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1Review of risk factors for human echinococcosis prevalence on the Qinghai-Tibet Plateau, China: a prospective for control options显示文摘Objective: Echinococcosis is a major parasitic zoonosis of public health importance in western China. In 2004, the Chinese Ministry of Health estimated that 380,000 people had the disease in the region. The Qinghai-Tibet Plateau is highly co-endemic with both alveolar echinococcosis (AE) and cystic echinococcosis (CE). In the past years, the Chinese government has been increasing the financial support to control the diseases in this region. Therefore, it is very important to identify the significant risk factors of the diseases by reviewing studies done in the region in the past decade to help policymakers design appropriate control strategies. Review: Selection criteria for which literature to review were firstly defined. Medline, CNKI (China National Knowledge Infrastructure), and Google Scholar were systematically searched for literature published between January 2000 and July 2011. Significant risk factors found by single factor and/or multiple factors analysis were listed, counted, and summarized. Literature was examined to check the comparability of the data;age and sex specific prevalence with same data structures were merged and used for further analysis. A variety of assumed social, economical, behavioral, and ecological risk factors were studied on the Plateau. Those most at risk were Tibetan herdsmen, the old and female in particular. By analyzing merged comparable data, it was found that females had a significant higher prevalence, and a positive linearity relationship existed between echinococcosis prevalence and increasing age. In terms of behavioral risk factors, playing with dogs was mostly correlated with CE and/or AE prevalence. In terms of hygiene, employing ground water as the drinking water source was significantly correlated with CE and AE prevalence. For definitive hosts, dog related factors were most frequently identified with prevalence of CE or/and AE;fox was a potential risk factor for AE prevalence only. Overgrazing and deforestation were significant for AE prevalence only. Conclusion: Tibetan herdsmen communities were at the highest risk of echinococcosis prevalence and should be the focus of echinococcosis control. Deworming both owned and stray dogs should be a major measure for controlling echinococcosis;treatment of wild definitive hosts should also be considered for AE endemic areas. Health education activities should be in concert with the local people's education backgrounds and languages in order to be able to improve behaviors. Further researches are needed to clarify the importance of wild hosts for AE/CE prevalence, the extent and range of the impacts of ecologic changes (overgrazing and deforestation) on the AE prevalence, and risk factors in Tibet.Qian Wang Yan Huang Liang Huang Wenjie Yu Wei He Bo Zhong Wei Li Xiangman Zeng Dominique A Vuitton Patrick Giraudoux Philip S Craig Weiping Wu 2014Infectious Diseases of Poverty2014,3,1:35
2Calcium signaling and T-type calcium channels in cancer cell cycling显示文摘Regulation of intracellular calcium is an important signaling mechanism for cell proliferation in both normal and cancerous cells. In normal epithelial cells, free calcium concentration is essential for cells to enter and accomplish the S phase and the M phase of the cell cycle. In contrast, cancerous cells can pass these phases of the cell cycle with much lower cytoplasmic free calcium concentrations, indicating an alternative mechanism has developed for fulfilling the intracellular calcium requirement for an increased rate of DNA synthesis and mitosis of fast replicating cancerous cells. The detailed mechanism underlying the altered calcium loading pathway remains unclear; however, there is a growing body of evidence that suggests the T-type Ca2+ channel is abnormally expressed in cancerous cells and that blockade of these channels may reduce cell proliferation in addition to inducing apoptosis. Recent studies also show that the expression of T-type Ca2+ channels in breast cancer cells is proliferation state dependent, i.e. the channels are expressed at higher levels during the fast-replication period, and once the cells are in a non-proliferation state, expression of this channel isminimal. Therefore, selectively blocking calcium entry into cancerous cells may be a valuable approach for preventing tumor growth. Since T-type Ca2+ channels are not expressed in epithelial cells, selective T-type Ca2+ channel blockers may be useful in the treatment of certain types of cancers.James T Taylor Xiang-Bin Zeng Jonathan E Pottle Kevin Lee Alun R Wang Stephenie G Yi lennifer A S Scruggs Suresh S Sikka Ming Li 2008World Journal of Gastroenterology2008,14,32:12
