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Posik M, Flay D, Parno DS, Allada K, Armstrong W, Averett T, Benmokhtar F, Bertozzi W, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Choi S, Chudakov E, Cusanno F, Dalton MM, Deconinck W, de Jager CW, Deng X, Deur A, Dutta C, El Fassi L, Franklin GB, Friend M, Gao H, Garibaldi F, Gilad S, Gilman R, Glamazdin O, Golge S, Gomez J, Guo L, Hansen O, Higinbotham DW, Holmstrom T, Huang J, Hyde C, Ibrahim HF, Jiang X, Jin G, Katich J, Kelleher A, Kolarkar A, Korsch W, Kumbartzki G, LeRose JJ, Lindgren R, Liyanage N, Long E, Lukhanin A, Mamyan V, McNulty D, Meziani ZE, Michaels R, Mihovilovič M, Moffit B, Muangma N, Nanda S, Narayan A, Nelyubin V, Norum B, Oh Y, Peng JC, Qian X, Qiang Y, Rakhman A, Riordan S, Saha A, Sawatzky B, Shabestari MH, Shahinyan A, Širca S, Solvignon P, Subedi R, Sulkosky V, Tobias WA, Troth W, Wang D, Wang Y, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yuan L, Zhan X, Zhang Y, Zhang YW, Zhao B, Zheng X. Precision measurement of the neutron twist-3 matrix element d(2)(n): probing color forces. Phys Rev Lett 2014; 113:022002. [PMID: 25062166 DOI: 10.1103/physrevlett.113.022002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Indexed: 06/03/2023]
Abstract
Double-spin asymmetries and absolute cross sections were measured at large Bjorken x (0.25≤x≤0.90), in both the deep-inelastic and resonance regions, by scattering longitudinally polarized electrons at beam energies of 4.7 and 5.9 GeV from a transversely and longitudinally polarized (3)He target. In this dedicated experiment, the spin structure function g(2)((3)He) was determined with precision at large x, and the neutron twist-3 matrix element d(2)(n) was measured at ⟨Q(2)⟩ of 3.21 and 4.32 GeV(2)/c(2), with an absolute precision of about 10(-5). Our results are found to be in agreement with lattice QCD calculations and resolve the disagreement found with previous data at ⟨Q(2)⟩=5 GeV(2)/c(2). Combining d(2)(n) and a newly extracted twist-4 matrix element f(2)(n), the average neutron color electric and magnetic forces were extracted and found to be of opposite sign and about 30 MeV/fm in magnitude.
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Affiliation(s)
- M Posik
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Flay
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D S Parno
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA and Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - W Armstrong
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - F Benmokhtar
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA and Duquesne University, Pittsburgh, Pennsylvania 15282, USA
| | - W Bertozzi
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23187, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Choi
- Seoul National University, Seoul 151-742, South Korea
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Cusanno
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - M M Dalton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Deconinck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Deng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - L El Fassi
- Old Dominion University, Norfolk, Virginia 23529, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - G B Franklin
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - M Friend
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - H Gao
- Duke University, Durham, North Carolina 27708, USA
| | | | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Gilman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Golge
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Guo
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA and Université Blaise Pascal/IN2P3, F-63177 Aubière, France
| | | | - X Jiang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - G Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Katich
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Kelleher
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Kolarkar
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - W Korsch
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - G Kumbartzki
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Long
- Kent State University, Kent, Ohio 44242, USA
| | - A Lukhanin
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V Mamyan
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - D McNulty
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Z-E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - B Moffit
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Muangma
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Nanda
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Narayan
- Mississippi State University, Mississippi 39762, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Norum
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Oh
- Seoul National University, Seoul 151-742, South Korea
| | - J C Peng
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA and Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA
| | - Y Qiang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Duke University, Durham, North Carolina 27708, USA
| | - A Rakhman
- Syracuse University, Syracuse, New York 13244, USA
| | - S Riordan
- University of Virginia, Charlottesville, Virginia 22904, USA and University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Temple University, Philadelphia, Pennsylvania 19122, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M H Shabestari
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - S Širca
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia and University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - P Solvignon
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Argonne National Lab, Argonne, Illinois 60439, USA
| | - R Subedi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W A Tobias
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Troth
- Longwood University, Farmville, Virginia 23909, USA
| | - D Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Wang
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA and College of William and Mary, Williamsburg, Virginia 23187, USA
| | - Y Ye
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Z Ye
- Hampton University, Hampton, Virginia 23187, USA
| | - L Yuan
- Hampton University, Hampton, Virginia 23187, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Zhang
- Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - Y-W Zhang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - B Zhao
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
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52
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Katich J, Qian X, Zhao YX, Allada K, Aniol K, Annand JRM, Averett T, Benmokhtar F, Bertozzi W, Bradshaw PC, Bosted P, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Chen W, Chirapatpimol K, Chudakov E, Cisbani E, Cornejo JC, Cusanno F, Dalton MM, Deconinck W, de Jager CW, De Leo R, Deng X, Deur A, Ding H, Dolph PAM, Dutta C, Dutta D, El Fassi L, Frullani S, Gao H, Garibaldi F, Gaskell D, Gilad S, Gilman R, Glamazdin O, Golge S, Guo L, Hamilton D, Hansen O, Higinbotham DW, Holmstrom T, Huang J, Huang M, Ibrahim HF, Iodice M, Jiang X, Jin G, Jones MK, Kelleher A, Kim W, Kolarkar A, Korsch W, LeRose JJ, Li X, Li Y, Lindgren R, Liyanage N, Long E, Lu HJ, Margaziotis DJ, Markowitz P, Marrone S, McNulty D, Meziani ZE, Michaels R, Moffit B, Muñoz Camacho C, Nanda S, Narayan A, Nelyubin V, Norum B, Oh Y, Osipenko M, Parno D, Peng JC, Phillips SK, Posik M, Puckett AJR, Qiang Y, Rakhman A, Ransome RD, Riordan S, Saha A, Sawatzky B, Schulte E, Shahinyan A, Shabestari MH, Širca S, Stepanyan S, Subedi R, Sulkosky V, Tang LG, Tobias A, Urciuoli GM, Vilardi I, Wang K, Wang Y, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yuan L, Zhan X, Zhang Y, Zhang YW, Zhao B, Zheng X, Zhu L, Zhu X, Zong X. Measurement of the target-normal single-spin asymmetry in deep-inelastic scattering from the reaction (3)He(↑)(e,e')X. Phys Rev Lett 2014; 113:022502. [PMID: 25062169 DOI: 10.1103/physrevlett.113.022502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Indexed: 06/03/2023]
Abstract
We report the first measurement of the target-normal single-spin asymmetry in deep-inelastic scattering from the inclusive reaction 3)He(↑)(e,e')X on a polarized (3)He gas target. Assuming time-reversal invariance, this asymmetry is strictly zero in the Born approximation but can be nonzero if two-photon-exchange contributions are included. The experiment, conducted at Jefferson Lab using a 5.89 GeV electron beam, covers a range of 1.7<W<2.9 GeV, 1.0<Q(2)<4.0 GeV(2) and 0.16<x<0.65. Neutron asymmetries were extracted using the effective nucleon polarization and measured proton-to-(3)He cross-section ratios. The measured neutron asymmetries are negative with an average value of (-1.09±0.38)×10(-2) for invariant mass W>2 GeV, which is nonzero at the 2.89σ level. Our measured asymmetry agrees both in sign and magnitude with a two-photon-exchange model prediction that uses input from the Sivers transverse momentum distribution obtained from semi-inclusive deep-inelastic scattering.
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Affiliation(s)
- J Katich
- College of William and Mary, Williamsburg, Virginia 23187, USA and University of Colorado, Boulder, Colorado 80309, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA and Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA and Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y X Zhao
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J R M Annand
- University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
| | - T Averett
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - F Benmokhtar
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - W Bertozzi
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P C Bradshaw
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - P Bosted
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23187, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Chen
- Duke University, Durham, North Carolina 27708, USA
| | - K Chirapatpimol
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Cisbani
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - J C Cornejo
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - F Cusanno
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - M M Dalton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Deconinck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and University of Virginia, Charlottesville, Virginia 22904, USA
| | - R De Leo
- INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
| | - X Deng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Ding
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P A M Dolph
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Minnesota 39762, USA
| | - L El Fassi
- Old Dominion University, Norfolk, Virginia 23529, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - S Frullani
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - H Gao
- Duke University, Durham, North Carolina 27708, USA
| | - F Garibaldi
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Gilman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Golge
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Guo
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Hamilton
- University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Huang
- Duke University, Durham, North Carolina 27708, USA
| | | | - M Iodice
- INFN, Sezione di Roma3, I-00146 Rome, Italy
| | - X Jiang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - G Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Kelleher
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - W Kim
- Kyungpook National University, Taegu 702-701, Republic of Korea
| | - A Kolarkar
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - W Korsch
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Li
- China Institute of Atomic Energy, Beijing, People's Republic of China
| | - Y Li
- China Institute of Atomic Energy, Beijing, People's Republic of China
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Long
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - H-J Lu
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - D J Margaziotis
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - S Marrone
- INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
| | - D McNulty
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Z-E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Moffit
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - S Nanda
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Narayan
- Mississippi State University, Mississippi State, Minnesota 39762, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Norum
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Oh
- Seoul National University, Seoul, 151-747, Republic of Korea
| | - M Osipenko
- INFN, Sezione di Genova, I-16146 Genova, Italy
| | - D Parno
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - J C Peng
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - S K Phillips
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - M Posik
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A J R Puckett
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Y Qiang
- Duke University, Durham, North Carolina 27708, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Rakhman
- Syracuse University, Syracuse, New York 13244, USA
| | - R D Ransome
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - S Riordan
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Temple University, Philadelphia, Pennsylvania 19122, USA
| | - E Schulte
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - M H Shabestari
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Širca
- University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - S Stepanyan
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - R Subedi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L-G Tang
- Hampton University, Hampton, Virginia 23187, USA
| | - A Tobias
- University of Virginia, Charlottesville, Virginia 22904, USA
| | | | - I Vilardi
- INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
| | - K Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Wang
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Y Ye
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Z Ye
- Hampton University, Hampton, Virginia 23187, USA
| | - L Yuan
- Hampton University, Hampton, Virginia 23187, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Zhang
- Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - Y-W Zhang
- Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - B Zhao
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - L Zhu
- Hampton University, Hampton, Virginia 23187, USA and University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - X Zhu
- Duke University, Durham, North Carolina 27708, USA
| | - X Zong
- Duke University, Durham, North Carolina 27708, USA
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53
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Korover I, Muangma N, Hen O, Shneor R, Sulkosky V, Kelleher A, Gilad S, Higinbotham DW, Piasetzky E, Watson JW, Wood SA, Aguilera P, Ahmed Z, Albataineh H, Allada K, Anderson B, Anez D, Aniol K, Annand J, Armstrong W, Arrington J, Averett T, Badman T, Baghdasaryan H, Bai X, Beck A, Beck S, Bellini V, Benmokhtar F, Bertozzi W, Bittner J, Boeglin W, Camsonne A, Chen C, Chen JP, Chirapatpimol K, Cisbani E, Dalton MM, Daniel A, Day D, de Jager CW, De Leo R, Deconinck W, Defurne M, Flay D, Fomin N, Friend M, Frullani S, Fuchey E, Garibaldi F, Gaskell D, Gilman R, Glamazdin O, Gu C, Gueye P, Hamilton D, Hanretty C, Hansen JO, Hashemi Shabestari M, Holmstrom T, Huang M, Iqbal S, Jin G, Kalantarians N, Kang H, Khandaker M, LeRose J, Leckey J, Lindgren R, Long E, Mammei J, Margaziotis DJ, Markowitz P, Marti Jimenez-Arguello A, Meekins D, Meziani Z, Michaels R, Mihovilovic M, Monaghan P, Munoz Camacho C, Norum B, Pan K, Phillips S, Pomerantz I, Posik M, Punjabi V, Qian X, Qiang Y, Qiu X, Rakhman A, Reimer PE, Riordan S, Ron G, Rondon-Aramayo O, Saha A, Schulte E, Selvy L, Shahinyan A, Sirca S, Sjoegren J, Slifer K, Solvignon P, Sparveris N, Subedi R, Tireman W, Wang D, Weinstein LB, Wojtsekhowski B, Yan W, Yaron I, Ye Z, Zhan X, Zhang J, Zhang Y, Zhao B, Zhao Z, Zheng X, Zhu P, Zielinski R. Probing the repulsive core of the nucleon-nucleon interaction via the (4)He(e,e'pN) triple-coincidence reaction. Phys Rev Lett 2014; 113:022501. [PMID: 25062168 DOI: 10.1103/physrevlett.113.022501] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Indexed: 06/03/2023]
Abstract
We studied simultaneously the (4)He(e,e'p), (4)He(e,e'pp), and (4)He(e,e'pn) reactions at Q(2)=2(GeV/c)(2) and x(B)>1, for an (e,e'p) missing-momentum range of 400 to 830 MeV/c. The knocked-out proton was detected in coincidence with a proton or neutron recoiling almost back to back to the missing momentum, leaving the residual A=2 system at low excitation energy. These data were used to identify two-nucleon short-range correlated pairs and to deduce their isospin structure as a function of missing momentum, in a region where the nucleon-nucleon (NN) force is expected to change from predominantly tensor to repulsive. The abundance of neutron-proton pairs is reduced as the nucleon momentum increases beyond ∼500 MeV/c. The extracted fraction of proton-proton pairs is small and almost independent of the missing momentum. Our data are compared with calculations of two-nucleon momentum distributions in (4)He and discussed in the context of probing the elusive repulsive component of the NN force.
