当归芍药散改善认知功能的研究进展

当归芍药散（danggui shaoyao san，DSS）是收录在汉代张仲景《金匮要略》中的著名方剂，原为治疗“妇人怀妊，腹中㽲痛”、“妇人腹中诸疾痛”而设，为中医健脾祛湿、养血调肝的著名方剂。临床多用于妇科疾病的治疗。近年发现当归芍药散具有神经保护作用，尤其对认知功能具有一定改善作用，其作用机制主要与调控雌激素水平、抑制氧化应激以及神经元突触等转导通路及相关信号分子有关。当归芍药散作为潜在的阿尔茨海默病及其他中枢神经退行性疾病治疗药物将日益受到关注，该文对当归芍药散化学成分和药理作用的研究进展进行综述。     

Efficacy of Cordyceps sinensis as an adjunctive treatment in kidney transplant patients: A systematic-review and meta-analysis

ObjectivesCordyceps sinensis (cordyceps) is a fungus used in traditional Chinese medicine as adjuvant immunosuppressive agent in patients with kidney transplant. This review evaluates current evidence on the efficacy and safety of natural and fermented cordyceps preparations in patients with kidney transplant.MethodsEnglish and Chinese electronic databases including The Cochrane Central Register of Controlled Trials, EMBASE, MEDLINE, and CNKI (China National Knowledge Infrastructure) were searched up to December 2015 for relevant randomized controlled trials. Journals and conference proceedings were also searched. Two review authors independently selected trials for inclusion, extracted data, and assessed methodological quality. The primary outcome measures were incidence of acute graft rejection in the first year post-transplantation, one-year graft survival rate (defined as the percentage of patients with functioning grafts) and patient survival rate (or all-cause mortality).ResultsNine studies were eligible for inclusion. These studies were considered to be at moderate risk of bias due to poor reporting of methods. Four studies that compared cordyceps-based therapy with azathioprine-based therapy gave comparable acute rejection rates, and graft and patient survival. The cordyceps-treated group however showed better kidney function and lower incidences of hyperuricemia, hyperlipidemia, hyperglycemia and liver injury. Cordyceps used with different combinations of immunosuppressant therapy showed significant reduction in proteinuria after 6–12 months. Compared to the group receiving cyclosporine A monotherapy, treatment with a combination of cordyceps and cyclosporine A showed less treatment-induced nephrotoxicity. Adverse events were either not monitored or poorly documented in most trials.ConclusionsCurrent evidence shows that cordyceps as an adjuvant to routine immunosuppressant therapy may benefit kidney transplant patient, however, better quality evidence is still required.     

丹栀逍遥散治疗伴抑郁的溃疡性结肠炎疗效观察

为观察丹栀逍遥散对伴抑郁的溃疡性结肠炎（UC）的疗效，采用Zung抑郁自评量表进行测评，评分结果换算成抑郁严重度指数。从139例活动期UC患者中筛选出抑郁指数〉0．5者79例，随机分为治疗组40例，对照组39例，比较两组疗效。结果显示，治疗组与对照组的总有效率分别为85．0％和64．1％（P〈0．05）。结果表明，伴有抑郁的UC患者服用丹栀逍遥散可提高疗效。     

Detection of ischemic wall dysfunction: Comparison between M-mode echocardiography and sonomicrometry

The quantification of regional ventricular function by M-mode echocardiography was compared to that by sonomicrometry in 10 closed-chest, sedated swine during temporary occlusions of the left circumflex coronary artery. Wall thickening during systole (%WT) was calculated to quantitate regional myocardial function, and percentage of fractional shortening (%FS) was calculated from both sonomicrometer tracings and M-mode echocardiograms. Ventricular dimensions at end diastole and end systole were also compared before and after 2 minutes of coronary artery occlusion. Both techniques detected significant changes in wall thickness, %WT, and %FS after occlusion. Changes in %WT during coronary artery occlusion detected by M-mode echocardiography and sonomicrometry had a significant linear relationship (p < 0.05). Discrepancy between the two techniques in the measurement of wall thickness at end diastole was attributed to the difficulty in measuring relatively small distances with M-mode echocardiograms. However, we conclude that the clinical M-mode echocardiogram is capable of detecting acute regional wall dysfunction associated with ischemia.     

Spurious scintiphotographic recurrence of pulmonary emboli

Pulmonary perfusion scintiphotographs in patients with acute, extensive pulmonary embolism have disclosed instances in which Scintiphotographic changes thought to indicate embolic recurrence were not substantiated by clinical-angiographic observations. These spurious Scintiphotographic recurrences reflected changes in the regional distribution of pulmonary vascular resistance secondary to different rates of embolic resolution or distal migration of emboli. To document the influence of changes in vascular resistance upon perfusion scintiphotographs, studies were performed in animals subjected to various sequences of pulmonary arterial obstruction by balloon catheters. Scintiphotographic changes mimicking, but not representing, recurrence of embolism were produced. Observations in both animals and man indicate that the diagnosis of embolic recurrence based on Scintiphotographic changes alone should be made with caution, particularly in patients with multiple emboli and pulmonary hypertension.