3Overexpression of hepatic plasminogen activator inhibitor type 1 mRNA in rabbits with fatty liver显示文摘INTRODUCTIONPlasminogen activator inhibitor type 1 ( PAI-I ), an approximately Mr 50000 glycoprotein, is the major physiological inhibitor of plasminogen activators. It is not only the priming factor for atherosclerosis and coronary thrombosis[1-3] , but also participates in the genesis of chronic hepatitis and liver fibrosis[4-11] . However, there has been no available report yet about the research of hepatic PAl-1 gene expression in hyperlipidemia and fatty liver. The present study aimed to explore the change of hepatic PAl-1 mRNA and its plasma activity by means of animal model.Jian-Gao Fan~1 Liang-Hua Chen~2 Zheng-Jie Xu~1 Min-De Zeng~3 1 Department of Gastroenterology,Shanghai First People’s Hospital,Shanghai 200085,China2 Department of Cardiology,Shandong Provincial Hospital,Jinan 250021,China3 Shanghai Institute of Digestive Diseases,Shanghai 200080,China 2001World Journal of Gastroenterology2001,7,5:8
4JWA regulates melanoma metastasis by integrin alpha(V)beta(3) signaling(摘要)显示文摘Bai, J Zhang, J Wu, J Shen, L Zeng, J Ding, J Wu, Y Gong, Z Li, A Xu, S Zhou, J Li, G 2010南京医科大学学报(自然科学版)2010,30,8:4
5Stereoselective propranolol metabolism in two drug induced rat hepatic microsomes显示文摘AIM To study the influence of inducers BNFand PB on the stereoselective metabolism ofpropranolol in rat hepatic microsomes.METHODS Phase Ⅰ metabolism of propranololwas studied by using the microsomes induced byBNF and PB and the non-induced microsome asthe control.The enzymatic kinetic parameters ofpropranolol enantiomers were calculated byregression analysis of Lineweaver-Burk plots.Propranolol concentrations were assayed byHPLC.RESULTS A RP-HPLC method was developed todetermine propranolol concentration in rathepatic microsomes.The linearity equations forR(+)-propranolol and S(-)-propranolol wereA=705.7C+311.2C(R = 0.9987)and A= 697.2C+311.4C(R = 0.9970)respectively.Recoveriesof each enantiomer were 98.9%,99.5%,101.0%at 60 μmol/L,120 μmol/L,240 μmol/Lrespectively.At the concentration level of120 μmol/L,propranolol enantiomers weremetabolized at different rates in differentmicrosomes.The concentration ratio R(+)/S(-)of control and PB induced microsomesincreased with time,whereas that of microsomeinduced by BNF decreased.The assayed enzymeparameters were:1.Km.Control group:R(+)30+8,S(-)18+5;BNFgroup:R(+)34+3,S(-)39±7;PB group:R(+)38±17,S(-)36±10.2.Vmax.Control group:R(+)1.5+0.2,S(-)2.9±0.3;BNF group:R(+)3.8±0.3,S(-)3.3±0.5;PB group:R(+)0.07±0.03,S(-)1.94±0.07.3.Clint.Control group:R(+)60±3,S(-)170±30;BNF group:R(+)111.0±1,S(-)84± 5;PBgroup:R(+)2.0±2,S(-)56.0±1.Theenzyme.parameters compared with unpaired ttests showed that no stereoselectivity wasobserved in enzymatic affinity of threemicrosomes to enantiomers and their catalyticabilities were quite different and hadstereoselectivities.Compared with the control,microsome induced by BNF enhanced enzymeactivity to propranolol R(+)-enantiomer,andmicrosome induced by PB showed less enzymeactivity to propranolol S(-)-enantiomer whichremains the same stereoselectivities as that ofthe control.CONCLUSION Enzyme activity centers of themicrosome were changed in composition andregioselectivity after the induction of BNF andPB,and the stereoselectivities of propranololcytochrome P450 metabolism in rat hepaticmicrosomes were likely due to thestereoselectivities of the catalyzing function inenzyme.CYP1A subfamily induced by BNFexhibited pronounced contribution to propranololmetabolism with stereoselectivity to R(+)-enantiomer.CYP2B subfamily induced by PBexhibited moderate contribution to propranololmetabolism,but still had the stereoselectivity ofS(-)-enantiomer.Li X Zeng S 2000World Journal of Gastroenterology2000,6,1:4
