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Jang HI, Kim P, Kim YI. Damped Oscillating Phosphoryl Transfer Reaction in the Cyanobacterial Circadian Clock. ACS Omega 2023; 8:10784-10788. [PMID: 37008086 PMCID: PMC10061519 DOI: 10.1021/acsomega.2c06457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/02/2023] [Indexed: 06/19/2023]
Abstract
Most organisms have circadian clocks to ensure the metabolic cycle to resonate with the rhythmic environmental changes without "damping," or losing robustness. Cyanobacteria is the oldest and simplest form of life that is known to harbor this biological intricacy. Its KaiABC-based central oscillator proteins can be reconstituted inside a test tube, and the post-translational modification cycle occurs with 24 h periodicity. KaiC's two major phosphorylation sites, Ser-431 and Thr-432, become phosphorylated and dephosphorylated by interacting with KaiA and KaiB, respectively. Here, we mutate Thr-432 into Ser to find the oscillatory phosphoryl transfer reaction damps. Previously, this mutant KaiC was reported to be arrhythmic in vivo. However, we found that the mutant KaiC gradually loses the ability to run in an autonomous manner and stays constitutively phosphorylated after 3 cycles in vitro.
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Affiliation(s)
- Hye-In Jang
- School
of Cosmetic Science and Beauty Biotechnology, Semyung University, Jecheon 27136, Republic of Korea
| | - Pyonghwa Kim
- Department
of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Yong-Ick Kim
- Department
of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
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2
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Ai Y, Gunawardena HP, Li X, Kim YI, Dewald HD, Chen H. Standard-Free Absolute Quantitation of Antibody Deamidation Degradation and Host Cell Proteins by Coulometric Mass Spectrometry. Anal Chem 2022; 94:12490-12499. [PMID: 36018377 PMCID: PMC10492508 DOI: 10.1021/acs.analchem.2c02709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Proteomic absolute quantitation strategies mainly rely on the use of synthetic stable isotope-labeled peptides or proteins as internal standards, which are highly costly and time-consuming to synthesize. To circumvent this limitation, we recently developed a coulometric mass spectrometry (CMS) approach for absolute quantitation of proteins without the use of standards, based on the electrochemical oxidation of oxidizable surrogate peptides, followed by mass spectrometry measurement of the peptide oxidation yield. Previously, CMS was only applied for single-protein quantitation. In this study, first, we demonstrated absolute quantitation of multiple proteins in a mixture (e.g., β-lactoglobulin B, α-lactalbumin, and carbonic anhydrase) by CMS in one run, without using any standards. The CMS quantitation result was validated with a traditional isotope dilution method. Second, CMS can be used for absolute quantitation of a low-level target protein in a mixture; for instance, 500 ppm of PLBL2, a problematic host cell protein (HCP), in the presence of a highly abundant monoclonal antibody (mAb) was successfully quantified by CMS with no use of standards. Third, taking one step further, this study demonstrated the unprecedented quantitative analysis of deamidated peptide products arising from the mAb heavy chain deamidation reaction. In particular, absolute quantitation of the deamidation succinimide intermediate which had not been performed before due to the lack of standard was conducted by CMS, for the first time. Overall, our data suggest that CMS has potential utilities for quantitative proteomics and biotherapeutic drug discovery.
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Affiliation(s)
- Yongling Ai
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Harsha P Gunawardena
- Janssen Research & Development, The Janssen Pharmaceutical Companies of Johnson & Johnson, Spring House, Pennsylvania 19477, United States
| | - Xuanwen Li
- Analytical Research & Development, Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Yong-Ick Kim
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Howard D Dewald
- Department of Chemistry and Biochemistry, Ohio University, Chemistry Building, 133 University Terrace, Athens, Ohio 45701, United States
| | - Hao Chen
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
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3
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Kim P, Thati N, Peshori S, Jang HI, Kim YI. Shift in Conformational Equilibrium Underlies the Oscillatory Phosphoryl Transfer Reaction in the Circadian Clock. Life (Basel) 2021; 11:life11101058. [PMID: 34685430 PMCID: PMC8538168 DOI: 10.3390/life11101058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 11/26/2022] Open
Abstract
Oscillatory phosphorylation/dephosphorylation can be commonly found in a biological system as a means of signal transduction though its pivotal presence in the workings of circadian clocks has drawn significant interest: for example in a significant portion of the physiology of Synechococcus elongatus PCC 7942. The biological oscillatory reaction in the cyanobacterial circadian clock can be visualized through its reconstitution in a test tube by mixing three proteins—KaiA, KaiB and KaiC—with adenosine triphosphate and magnesium ions. Surprisingly, the oscillatory phosphorylation/dephosphorylation of the hexameric KaiC takes place spontaneously and almost indefinitely in a test tube as long as ATP is present. This autonomous post-translational modification is tightly regulated by the conformational change of the C-terminal peptide of KaiC called the “A-loop” between the exposed and the buried states, a process induced by the time-course binding events of KaiA and KaiB to KaiC. There are three putative hydrogen-bond forming residues of the A-loop that are important for stabilizing its buried conformation. Substituting the residues with alanine enabled us to observe KaiB’s role in dephosphorylating hyperphosphorylated KaiC, independent of KaiA’s effect. We found a novel role of KaiB that its binding to KaiC induces the A-loop toward its buried conformation, which in turn activates the autodephosphorylation of KaiC. In addition to its traditional role of sequestering KaiA, KaiB’s binding contributes to the robustness of cyclic KaiC phosphorylation by inhibiting it during the dephosphorylation phase, effectively shifting the equilibrium toward the correct phase of the clock.
