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Geometric morphometrics: Current and future in China
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作者 Ming Bai 《动物分类学报:英文版》 CSCD 2017年第1期1-3,共3页
Although there were many ancient Chinese mathematicians contributed a lot on geometry,Geometric morphometrics(GM) in modern concept was not firstly proposed by Chinese.The super capability of geometric morphometrics i... Although there were many ancient Chinese mathematicians contributed a lot on geometry,Geometric morphometrics(GM) in modern concept was not firstly proposed by Chinese.The super capability of geometric morphometrics in scientific computing and problem solving has gained a lot of attentions in the world.Until early of 21 centuries,geometric morphometrics was introduced into China.Since then,GM was rapidly applied in many research fields.However,it is a pity that GM is still not well-known in China as many works are published out of China.Thus,the special issue 'Geometric morphometrics:Current shape and future directions' is organized.The present issue presents a series of contributions in this scientific field.In future,there will be many considerable new developing fields on GM needed to pay more attentions,for instances,3D geometric morphometrics,4D analysis,visualization of amber,new machine developing,new software developing,automatic identification system,etc.Once these technical bottle-necks on 3D data collecting and merging geometric morphometric data from multiple characters could be solved,the automatic identification system and other fields based on Big Data would come true. 展开更多
A catalogue of Burmite inclusions
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作者 Mingxia Guo Lida Xing +4 位作者 Bo Wang Weiwei Zhang Shuo Wang Aimin Shi Ming Bai 《动物分类学报:英文版》 CSCD 2017年第3期249-379,共131页
Burmite(Burmese amber) from the Hukawng Valley in northern Myanmar is a remarkable valuable and obviously the most important amber for studying terrestrial diversity in the mid-Cretaceous. The diversity of Burmite inc... Burmite(Burmese amber) from the Hukawng Valley in northern Myanmar is a remarkable valuable and obviously the most important amber for studying terrestrial diversity in the mid-Cretaceous. The diversity of Burmite inclusions is very high and many new taxa were found, including new order, new family/subfamily, and new genus. Till the end of 2016, 14 phyla, 21 classes, 65 orders, 279 families, 515 genera and 643 species of organisms are recorded, which are summized and complied in this catalogue. Among them, 587 species are arthropods. In addtion, the specimens which can not be identified into species are also listed in the paper. The information on type specimens, other materials, host and deposition of types are provided. 展开更多
关键词 缅甸 琥珀 目录 沉积类型 白垩纪中期 节肢动物 多样性 内含物
Electraesalopsis beuteli gen. & sp. nov., the first lucanid beetle from the Cretaceous Burmese amber(Coleoptera: Scarabaeoidea)
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作者 Tengfei Qiu Yuanyuan Lu +3 位作者 Weiwei Zhang Shuo Wang Yuxia Yang Ming Bai 《动物分类学报:英文版》 CSCD 2017年第3期390-394,共5页
Absract The first stag beetle found in Cretaceous Myanmar amber, Electraesalopsis beuteli Bai, Zhang & Qiu gen. & sp. nov., is described and illustrated on the basis of one well-preserved specimen. This specim... Absract The first stag beetle found in Cretaceous Myanmar amber, Electraesalopsis beuteli Bai, Zhang & Qiu gen. & sp. nov., is described and illustrated on the basis of one well-preserved specimen. This specimen provides more detailed morphological characters compared with compression fossils, e.g. the highly setose antennae and the punctured elytra. However, the systematic position of the new genus is still questionable and we provisionally place it as Lucanidae incertae sedis. In addition, the discovery of Electraesalopsis Bai, Zhang & Qiu gen. nov. also indicates that there is very high biodiversity in Burmese amber. The new discoveries in future studies on Burmese amber will provide more information and improve our knowledge of biogeography and early evolution of the Lucanidae. 展开更多
