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| 1 | Selective catalytic oxidation of NO with O_2 over Ce-doped MnO_x/TiO_2 catalysts显示文摘A series of Ce-doped MnOx/TiO2 catalysts were prepared by impregnation method and used for catalytic oxidation of NO in the presence of excess O2. The sample with the Ce doping concentration of Ce/Mn=1/3 and calcined at 300°C shows a superior activity for NO oxidation to NO2. On Ce(1)Mn(3)Ti catalyst, 58% NO conversion was obtained at 200°C and 85% NO conversion at 250°C with a GHSV of 41000 h-1, which was much higher than that over MnOx/TiO2 catalyst (48% at 250°C). Characterization results implied that the higher activity of Ce(1)Mn(3)Ti could be attributed to the enrichment of well-dispersed MnOx on the surface and the abundance of Mn3+ and Ti3+ species. The addition of Ce into MnOx/TiO2 could improve oxygen storage capacity and facilitate oxygen mobility of the catalyst as shown by PL and ESR, so that its activity for NO oxidation could be enhanced. The effect of H2O and SO2 on the catalyst activity was also investigated. | Xiaohai Li Shule Zhang Yong Jia Xiaoxiao Liu Qin Zhong | 2012 | Journal of Natural Gas Chemistry2012,21,1: | 26 |
| 2 | KRAS and BRAF gene mutations and DNA mismatch repair status in Chinese colorectal carcinoma patients显示文摘AIM:To investigate gene mutations and DNA mismatch repair(MMR) protein abnormality in Chinese colorectalcarcinoma(CRC) patients and their correlations with clinicopathologic features.METHODS:Clinical and pathological information for 535 patients including 538 tumors was reviewed and recorded.Mutation analyses for exon 2 of KRAS gene and exon 15 of BRAF gene were performed by Sanger sequencing except that in 9 tumors amplification refractory mutation system PCR was used.Expression of MMR proteins including MHL1,MSH2,MSH6 and PMS2 was evaluated by immunohistochemistry.Correlations of KRAS and BRAF mutation status and the expression status of MMR proteins with age,gender,cancer stage,location,and histology were analyzed.Correlations between KRAS or BRAF mutations and MMR protein expression were also explored.RESULTS:The overall frequencies of KRAS and BRAF mutations were 37.9% and 4.4%,respectively.KRAS mutations were more common in patients ≥ 50 years old(39.8% vs 22% in patients < 50 years old,P < 0.05).The frequencies of BRAF mutants were higher in tumors from females(6.6% vs males 2.8%,P < 0.05),located in the right colon(9.6% vs 2.1% in the left colon,1.8% in the rectum,P < 0.01),with mucinous differentiation(9.8% vs 2.8% without mucinous differentiation,P < 0.01),or being poorly differentiated(9.5% vs 3.4% well/moderately differentiated,P < 0.05).MMR deficiency was strongly associated with proximal location(20.5% in the right colon vs 9.2% in the left colon and 5.1% in the rectum,P < 0.001),early cancer stage(15.0% in stages Ⅰ-Ⅱ vs 7.7% in stages Ⅲ-Ⅳ,P < 0.05),and mucinous differentiation(20.2% vs 9.2% without mucin,P < 0.01).A higher frequency of MLH1/PMS2 loss was found in females(9.2% vs 4.4% in males,P < 0.05),and MSH2/MSH6 loss tended to be seen in younger(<50 years old) patients(12.0% vs 4.0% ≥ 50 years old,P < 0.05).MMR deficient tumors were less likely to have KRAS mutations(18.8% vs 41.7% in MMR proficient tumors,P < 0.05) and tumorswith abnormal MLH1/PMS2 tended to harbor BRAF mutations(15.4% vs 4.2% in MMR proficient tumors,P < 0.05).CONCLUSION:The frequency of sporadic CRCs having BRAF mutation,MLH1 deficiency and MSI in Chinese population may be lower than that in the Western population. | Ju-Xiang Ye Yan Liu Yun Qin Hao-Hao Zhong Wei-Ning Yi Xue-Ying Shi | 2015 | World Journal of Gastroenterology2015,21,5: | 26 |
