目的系统评价阿戈美拉汀治疗首发抑郁障碍患者的效果和安全性,以期为抑郁障碍的药物治疗提供参考。方法检索PubMed、Web of Science、中国学术期刊全文数据库(CNKI)、维普数据库(VIP)、万方数据库中关于阿戈美拉汀治疗首发抑郁障碍患者...目的系统评价阿戈美拉汀治疗首发抑郁障碍患者的效果和安全性,以期为抑郁障碍的药物治疗提供参考。方法检索PubMed、Web of Science、中国学术期刊全文数据库(CNKI)、维普数据库(VIP)、万方数据库中关于阿戈美拉汀治疗首发抑郁障碍患者的临床随机对照研究,提取阿戈美拉汀与SSRIs/SNRIs类抗抑郁药物在治疗首发抑郁障碍的效果和安全性的数据,采用RevMan 5.3进行Meta分析。结果共纳入12篇文章,其中中文10篇,英文2篇。Meta分析结果显示,治疗后阿戈美拉汀组与对照组HAMD-17评分差异有统计学意义(SMD=-1.31,95%CI:-1.55^-1.07,Z=10.77,P<0.01)。由于研究间异质性较大(I2=83%,P<0.01),根据对照组所采用抗抑郁药种类进行亚组分析,分别以氟西汀(SMD=-1.22,95%CI:-1.66^-0.77,Z=5.30,P<0.01)、度洛西汀(SMD=-0.88,95%CI:-1.26^-0.50,Z=4.49,P<0.01)为对照的研究治疗后HAMD-17评分与阿戈美拉汀组差异均有统计学意义。关于副作用的Meta分析显示,阿戈美拉汀组与对照组之间差异有统计学意义(RR=0.63,95%CI:0.49~0.80,Z=3.73,P<0.01)。结论阿戈美拉汀治疗首发抑郁障碍的疗效优于SSRIs/SNRIs类抗抑郁药物或与其疗效相当,副作用小于SSRIs/SNRIs类抗抑郁药物。展开更多
A generalized approach for narrowband interference (NBI) suppression in direct sequence spread spectrum (DSSS) communication systems using adaptive infinite impulse response (IIR) filter is presented. The excisi...A generalized approach for narrowband interference (NBI) suppression in direct sequence spread spectrum (DSSS) communication systems using adaptive infinite impulse response (IIR) filter is presented. The excision filter coefficients depend on both the jammer power and its instantaneous frequency. The dependency of the filter construction on the jammer power is significant as it allows optimal tradeoff between interference removal and signal distortion by maximizing the receiver signal to noise ratio improvement(SNRI). Instead of traditional adaptive line enhancer (ALE) estimator, a preferable NBI estimator-Fourier interpolation estimator (FIE) is proposed. Closed-form expressions of the SNR improvement and theoretical bit error rate (BER) based on the assumption that the output of the correlator is Gaussian distributed are both derived. Performance results obtained by numerical simulation are also presented and compared with theoretical results.展开更多
<b><span style="font-family:Verdana;">Background:</span></b><span style="font-family:""><span style="font-family:Verdana;"> It is not well analyze...<b><span style="font-family:Verdana;">Background:</span></b><span style="font-family:""><span style="font-family:Verdana;"> It is not well analyzed whether there are differences in plasma levels of tryptophan (TRP) metabolites between healthy control people (HC) and patients of major monopolar depression (MMD). </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:Verdana;"> Ultra high-speed </span></span><span style="font-family:""><span style="font-family:Verdana;">liquid chromatography/mass spectrometry has been used for the simultaneous determination of plasma levels of tryptophan metabolites in depressive </span><span><span style="font-family:Verdana;">patients. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> There are no significant differences between plasma levels of TRP between HC and MMD. Plasma levels of TRP of HC are higher in young men, young women, old men, and old women in this order. Serotonin (5-HT) levels are higher in MMD than HC. Plasma levels of 5-HIAA of HC are also higher than those of patients of MMD. Plasma levels of kynurenine (KYN) of healthy old men and old women are higher than those of young men and old women. Plasma levels of KYN are higher in old women and young men of MMD than those of HC. </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> Plasma levels of 5-HT are higher in patients of MMD than those of HC, which may suggest that use of drugs inhibiting the 5-HT transportation may increase plasma levels of 5-HT in MMD.展开更多