关键词 鞘翅目 白垩纪 琥珀 缅甸 金龟总科 甲虫 分类位置 形态学特征
A web based tool to merge geometric morphometric data from multiple characters
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作者 Ming Bai Jing Li +7 位作者 Wencheng Wang Rolf G. Beutel Benjamin Wipfle Wangang Liu ShaLi Mengna Zhang Yuanyuan Lu Xingke Yang 《动物分类学报:英文版》 CSCD 2017年第1期34-45,共12页
Geometric morphometrics(GM) is an important method of shape analysis and increasingly used in a wide range of scientific disciplines.Presently,a single character comparison system of geometric morphometric data is use... Geometric morphometrics(GM) is an important method of shape analysis and increasingly used in a wide range of scientific disciplines.Presently,a single character comparison system of geometric morphometric data is used in almost all empirical studies,and this approach is sufficient for many scientific problems.However,the estimation of overall similarity among taxa or objects based on multiple characters is crucial in a variety of contexts(e.g.(semi-)automated identification,phenetic relationships,tracing of character evolution,phylogenetic reconstruction).Here we propose a new web-based tool for merging several geometric morphometrics data files from multiple characters into a single data file.Using this approach information from multiple characters can be compared in combination and an overall similarity estimate can be obtained in a convenient and geometrically rigorous manner.To illustrate our method,we provide an example analysis of 25 dung beetle species with seven Procrustes superimposed landmark data files representing the morphological variation of body features:the epipharynx,right mandible,pronotum,elytra,hindwing,and the metendosternite in dorsal and lateral view.All seven files were merged into a single one containing information on 649 landmark locations.The possible applications of such merged data files in different fields of science are discussed. 展开更多
Geometric morphometric analysis of Eysarcoris guttiger, E. annamita and E. ventrafis (Hemiptera: Pentatomidae)
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作者 Rongrong Li Hufang Zhang +1 位作者 Shengcai Li Ming Bai 《动物分类学报:英文版》 CSCD 2017年第1期90-101,共12页
The genus Eysarcoris can be easily distinguished from other genera through the two spots in the basal angle of the scutellum.Nevertheless,Eysarcoris species show complex variances.Geometric morphometric methods have b... The genus Eysarcoris can be easily distinguished from other genera through the two spots in the basal angle of the scutellum.Nevertheless,Eysarcoris species show complex variances.Geometric morphometric methods have been increasingly applied to distinguish species and to define the boundary of genera among insects.In the present study,geometric morphometric approach was firstly employed to evaluate the shape variation of three characters(fore wing,hind wing and pygophore) of E.guttiger,E.annamita and E.ventralis using E.aeneus as outgroup to ascertain whether this approach is a reliable method for the taxonomy of Eysarcoris.Analysis was conducted on the landmarks of the three characters of these species.Multivariate regression of procrustes coordinates against centroid size was conducted to test the presence of allometry.Principal component analysis(PCA),canonical variate analysis(CVA) and cluster analysis were utilized to describe variations in shapes among the studied species.For all of the three characters,though PCA analysis showed some overlap among species,p-values for procrustes distance and mahalanobis distance were all less than 0.0001.The distribution of the three studied species corresponds with their species status.This study demonstrates that the geometric morphometrics of both the fore wing and the hind wing might represent a possible tool for the identification of species within this genus. 展开更多