6Molecular and Epidemiological Characterization of Infant Botulism in Beijing, China显示文摘Laboratory-based pathogen isolation, identification, and toxicity determination were performed on samples from a suspected case of infant botulism. Mice injected with cultures generated from the enema sample and ingested Powered infant formula(PIF) presented typical signs of botulism. Antitoxins to polyvalent botulinum neurotoxins(BoNTs) and monovalent BoNT type B antitoxin had protective effects. Clostridium botulinum isolated from the enema and residual PIF samples were positive for type B toxin. Pulsed-field gel electrophoresis(PFGE) revealed that the two strains of C. botulinum isolated from the two samples produced indistinguishable pulsotypes. These findings confirmed this case of type B infant botulism associated with the ingestion of PIF contaminated by type B C. botulinum spores.DONG Yin Ping WANG Wei JIANG Tao XU Jin HAN Chun Hui YAN Shao Fei Séamus Fanning LI Ying MA Xiao Chen ZHANG Di ZHAO Yao ZENG Biao LI Feng Qin 2017Biomedical and Environmental Sciences2017,30,6:4
7Moving Force Identification - Time Domain Method显示文摘Law S S Chan T H T Zeng Q H 1997Journal of Sound and Vibration1997,201,1:4
8Origin of pit chains in the floor of lunar Copernican craters显示文摘There are small pit chains in the floor of lunar Copernican craters. They are usually so small in scale that there are few lunar spacecrafts to detect their detailed morphology. Combining camera data from Lunar Orbiter, Lunar Reconnaissance Orbiter (LRO), Kaguya and Chang’e-1 missions, 5 representative large Copernican craters on various terrains of the lunar surface are chosen to study the origin of the pit chains in the crater floor. The morphology and distribution characteristic of the pit chains are referred by the high resolution images in this research. It is suggested that it is the magma activities from the subsurface magma layer combining with the existence of fractures and faults under the crater floor that leaded the formation of the pit chains. The model is further verified and discussed using the regolith thickness data in the crater floor. Our model suggests that the pit chains are still developing in the floor of the Copernican craters and the Moon may not be totally cold. Finally, the model limitation and potential future work are discussed based on available data.XIAO ZhiYong 1* , ZENG ZuoXun 1,2 , XIAO Long 1,2 , FA WenZhe 3 & HUANG Qian 3,4 1 Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China 2 Research Center for Space Science and Technology, China University of Geosciences, Wuhan 430074, China 3 Institut de Physique du Globe de Paris, 4 Avenue de Neptune, Saint Maur des Fosse’s, 94100, France 4 Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China 2010Science China(Physics,Mechanics & Astronomy)2010,53,12:4
9急性病毒性肝炎的全球负担及其与社会经济发展状态的关系(1990—2019)显示文摘【据Journal of Hepatology 2021年5月报道】题:急性病毒性肝炎的全球负担及其与社会经济发展状态的关系(1990—2019)(作者Zeng DY等)急性病毒性肝炎(AVH)是全球重要的公共卫生健康问题,但由于全球病毒性肝炎防治重心在于后果严重的慢性乙型肝炎(CHB)以及慢性丙型肝炎(CHC),而关于AVH的研究进展有限。随着最近针对病毒性肝炎的疫苗和治疗方法的进展,需要对AVH的负担进行更深入的了解,从而为全球干预策略提供依据。来自福建医科大学第一附属医院肝病科的Zeng等通过全球疾病负担2019数据库(Global Burden of Disease Study 2019)收集4种主要AVH类型的年龄标准化发病率和伤残调整生命年(DALY)率数据,包括A、B、C和E型急性肝炎,并将数据以性别、社会人口指数(SDI)水平、国家和地区进行分层,描述社会经济发展状态(以SDI为代表)与AVH负担的关联性。ZENG DY LI JM LIN S 2021临床肝胆病杂志2021,37,6:4
10Utilization of Thermal Infrared Image for Inversion of Winter Wheat Yield and Biomass显示文摘The present paper utilizes thermal infrared image for inversion of winter wheat yield and biomass with different technology of irrigation(drip irrigation,sprinkler irrigation,flood irrigation).It is the first time that thermal infrared image is used for predicting the winter wheat yield and biomass.The temperature of crop and background was measured by thermal infrared image.It is necessary to get the crop background separation index(CBSIL,CBSIH),which can be used for distinguishing the crop value from the image.CBSIL and CBSIH(the temperature when the leaves are wet adequately;the temperature when the stomata of leaf is closed completely) are the threshold values.The temperature