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| 1 | Preventive effect of a pectic polysaccharide of the common cranberry Vaccinium oxycoccos L. on acetic acid-induced colitis in mice显示文摘AIM: To study isolation and chemical characterization of pectin derived from the common cranberry Vaccinium oxycoccos L. (oxycoccusan OP) and the testing of its preventive effect on experimental colitis.METHODS: Mice were administrated orally with OP two days prior to a rectal injection of 5% acetic acid and examined for colonic damage 24 h later. Colonic inflammation was characterized by macroscopical injury and enhanced levels of myeloperoxidase activity measured spectrophotometrically with o-phenylene diamine as the substrate. The mucus contents of the colon were determined by the Alcian blue dye binding method. Vascular permeability was estimated using 4% Evans blue passage after i.p. injection of 0.05 mol/L acetic acid. RESULTS: In the mice treated with OP, colonic macroscopic scores (1.1 ± 0.4 vs 2.7, P < 0.01) and the total square area of damage (10 ± 2 vs 21 ± 7, P < 0.01) were significantly reduced when compared with the vehicle-treated colitis group. OP was shown to decrease the tissue myeloperoxidase activity in colons (42 ± 11 vs 112 ± 40, P < 0.01) and enhance the amount of mucus of colitis mice (0.9 ± 0.1 vs 0.4 ± 0.1, P < 0.01). The level of colonic malondialdehyde was noted to decrease in OP-pretreated mice (3.6 ± 0.7 vs 5.1 ± 0.8, P < 0.01). OP was found to decrease the inflammatory status of mice as was determined by reduction of vascular permeability (161 ± 34 vs 241 ± 21, P < 0.01). Adhesionof peritoneal neutrophils and macrophages was also shown to decrease after administration of OP (141 ± 50 vs 235 ± 37, P < 0.05).CONCLUSION: Thus, a preventive effect of pectin from the common cranberry, namely oxycoccusan OP, on acetic acid-induced colitis in mice was detected. A reduction of neutrophil infiltration and antioxidant action may be implicated in the protective effect of oxycoccusan. | Sergey V Popov Pavel A Markov Ida R Nikitina Sergey Petrishev Vasily Smirnov Yury S Ovodov | 2006 | World Journal of Gastroenterology2006，12，41： | 9 |
| 2 | 光动力作用对铜绿假单胞杆菌杀伤效应的研究显示文摘目的:探讨不同的光动力剂量下光动力疗法(photodynam ic therapy,PDT)对体外培养的铜绿假单胞杆菌的杀伤效应。方法:以耐药性较强的铜绿假单胞杆菌(Pseudom onas aeruginos,P.aeruginosa)为研究对象,采用亚甲基蓝(m ethylene b lue,MB)作为光敏剂,用656 nm的激光作为光源(m axoutput=300 mW),对不同系列浓度的MB进行不同剂量的光照,用菌落计数的办法来观测PDT对铜绿假单胞杆菌的杀伤作用;同时利用血培养基检测铜绿假单胞杆菌致病性的改变。结果:在光照剂量相同的情况下,浓度适中(131.7 m ol)的亚甲基蓝溶液能够有效地杀伤铜绿假单胞杆菌,使其致病性降低;而浓度较高(1 317 m ol)或较低(13.17 m ol)的亚甲基蓝溶液对铜绿假单胞杆菌的杀伤作用相对较弱。结论:光动力作用对体外培养的铜绿假单胞杆菌具有明确的杀伤作用,但是其效果和剂量关系密切,所以在治疗过程中必须寻找合适的光敏剂剂量。 | 周斯博 张智红 Onega V Ulianova Sergey S Ulyanov 骆清铭 | 2006 | 激光生物学报2006，15，5： | 6 |
| 3 | Numerical and Experimental Investigation on Heat Propagation Through Composite Sinter Bed With Non-Uniform Voidage:Part Ⅰ Mathematical Model and Its Experimental Verification显示文摘The mechanisms of heat transfer through the sinter beds of the MEBIOS process are discussed and their comprehensive mathematical model is proposed.The MEBIOS process,the concept of which has been proposed earlier by the authors,allows using both coarse and fine particles of iron ores in the same sinter bed.The study includes two parts.The first part describes the model content and the results of its experimental verification.The model accounts for coal combustion,limestone decomposition,moisture evaporation/condensation,and melting/solidifying of solid phases.The model predictions are in good agreement with the experimental data.Typical numerical results of the sintering process and the key parameters influencing the process efficiency are discussed in the second part of the study. | Sergey V Komarov Hiroyuki Shibata Naohito Hayashi Eiki Kasai | 2010 | Journal of Iron and Steel Research(International)2010，17，10： | 5 |
