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| 1 | Cycloastragenol upregulates SIRT1 expression,attenuates apoptosis and suppresses neuroinflammation after brain ischemia显示文摘Cycloastragenol(CAG)is the active form of astragaloside V isolated from Astragalus Radix,which displays multiple pharmacological effects.Silent information regulator 1(SIRT1),a classll histone deacetylase,has been shown to play an important role in neuroprotection against cerebral ischemia.In this study,we investigated whether CAG protected against ischemic brain injury and,if so,whether the beneficial effects were associated with the regulation of SIRT1 in the ischemic brain.Mice were subjected to 45 min of middle cerebral artery occlusion(MCAO)followed by reperfusion.CAG(5,10,20 mg/kg)was injected intraperitoneally at the onset of reperfusion,12h later and then twice daily for up to three days.CAG dose-dependently reduced brain infarct volume,significantly ameliorated functional deficits,and prevented neuronal cell oss in MCAO mice.Meanwhile,CAG signicantly reduced matrix metalloproteinase-9 activity,prevented tight junction degradation and subsequently ameliorated blood-brain barier disruption.Moreover,CAG significantly upregulated SIRT1 expression in the ischemic brain but did not directly activate its enzymatic activity.Concomitant with SIRT1 upregulation,CAG reduced p53 acetylation and the ratio of Bax to Bcl-2 in the ischemic brain.CAG also inhibited NF-κB p65 nuclear translocation.As a result,CAG suppressed the mRNA expression of pro-inflammatory cytokines,including TNF-α and IL-1β,and inhibited the activation of microglia and astrocytes in the ischemic brain.Our findings suggest that CAG is neuroprotective against ischemic brain injury in mice and that its beneficial effect may involve SIRT1 upregulation and the inhibition of apoptosis and neuroinflammation in the ischemic brain. | Man Li Shichun Li Bao-kai Dou Yving-xiang Zou Hao-zhen Han Dong-xiang Liu Zunji Ke Zhi-fei Wang | 2020 | Acta Pharmacologica Sinica2020，41，8： | 22 |
| 2 | Experimental investigation into stress-relief characteristics with upward large height and upward mining under hard thick roof显示文摘 | Ke Yang Xiang He Litong Dou Wenjun Liu Li Sun Haisong Ye | 2015 | International Journal of Coal Science & Technology2015，2，1： | 20 |
| 3 | Observation of atmospheric nitrous acid with DOAS in Beijing, China显示文摘Measurements of nitrous acid(HONO) and nitrogen dioxide(NO2) in Beijing City have been performed by means of a developed differential optical absorption spectroscopy(DOAS) system based on photodiode array(PDA), during the autumn of 2004. HONO and NO2 were simultaneously identified by their characteristic absorption bands in the spectral region between 337 nm and 372 nm with high sensibility and time resolution. The concentrations of HONO exhibit obviously diurnal variation with a nocturnal maximum and a daytime minimum. The highest HONO value up to 11.8 ?滋g/m3 was observed during the night of 2/3 September. Possible sources of the observed HONO were discussed. Good correlation to NO2 indicates that NO2 is a main source component. The measurement also shows direct emission of HONO is an important source in strongly polluted urban area. | QIN Min XIE Pin-hua LIU Wen-qing LI Ang DOU Ke FANG Wu LIU Jian-guo ZHANG Wei-jun | 2006 | Journal of Environmental Sciences2006，18，1： | 15 |
| 4 | Inhibitory Activity of Honeysuckle Extracts against Influenza A Virus In Vitro and In Vivo显示文摘Honeysuckle has been used in the treatment of influenza virus infection for thousands of years in China.However,its main active components and the functional mechanisms remain to be elucidated.Here,four honeysuckle extracts,including acids extract,flavonoids extract,total extract and acids-flavonoids mixture,were prepared to clarify the main active antiviral components.The cytopathic effect reduction assay showed that all the four extracts inhibited the replication of influenza viruses H1N1,H3N2 and the oseltamivir-resistant mutant strain H1N1-H275Y.The acids-flavonoids mixture had the strongest inhibitory effects in vitro with EC_(50) values