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Affiliation(s)
- I Korover
- Tel Aviv University, Tel Aviv 69978, Israel
| | - N Muangma
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - O Hen
- Tel Aviv University, Tel Aviv 69978, Israel
| | - R Shneor
- Tel Aviv University, Tel Aviv 69978, Israel
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Longwood University, Farmville, Virginia 23909, USA
| | - A Kelleher
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - J W Watson
- Kent State University, Kent, Ohio 44242, USA
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Aguilera
- Institut de Physique Nucléaire (UMR 8608), CNRS/IN2P3-Université Paris-Sud, F-91406 Orsay Cedex, France
| | - Z Ahmed
- Syracuse University, Syracuse, New York 13244, USA
| | - H Albataineh
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - B Anderson
- Kent State University, Kent, Ohio 44242, USA
| | - D Anez
- Saint Mary's University, Halifax, Nova Scotia, Canada
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J Annand
- University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
| | - W Armstrong
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J Arrington
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - T Averett
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - T Badman
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - H Baghdasaryan
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - X Bai
- China Institute of Atomic Energy, Beijing, China
| | - A Beck
- Nuclear Research Center Negev, Beer-Sheva, Israel
| | - S Beck
- Nuclear Research Center Negev, Beer-Sheva, Israel
| | - V Bellini
- Universita di Catania, Catania, Italy
| | - F Benmokhtar
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - W Bertozzi
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Bittner
- Longwood University, Farmville, Virginia 23909, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23668, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Chirapatpimol
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Cisbani
- INFN, Sezione Sanità and Istituto Superiore di Sanità, 00161 Rome, Italy
| | - M M Dalton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Daniel
- Ohio University, Athens, Ohio 45701, USA
| | - D Day
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and University of Virginia, Charlottesville, Virginia 22904, USA
| | - R De Leo
- INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
| | - W Deconinck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Defurne
- CEA Saclay, F-91191 Gif-sur-Yvette, France
| | - D Flay
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - N Fomin
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - M Friend
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Frullani
- INFN, Sezione Sanità and Istituto Superiore di Sanità, 00161 Rome, Italy
| | - E Fuchey
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - F Garibaldi
- INFN, Sezione Sanità and Istituto Superiore di Sanità, 00161 Rome, Italy
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Gilman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - C Gu
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - P Gueye
- Hampton University, Hampton, Virginia 23668, USA
| | - D Hamilton
- University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
| | - C Hanretty
- Florida State University, Tallahassee, Florida 32306, USA
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - M Huang
- Duke University, Durham, North Carolina 27708, USA
| | - S Iqbal
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - G Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | | | - H Kang
- Seoul National University, Seoul, Korea
| | - M Khandaker
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Leckey
- Indiana University, Bloomington, Indiana 47405, USA
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Long
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - J Mammei
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - D J Margaziotis
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | | | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - P Monaghan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Hampton University, Hampton, Virginia 23668, USA
| | | | - B Norum
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - K Pan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Phillips
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - I Pomerantz
- Tel Aviv University, Tel Aviv 69978, Israel and The University of Texas at Austin, Austin, Texas 78712, USA
| | - M Posik
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA
| | - Y Qiang
- Duke University, Durham, North Carolina 27708, USA
| | - X Qiu
- Lanzhou University, Lanzhou, China
| | - A Rakhman
- Syracuse University, Syracuse, New York 13244, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Riordan
- University of Virginia, Charlottesville, Virginia 22904, USA and University of Massachusetts, Amherst, Massachusetts 01006, USA
| | - G Ron
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem, Israel
| | - O Rondon-Aramayo
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Schulte
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - L Selvy
- Kent State University, Kent, Ohio 44242, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - S Sirca
- University of Ljubljana, Ljubljana, Slovenia
| | - J Sjoegren
- University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
| | - K Slifer
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - P Solvignon
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Subedi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Tireman
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - D Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - L B Weinstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Yan
- University of Science and Technology, Hefei, China
| | - I Yaron
- Tel Aviv University, Tel Aviv 69978, Israel
| | - Z Ye
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Zhang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Zhang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - B Zhao
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - Z Zhao
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P Zhu
- University of Science and Technology, Hefei, China
| | - R Zielinski
- University of New Hampshire, Durham, New Hampshire 03824, USA
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Zhao YQ, Liu QJ, Guo RB, Chen FQ, Qu JP, Jin G. Morphology, Mechanical and Thermal Properties of Recycled PC/ABS Blends Processed via Vane Extruder. INT POLYM PROC 2014. [DOI: 10.3139/217.2830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The melt blends of recycled polycarbonate and recycled poly(acrylonitrile-butadiene-styrene) were performed by using a novel vane extruder. The morphology, mechanical, and thermal properties of the RPC/RABS blends in the whole composition range were investigated. When the concentration of RABS was 20 wt%, the blend presented the best comprehensive mechanical properties, especially for the impact strength which was significantly improved compared with RPC and RABS individuals. The blend with 90 wt% RABS also presents better mechanical properties compared with the adjacent blending ratio. With the increase of RABS concentration in blends, Tg of the RABS phase decreases slightly, but Tg of the RPC phase increases. The DSC and SEM results indicate that RPC are partial miscible with RABS.
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Affiliation(s)
- Y. Q. Zhao
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou, Guangdong , PRC
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou, Guangdong , PRC
| | - Q. J. Liu
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou, Guangdong , PRC
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou, Guangdong , PRC
| | - R. B. Guo
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou, Guangdong , PRC
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou, Guangdong , PRC
| | - F. Q. Chen
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou, Guangdong , PRC
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou, Guangdong , PRC
| | - J. P. Qu
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou, Guangdong , PRC
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou, Guangdong , PRC
| | - G. Jin
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou, Guangdong , PRC
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou, Guangdong , PRC
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Zhu C, Ren C, Han J, Ding Y, Du J, Dai N, Dai J, Ma H, Hu Z, Shen H, Xu Y, Jin G. A five-microRNA panel in plasma was identified as potential biomarker for early detection of gastric cancer. Br J Cancer 2014; 110:2291-9. [PMID: 24595006 PMCID: PMC4007222 DOI: 10.1038/bjc.2014.119] [Citation(s) in RCA: 177] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 01/22/2014] [Accepted: 02/10/2014] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Circulating microRNAs (miRNAs) have been implicated as novel biomarkers for gastric cancer (GC) diagnosis. However, the mixture of GC subtypes may have led to the inconsistent circulating miRNA profiles, and the clinical performance of circulating miRNAs has not yet been evaluated independently on early detection of GC. METHODS A four-phase study was designed with a total of 160 cancer-free controls, 124 patients with gastric non-cardia adenocarcinoma (GNCA) and 36 patients diagnosed gastric cardia adenocarcinoma (GCA). In the discovery phase, we screened the miRNA expression profile in plasma of 40 GNCA patients (stage I) and 40 matched controls by TaqMan low density array (TLDA) chips with pooled samples. Differentially expressed miRNAs were further validated in individual sample using quantitative reverse-transcriptase PCR (qRT-PCR) in the training phase. Subsequently, in an independent validation phase, the identified miRNAs were evaluated in 48 GNCA patients (stage I) and 102 matched controls. Finally, the identified miRNAs were further assessed in an external validation phase including advanced GNCA and GCA patients. Additionally, the expression levels of identified miRNAs were measured in the media of BGC823 and MGC803 cell lines. RESULTS Five miRNAs (miR-16, miR-25, miR-92a, miR-451 and miR-486-5p) showed consistently elevated levels in plasma of the GC patients as compared with controls, and were identified to be potential markers for GNCA with area under the receiver operating characteristic (ROC) curves (AUCs) ranging from 0.850 to 0.925 and 0.694 to 0.790 in the training and validation phases, respectively. The five-miRNA panel presented a high diagnostic accuracy for the early-stage GNCA (AUCs=0.989 and 0.812 for the training and validation phases, respectively). Three miRNAs (miR-16, miR-25 and miR-92a) were excreted into the culture media of GC cell lines. CONCLUSIONS The five-miRNA panel in plasma may serve as a potential non-invasive biomarker in detecting the early-stage GC.