Combined thrombectomy and intracoronary administration of glycoprotein IIb/IIIa inhibitors improves myocardial reperfusion in patients undergoing primary percutaneous coronary intervention: a meta-analysis 预览
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作者 Xiao-Wei NIU Jing-Jing ZHANG +2 位作者 Ming BAI Yu PENG Zheng ZHANG 《老年心脏病学杂志:英文版》 SCIE CAS CSCD 2017年第10期614-623,共10页
BackgroundSuboptimal 心肌的灌注在有圣片断举起的病人是普通的经历主要经皮的冠的干预(PPCI ) 的心肌的梗塞(STEMI ) 。而且,它导致增加的梗塞尺寸和死亡率。我们执行了元分析评估渴望 thrombectomy 的角色(在)在心肌的灌注和临床的 ... BackgroundSuboptimal 心肌的灌注在有圣片断举起的病人是普通的经历主要经皮的冠的干预(PPCI ) 的心肌的梗塞(STEMI ) 。而且,它导致增加的梗塞尺寸和死亡率。我们执行了元分析评估渴望 thrombectomy 的角色(在)在心肌的灌注和临床的 outcomes.MethodsPubMed 的改进与 glycoprotein IIb/IIIa 禁止者( GPI )的 intracoronary 管理结合了, Embase ,科学的网,并且中央数据库被寻找因为调查的使随机化的控制试用( RCT )联合了在并且 intracoronary GPI 治疗对在独自一个。利息的结果是在心肌的梗塞的 thrombolysis 心肌的灌注等级( TMPG ),梗塞尺寸()由心脏的磁性的回声成像估计了,左室的喷射部分( LVEF ),主要不利心脏的事件(向)在短期( 1 个月)并且长期( 6-12 月)后续,并且在包含 923 个病人的医院 stay.ResultsEight 试用期间为复杂并发症放血被包括。与相比在独自一个,联合了在, intracoronary GPI 显著地增加了 TMPG 3 流动(RR:1.15, 95% CI:1.04 ~ 1.26 ) ,减少[吝啬的差别(MD ) :-3.46,95% CI:-5.18 到 -1.73], 和改进 LVEF (MD:1.44, 95% CI:0.54 ~ 2.33 ) 。而且, GPI 使用减少了在长期的后续的向的风险(RR:0.60, 95% CI:0.37 ~ 0.98 ) 。在未成年者的发生的二个组之间没有重要差别,主要流血 complications.ConclusionsOur 调查结果显示出那与相比在独自一个,联合了在, intracoronary GPI 治疗导致了改进心肌的灌注,更好心脏的功能,并且没有向的幸存与经历 PPCI 的 STEMI 为病人在长期的后续受益。 展开更多
关键词 Glycoprotein IIb/IIIa 禁止者 元分析 心肌的灌注 THROMBECTOMY 经皮的冠的干预
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胃癌患者血清miR-26a/b的表达水平及诊断价值 预览 被引量:1
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作者 司怡然 张海洋 +5 位作者 王艺 邓婷 白明 宁涛 张乐 巴一 《中国肿瘤临床》 CSCD 北大核心 2017年第24期1242-1247,共6页
目的:探讨胃癌患者血清mi R-26a/b诊断胃癌的价值及其与临床病理特征的关系。方法:采用q RT-PCR法检测121例胃癌患者和116例正常人(对照组)血清mi R-26a/b的表达量,分析mi R-26a/b与胃癌临床病理特征的关系,构建受试者工作特征曲线... 目的:探讨胃癌患者血清mi R-26a/b诊断胃癌的价值及其与临床病理特征的关系。方法:采用q RT-PCR法检测121例胃癌患者和116例正常人(对照组)血清mi R-26a/b的表达量,分析mi R-26a/b与胃癌临床病理特征的关系,构建受试者工作特征曲线(ROC),分析mi R-26a/b诊断胃癌的价值。结果:胃癌患者血清mi R-26a和mi R-26b相对表达水平均低于对照组(1.60±1.02 vs.5.35±0.44;1.44±0.71 vs.5.35±0.71;P〈0.05),mi R-26a/b的表达水平与患者TNM分期相关,且mi R-26a的相对含量还与浸润深度、有无淋巴结转移相关(P〈0.05)、性别、分化程度、组织学类型等其他临床病理特征无显著相关(P〉0.05);mi R-26a的ROC曲线下面积为0.828(95%CI:0.776~0.881),灵敏度为73.3%,特异度为81.0%;mi R-26b的ROC曲线下面积为0.853(95%CI:0.801~0.906),灵敏度为68.1%,特异度为99.2%。结论:mi R-26a/b在胃癌患者血清中表达显著降低,并且其表达水平与胃癌的临床分期、浸润深度及有无淋巴结转移相关,有着较高的诊断价值。 展开更多
关键词 胃癌 血清miR-26a/b 临床病理特征 诊断价值
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New synonymies and records of the stag-beetle genus Aegus Mac Leay from Chinese fauna(Coleoptera:Lucanidae)
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作者 Yuyan Cao Michael D. Webb +1 位作者 Ming Bai Xia Wan 《动物分类学报:英文版》 CSCD 2016年第3期261-272,共12页
Four new synonyms in the stag-beetle genus Aegus Mac Leay from Chinese fauna are proposed and discussed based on their type specimens:A.pichoni Didier 1931,syn.nov.= A.laevicollis Saunders 1854;A.beauchenei Boileau 19... Four new synonyms in the stag-beetle genus Aegus Mac Leay from Chinese fauna are proposed and discussed based on their type specimens:A.pichoni Didier 1931,syn.nov.= A.laevicollis Saunders 1854;A.beauchenei Boileau 1902,syn.nov.and A.caprinus Didier,1928,syn.nov.=A.taurus Boileau,1899;A.dispar Dider 1931,syn.nov.=A.kuangtungensis Nagel,1925.A species checklist with fifteen species of this genus from China is given,including two new record species,A.labilis Westwood,1864 from Xizang and A.coomani Didier,1926 from Guangxi. 展开更多
关键词 新异名 中国 动物 鞘翅目 SYN 新记录种 金牛座 标本
A new species of ice crawlers from Burmese amber(Insecta:Grylloblattodea)
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作者 Weiwei Zhang Mingxia Guo +1 位作者 Xingke Yang Ming Bai 《动物分类学报:英文版》 CSCD 2016年第3期327-331,共5页
