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    题名 作者 年代 出处 被引量
1Effect of hepatitis C virus infection on expression of several cancer-associated gene products in hepatocellular carcinoma显示文摘NTRODUCTIONOurpreviousstudiesbyseroepidemiological,molecularepidemiologicalandimmunopathologicalmethodshaverevealedthathepa...YANG Jian Min, WANG Rong Quan, BU Bao Guo, ZHOU Zi Cheng, FANG Dian Chun and LUO Yuan Hui 1999World Journal of Gastroenterology1999,5,1:42
2Regulation of the cell cycle gene, BTG2, by miR-21 in human laryngeal carcinoma显示文摘MicroRNAs 是否定地在 post-transcriptional 水平调制基因表示的短规章的 RNA,并且深深地涉及癌症的几种类型的致病。调查特定的 miRNAs 和他们的目标基因是否参予喉的癌的分子的致病, oligonucleotide microarrays 被用来与正常纸巾相比在喉的癌纸巾估计 microRNAs 和 mRNAs 的微分表示侧面。oncogenic miRNA, microRNA-21 (miR-21 ) ,被发现是在喉的癌纸巾的 upregulated。由特定的 antisense oligonucleotides 的 miR-21 击倒而 miR-21 的 overexpression 提高了细胞的生长活动,由殖民地形成试金检测了,禁止了 HEp-2 细胞的增长潜力。miR-21 抑制引起的房间数字减小由于 G1-S 阶段转变的控制的损失,而不是 apoptosis 的显著增加。随后, miR-21 的新目标基因, BTG2,被发现是在喉的癌纸巾的 downregulated。BTG2 被知道充当一个平底锅房间周期管理者和肿瘤 suppressor。这些调查结果显示 miR-21 的那异常表情可以由维持 BTG2 的底层贡献喉的癌的恶意的显型。oncogenic miR-21 和它的目标基因的鉴定, BTG2,为癌症诊断和治疗在喉的癌是潜在地珍贵的。Min Liu Haidong Wu Tao Liu Yixuan Li Fang Wang Haiying Wan Xin Li Hua Tang 2009Cell Research2009,19,7:40
3Sevoflurane postconditioning reduces myocardial reperfusion injury in rat isolated hearts via activation of PI3K/Akt signaling and modulation of Bcl-2 family proteins显示文摘Sevoflurane postconditioning reduces myocardial infarct size.The objective of this study was to examine the role of the phosphatidylinositol-3-kinase(PI3K)/Akt pathway in anesthetic postconditioning and to determine whether PI3K/Akt signaling modulates the expression of pro-and antiapoptotic proteins in sevoflurane postconditioning.Isolated and perfused rat hearts were prepared first,and then randomly assigned to the following groups:Sham-operation(Sham),ischemia/reperfusion(Con),sevoflurane postconditioning(SPC),Sham plus 100 nmol/L wortmannin(Sham+Wort),Con+Wort,SPC+Wort,and Con+dimethylsulphoxide(DMSO).Sevoflurane postconditioning was induced by administration of sevoflurane(2.5%,v/v) for 10 min from the onset of reperfusion.Left ventricular developed pressure(LVDP),left ventricular end-diastolic pressure(LVEDP),maximum increase in rate of LVDP(+dP/dt),maximum decrease in rate of LVDP(?dP/dt),heart rate(HR),and coronary flow(CF) were measured at baseline,R30 min(30 min of reperfusion),R60 min,R90 min,and R120 min.Creatine kinase(CK) and lactate dehydrogenase(LDH) were measured after 5 min and 10 min reperfusion.Infarct size was determined by triphenyltetrazolium chloride staining at the end of reperfusion.Total Akt and phosphorylated Akt(phospho-Akt),Bax,Bcl-2,Bad,and phospho-Bad were determined by Western blot analysis.Analysis of variance(ANOVA) and Student-Newman-Keuls' test were used to investigate the significance of differences between groups.The LVDP,±dP/dt,and CF were higher and LVEDP was lower in the SPC group than in the Con group at all points of reperfusion(P<0.05).The SPC group had significantly reduced CK and LDH release and decreased infarct size compared with the Con group [(22.9±8)% vs.(42.4±9.4)%,respectively;P<0.05].The SPC group also had increased the expression of phospho-Akt,Bcl-2,and phospho-Bad,and decreased the expression of Bax.Wortmannin abolished the cardioprotection of sevoflurane postconditioning.Sevoflurane postconditioning may protect the isolated rat heart.Activation of PI3K and modulation of the expression of pro-and antiapoptotic proteins may play an important role in sevoflurane-induced myocardial protection.Li-na YU Jing YU Feng-jiang ZHANG Mei-juan YANG Ting-ting DING Jun-kuan WANG Wei HE Tao FANG Gang CHEN Min YAN 2010Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2010,11,9:36