| 3 | Multicenter case-control study of the risk factors for ulcerative colitis in China显示文摘AIM:To evaluate potential risk factors in the development of ulcerative colitis(UC) in China.METHODS:A total of 1308 patients with UC and 1308 age-matched and sex-matched controls were prospectively studied in China.The UC cases were collected from 17 hospitals in China from April 2007 to April 2010.Uniform questionnaires were designed to investigate risk factors including smoking,appendectomy,stress,socio-economic conditions,nonsteroidal antiinflammatory drugs(NSAIDs),oral contraceptives,diet,breastfeeding,infections and family sanitary conditions.Group comparisons by each factor were done using simple logistic regression analysis.Conditional logistic regression was used for multivariate analysis.RESULTS:By univariate analysis,the variables predictive of UC included feeling stress,light and heavy alcoholic drinking,spicy food,sugar consumption and infectious diarrhea,while heavy tea intake and tap water consumption were protective against UC.On multivariate analysis,the protective factor for UC was tap water consumption [odds ratios(OR) = 0.424,95%CI:0.302-0.594,P < 0.001];while the potential risk factors for UC were heavy sugar consumption(OR = 1.632,95%CI:1.156-2.305,P < 0.001),spicy food(light intake:OR = 3.329,95%CI:2.282-4.857,P < 0.001;heavy intake:OR = 3.979,95%CI:2.700-5.863,P < 0.001),and often feeling stress(OR = 1.981,95%CI:1.447-2.711,P < 0.001).Other factors,such as smoking habit,appendectomy,breastfeeding,a history of measles,rural or urban residence,education,oral contraceptives,and NSAID use have not been found to have a significant association with the development of UC in the present study.CONCLUSION:Our study showed tap water consumption was a protective factor for UC,while spicy food,heavy sugar consumption and often feeling stress were risk factors for UC in this Chinese population. | Yu-Fang Wang Qin Ou-yang Bing Xia Li-Na Liu Fang Gu Kai-Fang Zhou Qiao Mei Rui-Hua Shi Zhi-Hua Ran Xiao-Di Wang Pin-Jin Hu Kai-Chun Wu Xin-Guang Liu Ying-Lei Miao Ying Han Xiao-Ping Wu Guo-Bing He Jie Zhong Guan-Jian Liu | 2013 | World Journal of Gastroenterology2013,19,11: | 24 |
| 4 | Preliminary molecular epidemiology of the Staphylococcus aureus in lower respiratory tract infections: a multicenter study in China显示文摘 | LI De-zhi CHEN Yu-sheng YANG Jing-ping ZHANG Wei HU Cheng-ping LI Jia-shu MU Lan HU Ying-hui GENG Rong HU Ke CAI Shao-xi WAN Huan-ying WANG Qiu-yue WEI Li-ping DU Juan YU Qin ZHONG Xiao-ning WANG Rui-qin MA Jian-jun TIAN Gui-zhen WANG Si-qin GAO Zhan-cheng | 2011 | Chinese Medical Journal2011,,5: | 21 |
| 5 | Preliminary results of environmental monitoring of the natural gas hydrate production test in the South China Sea显示文摘Natural gas hydrate (NGH)is considered as one of the new clean energy sources of the 21st century with the highest potential.The environmental issues of NGH production have attracted the close attention of scientists in various countries.From May 10 to July 9,2017,the first offshore NGH production test in the South China Sea (SCS)was conducted by the China Geological Survey.In addition,environmental security has also been effectively guaranteed via a comprehensive environmental monitoring system built during the NGH production test.The monitoring system considered sea-surface atmosphere methane and carbon dioxide concentrations,dissolved methane in the sea water column,and the seafloor physical oceanography and marine chemistry environment.The whole process was monitored via multiple means, in multiple layers,in all domains,and in real time.After the production test,an environmental investigation was promptly conducted to evaluate the environmental impact of the NGH production test. The monitoring results showed that the dissolved methane concentration in seawater and the near-seabed environment characteristics after the test were consistent with the background values,indicating that the NGH production test did not cause environmental problems such as methane leakage. | Jian-liang Ye Xu-wen Qin Hai-jun Qiu Qian-yong Liang Yi-fei Dong Jian-gong Wei Hai-long Lu Jing-an Lu Yao-hong Shi Chao Zhong Zhen Xia | 2018 | China Geology2018,1,2: | 19 |