of 3.8,4.1,and >20 lg/m L against H1N1,H3N2 and H1N1-H275Y,respectively,showing competitive antiviral activity with oseltamivir and ribavirin.Honeysuckle acids extract also showed the most significant antiviral activity in vivo.Oral administration of the acids extract at a dosage of 600 mg/kg/d effectively alleviated viral pneumonia,maintained body weight and improved the survival rate to 30% of the mice infected with a lethal dose of H1N1.The results of time-of-drug addition experiment and neuraminidase (NA) inhibition assay showed that honeysuckle extracts had a broad-spectrum inhibitory effect against influenza virus NAs.The flavonoid extract showed the strongest inhibitory effect on the NA of influenza virus H7N9 with an IC_(50) of 24.7 lg/m L.These results suggested that these extracts might exert their antiviral activity by suppressing the release of influenza viruses.Briefly,our findings demonstrate that acids and flavonoids extracts of honeysuckle are the major antiviral active components,and the acids extract has the potential to be developed into an antiviral agent against influenza virus,especially for oseltamivirresistant viruses. | Mengwei Li Yuxu Wang Jing Jin Jie Dou Qinglong Guo Xue Ke Changlin Zhou Min Guo | 2021 | Virologica Sinica2021，36，3： | 11 |
| 5 | Mitosis-specific acetylation tunes Ran effector binding for chromosome segregation显示文摘在房间期间,分割要求忠诚有丝分裂的锭子汇编和染色体分离的基因信息的稳定的传播。运用了 GTPase 戏在有丝分裂的锭子汇编的一个关键角色。然而,在锭子的 Ran-GTP 的一个化学坡度的产生怎么被联合到有丝分裂的 translational 以后修正,从来没被描绘过。这里,我们解决了复杂结构与核苷酸版本因素 Mog1 跑了并且描出一个新奇有丝分裂特定的调整 acetylation 的 Ran-Mog1 相互作用在染色体分离期间。我们的指导结构的功能的分析表明那 Mog1 与 RCC1 竞争为以一种 GTP/GDP-dependent 方式变有约束力。生物化学的描述表明了那 Mog1 固定跑阻止 RCC1 有约束力、随后的 GTP 装载。令人惊讶地,跑了是 TIP60 的真正的底层,并且由 TIP60 的 Lys134 的 acetylation 解放 Mog1 从在有丝分裂期间变有约束力。重要地,这个得到 acetylation 的开关对 RCC1 变有约束力支持 Ran-GTP 的高水平,它为染色体排列是必要的。这些结果建立一以前 TIP60 由调节在提供 Ran-GTP 水平的 homeostatic 控制的规章的机制运用了的 uncharacterized 为在有丝分裂的染色体分离的受动器绑定。 | Xiaoling Bao Heng Liu Xing Liu Ke Ruan Yonshui Zhang Zhiyong Zhang Qi Hu Ying Liu Saima Akram Jiahai Zhang Qingguo Gong Wenwen wang Xiao Yuan Jian-Li Lingli Zhao Zhen Dou Ruijun Tian Xuebiao Yao Jihui Wu Yunyu Shi | 2018 | Journal of Molecular Cell Biology2018，10，1： | 8 |
| 6 | Inhibitory effects of EGFR antisense oligodeoxynucleotide in human colorectal cancer cell line显示文摘INTRODUCTIONEpidermal-growth-factor receptor(EGFR) is apolypeptide with 1186 amino acids,which binds toEGF family growth factors.Two major naturalligands in the family interact with EGFR:one isEGF,the other is transforming growth factor-α(TGF-α).When EGF or TGF-α,binds to EGFR,tyrosine kinase activity is induced which in turntriggers a series of events regulating the cellgrowth.The importance of EGFR in growthregulating pathways was confirmed by the fact | Yong He Jun Zhou Jin Sheng Wu Ke Feng Dou | 2000 | World Journal of Gastroenterology2000，6，5： | 5 |
| 7 | Two new compounds from Zingiber officinale显示文摘新周期的 diarylheptanoid, 1,5-epoxy-3-hydroxy-1-(3-methoxy-4,5-dihydroxyphenyl )-7-(4-hydroxyphenyl)-heptane (1 ) ,以及新单音的萜烯, 10-O- β - d-glucopyranosyl-hydroxy cineole (2 ) 从姜 officinale 的根茎被孤立。混合物的结构 1 和 2 被建立基于他们的光谱数据。另外,这些混合物的抗氧化剂活动也被测量。 | Yu Zhao Qiao Feng Tao Rong Ping Zhang Chang Xin Zhou Hui Dou Shu Yun Shi Ye Cheng Xiao Lian Li Sun Su Zeng Ke Xin Huang Xiao Dong Zhang Xiao Kun Li | 2007 | Chinese Chemical Letters2007，18，10： | 4 |
| 8 | Comprehensive analysis of chemical constituents in Xingxiong injection by high performance liquid chromatography coupled with mass spectrometry显示文摘Xingxiong injection(XXI) is a widely used Chinese herbal formula prepared by the folium ginkgo extract and ligustrazine for the treatment of cardiovascular and cerebrovascular diseases. Compared with the pharmacological studies, chemical analysis and quality control studies on this formula are relatively limited. In the present study, a high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry(HPLC-QTOF MS) method was applied to comprehensive analysis of constituents in XXI. According to the fragmentation rules and previous reports, thirty ginkgo flavonoids, four ginkgo terpene lactones, and one alkaloid