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Lapinskas J, Smagacz P, Xu Y, Taleyarkhan R. Tension metastable fluid nuclear particle Detector—Qualification and comparisons. NUCLEAR ENGINEERING AND DESIGN 2009. [DOI: 10.1016/j.nucengdes.2009.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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1627
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Xu Y, Webster J, Lapinskas J, Taleyarkhan R. NEUTRON-INDUCED CAVITATION TENSION METASTABLE PRESSURE THRESHOLDS OF LIQUID MIXTURES. NUCLEAR ENGINEERING AND TECHNOLOGY 2009. [DOI: 10.5516/net.2009.41.7.979] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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1628
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Buntkowsky G, Limbach HH, Walaszek B, Adamczyk A, Xu Y, Breitzke H, Schweitzer A, Gutmann T, Wächtler M, Amadeu N, Tietze D, Chaudret B. Mechanisms of Dipolar Ortho/Para-H2O Conversion in Ice. Z PHYS CHEM 2009. [DOI: 10.1524/zpch.2008.5359] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
In this paper a possible explanation for an unexpected ortho/para-water ratio in the gas clouds of comets is given. The description is based on the quantum-mechanical density matrix formalism and the spin temperature concept. Only the nuclear spin system is treated quantum-mechanically. Employing the model of a four spin system, created by two nearest neighbour water molecules, spin eigenstates and their dynamics under the influence of their mutual dipolar interactions are studied. It is shown that a fast conversion between ortho- and para-states occurs on a msec time scale, caused by the intermolecular homonuclear magnetic dipolar interaction. Moreover the spin eigenstates of water in an ice crystal are determined by magnetic dipolar interactions and are not given by normal ortho- and para-H2O states of gaseous water. As a result of this the spin temperature of gaseous water evaporated from ice depends strongly on its evaporation history and the ortho/para-ratio of water molecules are only an indirect measure of the temperature of ice crystals from where they descend. This result could explain the unexpected experimentally observed ortho/para-ratios in the clouds of comets.
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1629
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Xu Y, Deng Z, Zeng J, Gao S, Yang B. Genomic full length sequence of HLA-Cw*030301, identified by cloning and sequencing. ACTA ACUST UNITED AC 2009; 74:452-3. [PMID: 19765259 DOI: 10.1111/j.1399-0039.2009.01352.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Genomic full length sequence of human leukocyte antigen (HLA)-Cw*030301 that differs from Cw*030401 by two-nucleotide exchange at nt 473 (G>A) in exon 2 and nt 3033 (G>C) in 3'UTR, was identified by cloning and sequencing from a male Chinese donor.
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Shou Z, Xiao H, Xu Y, Wang Y, Yang Y, Jiang H, Chen J, Yamada K, Miyamoto K. SHARP-2 gene silencing by lentiviral-based short hairpin RNA interference prolonged rat kidney transplant recipients' survival time. J Int Med Res 2009; 37:766-78. [PMID: 19589260 DOI: 10.1177/147323000903700320] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Split- and hairy-related protein-2 (SHARP-2) controls the expression of interleukin-2 (IL-2) and interferon-gamma (IFN-gamma), which both play a key role in transplant rejection. This study was designed to investigate whether SHARP-2 short hairpin RNA interference (shRNAi) could prolong the survival of rat kidney transplant recipients. A lentiviral-based shRNAi construct, LV-SHARP-2iC, showed a SHARP-2 gene silencing efficiency of 84% in normal rat kidney cells. In activated T-cells, SHARP-2 gene silencing with the LV-SHARP-2iC construct resulted in 61% and 69% down-regulation of IL-2 and IFN-gamma, respectively, compared with a scramble control construct. When donor kidney was perfused with 5 x 10(7) transforming units of the LV-SHARP-2iC construct, the median survival time of the transplant recipients was prolonged by 4 - 5 days compared with control groups. In conclusion, recombinant lentiviral LV-SHARP-2iC construct effectively silenced SHARP-2 gene expression, which reduced IL-2 and IFN-gamma mRNA expression and prolonged rat kidney transplant recipients' survival.
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1631
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Xu Y, Deng Z, Zeng J, Gao S, Wang D. A novel HLA-Cw*04 allele, Cw*04010103, identified by genomic full length cloning and sequencing. ACTA ACUST UNITED AC 2009; 74:453-5. [PMID: 19737366 DOI: 10.1111/j.1399-0039.2009.01353.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A novel human leukocyte antigen-Cw*04 allele, Cw*04010103, was identified by genomic full length cloning and sequencing from a male Chinese donor. It differs from the closest related allele Cw*04010101 by one nucleotide exchange at nt 1111 (G>A) in intron 3.