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Affiliation(s)
- C Zhu
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Section of Clinical Epidemiology, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China
| | - C Ren
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Department of Clinical Laboratory, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - J Han
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Section of Clinical Epidemiology, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China
| | - Y Ding
- Department of Gastroenterology, Yangzhou First People's Hospital, Yangzhou 225001, China
| | - J Du
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - N Dai
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - J Dai
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - H Ma
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Z Hu
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Section of Clinical Epidemiology, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China
| | - H Shen
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Section of Clinical Epidemiology, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China
| | - Y Xu
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- E-mail:
| | - G Jin
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Section of Clinical Epidemiology, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China
- E-mail:
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Jin G, Liu B, You Z, Dekker S, Bambakidis T, Maxwell J, Halaweish I, Linzel D, Alam H. Development of a Novel Neuroprotective Strategy: Synergistic Treatment With Hypothermia and Valproic Acid Improves Survival in Hypoxic Hippocampal Cells. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dekker S, Sillesen M, Bambakidis T, Boer C, Johansson P, Jin G, Halaweish I, Alam H. Treatment With a Histone Deacetylase Inhibitor, Valproic acid, is Associated With Increased Platelet Activation in a Large Animal Model of Traumatic Brain Injury and Hemorrhagic Shock. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.1069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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58
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Sun J, Jin G, Qin MX, Wan ZB, Wang JB, Wang C, Guo WY, Xu L, Ning X, Xu J, Pu XJ, Chen MS, Zhao HM. Detection of acute cerebral hemorrhage in rabbits by magnetic induction. Braz J Med Biol Res 2014; 47:144-50. [PMID: 24519130 PMCID: PMC4051184 DOI: 10.1590/1414-431x20132978] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 10/10/2013] [Indexed: 11/22/2022] Open
Abstract
Acute cerebral hemorrhage (ACH) is an important clinical problem that is often
monitored and studied with expensive devices such as computed tomography,
magnetic resonance imaging, and positron emission tomography. These devices are
not readily available in economically underdeveloped regions of the world,
emergency departments, and emergency zones. We have developed a less expensive
tool for non-contact monitoring of ACH. The system measures the magnetic
induction phase shift (MIPS) between the electromagnetic signals on two coils.
ACH was induced in 6 experimental rabbits and edema was induced in 4 control
rabbits by stereotactic methods, and their intracranial pressure and heart rate
were monitored for 1 h. Signals were continuously monitored for up to 1 h at an
exciting frequency of 10.7 MHz. Autologous blood was administered to the
experimental group, and saline to the control group (1 to 3 mL) by injection of
1-mL every 5 min. The results showed a significant increase in MIPS as a
function of the injection volume, but the heart rate was stable. In the
experimental (ACH) group, there was a statistically significant positive
correlation of the intracranial pressure and MIPS. The change of MIPS was
greater in the ACH group than in the control group. This high-sensitivity system
could detect a 1-mL change in blood volume. The MIPS was significantly related
to the intracranial pressure. This observation suggests that the method could be
valuable for detecting early warning signs in emergency medicine and critical
care units.
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Affiliation(s)
- J Sun
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - G Jin
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - M X Qin
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - Z B Wan
- Experimental Animal Center, Third Military Medical University, Chongqing, China, Experimental Animal Center, Third Military Medical University, Chongqing, China
| | - J B Wang
- College of Electronic Engineering, Xidian University, Xi'an, China, College of Electronic Engineering, Xidian University, Xi'an, China
| | - C Wang
- College of Electronic Engineering, Xidian University, Xi'an, China, College of Electronic Engineering, Xidian University, Xi'an, China
| | - W Y Guo
- College of Electronic Engineering, Xidian University, Xi'an, China, College of Electronic Engineering, Xidian University, Xi'an, China
| | - L Xu
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - X Ning
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - J Xu
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - X J Pu
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - M S Chen
- College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China, College of Biomedical Engineering and Medical Imaging, Third Military Medical University, Chongqing, China
| | - H M Zhao
- Experimental Animal Center, Third Military Medical University, Chongqing, China, Experimental Animal Center, Third Military Medical University, Chongqing, China
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Yi X, Jin G, Zhang X, Mao W, Li H, Qin J, Shi J. Cortical endogenic neural regeneration of adult rat after traumatic brain injury. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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60
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Imam A, Jin G, Duggan M, DeMoya M, Sillesen M, Deperalta D, Hwabejire J, Jepsen C, Liu B, Lu J, Li Y, Socrate S, Alam H. Synergistic Effects of Fresh Frozen Plasma and Valproic Acid Treatment in a Combined Model of Traumatic Brain Injury and Hemorrhagic Shock. J Surg Res 2013. [DOI: 10.1016/j.jss.2012.10.651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Qi C, Chen YY, Wang ZH, Jin G. Investigation of interactions between two monoclonal antibodies and SARS virus with a Label-free Protein Array. Conf Proc IEEE Eng Med Biol Soc 2012; 2005:1305-8. [PMID: 17282435 DOI: 10.1109/iembs.2005.1616666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The investigation of interactions between two kinds of monoclonal antibodies and SARS virus with a label-free protein array technique were presented in this paper. The performance consists of three parts: a surface modification for ligand immobilization/surface, a protein array fabrication with an integrated microfluidic system for patterning, packaging and liquid handling, and a protein array reader of imaging ellipsometer. This revealed the technique could be used as an immunoassay for qualitative and quantitative detection as well as kinetic analysis of biomolecule interaction.
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Affiliation(s)
- C Qi
- Institute of Mechanics, Chinese Academy of Sciences, #15, Bei-si-huan West Rd., Beijing 100080, P.R.China; Graduate School of Chinese Academy of Sciences, #19, Yu-quan Rd, Shi-jing-shan District, Beijing 100039, P.R.China
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62
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Jin G, Yoo IH, Pack SP, Yang JW, Ha UH, Paek SH, Seo S. Lens-free shadow image based high-throughput continuous cell monitoring technique. Biosens Bioelectron 2012; 38:126-31. [DOI: 10.1016/j.bios.2012.05.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 03/29/2012] [Accepted: 05/09/2012] [Indexed: 01/01/2023]
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63
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Li Y, Jin G, Zhong Z. Thermodynamic Analysis-Based Improvement for the Boil-off Gas Reliquefaction Process of Liquefied Ethylene Vessels. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Guan W, Hong J, Dai J, Jin G, Huang Z, Zhang L, Dang JZ, Zhang Y. Tachyplesin I Induce Drug Resistance in Bacteria in vitro. ACTA ACUST UNITED AC 2012. [DOI: 10.3923/javaa.2012.939.945] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abrahamyan S, Ahmed Z, Albataineh H, Aniol K, Armstrong DS, Armstrong W, Averett T, Babineau B, Barbieri A, Bellini V, Beminiwattha R, Benesch J, Benmokhtar F, Bielarski T, Boeglin W, Camsonne A, Canan M, Carter P, Cates GD, Chen C, Chen JP, Hen O, Cusanno F, Dalton MM, De Leo R, de Jager K, Deconinck W, Decowski P, Deng X, Deur A, Dutta D, Etile A, Flay D, Franklin GB, Friend M, Frullani S, Fuchey E, Garibaldi F, Gasser E, Gilman R, Giusa A, Glamazdin A, Gomez J, Grames J, Gu C, Hansen O, Hansknecht J, Higinbotham DW, Holmes RS, Holmstrom T, Horowitz CJ, Hoskins J, Huang J, Hyde CE, Itard F, Jen CM, Jensen E, Jin G, Johnston S, Kelleher A, Kliakhandler K, King PM, Kowalski S, Kumar KS, Leacock J, Leckey J, Lee JH, LeRose JJ, Lindgren R, Liyanage N, Lubinsky N, Mammei J, Mammoliti F, Margaziotis DJ, Markowitz P, McCreary A, McNulty D, Mercado L, Meziani ZE, Michaels RW, Mihovilovic M, Muangma N, Muñoz-Camacho C, Nanda S, Nelyubin V, Nuruzzaman N, Oh Y, Palmer A, Parno D, Paschke KD, Phillips SK, Poelker B, Pomatsalyuk R, Posik M, Puckett AJR, Quinn B, Rakhman A, Reimer PE, Riordan S, Rogan P, Ron G, Russo G, Saenboonruang K, Saha A, Sawatzky B, Shahinyan A, Silwal R, Sirca S, Slifer K, Solvignon P, Souder PA, Sperduto ML, Subedi R, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Troth W, Urciuoli GM, Waidyawansa B, Wang D, Wexler J, Wilson R, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yim V, Zana L, Zhan X, Zhang J, Zhang Y, Zheng X, Zhu P. Measurement of the neutron radius of 208Pb through parity violation in electron scattering. Phys Rev Lett 2012; 108:112502. [PMID: 22540469 DOI: 10.1103/physrevlett.108.112502] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 05/31/2023]
Abstract
We report the first measurement of the parity-violating asymmetry A(PV) in the elastic scattering of polarized electrons from 208Pb. A(PV) is sensitive to the radius of the neutron distribution (R(n)). The result A(PV)=0.656±0.060(stat)±0.014(syst) ppm corresponds to a difference between the radii of the neutron and proton distributions R(n)-R(p)=0.33(-0.18)(+0.16) fm and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.
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66
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Ahmed Z, Allada K, Aniol KA, Armstrong DS, Arrington J, Baturin P, Bellini V, Benesch J, Beminiwattha R, Benmokhtar F, Canan M, Camsonne A, Cates GD, Chen JP, Chudakov E, Cisbani E, Dalton MM, de Jager CW, De Leo R, Deconinck W, Decowski P, Deng X, Deur A, Dutta C, Franklin GB, Friend M, Frullani S, Garibaldi F, Giusa A, Glamazdin A, Golge S, Grimm K, Hansen O, Higinbotham DW, Holmes R, Holmstrom T, Huang J, Huang M, Hyde CE, Jen CM, Jin G, Jones D, Kang H, King P, Kowalski S, Kumar KS, Lee JH, LeRose JJ, Liyanage N, Long E, McNulty D, Margaziotis D, Meddi F, Meekins DG, Mercado L, Meziani ZE, Michaels R, Muñoz-Camacho C, Mihovilovic M, Muangma N, Myers KE, Nanda S, Narayan A, Nelyubin V, Oh Y, Pan K, Parno D, Paschke KD, Phillips SK, Qian X, Qiang Y, Quinn B, Rakhman A, Reimer PE, Rider K, Riordan S, Roche J, Rubin J, Russo G, Saenboonruang K, Saha A, Sawatzky B, Silwal R, Sirca S, Souder PA, Sperduto M, Subedi R, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Urciuoli GM, Waidyawansa B, Wang D, Wexler J, Wilson R, Wojtsekhowski B, Zhan X, Yan X, Yao H, Ye L, Zhao B, Zheng X. New precision limit on the strange vector form factors of the proton. Phys Rev Lett 2012; 108:102001. [PMID: 22468841 DOI: 10.1103/physrevlett.108.102001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Indexed: 05/31/2023]
Abstract
The parity-violating cross-section asymmetry in the elastic scattering of polarized electrons from unpolarized protons has been measured at a four-momentum transfer squared Q2 = 0.624 GeV2 and beam energy E(b) = 3.48 GeV to be A(PV) = -23.80 ± 0.78(stat) ± 0.36(syst) parts per million. This result is consistent with zero contribution of strange quarks to the combination of electric and magnetic form factors G(E)(s) + 0.517G(M)(s) = 0.003 ± 0.010(stat) ± 0.004(syst) ± 0.009(ff), where the third error is due to the limits of precision on the electromagnetic form factors and radiative corrections. With this measurement, the world data on strange contributions to nucleon form factors are seen to be consistent with zero and not more than a few percent of the proton form factors.