Modern grylloblattids are one of the least diverse insect orders.The single extant family is contrasted with 46 families described from the fossil records,which extend to the Late Carboniferous.The most ancient gryllo... Modern grylloblattids are one of the least diverse insect orders.The single extant family is contrasted with 46 families described from the fossil records,which extend to the Late Carboniferous.The most ancient grylloblattid nymphs are known from the Lower Permian.Till now,there is no report on grylloblattid from Burmese amber,which is a very old amber locality.Herein,we describe Sylvalitoralis cheni Zhang,Bai & Yang,sp.nov.from Grylloblattina based on a nymph specimen from the mid-Cretaceous Myanmar(Burmese) amber. 展开更多
关键词 琥珀标本 昆虫纲 缅甸 白垩纪中期 化石记录 晚石炭世 二叠系
维持治疗在晚期结直肠癌化疗后达稳定患者中的价值及预后分析 预览 被引量:11
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作者 陈幸运 周礼鲲 +5 位作者 王霞 白明 刘锐 李鸿立 巴一 黄鼎智 《中国肿瘤临床》 CAS CSCD 北大核心 2016年第2期76-80,共5页
目的:探讨晚期结直肠癌姑息化疗后获得疾病稳定患者的预后异质性及个体化治疗策略的应用。方法:研究收集2008年4月至2014年10月204例在天津医科大学肿瘤医院接受标准一线和(或)二线化疗后获得疾病稳定的晚期结直肠癌患者,分析该人... 目的:探讨晚期结直肠癌姑息化疗后获得疾病稳定患者的预后异质性及个体化治疗策略的应用。方法:研究收集2008年4月至2014年10月204例在天津医科大学肿瘤医院接受标准一线和(或)二线化疗后获得疾病稳定的晚期结直肠癌患者,分析该人群临床病理特征,筛选预后异质性分层因子,并评估姑息化疗后治疗手段(即单纯观察或维持治疗)对于特殊人群的影响。结果:单因素生存分析表明化疗线数、基线CA724、CEA 、CA19-9水平、血小板淋巴细胞比率(PLR)、姑息化疗后治疗手段为预后影响因素。多因素Cox 比例风险回归模型分析显示,一线化疗、基线CA19-9低水平、PLR 低水平、姑息化疗后维持治疗患者预后较好。亚组分析显示PLR 高水平患者中,维持治疗组与观察组无进展生存期分别为13.43个月和10.63个月(P = 0.003)。结论:基线CA19-9、PLR水平及姑息化疗后治疗手段为获得疾病稳定的晚期结直肠癌患者的独立预后因子。疾病稳定人群尤其是PLR 高水平者宜接受维持治疗。 展开更多
关键词 晚期结直肠癌 疾病稳定 生存 预后
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Change of SPARC expression after chemotherapy in gastric cancer 预览
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作者 Yong-Yin Gao Ru-Bing Han +9 位作者 Xia Wang Shao-Hua Ge Hong-Li Li Ting Deng Rui Liu Ming Bai Li-Kun Zhou Xin-Yuan Zhang Yi Ba Ding-Zhi Huang 《癌症生物学与医学:英文版》 CAS CSCD 2015年第1期33-40,共8页
Objective:The expression of tumor biomarkers may change after chemotherapy. However, whether secreted protein acidic and rich in cysteine(SPARC) expression changes after chemotherapy in gastric cancer(GC) is unclear. ... Objective:The expression of tumor biomarkers may change after chemotherapy. However, whether secreted protein acidic and rich in cysteine(SPARC) expression changes after chemotherapy in gastric cancer(GC) is unclear. This study investigated the influence of chemotherapy on SPARC expression in GC.Methods: Immunohistochemistry was used to analyze SPARC expression in 132 GC cases(including 54 cases with preoperative chemotherapy and 78 cases without preoperative chemotherapy). SPARC expression of postoperative specimens with and without preoperative chemotherapy was assessed to analyze the influence of chemotherapy on SPARC expression.Results: SPARC was highly expressed in GC compared with the desmoplastic stroma surrounding tumor cells and noncancerous tissues. High SPARC expression was correlated with invasion depth, lymph node, and TNM stage. After chemotherapy, a lower proportion of high SPARC expression was observed in patients with preoperative chemotherapy than in the controls. For 54 patients with preoperative chemotherapy, gross type, histology, depth of invasion, lymph node, TNM stage, and SPARC expression were related to overall survival. Further multivariate analysis showed that lymph node, histology, and SPARC expression after chemotherapy were independent prognostic factors.Conclusion: SPARC expression may change after chemotherapy in GC. SPARC expression should be reassessed for patients with GC after chemotherapy. 展开更多
关键词 SPARC 化疗 胃癌 结缔组织 肿瘤标志物 多变量分析 淋巴结 发生变化
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Nonselective beta-blockers in cirrhotic patients with no or small varices:A meta-analysis 预览
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作者 Xing-ShunQi Yong-XinBao +3 位作者 MingBai Wen-DaXu Jun-NaDai Xiao-ZhongGuo 《世界胃肠病学杂志:英文版》 SCIE CAS 2015年第10期3100-3108,共9页