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Chen L, Wang H, Zeng Q, Xu Y, Sun L, Xu H, Ding L. On-line Coupling of Solid-Phase Extraction to Liquid Chromatography--A Review. J Chromatogr Sci 2009; 47:614-23. [DOI: 10.1093/chromsci/47.8.614] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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1633
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Zhu B, Xu Y, Fan W. Study of tetramethylpyrazine formation in fermentation system from glucose by Bacillus subtilis XZ1124. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.224] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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1634
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bruna E, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, de la Barca Sánchez MC, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Clarke RF, Codrington MJM, Corliss R, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Das S, Dash S, Daugherity M, De Silva LC, Dedovich TG, DePhillips M, Derevschikov AA, de Souza RD, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Mazumdar MRD, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Huo L, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kopytine M, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kuhn C, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li C, Li N, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Raniwala R, Raniwala S, Redwine R, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, de Toledo AS, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, Molen AMV, Vanfossen JA, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu Y, Xu Z, Yang P, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. K/pi Fluctuations at relativistic energies. PHYSICAL REVIEW LETTERS 2009; 103:092301. [PMID: 19792791 DOI: 10.1103/physrevlett.103.092301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Indexed: 05/28/2023]
Abstract
We report K/pi fluctuations from Au + Au collisions at sqrt[s(NN)]= 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/pi fluctuations in central collisions show little dependence on incident energy and are on the same order as those from NA49 at the Super Proton Synchrotron in central Pb + Pb collisions at sqrt[s(NN)]=12.3 and 17.3 GeV. We report results for the collision centrality dependence of K/pi fluctuations and results for charge-separated fluctuations. We observe that the K/pi fluctuations scale with the charged particle multiplicity density.
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Zou J, Xu Y, Yang H. A Comparison of Proximal Femoral Nail Antirotation and Dynamic Hip Screw Devices in Trochanteric Fractures. J Int Med Res 2009; 37:1057-64. [PMID: 19761688 DOI: 10.1177/147323000903700410] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This prospective, randomized study compared the functional outcome and complications associated with a proximal femoral nail antirotation (PFNA) device with those of a traditional extramedullary device, the dynamic hip screw (DHS), in patients with trochanteric fracture. A total of 121 patients were randomized to the PFNA group ( n = 58) or the DHS group ( n = 63). Perioperative information and complications were recorded, and assessments of functional outcome were made. The DHS group required a longer operative time and was associated with greater blood loss than the PFNA group. The re-operation rate was lower in the PFNA group compared with the DHS group, especially in patients with unstable fractures, although there was no statistically significant difference in the overall complication rate between the two groups. There were no significant differences in functional outcome between the PFNA and the DHS groups. In conclusion, the PFNA device is useful in the treatment of trochanteric fractures.
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Liao T, Guo QL, Jin SW, Cheng W, Xu Y. Comparative responses in rare minnow exposed to 17beta-estradiol during different life stages. FISH PHYSIOLOGY AND BIOCHEMISTRY 2009; 35:341-349. [PMID: 18704734 DOI: 10.1007/s10695-008-9247-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2008] [Accepted: 07/02/2008] [Indexed: 05/26/2023]
Abstract
Present in the excrement of humans and animals, 17beta-estradiol (E(2)) has been detected in the aquatic environment in a range from several nanograms to several hundred nanograms per liter. In this study, the sensitivities of rare minnows during different life stages to E(2) at environmentally relevant (5, 25, and 100 ng l(-1)) and high (1000 ng l(-1)) concentrations were compared using vitellogenin (VTG) and gonad development as biomarkers under semistatic conditions. After 21 days of exposure, VTG concentrations in whole-body homogenates were analyzed; the results indicated that the lowest observed effective concentration for VTG induction was 25 ng l(-1) E(2) in the adult stage, but 100 ng l(-1) E(2) in the larval and juvenile stages. After exposure in the early life stage, the larval and juvenile fish were transferred to clean water until gonad maturation. No significant difference in VTG induction was found between the exposure and control groups in the adults. However, a markedly increased proportion of females and appearance of hermaphrodism were observed in the juvenile-stage group exposed to 25 ng l(-1) E(2). These results showed that VTG induction in the adult stage is more sensitive than in larval and juvenile stages following exposure to E(2). The juvenile stage may be the critical period of gonad development. Sex ratio could be a sensitive biomarker indicating exposure to xenoestrogens in early-life-stage subchronic exposure tests. The results of this study provide useful information for selecting sensitive biomarkers properly in aquatic toxicology testing.