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Affiliation(s)
- Pyonghwa Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA;
| | - Neha Thati
- Department of Biological Sciences, New Jersey Institute of Technology, Newark, NJ 07102, USA; (N.T.); (S.P.)
| | - Shreya Peshori
- Department of Biological Sciences, New Jersey Institute of Technology, Newark, NJ 07102, USA; (N.T.); (S.P.)
| | - Hye-In Jang
- School of Cosmetic Science and Beauty Biotechnology, Semyung University, Jecheon 27136, Korea
- Correspondence: (H.-I.J.); (Y.-I.K.)
| | - Yong-Ick Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA;
- Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, NJ 07102, USA
- Correspondence: (H.-I.J.); (Y.-I.K.)
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4
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Abi B, Albahri T, Al-Kilani S, Allspach D, Alonzi LP, Anastasi A, Anisenkov A, Azfar F, Badgley K, Baeßler S, Bailey I, Baranov VA, Barlas-Yucel E, Barrett T, Barzi E, Basti A, Bedeschi F, Behnke A, Berz M, Bhattacharya M, Binney HP, Bjorkquist R, Bloom P, Bono J, Bottalico E, Bowcock T, Boyden D, Cantatore G, Carey RM, Carroll J, Casey BCK, Cauz D, Ceravolo S, Chakraborty R, Chang SP, Chapelain A, Chappa S, Charity S, Chislett R, Choi J, Chu Z, Chupp TE, Convery ME, Conway A, Corradi G, Corrodi S, Cotrozzi L, Crnkovic JD, Dabagov S, De Lurgio PM, Debevec PT, Di Falco S, Di Meo P, Di Sciascio G, Di Stefano R, Drendel B, Driutti A, Duginov VN, Eads M, Eggert N, Epps A, Esquivel J, Farooq M, Fatemi R, Ferrari C, Fertl M, Fiedler A, Fienberg AT, Fioretti A, Flay D, Foster SB, Friedsam H, Frlež E, Froemming NS, Fry J, Fu C, Gabbanini C, Galati MD, Ganguly S, Garcia A, Gastler DE, George J, Gibbons LK, Gioiosa A, Giovanetti KL, Girotti P, Gohn W, Gorringe T, Grange J, Grant S, Gray F, Haciomeroglu S, Hahn D, Halewood-Leagas T, Hampai D, Han F, Hazen E, Hempstead J, Henry S, Herrod AT, Hertzog DW, Hesketh G, Hibbert A, Hodge Z, Holzbauer JL, Hong KW, Hong R, Iacovacci M, Incagli M, Johnstone C, Johnstone JA, Kammel P, Kargiantoulakis M, Karuza M, Kaspar J, Kawall D, Kelton L, Keshavarzi A, Kessler D, Khaw KS, Khechadoorian Z, Khomutov NV, Kiburg B, Kiburg M, Kim O, Kim SC, Kim YI, King B, Kinnaird N, Korostelev M, Kourbanis I, Kraegeloh E, Krylov VA, Kuchibhotla A, Kuchinskiy NA, Labe KR, LaBounty J, Lancaster M, Lee MJ, Lee S, Leo S, Li B, Li D, Li L, Logashenko I, Lorente Campos A, Lucà A, Lukicov G, Luo G, Lusiani A, Lyon AL, MacCoy B, Madrak R, Makino K, Marignetti F, Mastroianni S, Maxfield S, McEvoy M, Merritt W, Mikhailichenko AA, Miller JP, Miozzi S, Morgan JP, Morse WM, Mott J, Motuk E, Nath A, Newton D, Nguyen H, Oberling M, Osofsky R, Ostiguy JF, Park S, Pauletta G, Piacentino GM, Pilato RN, Pitts KT, Plaster B, Počanić D, Pohlman N, Polly CC, Popovic M, Price J, Quinn B, Raha N, Ramachandran S, Ramberg E, Rider NT, Ritchie JL, Roberts BL, Rubin DL, Santi L, Sathyan D, Schellman H, Schlesier C, Schreckenberger A, Semertzidis YK, Shatunov YM, Shemyakin D, Shenk M, Sim D, Smith MW, Smith A, Soha AK, Sorbara M, Stöckinger D, Stapleton J, Still D, Stoughton C, Stratakis D, Strohman C, Stuttard T, Swanson HE, Sweetmore G, Sweigart DA, Syphers MJ, Tarazona DA, Teubner T, Tewsley-Booth AE, Thomson K, Tishchenko V, Tran NH, Turner W, Valetov E, Vasilkova D, Venanzoni G, Volnykh VP, Walton T, Warren M, Weisskopf A, Welty-Rieger L, Whitley M, Winter P, Wolski A, Wormald M, Wu W, Yoshikawa C. Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm. Phys Rev Lett 2021; 126:141801. [PMID: 33891447 DOI: 10.1103/physrevlett.126.141801] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2. The anomaly is determined from the precision measurements of two angular frequencies. Intensity variation of high-energy positrons from muon decays directly encodes the difference frequency ω_{a} between the spin-precession and cyclotron frequencies for polarized muons in a magnetic storage ring. The storage ring magnetic field is measured using nuclear magnetic resonance probes calibrated in terms of the equivalent proton spin precession frequency ω[over ˜]_{p}^{'} in a spherical water sample at 34.7 °C. The ratio ω_{a}/ω[over ˜]_{p}^{'}, together with known fundamental constants, determines a_{μ}(FNAL)=116 592 040(54)×10^{-11} (0.46 ppm). The result is 3.3 standard deviations greater than the standard model prediction and is in excellent agreement with the previous Brookhaven National Laboratory (BNL) E821 measurement. After combination with previous measurements of both μ^{+} and μ^{-}, the new experimental average of a_{μ}(Exp)=116 592 061(41)×10^{-11} (0.35 ppm) increases the tension between experiment and theory to 4.2 standard deviations.
