Effects of berberine and barberry on anthropometric measures: A systematic review and meta-analysis of randomized controlled trials

ObjectiveDespite controversies, no study has systematically summarized findings from earlier studies on the effect of berberine and barberry on anthropometric measures. Therefore, the current systematic review and meta-analysis was conducted on the effect of berberine and barberry on body mass index (BMI), body weight (BW), waist circumference (WC) and waist-hip ratio (WHR) in adults.MethodsRelevant studies, published up to August 2019, were searched through PubMed/Medline, Scopus, ISI Web of Science, Embase and Google Scholar. All randomized clinical trials investigating the effect of berberine and barberry on the anthropometric measures including BMI, BW, WC or/and WHR were included.ResultsOut of 252 citations, 12 trials that enrolled 849 subjects were included. Berberine and barberry resulted in no significant change in BMI (Weighted mean differences (WMD): -0.16 kg/m²; 95 % CI: -0.43 to 0.11, P = 0.247), BW (WMD: −0.11 kg; 95 % CI: −0.13 to 0.91, P = 0.830), and berberine resulted in not significant in WC (WMD: −0.58 cm; 95 % CI: −1.89 to 0.72, P = 0.379) and significant reduction in WHR (WMD: -0.03; 95 % CI: −0.04 to -0.01, P < 0.0001).ConclusionWe found a significant reduction in WHR following berberine consumption in adults. Further clinical trials with high quality according to challenges mentioned seem to be helpful to use berberine and barberry as a supplement for certain health conditions, efficiently.     

多项血液指标对慢性阻塞性肺疾病长期死亡率的预测价值

目的探讨C反应蛋白(CRP)、中性粒细胞、嗜酸性粒细胞、中性粒细胞/淋巴细胞比值(NRL)、胆碱脂酶、白蛋白(Alb)和维生素D与慢性阻塞性肺疾病(COPD)患者长期死亡率的相关性。方法选取2015年1月-2017年1月广东省罗定市人民医院COPD患者120例,并对其开展为期24个月的随访,统计患者长期死亡率。根据结果将研究对象分为长期死亡组(17例)和存活组(89例)。比较2个组CRP、中性粒细胞、嗜酸性粒细胞、NRL、胆碱脂酶、Alb和25-羟基维生素D[25(OH)D](维生素D)水平。采用Logistic分析评价COPD患者各血液指标与长期死亡率的相关性。采用受试者工作特征(ROC)曲线分析各血液指标对COPD患者长期死亡率的预测价值。结果长期死亡组CRP、中性粒细胞、嗜酸性粒细胞水平及NRL均显著高于存活组(P<0.05),胆碱酯酶、25(OH)D、Alb水平显著低于存活组(P<0.05)。CRP、中性粒细胞、嗜酸性粒细胞、NRL、胆碱脂酶、25(OH)D和Alb均可作为预测COPD患者长期死亡率的独立危险因素,比值比分别为1.23、0.99、1.45、2.75、1.30、1.08、0.59(P<0.05)。CRP、中性粒细胞、嗜酸性粒细胞、NRL、胆碱脂酶、25(OH)D和Alb的敏感性与特异性比较差异均无统计学意义(P>0.05),NRL的曲线下面积(AUC)显著大于其他血液指标(P<0.05)。结论 CRP、中性粒细胞、嗜酸性粒细胞、NRL、胆碱脂酶、Alb和25(OH)D对COPD患者长期死亡率预测均有积极意义,其中NRL的预测价值较为显著。     

A general protocol for creating high-throughput screening assays for reaction yield and enantiomeric excess applied to hydrobenzoin

A general approach to high-throughput screening of enantiomeric excess (ee) and concentration was developed by using indicator displacement assays (IDAs), and the protocol was then applied to the vicinal diol hydrobenzoin. The method involves the sequential utilization of what we define herein as screening, training, and analysis plates. Several enantioselective boronic acid-based receptors were screened by using 96-well plates, both for their ability to discriminate the enantiomers of hydrobenzoin and to find their optimal pairing with indicators resulting in the largest optical responses. The best receptor/indicator combination was then used to train an artificial neural network to determine concentration and ee. To prove the practicality of the developed protocol, analysis plates were created containing true unknown samples of hydrobenzoin generated by established Sharpless asymmetric dihydroxylation reactions, and the best ligand was correctly identified.     