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Zhao Y, Xu Y, Li J, Fan W, Jiang W. Profile of volatile compounds in 11 brandies by headspace solid-phase microextraction followed by gas chromatography-mass spectrometry. J Food Sci 2009; 74:C90-9. [PMID: 19323737 DOI: 10.1111/j.1750-3841.2008.01029.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A headspace solid-phase microextraction (HS-SPME) method coupled with gas chromatography-mass spectrometry (GC-MS) was applied for the qualitative or semiquantitative characterization of brandy volatiles. SPME variables (SPME fiber, extraction temperature and time, and ethanol concentration) were optimized. A total of 144 compounds were from the brandies' volatiles, tentatively identified or identified by comparing mass spectra and retention indices of the standards or from literature. Of these, 57 are common to 11 brandies. They were mainly represented by esters and alcohols, such as 2-methyl propanol, 3-methyl butanol, 1-hexanol, ethyl octanoate, and ethyl decanoate, which were quantitatively determined. Chromatographic peaks were integrated using selective ion method (SIM) and the semiquantitative data analyzed using principal component analysis (PCA) and cluster analysis (CA) to study relationships between volatile composition and brandy. Eleven brandies were differentiated into 3 groups: 1 for Hennessy VSOP and XO samples, 1 for Changyu PEGASE VSOP and XO-1, 2, 3 samples, and the other for Changyu PEGASE brandy and VO, Taro brandy, Baiyang River brandy, and Wealth XO samples. The classification of groups is consistent with the brandy samples by variety and grade.
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Xu Y, Gong B, Yang Y, Awasthi YC, Woods M, Boor PJ. Glutathione-S-Transferase Protects against Oxidative Injury of Endothelial Cell Tight Junctions. ACTA ACUST UNITED AC 2009; 14:333-43. [DOI: 10.1080/10623320701746263] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Cole MF, Fitzsimmons SP, Sheridan MJ, Xu Y. Humoral Immunity to Commensal Bacteria: Quantification, Specificity and Avidity of Serum IgG and IgM Antibodies Reactive with the Oral BacteriaPrevotella intermediaandPrevotella nigrescens. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2009. [DOI: 10.3109/08910609509140102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lin CH, Wang CL, Huang PF, Liu YW, Ke M, Xu Y, Yu CX. Genetic polymorphism of catechol O-methyltransferase and pharmacokinetics of levodopa in healthy Chinese subjects. METHODS AND FINDINGS IN EXPERIMENTAL AND CLINICAL PHARMACOLOGY 2009; 31:389-395. [PMID: 19798454 DOI: 10.1358/mf.2009.31.6.1386990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We studied the distribution of catechol O-methyltransferase (COMT) genotypes in the Chinese Fujian Han population and explored the potential effect of COMT genetic polymorphism on the pharmacokinetics of levodopa. Polymerase chain reaction (PCR) was employed in the COMT genotype analysis of 166 volunteers. After a single oral dose of levodopa/benserazide, the plasma concentration of levodopa was determined by high-performance liquid chromatography (HPLC) with electrochemical detection (ECD). In the 166 subjects, the frequencies of G/G, G/A and A/A COMT genotypes were 58.4%, 36.7% and 4.9%, respectively. The frequency of the homozygous A/A genotype was much lower than in caucasians and Southwest Asians. COMT activity of erythrocytes in the G/A genotype group was significantly lower than in the G/G genotype group but significantly higher than in the A/A genotype group. There was no significant difference in pharmacokinetic parameters, including t(1/2alpha), t(1/2beta), AUC(0-infinity), CL/F, C(max), t(max) and V/F. The frequency of COMT genotypes in the Chinese Fujian Han population, which is related to COMT enzyme activity, is significantly different from that in caucasians and Southwest Asians. The pharmacokinetic characteristics of levodopa in healthy Chinese subjects may not be dependent on their COMT genotype status. From the 166 volunteers, 5 G/G, 5 G/A and 4 A/A genotype male subjects were recruited for the study of levodopa pharmacokinetics.