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Affiliation(s)
- B Abi
- University of Oxford, Oxford, United Kingdom
| | - T Albahri
- University of Liverpool, Liverpool, United Kingdom
| | - S Al-Kilani
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - D Allspach
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - L P Alonzi
- University of Washington, Seattle, Washington, USA
| | | | - A Anisenkov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - F Azfar
- University of Oxford, Oxford, United Kingdom
| | - K Badgley
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Baeßler
- University of Virginia, Charlottesville, Virginia, USA
| | - I Bailey
- Lancaster University, Lancaster, United Kingdom
| | - V A Baranov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - E Barlas-Yucel
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - T Barrett
- Cornell University, Ithaca, New York, USA
| | - E Barzi
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Basti
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | | | - A Behnke
- Northern Illinois University, DeKalb, Illinois, USA
| | - M Berz
- Michigan State University, East Lansing, Michigan, USA
| | | | - H P Binney
- University of Washington, Seattle, Washington, USA
| | | | - P Bloom
- North Central College, Naperville, Illinois, USA
| | - J Bono
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Bottalico
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - T Bowcock
- University of Liverpool, Liverpool, United Kingdom
| | - D Boyden
- Northern Illinois University, DeKalb, Illinois, USA
| | - G Cantatore
- INFN, Sezione di Trieste, Trieste, Italy
- Università di Trieste, Trieste, Italy
| | - R M Carey
- Boston University, Boston, Massachusetts, USA
| | - J Carroll
- University of Liverpool, Liverpool, United Kingdom
| | - B C K Casey
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Cauz
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - S Ceravolo
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | | | - S P Chang
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | | | - S Chappa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Charity
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - R Chislett
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - J Choi
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Z Chu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - T E Chupp
- University of Michigan, Ann Arbor, Michigan, USA
| | - M E Convery
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Conway
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - G Corradi
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - S Corrodi
- Argonne National Laboratory, Lemont, Illinois, USA
| | - L Cotrozzi
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - J D Crnkovic
- Brookhaven National Laboratory, Upton, New York, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- University of Mississippi, University, Mississippi, USA
| | - S Dabagov
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | | | - P T Debevec
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - P Di Meo
- INFN, Sezione di Napoli, Napoli, Italy
| | | | - R Di Stefano
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Cassino e del Lazio Meridionale, Cassino, Italy
| | - B Drendel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Driutti
- INFN, Sezione di Trieste, Trieste, Italy
- Università di Udine, Udine, Italy
- University of Kentucky, Lexington, Kentucky, USA
| | - V N Duginov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - M Eads
- Northern Illinois University, DeKalb, Illinois, USA
| | - N Eggert
- Cornell University, Ithaca, New York, USA
| | - A Epps
- Northern Illinois University, DeKalb, Illinois, USA
| | - J Esquivel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Farooq
- University of Michigan, Ann Arbor, Michigan, USA
| | - R Fatemi
- University of Kentucky, Lexington, Kentucky, USA
| | - C Ferrari
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - M Fertl
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
- University of Washington, Seattle, Washington, USA
| | - A Fiedler
- Northern Illinois University, DeKalb, Illinois, USA
| | - A T Fienberg
- University of Washington, Seattle, Washington, USA
| | - A Fioretti
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - D Flay
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - S B Foster
- Boston University, Boston, Massachusetts, USA
| | - H Friedsam
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Frlež
- University of Virginia, Charlottesville, Virginia, USA
| | - N S Froemming
- Northern Illinois University, DeKalb, Illinois, USA
- University of Washington, Seattle, Washington, USA
| | - J Fry
- University of Virginia, Charlottesville, Virginia, USA
| | - C Fu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - C Gabbanini
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - M D Galati
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - S Ganguly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - A Garcia
- University of Washington, Seattle, Washington, USA
| | - D E Gastler
- Boston University, Boston, Massachusetts, USA
| | - J George
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | | | - A Gioiosa
- INFN, Sezione di Pisa, Pisa, Italy
- Università del Molise, Campobasso, Italy
| | - K L Giovanetti
- Department of Physics and Astronomy, James Madison University, Harrisonburg, Virginia, USA
| | - P Girotti
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - W Gohn
- University of Kentucky, Lexington, Kentucky, USA
| | - T Gorringe
- University of Kentucky, Lexington, Kentucky, USA
| | - J Grange
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Michigan, Ann Arbor, Michigan, USA
| | - S Grant
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - F Gray
- Regis University, Denver, Colorado, USA
| | - S Haciomeroglu