文摘目的系统评价阿戈美拉汀治疗首发抑郁障碍患者的效果和安全性,以期为抑郁障碍的药物治疗提供参考。方法检索PubMed、Web of Science、中国学术期刊全文数据库(CNKI)、维普数据库(VIP)、万方数据库中关于阿戈美拉汀治疗首发抑郁障碍患者的临床随机对照研究,提取阿戈美拉汀与SSRIs/SNRIs类抗抑郁药物在治疗首发抑郁障碍的效果和安全性的数据,采用RevMan 5.3进行Meta分析。结果共纳入12篇文章,其中中文10篇,英文2篇。Meta分析结果显示,治疗后阿戈美拉汀组与对照组HAMD-17评分差异有统计学意义(SMD=-1.31,95%CI:-1.55^-1.07,Z=10.77,P<0.01)。由于研究间异质性较大(I2=83%,P<0.01),根据对照组所采用抗抑郁药种类进行亚组分析,分别以氟西汀(SMD=-1.22,95%CI:-1.66^-0.77,Z=5.30,P<0.01)、度洛西汀(SMD=-0.88,95%CI:-1.26^-0.50,Z=4.49,P<0.01)为对照的研究治疗后HAMD-17评分与阿戈美拉汀组差异均有统计学意义。关于副作用的Meta分析显示,阿戈美拉汀组与对照组之间差异有统计学意义(RR=0.63,95%CI:0.49~0.80,Z=3.73,P<0.01)。结论阿戈美拉汀治疗首发抑郁障碍的疗效优于SSRIs/SNRIs类抗抑郁药物或与其疗效相当,副作用小于SSRIs/SNRIs类抗抑郁药物。
基金Sponsored by the Beijing Municipal Natural Science Foundation(4052024)
文摘A generalized approach for narrowband interference (NBI) suppression in direct sequence spread spectrum (DSSS) communication systems using adaptive infinite impulse response (IIR) filter is presented. The excision filter coefficients depend on both the jammer power and its instantaneous frequency. The dependency of the filter construction on the jammer power is significant as it allows optimal tradeoff between interference removal and signal distortion by maximizing the receiver signal to noise ratio improvement(SNRI). Instead of traditional adaptive line enhancer (ALE) estimator, a preferable NBI estimator-Fourier interpolation estimator (FIE) is proposed. Closed-form expressions of the SNR improvement and theoretical bit error rate (BER) based on the assumption that the output of the correlator is Gaussian distributed are both derived. Performance results obtained by numerical simulation are also presented and compared with theoretical results.
文摘<b><span style="font-family:Verdana;">Background:</span></b><span style="font-family:""><span style="font-family:Verdana;"> It is not well analyzed whether there are differences in plasma levels of tryptophan (TRP) metabolites between healthy control people (HC) and patients of major monopolar depression (MMD). </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:Verdana;"> Ultra high-speed </span></span><span style="font-family:""><span style="font-family:Verdana;">liquid chromatography/mass spectrometry has been used for the simultaneous determination of plasma levels of tryptophan metabolites in depressive </span><span><span style="font-family:Verdana;">patients. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> There are no significant differences between plasma levels of TRP between HC and MMD. Plasma levels of TRP of HC are higher in young men, young women, old men, and old women in this order. Serotonin (5-HT) levels are higher in MMD than HC. Plasma levels of 5-HIAA of HC are also higher than those of patients of MMD. Plasma levels of kynurenine (KYN) of healthy old men and old women are higher than those of young men and old women. Plasma levels of KYN are higher in old women and young men of MMD than those of HC. </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> Plasma levels of 5-HT are higher in patients of MMD than those of HC, which may suggest that use of drugs inhibiting the 5-HT transportation may increase plasma levels of 5-HT in MMD.