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Morey RA, Petty CM, Xu Y, Hayes JP, Wagner HR, Lewis DV, LaBar KS, Styner M, McCarthy G. A Comparison of Automated Segmentation and Manual Tracing for Quantification of Hippocampal and Amygdala Volumes. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70541-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Hou J, Wei JM, Yu ZY, Xu Y, Li J, Tang DN. The effect of Malononitrilamides (FK778) on phenotypic properties of human peripheral dendritic cells. Transplant Proc 2009; 41:1859-61. [PMID: 19545744 DOI: 10.1016/j.transproceed.2009.02.068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2008] [Revised: 06/13/2008] [Accepted: 02/09/2009] [Indexed: 11/27/2022]
Abstract
BACKGROUND FK778, a malononitrilamide analogue of lefunomide, is currently a promising immunosuppressive drug. Because the cellular and molecular mechanisms underlying the effects of FK778 are not entirely clarified. We studied its effects on human peripheral dendritic cells. METHODS Peripheral blood mononuclear cells (PBMC) from 12 healthy volunteers were isolated by density separation over Ficoll solution. After resuspension in adaptive immunotherapy medium (AIM)-V medium, they were cultured without exogenous growth factors. The study group was treated with FK 778 (50 microg/mL) or Rapamycin (10 ng/mL). The phenotype of dendritic cell was ascertained by indirect immunoflurescence for analysis by flow cytometry. RESULTS Compared with the Rapamycin-treated controls, the expressions of CD80, CD83, CD86, HLA-DA, CD54, CD62, CCR5, and CCR7 in the FK778-treated myeloid dendritic cells and the expression of CD80, CD83, CD86, HLA-DA, and CD54 in the FK778-treated plasmacytoid dendritic cells were significantly down-regulated. CONCLUSION FK778 inhibited the differentiation and maturation of dendritic cells.
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Sampaio RMM, Timmers RA, Xu Y, Keesman KJ, Lens PNL. Selective precipitation of Cu from Zn in a pS controlled continuously stirred tank reactor. JOURNAL OF HAZARDOUS MATERIALS 2009; 165:256-265. [PMID: 19019537 DOI: 10.1016/j.jhazmat.2008.09.117] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Revised: 09/25/2008] [Accepted: 09/26/2008] [Indexed: 05/27/2023]
Abstract
Copper was continuously and selectively precipitated with Na(2)S to concentrations below 0.3 ppb from water containing around 600 ppm of both Cu and Zn in a Continuously Stirred Tank Reactor. The pH was controlled at 3 and the pS at 25 (pS=-log(S(2-))) by means of an Ag(2)S sulfide selective electrode. Copper's recovery and purity were about 100%, whereas the total soluble sulfide concentration was below 0.02 ppm. X-ray diffraction (XRD) analysis showed that copper precipitated as hexagonal CuS (covellite). The mode of the particle size distribution (PSD) of the CuS precipitates was around 36 microm. The PSD increased by high pS values and by the presence of Zn. Depending on the turbulence, the CuS precipitates can grow up to 200 microm or fragment in particles smaller than 3 microm in a few seconds. Zn precipitation with Na(2)S at pH 3 and 4, in batch, always lead to Zn concentrations above 1 ppm. Zn precipitated as cubic ZnS (spharelite).
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bruna E, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Sánchez MCDLB, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Clarke RF, Codrington MJM, Corliss R, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, Silva LCD, Dedovich TG, DePhillips M, Derevschikov AA, de Souza RD, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Mazumdar MRD, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kopytine M, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kuhn C, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li N, Li C, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, de Toledo AS, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, Molen AMV, Vanfossen JA, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Walker M, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu Y, Xu Z, Yang Y, Yepes P, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Measurement ofD*mesons in jets fromp+pcollisions ats=200 GeV. Int J Clin Exp Med 2009. [DOI: 10.1103/physrevd.79.112006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Xu Y, Watchman C, Krafft S, Jang S, Haddad K, Ganapol B, Hamilton R. SU-FF-T-14: Skin Dose Evaluation for HDR Accelerated Partial Breast Irradiation. Med Phys 2009. [DOI: 10.1118/1.3181485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kawi J, Xu Y. Facilitators and barriers to adjustment of international nurses: an integrative review. Int Nurs Rev 2009; 56:174-83. [DOI: 10.1111/j.1466-7657.2008.00705.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Deng YQ, Tao ZZ, Kong YG, Xiao BK, Chen SM, Xu Y, Wang Y, He Q. Association between single nucleotide polymorphisms of surfactant protein D and allergic rhinitis in Chinese patients. ACTA ACUST UNITED AC 2009; 73:546-52. [DOI: 10.1111/j.1399-0039.2009.01232.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Zhang Z, Liu J, Xu Y, Jiang W, Hong B, Xie Z, Si S. Abstract: P438 IMB6791 STIMULATES CHOLESTEROL EFFLUX BY INCREASING THE BINDING OF APOLIPOPROTEIN A-I TO ATP-BINDING CASSETTE TRANSPORTER A1. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70733-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lu S, Yang H, Ye X, Xu X, Li Z, Ren L, Xu Y, Xu J. A novel mutant-enriched liquidchip for detection of circulating EGFR mutations in advanced non-small cell lung cancer patients. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e14526] [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