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Affiliation(s)
- Z Ahmed
- Syracuse University, Syracuse, New York 13244, USA
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Huang J, Allada K, Dutta C, Katich J, Qian X, Wang Y, Zhang Y, Aniol K, Annand JRM, Averett T, Benmokhtar F, Bertozzi W, Bradshaw PC, Bosted P, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Chen W, Chirapatpimol K, Chudakov E, Cisbani E, Cornejo JC, Cusanno F, Dalton MM, Deconinck W, de Jager CW, De Leo R, Deng X, Deur A, Ding H, Dolph PAM, Dutta D, El Fassi L, Frullani S, Gao H, Garibaldi F, Gaskell D, Gilad S, Gilman R, Glamazdin O, Golge S, Guo L, Hamilton D, Hansen O, Higinbotham DW, Holmstrom T, Huang M, Ibrahim HF, Iodice M, Jiang X, Jin G, Jones MK, Kelleher A, Kim W, Kolarkar A, Korsch W, Lerose JJ, Li X, Li Y, Lindgren R, Liyanage N, Long E, Lu HJ, Margaziotis DJ, Markowitz P, Marrone S, McNulty D, Meziani ZE, Michaels R, Moffit B, Muñoz Camacho C, Nanda S, Narayan A, Nelyubin V, Norum B, Oh Y, Osipenko M, Parno D, Peng JC, Phillips SK, Posik M, Puckett AJR, Qiang Y, Rakhman A, Ransome RD, Riordan S, Saha A, Sawatzky B, Schulte E, Shahinyan A, Shabestari MH, Sirca S, Stepanyan S, Subedi R, Sulkosky V, Tang LG, Tobias A, Urciuoli GM, Vilardi I, Wang K, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yuan L, Zhan X, Zhang YW, Zhao B, Zheng X, Zhu L, Zhu X, Zong X. Beam-target double-spin asymmetry A{LT} in charged pion production from deep inelastic scattering on a transversely polarized {3}He target at 1.4<Q{2}<2.7 GeV{2}. Phys Rev Lett 2012; 108:052001. [PMID: 22400926 DOI: 10.1103/physrevlett.108.052001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Indexed: 05/31/2023]
Abstract
We report the first measurement of the double-spin asymmetry A{LT} for charged pion electroproduction in semi-inclusive deep-inelastic electron scattering on a transversely polarized {3}He target. The kinematics focused on the valence quark region, 0.16<x<0.35 with 1.4<Q{2}<2.7 GeV{2}. The corresponding neutron A{LT} asymmetries were extracted from the measured {3}He asymmetries and proton over {3}He cross section ratios using the effective polarization approximation. These new data probe the transverse momentum dependent parton distribution function g{1T}{q} and therefore provide access to quark spin-orbit correlations. Our results indicate a positive azimuthal asymmetry for π{-} production on {3}He and the neutron, while our π{+} asymmetries are consistent with zero.
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Affiliation(s)
- J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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Aad G, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, Abi B, Abolins M, Abramowicz H, Abreu H, Acerbi E, Acharya BS, Adams DL, Addy TN, Adelman J, Aderholz M, Adomeit S, Adragna P, Adye T, Aefsky S, Aguilar-Saavedra JA, Aharrouche M, Ahlen SP, Ahles F, Ahmad A, Ahsan M, Aielli G, Akdogan T, Akesson TPA, Akimoto G, Akimov AV, Akiyama A, Alam MS, Alam MA, Albert J, Albrand S, Aleksa M, Aleksandrov IN, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Aliyev M, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alvarez Gonzalez B, Alviggi MG, Amako K, Amaral P, Amelung C, Ammosov VV, Amorim A, Amorós G, Amram N, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anderson KJ, Andreazza A, Andrei V, Andrieux ML, Anduaga XS, Angerami A, Anghinolfi F, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonov A, Antos J, Anulli F, Aoun S, Aperio Bella L, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Archambault JP, Arfaoui S, Arguin JF, Arik E, Arik M, Armbruster AJ, Arnaez O, Artamonov A, Artoni G, Arutinov D, Asai S, Asfandiyarov R, Ask S, Asman B, Asquith L, Assamagan K, Astbury A, Astvatsatourov A, Atoian G, Aubert B, Auge E, Augsten K, Aurousseau M, Avolio G, Avramidou R, Axen D, Ay C, Azuelos G, Azuma Y, Baak MA, Baccaglioni G, Bacci C, Bach AM, Bachacou H, Bachas K, Bachy G, Backes M, Backhaus M, Badescu E, Bagnaia P, Bahinipati S, Bai Y, Bailey DC, Bain T, Baines JT, Baker OK, Baker MD, Baker S, Banas E, Banerjee P, Banerjee S, Banfi D, Bangert A, Bansal V, Bansil HS, Barak L, Baranov SP, Barashkou A, Barbaro Galtieri A, Barber T, Barberio EL, Barberis D, Barbero M, Bardin DY, Barillari T, Barisonzi M, Barklow T, Barlow N, Barnett BM, Barnett RM, Baroncelli A, Barone G, Barr AJ, Barreiro F, Barreiro Guimarães da Costa J, Bartoldus R, Barton AE, Bartsch V, Bates RL, Batkova L, Batley JR, Battaglia A, Battistin M, Battistoni G, Bauer F, Bawa HS, Beare B, Beau T, Beauchemin PH, Beccherle R, Bechtle P, Beck HP, Becker S, Beckingham M, Becks KH, Beddall AJ, Beddall A, Bedikian S, Bednyakov VA, Bee CP, Begel M, Behar Harpaz S, Behera PK, Beimforde M, Belanger-Champagne C, Bell PJ, Bell WH, Bella G, Bellagamba L, Bellina F, Bellomo M, Belloni A, Beloborodova O, Belotskiy K, Beltramello O, Ben Ami S, Benary O, Benchekroun D, Benchouk C, Bendel M, Benekos N, Benhammou Y, Benjamin DP, Benoit M, Bensinger JR, Benslama K, Bentvelsen S, Berge D, Bergeaas Kuutmann E, Berger N, Berghaus F, Berglund E, Beringer J, Bernat P, Bernhard R, Bernius C, Berry T, Bertin A, Bertinelli F, Bertolucci F, Besana MI, Besson N, Bethke S, Bhimji W, Bianchi RM, Bianco M, Biebel O, Bieniek SP, Bierwagen K, Biesiada J, Biglietti M, Bilokon H, Bindi M, Binet S, Bingul A, Bini C, Biscarat C, Bitenc U, Black KM, Blair RE, Blanchard JB, Blanchot G, Blazek T, Blocker C, Blocki J, Blondel A, Blum W, Blumenschein U, Bobbink GJ, Bobrovnikov VB, Bocchetta SS, Bocci A, Boddy CR, Boehler M, Boek J, Boelaert N, Böser S, Bogaerts JA, Bogdanchikov A, Bogouch A, Bohm C, Boisvert V, Bold T, Boldea V, Bolnet NM, Bona M, Bondarenko VG, Bondioli M, Boonekamp M, Boorman G, Booth CN, Bordoni S, Borer C, Borisov A, Borissov G, Borjanovic I, Borroni S, Bos K, Boscherini D, Bosman M, Boterenbrood H, Botterill D, Bouchami J, Boudreau J, Bouhova-Thacker EV, Bourdarios C, Bousson N, Boveia A, Boyd J, Boyko IR, Bozhko NI, Bozovic-Jelisavcic I, Bracinik J, Braem A, Branchini P, Brandenburg GW, Brandt A, Brandt G, Brandt O, Bratzler U, Brau B, Brau JE, Braun HM, Brelier B, Bremer J, Brenner R, Bressler S, Breton D, Britton D, Brochu FM, Brock I, Brock R, Brodbeck TJ, Brodet E, Broggi F, Bromberg C, Brooijmans G, Brooks WK, Brown G, Brown H, Bruckman de Renstrom PA, Bruncko D, Bruneliere R, Brunet S, Bruni A, Bruni G, Bruschi M, Buanes T, Bucci F, Buchanan J, Buchanan NJ, Buchholz P, Buckingham RM, Buckley AG, Buda SI, Budagov IA, Budick B, Büscher V, Bugge L, Buira-Clark D, Bulekov O, Bunse M, Buran T, Burckhart H, Burdin S, Burgess T, Burke S, Busato E, Bussey P, Buszello CP, Butin F, Butler B, Butler JM, Buttar CM, Butterworth JM, Buttinger W, Cabrera Urbán S, Caforio D, Cakir O, Calafiura P, Calderini G, Calfayan P, Calkins R, Caloba LP, Caloi R, Calvet D, Calvet S, Camacho Toro R, Camarri P, Cambiaghi M, Cameron D, Caminada LM, Campana S, Campanelli M, Canale V, Canelli F, Canepa A, Cantero J, Capasso L, Capeans Garrido MDM, Caprini I, Caprini M, Capriotti D, Capua M, Caputo R, Cardarelli R, Carli T, Carlino G, Carminati L, Caron B, Caron S, Carrillo Montoya GD, Carter AA, Carter JR, Carvalho J, Casadei D, Casado MP, Cascella M, Caso C, Castaneda Hernandez AM, Castaneda-Miranda E, Castillo Gimenez V, Castro NF, Cataldi G, Cataneo F, Catinaccio A, Catmore JR, Cattai A, Cattani G, Caughron S, Cauz D, Cavalleri P, Cavalli D, Cavalli-Sforza M, Cavasinni V, Ceradini F, Cerqueira AS, Cerri A, Cerrito L, Cerutti F, Cetin SA, Cevenini F, Chafaq A, Chakraborty D, Chan K, Chapleau B, Chapman JD, Chapman JW, Chareyre E, Charlton DG, Chavda V, Chavez Barajas CA, Cheatham S, Chekanov S, Chekulaev SV, Chelkov GA, Chelstowska MA, Chen C, Chen H, Chen S, Chen T, Chen X, Cheng S, Cheplakov A, Chepurnov VF, Cherkaoui El Moursli R, Chernyatin V, Cheu E, Cheung SL, Chevalier L, Chiefari G, Chikovani L, Childers JT, Chilingarov A, Chiodini G, Chizhov MV, Choudalakis G, Chouridou S, Christidi IA, Christov A, Chromek-Burckhart D, Chu ML, Chudoba J, Ciapetti G, Ciba K, Ciftci AK, Ciftci R, Cinca D, Cindro V, Ciobotaru MD, Ciocca C, Ciocio A, Cirilli M, Ciubancan M, Clark A, Clark PJ, Cleland W, Clemens JC, Clement