AIM:To explore effects of nonselective beta-blockers(NSBBs) in cirrhotic patients with no or small varices.METHODS:The Pub Med,EMBASE,Science Direct,and Cochrane library databases were searched for relevant papers.A m... AIM:To explore effects of nonselective beta-blockers(NSBBs) in cirrhotic patients with no or small varices.METHODS:The Pub Med,EMBASE,Science Direct,and Cochrane library databases were searched for relevant papers.A meta-analysis was performed using ORs with 95%CI as the effect sizes.Subgroup analysis was conducted according to the studies including patients without varices and those with small varices.RESULTS:Overall,784 papers were initially retrieved from the database searches,of which six randomized controlled trials were included in the meta-analysis.The incidences of large varices development(OR = 1.05,95%CI:0.25-4.36;P = 0.95),first upper gastrointestinal bleeding(OR = 0.59,95%CI:0.24-1.47;P = 0.26),and death(OR = 0.70,95%CI:0.45-1.10;P = 0.12) were similar between NSBB and placebo groups.However,the incidence of adverse events was significantly higher in the NSBB group compared with the placebo group(OR = 3.47,95%CI:1.45-8.33;P = 0.005).The results of subgroup analyses were similar to those of overall analyses.CONCLUSION:The results of this meta-analysis indicate that NSBBs should not be recommended for cirrhotic patients with no or small varices. 展开更多
关键词 BETA-BLOCKER Liver CIRRHOSIS PORTAL hyper-tension
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巴基斯坦北部蜣螂亚科分类及一个巴基斯坦新纪录(鞘翅目:金龟甲科:金龟甲亚科)
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作者 Muhammad ABBAS 白明 杨星科 《昆虫分类学报》 CSCD 2015年第4期257-267,共11页
巴基斯坦北部地区,包括3个省级地区:开伯尔-普什图省Khyber Pakhtunkhwa、吉尔吉特-巴尔蒂斯坦特区Gilgit-Baltistan(曾被称为巴基斯坦北部特区the Northern Areas of Pakistan)、联邦直辖部落地区Federally Administered Tribal Ar... 巴基斯坦北部地区,包括3个省级地区:开伯尔-普什图省Khyber Pakhtunkhwa、吉尔吉特-巴尔蒂斯坦特区Gilgit-Baltistan(曾被称为巴基斯坦北部特区the Northern Areas of Pakistan)、联邦直辖部落地区Federally Administered Tribal Areas)。这里生境类型多样,动植物种类丰富。由于种种原因,该地区的标本难以获取,其动物区系的研究也近乎停滞。本文通过较为详尽的调查,基于来自国际上多家博物馆的模式标本和定名标本,对巴基斯坦北部地区蜣螂亚科进行了系统研究,共发现了3属5种蜣螂(Digitonthophagus gazelle,Digitonthophagus bonasus,Heliocopris midas,Heliocopris bucephalus and Gymnopleurus flagellates),编制了该地区蜣螂亚科的分类检索表,发现了1个巴基斯坦新纪录蜣螂(Heliocopris bucephalus)。本研究对于认知和了解巴基斯坦的动物区系具有一定意义。 展开更多
关键词 金龟甲总科 蜣螂 分类
Selection of a TIPS stent for management of portal hypertension in liver cirrhosis: An evidence-based review 预览 被引量:1
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作者 Xing-Shun Qi Ming Bai +1 位作者 Zhi-Ping Yang Dai-Ming Fan 《世界胃肠病学杂志:英文版(电子版)》 SCIE CAS 2014年第21期6470-6480,共11页
Nowadays,transjugular intrahepatic portosystemic shunt(TIPS)has become a mainstay treatment option for the management of portal hypertension-related complications in liver cirrhosis.Accumulated evidence has shown that... Nowadays,transjugular intrahepatic portosystemic shunt(TIPS)has become a mainstay treatment option for the management of portal hypertension-related complications in liver cirrhosis.Accumulated evidence has shown that its indications are being gradually expanded.Notwithstanding,less attention has been paid for the selection of an appropriate stent during a TIPS procedure.Herein,we attempt to review the current evidence regarding the diameter,type,brand,and position of TIPS stents.Several following recommendations may be considered in the clinical practice:(1)a 10-mm stent may be more effective than an 8-mm stent for the management of portal hypertension,and may be superior to a 12-mm stent for the improvement of survival and shunt patency;(2)covered stents are superior to bare stents for reducing the development of shunt dysfunction;(3)if available,Viatorr stent-grafts may be recommended due to a higher rate of shunt patency;and(4)the placement of a TIPS stent in the left portal vein branch may be more reasonable for decreasingthe development of hepatic encephalopathy.However,given relatively low quality of evidence,prospective well-designed studies should be warranted to further confirm these recommendations. 展开更多
关键词 Transjugular INTRAHEPATIC portosystemic SHUNT PORT
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EVS vs TIPS shunt for gastric variceal bleeding in patients with cirrhosis:A meta-analysis 预览
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作者 Ming Bai Xing-Shun Qi +3 位作者 Zhi-Ping Yang Kai-Chun Wu Dai-Ming Fan Guo-Hong Han 《世界胃肠药理与治疗学杂志:英文版(电子版)》 2014年第2期97-104,共8页
