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Two New Isoprenylated Stilbenes from Artocarpus chama

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Journal of Integrative Plant Biology 2007年第5期49卷 605-608页

作者： yong-hong wang Ai-Jun Hou Dao-Feng Chen Department of Pharmacognosy School of Pharmacy Fudan University Shanghai 200032 China

Two new stllbenes with two Isoprenoid groups, namely artostllbenes A （compound 1） and B （compound 2）, were Isolated from the stems of Arfocarpus chama Buch.-Ham. by repeated column chromatography. The＆ structures were elucldated as （E）-4-[2-（7-meth-xy-2-2-d-methy-6-（3-methy-but-2-eny-）-2H-1-benz-pyran-5-y-）v-ny-]benzene-1- 2-dlol （compound 1） and （Z）-4-[2-（7-meth-xy-2-2-dimethy--6-（3-methy-but-2-eny-）-2H-1-benz-pyran-5-y-）v-ny-]ben- zene-l,2-dlol （compound 2） by spectroscopic methods, mainly by 1D-, 2D-NMR and MS spectra. Compounds 1 and 2 are two cls- and trans-lsomers and compound 2 is the flrst cis-stllbene isolated from Moraceous plants.

关键词： Artocarpus chama artostilbenes A and B isoprenylated stilbene Moraceae.

Paper-like Microfibrous Nickel Catalyst for Hydrogen Production via NH_3 Decomposition in Fuel Cell Applications

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Chinese Chemical Letters 2006年第10期17卷 1397-1400页

作者： yong LU hong wang Ye LIU Ming Yuan HE Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry East China Normal University Shanghai 200062

A sinter-locked three-dimensional network of microfibrous nickel catalyst has been fabricated based on wet layup papermaking and sintering processes and this novel approach permits the production of -11 W fuel cell po... 详细信息

关键词： Microfibrous catalyst nickel hydrogen production ammonia fuel cells.

Inverse Spin Hall Effect in Two-Terminal Device with Rashba Spin-Orbit Coupling

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Communications in Theoretical Physics 2009年第12期52卷 1107-1112页

作者： ZHANG Jing-Jing LIANG Feng YANG yong-hong wang Jun Department of Physics Southeast University Nanjing 211189 China

We report a theoretic study on the inverse spin-Hall effect （ISHE） in a two-terminal nano-device that consists of a two-dimensional electron gas （2DEG） with Rashba spin-orbit coupling （RSOC） and two ideal leads. Based on a two-site toy model and Keldysh Green＇s function method, we derive an analytic result of ISHE, which shows clearly that a nonzero transverse charge current stems from the combined effect of the RSOC, the spin bias, and its spin polarization direction in spin space. Our further numerical calculations in a larger system other than two-site lattice model demonstrate that the transverse charge current, dependent on the strength of the RSOC, the Fermi energy of the system, as well as the system size, can exhibit oscillating behavior and even reverse its sign due to Rashba spin precession. These properties may be helpful for eficient detection of the spin current （spin bias） by measuring the transverse charge current in a spin-orbital coupling system.

关键词： spin Hall effect spin-orbital coupling inverse spin-Hall effect Keldysh Green's function

Syntheses and Biological Activities of Ethyl N-Hydroxy-N-(substituted)phenyloxamates as KARI Inhibitors

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Chemical Research in Chinese Universities 2007年第3期23卷 280-283页

作者： wang Bao-lei LI Zheng-ming LI yong-hong wang Su-hua Elemento-Organic Chemistry Institute State-Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 P. R. China

Nine ethyl N-hydroxy-N-（substituted） phenyloxamates （2a-2i）, based on the structure of the KARI inhibitor IpOHA, were synthesized. Their structures were established on the bases of 1^H NMR, IR, ESI-MS and elemental analyses. Among the nine compounds, four show in vitro inhibitory activity on rice KARI, with 2c and 2g[ Ki values of （35.2±4.9） and （49.4 ±6. 3） μmol/L] having similar activity to the precursor of IpOHA（A, Ki =34. 1±6. 7 μmol/L）. The results will be helpful to further molecular design of more potent KARI inhibitors.