B, Clement C, Clifft RW, Coadou Y, Cobal M, Coccaro A, Cochran J, Coe P, Cogan JG, Coggeshall J, Cogneras E, Cojocaru CD, Colas J, Colijn AP, Collard C, Collins NJ, Collins-Tooth C, Collot J, Colon G, Conde Muiño P, Coniavitis E, Conidi MC, Consonni M, Consorti V, Constantinescu S, Conta C, Conventi F, Cook J, Cooke M, Cooper BD, Cooper-Sarkar AM, Copic K, Cornelissen T, Corradi M, Corriveau F, Cortes-Gonzalez A, Cortiana G, Costa G, Costa MJ, Costanzo D, Costin T, Côté D, Courneyea L, Cowan G, Cowden C, Cox BE, Cranmer K, Crescioli F, Cristinziani M, Crosetti G, Crupi R, Crépé-Renaudin S, Cuciuc CM, Cuenca Almenar C, Cuhadar Donszelmann T, Curatolo M, Curtis CJ, Cwetanski P, Czirr H, Czyczula Z, D'Auria S, D'Onofrio M, D'Orazio A, Da Silva PVM, Da Via C, Dabrowski W, Dai T, Dallapiccola C, Dam M, Dameri M, Damiani DS, Danielsson HO, Dannheim D, Dao V, Darbo G, Darlea GL, Daum C, Davidek T, Davidson N, Davidson R, Davies E, Davies M, Davison AR, Davygora Y, Dawe E, Dawson I, Dawson JW, Daya RK, De K, de Asmundis R, De Castro S, De Castro Faria Salgado PE, De Cecco S, de Graat J, De Groot N, de Jong P, De La Taille C, De la Torre H, De Lotto B, De Mora L, De Nooij L, De Pedis D, De Salvo A, De Sanctis U, De Santo A, De Vivie De Regie JB, Dean S, Debbe R, Debenedetti C, Dedovich DV, Degenhardt J, Dehchar M, Del Papa C, Del Peso J, Del Prete T, Delemontex T, Deliyergiyev M, Dell'acqua A, Dell'Asta L, Della Pietra M, della Volpe D, Delmastro M, Delruelle N, Delsart PA, Deluca C, Demers S, Demichev M, Demirkoz B, Deng J, Denisov SP, Derendarz D, Derkaoui JE, Derue F, Dervan P, Desch K, Devetak E, Deviveiros PO, Dewhurst A, Dewilde B, Dhaliwal S, Dhullipudi R, Di Ciaccio A, Di Ciaccio L, Di Girolamo A, Di Girolamo B, Di Luise S, Di Mattia A, Di Micco B, Di Nardo R, Di Simone A, Di Sipio R, Diaz MA, Diblen F, Diehl EB, Dietrich J, Dietzsch TA, Dindar Yagci K, Dingfelder J, Dionisi C, Dita P, Dita S, Dittus F, Djama F, Djobava T, do Vale MAB, Do Valle Wemans A, Doan TKO, Dobbs M, Dobinson R, Dobos D, Dobson E, Dobson M, Dodd J, Doglioni C, Doherty T, Doi Y, Dolejsi J, Dolenc I, Dolezal Z, Dolgoshein BA, Dohmae T, Donadelli M, Donega M, Donini J, Dopke J, Doria A, Dos Anjos A, Dosil M, Dotti A, Dova MT, Dowell JD, Doxiadis AD, Doyle AT, Drasal Z, Drees J, Dressnandt N, Drevermann H, Driouichi C, Dris M, Dubbert J, Dube S, Duchovni E, Duckeck G, Dudarev A, Dudziak F, Dührssen M, Duerdoth IP, Duflot L, Dufour MA, Dunford M, Duran Yildiz H, Duxfield R, Dwuznik M, Dydak F, Düren M, Ebenstein WL, Ebke J, Eckweiler S, Edmonds K, Edwards CA, Edwards NC, Ehrenfeld W, Ehrich T, Eifert T, Eigen G, Einsweiler K, Eisenhandler E, Ekelof T, El Kacimi M, Ellert M, Elles S, Ellinghaus F, Ellis K, Ellis N, Elmsheuser J, Elsing M, Emeliyanov D, Engelmann R, Engl A, Epp B, Eppig A, Erdmann J, Ereditato A, Eriksson D, Ernst J, Ernst M, Ernwein J, Errede D, Errede S, Ertel E, Escalier M, Escobar C, Espinal Curull X, Esposito B, Etienne F, Etienvre AI, Etzion E, Evangelakou D, Evans H, Fabbri L, Fabre C, Fakhrutdinov RM, Falciano S, Fang Y, Fanti M, Farbin A, Farilla A, Farley J, Farooque T, Farrington SM, Farthouat P, Fassnacht P, Fassouliotis D, Fatholahzadeh B, Favareto A, Fayard L, Fazio S, Febbraro R, Federic P, Fedin OL, Fedorko W, Fehling-Kaschek M, Feligioni L, Feng C, Feng EJ, Fenyuk AB, Ferencei J, Ferland J, Fernando W, Ferrag S, Ferrando J, Ferrara V, Ferrari A, Ferrari P, Ferrari R, Ferrer A, Ferrer ML, Ferrere D, Ferretti C, Ferretto Parodi A, Fiascaris M, Fiedler F, Filipčič A, Filippas A, Filthaut F, Fincke-Keeler M, Fiolhais MCN, Fiorini L, Firan A, Fischer G, Fischer P, Fisher MJ, Flechl M, Fleck I, Fleckner J, Fleischmann P, Fleischmann S, Flick T, Flores Castillo LR, Flowerdew MJ, Fokitis M, Fonseca Martin T, Forbush DA, Formica A, Forti A, Fortin D, Foster JM, Fournier D, Foussat A, Fowler AJ, Fowler K, Fox H, Francavilla P, Franchino S, Francis D, Frank T, Franklin M, Franz S, Fraternali M, Fratina S, French ST, Friedrich F, Froeschl R, Froidevaux D, Frost JA, Fukunaga C, Fullana Torregrosa E, Fuster J, Gabaldon C, Gabizon O, Gadfort T, Gadomski S, Gagliardi G, Gagnon P, Galea C, Gallas EJ, Gallo V, Gallop BJ, Gallus P, Gan KK, Gao YS, Gapienko VA, Gaponenko A, Garberson F, Garcia-Sciveres M, García C, García Navarro JE, Gardner RW, Garelli N, Garitaonandia H, Garonne 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Zhong J, Zhou B, Zhou N, Zhou Y, Zhu CG, Zhu H, Zhu J, Zhu Y, Zhuang X, Zhuravlov V, Zieminska D, Zimmermann R, Zimmermann S, Zimmermann S, Ziolkowski M, Zitoun R, Zivković L, Zmouchko VV, Zobernig G, Zoccoli A, Zolnierowski Y, Zsenei A, Zur Nedden M, Zutshi V, Zwalinski L. Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at sqrt[s] = 7 TeV with the ATLAS detector. Phys Rev Lett 2012; 108:041804. [PMID: 22400826 DOI: 10.1103/physrevlett.108.041804] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2011] [Indexed: 05/31/2023]
Abstract
A measurement of the ZZ production cross section in proton-proton collisions at sqrt[s] = 7 TeV using data corresponding to an integrated luminosity of 1.02 fb(-1) recorded by the ATLAS experiment at the LHC is presented. Twelve events containing two Z boson candidates decaying to electrons and/or muons are observed, with an expected background of 0.3 ± 0.3(stat)(-0.3)(+0.4)(syst) events. The cross section measured in a phase-space region with good detector acceptance and for dilepton masses within the range 66 to 116 GeV is σ(ZZ → ℓ+ ℓ- ℓ+ ℓ-)(fid) = 19.4(-5.2)(+6.3)(stat)(-0.7)(+0.9)(syst) ± 0.7(lumi) fb. The resulting total cross section for on-shell ZZ production, σ(ZZ)(tot) = 8.5(-2.3)(+2.7)(stat)(-0.3)(+0.4)(syst) ± 0.3(lumi) pb, is consistent with the standard model expectation of 6.5(-0.2)(+0.3) pb calculated at the next-to-leading order in QCD. Limits on anomalous neutral triple gauge boson couplings are derived.
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Affiliation(s)
- G Aad
- Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg i.Br., Germany
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Jin G, Yang Y, Zhou X, Meng X. Influence of Anions on the Self-assembly of Cd(II)-containing Coordination Polymers Based on the Flexible Ligand 2-((1H-1,2,4-Triazol-1-yl)methyl)-1H-benzimidazole. Z Naturforsch B 2012. [DOI: 10.5560/znb.2012.67b0029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Qian F, Zhang Q, Zhou L, Ma G, Jin G, Huang Q, Yin K. Association between polymorphisms in IL17F and male asthma in a Chinese population. J Investig Allergol Clin Immunol 2012; 22:257-263. [PMID: 22812194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Interleukin (IL) 17F is a marker of type 17 helper T cells and has a proinflammatory role in asthma.The aim of the present study was to assess the possible association between asthma and polymorphisms in the IL17F gene in a Chinese population. METHODS A total of 318 asthmatic patients and 352 nonasthmatic controls were recruited. Two single-nucleotide polymorphisms in IL17F (rs763780 and rs13209590) were detected using GenomeLab SNPstream. Logistic regression methods were used to analyze data. RESULTS A significantly lower frequency of the C allele in rs763780 was observed in the control group (P = .0148). The rs763780 TC heterozygote was associated with an increased risk of asthma, and a similar trend was observed assuming a codominant genotype effect (adjusted OR, 1.58; 95% CI, 1.06-2.36; P = .0148; adjusted OR, 1.64; 95% CI, 1.10-2.45; P = .0217). Furthermore, a novel finding of the present study was that this association was exclusive to males (adjusted OR, 1.79; 95% CI, 1.06-3.05; P = .0308) and patients with higher immunoglobulin E levels (> or = 1.85 IU/mL) (adjusted OR, 1.88; 95% CI, 1.10-3.22; P = .0213). We also found that the haplotype with minor alleles for rs763780 was associated with an increased risk of asthma (adjusted OR, 1.62; 95% CI, 1.11-2.35; P = .0115). CONCLUSION Our findings indicated that polymorphisms might play a role in susceptibility to asthma.
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Affiliation(s)
- F Qian
- Department of Respiratory Medicine, Affiliated Hospital, Jiangsu University, Zhenjiang, Jiangsu, China.