| 6 | Application of an acrylic vessel supported by a stainless-steel truss for the JUNO central detector显示文摘在 Daya 海湾实验的成功以后, Jiangmen 地下的中微子天文台(Jupiter 之妻) 被发射测量中微子团层次和摆动参数并且学习另外的中微子物理。它的中央察觉者从反应堆,地球,空气,和阳光被放为反中微子。中央察觉者的主要要求是液体闪烁器的 20 kt 的抑制,作为目标团,和 3% 精力分辨率。它关于有它的内部表面上的 PMT 的 75% 范围的 38.5 m 的一个球形状察觉者。因为它必须为物理测量的几种不同类型满足要求并且在它的结构和工程拥有可行性和可靠性,如此的一个巨大的察觉者的设计是大挑战,都在合理时间和费用。为 JUNO 中央察觉者的一种选择是超丙烯酸的球在水里沉没了防护背景。这份报纸为如此的一个丙烯酸的球建议一个结构的计划那被支持由一不锈钢捆绑,在土木工程由支持点的眼镜窗帘墙启发了。计划的初步的设计被有限元素(FE ) 用 ABAQUS 完成并且验证方法。FE 分析证明计划能在 5 ~ 10 MPa 的限制以内控制丙烯酸的球的压力水平,根据中央察觉者的设计目的需求。计划具有突出的全球稳定性并且在本地连接上允许各种各样的选择。我们证明计划可行性好并且应该是为中央察觉者的一种合理选择。 | WANG Yuan Qing ZONG Liang HENG Yue Kun WANG Zong Yi ZHOU Yan HOU Shao Jing QIN Zhong Hua MA Xiao Yan | 2014 | Science China(Technological Sciences)2014,57,12: | 19 |
| 7 | Gene therapy for human colorectal carcinoma using human CEA promoter controlled bacterial ADP-ribosylating toxin genes:PEA and DTA gene transfer显示文摘INTRODUCTIONAmajorrequirementforinvivogenetherapyforcanceristotargetthetherapeuticgeneexpresiontomalignanttissuesbyselectingp... | CAO Guang Wen 1, QI Zhong Tian 1, PAN Xin 1, ZHANG Xiao Qin 1, MIAO Xiao Hui 1, FENG Yan 1, LU Xin Hua 1, Shigeki Kuriyama 2 and DU Ping 1 | 1998 | World Journal of Gastroenterology1998,4,5: | 18 |
| 8 | Comparison of three methods for detecting epidermal growth factor receptor mutations in plasma DNA samples of Chinese patients with advanced non-small cell lung cancer显示文摘背景表皮的生长因素受体(EGFR ) 变化能预言肿瘤反应到酷氨酸 kinase 禁止者(TKI ) 。与先进非小的房间肺癌症在病人在血浆 DNA 样品检测 EGFR 变化挑战性、有希望。我们为检测血浆 EGFR 变化比较了三个方法,包括定序的直接 DNA ,使中毒的高效的液体层析( DHPLC )和蝎子扩大 .Methods 血浆 DNA 与阶段 B 从 73 个病人取样到腺癌的倔强的变化系统(蝎子手臂)在 exons 为 EGFR 变化被分析 19 (删除变化)并且 21 ( L858R 变化)使用定序的直接 DNA , DHPLC 和蝎子手臂。三个方法的敏感被比较,在 EGFR 变化和 patients'survival 之间的关系是在 73 个病人的 analyzed.Results,我们用蝎子手臂由定序的直接 DNA 在 5 件样品(6.9 ) ,在由 DHPLC 的 22 件样品(30.1 ) ,并且在 28 件样品(38.4 ) 检测了 EGFR 变化。EGFR 变化在 exon 在 13 件样品被发现 19 并且在在 exon 的 9 件样品 21 由 DHPLC,当我们在 exon 在 15 件样品发现了变化时 19 并且在在 exon 的 13 件样品, 21 由蝎子武装。在 73 个病人之中,在 DHPLC 和蝎子手臂之间有 90.4 词语索引(66/73, K=0.79, P=0.07 ) 。73 个病人, 46 个病人与 gefitinib 被对待,包括有变化的 18 个病人和没有用蝎子手臂决定了的变化的 28 个病人。有变化的 18 个病人有显著地更长的没有前进的幸存( PFS )时间(中部的 PFS 是 21.0 个月)比没有变化的 28 个病人(中部的 PFS 是 7.0 个月)( P=0.022 )在为在血浆 DNA 检测 EGFR 变化的三个方法之中的 .Conclusions 与先进的肺病人取样腺癌,直接基因定序有最低敏感,当蝎子手臂显示出检测能力的最高的变化时。DHPLC 不比蝎子手臂敏感。在 exons 的 EGFR 变化 19 (删除变化) 并且(L858R 变化) 21 预言更长的 PFS。 | QIN Ling ZHONG Wei ZHANG Li LI Long-yun WANG Meng-zhao | 2011 | Chinese Medical Journal2011,,6: | 17 |
| 9 | Correlation of burial organic carbon and paleoproductivity in the Mesoproterozoic Hongshuizhuang Formation, northern North China显示文摘In general, total organic carbon (TOC) is directly used as a proxy for paleoproductivity, however, it is not only affected by paleoproductivity, but also controlled by redox conditions and terrigenous detrital matter influx. Major and trace elements were analysed with the purpose of investigating the redox potential and paleoproductivity during deposition of the Hongshuizhuang Formation. In the present study, C-S relationship, V/Cr ratio and Mo concentration indicate that the dolomites were deposited in oxic environments, however, most of the black shales were accumulated in euxinic environments. P/Ti values in the Hongshuizhuang samples can be compared with those in the Japanese Ubara Permian-Triassic section which were regarded to be deposited under a moderate to high paleoproductivity. Ba/Al values are slightly lower than that of the laminated sediments from the continental margins of Central California (CCAL) which were thought to be accumulated under a high paleoproductivity. These results indicate that the paleoproductivity was moderate to high during deposition of the Hongshuizhuang Formation. Burial organic carbon shows positive correlations with V/Cr and Mo, but shows only weakly or no correlation with P/Ti and Ba/Al, respectively, suggesting that although the paleoproductivity was moderate to high during deposition of the Hongshuizhuang Formation, its organic-rich sediments were predominantly controlled by redox conditions and had no direct relationship with paleoproductivity. | LUO QingYong ZHONG NingNing ZHU Lei WANG YanNian QIN Jing QI Lin ZHANG Yi MA Yong | 2013 | Chinese Science Bulletin2013,58,11: | 17 |