4Analysis of gene expression profile induced by EMP-1 in esophageal cancer cells using cDNA Microarray显示文摘AIM: To obtain human esophageal cancer cell EC9706 stably expressed epithelial membrane protein-1 (EMP-1) with integrated eukaryotic plasmid harboring the open reading frame (ORF) of human EMP-1, and then to study the mechanism by which EMP-1 exerts its diverse cellular action on cell proliferation and altered gene profile by exploring the effect of EMP-1.METHODS: The authors first constructed pcDNA3.1/mychis expression vector harboring the ORF of EMP-1 and then transfected it into human esophageal carcinoma cell line EC9706. The positive clones were analyzed by Western blot and RT-PCR. Moreover, the cell growth curve was observed and the cell cycle was checked by FACS technique. Using cDNA microarray technology, the authors compared the gene expression pattern in positive clones with control. To confirm the gene expression profile, semi-quantitative RT-PCR was carried out for 4 of the randomly picked differentially expressed genes. For those differentially expressed genes,classification was performed according to their function and cellular component.RESULTS: Human EMP-1 gene can be stably expressed in ECg706 cell line transfected with human EMP-1. The authors found the cell growth decreased, among which S phase was arrested and G1 phase was prolonged in the transfected positive clones. By cDNA microarray analysis, 35 genes showed an over 2.0 fold change in expression level after transfection, with 28 genes being consistently up-regulated and 7 genes being down-regulated. Among the classified genes, almost half of the induced genes (13 out of 28 genes) were related to cell signaling, cell communication and particularly to adhesion.CONCLUSION: Overexpression of human EMP-1 gene can inhibit the proliferation of EC9706 cell with S phase arrested and G1 phase prolonged. The cDNA microarray analysis suggested that EMP-1 may be one of regulators involved incell signaling, cell communication and adhesion regulators.Hai-Tao Wang Jian-Ping Kong Fang Ding Xiu-Qin Wang Ming-Rong Wang Lian-Xin Liu Min Wu Zhi-Hua Liu National Laboratory of Molecular Ontology, Cancer Institute, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100021, China 2003World Journal of Gastroenterology2003,9,3:31
5The characteristics of atmospheric CO_2 concentration variation of four national background stations in China显示文摘Atmospheric carbon dioxide is an important kind of greenhouse gas which influences global temperature. Its concentration variation could indicate the distribution of human and natural activities in various regions. Through the non-dispersive infrared method, flask sampling of atmospheric CO2 concen- tration was measured weekly at four national background stations including Waliguan, Shangdianzi, Lin’an, and Longfengshan. Based on the data collected from September 2006 to August 2007, along with the Waliguan station’s experience on in situ observational data processing, the selection methods for sampling data through the atmospheric background CO2 concentration analysis were preliminarily discussed. On the basis of this result, the variation features of the four typical regions’ atmospheric background CO2 concentration was analyzed for the first time. The results show that the atmospheric CO2 concentration at Waliguan, Shangdianzi, Lin’an, and Longfengshan is 383.5, 385.9, 387.8, and 384.3 ppm, respectively. During the research period, CO2 concentration at the Waliguan station changed slightly. However, the CO2 concentration changed sharply at the Shangdianzi and the Lin’an stations due to the