| 4 | Contribution of functional KIR3DL1 to ankylosing spondylitis显示文摘Increasing evidence points to a role for killer immunoglobulin-like receptors(KIRs)in the development of autoimmune diseases.In particular,a positive association of KIR3DS1(activating receptor)and a negative association of KIR3DL1(inhibitory receptor)alleles with ankylosing spondylitis(AS)have been reported by several groups.However,none of the studies analyzed these associations in the context of functionality of polymorphic KIR3DL1.To better understand how the KIR3DL1/3DS1 genes determine susceptibility to AS,we analyzed the frequencies of alleles and genotypes encoding functional(KIR3DL1*F)and non-functional(KIR3DL1*004)receptors.We genotyped 83 AS patients and 107 human leukocyte antigen(HLA)-B27-positive healthy controls from the Russian Caucasian population using a two-stage sequence-specific primer PCR,which distinguishes KIR3DS1,KIR3DL1*F and KIR3DL1*004 alleles.For the patients carrying two functional KIR3DL1 alleles,those alleles were additionally genotyped to identify KIR3DL1*005 and KIR3DL1*007 alleles,which are functional but are expressed at low levels.KIR3DL1 was negatively associated with AS at the expense of KIR3DL1*F but not of KIR3DL1*004.This finding indicates that the inhibitory KIR3DL1 receptor protects against the development of AS and is not simply a passive counterpart of the segregating KIR3DS1 allele encoding the activating receptor.However,analysis of genotype frequencies indicates that the presence of KIR3DS1 is a more important factor for AS susceptibility than the absence of KIR3DL1*F.The activation of either natural killer(NK)or T cells via the KIR3DS1 receptor can be one of the critical events in AS development,while the presence of the functional KIR3DL1 receptor has a protective effect.Nevertheless,even individuals with a genotype that carried two inhibitory KIR3DL1 alleles expressed at high levels could develop AS. | Ivan V Zvyagin Ilgar Z Mamedov Olga V Britanova Dmitriy B Staroverov Evgeni L Nasonov Anna G Bochkova Anna V Chkalina Alexei A Kotlobay Dmitriy O Korostin Denis V Rebrikov Sergey Lukyanov Yuri B Lebedev Dmitriy M Chudakov | 2010 | Cellular & Molecular Immunology2010，7，6： | 5 |
| 5 | Dissolution mechanism of calcium apatites in acids:A review of literature显示文摘Eight dissolution models of calcium apatites(both fluorapatite and hydroxyapatite) in acids were drawn from the published literature,analyzed and discussed.Major limitations and drawbacks of the models were conversed in details.The models were shown to deal with different aspects of apatite dissolution phenomenon and none of them was able to describe the dissolution process in general.Therefore,an attempt to combine the findings obtained by different researchers was performed which resulted in creation of the general description of apatite dissolution in acids.For this purpose,eight dissolution models were assumed to complement each other and provide the correct description of the specific aspects of apatite dissolution.The general description considers all possible dissolution stages involved and points out to some missing and unclear phenomena to be experimentally studied and verified in future.This creates a new methodological approach to investigate reaction mechanisms based on sets of affine data,obtained by various research groups under dissimilar experimental conditions. | Sergey V Dorozhkin | 2012 | World Journal of Methodology2012，2，1： | 5 |
| 6 | CD133 expression is not restricted to stem cells, and both CD133^sup +^ and CD133^sup -^ metastatic colon cancer cells initiate tumors显示文摘 | Shmelkov Sergey V Butler Jason M Hooper Andrea T Hormigo Adilia Kushner Jared Milde Till Clair Ryan St Baljevic Muhamed White Ian Jin David K Chadburn Amy Murphy Andrew J Valenzuela David M Gale Nicholas W Thurston Gavin Yancopoulos George | 2008 | Journal of Clinical Investigation2008，，： | 2 |