were identified. A high performance liquid chromatography coupled with triple quadrupole mass spectrometry(HPLC-QQQ MS) method was then applied to quantify ten major constituents in XXI. The method validation results indicated that the developed method had desirable specificity, linearity, precision and accuracy. The total contents of ginkgo flavonoids were about 22.05-25.51 μg·mL-1 and the ginkgo terpene lactones amounts were about 4.41-8.70 μg·m L-1 in six batches of XXI samples, respectively. Furthermore, cosine ratio algorithm and distance measurements were employed to evaluate the similarity of XXI samples, and the results demonstrated a high-quality consistency. This work could provide comprehensive information on the quality control of Xingxiong injection, which be helpful in the establishment of a rational quality control standard. | GUO Long DOU Li-Li DUAN Li LIU Ke BI Zhi-Ming LI Ping LIU E-Hu | 2015 | Chinese Journal of Natural Medicines2015，13，9： | 4 |
| 9 | Mitotic motor CENP-E cooperates with PRC1 in temporal control of central spindle assembly显示文摘Error-free cell division depends on the accurate assembly of the spindle midzone from dynamic spindle microtubules to ensure chromatid segregation during metaphase-anaphase transition.However,the mechanism underlying the key transition from the mitotic spindle to central spindle before anaphase onset remains elusive.Given the prevalence of chromosome instability phenotype in gastric tumorigenesis,we developed a strategy to model context-dependent cell division using a combination of light sheet microscope and 3D gastric organoids.Light sheet microscopic image analyses of 3D organoids showed that CENP-E inhibited cells undergoing aberrant metaphase-anaphase transition and exhibiting chromosome segregation errors during mitosis.Highresolution real-time imaging analyses of 2D cell culture revealed that CENP-E inhibited cells undergoing central spindle splitting and chromosome instability phenotype.Using biotinylated syntelin as an affinity matrix,we found that CENP-E forms a complex with PRC1 in mitotic cells.Chemical inhibition of CENP-E in metaphase by syntelin prevented accurate central spindle assembly by perturbing temporal assembly of PRC1 to the midzone.Thus,CENP-E-mediated PRC1 assembly to the central spindle constitutes a temporal switch to organize dynamic kinetochore microtubules into stable midzone arrays.These findings reveal a previously uncharacterized role of CENP-E in temporal control of central spindle assembly.Since CENP-E is absent from yeast,we reasoned that metazoans evolved an elaborate central spindle organization machinery to ensure accurate sister chromatid segregation during anaphase and cytokinesis. | Xu Liu Leilei Xu Junying Li Phil Y.Yao Wanjuan Wang Hazrat Ismail Haowei Wang Bryce Liao Zhihong Yang Tarsha Ward Ke Ruan Jianchun Zhang Quan Wu Ping He Xia Ding Dongmei Wang Chuanhai Fu Zhen Dou Feng Yan Wenwen Wang Xing Liu Xuebiao Yao | 2020 | Journal of Molecular Cell Biology2020，12，8： | 3 |
| 10 | Astragaloside Ⅳ suppresses post-ischemic natural killer cell infiltration and activation in the brain:involvement of histone deacetylase inhibition显示文摘Natural killer(NK)cells,a type of cytotoxic lymphocytes,can infiltrate into ischemic brain and exacerbate neuronal cell death.Astragaloside Ⅳ(ASIV)is the major bioactive ingredient of Astragalus membranaceus,a Chinese herbal medicine,and possesses potent immunomodulatory and neuroprotective properties.This study investigated the effects of ASIV on post-ischemic brain infiltration and activation of NK cells.ASIV reduced brain infarction and alleviated functional deficits in MCAO rats,and these beneficial effects persisted for at least 7 days.Abundant NK cells infiltrated into the ischemic hemisphere on day 1 after brain ischemia,and this infiltration was suppressed by ASIV.Strikingly,ASIV reversed NK cell deficiency in the spleen and blood after brain ischemia.ASIV inhibited astrocyte-derived CCL2 upregulation and reduced CCR2+NK cell levels in the ischemic brain.Meanwhile,ASIV attenuated NK cell activating receptor NKG2D levels and