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Petkov V, Ren Y, Kabekkodu S, Murphy D. Atomic pair distribution functions analysis of disordered low-Z materials. Phys Chem Chem Phys 2013; 15:8544-54. [DOI: 10.1039/c2cp43378h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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227
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Wang J, Ren Y, Zhu Y, Chen JW, Zhu MM, Xu YJ, Tan ZM. Effect of penehyclidine hydrochloride on the incidence of intra-operative awareness in Chinese patients undergoing breast cancer surgery during general anaesthesia. Anaesthesia 2012; 68:136-41. [DOI: 10.1111/anae.12092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2012] [Indexed: 11/30/2022]
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228
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Zheng X, Reddy R, Schipper M, Ren Y, Chang A, Lin J, Orringer M, Kong F. Comparisons of Local Control and Survival of Stereotactic Body Radiation Therapy Versus Surgery for Stage I Non-small Cell Lung Cancer: A Meta-Analysis. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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229
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Ono M, Bell M, Kaita R, Kugel H, Ahn JW, Allain J, Battaglia D, Bell R, Canik J, Ding S, Gerhardt S, Gray T, Guttenfelder W, Hosea J, Jaworski M, Kallman J, Kaye S, LeBlanc B, Maingi R, Mansfield D, McLean A, Menard J, Muller D, Nelson B, Nygren R, Paul S, Raman R, Ren Y, Ryan P, Sabbagh S, Scotti F, Skinner C, Soukhanovskii V, Surla V, Taylor C, Timberlake J, Yuh H, Zakharov L. Recent progress of NSTX lithium program and opportunities for magnetic fusion research. FUSION ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.fusengdes.2011.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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230
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Li G, Hong Q, Ren Y, Lillehoj HS, He C, Ren X. Development of FPV140 antigen-specific ELISA differentiating fowlpox virus isolates from all other viral pathogens of avian origin. Poult Sci 2012; 91:2507-11. [PMID: 22991535 DOI: 10.3382/ps.2012-02297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The FPV140 gene encodes an envelope protein of fowlpox virus (FPV). In this study, the FPV140 gene of FPV Chinese isolate HH2008 was cloned and the comparison of its sequence with other FPV isolates showed it to be highly conserved across all FPV isolates. A recombinant plasmid pET-FPV140 carrying FPV140 gene was constructed and transformed into Escherichia coli. The optimal expression condition for the FPV140 gene was developed and purified FPV140 recombinant protein was used to produce rabbit polyclonal antibody. An indirect ELISA using this anti-FPV140 polyclonal antibody was capable of distinguishing avian FPV isolates from other common avian pathogens such as mycoplasma gallisepticum, infectious laryngotracheitis virus, avian influenza virus, infectious bursal disease virus, and avian infectious bronchitis virus. This ELISA will serve as a useful diagnostic tool for the detection of FPV in clinical samples.
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Yang L, Guo GQ, Chen LY, Huang CL, Ge T, Chen D, Liaw PK, Saksl K, Ren Y, Zeng QS, LaQua B, Chen FG, Jiang JZ. Atomic-scale mechanisms of the glass-forming ability in metallic glasses. PHYSICAL REVIEW LETTERS 2012; 109:105502. [PMID: 23005298 DOI: 10.1103/physrevlett.109.105502] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 07/07/2012] [Indexed: 06/01/2023]
Abstract
The issue, composition dependence of glass-forming ability (GFA) in metallic glasses (MG), has been investigated by systematic experimental measurements coupled with theoretical calculations in Cu-Zr and Ni-Nb alloy systems. It is found that the atomic-level packing efficiency strongly relates to their GFA. The best GFA is located at the largest difference in the packing efficiency of the solute-centered clusters between the glassy and crystal alloys in both MG systems. This work provides an understanding of GFA from atomic level and will shed light on the development of new MGs with larger critical sizes.
