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Multiscale analysis of the contents of palmatine in the Nature populations of Phellodendron amurense in Northeast China

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Journal of Forestry Research 2016年第2期27卷 265-272页

作者： Minglong Sun lijiao xu Yingli Peng Tong Liu Yuhong Zhang Zhiqiang Zhou Key Laboratory of Forest Ecology of Ministry of Education Northeast Forestry UniversityHarbin 150040People's Republic of China Research Center of Eco-environmental Science Beijing 100085People's Republic of China Center for Ecological Research Northeast ForestryUniversityHarbin 150040People's Republic of China

Palmatine is a valuable ingredient in Chinese medicine that is produced by Phellodendron amurense Rupr. The contents of palmatine content in root bark, trunk bark, perennial branch bark, annual branches, and leaves of the trees with different ages and geographies in Northeast China were measured by high-performance liquid chromatography. The contents of palmatine in the barks of root, trunk, and perennial branch were significantly higher than those in annual branches and leaves. The contents of palmatine in trunk bark and root bark from Lesser Khingan Mountains increased with age, which is significantly opposite to other three vegetation types. The contents of palmatine in perennial branch bark, annual bark and leaves had no significant reg- ularity. Moreover, the contents of palmatine in samples of root bark, trunk bark, perennial branch bark and annual bark varied significantly with latitude. The nature populations of P. amurense growing at low latitude contained significantly more palmatine than those growing at high latitude. These results provide a scientific basis for the reasonable cultivation and efficient utilization of P. amurense.

关键词： Content variations Multiscale analysis Palmatine Phellodendron amurense

Didymin attenuates doxorubicin-induced cardiotoxicity by inhibiting oxidative stress

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Chinese Herbal Medicines 2022年第1期14卷 70-78页

作者： Rongchang Chen Guibo Sun lijiao xu xu Zhang Wenying Zeng Xiaobo Sun Institute of Medicinal Plant Development Peking Union Medical College and Chinese Academy of Medical SciencesBeijing 100193China Department of Comprehensive Medicine Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijing 100091China

Objective:This study was designed to investigate the protective effects of didymin(Did)on doxorubicin(DOX)-induced ***:After pretreatment with Did(2,4,8 mg/kg intraperitoneal i.p.)for 7 d,the male C57 mice were injected with single dose of DOX(20 mg/kg i.p.).The cardioprotective effect of Did was observed on the 7th day after DOX ***:DOX delayed body growth and caused cardiac tissue injury,oxidative stress,and mitochondrial *** experiments in H9C2 cardiomyocytes showed that DOX reduced cell viability,increased generation of reactive oxygen species(ROS)and fragmentation of DNA,decreased mitochondrial membrane potential,and induced cardiomyocyte ***,all of these adverse effects were suppressed by Did *** increased protein expression of glutamate-L-cysteine ligase catalytic subunit(GCL),heme oxygenase 1(HO-1),and nuclear factor erythroid 2-related factor 2(Nrf2).Besides,Did also induced activation of PI3K/***:These findings indicated Did prevented DOX-induced cardiac injury and apoptosis via activating PI3K/AKT/Nrf2 signaling pathway.

关键词： cardiotoxicity didymin doxorubicin Nrf2 PI3K/Akt

Development,Challenges and Opportunities of Global Energy Governance

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China Oil & Gas 2018年第4期25卷 10-17页

作者： Wang Zhen xu lijiao Academy of Chinese Energy Strategy (ACES) of the China University of Petroleum-Beijing (CUPB)

Energy is the lifeblood and driving force of the global economy and even one of the core fields of international competition and contention. With the US Shale Revolution and the increasing share of total global energy consumption accounted for by emerging economies, the pace of the adjustment of global energy supply and demand has accelerated, and the demand for the adjustment and reform of global energy governance to adapt to the new and ever-changing situation is becoming stronger and stronger.

关键词：精力开发全球经济国际竞争驱动力调整消费

Development Status and Prospects of CCS-EOR Technology in China

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China Oil & Gas 2018年第2期25卷 24-29页

作者： Wang Zhen xu lijiao Academy of Chinese Energy Strategy China University of Petroleum

China surpassed the United States （US） in 2006 to become the largest greenhouse gas emitter. CCS- EOR technology, which meets the dual needs of reducing carbon emissions and enhancing oil recovery, has had much importance attached to it. For the latest decade, the Chinese government has provided support for CCS- EOR technology through policy, funding and research projects. Under the vigorous guidance of the government, oil companies represented by China National Petroleum Corporation （CNPC） competed to carry out research, demonstration, popularization and operation in major oil fields centering on the CCS-EOR technology and achieved remarkable results. Its scientific and technological achievements are reflected in various sub-projects under the 863 Program, 973 Program and National Science and Technology Major Project. However, while shifting from trial promotion of the current stage to large-scale commercialization, CCS-EOR technology will not only face many opportunities but also quite a few challenges.