AIM: To evaluate the clinical effects of transjugular intrahepatic portosystemic shunt (TIPS) vs endoscopic variceal sclerotherapy (EVS) in the management of gastric variceal (GV) bleeding in terms of variceal reblee... AIM: To evaluate the clinical effects of transjugular intrahepatic portosystemic shunt (TIPS) vs endoscopic variceal sclerotherapy (EVS) in the management of gastric variceal (GV) bleeding in terms of variceal rebleeding, hepatic encephalopathy (HE), and survival by meta-analysis.METHODS: Medline, Embase, and CNKI were searched. Studies compared TIPS with EVS in treating GV bleeding were identified and included according to our predefined inclusion criteria. Data were extracted independently by two of our authors. Studies with prospective randomized design were considered to be of high quality. Hazard ratios (HRs) or odd ratios(ORs) were calculated using a fixed-effects model when there was no inter-trial heterogeneity. Oppositely, a random-effects model was employed.RESULTS: Three studies with 220 patients who had at least one episode of GV bleeding were included in the present meta-analysis. The proportions of patients with viral cirrhosis and alcoholic cirrhosis were 39% (range 0%-78%) and 36% (range 12% to 41%), respectively. The pooled incidence of variceal rebleeding in the TIPS group was significantly lower than that in the EVS group (HR = 0.3, 0.35, 95% CI: 0.17-0.71, P = 0.004). However, the risk of the development of any degree of HE was significantly increased in the TIPS group (OR = 15.97, 95% CI: 3.61-70.68). The pooled HR of survival was 1.26(95% CI: 0.76-2.09, P = 0.36). No inter-trial heterogeneity was observed among these analyses. CONCLUSION: The improved effect of TIPS in the prevention of GV rebleeding is associated with an increased risk of HE. There is no survival difference between the TIPS and EVS groups. Further studies are needed to evaluate the survival benefit of TIPS in cirrhotic patients with GV bleeding. 展开更多
关键词 GASTRIC variceal bleeding Transjugular INTRAHEPATIC portosystemic SHUNT Endoscopic variceal SCLEROTHERAPY CIRRHOSIS Hepatic ENCEPHALOPATHY
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Nonselective β-blockers may induce development of portal vein thrombosis in cirrhosis 预览
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作者 Xing-Shun Qi Ming Bai Dai-Ming Fan 《世界胃肠病学杂志:英文版(电子版)》 SCIE CAS 2014年第32期11463-11466,共4页
Currently, nonselective β-blockers(NSBBs) are commonly used for the prevention of variceal bleeding in liver cirrhosis. The beneficial effects of NSBBs are primarily attributed to the reduction in cardiac output by b... Currently, nonselective β-blockers(NSBBs) are commonly used for the prevention of variceal bleeding in liver cirrhosis. The beneficial effects of NSBBs are primarily attributed to the reduction in cardiac output by blockade of β1 receptors and vasoconstriction of the splanchnic circulation by the blockade of β2 receptors. The prognostic value of occlusive portal vein thrombosis(PVT) in cirrhotic patients has been increasingly recognized. The most important risk factor for the development of PVT in liver cirrhosis is the decreased portal vein inflow velocity. Collectively, we propose that the use of NSBBs potentially increases the development of portal vein thrombosis by reducing portal vein inflow velocity. The hypothesis should be confirmed by prospective cohort studies, in which cirrhotic patients without prior PVT treated with and without NSBBs are enrolled, and the development of PVT during followup is compared between the two groups. Additionally,subgroup analyses should be performed according to the dosage of NSBBs and the reduction of portal inflow velocity after use of NSBBs. 展开更多
关键词 Non-selective Β-BLOCKERS PROPRANOLOL NADOLOL Porta
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TIPS improves liver transplantation-free survival in cirrhotic patients with refractory ascites:An updated meta-analysis 预览 被引量:3
