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| 1 | Induction of apoptosis by casticin in cervical cancer cells: reactive oxygen species-dependent sustained activation of Jun N-terminal kinase显示文摘Casticin,从 Fructus viticis 的 polymethoxyflavone 在中国传统的药用作一个反煽动性的代理人,被报导了有反癌症活动。这研究的目的是在人的颈的癌症房间和它的分子的机制上检验 casticin 的 apoptotic 活动。我们揭示了导致 casticin 的 apoptosis 由发生的新奇机制并且第一次证明 casticin 导致的 apoptosis 通过反应的氧种类(ROS ) 的产生被调停并且在 HeLa 细胞支撑了 c6 月 N 终端 kinase (JNK ) 的激活。Casticin 显著地增加了细胞内部的 ROS 的层次并且导致了 phosphorylated JNK 和 c6 月蛋白质的表示。有 N-acetylcysteine 和 SP600125 的预告的处理有效地在 HeLa 房间由 casticin 稀释了 apoptosis 的正式就职。而且, casticin 在另外的颈的癌症房间线导致了 ROS 生产和 apoptotic 房间死亡,例如 CasKi 和 SiHa。重要地, casticin 没在正常的人的外部血 mononuclear 房间和胚胎的肾上皮引起 ROS 的产生或 apoptosis 的正式就职 293 个房间。这些结果建议由 casticin 的 ROS 产生和持续 JNK 激活在导致 casticin 的 apoptosis 起一个作用并且提起有 casticin 的治疗可能作为对人的颈的癌症的新治疗有希望的可能性。 | Fanxiang Zeng Li Tian Fei Liu Jianguo Cao Meifang Quan Xifeng Sheng | 2012 | Acta Biochimica et Biophysica Sinica2012，44，5： | 9 |
| 2 | Adsorption of 17β-estradiol from aqueous solution by raw and direct/pre/post-KOH treated lotus seedpod biochar显示文摘Five biochars derived from lotus seedpod(LSP)were applied to examine and compare the adsorption capacity of 17β-estradiol(E2)from aqueous solution.The effect of KOH activation and the order of activation steps on material properties were discussed.The effect of contact time,initial concentration,p H,ionic strength and humic acid on E2 adsorption were investigated in a batch adsorption process.Experimental results demonstrated that the pseudo second-order model fitted the experimental data best and that adsorption equilibrium was reached within 20 hr.The efficiency of E2 removal increased with increasing E2 concentration and decreased with the increase of ionic strength.E2 adsorption on LSP-derived biochar(BCs)was influenced little by humic acid,and slightly affected by the solution p H when its value ranged from 4.0 to 9.0,but considerably affected at p H 10.0.Low environmental temperature is favorable for E2 adsorption.Chemisorption,π–πinteractions,monolayer adsorption and electrostatic interaction are the possible adsorption mechanisms.Comparative studies indicated that KOH activation and the order of activation steps had significant impacts on the material.Post-treated biochar exhibited better adsorption capacity for E2 than direct treated,pretreated,and raw LSP biochar.Pyrolyzed biochar at higher temperature improved E2 removal.The excellent performance of BCs in removing E2 suggested that BCs have potential in E2 treatment and that the biochar directly treated by KOH would be a good choice for the treatment of E2 in aqueous solution,with its advantages of good efficiency and simple technology. | Ni Liu Yunguo Liu Guangming Zeng Jilai Gong Xiaofei Tan Jun Wen Shaobo Liu Luhua Jiang Meifang Li Zhihong Yin | 2020 | Journal of Environmental Sciences2020，32，1： | 4 |
| 3 | The relationships among aerosol optical depth, ice, phytoplankton and dimethylsulfide and the implication for future climate in the Greenland Sea显示文摘The sea-to-air flux of dimethylsulphide(DMS) is one of the major sources of marine biogenic aerosol, and can have an important radiative impact on climate, especially in the Arctic Ocean. Satellite-derived aerosol optical depth(AOD) is used as a proxy for aerosol burden which is dominated by biogenic aerosol during summer and autumn. The spring sea ice melt period is a strong source of aerosol precursors in the Arctic. However, high aerosol levels in early spring are likely related to advection of continental pollution from the south(Arctic haze).Higher AOD was generally registered in the southern part of the study region. Sea ice concentration(SIC) and AOD were positively correlated, while cloud cover(CLD) and AOD were negative correlation. The seasonal peaks of SIC and CLD were both one month ahead of the peak in AOD. There is a strong positive correlation between AOD and SIC. Melting ice is positively correlated with chlorophyll a(CHL) almost through March to September,but negatively correlated with AOD in spring and early summer. Elevated spring and early summer AOD most