关键词： KARI inhibitor IpOHA Phenyloxamate Synthesis Biological activity

Activation of ERK1/2 in spinal cord contributes to the development of acute cystic pain in rabbits

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Neuroscience Bulletin 2006年第4期22卷 216-220页

作者： yong-hong wang Li-Cai ZHANG Yin-Ming ZENG Key Laboratory of Anesthesiology of Jiangsu Province Xuzhou 221002 China

Objective To investigate the role of activated extracellular signal-regulated kinase 1/2 （ERK1/2） in spinal cord in the development of cystic pain in rabbit. Methods We observed the relationship between the activation of ERK1/2 in spinal cord and nociceptive behaviors, as well as the effect of U0126, a mitogen-activated protein kinase （MEK, upstream protein of ERK1/2） inhibitor, on cystic pain in rabbits by behavioral test, immunohistochemistry and western blot analysis. Results After injecting 0.5 ml formalin into gallbladder, the behaviors such as grasping of the cheek and licking of the abdomen increased in 30 min, with a significant increase in pERK1/2 expression in the spinal cord, as well as the pERK1/ 2 immunoreactive cells located in laminae Ⅴ-Ⅶ and X of the dorsal horn and ventral horn of T6 spinal cord. Administration of U0126 （100 -400 μg/kg body weight, i.v., 10 min before instillation of formalin） could attenuated nociceptive behaviors dose-dependently, but could not restrain the nociceptive behaviors completely even at the maximal efficient dose of 400 μg/kg body weight. Conclusion Activated ERK1/2 in the spinal cord at least partly participates in the development of acute inflammatory cystic pain induced by formalin in rabbits.

关键词： gallbladder cystic pain rabbit spinal cord pERK U0126

Requirement of KNAT1/BP for the Development of Abscission Zones in Arabidopsis thaliana

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Journal of Integrative Plant Biology 2006年第1期48卷 15-26页

作者： Xiao-Qun wang Wei-Hui Xu Li-Geng Ma Zhi-Ming Fu Xing-wang Deng Jia-Yang Li yong-hong wang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental Biology the Chinese Academy of Sciences Beijing 100101 China Peking-Yale Joint Center of Plant Molecular Genetics and Agrobiotechnology College of Life Sciences Peking University Beijing 100871 China National Institute of Biological Sciences Zhongguancun Biological Science Park Beijing 102206 China

The KNAT1 gene is a member of the Class I KNOXhomeobox gene family and is thought to play an important role in meristem development and leaf morphogenesis. Recent studies have demonstrated that KNAT1/BP regulates the architecture of the inflorescence by affecting pedicle development in Arabidopsis thaliana. Herein, we report the characterization of an Arabidopsis T-DNA insertion mutant that shares considerable phenotypic similarity to the previously identified mutant brevipedicle （bp）. Molecular and genetic analyses showed that the mutant is allelic to bp and that the T-DNA is located within the first helix of the KNAT1 homeodomain （HD）. Although the mutation causes a typical abnormality of short pedicles, propendent siliques, and semidwarfism, no obvious defects are observed in the vegetative stage. A study on cell morphology showed that asymmetrical division and inhibition of cell elongation contribute to the downward-pointing and shorter pedicle phenotype. Loss of KNAT/BPfunction results in the abnormal development of abscission zones. Mlcroarray analysis of gene expression profiling suggests that KNAT1/BP may regulate abscission zone development through hormone signaling and hormone metabolism in Arabidopsis.

关键词： abscission zone Arabidopsis thaliana BP/KNAT1 microarray pedicle.

