BACKGROUND Depression affects more than 350 million people worldwide.In China,4.2%(54 million people)of the total population suffers from depression.Psychotherapy has been shown to change cognition,improve personality...BACKGROUND Depression affects more than 350 million people worldwide.In China,4.2%(54 million people)of the total population suffers from depression.Psychotherapy has been shown to change cognition,improve personality,and enhance the ability to cope with difficulties and setbacks.While pharmacotherapy can reduce symptoms,it is also associated with adverse reactions and relapse after drug withdrawal.Therefore,there has been an increasing emphasis placed on the use of non-pharmacological therapies for depression.The hypothesis of this study was that acupuncture at ghost points combined with fluoxetine would be more effective than fluoxetine alone for the treatment of depression.AIM To investigate the efficacy of acupuncture at ghost points combined with fluoxetine for the treatment of patients with depression.METHODS This randomized controlled trial included patients with mild to moderate depression(n=160).Patients received either acupuncture at ghost points combined with fluoxetine(n=80)or fluoxetine alone(control group,n=80).Needles were retained in place for 30 min,5 times a week;three treatment cycles were administered.The Mann–Whitney U test was used to compare functional magnet resonance imaging parameters,Hamilton depression rating scale(HAMD)scores,and self-rating depression scale(SDS)scores between the acupuncture group and control group.RESULTS There were no significant differences in HAMD or SDS scores between the acupuncture group and control group,before or after 4 wk of treatment.The acupuncture group exhibited significantly lower HAMD and SDS scores than the control group after 8 wk of treatment(P<0.05).The acupuncture group had significantly lower fractional Amplitude of Low Frequency Fluctuations values for the left anterior wedge leaf,left posterior cingulate gyrus,left middle occipital gyrus,and left inferior occipital gyrus after 8 wk.The acupuncture group also had significantly higher values for the right inferior frontal gyrus,right insula,and right hippocampus(P<0.05).After 8 wk of treatment,the effective rates of the acupuncture and control groups were 51.25%and 36.25%,respectively(P<0.05).CONCLUSION The study results suggest that acupuncture at ghost points combined with fluoxetine is more effective than fluoxetine alone for the treatment of patients with mild to moderate depression.展开更多
Accurately approximating higher order derivatives is an inherently difficult problem. It is shown that a random variable shape parameter strategy can improve the accuracy of approximating higher order derivatives with...Accurately approximating higher order derivatives is an inherently difficult problem. It is shown that a random variable shape parameter strategy can improve the accuracy of approximating higher order derivatives with Radial Basis Function methods. The method is used to solve fourth order boundary value problems. The use and location of ghost points are examined in order to enforce the extra boundary conditions that are necessary to make a fourth-order problem well posed. The use of ghost points versus solving an overdetermined linear system via least squares is studied. For a general fourth-order boundary value problem, the recommended approach is to either use one of two novel sets of ghost centers introduced here or else to use a least squares approach. When using either ghost centers or least squares, the random variable shape parameter strategy results in significantly better accuracy than when a constant shape parameter is used.展开更多
目的观察加用针刺十三鬼穴治疗肝性脑病的临床疗效。方法将74例肝性脑病患者随机分为治疗组(38例)和对照组(36例)。对照组予门冬氨酸鸟氨酸10~15 g静滴,日1次,支链氨基酸250 m L静滴,日2次,治疗组在对照组治疗基础上加用针刺十三鬼穴,每...目的观察加用针刺十三鬼穴治疗肝性脑病的临床疗效。方法将74例肝性脑病患者随机分为治疗组(38例)和对照组(36例)。对照组予门冬氨酸鸟氨酸10~15 g静滴,日1次,支链氨基酸250 m L静滴,日2次,治疗组在对照组治疗基础上加用针刺十三鬼穴,每天2次,2组治疗方法疗程均为7 d,观察治疗前后患者肝功能、血氨、β-内啡肽的变化,评价临床疗效。结果治疗组临床疗效总有效率89.5%,明显高于对照组总有效率的69.4%,差异有统计学意义(P<0.05)。治疗组肝功能、血氨、β-内啡肽的下降程度显著优于对照组(P<0.05)。结论针刺十三鬼穴能够降低患者血氨水平,抑制β-内啡肽的合成和释放,减轻患者脑水肿,改善脑功能,促进患者神智恢复,可见在西药治疗的基础上加用针刺十三鬼穴,能够增强西药对肝性脑病的治疗效果。展开更多
针对重叠网格寻点问题,提出了一种直接在格心网格下操作,基于虚网格的ADT(Alternating Digital Tree)搜索方法.通过对计算网格进行扩展,建立虚边界网格,解决了格心网格因覆盖区域不完整而无法直接建立ADT数据结构的问题.搜索结果即为包...针对重叠网格寻点问题,提出了一种直接在格心网格下操作,基于虚网格的ADT(Alternating Digital Tree)搜索方法.通过对计算网格进行扩展,建立虚边界网格,解决了格心网格因覆盖区域不完整而无法直接建立ADT数据结构的问题.搜索结果即为包含解的格心单元集合,可直接对结果列表遍历以得到合理贡献单元,故完全摒弃了可靠性差的StencilWalk方法.由虚网格的定义,使寻点在边界附近的处理更为灵活,可以准确给出边界附近贡献单元的有效信息,同时简化了虚网格体系的构建.扩展了重叠边界类型,构建的搜索空间能完整覆盖网格范围,解决了对称面重叠问题.算例研究表明:该方法可靠性好,边界处理能力强,有效提高了重叠网格方法对大型复杂网格的解算能力.展开更多
基金Supported by Shanghai Science and Technology Commission TCM Guidance Project,No.19401935500Shanghai University of Traditional Chinese Medicine Budget Scientific Research Project,No.2020LK079Medical Innovation Research Special General Project of Shanghai Science and Technology Commission,No.21Y11923500.