great influence of human activities in the Jingjinji and the Changjiang Delta economic zones, and changed regularly with seasons at Longfengshan station under dual influences of human activities and plant photosynthesis. The results from this study can lay the foundation for more profound studies on atmospheric CO2 concentration level of different areas in China, and could be used to improve the understanding of carbon source and sink distribution.LIU LiXin, ZHOU LingXi, ZHANG XiaoChun, WEN Min, ZHANG Fang, YAO Bo & FANG ShuangXi Key Laboratory for Atmospheric Chemistry, Centre for Atmosphere Watch and Services (CAWAS), Chinese Academy of Meteoro- logical Sciences (CAMS), China Meteorological Administration (CMA), Beijing 100081, China 2009Science China Earth Sciences2009,52,11:26
6Second harmonic generation in a high-Q lithium niobate microresonator fabricated by femtosecond laser micromachining显示文摘We report on second harmonic generation(SHG) in on-chip high-Q(>105) lithium niobate(Li Nb O3, LN) microresonators fabricated by femtosecond laser micromachining. We examine the efficiency of SHG with either a continuous-wave(CW) or an ultrashort pulsed pump laser. The normalized conversion efficiencies of SHG obtained with the CW and pulsed pump lasers are measured to be 1.35×10?5 m W?1 and 2.30×10?6 m W?1, respectively.LIN JinTian XU YingXin FANG ZhiWei WANG Min WANG NengWen QIAO LingLing FANG Wei CHENG Ya 2015Science China(Physics,Mechanics & Astronomy)2015,58,11:25
7Charlson comorbidity index helps predict the risk of mortality for patients with type 2 diabetic nephropathy显示文摘研究目的:探讨Charlson合并症指数(CCI)对2型糖尿病肾病死亡率的预测作用。研究方法:建立2型糖尿病肾病研究队列,根据CCI评分将患者合并症的严重程度分为三度:轻度(CCI1–2分)、中度(CCI 3–4分)、重度(CCI≥5分)。将影响死亡率的因素及按CCI分层后的组间差异指标进行Logistic回归分析及方差分析(ANOVA)。Kaplan-Meier生存曲线分析CCI指数对生存时间及死亡率的影响。重要结论:533例2型糖尿病肾病患者纳入研究。所有患者的CCI评分均大于1,44.7%(238/533)的患者死亡。患者的死亡率随CCI评分增加而增加,CCI 1–2分患者的死亡率为21.0%(50/238),CCI 3–4分患者的死亡率为56.7%(135/238),CCI≥5分患者的死亡率为22.3%(53/238)。Logistic回归分析显示CCI评分、血红蛋白和血浆白蛋白水平是患者死亡率的预测因子(P<0.05)。方差分析结果显示,与CCI评分相对较低的患者相比,CCI评分越高的患者其血红蛋白水平较低,而血清肌酐较高,死亡率也更高。Kaplan-Meier生存曲线显示CCI评分越高的患者生存时间越短。CCI评分是一种简单易行且实用的评估疾病合并症的方法,可用于预测2型糖尿病肾病患者的死亡率。关注2型糖尿病肾病患者的合并症将有利于早期、有效治疗及改善预后。You-qun HUANG Rong GOU Yong-shu DIAO Qing-hua YIN Wen-xing FAN Ya-ping LIANG Yi CHEN Min WU Li ZANG Ling LI Jing ZANG Lu CHENG Ping FU Fang LIU 2014Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2014,15,1:23
8A novel gene delivery system targeting cells expressing VEGF receptors显示文摘Two ligand oligopeptides GV1 and GV2 were designed according to the putative binding region of VEGF to its receptors. GV1, GV2 and endosome releasing oligopeptide HA20 were conjugated with poly-L-lysine or protamine and the resulting conjugates could interact with DNA in a noncovalent bond to form a complex. Using pSV2-β-galactosidase as a reporter gene, it has been demonstrated that exogenous gene was transferred into bovine aortic arch-derived endothelial cells (ABAE) andhuman malignant melanoma cell lines (A375) in vitro. In vivo experiments, exogenous gene was transferred into tumor vascular endothelial cells and tumor cells of subcutaneously transplanted human colon cancer LOVO, human malignant melanoma A375 and human hepatoma graft in nude mice. This system could also target gene to intrahepatically transplanted human hepatoma injected via portal vein in nude mice. These results are correlated with theGene delivery system targeting VEGF receptors relevant receptors (flt-1, flk-1/KDR) expression on the targeted cells and tissues.LI JUN MIN JUN SONG HAN YI HUANG PEI KUN TIAN SHU MIN QU MIN YAO HUI QIU JIANG DA FANG WAN JING CHU LUO CHENG XIAO GU JIAN REN GU( National Labomtory for Oncogenes and Related Genes, Shanghai Cancer Institute, Shanghai 200032,China)(National Laboratory of 1999Cell Research1999,9,1:22