reduced interferon-γproduction.ASIV restored acetylation of histone H3 and the p65 subunit of nuclear factor-κB in the ischemic brain,suggesting inhibition of histone deacetylase(HDAC).Simultaneously,ASIV prevented p65 nuclear translocation.The effects of ASIV on reducing CCL2 production,restoring acetylated p65 levels and preventing p65 nuclear translocation were mimicked by valproate,an HDAC inhibitor,in astrocytes subjected to oxygen-glucose deprivation.Our findings suggest that ASIV inhibits post-ischemic NK cell brain infiltration and activation and reverses NK cell deficiency in the periphery,which together contribute to the beneficial effects of ASIV against brain ischemia.Furthermore,ASIV’s effects on suppressing NK cell brain infiltration and activation may involve HDAC inhibition. | Baokai Dou Shichun Li Luyao Wei Lixin Wang Shiguo Zhu Zhengtao Wang Zunji Ke Kaixian Chen Zhifei Wang | 2021 | Frontiers of Medicine2021，15，1： | 3 |
| 11 | Three new diarylheptanoids and their antioxidant property显示文摘三新 diarylheptanoids,即,钠(5S,2E )-1,7-bis(4-hydroxyphenyl)-1-hydroxy-2-hepten-5-sulfonate (1 ) ,钠(5R,2E )-1,7-bis(4-hydroxyphenyl)-1-hydroxy-2-hepten-5-sulfonate (2 ) 和 3,5-diacetoxy-1-(3-methoxy-4,5-dihydroxyphenyl )-7-(4-hydroxy-3-methoxyphenyl)heptane (3 ) 从姜 officinale 的根茎被孤立。新混合物的结构根据分光镜的方法被阐明。3 的抗氧化剂活动在包含 DPPH 自由激进分子和超级氧化物阴离子激进分子的 vitro 模型旁边是 assayed。 | Chang Xin Zhou Xiang Yi Zhang Xiao Wu Dong Qiao Feng Tao Hui Dou Rong Ping Zhang Ke Xin Huang Xiao Kun Li Chang Xiang Chen Su Zeng Yu Zhao | 2007 | Chinese Chemical Letters2007，18，10： | 2 |
| 12 | Determination of pKa values of alendronate sodium in aqueous solution by piecewise linear regression based on acid-base potentiometric titration显示文摘As a mono-sodium salt form of alendronic acid,alendronate sodium presents multi-level ionization for the dissociation of its four hydroxyl groups.The dissociation constants of alendronate sodium were determined in this work by studying the piecewise linear relationship between volume of titrant and p H value based on acidbase potentiometric titration reaction.The distribution curves of alendronate sodium were drawn according to the determined p Ka values.There were 4 dissociation constants(pKa_1=2.43,pKa_2=7.55,pKa_3=10.80,pKa_4=11.99,respectively) of alendronate sodium,and 12 existing forms,of which 4 could be ignored,existing in different p H environments. | Jing Ke Hanfei Dou Ximin Zhang Dushimabararezi Serge Uhagaze Xiali Ding Yuming Dong | 2016 | Journal of Pharmaceutical Analysis2016，6，6： | 2 |
| 13 | High expression of cyclooxygenase-2 in uterine fibroids and its correlation with cell proliferation显示文摘 | Ke X Dou F Cheng Z | | 0，，： | 1 |
| 14 | Fabrication and Characterization of Nanopillar-Like HA Coating on Porous Ti6Al4V Scaffold by a Combination of Alkali–Acid-Heat and Hydrothermal Treatments显示文摘Porous titanium scaffold with suitable porous architecture exhibits enormous potentials for bone defect repairs.However,insufficient osteointegration and osteoinduction still remain to open as one of the major problems to achieve satisfactory therapeutic effect.To solve this problem,many studies have been carried out to improve the bioactivity of porous titanium scaff old by surface modifications.In this study,porous Ti6Al4V scaff olds were fabricated using additive manufacturing technique.Porous architectures were built up based on a diamond pore structure unit.Alkali–acid-heat(AH)treatment was applied to create a TiO2 layer on the porous Ti6Al4V scaff old(AH-porous Ti6Al4V).Subsequently,a hydrothermal treatment was employed to enable the formation of HA coating with nanopillar-like morphology on the alkali–acid-heat-treated surface(HT/AH-porous Ti6Al4V).The effects of surface modifications on apatite-forming ability,protein adsorption,cell attachment,cell proliferation and osteogenic gene expression were studied using apatite-forming ability test,protein adsorption assay and in vitro cell culture assay.It was found that the HT/AH-porous Ti6Al4V exhibited the highest apatite formation ability and best affinity to fibronectin and vitronectin.In vitro studies indicated that the mesenchymal stem cells(MSCs)cultured on the HT/AH-porous Ti6Al4V presented improved adhesion and differentiation compared with the porous Ti6Al4V and AH-porous Ti6Al4V. | Jun-Lei Li Shuai Wang Fang Cao Xiao Lin Xiao-Wei Wei Zhen-Hua Zhao Xiao-Jie Dou Wei-Ting Yu Ke Yang De-Wei Zhao | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，9： | 1 |
