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2019中国生理学会学术年会暨张锡钧基金第十五届全国青年优秀生理学学术论文交流会及第十三届全国青年生理学工作者学术会议

作者：孙羽灵 YANG Yan QIAN Lin-nan GUAN Dong-lang JIAN Tun-yu TANG Zong-xiang School of Medicine ·Holistic Integrative Medicine Nanjing University of Chinese Medicine

Backgrounds:Raw lacquer is an important chemical raw material needed in production and life,but the application and promotion of lacquer was limited by its high *** main component of lacquer is urushiol, and it also has strong sensitization as raw *** who are allergic to urushiol may develop a wart-like or wheal-like rash, with symptoms of burning, swelling,and ***, the mechanism of the intense itching induced by urushiol and the corresponding clinical treatment is still not *** hope to explore the mechanism and search therapeutic ***: 1) To explore the mechanism of urushiol-induced allergic pruritus related with mast cells.2) To explore how aloe-emodin can reduce urushiol-induced itching by inhibiting degranulation of mast cells.3) To search the pruritus substances and the signaling pathway released during the degranulation of mast ***:1) We extracted urushiol from fresh raw lacquer using suspension drop method.2)Scratching numbers of mice were used to evaluate the degree of pruritus induced by urushiol and reduceded by aloe-emodin in behavior tests.3) The difference in the number of mast cells and the number of degranulation of mast cells in skin sections was determined by hematoxylin-eosin staining and toluidine blue staining.4) qRT-PCR, Western Blot, ELISA and *** used to determine the pruritus substance which released by the degranulation of mast cells;5) We cultured DRG neurons from wildtype mice to find receptors and signaling pathways of pruritus substances using calcium imaging ***:1) 2% urushiol can cause acute scratching *** with the acetone control group, the scratching numbers was significantly increased during the first hour after 2% urushiol was applied to the neck of the mouse;Four hours later, the scratching numbers of the mouse decreased significantly compared with the first hour, but there was still a significant difference compared with the control g

关键词： urushiol mast cell degranulation aloe-emodin itch

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Laccase-catalysed semisynthesis of urushiol coumarin derivatives and their anticancer activity

Laccase-catalysed semisynthesis of urushiol coumarin derivat...

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中国化学会第十二届全国天然有机化学学术会议

作者： Zhiwen Qi Chengzhang Wang Jianxin Jiang Institute of Chemical Industry of Forest Products CAF Key and Open Laboratory on Forest Chemical Engineering SFA College of Material Science and Technology Beijing Forestry University

Lacquer laccase coexists with lacquer urushiol in Toxicodendron vernicifluum（Stokes）.And T1 Cu location redox potential of it is lower than that of some laccase from bacterial colony,just reaching 430 mV. Laccase catalysis reaction is generally realized by oxidizing to free radicals which are reoxidized to large volume or substrate molecules with high redox potential *** as novel antitumor ingredients,urushiol easily converts to coumarin derivatives which show human carbonic anhydrase（hCA） inhibitory *** hCA inhibition is one of the underlying mechanisms that account for the activities of some antiepileptic drugs（AEDs）,it’s expected to have anti-seizure ***,we designed as well as synthesized a series of novel C15 triene urushiol derivatives,and the results indicated that they are effective in inhibiting HepG2 ***,we first analyzed the probable binding-modes of the most active compound by molecular docking algorithms,and calculated their enzymatic bioactivity against ***,some derivatives can excellently reduce the hCA expression.