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - D Hahn
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - D Hampai
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - F Han
- University of Kentucky, Lexington, Kentucky, USA
| | - E Hazen
- Boston University, Boston, Massachusetts, USA
| | - J Hempstead
- University of Washington, Seattle, Washington, USA
| | - S Henry
- University of Oxford, Oxford, United Kingdom
| | - A T Herrod
- University of Liverpool, Liverpool, United Kingdom
| | - D W Hertzog
- University of Washington, Seattle, Washington, USA
| | - G Hesketh
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Hibbert
- University of Liverpool, Liverpool, United Kingdom
| | - Z Hodge
- University of Washington, Seattle, Washington, USA
| | - J L Holzbauer
- University of Mississippi, University, Mississippi, USA
| | - K W Hong
- University of Virginia, Charlottesville, Virginia, USA
| | - R Hong
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Kentucky, Lexington, Kentucky, USA
| | - M Iacovacci
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Napoli, Napoli, Italy
| | | | - C Johnstone
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J A Johnstone
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - P Kammel
- University of Washington, Seattle, Washington, USA
| | | | - M Karuza
- INFN, Sezione di Trieste, Trieste, Italy
- University of Rijeka, Rijeka, Croatia
| | - J Kaspar
- University of Washington, Seattle, Washington, USA
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - L Kelton
- University of Kentucky, Lexington, Kentucky, USA
| | - A Keshavarzi
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - D Kessler
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - K S Khaw
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
- University of Washington, Seattle, Washington, USA
| | | | - N V Khomutov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - B Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- North Central College, Naperville, Illinois, USA
| | - O Kim
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - S C Kim
- Cornell University, Ithaca, New York, USA
| | - Y I Kim
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - B King
- University of Liverpool, Liverpool, United Kingdom
| | - N Kinnaird
- Boston University, Boston, Massachusetts, USA
| | | | - I Kourbanis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Kraegeloh
- University of Michigan, Ann Arbor, Michigan, USA
| | - V A Krylov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - A Kuchibhotla
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - K R Labe
- Cornell University, Ithaca, New York, USA
| | - J LaBounty
- University of Washington, Seattle, Washington, USA
| | - M Lancaster
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - M J Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - S Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - S Leo
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Li
- Argonne National Laboratory, Lemont, Illinois, USA
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - D Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - L Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - I Logashenko
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | | | - A Lucà
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - G Lukicov
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - G Luo
- Northern Illinois University, DeKalb, Illinois, USA
| | - A Lusiani
- INFN, Sezione di Pisa, Pisa, Italy
- Scuola Normale Superiore, Pisa, Italy
| | - A L Lyon
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - B MacCoy
- University of Washington, Seattle, Washington, USA
| | - R Madrak
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - K Makino
- Michigan State University, East Lansing, Michigan, USA
| | - F Marignetti
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Cassino e del Lazio Meridionale, Cassino, Italy
| | | | - S Maxfield
- University of Liverpool, Liverpool, United Kingdom
| | - M McEvoy
- Northern Illinois University, DeKalb, Illinois, USA
| | - W Merritt
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - J P Miller
- Boston University, Boston, Massachusetts, USA
| | - S Miozzi
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
| | - J P Morgan
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - W M Morse
- Brookhaven National Laboratory, Upton, New York, USA
| | - J Mott
- Boston University, Boston, Massachusetts, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Motuk
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Nath
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Napoli, Napoli, Italy
| | - D Newton
- University of Liverpool, Liverpool, United Kingdom
| | - H Nguyen
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Oberling
- Argonne National Laboratory, Lemont, Illinois, USA
| | - R Osofsky
- University of Washington, Seattle, Washington, USA
| | - J-F Ostiguy
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Park
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - G Pauletta
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - G M Piacentino
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
- Università del Molise, Campobasso, Italy
| | - R N Pilato
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - K T Pitts
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Plaster
- University of Kentucky, Lexington, Kentucky, USA
| | - D Počanić
- University of Virginia, Charlottesville, Virginia, USA
| | - N Pohlman
- Northern Illinois University, DeKalb, Illinois, USA
| | - C C Polly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Popovic
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J Price
- University of Liverpool, Liverpool, United Kingdom
| | - B Quinn
- University of Mississippi, University, Mississippi, USA
| | - N Raha
- INFN, Sezione di Pisa, Pisa, Italy
| | | | - E Ramberg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - N T Rider