likely were influenced by combination of melting ice and higher spring wind in the region. The peak of DMS flux occurred in spring due to the elevated spring wind and more melting ice. DMS concentration and AOD were positively correlated with melting ice from March to May. Elevated AOD in early autumn was likely related to the emission of biogenic aerosols associated with phytoplankton synthesis of DMS. The DMS flux would increase more than triple by 2100 in the Greenland Sea. The significant increase of biogenic aerosols could offset the warming in the Greenland Sea. | QU Bo GABRIC Albert J. ZHAO Li SUN Wenjing LI Hehe GU Peijuan JIANG Limei ZENG Meifang | 2018 | Acta Oceanologica Sinica2018，37，5： | 4 |
| 4 | In-cell infection: a novel pathway for Epstein-Barr virus infection mediated by cell-in-cell structures显示文摘 | Chao Ni Yuhui Chen Musheng Zeng Rongjuan Pei Yong Du Linquan Tang Mengyi Wang Yazhuo Hu Hanyu Zhu Meifang He Xiawei Wei Shan Wang Xiangkai Ning Manna Wang Jufang Wang Li Ma Xinwen Chen Qiang Sun Hong Tang Ying Wang Xiaoning Wang | 2015 | Cell Research2015，25，7： | 3 |
| 5 | CO flux of soil respiration in natural recovering karst abandoned farmland in Southwest China显示文摘To estimate carbon sequestration potential in the karst area,soil respiration in a natural recovering karst abandoned farmland in Shawan,Puding,Guizhou,southwest China was continuously and automatically monitored for more than two years.The results show that the CO2flux of soil respiration(2.63±1.89 lmol m^-2s-^1)is higher in the karst area than in non-karst areas under similar conditions but that regional value(1.32 lmol m-2s-1)is lower because of larger rock fragment coverage(~50%).A the same time,the temperature sensitivity of soil respiration(Q10)in this study area is significantly higher than that of non-karst areas under similar conditions.Soil respiration has an obvious temporal variation,which is reflected in a significant exponential relationship between soil respiration and soil temperature,but the relationship between soil respiration and soil moisture is very complex.Especially soil respiration has an obvious spatial variation,which is likely affected by different diffusion or water-rock reaction processes. | Yanwei Wang Weijun Luo Guangneng Zeng Hanling Yang Meifang Wang Yina Lyu Anyun Cheng Lin Zhang Xianli Cai Jia Chen Shijie Wang | 2020 | Acta Geochimica2020，39，4： | 2 |
| 6 | Polyaniline nanostructures tuning with oxidants in interfacial polymerization system显示文摘Three kinds of nanostructured polyanilines(PANIs) were prepared through interfacial polymerization by using ammonium persulfate(APS) as a single oxidant,and APS/FeCl_3,APS/K_2Cr_2O_7 as composite oxidants,respectively.It is observed that faster formation process and higher yield of nanostructured PANIs could be achieved in the presence of FeCl_3 and K_2Cr_2O_7.The as-prepared PANIs were characterized by field emission scanning electron microscopy,ultraviolet-visible absorption spectroscopy,Fourier transform infrared and Raman spectroscopy,X-ray diffraction analysis and electrochemical measurements including cyclic voltammetry and galvanostatic charge/discharge measurement.The influence of composite oxidants on the morphology,microstructure,and electrical and electrochemical properties of PANIs was discussed.Interestingly,when APS/K_2Cr_2O_7 was used as the composite oxidants,PANI exhibited petal-like structure with high yield of 57.35%instead of general nanofibrous morphology formed in interfacial polymerization.Compared with those nanofibrous PANIs obtained by using APS as a single oxidant or APS/FeCl_3 as composite oxidants,petal-like PANIs exhibited the largest specific capacitance(692.4 F/g at scan rate of 5 mV/s) and highest cycle stability among them.It provides a new insight into the control of PANI nanostructures with high yield and energy storage ability by simply selecting suitable composite oxidants in interfacial polymerization. | Fanxin Zeng Zongyi Qin Banglei Liang Tao Li Na Liu Meifang Zhu | 2015 | Progress in Natural Science:Materials International2015，25，5： | 0 |
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