关键词： urushiol redox potential coumarin derivatives antitumor hCA

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Studies on the Coordination Polymer of Copper El ectropol yurushiol

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Chemical Research in Chinese Universities 2001年第3期17卷 318-324页

作者： TANG Jie-yuan ZHANG Wen-gong SHEN Guo-cai GAO Feng Institute of Polymer SCience Fujian Teachers UniversityFuzhou 350007P.R.China

The coordination polymer of copper electropolyurushiol(EPU-Cu^(2+)) was obtained by the reaction of copper chloride with electropolyurushiol (EPU) in an isopropyl alcohol solution. The properties of EPU-Cu^(2+) were studied by means of ESR, FTIR, XPS, DMTA and TG-DTA. The results of AES show that the content of Cu^(2+) was 8.63%. The electric resistances of EPU-Cu^(2+) and EPU were determined to be 9, 37×10^(10) Ω and 7.90×10^(10) Ω respectively. It was also ascertained that in EPU-Cu^(2+) each Cu^(2+) is coordinated with two units hydroxyl in EPU, making the EPU-Cu^(2+) cross-link further. As a result, the title polymer exhibits an insolubility in most of organic solutions, a higher glass transition temperature and thermal resistance.

关键词： urushiol Electrochemical polymerization Coordination polymer

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Film Forming Mechanisms of Natural Lacquer from Chinese Lac Trees by Pyrolysis Gas-chromatography/Mass Spectrometry

Film Forming Mechanisms of Natural Lacquer from Chinese Lac ...

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中国化学会第27届学术年会

作者：万云洋 Tetsuo Miyakoshi State Key Laboratory of Petroleum Resource and Prospecting Faculty of Natural Resource and Information Technology China University of Petroleum (Beijing) Department of Industrial Chemistry Meiji University

＜正＞Natural lacquer（Chinese lacquer）is a complex mixture and its film-forming process is rather *** mechanisms exist but contradict each other,mainly due to lack of suitable research.A simple method using pyrolysi... 详细信息

关键词： raw lacquer urushiol laccases film formation pyrolysis mechanism

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漆酚基乳化剂的制备与性能研究

漆酚基乳化剂的制备与性能研究

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2006年全国高分子材料科学与工程研讨会

作者：郑燕玉胡炳环林金火福建师范大学化学与材料学院福建师范大学化学与材料学院福建师范大学化学与材料学院

＜正＞生漆是含有漆酚、漆酶、核蛋白、多糖和水的W／O型乳液,不能直接用水稀释而达到易施工的目的。本文研究由漆酚、环氧氯丙烷和聚乙二醇制备反应性漆酚基乳化剂的方法、表面性能及其对生漆的乳化作用。首先,由漆酚（U）和环氧氯丙烷... 详细信息

＜正＞生漆是含有漆酚、漆酶、核蛋白、多糖和水的W／O型乳液,不能直接用水稀释而达到易施工的目的。本文研究由漆酚、环氧氯丙烷和聚乙二醇制备反应性漆酚基乳化剂的方法、表面性能及其对生漆的乳化作用。首先,由漆酚（U）和环氧氯丙烷（ECH）合成活性中间体——漆酚基缩水甘油醚（UD）,再用 UD与聚乙二醇800（PEG800）在不同的条件下合成漆酚基乳化剂（UE8）(UD:PEG800分别为

关键词： urushiol urushiol-based emulsifier surface tension synthesis: raw lacquer

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漆酚的紫外光聚合反应特性

漆酚的紫外光聚合反应特性

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2006年全国高分子材料科学与工程研讨会

作者：徐艳莲林金火胡炳环福建师范大学化学与材料学院福建师范大学化学与材料学院福建师范大学化学与材料学院

＜正＞生漆是一种天然高分子材料,在常温下会自然干燥成膜,但必须依赖漆酶的催化作用, 同时还需要特定的环境条件（温度20～30℃;相对湿度为80～90％）引。本文探讨生漆的主要成膜物质漆酚的紫外光聚合反应,并对其聚合机理进行初步研究... 详细信息

＜正＞生漆是一种天然高分子材料,在常温下会自然干燥成膜,但必须依赖漆酶的催化作用, 同时还需要特定的环境条件（温度20～30℃;相对湿度为80～90％）引。本文探讨生漆的主要成膜物质漆酚的紫外光聚合反应,并对其聚合机理进行初步研究。漆酚的紫外光聚合克服了生漆干燥成膜需特定的温度、湿度及干燥慢的缺点,有关这方面的研究未见文献报道。

关键词： urushiol UV polymerization mechanism

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