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作者 Ming Bai Xing-Shun Qi +3 位作者 Zhi-Ping Yang Man Yang Dai-Ming Fan Guo-Hong Han 《世界胃肠病学杂志:英文版(电子版)》 SCIE CAS 2014年第10期2704-2714,共11页
AIM:To compare the liver transplantation-free(LTF)survival rates between patients who underwent transjugular intrahepatic portosystemic shunts(TIPS)and those who underwent paracentesis by an updated meta-analysis that... AIM:To compare the liver transplantation-free(LTF)survival rates between patients who underwent transjugular intrahepatic portosystemic shunts(TIPS)and those who underwent paracentesis by an updated meta-analysis that pools the effects of both number of deaths and time to death.METHODS:MEDLINE,EMBASE,and the Cochrane Library were searched from the inception to October2012.LTF survival,liver transplantation,liver diseaserelated death,non-liver disease-related death,recurrent ascites,hepatic encephalopathy(HE)and severe HE,and hepatorenal syndrome were assessed as outcomes.LTF survival was estimated using a HR with a95%CI.Other outcomes were estimated using OR with95%CIs.Sensitivity analyses were performed to assess the effects of potential outliers in the studies according to the risk of bias and the study characteristics.RESULTS:Six randomized controlled trials with 390patients were included.In comparison to paracentesis,TIPS significantly improved LTF survival(HR=0.61,95%CI:0.46-0.82,P<0.001).TIPS also significantly decreased liver disease-related death(OR=0.62,95%CI:0.39-0.98,P=0.04),recurrent ascites(OR=0.15,95%CI:0.09-0.24,P<0.001)and hepatorenal syndrome(OR=0.32,95%CI:0.12-0.86,P=0.02).However,TIPS increased the risk of HE(OR=2.95,95%CI:1.87-4.66,P=0.02)and severe HE(OR=2.18,95%CI:1.27-3.76,P=0.005).CONCLUSION:TIPS significantly improved the LTF survival of cirrhotic patients with refractory ascites and decreased the risk of recurrent ascites and hepatorenal syndrome with the cost of increased risk of HE compared with paracentesis.Further studies are warranted to validate the survival benefit of TIPS in clinical practice settings. 展开更多
关键词 Transjugular INTRAHEPATIC portosystemic SHUNT Asci
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Shunting branch of portal vein and stent position predict survival after transjugular intrahepatic portosystemic shunt 预览 被引量:2
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作者 Ming Bai Chuang-Ye He +10 位作者 Xing-Shun Qi Zhan-Xin Yin Jian-Hong Wang Wen-Gang Guo Jing Niu Jie-Lai Xia Zhuo-Li Zhang Andrew C Larson Kai-Chun Wu Dai-Ming Fan Guo-Hong Han 《世界胃肠病学杂志:英文版(电子版)》 SCIE CAS 2014年第3期774-785,共12页
AIM:To evaluate the effect of the shunting branch of the portal vein(PV)(left or right)and the initial stent position(optimal or suboptimal)of a transjugular intrahepatic portosystemic shunt(TIPS).METHODS:We retrospec... AIM:To evaluate the effect of the shunting branch of the portal vein(PV)(left or right)and the initial stent position(optimal or suboptimal)of a transjugular intrahepatic portosystemic shunt(TIPS).METHODS:We retrospectively reviewed 307 consecu5tive cirrhotic patients who underwent TIPS placement for variceal bleeding from March 2001 to July 2010 at our center.The left PV was used in 221 patients and the right PV in the remaining 86 patients.And,224 and83 patients have optimal stent position and sub-optimal stent positions,respectively.The patients were followed until October 2011 or their death.Hepatic encephalopathy,shunt dysfunction,and survival were evaluated as outcomes.The difference between the groups was compared by Kaplan-Meier analysis.A Cox regression model was employed to evaluate the predictors.RESULTS:Among the patients who underwent TIPS to the left PV,the risk of hepatic encephalopathy(P=0.002)and mortality were lower(P<0.001)compared to those to the right PV.Patients who underwent TIPS with optimal initial stent position had a higher primary patency(P<0.001)and better survival(P=0.006)than those with suboptimal initial stent position.The shunting branch of the portal vein and the initial stent position were independent predictors of hepatic encephalopathy and shunt dysfunction after TIPS,respectively.And,both were independent predictors of survival.CONCLUSION:TIPS placed to the left portal vein with optimal stent position may reduce the risk of hepatic encephalopathy and improve the primary patency rates,thereby prolonging survival. 展开更多