9Diffusion tensor imaging detects Wallerian degeneration of the corticospinal tract early after cerebral infarction显示文摘To investigate the feasibility and time window of early detection of Wallerian degeneration in the corticospinal tract after middle cerebral artery infarction,23 patients were assessed using magnetic resonance diffusion tensor imaging at 3.0T within 14 days after the infarction.The fractional anisotropy values of the affected corticospinal tract began to decrease at 3 days after onset and decreased in all cases at 7 days.The diffusion coefficient remained unchanged.Experimental findings indicate that diffusion tensor imaging can detect the changes associated with Wallerian degeneration of the corticospinal tract as early as 3 days after cerebral infarction.Ruiman Xie Min Fang Linjiang Zhou Shanghua Fan Jianying Liu Hongbo Quan Man Luo Dongying Qiu 2012Neural Regeneration Research2012,7,12:20
10Small intestinal hemolymphangioma with bleeding:A case report显示文摘Small intestinal hemolymphangioma is a very rare benign tumor.There was only one report of a hemolymphangioma of the pancreas invading to the duodenum until March 2011.Here we describe the first case of small intestinal hemolymphangioma with bleeding in a 57-year-old woman.She presented with persistent gastrointestinal bleeding and endoscopy revealed a small intestinal tumor.Partial resection of the small intestine was thus performed and the final pathological diagnosis was hemolymphangioma.We also highlight the difficultly in making an accurate preoperative diagnosis in spite of modern imaging techniques.To arrive at a definitive diagnosis and exclude malignancy,partial resection of the small intestine was considered to be the required treatment.Yan-Fei Fang Li-Feng Qiu Ying Du Zhi-Nong Jiang Min Gao 2012World Journal of Gastroenterology2012,18,17:20
11Down-regulation of gut-enriched Krppel-like factor expression in esophageal cancer显示文摘AIM:Esophageal carcinoma is one of the most common malignant tumors in Chian.But the molecular mechanisms of esophageal cracinoma remains unclear.Gut-enriched Kruppel-like factor(GKLF)is a newly identified transcription factor which is expressed abandantly in the epithelial cells of the gastrointestinal tract and deregulation of GKLF was linked to several types of cancet.It is of interest to study the expression and role of GKLF in esophageal crcinoma.Nan Wang Zhi-Hua Liu Fang Ding Xiu-Qin Wang Chuan-Nong Zhou Min Wu,National Laboratory of Molecular Oncology,Cancer Institute,Chinese Academy of Medical Sciences,Beijing 100021,China 2002World Journal of Gastroenterology2002,8,6:20
12Effects of sevoflurane preconditioning and postconditioning on rat myocardial stunning in ischemic reperfusion injury显示文摘Ischemic preconditioning and postconditioning distinctly attenuate ventricular arrhythmia after ischemia without affecting the severity of myocardial stunning. Therefore,we report the effects of sevoflurane preconditioning and postconditioning on stunned myocardium in isolated rat hearts. Isolated rat hearts were underwent 20 min of global ischemia and 40 min of reperfusion. After an equilibration period (20 min),the hearts in the preconditioning group were exposed to sevoflurane for 5 min and next washout for 5 min before ischemia. Hearts in the sevoflurane postconditioning group underwent equilibration and ischemia,followed immediately by sevoflurane exposure for the first 5 min of reperfusion. The control group received no treatment before and after ischemia. Left ventricular pressure,heart rate,coronary flow,electrocardiogram,and tissue histology were