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Chen T, Zhang X, Long Y, Yu H, Ran X, Gao Y, Lu H, Xie X, Chen X, Ren Y, Shi J, Tian H. The association of plasma free amino acids with liver enzymes in Type 2 diabetic patients. J Endocrinol Invest 2012; 35:772-5. [PMID: 22071500 DOI: 10.3275/8059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Elevated γ-glutamyl transpeptidase (GGT) and alanine aminotransferase (ALT) could predict the risk of Type 2 diabetes (T2D), but the reason for their elevation was unclear. GGT and ALT mediated the metabolism of many amino acids (AA). Up to now, it was not investigated whether abnormal AA concentration was associated with elevated liver enzymes. AIM This study was to investigate the status of AA in T2D and their relationship with liver enzymes. SUBJECTS AND METHODS A total of 132 T2D patients and 137 healthy controls were recruited. Plasma free AA were measured by high-performance liquid chromatography. The contribution of individual AA to liver enzymes was assessed by stepwise linear regression. RESULTS a) The levels of alanine, valine, leucine, isoleucine, phenylalanine, tyrosine, methionine, glutamate, and lysine were higher while the level of glycine was lower in T2D than in controls (all p<0.01). b) Glutamate contributed to GGT in T2D, and its contribution was even greater than that of waist circumference. Leucine, lysine, and glutamate contributed to ALT. CONCLUSION There were significant differences in plasma AA profile between T2D and controls. Abnormal AA might contribute to elevated liver enzymes. The interaction between AA, liver enzymes, and the risk of T2D should be further investigated by prospective studies.
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Cui M, Hovenier JN, Ren Y, Polo A, Gao JR. Terahertz wavefronts measured using the Hartmann sensor principle. OPTICS EXPRESS 2012; 20:14380-14391. [PMID: 22714499 DOI: 10.1364/oe.20.014380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We demonstrate for the first time that the Hartmann wavefront sensor (HWS) principle can be applied for characterizing the wavefronts of terahertz (THz) electromagnetic radiation. The THz Hartmann wavefront sensor consists of a metallic plate with an array of holes and a two-dimensional scanable pyro-electric detector. The THz radiation with different wavefronts was generated by a far-infrared gas laser operated at 2.5 THz in combination with a number of objects that result in known wavefronts. To measure the wavefront, a beam passing through an array of holes generates intensity spots, for which the positions of the individual spot centroids are measured and compared with reference positions. The reconstructed wavefronts are in good agreement with the model expectations.
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Petkov V, Ren Y, Suchomel M. Molecular arrangement in water: random but not quite. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:155102. [PMID: 22418283 DOI: 10.1088/0953-8984/24/15/155102] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Water defines life on Earth from the cellular to the terrestrial level. Yet the molecular level arrangement in water is not well understood, posing problems in comprehending its very special chemical, physical and biological properties. Here we present high-resolution x-ray diffraction data for water clearly showing that its molecular arrangement exhibits specific correlations that are consistent with the presence of rings of H(2)O molecules linked together by hydrogen bonds into tetrahedral-like units from a continuous network. This level of molecular arrangement complexity is beyond what a simple 'two-state' model of water (Bernal and Fowler 1933 J. Chem. Phys.1 515-48) could explain. It may not be explained by the recently put forward 'chains-clusters of completely uncorrelated molecules' model (Wernet et al 2004 Science 304 995-9) either. Rather it indicates that water is homogeneous down to the molecular level where different water molecules form tetrahedral units of different perfection and/or participate in rings of different sizes, thus experiencing different local environments. The local diversity of this tetrahedral network coupled to the flexibility of the hydrogen bonds that hold it together may explain well the rich phase diagram of water and why it responds non-uniformly to external stimuli such as, for example, temperature and pressure.
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Duan L, Ren Y. Role of notch signaling in osteoimmunology--from the standpoint of osteoclast differentiation. Eur J Orthod 2012; 35:175-82. [DOI: 10.1093/ejo/cjs002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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236
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Chen JH, Ren Y, Seow J, Liu T, Bang WS, Yuk HG. Intervention Technologies for Ensuring Microbiological Safety of Meat: Current and Future Trends. Compr Rev Food Sci Food Saf 2012. [DOI: 10.1111/j.1541-4337.2011.00177.x] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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237
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Wiranto MG, Tutein Nolthenius HE, van der Meer WJ, Engelbrecht WP, Ren Y. [Validity and reliability of digital diagnostic measurements on digital three-dimensional dental models]. Ned Tijdschr Tandheelkd 2012; 119:78-83. [PMID: 22428274 DOI: 10.5177/ntvt.2012.02.11175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Digital three-dimensional dental models are widely used for orthodontic diagnosis. The aim of this clinical study was to assess the validity and reliability of digital diagnostic measurements on digital three-dimensional dental models. Two types of digital three-dimensional dental models and a plaster dental model were made of 10 volunteers. Digital measurements of the tooth width were compared with the physical measurements of the plaster models. None of the digital diagnostic measurements appeared to differ significantly from the physical measurements.
