目的探讨硝苯地平控释片联合肉蔻五味丸治疗原发性高血压的临床疗效及机制。方法将收集的116例原发高血压患者随机分为对照组和观察组各58例,对照组给予低钠饮食、适当运动、减轻体重、口服硝苯地平控释片30 mg,1次/d,持续4周;观察组则...目的探讨硝苯地平控释片联合肉蔻五味丸治疗原发性高血压的临床疗效及机制。方法将收集的116例原发高血压患者随机分为对照组和观察组各58例,对照组给予低钠饮食、适当运动、减轻体重、口服硝苯地平控释片30 mg,1次/d,持续4周;观察组则在对照组基础之上给予肉蔻五味丸,每次10粒,3次/d,连续4周。记录两组治疗前后收缩压、舒张压的变化及血清高敏C反应蛋白、抵抗素水平的变化。计量资料组间比较采用t检验,组内比较采用配对t检验,计数资料采用χ2检验,P<0.05为差异有统计学意义。结果两组患者治疗前后收缩压[(156.01±20.92)、(132.55±16.34)、(159.42±22.50)、(119.61±10.42)mm Hg(1 mm Hg=0.133 k Pa)]、舒张压[(113.40±13.52)、(95.79±9.54)、(110.73±12.53)、(82.97±9.43)mm Hg]比较,差异均有统计学意义(均P<0.05);治疗后两组收缩压、舒张压比较,差异均有统计学意义(均P<0.05)。两组组患者治疗前后血清高敏C反应蛋白[(5.73±0.84)、(5.63±0.24)、(5.64±0.76)、(2.79±0.26)mg/L]与抵抗素水平[(6.27±2.44)、(5.82±2.18)、(6.67±2.21)、(3.46±2.66)ng/ml]比较,差异均有统计学意义(均P<0.05);治疗后两组患者血清高敏C反应蛋白与抵抗素水平比较,差异均有统计学意义(均P<0.05)。结论硝苯地平控释片联合肉蔻五味丸治疗原发性高血压的效果明显高于单独使用硝苯地平控释片;血清高敏C反应蛋白、抵抗素水平明显降低,减少血管炎症反应,进而减少动脉粥样硬化的发生,降低高血压。展开更多
In this paper, based on the equivalent single diode circuit model of the solar cell, an equivalent circuit diagram for two serial solar cells is drawn. Its equations of current and voltage are derived from Kirchhoff＇...In this paper, based on the equivalent single diode circuit model of the solar cell, an equivalent circuit diagram for two serial solar cells is drawn. Its equations of current and voltage are derived from Kirchhoff＇s current and voltage law. First, parameters are obtained from the I-V （current-voltage） curves for typical monocrystalline silicon solar cells （125 mmx 125 mm）. Then, by regarding photo-generated current, shunt resistance, serial resistance of the first solar cell, and resistance load as the variables. The properties of shunt currents （Ishl and Ish2）, diode currents （/D1 and/]：）2）, and load current （IL） for the whole two serial solar cells are numerically analyzed in these four cases for the first time, and the corresponding physical explanations are made. We find that these parameters have different influences on the internal currents of solar cells. Our results will provide a reference for developing higher efficiency solar cell module and contribute to the better understanding of the reason of efficiency loss of solar cell module.展开更多
文摘目的探讨硝苯地平控释片联合肉蔻五味丸治疗原发性高血压的临床疗效及机制。方法将收集的116例原发高血压患者随机分为对照组和观察组各58例,对照组给予低钠饮食、适当运动、减轻体重、口服硝苯地平控释片30 mg,1次/d,持续4周;观察组则在对照组基础之上给予肉蔻五味丸,每次10粒,3次/d,连续4周。记录两组治疗前后收缩压、舒张压的变化及血清高敏C反应蛋白、抵抗素水平的变化。计量资料组间比较采用t检验,组内比较采用配对t检验,计数资料采用χ2检验,P<0.05为差异有统计学意义。结果两组患者治疗前后收缩压[(156.01±20.92)、(132.55±16.34)、(159.42±22.50)、(119.61±10.42)mm Hg(1 mm Hg=0.133 k Pa)]、舒张压[(113.40±13.52)、(95.79±9.54)、(110.73±12.53)、(82.97±9.43)mm Hg]比较,差异均有统计学意义(均P<0.05);治疗后两组收缩压、舒张压比较,差异均有统计学意义(均P<0.05)。两组组患者治疗前后血清高敏C反应蛋白[(5.73±0.84)、(5.63±0.24)、(5.64±0.76)、(2.79±0.26)mg/L]与抵抗素水平[(6.27±2.44)、(5.82±2.18)、(6.67±2.21)、(3.46±2.66)ng/ml]比较,差异均有统计学意义(均P<0.05);治疗后两组患者血清高敏C反应蛋白与抵抗素水平比较,差异均有统计学意义(均P<0.05)。结论硝苯地平控释片联合肉蔻五味丸治疗原发性高血压的效果明显高于单独使用硝苯地平控释片;血清高敏C反应蛋白、抵抗素水平明显降低,减少血管炎症反应,进而减少动脉粥样硬化的发生,降低高血压。
基金Project supported by the National High Technology Research and Development Program of China (Grant No.2012AA050302)the National Natural Science Foundation of China (Grant Nos.61076059 and 51202301)the Science & Technology Research Project of Guangdong Province,China (Grant No.2011A032304001)
文摘In this paper, based on the equivalent single diode circuit model of the solar cell, an equivalent circuit diagram for two serial solar cells is drawn. Its equations of current and voltage are derived from Kirchhoff＇s current and voltage law. First, parameters are obtained from the I-V （current-voltage） curves for typical monocrystalline silicon solar cells （125 mmx 125 mm）. Then, by regarding photo-generated current, shunt resistance, serial resistance of the first solar cell, and resistance load as the variables. The properties of shunt currents （Ishl and Ish2）, diode currents （/D1 and/]：）2）, and load current （IL） for the whole two serial solar cells are numerically analyzed in these four cases for the first time, and the corresponding physical explanations are made. We find that these parameters have different influences on the internal currents of solar cells. Our results will provide a reference for developing higher efficiency solar cell module and contribute to the better understanding of the reason of efficiency loss of solar cell module.
