(VB...A new spectrophotometric method for the determination of trace heparin has been studied. The method was based on the discoloration reaction between heparin and bisphenylnaphthylmethane dyes such as victoria blue 4R(VB4R), victoria blue B(VBB) and night blue(NB) in weak acid medium. The reduction in absorbance was directly proportional to the concentration of heparin. The linear ranges of heparin were from 0 to 2.4 μg/mL for all systems. The molar absorptivities( ε ) of the three systems were between 2.11×10 6 and 2.66×10 6 L·mol -1 ·cm -1 and the sensitivity of VB4R system was the highest. Taking VB4R system for an example, the effects of some coexisting substances on the determination of heparin have been investigated and the results showed that the method had a good selectivity. The method has been applied to determination of the heparin samples with satisfactory results.展开更多
文摘目的:系统评价瑞格列奈对比格列美脲分别联合二甲双胍治疗2型糖尿病的有效性和安全性,为临床提供循证依据。方法:计算机检索中国期刊全文数据库、中文科技期刊数据库、万方数据库、Pub Med、Embase、Medline、Cochrane图书馆,收集瑞格列奈联合二甲双胍(试验组)对比格列美脲联合二甲双胍(对照组)治疗2型糖尿病疗效[糖化血红蛋白(Hb A1c)、空腹血糖(FPG)、餐后2 h血糖(2 h PG)水平]和安全性(不良反应发生率、低血糖反应发生率、胃肠道反应发生率)的随机对照试验(RCT),对符合纳入标准的文献进行资料提取,并采用Cochrane系统评价手册5.1.0进行质量评价后,采用Rev Man 5.2统计软件进行Meta分析。结果:共纳入12项RCT,合计957例患者。Meta分析结果显示,试验组患者2 h PG降低程度显著低于对照组,差异有统计学意义[MD=-0.70,95%CI(-1.02,-0.38),P<0.001];两组患者Hb A1c降低水平[MD=0.00,95%CI(-0.24,0.25),P=0.98]、FPG降低水平[MD=0.10,95%CI(-0.17,0.36),P=0.47]、不良反应发生率[OR=0.54,95%CI(0.28,1.06),P=0.07]、低血糖反应发生率[OR=0.52,95%CI(0.13,2.06),P=0.35]和胃肠道反应发生率[OR=0.60,95%CI(0.15,2.41),P=0.47]比较,差异均无统计学意义。结论:瑞格列奈联合二甲双胍降低2 h PG效果优于格列美脲联合二甲双胍,安全性相当。
文摘A new spectrophotometric method for the determination of trace heparin has been studied. The method was based on the discoloration reaction between heparin and bisphenylnaphthylmethane dyes such as victoria blue 4R(VB4R), victoria blue B(VBB) and night blue(NB) in weak acid medium. The reduction in absorbance was directly proportional to the concentration of heparin. The linear ranges of heparin were from 0 to 2.4 μg/mL for all systems. The molar absorptivities( ε ) of the three systems were between 2.11×10 6 and 2.66×10 6 L·mol -1 ·cm -1 and the sensitivity of VB4R system was the highest. Taking VB4R system for an example, the effects of some coexisting substances on the determination of heparin have been investigated and the results showed that the method had a good selectivity. The method has been applied to determination of the heparin samples with satisfactory results.