| 10 | Preparation and self-assembly of amphiphilic polymer with aggregation-induced emission characteristics显示文摘An amphiphilic polymer bearing tetraphenylethene (TPE) moiety was synthesized by convenient reactions. The polymer exhibits unique aggregation-induced emission (AIE) characteristics and can self-assemble to size-tunable particles in DMF/water mixtures. The polymer nanoparticles can be used for cell imaging, which provides a potential stable fluorescent tool to monitor the distribution of drugs and bioconjugates in living cells. | QIN AnJun ZHANG Ya HAN Ning MEI Ju SUN JingZhi FAN WeiMin TANG Ben Zhong | 2012 | Science China Chemistry2012,55,5: | 16 |
| 11 | Variation and mechanisms of clastic reservoir quality in the Paleogene Shahejie Formation of the Dongying Sag, Bohai Bay Basin, China显示文摘Reservoir quality varies greatly in the Shahejie Formation in the Dongying Sag. It is essential to analyze the variation and mechanisms of reservoir quality for determining the controlling factors based on cores, porosity measurements and fluid inclusion techniques and so on. The sandstones in the fluvial,(fan) delta-front have the best reservoir quality due to the depositional conditions mechanically controlling the petrology configuration and the primary porosity, and chemically influencing the diagenesis and development of secondary pores. The activity of the boundary faults and the sedimentary facies dominate the variation of reservoir quality in different areas and intervals. The reservoir quality varies with the position of sandstone beds in different vertical models of sandstone and mudstone. This mainly arose from the strong cementation or strong dissolution in the sandstone caused by the diagenesis evolution of adjacent mudstone. With higher oil saturation reservoir quality is better because the hydrocarbon charge favors dissolution and restricts cementation. Diagenesis, depositional conditions and tectonic setting are the key controls of reservoir quality in the Shahejie Formation of the Dongying Sag. | Zhang Qin Zhu Xiaomin Ronald J Steel Zhong Dakang | 2014 | Petroleum Science2014,11,2: | 16 |
| 12 | Application of needle-knife in difficult biliary cannulation for endoscopic retrograde cholangiopancreatography显示文摘BACKGROUND: Getting directly into the common bile duct (CBD) is the most important step for successful therapeutic biliary endoscopy. In 5%-10% of cases, the CBD remains inaccessible, necessitating pre-cut papillotomy or fistulotomy with a needle-knife. The aim of this study was to assess the value of early application of the needle-knife in difficult biliary cannulation for endoscopic retrograde cholangiopancreatography (ERCP). METHODS: Patients with failed biliary cannulation after 10 minutes or guide wire entering the pancreatic tube 3 times were randomly divided into group of needle-knife cut and group of persistent cannulation by standard techniques. The cannulation times, success rates and complication rates were compared between the two groups. RESULTS: A total of 948 therapeutic biliary ERCP procedures were performed between October 2004 and February 2006. Of 91 patients with difficult biliary cannulation, 43 patients underwent needle-knife cut: the cannulation success rate was 90.7%, the mean cannulation time was 5.6 minutes, and the complication rate was 9.3%. The other 48 patients underwent persistent cannulation by standard techniques: the cannulation success rate was 75%, the mean cannulation time was 10.2 minutes, and the complication rate was 14.6%. Significant differences were observed in cannulation success rate and cannulation time but in complication rate between the two groups.CONCLUSION: The early application of the needle-knife in difficult biliary cannulation is time-saving, safe and effective, with no increase in complication rate. | Ping-Hong Zhou, Li-Qing Yao, Mei-Dong Xu, Yun-Shi Zhong, Wei-Dong Gao, Guo-Jie He, Yi-Qun Zhang, Wei-Feng Chen and Xin-Yu Qin Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China | 2006 | Hepatobiliary & Pancreatic Diseases International2006,5,4: | 14 |