- Cornell University, Ithaca, New York, USA
| | - J L Ritchie
- Department of Physics, University of Texas at Austin, Austin, Texas, USA
| | - B L Roberts
- Boston University, Boston, Massachusetts, USA
| | - D L Rubin
- Cornell University, Ithaca, New York, USA
| | - L Santi
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - D Sathyan
- Boston University, Boston, Massachusetts, USA
| | - H Schellman
- Northwestern University, Evanston, Illinois, USA
| | - C Schlesier
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - A Schreckenberger
- Boston University, Boston, Massachusetts, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Physics, University of Texas at Austin, Austin, Texas, USA
| | - Y K Semertzidis
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Y M Shatunov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - D Shemyakin
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - M Shenk
- Northern Illinois University, DeKalb, Illinois, USA
| | - D Sim
- University of Liverpool, Liverpool, United Kingdom
| | - M W Smith
- INFN, Sezione di Pisa, Pisa, Italy
- University of Washington, Seattle, Washington, USA
| | - A Smith
- University of Liverpool, Liverpool, United Kingdom
| | - A K Soha
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Sorbara
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
- Università di Roma Tor Vergata, Rome, Italy
| | - D Stöckinger
- Institut für Kern-und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - J Stapleton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Still
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Stoughton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Stratakis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Strohman
- Cornell University, Ithaca, New York, USA
| | - T Stuttard
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - H E Swanson
- University of Washington, Seattle, Washington, USA
| | - G Sweetmore
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | | | - M J Syphers
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- Northern Illinois University, DeKalb, Illinois, USA
| | - D A Tarazona
- Michigan State University, East Lansing, Michigan, USA
| | - T Teubner
- University of Liverpool, Liverpool, United Kingdom
| | | | - K Thomson
- University of Liverpool, Liverpool, United Kingdom
| | - V Tishchenko
- Brookhaven National Laboratory, Upton, New York, USA
| | - N H Tran
- Boston University, Boston, Massachusetts, USA
| | - W Turner
- University of Liverpool, Liverpool, United Kingdom
| | - E Valetov
- Lancaster University, Lancaster, United Kingdom
- Michigan State University, East Lansing, Michigan, USA
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - D Vasilkova
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | | | - V P Volnykh
- Joint Institute for Nuclear Research, Dubna, Russia
| | - T Walton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Warren
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Weisskopf
- Michigan State University, East Lansing, Michigan, USA
| | - L Welty-Rieger
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Whitley
- University of Liverpool, Liverpool, United Kingdom
| | - P Winter
- Argonne National Laboratory, Lemont, Illinois, USA
| | - A Wolski
- University of Liverpool, Liverpool, United Kingdom
| | - M Wormald
- University of Liverpool, Liverpool, United Kingdom
| | - W Wu
- University of Mississippi, University, Mississippi, USA
| | - C Yoshikawa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
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5
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Kim P, Kaur M, Jang HI, Kim YI. The Circadian Clock-A Molecular Tool for Survival in Cyanobacteria. Life (Basel) 2020; 10:life10120365. [PMID: 33419320 PMCID: PMC7766417 DOI: 10.3390/life10120365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 11/16/2022] Open
Abstract
Cyanobacteria are photosynthetic organisms that are known to be responsible for oxygenating Earth’s early atmosphere. Having evolved to ensure optimal survival in the periodic light/dark cycle on this planet, their genetic codes are packed with various tools, including a sophisticated biological timekeeping system. Among the cyanobacteria is Synechococcus elongatus PCC 7942, the simplest clock-harboring organism with a powerful genetic tool that enabled the identification of its intricate timekeeping mechanism. The three central oscillator proteins—KaiA, KaiB, and KaiC—drive the 24 h cyclic gene expression rhythm of cyanobacteria, and the “ticking” of the oscillator can be reconstituted inside a test tube just by mixing the three recombinant proteins with ATP and Mg2+. Along with its biochemical resilience, the post-translational rhythm of the oscillation can be reset through sensing oxidized quinone, a metabolite that becomes abundant at the onset of darkness. In addition, the output components pick up the information from the central oscillator, tuning the physiological and behavioral patterns and enabling the organism to better cope with the cyclic environmental conditions. In this review, we highlight our understanding of the cyanobacterial circadian clock and discuss how it functions as a molecular chronometer that readies the host for predictable changes in its surroundings.
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Affiliation(s)
- Pyonghwa Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA; (P.K.); (M.K.)
| | - Manpreet Kaur
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA; (P.K.); (M.K.)
| | - Hye-In Jang
- School of Cosmetic Science and Beauty Biotechnology, Semyung University, Jecheon 27136, Korea
- Correspondence: (H.-I.J.); (Y.-I.K.)
| | - Yong-Ick Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA; (P.K.); (M.K.)
- Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, NJ 07102, USA
- Correspondence: (H.-I.J.); (Y.-I.K.)
