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| 1 | Alkaloid profiling of the traditional Chinese medicine Rhizoma corydalis using high performance liquid chromatography-tandem quadrupole time-of-flight mass spectrometry显示文摘Since alkaloids are the major active constituents of Rhizoma corydalis(RC),a convenient and accurate analytical method is needed for their identification and characterization.Here we report a method to profile the alkaloids in RC based on liquid chromatography-tandem quadrupole time-of-flight mass spectrometry(LC–Q-TOF-MS/MS).A total of 16 alkaloids belonging to four different classes were identified by comparison with authentic standards.The fragmentation pathway of each class of alkaloid was clarified and their differences were elucidated.Furthermore,based on an analysis of fragmentation pathways and alkaloid profiling,a rapid and accurate method for the identification of unknown alkaloids in RC is proposed.The method could also be useful for the quality control of RC. | Mingqian Sun Jianxun Liu Chengren Lin Lan Miao Li Lin | 2014 | Acta Pharmaceutica Sinica B2014，4，3： | 14 |
| 2 | Cuprizone-induced demyelination in mice: age-related vulner-ability and exploratory behavior deficit显示文摘Schizophrenia is a mental disease that mainly affects young individuals (15 to 35 years old) but its etiology remains largely undefined. Recently, accumulating evidence indicated that demyelination and/or dysfunction of oligodendrocytes is an important feature of its pathogenesis. We hypothesized that the vulnerability of young individuals to demyelination may contribute to the onset of schizophrenia. In the present study, three different age cohorts of mice, i.e. juvenile (3 weeks), young-adult (6 weeks) and middle-aged (8 months), were subjected to a 6-week diet containing 0.2% cuprizone (CPZ) to create an animal model of acute demyelination. Then, age-related vulnerability to CPZ-induced demyelination, behavioral outcomes, and myelination-related molecular biological changes were assessed. We demonstrated: (1) CPZ treatment led to more severe demyelination in juvenile and young-adult mice than in middle-aged mice in the corpus callosum, a region closely associated with the pathophysiology of schizophrenia; (2) the higher levels of demyelination in juvenile and young-adult mice were correlated with a greater reduction of myelin basic protein, more loss of CC-1-positive mature oligodendrocytes, and higher levels of astrocyte activation; and (3) CPZ treatment resulted in a more prominent exploratory behavior deficit in juvenile and young-adult mice than in middle-aged mice. Together, our data demonstrate an age-relatedvulnerability to demyelination with a concurrent behavioral deficit, providing supporting evidence for better understanding the susceptibility of the young to the onset of schizophrenia. | Hongkai Wang Chengren Li Hanzhi Wang Feng Mei Zhi Liu Hai-Ying Shen Lan Xiao | 2013 | Neuroscience Bulletin2013，29，2： | 4 |
| 3 | A 15-year analysis of molecular epidemiology of avian infectious bronchitis coronavirus in China显示文摘 | Zongxi Han Chuyang Sun Baolong Yan Xiaonan Zhang Yu Wang Chengren Li Qingxia Zhang Yazhen Ma Yuhao Shao Qiaoran Liu Xiangang Kong Shengwang Liu | 2010 | Infection Genetics and Evolution2010，，1： | 2 |
| 4 | A 15-year analysis of molecular epidemiology of avian infectious bronchitis coronavirus in China显示文摘 | Zongxi Han Chuyang Sun Baolong Yan Xiaonan Zhang Yu Wang Chengren Li Qingxia Zhang Yazhen Ma Yuhao Shao Qiaoran Liu Xiangang Kong Shengwang Liu | 2010 | Infection Genetics and Evolution2010，，1： | 2 |
| 5 | A-B 7300 CNC Machine Tool Rebuilding显示文摘A-B7300CNCMachineToolRebuildingLiChengrenMarineEngineeringInstitute,NorthwesternPolytechnicalUniversityXi’an,710072,P.R.China... | Li Chengren Marine\ Engineering Institute, Northwestern Polytechnical University Xi’an, 710072, P.R.China | 1997 | International Journal of Plant Engineering and Management1997，2，4： | 1 |
| 6 | An efficient and economical culture approach for the enrichment of purified oligodendrocyte progenitor cells显示文摘 | Jianqin Niu Lingyun Wang Shubao Liu Chengren Li Jiming Kong Hai-Ying Shen Lan Xiao | 2012 | Journal of Neuroscience Methods2012，，1： | 1 |
| 7 | Frequency upconversion luminescence in Yb3+/Era+ codoped silicate glass 显示文摘 | Li Jianyong Li Chengren Li Shufeng | 2006 | Journal of Rare Earths2006，24，2： | 1 |
| 8 | Molecular Characterization and Pathogenicity of Infectious Bronchitis Coronaviruses: Complicated Evolution and Epidemiology in China Caused by Cocirculation of Multiple Types of Infectious Bronchitis Coronaviruses显示文摘 | Liu Shengwang Zhang Xiaonan Wang Yu Li Chengren Han Zongxi Shao Yuhao Li Huixin Kong Xiangang | 2009 | Intervirology2009，，4： | 1 |