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Zhou Y, Li F, Tian X, Zhu L, Yang Y, Luo X, Ren Y, Pang H. 3.019 ASSOCIATION OF PARKINSON'S DISEASE WITH SIX SNPS LOCATED ON FOUR PARK S GENES IN NORTHERN HAN CHINESE POPULATION. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70755-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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239
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Liu L, Luo XG, Ren Y, Ren ZX, He ZY. 1.017 LANGUAGE ABILITY AFFECTED AND RELATED TO MOTOR SKILLS IN PARKINSON'S DISEASE — A PRELIMINARY REPORT. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70131-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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240
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Zhu L, Zhou Y, Li F, Yang Y, Luo X, Ren Y, Pang H. 3.030 LACK OF ASSOCIATION BETWEEN THREE SNPS ON PARK9, PARK15 AND BST1 GENES AND PARKINSON'S DISEASE IN NORTHERN HAN CHINESE POPULATION. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70766-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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241
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Ren Y, Almagri AF, Fiksel G, Prager SC, Sarff JS, Terry PW. Experimental observation of anisotropic magnetic turbulence in a reversed field pinch plasma. PHYSICAL REVIEW LETTERS 2011; 107:195002. [PMID: 22181614 DOI: 10.1103/physrevlett.107.195002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Indexed: 05/31/2023]
Abstract
In this Letter we report an experimental study of fully developed anisotropic magnetic turbulence in a laboratory plasma. The turbulence has broad (narrow) spectral power in the perpendicular (parallel) direction to the local mean magnetic field extending beyond the ion cyclotron frequency. Its k[see symbol] spectrum is asymmetric in the ion and electron diamagnetic directions. The wave number scaling for the short wavelength fluctuations shows exponential falloff indicative of dissipation. A standing wave structure is found for the turbulence in the minor radial direction of the toroidal plasma.
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Wang P, Zhang F, Ren Y, Wang L. The function of TNF in unstable angina pectoris (UAP) and effect of fasudil to it. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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243
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Ren Y, Zhang X, Li L, Wang W. Improved fixation technique reduces time consuming and increases fish efficiency. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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244
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Zhu SS, Ren Y, Zhang M, Cao JQ, Yang Q, Li XY, Bai H, Jiang L, Jiang Q, He ZG, Chen Q. Wld(S) protects against peripheral neuropathy and retinopathy in an experimental model of diabetes in mice. Diabetologia 2011; 54:2440-50. [PMID: 21739347 DOI: 10.1007/s00125-011-2226-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Accepted: 05/31/2011] [Indexed: 10/18/2022]
Abstract
AIMS/HYPOTHESIS We aimed to evaluate the effect of the mutant Wld(S) (slow Wallerian degeneration; also known as Wld) gene in experimental diabetes on early experimental peripheral diabetic neuropathy and diabetic retinopathy. METHODS The experiments were performed in four groups of mice: wild-type (WT), streptozotocin (STZ)-induced diabetic WT, C57BL/Wld(S) and STZ-induced diabetic C57BL/Wld(S). In each group, intraperitoneal glucose and insulin tolerance tests were performed; blood glucose, glycated haemoglobin and serum insulin were monitored. These mice were also subjected to the following behavioural tests: grasping test, hot-plate test and von Frey aesthesiometer test. For some animals, sciatic-tibial motor nerve conduction velocity, tail sensory nerve conduction velocity and eye pattern electroretinogram were measured. At the end of the experiments, islets were isolated to detect glucose-stimulated insulin secretion, ATP content and extent of apoptosis. The NAD/NADH ratio in islets and retinas was evaluated. Surviving retinal ganglion cells were estimated by immunohistochemistry. RESULTS We found that the Wld(S) gene is expressed in islets and protects beta cells against multiple low doses of STZ by increasing the NAD/NADH ratio, maintaining the ATP concentration, and reducing apoptosis. Consistently, significantly higher insulin concentrations, lower blood glucose concentrations, and better glucose tolerance were observed in Wld(S) mice compared with WT mice after STZ treatment. Furthermore, Wld(S) alleviated abnormal sensory responses, nerve conduction, retina dysfunction and reduction of surviving retinal ganglion cells in STZ-induced diabetic models. CONCLUSIONS/INTERPRETATION We provide the first evidence that expression of the Wld(S) gene decreases beta cell destruction and preserves islet function in STZ-induced diabetes, thus revealing a novel protective strategy for diabetic models.