measured as variables of ventricular function and cellular injury,respectively. There was no significant difference in the duration of reperfusion ventricular ar-rhythmias between control and sevoflurane preconditioning group (P=0.195). The duration of reperfusion ventricular arrhythmias in the sevoflurane postconditioning group was significantly shorter than that in the other two groups (P<0.05). ±(dP/dt)max in the sevoflurane preconditioning group at 5,10,15,20,and 30 min after reperfusion was sig-nificantly higher than that in the control group (P<0.05),and there were no significant differences at 40 min after reperfusion among the three groups (P>0.05). As expected,for a 20-min general ischemia,infarct size in heart slices determined by 2,3,5-triphenyltetrazolium chloride staining among the groups was not obvious. Sevoflurane postcon-ditioning reduces reperfusion arrhythmias without affecting the severity of myocardial stunning. In contrast,sevoflu-rane preconditioning has no beneficial effects on reperfusion arrhythmias,but it is in favor of improving ventricular function and recovering myocardial stunning. Sevoflurane preconditioning and postconditioning may be useful for correcting the stunned myocardium.An-lu DAI Li-hua FAN Feng-jiang ZHANG Mei-juan YANG Jing YU Jun-kuan WANG Tao FANG Gang CHEN Li-na YU Min YAN 2010Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2010,11,4:19
13Chemical characterization of size-resolved aerosols in four seasons and hazy days in the megacity Beijing of China显示文摘Size-resolved aerosol samples were collected by MOUDI in four seasons in 2007 in Beijing. The PM10 and PM1.8mass concentrations were 166.0 ± 120.5 and 91.6 ± 69.7 μg/m^3, respectively,throughout the measurement, with seasonal variation: nearly two times higher in autumn than in summer and spring. Serious fine particle pollution occurred in winter with the PM1.8/PM10 ratio of 0.63, which was higher than other seasons. The size distribution of PM showed obvious seasonal and diurnal variation, with a smaller fine mode peak in spring and in the daytime. OM(organic matter = 1.6 × OC(organic carbon)) and SIA(secondary inorganic aerosol) were major components of fine particles, while OM, SIA and Ca_2+were major components in coarse particles. Moreover, secondary components, mainly SOA(secondary organic aerosol) and SIA,accounted for 46%–96% of each size bin in fine particles, which meant that secondary pollution existed all year. Sulfates and nitrates, primarily in the form of(NH_4)_2SO_4, NH_4NO_3, Ca SO_4, Na_2SO_4 and K_2SO_4, calculated by the model ISORROPIA II, were major components of the solid phase in fine particles. The PM concentration and size distribution were similar in the four seasons on non-haze days, while large differences occurred on haze days, which indicated seasonal variation of PM concentration and size distribution were dominated by haze days. The SIA concentrations and fractions of nearly all size bins were higher on haze days than on non-haze days, which was attributed to heterogeneous aqueous reactions on haze days in the four seasons.Kang Sun Xingang Liu Jianwei Gu Yunpeng Li Yu Qu Junling An Jingli Wang Yuanhang Zhang Min Hu Fang Zhang 2015Journal of Environmental Sciences2015,27,6:19