| 7 | Effect of fluence and ambient environment on the surface and structural modification of femtosecond laser irradiated Ti显示文摘Under certain conditions, ultrafast pulsed laser interaction with matter leads to the formation of self-organized conical as well as periodic surface structures(commonly reffered to as, laser induced periodic surface structures, LIPSS). The purpose of the present investigations is to explore the effect of fsec laser fluence and ambient environments(Vacuum &O_2) on the formation of LIPSS and conical structures on the Ti surface. The surface morphology was investigated by scanning electron microscope(SEM). The ablation threshold with single and multiple(N = 100) shots and the existence of an incubation effect was demonstrated by SEM investigations for both the vacuum and the O_2 environment. The phase analysis and chemical composition of the exposed targets were performed by x-ray diffraction(XRD) and energy dispersive x-ray spectroscopy(EDS), respectively. SEM investigations reveal the formation of LIPSS(nano & micro). FFT d-spacing calculations illustrate the dependence of periodicity on the fluence and ambient environment. The periodicity of nano-scale LIPSS is higher in the case of irradiation under vacuum conditions as compared to O_2. Furthermore, the O2 environment reduces the ablation threshold. XRD data reveal that for the O_2 environment, new phases(oxides of Ti) are formed. EDS analysis exhibits that after irradiation under vacuum conditions, the percentage of impurity element(Al) is reduced. The irradiation in the O_2 environment results in 15% atomic diffusion of oxygen. | Umm-i-Kalsoom Shazia Bashir Nisar Ali M Shahid Rafique Wolfgang Husinsky Chandra S R Nathala Sergey V Makarov Narjis Begum | 2016 | Chinese Physics B2016，25，1： | 2 |
| 8 | Linagliptin alleviates fatty liver disease in diabetic db/db mice显示文摘AIM To study the effects of linagliptin on the structural signs of non-alcoholic fatty liver disease(NAFLD) in db/db mice. METHODS Male diabetic db /db mice(BKS.Cg-Dock7m+/+Leprdb/J) aged 10 wk received the dipeptidyl peptidase 4(DPP4) inhibitor linagliptin(10 mg/kg) or saline as a placebo once per day by gavage for 8 wk. Intact db/db mice served as controls. Structural changes in the liver were analyzed from light and electron microscopic images of sections from intact, placebo-treated and linagliptin-treated animals. We estimated the changes in hepatocytes, sinusoidal cells, liver microvasculature and lymphatic roots. Hepatic staining for lymphatic vessel endothelial hyaluronan receptor-1(LYVE-1) was assessed by immunohistochemistry. RESULTS In 18-wk-old diabetic mice, liver steatosis(predominantly microvesicular and mediovesicular steatosis) was accompanied by dilation of the roots of the lymphatic system, interlobular blood vessels and bile canaliculi. Compared to saline-treated mice, linagliptin-treated mice exhibited a reduction in the mean numeral densities of hepatocytes with lipid droplets(92.4% ± 1.7% vs 64.9% ± 5.8% per field of view, P = 0.0002) and a lower proportion of hepatocytes with a high density of lipid droplets(20.7% ± 3.6% vs 50.4% ± 3.1%, P = 0.0007). We observed heterogeneous hepatocytes and relatively preserved cell structures in the linagliptin group. Dilation of blood and lymphatic vessels, as well as ultrastructural changes in the hepatocyte endoplasmic reticulum and mitochondria, were alleviated by linagliptin treatment. In intact and placebo-treated mice, immunohistochemical staining for LYVE-1 was observed in the endothelial cells of interlobular lymphatic vessels and on the membranes of some endothelial sinusoidal cells. We observed an enlarged LYVE-1 reaction area in linagliptin-treated mice compared to intact and placebo-treated mice. The improvement in the structural parameters of the liver in linagliptin-treated mice was independent to changes in the plasma glucose levels. CONCLUSION The DPP4 inhibitor linagliptin alleviates liver steatosis and structural changes in the hepatic microvasculature and lymphatic roots in a model of NAFLD in diabetic db/db mice. | Svetlana V Michurina Irina Ju Ishenko Vadim V Klimontov Sergey A Archipov Natalia E Myakina Marina A Cherepanova Eugenii L Zavjalov Galina V Koncevaya Vladimir I Konenkov | 2016 | World Journal of Diabetes2016，7，19： | 2 |