| 15 | On the Index of Fredholm Pairs of Idempotents显示文摘 | Yue Qing WANG Hong Ke DU Yan Ni DOU | 2009 | Acta Mathematica Sinica,English Series2009，25，4： | 1 |
| 16 | Fracture behavior and acoustic emission characteristics of sandstone samples with inclined precracks显示文摘Sandstone samples with precracks of different dip angles were collected from a coal mine roof and subjected to uniaxial compression tests,and acoustic emission(AE)and scanning electron microscopy(SEM)were used to study how the crack dip angle affected the fracture mechanism.In the precracked sandstone samples,as the dip angle between the crack line and loading direction decreased,so did the peak stress and its completion time.The SEM observations revealed a fracture transition from tensile cleavage to shear slip,which was manifested by a microstructure change from aggregate to staggered.According to energy conversion,a decreased crack dip angle results in gradually decreasing total and dissipative peak energies,whose variation amplitudes at different stages are consistent with those of the peak stress of the samples.The decreased crack dip angle lowered the stress required to trigger the first appearance of AE energy peaks and ring-down counts,as well as shortening the period before the occurrence of the first AE peak signal.However,the AE energy and ring-down count during the failure stage after the stress peak increased gradually.A stepped increase was observed in the AE ring-down count curves,with each step corresponding to a jump in the stress-strain curve.From the characteristics of the AE signal of the fracture of a precracked rock sample,the occurrence of joints or faults in the rock mass can be reasonably inferred.This is expected to provide a new method and approach for predicting coal and rock dynamic disasters. | Litong Dou Ke Yang Xiaolou Chi | 2021 | International Journal of Coal Science & Technology2021，8，1： | 1 |
| 17 | Influence ofexperimental parameters and the copolymer structure on the sizecontrol of nanospheres in double emulsion method显示文摘 | Xu Bin Dou HongJing Tao Ke | 2011 | Journal ofPolymer Research2011，18，1： | 1 |
| 18 | 显示文摘 | Tao Ke Dou Hongjing Sun Kang | 2006 | Collids and Surfaces2006，206，： | 1 |
| 19 | High expression of cyclooxygen- ase-2 in uterine fibroids and its correlation with cell prolifera- tion 显示文摘 | Ke X Dou F Cheng Z | 2013 | Eur J Obstet Gynecol Reprod Biol2013，168，： | 1 |
| 20 | The first local case of mpox caused by an imported case in the Chinese mainland显示文摘Monkeypox (mpox) is a zoonotic disease caused by the mpox virus (MPXV) that has been primarily limited to Central and West African nations since its discovery. The recent spread of the West African lineage of MPXV in historically unaffected countries has raised concerns for global public health. Despite a significant decrease in global mpox cases, there is still a risk of a global resurgence. This study reports the first local case of mpox caused by an imported case in the Chinese mainland. Polymerase chain reaction (PCR) diagnosed the two cases, and the viral genomes were obtained by next-generation sequencing. Genomic analysis revealed that the two strains shared an identical genome sequence and belonged to the B.1.3 branch of the West African lineage, which is the first local case of mpox caused by an imported case in the Chinese mainland, highlighting the potential threat of mpox in China and the immediate need for adequate surveillance measures. | Daitao Zhang Xiao Qi Fu Li Yanhui Chu Ke Wu Jia Li Xin Meng Xiangfeng Dou Zhenyong Ren Haoyuan Jin Shuang Li Yulan Sun Yanwei Chen Renqing Li Dan Li Weihong Li Yang Yang Yang Pan Wenjie Tan Quanyi Wang | 2023 | Biosafety and Health2023，5，4： | 1 |
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