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6
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Zhao P, Wang Q, Kaur M, Kim YI, Dewald HD, Mozziconacci O, Liu Y, Chen H. Absolute Quantitation of Proteins by Coulometric Mass Spectrometry. Anal Chem 2020; 92:7877-7883. [DOI: 10.1021/acs.analchem.0c01151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pengyi Zhao
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States,
| | - Qi Wang
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States,
| | - Manpreet Kaur
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States,
| | - Yong-Ick Kim
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States,
| | - Howard D. Dewald
- Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, United States
| | - Olivier Mozziconacci
- Department of Analytical Sciences, Merck Research Laboratories, Merck &Co., Inc., Rahway, New Jersey 07065, United States
| | - Yong Liu
- Department of Analytical Sciences, Merck Research Laboratories, Merck &Co., Inc., Rahway, New Jersey 07065, United States
| | - Hao Chen
- Department of Chemistry & Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States,
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7
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Kim P, Porr B, Mori T, Kim YS, Johnson CH, Diekman CO, Kim YI. CikA, an Input Pathway Component, Senses the Oxidized Quinone Signal to Generate Phase Delays in the Cyanobacterial Circadian Clock. J Biol Rhythms 2020; 35:227-234. [PMID: 31983264 DOI: 10.1177/0748730419900868] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The circadian clock is a timekeeping system in most organisms that keeps track of the time of day. The rhythm generated by the circadian oscillator must be constantly synchronized with the environmental day/night cycle to make the timekeeping system truly advantageous. In the cyanobacterial circadian clock, quinone is a biological signaling molecule used for entraining and fine-tuning the oscillator, a process in which the external signals are transduced into biological metabolites that adjust the phase of the circadian oscillation. Among the clock proteins, the pseudo-receiver domain of KaiA and CikA can sense external cues by detecting the oxidation state of quinone, a metabolite that reflects the light/dark cycle, although the molecular mechanism is not fully understood. Here, we show the antagonistic phase shifts produced by the quinone sensing of KaiA and CikA. We introduced a new cyanobacterial circadian clock mixture that includes an input component in vitro. KaiA and CikA cause phase advances and delays, respectively, in this circadian clock mixture in response to the quinone signal. In the entrainment process, oxidized quinone modulates the functions of KaiA and CikA, which dominate alternatively at day and night in the cell. This in turn changes the phosphorylation state of KaiC-the central oscillator in cyanobacteria-ensuring full synchronization of the circadian clock. Moreover, we reemphasize the mechanistic input functionality of CikA, contrary to other reports that focus only on its output action.
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Affiliation(s)
- Pyonghwa Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey
| | - Brianna Porr
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey
| | - Tetsuya Mori
- Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee
| | - Yong-Sung Kim
- Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York
| | - Carl H Johnson
- Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee
| | - Casey O Diekman
- Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, New Jersey.,Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, New Jersey
| | - Yong-Ick Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey.,Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, New Jersey
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8
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Kim YI, Song KB, Lee YJ, Park KM, Hwang DW, Lee JH, Shin SH, Kwon JW, Ro JS, Kim SC. Management of isolated recurrence after surgery for pancreatic adenocarcinoma. Br J Surg 2019; 106:898-909. [PMID: 31162655 DOI: 10.1002/bjs.11144] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/10/2018] [Accepted: 01/25/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND Recurrence of pancreatic cancer after primary pancreatectomy occurs in the vast majority of patients. The role of surgical treatment for recurrent pancreatic cancer is not well established. METHODS Patients who underwent primary pancreatectomy with curative intent from 2000 to 2014 at a single large-volume centre were evaluated retrospectively. CT or PET was used to select patients with an isolated recurrence. The clinicopathological features and survival outcomes were compared according to treatment modalities. RESULTS Of the 1610 patients with pancreatic cancer who underwent resection, 1346 (83·6 per cent) were diagnosed with recurrent pancreatic cancer. Recurrence was locoregional in 366 patients (27·2 per cent), distant multifocal in 251 (18·6 per cent), distant isolated in 188 (14·0 per cent), locoregional plus distant in 153 (11·4 per cent) and peritoneal seeding in 388 (28·8 per cent). Of the 1346 patients with recurrence, 197 (14·6 per cent) had isolated recurrence; of these, 48 (24·4 per cent of all isolated recurrences; 3·6 per cent of all recurrences) underwent resection. Median survival of the 197 patients after diagnosis of isolated recurrence was 14·7 months; it was longer in patients who underwent surgical resection than among those treated non-surgically (23·5 versus 12·0 months; P = 0·014). Multivariable analysis showed that chemotherapy and resection for recurrence were associated with better prognosis. Median survival after recurrence was longest in the 23 patients with isolated pulmonary recurrence (33·3 months). Survival after recurrence was better in patients who underwent resection of isolated recurrence in the remnant pancreas (median 28·0 versus 12·0 months, P = 0·010) and lung (median 36·5 versus 9·5 months; P = 0·010) than in those who did not undergo resection. CONCLUSION Surgical resection may be considered an option for treatment of patients with isolated recurrent pancreatic cancer.