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Qian X, Allada K, Dutta C, Huang J, Katich J, Wang Y, Zhang Y, Aniol K, Annand JRM, Averett T, Benmokhtar F, Bertozzi W, Bradshaw PC, Bosted P, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Chen W, Chirapatpimol K, Chudakov E, Cisbani E, Cornejo JC, Cusanno F, Dalton MM, Deconinck W, de Jager CW, De Leo R, Deng X, Deur A, Ding H, Dolph PAM, Dutta D, El Fassi L, Frullani S, Gao H, Garibaldi F, Gaskell D, Gilad S, Gilman R, Glamazdin O, Golge S, Guo L, Hamilton D, Hansen O, Higinbotham DW, Holmstrom T, Huang M, Ibrahim HF, Iodice M, Jiang X, Jin G, Jones MK, Kelleher A, Kim W, Kolarkar A, Korsch W, LeRose JJ, Li X, Li Y, Lindgren R, Liyanage N, Long E, Lu HJ, Margaziotis DJ, Markowitz P, Marrone S, McNulty D, Meziani ZE, Michaels R, Moffit B, Camacho CM, Nanda S, Narayan A, Nelyubin V, Norum B, Oh Y, Osipenko M, Parno D, Peng JC, Phillips SK, Posik M, Puckett AJR, Qiang Y, Rakhman A, Ransome RD, Riordan S, Saha A, Sawatzky B, Schulte E, Shahinyan A, Shabestari MH, Sirca S, Stepanyan S, Subedi R, Sulkosky V, Tang LG, Tobias A, Urciuoli GM, Vilardi I, Wang K, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yuan L, Zhan X, Zhang YW, Zhao B, Zheng X, Zhu L, Zhu X, Zong X. Single spin asymmetries in charged pion production from semi-inclusive deep inelastic scattering on a transversely polarized 3He Target at Q2 = 1.4-2.7 GeV2. Phys Rev Lett 2011; 107:072003. [PMID: 21902386 DOI: 10.1103/physrevlett.107.072003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Indexed: 05/31/2023]
Abstract
We report the first measurement of target single spin asymmetries in the semi-inclusive (3)He(e,e'π(±))X reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV(2). The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The π(±) Collins moments for (3)He are consistent with zero, except for the π(+) moment at x = 0.35, which deviates from zero by 2.3σ. While the π(-) Sivers moments are consistent with zero, the π(+) Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to (3)He, and are largely consistent with the predictions of phenomenological fits and quark model calculations.
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Affiliation(s)
- X Qian
- Duke University, Durham, North Carolina 27708, USA.
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Jin G, Bausch D, Li Y, Liu B, Lu J, Fukudome E, Chong W, Velmahos G, Thayer S, Alam H. Valproic Acid Promotes Endothelial Cell Sprouting And Angiogenesis In-Vitro. J Surg Res 2011. [DOI: 10.1016/j.jss.2010.11.533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li Y, Liu B, Fukudome E, Lu J, Chong W, Jin G, Velmahos G, DeMoya M, King D, Alam H. Early Measurement Of Circulating Proteins Can Predict Survival In Lethal Septic Shock. J Surg Res 2011. [DOI: 10.1016/j.jss.2010.11.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kim K, Jin G, Li Y, Liu B, Liu J, Lee K, Chong W, Velmahos G, King D, Alam H. Treatment With Valproic Acid After Lethal Intentinal Ischemia-Reperfusion Can Prolong Survival And Attenuate Pulmonary Damage In A Rodent Model. J Surg Res 2011. [DOI: 10.1016/j.jss.2010.11.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Modareszadeh MR, Chogle SA, Mickel AK, Jin G, Kowsar H, Salamat N, Shaikh S, Qutbudin S. Cytotoxicity of set polymer nanocomposite resin root-end filling materials. Int Endod J 2010; 44:154-61. [PMID: 21083578 DOI: 10.1111/j.1365-2591.2010.01825.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To evaluate the cytotoxicity of two forms of the novel root-end filling materials, polymer nanocomposite (PNC) resins [C-18 Amine montmorillonate (MMT) and VODAC MMT] both containing Chlorhexidine Diacetate Salt Hydrate 2%, and to compare it to that of two widely accepted commercially available materials, ProRoot® MTA and Geristore®. METHODOLOGY Elutes of experimental materials extracted after 24 h, 1, 2 and 3 weeks were interacted with the mouse fibroblasts L-929 using a colorimetric cell viability assay (MTS) based on mitochondrial dehydrogenases activity. Using 100% and 50% concentrations of the extracted elutes of the experimental materials the effect of different concentrations of elutes on the cells was analysed. In the positive control group Hygrogold® was added to the cell culture to arrest cells bioactivity. In the negative control group, fresh Dulbecco's Eagle's minimum essential medium supplemented with 10% foetal bovine serum was used to enhance cell bioactivity. Differences in mean bioactivity values were assessed using a t-test and one-way anova (P<0.05). RESULTS No significant difference was found in cytotoxicity between ProRoot® MTA, Geristore® and PNC resin C-18 Amine MMT on 24 h, 1, 2 and 3 weeks samples. Sample elutes of PNC resin VODAC MMT, however, revealed cytotoxic activity during most of these experiments. CONCLUSION Cytotoxicity of the elutes of PNC resin C-18 Amine MMT was not significantly different from that of ProRoot® and Geristore®. PNC resin VODAC MMT, revealed significantly more cytotoxicity compared to the other tested materials.
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Affiliation(s)
- M R Modareszadeh
- Department of Endodontics, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.
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Jin G, Zhou X, Lewis M, Rosen J, Wong S. Signal-Transduction Based Network Biomarkers for Tumor-Initiating Cells in a p53-Null Mouse Model of Breast Cancer. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-2138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Tumor initiating cells (TICs), or cancer stem cells, have the capacity to self-renew, and are likely to be responsible for resistance to conventional therapies, disease recurrence, and metastasis. Known TIC biomarkers may allow us to understand which genes are critical to self-renewal of TICs. However, little is known about how these biomarkers manipulate other molecules to enable TICs to self-renew. Here, we develop a systems biology approach to identify the signal-transduction network biomarkers for understanding the mechanisms in the renewal of TICs.Methods: Comparing with conventional biomarker discovery, the network biomarkers are identified by not only differential genes but also protein-protein interaction (PPI) network and available signaling pathways. Depending on the interacting patterns in PPI network and their associated cellular processes in signaling pathways, we can reveal the key signal transductions or subnetworks responsible for self-renewal of TICs. We chose two types of enriched interacting patterns, i.e. triangle and spoon, to indicate the signal transductions around the single biomarkers. A published RNA microarray (GSE8863) was performed on mammary epithelial cells from p53-null tumors sorted by two stem cell markers CD29 and CD24. The differential genes were identified by the Fold-Changes (FCs) comparing the subpopulations of Lin —CD29HCD24H with other subpopulations. Gene Set Enrichment Analysis (GSEA) revealed that the identified differential genes are significantly enriched in 20 regulatory pathways including 'Cell cycle', 'Adherens junction', 'Cell adhesion molecules (CAMs)', 'Tight junction' (P<10-3). A model called Multiple Objective Optimization (MOO) was employed to search the network biomarkers whose component proteins satisfy that (1) be most differentially expressed in Lin —CD29HCD24H cells and (2) pass through a large number of enriched signaling pathways.Results: Four genes (Lsm5, Calm3, Bmi1 and Ezh2) are extremely up-regulated in the Lin —CD29HCD24H subpopulations (FC>4), in which Bmi1 is important in regulating the self-renewal capacity of hematopoietic, as well as human mammary gland stem cells. To understand how these genes manipulate other genes and the enriched signaling pathways, we first analyzed the interacting patterns around these genes. Calm3 and Bmi1 are surrounded by 355 and 22 interacting patterns respectively. The component coding-genes in the interacting patterns are more likely to be differentially expressed (91/127, P <10-61). Then, the protein-paths were identified from the interacting patterns of Calm3 and Bmi1 by MOO. IPA (Ingenuity Pathway Analysis) indicated that these protein paths have many particular cellular functions related to self-renewal, such as 'Cell Growth and Proliferation', 'Hematological System Development and Function', 'Cell-To-Cell Signaling and Interaction', and 'Cell Death' (P <10-3).Conclusion: The network biomarkers revealed that the surrounding interaction patterns and related signaling pathways of single biomarkers are essential to understand the signal-transduction mechanisms of TICs in self-renewal. They may be useful as prognostic or predictive indicators as well as suggest possible targets for novel therapies.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 2138.
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Affiliation(s)
- G. Jin
- 1The Methodist Hospital & Weill Cornell Medical College, TX,
| | - X. Zhou
- 1The Methodist Hospital & Weill Cornell Medical College, TX,
| | - M. Lewis
- 2Baylor College of Medicine, TX,
| | - J. Rosen
- 2Baylor College of Medicine, TX,
| | - S. Wong
- 1The Methodist Hospital & Weill Cornell Medical College, TX,
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Zhao H, Cui K, Nie F, Jin G, Li F, Wu L, Wang L, Brandl M, Yilidirim N, Zhang S, Sun A, Wong S. Effects of Rapamycin on Breast Cancer Cell Migration through the Cross-Talk of MAPK Pathway. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-5080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Phase I/II clinical studies with rapamycin analogs in breast and other cancers have demonstrated favorable responses. However, little is known on the effects of the mTOR inhibitor on breast cancer cell metastasis, which is a major cause of morbidity and death. We developed a highly sensitive 3-dimensional (3D) proliferation/invasion assay using quantitative bioluminescence (BL) imaging and applied this assay to evaluate the effects of rapamycin on the triple negative breast cancer cell line MDA-MB231. Without cytotoxicity of rapamycin on this cell line, rapamycin at 10nM inhibited the cell migration/invasion, but not at 1nM and 100nM, which was confirmed by the time-lapse single cell tracking analysis. The quantification of cytoskeleton changes showed most potent effects of 10nM rapamycin on the MDA-MB231 cells, with the formation and rearrangement of specialized cell membrane structures and actin fiber implicated in cell motility. Then, the Panorama Cell Signaling Antibody Microarray, enabling the global comparative analysis of cell signal proteins simultaneously, was exploited to analyze the effects of rapamycin on the cellular signaling network of the MDA-MB231 breast cancer cell line. 100nM rapamycin activated the MAPK pathway obviously, through the attenuated negative feedback of activated S6K1 to PI3K-Raf, which increased the expressions of activated Jun N-terminus kinase (JNK), Erk1/2, MEK-1, Raf-pS621, and MAPK-activated protein kinase 2 (MAPKAPK2) in the cells exposed to 100nM rapamycin. MEK inhibitor U0126 or PD98059 could restore the anti-migration effects of 100nM rapamycin on the MDA-MB231 cells. Furthermore, the combination of MEK inhibitors and rapamycin performed synergism on inhibiting the cell proliferation and migration/invasion. Accordingly, rapamycin at a certain dose suppresses MDA-MB231 cell migration/invasion, and the co-targeting of mTOR and MAPK pathways enhances the inhibition on cell proliferation and migration/invasion, underscoring the potential therapeutic utility of rapamycin, and rapamycin combining with MAPK inhibitors in triple negative breast cancer progression, and the results highlight the cross-talk homeostasis of mTOR and MAPK pathways in cancer treatment.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 5080.