| 13 | Colostomy is a simple and effective procedure for severe chronic radiation proctitis显示文摘AIM: To assess the efficacy and safety of diverting colostomy in treating severe hemorrhagic chronic radiation proctitis(CRP). METHODS: Patients with severe hemorrhagic CRP who were admitted from 2008 to 2014 were enrolled into this study. All CRP patients were diagnosed by a combination of pelvic radiation history, clinical rectal bleeding, and endoscopic findings. Inclusion criteria were CRP patients with refractory bleeding with moderate to severe anemia with a hemoglobin level < 90 g/L. The study group included patients who were treated by diverting colostomy, while the control group included patients who received conservative treatment. The remission of bleeding was defined as complete cessation or only occasional bleeding that needed no further treatment. The primary outcome was bleeding remission at 6 mo after treatment. Quality of life beforetreatment and at follow-up was evaluated according to EORTC QLQ C30. Severe CRP complications were recorded during follow-up.RESULTS: Forty-seven consecutive patients were enrolled, including 22 in the colostomy group and 27 in the conservative treatment group. When compared to conservative treatment, colostomy obtained a higher rate of bleeding remission(94% vs 12%), especially in control of transfusion-dependent bleeding(100% vs 0%), and offered a better control of refractory perianal pain(100% vs 0%), and a lower score of bleeding(P < 0.001) at 6 mo after treatment. At 1 year after treatment, colostomy achieved better remission of both moderate bleeding(100% vs 21.5%, P = 0.002) and severe bleeding(100% vs 0%, P < 0.001), obtained a lower score of bleeding(0.8 vs 2.0, P < 0.001), and achieved obvious elevated hemoglobin levels(P = 0.003), when compared to the conservative treatment group. The quality of life dramatically improved after colostomy, which included global health, function, and symptoms, but it was not improved in the control group. Pathological evaluation after colostomy found diffused chronic inflammation cells, and massive fibrosis collagen depositions under the rectal wall, which revealed potential fibrosis formation. CONCLUSION: Diverting colostomy is a simple, effective and safe procedure for severe hemorrhagic CRP. Colostomy can improve quality of life and reduce serious complications secondary to radiotherapy. | Zi-Xu Yuan Teng-Hui Ma Huai-Ming Wang Qing-Hua Zhong Xi-Hu Yu Qi-Yuan Qin Jian-Ping Wang Lei Wang | 2016 | World Journal of Gastroenterology2016,22,24: | 14 |
| 14 | Drug-resistant genes carried by Acinetobacter baumanii isolated from patients with lower respiratory tract infection显示文摘 | DAI Ning LI De-zhi CHEN Ji-chao CHEN Yu-sheng GENG Rong HU Ying-hui YANG Jing-ping DU Juan HU Cheng-ping ZHANG Wei LI Jia-shu YU Qin WAN Huan-ying MU Lan ZHONG Xiao-ning WEI Li-ping MA Jian-jun WANG Qiu-yue HU Ke TIAN Gui-zhen CAI Shao-xi WANG Rui-qin HE Bei WANG Si-qin WANG Zhan-wei ZHAO Su-rui GAO Zhan-cheng | 2010 | Chinese Medical Journal2010,,18: | 13 |