文摘BACKGROUND Depression affects more than 350 million people worldwide.In China,4.2%(54 million people)of the total population suffers from depression.Psychotherapy has been shown to change cognition,improve personality,and enhance the ability to cope with difficulties and setbacks.While pharmacotherapy can reduce symptoms,it is also associated with adverse reactions and relapse after drug withdrawal.Therefore,there has been an increasing emphasis placed on the use of non-pharmacological therapies for depression.The hypothesis of this study was that acupuncture at ghost points combined with fluoxetine would be more effective than fluoxetine alone for the treatment of depression.AIM To investigate the efficacy of acupuncture at ghost points combined with fluoxetine for the treatment of patients with depression.METHODS This randomized controlled trial included patients with mild to moderate depression(n=160).Patients received either acupuncture at ghost points combined with fluoxetine(n=80)or fluoxetine alone(control group,n=80).Needles were retained in place for 30 min,5 times a week;three treatment cycles were administered.The Mann–Whitney U test was used to compare functional magnet resonance imaging parameters,Hamilton depression rating scale(HAMD)scores,and self-rating depression scale(SDS)scores between the acupuncture group and control group.RESULTS There were no significant differences in HAMD or SDS scores between the acupuncture group and control group,before or after 4 wk of treatment.The acupuncture group exhibited significantly lower HAMD and SDS scores than the control group after 8 wk of treatment(P<0.05).The acupuncture group had significantly lower fractional Amplitude of Low Frequency Fluctuations values for the left anterior wedge leaf,left posterior cingulate gyrus,left middle occipital gyrus,and left inferior occipital gyrus after 8 wk.The acupuncture group also had significantly higher values for the right inferior frontal gyrus,right insula,and right hippocampus(P<0.05).After 8 wk of treatment,the effective rates of the acupuncture and control groups were 51.25%and 36.25%,respectively(P<0.05).CONCLUSION The study results suggest that acupuncture at ghost points combined with fluoxetine is more effective than fluoxetine alone for the treatment of patients with mild to moderate depression.
文摘Accurately approximating higher order derivatives is an inherently difficult problem. It is shown that a random variable shape parameter strategy can improve the accuracy of approximating higher order derivatives with Radial Basis Function methods. The method is used to solve fourth order boundary value problems. The use and location of ghost points are examined in order to enforce the extra boundary conditions that are necessary to make a fourth-order problem well posed. The use of ghost points versus solving an overdetermined linear system via least squares is studied. For a general fourth-order boundary value problem, the recommended approach is to either use one of two novel sets of ghost centers introduced here or else to use a least squares approach. When using either ghost centers or least squares, the random variable shape parameter strategy results in significantly better accuracy than when a constant shape parameter is used.
文摘目的观察加用针刺十三鬼穴治疗肝性脑病的临床疗效。方法将74例肝性脑病患者随机分为治疗组(38例)和对照组(36例)。对照组予门冬氨酸鸟氨酸10~15 g静滴,日1次,支链氨基酸250 m L静滴,日2次,治疗组在对照组治疗基础上加用针刺十三鬼穴,每天2次,2组治疗方法疗程均为7 d,观察治疗前后患者肝功能、血氨、β-内啡肽的变化,评价临床疗效。结果治疗组临床疗效总有效率89.5%,明显高于对照组总有效率的69.4%,差异有统计学意义(P<0.05)。治疗组肝功能、血氨、β-内啡肽的下降程度显著优于对照组(P<0.05)。结论针刺十三鬼穴能够降低患者血氨水平,抑制β-内啡肽的合成和释放,减轻患者脑水肿,改善脑功能,促进患者神智恢复,可见在西药治疗的基础上加用针刺十三鬼穴,能够增强西药对肝性脑病的治疗效果。
文摘针对重叠网格寻点问题,提出了一种直接在格心网格下操作,基于虚网格的ADT(Alternating Digital Tree)搜索方法.通过对计算网格进行扩展,建立虚边界网格,解决了格心网格因覆盖区域不完整而无法直接建立ADT数据结构的问题.搜索结果即为包含解的格心单元集合,可直接对结果列表遍历以得到合理贡献单元,故完全摒弃了可靠性差的StencilWalk方法.由虚网格的定义,使寻点在边界附近的处理更为灵活,可以准确给出边界附近贡献单元的有效信息,同时简化了虚网格体系的构建.扩展了重叠边界类型,构建的搜索空间能完整覆盖网格范围,解决了对称面重叠问题.算例研究表明:该方法可靠性好,边界处理能力强,有效提高了重叠网格方法对大型复杂网格的解算能力.