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Yang L, Tao J, Tang X, Wang Y, He X, Xu G, Ren Y, Tu Y. Prevalence and correlation of conventional and lupus-specific risk factors for cardiovascular disease in Chinese systemic lupus erythematosus patients. J Eur Acad Dermatol Venereol 2011; 26:95-101. [DOI: 10.1111/j.1468-3083.2011.04211.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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246
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Ren Y, Chiam SY, Chim WK. Diameter dependence of the void formation in the oxidation of nickel nanowires. NANOTECHNOLOGY 2011; 22:235606. [PMID: 21483086 DOI: 10.1088/0957-4484/22/23/235606] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this work, we show how the vacancy diffusion length scale must be considered, in the context of the diameter of a nanowire, when utilizing the Kirkendall phenomenon in the fabrication of metal oxide nanotubes starting from metal nanowires. We find that the diameter of the nanowire relative to the diffusion length scale of the vacancy will affect greatly the type of voids that can be generated. By using a larger diameter nickel nanowire, we show that segmented heterojunction void formation can be avoided and that the resulting structure will serve as a precursory 'template' for subsequent oxidation processes at high temperatures. In doing so, we can prevent the formation of bamboo-like structures and obtain uniform nickel oxide nanotubes through direct oxidation that has proven to be difficult previously. The result from this work is also significant as the interplay of vacancy diffusion length and nanostructure dimension is important in the oxidation of other types of metal nanostructures, especially when void formation and the Kirkendall effect are involved.
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Shan B, Wang H, Ren Y, Tu X, Jiang Z. Phase II study of combination paclitaxel and carboplatin in patients with advanced or recurrent endometrial cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e15580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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248
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Chen WB, Gao R, Su YY, Zhao JW, Zhang YZ, Wang L, Ren Y, Fan CQ. Valproate versus diazepam for generalized convulsive status epilepticus: a pilot study. Eur J Neurol 2011; 18:1391-6. [PMID: 21557791 DOI: 10.1111/j.1468-1331.2011.03420.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Evidence-based data to guide the management of status epilepticus (SE) after failure of primary treatment are still scarce and the alternate needs to be found when phenytoin (PHT) is not available or contraindicated. Comparison of intravenous (IV) valproate (VPA) and diazepam (DZP) infusion has not been conducted in adults with SE. This prospective randomized controlled trial is thus designed to evaluate the relative efficacy and safety of IV VPA and continuous DZP infusion as second-line anticonvulsants. METHODS After failure of first-line anticonvulsants treatment, patients with generalized convulsive status epilepticus (GCSE) were randomized to receive either IV VPA or continuous DZP infusion. Primary outcome was the proportion of patients with effective control. Side effects were also evaluated. RESULTS There were 66 cases enrolled, with the mean age of 41 ± 21 years. Seizure was controlled in 56% (20/36) of the DZP group and 50% (15/30) of the VPA group (P = 0.652). No patient in the VPA group developed respiratory depression, hypotension, or hepatic dysfunction, whereas in the DZP group, 5.5% required ventilation and 5.5% developed hypotension. Time (hour) for regaining consciousness after control was near-significantly longer in the DZP group [13(3.15-21.5)] than in the VPA group [3(0.75-11)] (P = 0.057). Virus encephalitis and long duration of GCSE were independent risk factors of drug resistance. CONCLUSIONS Both IV VPA and continuous DZP infusion are effective second-line anticonvulsants for GCSE. IV VPA was well tolerated and free of respiratory depression and hypotension, which may develop in the DZP group. Outcome parameters were not significantly different between groups.
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Ren Y, Kaye SM, Mazzucato E, Guttenfelder W, Bell RE, Domier CW, LeBlanc BP, Lee KC, Luhmann NC, Smith DR, Yuh H. Density gradient stabilization of electron temperature gradient driven turbulence in a spherical tokamak. PHYSICAL REVIEW LETTERS 2011; 106:165005. [PMID: 21599377 DOI: 10.1103/physrevlett.106.165005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2010] [Indexed: 05/30/2023]
Abstract
In this Letter we report the first clear experimental observation of density gradient stabilization of electron temperature gradient driven turbulence in a fusion plasma. It is observed that longer wavelength modes, k(⊥)ρ(s) ≲ 10, are most stabilized by density gradient, and the stabilization is accompanied by about a factor of 2 decrease in the plasma effective thermal diffusivity.
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Ren Y, Wu Z, Ondruschka B, Braeutigam P, Franke M, Nehring H, Hampel U. Oxidation of Phenol by Microbubble-Assisted Microelectrolysis. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201000534] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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