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Depsides from Prunella vulgaris

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Chinese Chemical Letters 2000年第11期11卷 997-1000页

作者： Wang, ZJ Zhao, yy Wang, B Al, TM chen, yy Beijing Med Univ Dept Nat Med Beijing 100083 Peoples R China

A novel depsides 1, together with three known ones 2 similar to4 and two phenylpropanoids 5 similar to6 were isolated from the ethanol extract of the spikes of Prunella vulgaris. On the basis of spectral and chemical evidence. their structures were determined as butyl rosmarinate 1, ethyl rosmarinate 2. methyl rosmarinate 3, rosmarinic acid 4, 3,4,alpha -trihydroxy-methyl phenylpropionate 5 and p-coumaric acid 6, respectively.

关键词： MS acid Wang DMSO 亚砜 FAB

Synthesis of the First Calixselenacrown

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Chinese Chemical Letters 1997年第9期8卷 777-778页

作者： Hu, XB chen, yy Lu, XR WUHAN UNIV DEPT CHEMWUHAN 430072PEOPLES R CHINA

The synthesis of a novel type of calixcrown 5,11,17,Z3-p-tert-butyl-25,27 dihydroxy-26,28-(3',7'-diselena-5',5'-dimethylnonylene) dioxy-calix[4]arene is described.

关键词： HZ Synthesis of the First Calixselenacrown

Sequence variations of the S7 ribosomal protein gene in primitive cyprinid fishes: Implication on phylogenetic analysis

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Chinese Science Bulletin 2002年第19期47卷 1638-1643页

作者： Wang, XZ He, SP chen, yy Chinese Acad Sci Inst Hydrobiol Wuhan 430072 Peoples R China

Cyprinidae is the largest fish family in the world and contains about 210 genera and 2010 species. Appropriate DNA markers must be selected for the phylogenetic analyses of Cyprinidae. In present study, the 1st intron of the S7 ribosomal protein (r-protein) gene is first used to examine the relationships among cyprinid fishes. The length of the 1st intron obtained by PCR amplification ranges from 655 to 859 bp in the 16 cyprinid species investigated, and is 602 bp in Myxocyprinus asiaticus. Out of the alignment of 925 nucleotide sites obtained, the parsimony informative sites are 499 and occupy 54% of the total sites. The results indicate that the 1st intron sequences of the S7 r-protein gene in cyprinids are rich in informative sites and vary remarkably in sequence divergence from 2.3% between close species to 66.6% between distant species. The bootstrap values of the interior nodes in the NJ (neighbor-joining) and MP (most-parsimony) trees based on the present S7 r-protein gene data are higher than

关键词： S7 ribosomal protein gene phylogeny Cyprinidae se-quence variations intron.

Study　on　the　Application　of　Polysiloxane　with　N－decanyltartrimide　Moieties　in　Capillary　Electrophoresis

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Chinese Chemical Letters 1996年第9期7卷 829-830页

作者： Zhang, LF Hu, S Lu, XR cheng, JK chen, yy WUHAN UNIV DEPT CHEMWUHAN 430072PEOPLES R CHINA

Synthesis of polysiloxane with N-decanyltartrmide moieties and its application in coated capillary eletrophoresis are reported.

关键词： Application the Capillary Moieties Polysiloxane

TWO　NOVEL　EASILY　PREPARED　CHIRAL　POLYSILOXANE　STATIONARY　PHASES　FOR　GC　RESOLUTION　OF　ENANTIOMERS

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Chinese Chemical Letters 1995年第1期6卷 53-54页

作者： Zhou, XC Lu, XR Wu, CY chen, yy Wuhan Univ Dept Chem Wuhan 430072 Peoples R China

Tuv new substituted chiral polysiloxanes were synthesized by the reaction of polymethylhydrosiloxan with chiral moieties containing alkenes derived from D-tartaric acid and L-phenylalanine,The primary GC characteristics of the two phases were also *** use of charal stationary phases (CSPs) to affect separation of enantiomers of organiccomPOunds have increased dramatically in the last decade. The development covalently bonding Nisobutyryl--valine tert--butylamide or benzyloxycarbonyl--L--vallne with silicone has improved thermalstability and these phases can resolve most protein amino acid enantiomers in a short time[1-3j. Butthey are expensive and their preparation is difficult.