Synthesis and Herbicidal Activity of Novel Sulfonylureas Containing Thiadiazol Moiety

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Chemical Research in Chinese Universities 2008年第1期24卷 32-35页

作者： GUO Wan-cheng LIU Xing-hai LI yong-hong wang Su-hua LI Zheng-ming Institute of Elemento-Organic Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 P. R. China

Thirteen novel sulfonylureas containing thiadiazole moiety were synthesized in a two-step reaction. Their structures were determined using IR, ^1H NMR, HRFTMS, and elemental analysis. Herbicidal activities of these compounds were determined in the green house bio-assay. The results show that four compounds among them exhibit some activity toward four tested herbs.

关键词： Sulfonylurea Synthesis Herbicidal activity

One pot synthesis of Ru(bpy)_3^(2+) doped graphene oxide-silica composite film for constructing high performance solid-state electrochemiluminescent sensor

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Chinese Chemical Letters 2014年第12期25卷 1520-1524页

作者： Gen-Ping Yan Xiao-Xiao He Ke-Min wang yong-hong wang Jin-Quan Liu Li-Xin Jian Yin-Fei Mao State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringCollege of BiologyKey Laboratory for Bio-nanotechnology and Molecular Engineering of Hunan ProvinceHunan University

The Ru（bpy）3^2＋ doped graphene oxide-silica composite film（Ru/GO-SiCF） was synthesized by one pot hydrolysis and condensation of tetraethylorthosilicate（TEOS） in the water-alcohol solution of graphene oxide and Ru（bpy）3^2＋ at room *** prepared Ru/GO-SiCF modified glassy carbon electrode（GCE） showed excellent electrochemiluminescence（ECL） behavior for the determination of tripropylamine（TPA） with high sensitivity and good *** expected this simple and novel material will find further application in construction of other targets sensors.

关键词： Graphene oxide(GO)-silica composite Electrochemiluminescence(ECL) Ru(bpy)3^2+ Sensor

TIPS Is Not Associated with a Higher Risk of Developing HCC in Cirrhotic Patients:A Systematic Review and Meta-analysis

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Journal of Clinical and Translational Hepatology 2019年第3期7卷 232-237页

作者： Bin Chen Long Pang Hag-Bin Chen Dong-Bo Wu yong-hong wang En-Qiang Chen Center of Infectious Diseases West China HospitalSichuan UniversityChengduChina West China School of Medicine Sichuan UniversityChengduChina Center of Infectious Diseases West China HospitalSichuan UniversityChengdu 610041China

Background and Aims:The association between portalsystemic shunt and hepatocellular carcinoma(HCC)development in patients who have cirrhosis is still *** systematic review with meta-analysis was performed to systematically clarify the potential role of portal-systemic shunt in the development of ***:The PubMed,Embase,and Cochrane Library databases were searched for potentially eligible ***-analysis with random-effects model was performed to combine the incidence rates of HCC after portal-systemic ***,seven studies were *** the present review,we mainly focused on 859 patients(365 in the transjugular intrahepatic portal-systemic shunt(TIPS)group and 494 in the non-TIPS group)from five studies to analyze incidence rates after ***:At the end of follow-up,there were 66(18%,66/365)patients who developed HCC after TIPS intervention and 63(13%,63/494)patients who developed HCC after non-TIPS *** estimates with random-effects model did not demonstrate a significant increase of incidence of HCC after TIPS(risk ratio:1.37[confidence interval(CI):0.96 to 1.97];p=0.08)compared with non-TIPS *** analyses for those patients with transplanted liver also did not detect a significant difference between the TIPS group and non-TIPS group(risk ratio:1.10[CI:0.59 to 2.07];p=0.75).Conclusions:Current evidence suggests that portal-systemic shunt is not associated with a higher risk of HCC development in cirrhotic patients.

关键词： Transjugular intrahepatic portal-systemic shunt(TIPS) Hepatocellular carcinoma(HCC) Hepatic cirrhosis Systematic review