of crop ranged from CBSIL to CBSIH.Then the ICWSI was calculated based on relevant theoretical method.The value of stomata leaf has strong negative correlation with ICWSI proving the reliable value of ICWSI.In order to construct the high accuracy simulation model,the samples were divided into two parts.One was used for constructing the simulation model,the other for checking the accuracy of the model.Such result of the model was concluded as:(1) As for the simulation model of soil moisture,the correlation coefficient(R2) is larger than 0.887 6,the average of relative error(Er) ranges from 13.33% to 16.88%;(2) As for the simulation model of winter wheat yield,drip irrigation(0.887 6,16.89%,-0.12),sprinkler irrigation(0.970 0,14.85%,-0.12),flood irrigation(0.969 0,18.87%,0.18),with the values of R2,Er and CRM listed in the parentheses followed by the individual term.(3) As for winter wheat biomass,drip irrigation(0.980 0,13.70%,0.13),sprinkler irrigation(0.95,13.15%,-0.14),flood irrigation(0.970 0,14.48%,-0.13),and the values in the parentheses are demonstrated the same as above.Both the CRM and Er are shown to be very low values,which points to the accuracy and reliability of the model investigated.The accuracy of model is high and reliable.The results indicated that thermal infrared image can be used potentially for inversion of winter wheat yield and biomass.DU Wen-yong ZHANG Lu-da HU Zhen-fang Shamaila Z ZENG Ai-jun SONG Jian-li LIU Ya-jia Wolfram S Joachim M HE Xiong-kui 2011光谱学与光谱分析2011,31,6:3
11Polysaccharide-based nanomedicines for cancer immunotherapy:A review显示文摘Cancer immunotherapy is an effective antitumor approach through activating immune systems to eradicate tumors by immunotherapeutics.However,direct administration of“naked”immunotherapeutic agents(such as nucleic acids,cytokines,adjuvants or antigens without delivery vehicles)often results in:(1)an unsatisfactory efficacy due to suboptimal pharmacokinetics;(2)strong toxic and side effects due to low targeting(or off-target)efficiency.To overcome these shortcomings,a series of polysaccharide-based nanoparticles have been developed to carry immunotherapeutics to enhance antitumor immune responses with reduced toxicity and side effects.Polysaccharides are a family of natural polymers that hold unique physicochemical and biological properties,as they could interact with immune system to stimulate an enhanced immune response.Their structures offer versatility in synthesizing multifunctional nanocomposites,which could be chemically modified to achieve high stability and bioavailability for delivering therapeutics into tumor tissues.This review aims to highlight recent advances in polysaccharide-based nanomedicines for cancer immunotherapy and propose new perspectives on the use of polysaccharide-based immunotherapeutics.Yujun Zeng Yufan Xiang Ruilong Sheng Helena Tomás João Rodrigues Zhongwei Gu Hu Zhang Qiyong Gong Kui Luo 2021Bioactive Materials2021,6,10:3
12High expression of human serum albumin in milk of trans-genie mice directed by the goat β-casein gene promoter region显示文摘We have constructed a mammary gland expression vector that contained the goat β-casein gene pro-moter, 5’upstream regulatory region, exons 1, 2, intron 1 as well as the human serum albumin (hALB) mini-gene (including the full-long sequences of hALB cDNA and its intron 1). Injection of the vector into mouse tail veins showed that the recombinant construct was expressed only in mammary glands. The vector was microinjected into the mouse fertilized eggs, followed by transferring the eggs into the foster mice. 33 F0 mice were obtained. Of the 33, 8 mice (5 , 3 ) were transgenic with hALB gene integration identified by PCR as well as Southern blot hybridization. The integration rate was 24.2% (8/33). Western blot analysis showed that 3 female transgenic mice had hALB expression in their milk. The hALB contents in milk reached 3.54, 0.21 and 3.03 g/L, respectively.HUANG Ying, HUANG Ying, HUANG Zan,YAN Jingbin, MA Zhanlu, SHENG Min,REN Zhaorui, ZENG Yitao & HUANG ShuzhenShanghai Institute of Medical Genetics, Shanghai Children’s Hospital, Shanghai 200040, China 2001Chinese Science Bulletin2001,46,7:3