| 15 | Endoscopic submucosal dissection for foregut neuroendocrine tumors:An initial study显示文摘AIM:To evaluate the feasibility and efficacy of endoscopic submucosal dissection(ESD) for foregut neuroendocrine tumors(NETs).METHODS:From April 2008 to December 2010,patients with confirmed histological diagnosis of foregut NETs were included.None had regional lymph node enlargement or distant metastases to the liver or lung on preoperative computerized tomography scanning or endoscopic ultrasonography(EUS).ESD was attempted under general anesthesia.After making several marking dots around the lesion,a mixture solution was injected into the submucosa.The mucosa was incised outside the marking dots.Dissection of the submucosal layer beneath the tumor was performed under direct vision to achieve complete en bloc resection of the specimen.Tumor features,clinicopathological characteristics,complete resection rate,and complications were evaluated.Foregut NETs were graded as G1,G2,or G3 on the basis of proliferative activity by mitotic count or Ki-67 index.All patients underwent regular follow-up to evaluate for any local recurrence or distant metastasis.RESULTS:Those treated by ESD included 24 patients with 29 foregut NETs.The locations of the 29 lesions are as follows:esophagus(n = 1),cardia(n = 1),stomach(n = 23),and duodenal bulb(n = 4).All lesions were found incidentally during routine upper gastrointestinal endoscopy for other indications,and none had symptoms of carcinoid syndrome.Preoperative EUS showed that all tumors were confined to the submucosa.Among the 24 gastric lesions,16 lesions in 11 patients were type I gastric NETs arising in chronic atrophic gastritis with hypergastrinemia,while the other 8 solitary lesions were type Ⅲ because of absence of atrophic gastritis in these cases.All of the tumors were removed in an en bloc fashion.The average maximum diameter of the lesions was 9.4 mm(range:2-30 mm),and the procedure time was 20.3 min(range:10-45 min).According to the World Health Organization 2010 classification,histological evaluation determined that 26 lesions were NET-G1,2 gastric lesions were NET-G2,and 1 esophageal lesion was neuroendocrine carcinoma(NEC).Complete resection was achieved in 28 lesions(28/29,96.6%),and all of them were confined to the submucosa in histopathologic assessment with no lymphovascular invasion.The remaining patient with NEC underwent additional surgery because the resected specimens revealed angiolymphatic and muscularis invasion,as well as incomplete resection.Delayed bleeding occurred in 1 case 3 d after ESD,which was managed by endoscopic treatment.There were no procedure-related perforations.During a mean follow-up period of 24.4 mo(range:12-48 mo),local recurrence occurred in only 1 patient 7 mo after initial ESD.This patient successfully underwent repeat ESD.Metastasis to lymph nodes or distal organs was not observed in any patient.No patients died during the study period.CONCLUSION:ESD appears to be a safe,feasible,and effective procedure for providing accurate histopathological evaluations and curative treatment for eligible foregut NETs. | Quan-Lin Li Yi-Qun Zhang Wei-Feng Chen Mei-Dong Xu Yun-Shi Zhong Li-Li Ma Wen-Zheng Qin Jian-Wei Hu Ming-Yan Cai Li-Qing Yao Ping-Hong Zhou | 2012 | World Journal of Gastroenterology2012,18,40: | 13 |
| 16 | Lower clearance of sodium tanshinone IIA sulfonate in coronary heart disease patients and the effect of total bilirubin: a population pharmacokinetics analysis显示文摘This study developed a population pharmacokinetic model for sodium tanshinone IIA sulfonate(STS) in healthy volunteers and coronary heart disease(CHD) patients in order to identify significant covariates for the pharmacokinetics of STS. Blood samples were obtained by intense sampling approach from 10 healthy volunteers and sparse sampling from 25 CHD patients, and a population pharmacokinetic analysis was performed by nonlinear mixed-effect modeling. The final model was evaluated by bootstrap and visual predictive check. A total of 230 plasma concentrations were included, 137 from healthy volunteers and 93 from CHD patients. It was a two-compartment model with first-order elimination. The