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Affiliation(s)
- Y I Kim
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - K B Song
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - Y-J Lee
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - K-M Park
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - D W Hwang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - J H Lee
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - S H Shin
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - J W Kwon
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
| | - J-S Ro
- Clinical Preventive Medicine Centre, Seoul National University Bundang Hospital, Bundang-gu, South Korea
| | - S C Kim
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, South Korea
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Park EH, Moon SW, Suh HR, Hochman S, Lee MG, Kim YI, Jang IT, Han HC. Disc degeneration induces a mechano-sensitization of disc afferent nerve fibers that associates with low back pain. Osteoarthritis Cartilage 2019; 27:1608-1617. [PMID: 31326554 DOI: 10.1016/j.joca.2019.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 06/13/2019] [Accepted: 07/01/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE We aimed to investigate mechano-sensitivity at the afferent nerve fibers projecting to degenerated intervertebral disc (IVD) and nociceptive behaviour in a rat model of low back pain (LBP). DESIGN Animal model with LBP was established by lumbar 4/5 IVD puncture and nucleus pulposus aspiration. In vivo single nerve recordings (n = 121) were introduced to measure discharge frequency at the afferent nerve fiber innervating the IVD during mechanical stimulations (von Frey filament or intradiscal pressure). Nerve growth factor (NGF) expression levels in the IVD (n = 20) were assessed by Western blot. LBP-related behaviour (n = 22) was assessed by measuring changes in rearing, mechanical paw-withdrawal threshold, and dynamic weight bearing in a freely walking rat. Inhibitory effect of morphine on the neuronal excitability (n = 19) and painful behaviour (n = 28) was also assessed. RESULTS Compared to those with sham or naïve IVD, animal group with degenerated IVD displayed the sensitized neuronal responses and painful behaviour, with hyperexcitability of the afferent nerve fibers in any range of mechanical stimulations (von Frey filament stimulation; 1, 2, and 26 g; intradiscal pressure, 1,500-3,000 mm Hg), strong upregulation of NGF (200-250 % increase), and LBP-like behaviour such as failure of rearing, front limbs-dependent walking pattern, and hypersensitivity in hind-paws. However, the neuronal hyperexcitability and pain behaviour were attenuated after local (30 μM) or systemic (3 mg kg-1) morphine administration. CONCLUSIONS Our study suggests that enhanced mechano-sensitivity at the afferent nerve fiber innervating degenerated IVD is deeply correlated with LBP development, which supports the hypothesis that hyperexcited responses at the nerve fibers represent a decisive source of LBP.
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Affiliation(s)
- E H Park
- Department of Physiology, College of Medicine and Neuroscience Research Institute, Korea University, Seoul, South Korea
| | - S W Moon
- Department of Physiology, College of Medicine and Neuroscience Research Institute, Korea University, Seoul, South Korea
| | - H R Suh
- Department of Physiology, College of Medicine and Neuroscience Research Institute, Korea University, Seoul, South Korea
| | - S Hochman
- Department of Physiology, School of Medicine, Emory University, Atlanta, GA, United States
| | - M-G Lee
- Department of Physiology, College of Medicine and Neuroscience Research Institute, Korea University, Seoul, South Korea
| | - Y I Kim
- Department of Physiology, College of Medicine and Neuroscience Research Institute, Korea University, Seoul, South Korea
| | - I T Jang
- Nanoori Hospital, Seoul, South Korea
| | - H C Han
- Department of Physiology, College of Medicine and Neuroscience Research Institute, Korea University, Seoul, South Korea.
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10
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Jeong YM, Dias C, Diekman C, Brochon H, Kim P, Kaur M, Kim YS, Jang HI, Kim YI. Magnesium Regulates the Circadian Oscillator in Cyanobacteria. J Biol Rhythms 2019; 34:380-390. [PMID: 31216910 DOI: 10.1177/0748730419851655] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The circadian clock controls 24-h biological rhythms in our body, influencing many time-related activities such as sleep and wake. The simplest circadian clock is found in cyanobacteria, with the proteins KaiA, KaiB, and KaiC generating a self-sustained circadian oscillation of KaiC phosphorylation and dephosphorylation. KaiA activates KaiC phosphorylation by binding the A-loop of KaiC, while KaiB attenuates the phosphorylation by sequestering KaiA from the A-loop. Structural analysis revealed that magnesium regulates the phosphorylation and dephosphorylation of KaiC by dissociating from and associating with catalytic Glu residues that activate phosphorylation and dephosphorylation, respectively. High magnesium causes KaiC to dephosphorylate, whereas low magnesium causes KaiC to phosphorylate. KaiC alone behaves as an hourglass timekeeper when the magnesium concentration is alternated between low and high levels in vitro. We suggest that a magnesium-based hourglass timekeeping system may have been used by ancient cyanobacteria before magnesium homeostasis was established.