关键词 Transjugular INTRAHEPATIC portosystemic SHUNT Cirr
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Taxonomic revision of Prosopocoilus gracilis (Saunders, 1854) and its allied species from China (Coleoptera: Lucanidae)
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作者 Fang Zhong Ming Bai +1 位作者 Yang Ge Xia Wan 《动物分类学报》 CSCD 北大核心 2014年第1期136-148,共13页
Prosopocoilns gracilis(Saunders,1854) and its seven allied species from China are revised.Lectotype,paralectotypes of P.gracilis(Saunders,1854) and P.denticulatus(Boileau,1901) are designated.The doubtful species,P.pi... Prosopocoilns gracilis(Saunders,1854) and its seven allied species from China are revised.Lectotype,paralectotypes of P.gracilis(Saunders,1854) and P.denticulatus(Boileau,1901) are designated.The doubtful species,P.piceipennis(Westwood,1855) is evidently confirmed as a valid species with verification of its type depository.Two highly similar species,P.crenulidens(Fairmaire,1895) and P.denticulatus(Boileau,1901) are compared in detail for correcting longstanding wrong diagnoses of them.P.similis Schenk,2009 is illustrated with male genitalia firstly.Two recently-published species,P.andreasi Schenk,2009 and P.katsurai Fujita,2010 are treated as new junior synonyms.All the five valid species in this paper are redescribed,with illustrations of adult(including type)habitus,male and female genitalia if they are available.A key to large males is provided for identifying them briefly. 展开更多
关键词 动物学 动物分类学 演化 发展
Restrictive vs liberal transfusion for upper gastrointestinal bleeding:A meta-analysis of randomized controlled trials 预览
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作者 Juan Wang Yong-Xin Bao +3 位作者 Ming Bai Yong-Guo Zhang Wen-Da Xu Xing-Shun Qi 《世界胃肠病学杂志:英文版(电子版)》 SCIE CAS 2013年第40期6919-6927,共9页
AIM:To compare the outcome of upper gastrointestinal bleeding(UGIB) between patients receiving restrictive and liberal transfusion.METHODS:PubMed,EMBASE,and Cochrane Library databases were employed to identify all re... AIM:To compare the outcome of upper gastrointestinal bleeding(UGIB) between patients receiving restrictive and liberal transfusion.METHODS:PubMed,EMBASE,and Cochrane Library databases were employed to identify all relevant randomized controlled trials regarding the outcome of UGIB after restrictive or liberal transfusion. Primary outcomes were death and rebleeding. Secondary outcomes were length of hospitalization,amount of blood transfused,and hematocrit and hemoglobin at discharge or after expansion.RESULTS:Overall,4 papers were included in this meta-analysis. The incidence of death was significantly lower in patients receiving restrictive transfusion than those receiving liberal transfusion(OR:0.52,95%CI:0.31-0.87,P = 0.01). The incidence of rebleeding was lower in patients receiving restrictive transfusion than those receiving liberal transfusion,but this difference did not reach any statistical significance(OR:0.26,95%CI:0.03-2.10,P = 0.21). Compared with those receiving liberal transfusion,patients receiving restrictive transfusion had a significantly shorter length of hospitalization(standard mean difference:-0.17,95%CI:-0.30--0.04,P = 0.009) and a significantly smaller amount of blood transfused(standard mean difference:-0.74,95%CI:-1.15--0.32,P = 0.0005) with a lower hematocrit and hemoglobin level at discharge or after expansion.CONCLUSION:Restrictive transfusion should be employed in patients with UGIB. 展开更多
关键词 Upper gastrointestinal BLEEDING Blood TRANSFUSION META-ANALYSIS RANDOMIZED controlled trial
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