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Affiliation(s)
- H. Zhao
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - K. Cui
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - F. Nie
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - G. Jin
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - F. Li
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - L. Wu
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - L. Wang
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - M. Brandl
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - N. Yilidirim
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - S. Zhang
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - A. Sun
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
| | - S. Wong
- 1The Methodist Hospital, Weill Cornell Medical College, TX,
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78
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Abstract
A biosensor based on imaging ellipsometry (BIE) has been developed and validated in 169 patients for detecting five markers of hepatitis B virus (HBV) infection. The methodology has been established to pave the way for clinical diagnosis, including ligand screening, determination of the sensitivity, set-up of cut-off values (CoVs) and comparison with other clinical methods. A matrix assay method was established for ligand screening. The CoVs of HBV markers were derived with the help of receiver operating characteristic curves. Enzyme-linked immunosorbent assay (ELISA) was the reference method. Ligands with high bioactivity were selected and sensitivities of 1 ng/mL and 1 IU/mL for hepatitis B surface antigen (HBsAg) and surface antibody (anti-HBs) were obtained respectively. The CoVs of HBsAg, anti-HBs, hepatitis B e antigen, hepatitis B e antibody and core antibody were as follows: 15%, 18%, 15%, 20% and 15%, respectively, which were the percentages over the values of corresponding ligand controls. BIE can simultaneously detect up to five markers within 1 h with results in acceptable agreement with ELISA, and thus shows a potential for diagnosing hepatitis B with high throughput.
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Affiliation(s)
- C Qi
- Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
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79
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Jin G, Wong S, Chen L, Zhang XS, Cui K, Zhou X. Cross-platform method for identifying candidate network biomarkers for prostate cancer. IET Syst Biol 2009; 3:505-12. [DOI: 10.1049/iet-syb.2008.0168] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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80
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Wang X, Chao L, Jin G, Ma G, Zang Y, Sun J. Association between CpG island methylation of the WWOX gene and its expression in breast cancers. Tumour Biol 2009; 30:8-14. [PMID: 19188760 DOI: 10.1159/000197911] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2008] [Accepted: 12/03/2008] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES The aim of the present study was to evaluate the expression of the WWOX gene in breast carcinoma and to analyze the relationship between its expression and methylation. METHODS Methylation of the WWOX promoter and exon 1 as well as WWOX expression were determined by methylation-specific PCR, reverse transcription PCR and immunohistochemistry in 20 breast cancer tissue samples and corresponding nonneoplastic tissues. The expression of WWOX protein was evaluated by immunohistochemistry in 2 breast cancer cell lines. RESULTS WWOX mRNA expression was reduced in breast cancer tissues as compared to adjacent tissues (p < 0.001). WWOX mRNA and protein expression was significantly reduced in breast cancer tissues with methylated WWOX CpG islands when compared to tissues without methylation (p < 0.001 and p = 0.008, respectively). Immunohistochemical analysis also showed that WWOX levels were significantly decreased in tissues with WWOX methylation (p = 0.001). WWOX mRNA and protein expression was greatly reduced in MDA-MB-231 cells, partly due to the methylation of WWOX CpG islands, and recovered after hydralazine treatment. CONCLUSIONS Differential regulation of the WWOX gene plays an important role in the carcinogenesis of breast cancer, due partially to methylation of the WWOX DNA CpG islands.
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Affiliation(s)
- X Wang
- Department of Breast Surgery, Jinan Central Hospital, Medical College, Jinan, China
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81
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Meng YH, Chen YY, Qi C, Liu L, Jin G. An automatic imaging spectroscopic ellipsometer for characterization of nano-film pattern on solid substrate. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pssc.200777784] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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82
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Jin G, Zhao ZY, Wang ZH, Meng YH, Ying PQ, Chen S, Chen YY, Qi C, Xia LH. The development of biosensor with imaging ellipsometry. Conf Proc IEEE Eng Med Biol Soc 2007; 2004:1975-8. [PMID: 17272103 DOI: 10.1109/iembs.2004.1403583] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The concept of biosensor with imaging ellipsometry was proposed about ten years ago. It has become an automatic analysis technique for protein detection with merits of label-free, multi-protein analysis, and real-time analysis for protein interaction process, etc. Its principle, and related technique units, such as micro-array, micro-fluidic and bio-molecule interaction cell, sampling unit and calibration for quantitative detection as well as its applications in biomedicine field are presented here.
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Affiliation(s)
- G Jin
- Chinese Academy of Sciences, Beijing, China.
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83
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Jin G, Nakhleh L, Snir S, Tuller T. Maximum likelihood of phylogenetic networks. Bioinformatics 2007. [DOI: 10.1093/bioinformatics/btm075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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84
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Jin G, Zhang QM, Satou Y, Satoh N, Kasai H, Yonei S. Cloning and characterization of an ascidian homolog of the human 8-oxoguanine DNA glycosylase (Ogg1) that is involved in the repair of 8-oxo-7,8-dihydroguanine in DNA in Ciona intestinalis. Int J Radiat Biol 2006; 82:241-50. [PMID: 16690592 DOI: 10.1080/09553000600649216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PURPOSE It is of interest to perform a systematic comparative analysis of the conserved domains in DNA glycosylases and the evolution of DNA base excision repair systems. Furthermore, it is important to characterize the roles and regulation of base excision repair during the development of organisms. To address these issues, we first identified 8-oxo-7,8-dihydroguanine (8-oxoG)-DNA glycosylase (Ogg1) of the ascidian Ciona intestinalis as a good model system. MATERIALS AND METHODS A cDNA clone coding for a peptide with homology to human Ogg1 was identified in the expressed sequence tag (EST) database from the Ciona cDNA resources. We examined whether CiOgg1 has DNA glycosylase/AP (apurinic/apyrimidinic) lyase activities for 8-oxoG-containing oligonucleotide. Furthermore, the expression level of CiOgg1 was compared in various tissues of Ciona intestinalis. RESULTS The CiOgg1gene encoded a protein of 351 amino acids, which shows 37% identity of amino acid sequence with human Ogg1. The Helix-hairpin-Helix motif was highly conserved. The ascidian enzyme had functional 8-oxoG-DNA glycosylase/AP lyase activities, which removed 8-oxoG opposite cytosine from DNA. Expression of the CiOgg1 significantly reduced the frequency of spontaneous G:C to T:A transversions in E. coli mutM mutY. The highest expression level was observed in testis in Ciona intestinalis. CONCLUSIONS The structure and functions of Ogg1 are well conserved in Ciona intestinalis. CiOgg1 is involved in the repair of 8-oxoG in DNA in Ciona intestinalis.
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Affiliation(s)
- G Jin
- Laboratory of Radiation Biology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, Japan
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85
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Levin JI, Chen JM, Laakso LM, Du M, Schmid J, Xu W, Cummons T, Xu J, Jin G, Barone D, Skotnicki JS. Acetylenic TACE inhibitors. Part 3: Thiomorpholine sulfonamide hydroxamates. Bioorg Med Chem Lett 2006; 16:1605-9. [PMID: 16426848 DOI: 10.1016/j.bmcl.2005.12.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2005] [Revised: 12/05/2005] [Accepted: 12/07/2005] [Indexed: 11/29/2022]
Abstract
A series of thiomorpholine sulfonamide hydroxamate TACE inhibitors, all bearing propargylic ether P1' groups, was explored. In particular, compound 5h has excellent in vitro potency against isolated TACE enzyme and in cells, oral activity in a model of TNF-alpha production and a collagen-induced arthritis model, was selected as a clinical candidate for the treatment of RA.
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Affiliation(s)
- J I Levin
- Wyeth Research, 401 N. Middletown Road, Pearl River, NY 10965, USA.
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86
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Englande AJ, Eckenfelder WW, Jin G. Variability control: key to regulatory compliance and sustainability goals. Water Sci Technol 2006; 53:1-9. [PMID: 16862768 DOI: 10.2166/wst.2006.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The focus of this paper is on variability concerns in wastewater treatment and approaches to control unacceptable fluctuations in effluent quality. Areas considered include: factors contributing to variability in both waste loads and process technology performance; variability assessment; control of variability employing the process best management practice (BMP); design/operation of biological waste treatment technologies for variability reduction; and modelling to enhance process control.
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87
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88
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Zhang JJ, Jin G, Ma Y. Wetting-driven structure ordering of a copolymer/homopolymer/nanoparticle mixture in the presence of a modulated potential. Eur Phys J E Soft Matter 2005; 18:359-65. [PMID: 16292474 DOI: 10.1140/epje/e2005-00044-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2005] [Indexed: 05/05/2023]
Abstract
We investigate pattern formation on a solid substrate of a diblock copolymer-homopolymer mixture containing doping wettable nanoparticles with a preferential attraction for one component of the copolymers, using a three-order-parameter model. The presence of doping nanoparticles under the surface-interaction modulation breaks the isotropy in the process of microphase-separation and macrophase-separation. This leads to the formation of orientational microphase and macrophase structures due to the interplay between the phase separation and wetting particle ordering under a modulated potential at the late stage. Simulations suggest that the microphase morphology and macrophase morphology can be changed through adjustment of the wetting strength, the amplitude as well as the period of the modulated potential. It provides some important insights for changing microphase and macrophase structures in polymer blends by wetting-driven spinodal decomposition.
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Affiliation(s)
- J-J Zhang
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P.R. China
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89
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90
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Jin G, Ikushima T. Frequent occurrence of UVB-induced sister chromatid exchanges in telomere regions and its implication to telomere maintenance. Cytogenet Genome Res 2004; 104:310-4. [PMID: 15162057 DOI: 10.1159/000077508] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2003] [Accepted: 12/05/2003] [Indexed: 11/19/2022] Open
Abstract
Sister chromatid exchanges (SCEs) are symmetrical exchanges between newly replicated chromatids and their sisters. While homologous recombination may be one of the principal mechanisms responsible for SCEs, the full details of their molecular basis and biological significance remain to be elucidated. Following exposure to ultraviolet light B (UVB), mitomycin C (MMC) and cisplatin, we analyzed the location of SCEs on metaphase chromosomes in Chinese hamster CHO cells. The frequency of SCEs increased over the spontaneous level in proportion to the agent's dose. UVB-induced SCEs occurred frequently in telomere regions, as cisplatin-induced SCEs did, differing from MMC-induced ones. The remarkable difference of intrachromosomal distribution among the three mutagens may be attributed to the specificity of induced DNA lesions and structures of different chromosome regions. Telomeric DNA at the end of chromosomes is composed of multiple copies of a repeated motif, 5'-TTAGGG-3' in mammalian cells. Telomeric repeats may be potential targets for UVB and cisplatin, which mainly form pyrimidine dimers and intrastrand d(GpG) cross-links, respectively, resulting in SCE formation. UVB irradiation shortened telomeres and augmented the telomerase activity. The possible implications of the frequent occurrence of SCEs in telomere regions are discussed in connection with the maintenance of telomere integrity.