typical value of the apparent clearance(CL) of STS in CHD patients with total bilirubin(TBIL) level of 10 μmol×L^(–1) was 48.7 L×h^(–1) with inter individual variability of 27.4%, whereas that in healthy volunteers with the same TBIL level was 63.1 L×h^(–1). Residual variability was described by a proportional error model and estimated at 5.2%. The CL of STS in CHD patients was lower than that in healthy volunteers and decreased when TBIL levels increased. The bootstrap and visual predictive check confirmed the stability and validity of the final model. These results suggested that STS dosage adjustment might be considered based on TBIL levels in CHD patients. | QIN Wei-Wei WANG Li JIAO Zheng WANG Bin WANG Cheng-Yu QIAN Li-Xuan QI Wei-Lin ZHONG Ming-Kang | 2019 | Chinese Journal of Natural Medicines2019,17,3: | 13 |
| 17 | Promotional effect of Si-doped V_2O_5/TiO_2 for selective catalytic reduction of NOx by NH_3显示文摘TiO2 supports doped with different amounts of Si were prepared by a sol-gel method, and 1 wt% vanadia (V2O5) loaded on Si-doped TiO2 was obtained by an impregnation method. The mole ratio of Si/Ti was 0.2, NOx conversion exceeds 94% at 300℃ and GHSV of 41,324 hr-1 , which is about 20% higher than pure V2O5/TiO2 . The catalysts were characterized by XRD, BET, TEM, FT-IR, NH3-TPD, XPS, H2-TPR, Raman and in situ DRIFTS. The results of FT-IR and XPS indicated that Si was doped into the TiO2 lattice successfully and a solid solution was obtained. V2O5 active component could be dispersed well on the support with the increasing of surface area of the catalyst, which was confirmed by Raman and XRD results. Above all, the numbers of acid sites (especially the Br nsted-acid) and oxidation properties were enhanced for Si-doped V2O5/TiO2 catalysts, which improved the deNOx catalytic activity. | Yanxiao Pan Wei Zhao Qin Zhong Wei Cai Hongyu Li | 2013 | Journal of Environmental Sciences2013,25,8: | 13 |
| 18 | Protective effect of hydrogen-rich saline on ischemia/reperfusion injury in rat skin flap显示文摘Objective: Skin damage induced by ischemia/reperfusion (I/R) is a multifactorial process that often occurs in plastic surgery. The mechanisms of I/R injury include hypoxia, inflammation, and oxidative damage. Hydrogen gas has been reported to alleviate cerebral I/R injury by acting as a free radical scavenger. Here, we assessed the protective effect of hydrogen-rich saline (HRS) on skin flap I/R injury. Methods: Abdominal skin flaps of rats were elevated and ischemia was induced for 3 h; subsequently, HRS or physiological saline was administered intraperitoneally 10 min before reperfusion. On postoperative Day 5, flap survival, blood perfusion, the accumulation of reactive oxygen species (ROS), and levels of cytokines were evaluated. Histological examinations were performed to assess inflammatory cell infiltration. Results: Skin flap survival and blood flow perfusion were improved by HRS relative to the controls. The production of malondialdehyde (MDA), an indicator of lipid peroxidation, was markedly reduced. A multiplex cytokine assay revealed that HRS reduced the elevation in the levels of inflammatory cytokines, chemokines and growth factors, with the exception of RANTES (regulated on activation, normal T-cell expressed and secreted) growth factor. HRS treatment also reduced inflammatory cell infiltration induced by I/R injury. Conclusions: Our findings suggest that HRS mitigates I/R injury by decreasing inflammation and, therefore, has the potential for application as a therapy for improving skin flap survival. | Ling ZHAO You-bin WANG Shi-rui QIN Xue-mei MA Xue-jun SUN Ming-lian WANG Ru-gang ZHONG | 2013 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2013,14,5: | 12 |