e14526 Background: We developed a novel technology, Mutant-enriched liquidchip (MEL), which integrates the sensitive mutant enriched PCR and quantitative high throughput liquidchip (suspension array), to detect circulating EGFR mutations (Exon 19 deletion and exon 21 L858R mutation) in patients with advanced non-small cell lung cancer (NSCLC). Methods: To enrich mutant EGFR, a unique restriction site is introduced into the mutation alleles so that the wild type sequence can be selectively removed by restriction digestion, and the undigested mutated DNA is amplified by PCR. The product is then hybridized to complementary probes (including 15 types of exon 19 deletion and exon 21 L858R mutation) which had been conjugated to beads coding with different fluorescent dye, followed by measuring through Luminex 200 system. Plasmid DNA mixture with different EGFR genotypes was applied to determine the sensitivity and accuracy of MEL. Afterwards, the MEL was validated in 49 patients whose EGFR genotypes of tissue specimen had been tested with direct sequencing The circulating genomic DNA was obtained from serum sample of other 201 Chinese stage IIIB or IV NSCLC patients without EGFR-TKI administration, and the EGFR mutation status was analyzed by using of MEL. Results: The results shows that MEL is capable of detecting as few as 20 copies of mutant EGFR alleles with a sensitivity limit of at least mutant/wild-type ratio of 0.1%. It also shows that MEL can not only confirm EGFR mutations status in tissue specimens already known by direct sequencing (13/49), but also detect mutations in some of those showing wild type by sequencing (16/49). Overall, 54% of patients had circulating EGFR mutation. 34% of patients had an exon 19 deletion and 29.6% had L858R. 63.1% of mutations were found in females and 67.6% in never-smokers. Conclusions: This novel MEL method allows for highly sensitive and reproducible detection of human somatic mutations in heterogeneous specimens, and could be applicable to test EGFR mutations non-invasively in advanced NSCLC patients for predicting response to targeted therapy. No significant financial relationships to disclose.
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Zhang F, Xu Y, Song C, Ma Y, Nan F, Wang H, Lin S, Huang M, Zhang Y. Regulational effects of breast cancer stromal cells and normal breast stromal cells on MCF-7 mammosphere formation. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.1056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1056 Background: It is well known that microenvironment plays an important role in tumor progression so we investigated the regulatory effects of breast cancer stromal cells (BCSCs) and normal breast stromal cells (NBSCs) as microenvironment on MCF-7 mammosphere formation. Methods: MCF-7 cells were cultured in suspension to generate mammospheres. The proportion of CD44+CD24- cells was assessed by flow cytometry and the expression of Wint1, notch1, β-catenin, CXCR4, SOX2, and ALDH3A1 was detected by real-time PCR. The stromal cells were purified and identified by immumohistochemistry. BCSCs or NBSCs and MCF-7 cells were co-cultured via Transwell system, the volumes and numbers of mammospheres and the mammosphere-forming efficiency (MFE) were calculated and the expression of Wnt1, β-catenin, Notch1 were detected. Results: The proportion of CD44+CD24- cells in mammospheres and MCF-7 cells was 10.4% and 2.1% (p < 0.05), respectively. Real-time PCR analysis suggested that Wint1, notch1, β-catenin, CXCR4, SOX2, and ALDH3A1 genes in the mammosphere cells were with higher levels than MCF-7 cells by about 2.25, 2.45, 1.72, 4.68, 4.25, 5.38 fold, respectively (p < 0.01). The stromal cells purified were identified as fibroblasts by α-SMA,Vimentin and fibroblast special protein antibody via immumohistochemistry. The time of mammosphere's formation was earlier, the volumes of mammospheres were bigger, and the MFE was higher than control group. The expressions of Wnt1 in co-culture group were significantly upregulated 1.27, 3.18 folds than control group, respectively, while the β-catenin was 1.22, 1.75 folds; Notch1 was 1.31, 2.09 folds; and CXCR4 was 1.73, 2.77 folds, respectively. Conclusions: Mammosphere cells contained higher propotion of breast cancer stem cells and expressed higher levels of cancer stem cell related genes. BCSCs can promote the mammosphere-forming efficiency and upregulate the expression of cancer stem cell related genes. No significant financial relationships to disclose.
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