| 9 | Design and discovery of materials guided by theory and computation显示文摘Computational materials science and engineering has emerged as an interdisciplinary subfield spanning materials science and engineering,condensed matter physics,chemistry,mechanics and engineering in general.Modern materials research often requires a close integration of computation and experiments in order to fundamentally understand the materials structures and properties and their relation to synthesis and processing.A number of computational methods and tools at different spatiotemporal scales are now well established,ranging from electronic structure calculations based on density functional theory,1,2 atomic molecular dynamics3,4 and Monte Carlo techniques,5 phase-field method6–9 to continuum macroscopic approaches.Over the last few years,computational materials activities have been steadily moving from technique development and purely computational studies of materials towards discovering and designing new materials guided by computation,machine learning and data mining or by a closely tied combination of computational predictions and experimental validation.This movement is being further accelerated by the recent initiatives by various government agencies in the United States,Europe,China and other countries to pursue the materials genome initiative,10 integrated computational materials engineering11–13 as well as the‘Big Data’initiative. | Long-Qing Chen Li-Dong Chen Sergei V Kalinin Gerhard Klimeck Sanat K Kumar Jörg Neugebauer Ichiro Terasaki | 2015 | npj Computational Materials2015，，1： | 2 |
| 10 | Ramucirumab plus docetaxel versus placebo plus docetaxel for second-line treatment of stage IV non-small-cell lung cancer after disease progression on platinum-based therapy (REVEL): a multicentre, double-blind, randomised phase 3 trial显示文摘 | Edward B Garon Tudor-Eliade Ciuleanu Oscar Arrieta Kumar Prabhash Konstantinos N Syrigos Tuncay Goksel Keunchil Park Vera Gorbunova Ruben Dario Kowalyszyn Joanna Pikiel Grzegorz Czyzewicz Sergey V Orlov Conrad R Lewanski Michael Thomas Paolo Bidoli Shaker | 2014 | The Lancet2014，，： | 2 |
| 11 | Flexible transgastric peritoneoscopy: a novel approach to diagnostic and therapeutic interventions in the peritoneal cavity显示文摘 | Anthony N Kalloo Vikesh K Singh Sanjay B Jagannath Hideaki Niiyama Susan L Hill Cheryl A Vaughn Carolyn A Magee Sergey V Kantsevoy | 2004 | Gastrointestinal Endoscopy2004，，1： | 2 |
| 12 | Computer simulations of electrokinetic injection techniques in microfluidic devices 显示文摘 | Sergey V E Stephen C J Ramsey J M | 2000 | Anal Chem2000，72，15： | 1 |
| 13 | Mutant TEM β-lactamase producing resistance to ceftazidine,ampicillins,and β-lactamase inhibitors显示文摘 | Sergei V Dasantila G | 2002 | J Antimicrob Chemother2002，46，： | 1 |
| 14 | Biosensors based on enzyme field - effect transistors for determination of some substrates and inhibitors 显示文摘 | Sergei V D Alexey P S Yaroslav I K | 2003 | Anal Bioanal Chem2003，377，3： | 1 |
| 15 | Design,synthesis and biological evaluation of novel potent MDM2/p53 small-molecule inhibitors显示文摘 | Yan A I Sergei V V Elena K B | 2015 | Bioorg Med Chem Lett2015，25，2： | 1 |
| 16 | Selection and characterization of β-lactam-β-lactamase inactivator-resistant mutants following PCR mutagenesis of the TEM-1 β-lactamase gene显示文摘 | Sergei B V Bruce G Lakshmi P K | 1998 | Antimicrob Agents Chemother1998，42，： | 1 |
| 17 | Efficent synthesis of 1-alkyl(aralkyl)-3-methyl(ethyl)imidazolium halides:precursors for room-temperature ionic liquids显示文摘 | Dzyuba Sergei V Bartsch Richard A | 2001 | J Heterocyclic Chem2001，38，： | 1 |
| 18 | Variable selection in near-infrared spectroscopy:Benchmarking of feature selection methods on biodiesel data显示文摘 | Roman M Balabin Sergey V Smirnov | 2011 | Analytica Chimica Acta2011，692，： | 1 |
| 19 | Synthesis of protective Mo-Si-B coatings in molten salts and their oxidation behavior in an air-water mixture 显示文摘 | Sergey A Kuznetsov Evgeny V Rebov Martijn J M M | 2006 | Surface and Coatings Technology2006，201，34： | 1 |
| 20 | Mechanistic Study of Thermal Behaviour and Combustion Performance of Carbon Fibre-epoxy Resin Composites Fire Retarded with a Phosphorus-based Curing System显示文摘 | Sergei V Levchik Giovanni Camino Maria Paola Luda | 1996 | Polymer Degradation and Stability1996，54，3： | 1 |
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