| 19 | Effectiveness of Auricular Acupressure for Acute Postoperative Pain after Surgery: A Systematic Review and Meta-Analysis显示文摘Objective: To identify the effectiveness of auricular acupressure(AA) in patients with acute postoperative pain after surgery by systematic review. Methods: A search of randomized controlled trials was conducted in 5 English medical electronic databases and 4 Chinese databases. Two reviewers independently retrieved related studies, assessed the methodological quality, and extracted data with a standardized data form. Meta-analyses were performed using all time-points meta-analysis. Results: A total of 26 studies with 1,682 participants were included. Results showed that compared with conventional therapy, AA significantly improved the total effective rate [risk ratio=1.25, 95% confidence interval(CI), 1.13 to 1.37, P<0.0001; heterogeneity: P<0.0001, I^2=85%]. In the subgroup analysis, the results changed in different follow-up time and surgery categories. The pain relief in the AA group might be the most significant at 72 h after surgery(mean difference=–0.85, 95% CI, –1.20 to –0.50, P<0.0001) and in abdominal surgery(mean difference=–1.15, 95% CI, –1.41 to –0.90, P<0.0001). Sensitivity analysis demonstrated that the results of this meta-analysis were stable. No serious adverse effects were recorded. Conclusions: It was recommended to provide AA to patients with acute postoperative pain. However, a more accurate estimate of the effect requires further rigorously designed large-scale and high-quality RCTs for improving acute postoperative pain after surgery. | ZHONG Qin WANG Di BAI Ya-mei DU Shi-zheng SONG Yu-lei ZHU Jing | 2019 | Chinese Journal of Integrative Medicine2019,25,3: | 12 |
| 20 | Formalin irrigation for hemorrhagic chronic radiation proctitis显示文摘AIM: To assess the efficacy and safety of a modified topical formalin irrigation method in refractory hemorrhagic chronic radiation proctitis(CRP). METHODS: Patients with CRP who did not respond to previous medical treatments and presented with grade II-III rectal bleeding according to the Common Terminology Criteria for Adverse Events were enrolled. Patients with anorectal strictures, deep ulcerations, and fistulas were excluded. All patients underwent flexible endoscopic evaluation before treatment. Patient demographics and clinical data, including primary tumor, radiotherapy and previous treatment options, were collected. Patients received topical 4% formalin irrigation in a clasp-knife position under spinal epidural anesthesia in the operating room. Remission of rectal bleeding and related complications were recorded. Defecation, remission of bleeding, and other symptoms were investigated at follow-up. Endoscopic findings in patients with rectovaginal fistulas were analyzed.RESULTS: Twenty-four patients(19 female, 5 male) with a mean age of 61.5 ± 9.5 years were enrolled. The mean time from the end of radiotherapy to the onset of bleeding was 11.1 ± 9.0 mo(range: 2-24 mo). Six patients(25.0%) were blood transfusion dependent. The median preoperative Vienna Rectoscopy Score(VRS) was 3 points. Nineteen patients(79.2%) received only one course of topical formalin irrigation, and five(20.8%) required a second course. No side effects were observed. One month after treatment, bleeding cessation was complete in five patients and obvious in14; the effectiveness rate was 79.1%(19/24). For longterm efficacy, 5/16, 1/9 and 0/6 patients complained of persistent bleeding at 1, 2 and 5 years after treatment, respectively. Three rectovaginal fistulas were found at 1 mo, 3 mo and 2 years after treatment. Univariate analysis showed associations of higher endoscopic VRS and ulceration score with risk of developing rectovaginal fistula. CONCLUSION: Modified formalin irrigation is an effective and safe method for hemorrhagic CRP, but should be performed cautiously in patients with a high endoscopic VRS. | Teng-Hui Ma Zi-Xu Yuan Qing-Hua Zhong Huai-Ming Wang Qi-Yuan Qin Xiao-Xia Chen Jian-Ping Wang Lei Wang | 2015 | World Journal of Gastroenterology2015,21,12: | 11 |