关键词： GC RESOLUTION PHASES OF STATIONARY EASILY CHIRAL

Calixthiacrown:A New Multidentate Ligand for Platinum Metal

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Chinese Chemical Letters 1997年第3期8卷 213-214页

作者： chen, yy Zhong, ZL Zhou, YS Zhang, BL Lu, XR WUHAN UNIV DEPT CHEMWUHAN 430072PEOPLES R CHINA

5, 11, 17, 23-Tetra-tertbutyl-25,27-dihydroxy-26, 28-1', 7',13'-trioxa-4', 10'-dithiatridecene calix [4]arene (Calix [4]dithiacrown-5) was synthesized from tetra-tertbutyl-calix[4]arene via 1,3-lower rim functionallization with chloroethyltosylate, followed by ring-closing condensation with beta,beta'-dimercaptoethyl ether in the presence of sodium ethoxide as a base under nitrogen atmosphere. It was found that the calix[4]dithiacrown-5 can form a platinum complex and the complex can catalyze the hydrosilylation of olefins with triethoxysilane efficiently.

关键词： Cl FAB Calixthiacrown ppm

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下背痛的评价及其患者生活质量的评价

中国组织工程研究与临床康复 2007年第23期11卷 4614-4617页

作者：陈裔英乔晋琳解放军海军总医院康复理疗科北京市100037

目的:总结分析近10年国内外下背痛患者生活质量的研究状况,以期提高医疗过程中的注意力。资料来源:应用计算机检索Medline1997-01/2006-06与下背痛患者生活质量研究相关的文献,检索词“low back pain,quality of life”,限定文献语言种... 详细信息

目的:总结分析近10年国内外下背痛患者生活质量的研究状况,以期提高医疗过程中的注意力。资料来源:应用计算机检索Medline1997-01/2006-06与下背痛患者生活质量研究相关的文献,检索词“low back pain,quality of life”,限定文献语言种类为English。同时计算机检索清华全文数据库1998-01/2006-06相关下背痛患者生活质量研究的文献,检索词“下背痛,生活质量”,限定文献语言种类为中文。资料选择:对资料进行初审,选取包括下背痛患者生活质量研究的文献,开始查找全文。纳入标准:包含下背痛的诊断、评定、治疗以及下背痛的健康教育和社会支持等多方面文献,绝大多数文献都与生活质量研究有关。排除标准:重复研究,Meta分析,没有对照组的文献。资料提炼:共检索到52篇关于下背痛患者生活质量研究的文献,最终纳入30篇符合标准的文献。资料综合:生活质量涉及到生理、心理、社会、文化、经济以及精神等不同层面,是指个体在其所在文化、风俗习惯的背景下,由他生活的标准、理想追求的目标所决定的对他目前社会地位、生活状态的认识和满意程度。提高下背痛患者的生活质量,关系到患者的治疗效果。下背痛患者普遍存在躯体症状和抑郁的心理反应,两方面的表现都可能使患者的生活质量受到影响。在对下背痛患者的治疗中,不仅只关注躯体功能和疾病本身,同时还应注重心理功能和社会职能。结论:随着对下背痛的病因、预防、治疗及康复研究的进一步深入,下背痛困扰人类的现象在不久必将得到很大改善。

关键词：下背痛生活质量综述文献

Fungi from Asian Karst formations I. Pestalotiopsis photinicola sp. nov., causing leaf spots of Photinia serrulate

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Fungi from Asian Karst formations I. Pestalotiopsis photinic...

cDNA microarray analysis of differential gene expression in Candida albicans biofilm exposed to farnesolides

多彩菌物美丽中国——中国菌物学会2019年学术年会

作者： chen yy Maharachchikumbura SSN Liu JK Hyde KD Nanayakkara RR Zhu GS Liu ZY Agricultural College of Guizhou University Guizhou Institute of Crop Genetic Resources Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural Sciences Department of Crop Sciences College of Agricultural and Marine Sciences Sultan Qaboos University Guizhou Institute of Biotechnology Center of Excellence in Fungal Research Mae Fah Luang University

This is the first in a series of papers on the fungi growing on plants in the Karst formations of the Asian region. In this study, we collected leaf specimens of Photinia with numerous spots from Guiyang Botanical Gardens, Guiyang, China. A combination of morphological characters, together with analyses of combined ITS,TUB and TEF sequence data, distinguished the taxon as a new species of Pestalotiopsis. The new taxon is herein described as Pestalotiopsis photinicola and discussed in relation to the most related taxa.

关键词： Karst fungi new species phylogeny taxonomy

来源： cnki会议评论

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cnki会议

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第二军医大学学报 2006年第4期27卷 404-404页

作者： Cao yy Cao YB Xu Z Ying K IA Y Xie Y Zhu ZY chen WS Jiang yy Department of Pharmacology School of PharmacySecond Military Medical University Shanghai 200433 China