14ANALYSIS OF SEEPAGE FLOW IN A CONFINED AQUIFER WITH A STANDING COLUMN WELL显示文摘The standing column well for ground source heat pump systems is a promising technology with high efficiency and environmental benefit, where groundwater is drawn from the bottom of a well and then re-injected to its top after transferring heat with heat pumps. Heat transfer analysis of great significance and aquifer involves complex problems. Determining the groundwater seepage flow is a precondition to solve the energy equation describing the heat transfer of the system. Only when piezometric head is obtained, the seepage velocity can be determined according to Darcy’s law. In this article the groundwater seepage flow in an axial symmetrical geometry was studied under the assumption that gross groundwater flow is neglected. An analytical solution of the groundwater seepage flow for a confined aquifer was acquired by using the integral transform method, which may provide a foundation for heat transfer analysis of the standing column well system.LI Min DIAO Nai-ren FANG Zhao-hong 2007Journal of Hydrodynamics2007,19,1:19
15Gait analysis of patients with knee osteoarthritis before and after Chinese massage treatment显示文摘The objective of this study was to evaluate the effectiveness of Chinese massage therapy in patients with knee osteoarthritis(OA) by measuring lower-limb gait parameters. We recruited 20 women with knee OA,who then underwent Chinese massage therapy three times per week for 2 weeks. The patients underwent gait evaluation using a six-camera infrared motion analysis system. They completed Western Ontario and Mc Master Universities Osteoarthritis Index questionnaires before and after treatment. We calculated the forward speed,step width,step length,total support time percentage,initial double support time percentage,and single support time percentage. We also measured the angles at the knee,hip,and ankle during the stance phase of walking. The results showed statistically significant mean differences in knee pain relief,alleviation of stiffness,and physical function enhancement after therapy(P < 0.05). The patients gained significantly faster gait speed,greater step width,and increased total support time percentage after the Chinese massage therapy(P < 0.05). There were no significant differences in the range of motion or initial contact angles of the knee,hip,or ankle during the stance phase of walking. We concluded that Chinese massage is a beneficial complementary treatment and an alternative therapy choice for patients with knee OA for short-term pain relief. Chinese massage may improve walking ability for these patients.Zhu Qingguang Fang Min Gong Li Jiang Shuyun Sun Wuquan Li Jianhua Li Yong 2015Journal of Traditional Chinese Medicine2015,35,4:16
16Degradation of chlorpyrifos alone and in combination with chlorothalonil and their effects on soil microbial populations显示文摘在实践,杀虫剂通常为庄稼保护同时或一个接一个被使用,并且这类杀虫剂申请经常在土壤环境导致杀虫剂残余的联合污染。实验室研究被进行在土壤上在 chlorpyrifos 降级和它的效果上调查 chlorothalonil 的影响细菌,真菌,并且放射菌类人口。在这里的试验性的条件下面, chlorpyrifos 的一半生活独自,并且在有 chlorothalonil 的联合,在推荐并且两倍剂量,被测量分别地是 3.24, 2.77,和 2.63 d。Chlorpyrifos 降级没被它的联合显著地与 chlorothalonil 改变。然而,土壤微生物上的 chlorpyrifos 的禁止的效果被它的联合与 chlorothalonil 增加,并且增加与增加的 chlorothalonil 的层次有关。在控制,细菌的人口,真菌,和放射菌类比作那些分别地,被 chlorpyrifos 被 44.1% , 61.1% ,和 72.8% 显著地独自在处理(DAT ) 以后在第一天减少。与 chlorothalonil 的增加,抑制在推荐剂量被增加到 55.2% , 79.3% ,和 85.8% ,并且 86.0% , 94.1% ,和 90.8% 在双剂量在一 DAT,分别地。结果建议联合效果应该被考虑估计杀虫剂应用的实际影响。CHU Xiaoqiang FANG Hua PAN Xuedong WANG Xiao SHAN Min FENG Bo YU Yunlong 2008Journal of Environmental Sciences2008,20,4:16
17MdGSTF6,activated by MdMYB1,plays an essential role in anthocyanin accumulation in apple显示文摘Anthocyanins are biosynthesized on the cytosolic surface of the endoplasmic reticulum and then transported into the vacuole for storage.Glutathione S-transferases(GSTs)are considered to be responsible for the transport of anthocyanins into the vacuole.However,the regulatory mechanisms of GSTs in plants are still unclear.Here,we performed a genome-wide analysis and identified 69 GST genes in apple.The expression of MdGSTF6 was positively correlated with the anthocyanin