关键词： CCS-EOR technology Carbon emission Oil recovery Development status

Digitalisation is Reshaping the Oil and Gas Industry

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China Oil & Gas 2019年第1期26卷 3-7页

作者： Wang Zhen xu lijiao Ma Ning Academy of Chinese Energy Strategy China University of Petroleum (Beijing) China Petroleum Material Purchasing Center

The 'Industry 4.0' era is characterised by a series of new digital technologies, which affect every link of the vertical value chain and are the important driving force of world change. Digitalisation creates new jobs... 详细信息

关键词： characterised digital technologies affect

Develop as an ESP Practitioner

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读与写(教育教学刊) 2008年第8期5卷 15-15页

作者： xu lijiao(Guangdong AIB Polytechnic College Guangzhou 510507) Guangdong AIB Polytechnic College Guangzhou 510507

Without doubt,differences between teaching General English and ESP do *** teachers new to ESP,the question of what they can do to improve his or her knowledge of specialist subjects is perhaps one of the first issues ... 详细信息

关键词： ESP subject area development

AI芯片全方位赋能汽车智能化——访地平线公司创始人兼CEO余凯

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科技导报 2021年第4期39卷 26-27页

作者：徐丽娇《科技导报》编辑部北京100081

2020年2月,国家发展改革委员会、工业和信息化部、交通运输部等多部门联合印发了《智能汽车创新发展战略》;2020年11月,国务院办公厅印发了《新能源汽车产业发展规划(2021—2035年)》。随着5G网络的普及和车联网技术的发展,智能汽车将... 详细信息

2020年2月,国家发展改革委员会、工业和信息化部、交通运输部等多部门联合印发了《智能汽车创新发展战略》;2020年11月,国务院办公厅印发了《新能源汽车产业发展规划(2021—2035年)》。随着5G网络的普及和车联网技术的发展,智能汽车将迎来广阔的蓝海市场。为紧跟车载人工智能(AI)芯片研发前沿,展示科技赋能汽车产业变革,《科技导报》采访了地平线公司创始人兼CEO余凯博士。

关键词：新能源汽车产业创新发展战略《科技导报》智能汽车蓝海市场公司创始人工业和信息化部国务院办公厅

坚定信仰,履践致远,矢志不渝“中国芯”——访中国科学院院士王阳元

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科技导报 2021年第12期39卷 21-27页

作者：徐丽娇《科技导报》编辑部北京100081

中华人民共和国成立以来,一代又一代科学家怀着深厚的爱国主义情怀,凭借精湛的学术造诣、宽广的科学视野,在祖国大地上树立起一座座科技创新的丰碑。老一辈科学家爱国奉献、淡泊名利、刻苦攻关的精神,是科技工作者在长期科学实践中积累... 详细信息

中华人民共和国成立以来,一代又一代科学家怀着深厚的爱国主义情怀,凭借精湛的学术造诣、宽广的科学视野,在祖国大地上树立起一座座科技创新的丰碑。老一辈科学家爱国奉献、淡泊名利、刻苦攻关的精神,是科技工作者在长期科学实践中积累的宝贵精神财富,为后人树立了优秀的榜样。为展现我国科学家与党同心、锐意创新的爱国情怀。

关键词：中国科学院院士科技工作者学术造诣爱国主义情怀中国芯王阳元宝贵精神财富爱国情怀

众心向党,科研报国——科技工作者共庆建党100周年

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科技导报 2021年第12期39卷 146-156页

作者：徐丽娇《科技导报》编辑部北京100081

2021年是中国共产党成立100周年,是"十四五"开局之年,也是全面建设社会主义现代化国家新征程开启之年。5月28日,习近平总书记在两院院士大会、中国科协第十次全国代表大会上指出:"中国科协要肩负起党和政府联系科技工作者桥梁和纽带的职... 详细信息

2021年是中国共产党成立100周年,是"十四五"开局之年,也是全面建设社会主义现代化国家新征程开启之年。5月28日,习近平总书记在两院院士大会、中国科协第十次全国代表大会上指出:"中国科协要肩负起党和政府联系科技工作者桥梁和纽带的职责,坚持为科技工作者服务、为创新驱动发展服务、为提高全民科学素质服务、为党和政府科学决策服务,更广泛地把广大科技工作者团结在党的周围,弘扬科学家精神,涵养优良学风。"

关键词：科技工作者中国科协全国代表大会两院院士大会全民科学素质桥梁和纽带创新驱动发展科学决策