13Expression of biologically active human clotting factor Ⅸ(hFⅨ) in the mammary gland of transgenic mice显示文摘The DNA of human factor Ⅸ (hFⅨ) gene vector pMCⅨm, which had been proven to be able to express in in vitro and living cells, was introduced into 586 zygotes of Kunming White Mice by positive pressure microinjection technique with manual operation. The 499 survival embryos after microinjection were then transferred into pseudopregnant recipient mice and 216 F 0 pups were born. The analysis of PCR and Southern blot hybridization showed that, of the 216, 6 (2 females and 4 males) were integrated with foreign DNA in their genomes, giving an integration frequency of 3% (6/216). Two F\-0 female transgenic mice could express hFⅨ protein in their milk and the content was over 100 ng/mL as measured with ELISA. The biological activities of hFⅨ in the milk of two F\-0 mice were 44 67% and 79 43%, respectively.HUANG Ying 1, ZHANG Kezhong 2, HUANG Wenying 1, LU Daru 2, HUANG Ying 1, MA Zhanlu 1, REN Zhaorui 1, QIU Xinfang 2, XUE Jinglun 2, ZENG Yitao 1 and HUANG Shuzhen 1* 1. Shanghai Institute of Medical Genetics, Shanghai Children’s Hospita 1998Chinese Science Bulletin1998,43,15:2
14Aberrant functional connectivity network in subjective memory complaint individuals relates to pathological biomarkers显示文摘Background:Individuals with subjective memory complaints(SMC)feature a higher risk of cognitive decline and clinical progression of Alzheimer’s disease(AD).However,the pathological mechanism underlying SMC remains unclear.We aimed to assess the intrinsic connectivity network and its relationship with AD-related pathologies in SMC individuals.Methods:We included 44 SMC individuals and 40 normal controls who underwent both resting-state functional MRI and positron emission tomography(PET).Based on graph theory approaches,we detected local and global functional connectivity across the whole brain by using degree centrality(DC)and eigenvector centrality(EC)respectively.Additionally,we analyzed amyloid deposition and tauopathy via florbetapir-PET imaging and cerebrospinal fluid(CSF)data.The voxel-wise two-sample T-test analysis was used to examine between-group differences in the intrinsic functional network and cerebral amyloid deposition.Then,we correlated these network metrics with pathological results.Results:The SMC individuals showed higher DC in the bilateral hippocampus(HP)and left fusiform gyrus and lower DC in the inferior parietal region than controls.Across all subjects,the DC of the bilateral HP and left fusiform gyrus was positively associated with total tau and phosphorylated tau181.However,no significant between-group difference existed in EC and cerebral amyloid deposition.Conclusion:We found impaired local,but not global,intrinsic connectivity networks in SMC individuals.Given the relationships between DC value and tau level,we hypothesized that functional changes in SMC individuals might relate to pathological biomarkers.Kaicheng Li Xiao Luo Qingze Zeng Yeerfan Jiaerken Xiaojun Xu Peiyu Huang Zhujing Shen Jingjing Xu Chao Wang Jiong Zhou Min-Ming Zhang the Alzheimer’s Disease Neuroimaging Initiative 2018Translational Neurodegeneration2018,7,1:2
15Atom transfer radical polymerization of methyl methacrylate by silica gel supported copper bromide/multidentate amine 显示文摘Shen Y Q Zhu S P Zeng F Q 2000Macromolecules2000,33,15:1
16A proximal method for pseudomonotone type variational-like inequalities显示文摘Schaible S Yao J C Zeng L C 2006Taiwanese Journal of Mathematics2006,10,2:1
17Voltammetric behavior and determination of rutin at a single-walled carbon nanotubes modified gold electrode 显示文摘ZENG B Z WEI S H XIAO F 2006Sensors and Actuators B2006,115,:1
18Comparison of the changes of membrane protective system in rice seedlings during enhancement of chilling resistance by different stress pretreatment显示文摘Zeng S X Wang Y R Li M R 1997Acta Botanica Sinica1997,39,:1
19YAG laser percussion drilling of a functional multi-layer thin plate 显示文摘WANG A H WANG W Y BAI Z K XIE C S ZENG D W SONG W L 2007Optics & Laser Technology2007,39,:1
20Atom transfer radical polymerization of 2-(dimethylamino)ethyl methacrylate in aqueous media 显示文摘Zeng F Shen Y Zhu S et M 2000Polym Sci Part A: Polym Chem2000,38,20:1
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