| 9 | Expand Friendly Cooperation and Build a Harmonious World显示文摘As early as in the beginning of the 1980's,the Chinese Association for International Understanding (CAFIU) started exchanges with the Friendrich Ebert Stiftung (FES). Since FES set up its Beijing office in 1987,fruitful cooperation has been conducted between FES and CAFIU,and other relevant parties of the Chinese side. Over the years,FES has made positive efforts and great contributions for deepening and developing understanding and friendship between the Chinese people and the German people,and for promoting the relations between the two countries and two parties,which we highly appreciate. | Li Chengren | 2007 | International Understanding2007，，1： | 0 |
| 10 | Build Consensus and Deepen Cooperation显示文摘(1) Build consensus and promote the construction of East Asian Community.East Asia is one of the most economically dynamic and promising regions in the world. With | Li Chengren Ma Jingjing | 2010 | International Understanding2010，，1： | 0 |
| 11 | Keynote Speech at the Opening Ceremony of the 2012 Understanding and Cooperation Dialogue显示文摘正Ladies and gentlemen, dear friends, On behalf of the sponsor organization-Chinese Association for International Understanding (CAFIU), let me begin with extending my warm welcome to all distinguished guests and delegates from home and abroad present at the 2012 Understanding and Cooperation Dialogue, as well as my | Li Chengren Ma Jingjing | 2012 | International Understanding2012，，2： | 0 |
| 12 | Speech at the Seminar on Sino-Japan Strategic and Mutually Beneficial Relationship显示文摘This year marks the 35th anniversary of the normalization of Sino-Japan relations. Thedevelopment of Sino-Japan bilateral ties is now facing both opportunities and challenges. In | Li Chengren | 2007 | International Understanding2007，，3： | 0 |
| 13 | Speech at the FES Thanksgiving Reception显示文摘Distinguished President Anke Fuchs,Ladies and gentlemen,Dear friends,On behalf of the Chinese Association for International Understanding, I would like | Li Chengren Wang Xiaoyi | 2010 | International Understanding2010，，2： | 0 |
| 14 | Work Report to the 10^(th) Council Meeting of CAFIU (Extracts)显示文摘(April 24, 2009)Entrusted by President Li Guixian and on behalf of the 9th council of CAFIU, I now submit a report onthe work of CAFIU for your examination | Li Chengren Wang Xiaoyi | 2009 | International Understanding2009，，2： | 0 |
| 15 | Address at the Opening Ceremony of the Seminar on “Global Security System under the Background of International Financial Crisis”显示文摘(March 9, 2009)Ladies and gentlemen, friends, Today, the 8th Sino-German Seminar on Comprehensive Security opens here. On behalf of CAFIU, I would like to extend our warm welcome to all the | Li Chengren | 2009 | International Understanding2009，，2： | 0 |
| 16 | Keynote Speech at Sino-Japanese Symposium on Asian Situation and Peace显示文摘First of all, on behalf of the delegation of the Chinese Association for International Understanding (CAFIU), I would like to extend warm congratulations on the successful opening | Li Chengren Shi Dongmei | 2009 | International Understanding2009，，2： | 0 |
| 17 | Studies of cocoa tea, a wild tea tree containing theobromine显示文摘Camellia ptilophylla Chang is a wild tea tree containing theobromine and is caffeine-free.Lots of researches have been conducted for its domestication since it was discovered to contain theobromine in its shoots.First,its pharmacological and physiological effects have been studied,demonstrating that it can be used as a new resource of tea as daily and healthy beverage.Cocoa tea differs from traditional tea in that it does not excite the nervous system.Second,various ways of propagation have been investigated,and sexless cutting has been the method adopted currently.Third,through selection and breeding,plantation of cocoa tea can be set up to cultivate new varieties,and cocoa tea of different flavors such as green cocoa tea,oolong cocoa tea,and black cocoa tea can be processed.Thus,cocoa tea will become a choice in the tea market. | Xiaohong SONG Xianggang SHI Yunqin LI Li PENG Chengren LI Xiaorong YANG Chuangxing YE Jiaxian LI Yumei HE Hualin HUANG Aiqing MIAO Chaoyi ZHAO Jiayao WU Caijin LIN | 2009 | Frontiers in Biology2009，4，4： | 0 |
| 18 | Address at the Opening Ceremony of “the Seminar on China-Europe and New World Order”显示文摘Hon. Mr. Kolbow, Hon. Ambassador Schaefer,Dear experts and scholars,Ladies, gentlemen, friends:Today, the 7th Sino-German Security Dialogue—the Seminar on 'China-Europe and New | Li Chengren Xiao Lan | 2008 | International Understanding2008，，3： | 0 |
| 19 | Speech at the Seminar of 'Building a Mutually Beneficial and Win-win Sino-Japanese Partnership '显示文摘 | Li Chengren Wang Xiaoyi(译) | 2005 | International Understanding2005，，3： | 0 |
| 20 | Address at the Opening Ceremony of the Seminar on China-Japan Cooperation on Non-traditional Security显示文摘Respected Secretary-General Yamada Tadashi,Respected scholars,Good morning!First of all, on behalf of the Chinese People’s Association for International Understanding(CAFIU), I would like to extend warm welcome tothe delegation of Kazankai led by Secretary-General Yamada Tadashi, and | Li Chengren, Vice-president of CAFIU Shi Dongmei | 2011 | International Understanding2011，，4： | 0 |
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