论文被引频次学科领域百分位在创建期刊百分位数指标中的应用

【目的】 探讨基于InCites数据库中论文被引频次百分位创建期刊百分位数指标的方法,比较不同百分位数指标的期刊评价效果。【方法】 以2018年版JCR中多学科交叉科学期刊及其2017—2018年发表的论文为研究对象,根据InCites数据库中论文被引频次学科领域百分位(Percentile in Subject Area,PSA)创建期刊百分位数指标(Journal Indicator of Percentage Rank,JIPR),包括JIPR4、JIPR6、JIPR8、JIPR10、JIPR100和平均PSA(aPSA),比较不同JIPR对多学科交叉科学期刊的评价效果。【结果】 68种期刊的JIPR4呈偏态分布,其他JIPR呈正态分布,多数指标之间呈高度相关,不同等级JIPR之间相关度更高;影响因子与aPSA排序位次变化较大的期刊多是发表综述文献较多、单篇高被引论文对影响因子贡献较大的期刊。【结论】 与影响因子相比,多数JIPR有明显优势,其中aPSA可能是最理想的期刊评价指标。     

Turning back from the brink: Detecting an impending regime shift in time to avert it

Ecological regime shifts are large, abrupt, long-lasting changes in ecosystems that often have considerable impacts on human economies and societies. Avoiding unintentional regime shifts is widely regarded as desirable, but prediction of ecological regime shifts is notoriously difficult. Recent research indicates that changes in ecological time series (e.g., increased variability and autocorrelation) could potentially serve as early warning indicators of impending shifts. A critical question, however, is whether such indicators provide sufficient warning to adapt management to avert regime shifts. We examine this question using a fisheries model, with regime shifts driven by angling (amenable to rapid reduction) or shoreline development (only gradual restoration is possible). The model represents key features of a broad class of ecological regime shifts. We find that if drivers can only be manipulated gradually management action is needed substantially before a regime shift to avert it; if drivers can be rapidly altered aversive action may be delayed until a shift is underway. Large increases in the indicators only occur once a regime shift is initiated, often too late for management to avert a shift. To improve usefulness in averting regime shifts, we suggest that research focus on defining critical indicator levels rather than detecting change in the indicators. Ideally, critical indicator levels should be related to switches in ecosystem attractors; we present a new spectral density ratio indicator to this end. Averting ecological regime shifts is also dependent on developing policy processes that enable society to respond more rapidly to information about impending regime shifts.     

供应室消毒指示带粘贴架的制作

随着供应室新规范的出台，每家医院都在取消无菌包的包扎绳，但无菌包的名称必须写在消毒指示带上。为了节省时间，每天必须预先将带有无菌包名称的消毒指示带写好，粘贴于架子上，便于操作时取用方便。为此，我科自行设计制作了消毒指示带粘贴架，通过使用效果良好，现介绍如下。     

生化指标及影像医学在茵陈蒿汤退黄作用中的参考价值

结合生化指标及影像医学,可以鉴别黄疸的原因和分类,从而提示在隐性黄疸和肝细胞性黄疸方面,茵陈蒿汤疗效显著,而在严重的梗阻性黄疸中,芮陈蒿汤退黄效果不佳.     

纳米铁粉对小鼠血糖和血脂的影响

[目的]探讨纳米铁粉对小鼠血糖、血脂的影响。[方法]分别以5g/kg剂量微米粒径铁粉(Micro-Fe)或纳米粒径铁粉(Nano-Fe)给小鼠1次经口灌胃,14d后处死;测定肝、肾脏器系数、血糖(Glu)、总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)的变化。[结果]Micro-Fe和Nano-Fe染毒小鼠肝脏系数明显高于对照组相(P﹤0.05)。与对照组相比,Nano-Fe染毒小鼠血清Glu明显降低(P﹤0.05);Micro-Fe组血清TG比control组有明显升高(P﹤0.05),Nano-Fe组血清TG比control组有升高趋势,但差异无统计学意义(P﹥0.05)。Control、Micro-Fe和Nano-Fe染毒组3组小鼠血清TC、LDL-C和HDL-C水平间差异无统计学意义(P﹥0.05)。[结论]大剂量Nano-Fe经口染毒可使血清Glu降低,对TC、TG、HDL-C和LDL-C无明显影响。