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Affiliation(s)
- G Jin
- Laboratory of Molecular Genetics, Biology Division, Kyoto University of Education, Fushimi, Kyoto, Japan
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91
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Levin JI, Chen JM, Cheung K, Cole D, Crago C, Santos ED, Du X, Khafizova G, MacEwan G, Niu C, Salaski EJ, Zask A, Cummons T, Sung A, Xu J, Zhang Y, Xu W, Ayral-Kaloustian S, Jin G, Cowling R, Barone D, Mohler KM, Black RA, Skotnicki JS. Acetylenic TACE inhibitors. Part 1. SAR of the acyclic sulfonamide hydroxamates. Bioorg Med Chem Lett 2003; 13:2799-803. [PMID: 12873518 DOI: 10.1016/s0960-894x(03)00514-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The SAR of a series of potent sulfonamide hydroxamate TACE inhibitors, all bearing a butynyloxy P1' group, was explored. In particular, compound 5j has excellent in vitro potency against isolated TACE enzyme and in cells, good selectivity over MMP-1 and MMP-9, and oral activity in an in vivo model of TNF-alpha production and a collagen-induced arthritis model.
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Affiliation(s)
- J I Levin
- Wyeth Research, 401 N Middletown Rd, Pearl River, NY 10965, USA.
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92
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Wang SJ, Omori N, Li F, Jin G, Hamakawa Y, Sato K, Nagano I, Shoji M, Abe K. Functional improvement by electro-acupuncture after transient middle cerebral artery occlusion in rats. Neurol Res 2003; 25:516-21. [PMID: 12866201 DOI: 10.1179/016164103101201751] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Functional recovery by the application of electro-acupuncture (EA) on different acupoints was investigated using a transient middle cerebral artery occlusion (MCAO) model in rat. Acupoints were Baihui (D20) plus Renzhong (D26) (MCAO + D group), and Hanyan (G4), Xuanlu (G5), Xuanli (G6), plus Qubin (G7) (MCAP + G group). Animals with EA treatment showed significant functional improvements from 12 days after the reperfusion against those without EA treatment. Among EA treated groups, MCAO + G showed a more significant recovery than MCAO + D. Infarct volume revealed the significant reduction in the EA treated groups especially in MCAO + G at 30 days. Immunohistochemical study showed a remarkable induction of vascular endothelial growth factor (VEGF) in astrocytes of the peri-infarct area at 30 days, more in EA treated groups than in groups treated with MCAO alone. These results suggest that the acupoints applied in this study are effective for the functional recovery, and an enhanced expression of VEGF may play a certain role in recovery process after stroke.
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Affiliation(s)
- S J Wang
- Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikatacho, Okayama 700-8558, Japan
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93
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94
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Zask A, Gu Y, Albright JD, Du X, Hogan M, Levin JI, Chen JM, Killar LM, Sung A, DiJoseph JF, Sharr MA, Roth CE, Skala S, Jin G, Cowling R, Mohler KM, Barone D, Black R, March C, Skotnicki JS. Synthesis and SAR of bicyclic heteroaryl hydroxamic acid MMP and TACE inhibitors. Bioorg Med Chem Lett 2003; 13:1487-90. [PMID: 12668018 DOI: 10.1016/s0960-894x(03)00127-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Potent and selective bicyclic heteroaryl hydroxamic acid MMP and TACE inhibitors were synthesized by a novel convergent route. Selectivity and efficacy versus MMPs and TACE could be controlled by appropriate substitution on the scaffolds and by variation of the P1' group. Select compounds were found to be effective in in vivo models of arthritis.
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Affiliation(s)
- A Zask
- Wyeth-Ayerst Research, 401N. Middletown Road, Pearl River, NY 10965, USA.
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95
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Abstract
Neuroprotective effects of glial cell line-derived neurotrophic factor (GDNF) on cell survival and death signals were investigated after 90 min of transient middle cerebral artery occlusion (MCAO) in rats. Immunoreactivities of phosphorylated Akt (p-Akt), cleaved caspase-9 (c-cas9), and -3 (c-cas3) increased after the reperfusion in the penumbra in vehicle group with peaks at 3 h, 8 h, and 1 day, respectively. Topical application of GDNF (6.8 micrograms/9 microliters) on brain surface potentiated and prolonged p-Akt activation, but suppressed activation of the caspases, and reduced the number of terminal deoxynucleotidyl transferase-mediated dUDP-biotin in situ nick labeling (TUNEL) positive cells. These results suggest that GDNF plays a protective role against ischemic injury by controlling the balance between Akt pathway and caspase cascades.
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Affiliation(s)
- G Jin
- Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikatacho, Okayama 700-8558, Japan
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96
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Jin G, Englande AJ, Qiu YL. An integrated treatability protocol for biotreatment/bioremediation of toxic pollutants generated by chemical industries. J Environ Sci Health A Tox Hazard Subst Environ Eng 2003; 38:597-607. [PMID: 12716066 DOI: 10.1081/ese-120016923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
To optimize the efficiency of bioremediation, treatability studies are needed to understand the fate of pollutants and environmental conditions under which microorganism growth is promoted and efficient degradation of these pollutants result. This article presents a recommended procedure which may achieve these goals. Results and treatability comparisons for candidate compounds including carbon tetrachloride (CT), methyl-tert-butyl-ether (MTBE) and hexachlorobutadiene (HCBD) are presented and discussed. Culture redox potential (ORP) which is an indicator or free electron activity of a system appeared to have a significant impact on CT biodegradation. Optimum biodegradation of CT by Pseudomonas cepacia was observed between -100 and -200mv. Under the optimum environmental conditions established during the batch-scale biotransformation study, 98 to 99.9% of CT and 70% of MTBE introduced into the continuous fixed-biofilm reactor were degraded. The biphasic model simulating biodegradation of CT and MTBE provided an excellent correlation in the fixed-biofilm study and was simple to apply as compared with other models.
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Affiliation(s)
- G Jin
- Department of Health Sciences, College of Applied Science and Technology, Illinois State University, Normal, Illinois, USA.
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97
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Omori N, Maruyama K, Jin G, Li F, Wang SJ, Hamakawa Y, Sato K, Nagano I, Shoji M, Abe K. Targeting of post-ischemic cerebral endothelium in rat by liposomes bearing polyethylene glycol-coupled transferrin. Neurol Res 2003; 25:275-9. [PMID: 12739237 DOI: 10.1179/016164103101201508] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
To achieve an efficient delivery targeting to post-ischemic cerebral vascular endothelium, PEG-liposome conjugated with transferrin (Tf) (Tf-PEG-liposome) was intravenously administered to the rats after 90 min of transient middle cerebral occlusion. The expression of Tf receptor (TfR) in the cerebral endothelium increased with a peak at 1 day after the reperfusion and returned to the control level by 6 days. The Tf-PEG fluorescence was marginally detectable in sham control brain, but remarkably increased with a peak at 2 days, showing about 70% of TfR positive vascular endothelium double-labeled with Tf-PEG. These results indicate that the Tf-PEG-liposome could be utilized as an efficient drug delivery tool to the brain after stroke.
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Affiliation(s)
- N Omori
- Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
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98
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Jin G, Englande AJ, Liu A. A preliminary study on coastal water quality monitoring and modeling. J Environ Sci Health A Tox Hazard Subst Environ Eng 2003; 38:493-509. [PMID: 12680578 DOI: 10.1081/ese-120016909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The overall objective of this study was to assess the impact of individual rainfall events on Lake Pontchartrain water quality and risk to swimmers. Indicator organisms in lake water under dry weather conditions, in storm water runoff (prior to dilution with lake water), and in the outfall plume within the lake following storm events were monitored and quantified. Results indicated that drainage canals constitute a significant microbial loading to lake waters. Significant reductions of indicator microbes are observed in the water column following two to three days after storm pumping events into the lake. A mathematical model incorporating advection, dispersion, and bacterial die-off gives fairly good prediction on E. coli, enterococcoi, and fecal coliform titers. The somewhat under estimation by model suggests re-suspension of sediment and re-introduction of the indicator organisms that attached to the sediment back into the water column. Future direction of model development should include the mechanism of re-suspension and survival of indicator organisms in sediment.
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Affiliation(s)
- G Jin
- Department of Health Sciences, School of Applied Science and Technology, Illinois State University, Normal, Illinois, USA.
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99
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Abstract
Glial cell line-derived neurotrophic factor (GDNF) activates protein kinase Akt/PKB by phosphorylation (p-Akt) which plays key roles in cell survival. In the current study, we investigated a temporal expression of p-Akt by immunohistochemical analysis after a topical application of GDNF to normal cerebral hemisphere of rats. Although p-Akt immunoreactivity was weakly present in the sham control neural cells, GDNF application greatly enhanced it at 3 h, which lasted until 1 day. These results indicate that p-Akt is expressed in neuronal cells under physiological conditions, and that topical application of GDNF greatly enhanced the phosphorylation of Akt in normal rat brain.
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Affiliation(s)
- G Jin
- Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikatacho, Okayama 700-8558, Japan
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100
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Omori N, Jin G, Li F, Zhang WR, Wang SJ, Hamakawa Y, Nagano I, Manabe Y, Shoji M, Abe K. Enhanced phosphorylation of PTEN in rat brain after transient middle cerebral artery occlusion. Brain Res 2002; 954:317-22. [PMID: 12414116 DOI: 10.1016/s0006-8993(02)03366-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A phosphatase PTEN (phosphatase and tensin homologue deleted on chromosome 10) is a tumor suppressor gene that suppresses cell growth, inhibits cell migration, and induces apoptosis. Phosphorylated form of PTEN (p-PTEN) is a key survival factor relating PI3K-Akt pathway and their downstream effectors. A spatiotemporal profiles of PTEN and p-PTEN expression were immunohistochemically examined after 90 min of transient middle cerebral artery occlusion in rats. In the ischemic core, PTEN progressively decreased by 3 days, whereas a rapid but transient increase of p-PTEN was found with a peak at 1 h after the reperfusion. In contrast, in the ischemic penumbra, PTEN showed a minor change and a gradual but sustained p-PTEN expression was observed in the ischemic penumbra with a peak at 12 h. In addition, the balance of population among strongly, moderately, and weakly stained cells was different between the ischemic core and penumbra at their peak time points. These results suggest an important role of p-PTEN for cell survival after ischemia as an upstream regulator for PI3K-Akt.
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Affiliation(s)
- N Omori
- Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikata-cho, Okayama 700-8558, Japan
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