content(r=0.949)during‘Yanfu 8’fruit development.The overexpression of MdGSTF6 in the Arabidopsis thaliana tt19 mutant resulted in seedlings of 35S::MdGSTF6-GFP/tt19 that could accumulate anthocyanin and rescue its phenotype,suggesting that MdGSTF6 was an anthocyanin transporter.The silencing of MdGSTF6 affected anthocyanin accumulation in apple fruit.Moreover,the knockdown of MdGSTF6 by RNA interference in cultured‘Gala’seedlings inhibited anthocyanin accumulation.The interaction experiments showed that MdMYB1 could bind directly to the MdGSTF6 promoter to transcriptionally activate its expression.Collectively,our results demonstrate that MdGSTF6 encodes an important GST transporter of anthocyanins in apple fruit and provide evidence for the associated regulatory mechanisms.Therefore,MdMYB1 can not only regulate anthocyanin synthesis,but also control the transport of anthocyanin in apples.This information may be useful for further clarifying the regulation of anthocyanin transport in apple.Shenghui Jiang Min Chen Naibo He Xiaoliu Chen Nan Wang Qingguo Sun Tianliang Zhang Haifeng Xu Hongcheng Fang Yicheng Wang Zongying Zhang Shujing Wu Xuesen Chen 2019Horticulture Research2019,6,1:16
18Observation 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 2006Journal of Environmental Sciences2006,18,1:15
19Effect of anaphylatoxin C3a, C5a on the tubular epithelial-myofibroblast transdifferentiation in vitro显示文摘背景 Tubulointerstitial 肾的纤维变性是进步的肾疾病的普通结束点,并且管状的 epithelial-myofibroblast transdifferentiation ( TEMT )在 tubulointerstitial 的进步起一个关键作用肾的 fibrosis.Anaphylatoxin C3a 和 C5a 在肾的疾病并且作为这研究的潜在的新治疗学的 targets.The 目的作为新奇 profibrotic 因素被识别是调查是否 C3a , C5a 能由转变生长 factor-31 ( TGF-1 ) /connective 织物生长因素调整 TEMT 控制组, 10 ng/ml TGF-31 组, 50 nmol/L C5a 组,加 2.5 mol/L C5aRA 的 50 nmol/L C5a group.TGF-1 受体对手( TGF-1 RA ) 10 g/ml 被用来调查 导致C3a 、 导致C5a 的 TEMT.Electron 的机制显微镜学被用来观察染色的词法 changes.Immunocytochemistry ,即时 PCR 并且西方的弄污被用来检测光滑的肌肉肌动朊的表情( -SMA),E-cadherin,Col-I,C3a 受体( C3aR ), C5aR , CTGF 和与 C3a 和 C5a fo 有教养的 TGF-1.Results HK-2LIU Fang GOU Rong HUANG Jun FU Ping CHEN Feng FAN Wen-xing HUANG You-qun ZANG Li WU Min QIU Hong-yu WEI Da-peng 2011Chinese Medical Journal2011,,23:15
20Liver Enzymes Concentrations Are Closely Related to Pre-diabetes:Findings of the Shanghai Diabetes Study Ⅱ (SHDS Ⅱ)显示文摘Objective To investigate the relationship of liver enzymes with hyperglycemia in a large population in Shanghai and identify the association between liver enzymes and insulin resistance.Methods A total of 3 756 participants were enrolled.Each participant underwent an oral glucose tolerance test and completed a questionnaire.Anthropometric indices were recorded and serum samples were collected for measurement.Results Liver enzymes concentrations were independently associated with i-IGT,IFG+IGT,and diabetes.With the increase of ALT and GGT concentrations,ORs for i-IGT,IFG+IGT,and diabetes increased gradually.By comparing patients in the highest quartile of GGT concentrations or ALT concentrations with those in the lowest quartile (Q1),ORs for i-IGT,IFG+IGT,or diabetes was significant after adjustment.Both ALT and GGT concentrations were linearly correlated with HOMA-IR and independently associated with HOMA-IR [ALT OR (95% CI):2.56 (1.51-4.34) P=0.00;GGT OR (95% CI):2.66 (1.53-4.65) P=0.00].Conclusion Serum ALT and GGT concentrations were closely related to pre-diabetes and diabetes in the Shanghai population and positively associated with insulin resistance.GAO Fei PAN Jie Min HOU Xu Hong FANG Qi Chen LU Hui Juan TANG Jun Ling GU Hui Lin PAN Zhi Jian YAO You Hua SHEN Wei Zhen JIA Wei Ping 2012Biomedical and Environmental Sciences2012,25,1:15
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