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Affiliation(s)
- Young M Jeong
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Cristiano Dias
- Department of Physics, New Jersey Institute of Technology, Newark, NJ, USA
| | - Casey Diekman
- Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, NJ, USA.,Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, NJ, USA
| | - Helene Brochon
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Pyonghwa Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Manpreet Kaur
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Yong-Sung Kim
- Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Hye-In Jang
- School of Cosmetic Science and Beauty Biotechnology, Semyung University, Jecheon, Republic of Korea
| | - Yong-Ick Kim
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, USA.,Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, NJ, USA
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11
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Kaur M, Ng A, Kim P, Diekman C, Kim YI. CikA Modulates the Effect of KaiA on the Period of the Circadian Oscillation in KaiC Phosphorylation. J Biol Rhythms 2019; 34:218-223. [DOI: 10.1177/0748730419828068] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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
Cyanobacteria contain a circadian oscillator that can be reconstituted in vitro. In the reconstituted circadian oscillator, the phosphorylation state of KaiC oscillates with a circadian period, spending about 12 h in the phosphorylation phase and another 12 h in the dephosphorylation phase. Although some entrainment studies have been performed using the reconstituted oscillator, they were insufficient to fully explain entrainment mechanisms of the cyanobacterial circadian clock due to the lack of input pathway components in the in vitro oscillator reaction mixture. Here, we investigate how an input pathway component, CikA, affects the phosphorylation state of KaiC in vitro. In general, CikA affects the amplitude and period of the circadian oscillation of KaiC phosphorylation by competing with KaiA for the same binding site on KaiB. In the presence of CikA, KaiC switches from its dephosphorylation phase to its phosphorylation phase prematurely, due to an early release of KaiA from KaiB as a result of competitive binding between CikA and KaiA. This causes hyperphosphorylation of KaiC and lowers the amplitude of the circadian oscillation. The period of the KaiC phosphorylation oscillation is shortened by adding increased amounts of CikA. A constant period can be maintained as CikA is increased by proportionally decreasing the amount of KaiA. Our findings give insight into how to reconstitute the cyanobacterial circadian clock in vitro by the addition of an input pathway component, and explain how this affects circadian oscillations by directly interacting with the oscillator components.
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Affiliation(s)
| | - Amy Ng
- Department of Biological Sciences
| | - Pyonghwa Kim
- Department of Chemistry and Environmental Science
| | - Casey Diekman
- Department of Mathematical Sciences
- Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, NJ
| | - Yong-Ick Kim
- Department of Chemistry and Environmental Science
- Institute for Brain and Neuroscience Research, New Jersey Institute of Technology, Newark, NJ
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12
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Inoue M, Shirotani Y, Nagao S, Aramaki T, Kim YI, Hayakawa K. Spatial variations of 226Ra, 228Ra, 134Cs, and 137Cs concentrations in western and southern waters off the Korean Peninsula in July 2014. J Environ Radioact 2018; 182:151-156. [PMID: 29227877 DOI: 10.1016/j.jenvrad.2017.11.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 11/01/2017] [Accepted: 11/21/2017] [Indexed: 06/07/2023]
Abstract
We examined the spatial distributions of 226Ra, 228Ra, 134Cs, and 137Cs concentrations (activities) in seawater off the western and southern Korean Peninsula in July 2014. Radium-228 (and 226Ra) concentrations in water samples varied widely from 5 to 14 mBq/L (2-4 mBq/L), showing a negative correlation with salinity, particularly at the surface off the western Korean Peninsula. This indicates that the seawaters in this area are fundamentally comprised of 228Ra-poor and high-saline Kuroshio Current water and 228Ra-rich and low-saline water (e.g., continental shelf water), with various mixing ratios. Although Fukushima Dai-ichi Nuclear Power Plant (FDNPP)-derived 134Cs was below the detection limit (<0.08 mBq/L) in waters off the western Korean Peninsula, low level 134Cs (0.1-0.2 mBq/L) was detected in waters off the southern Korean Peninsula accompanied by higher 137Cs concentrations (1.6-1.9 mBq/L) relative to that off the western Korean Peninsula. Combined with the lower radium concentrations, the detection of 134Cs is explained by mixing of FDNPP-derived radiocesium-contaminated Kuroshio Current water.
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Affiliation(s)
- M Inoue
- Institute of Nature and Environmental Technology, Kanazawa University, Nomi, Ishikawa 923-1224, Japan.
| | - Y Shirotani
- Institute of Nature and Environmental Technology, Kanazawa University, Nomi, Ishikawa 923-1224, Japan
| | - S Nagao
- Institute of Nature and Environmental Technology, Kanazawa University, Nomi, Ishikawa 923-1224, Japan
| | - T Aramaki
- National Institute for Environmental Studies, Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Y I Kim
- East Sea Research Institute, KIOST, Uljin 36315, South Korea
| | - K Hayakawa
- Institute of Nature and Environmental Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
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13
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Lee YH, Kim YI, Oh YK, Ahmadi F, Kwak WS. Yield survey and nutritional evaluation of garlic stalk for ruminant feed. J Anim Sci Technol 2017; 59:22. [PMID: 29085659 PMCID: PMC5651561 DOI: 10.1186/s40781-017-0147-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/13/2017] [Indexed: 12/05/2022]
Abstract
Background Very limited information exists on the ruminal degradation kinetics of nutrients in garlic stalk. The present study aimed to survey the annual yield of garlic stalk in Korea and determine its feed-nutritive value for ruminants. Methods In Experiment 1, garlic stalk was incubated in situ in the rumen of two Hanwoo steers (360 ± 15 kg body weight) and removed after 12, 24, or 48 h to determine the ruminal degradation kinetics of DM and NDF. Rice straw was also included for comparison. In Experiment 2, In Experiment 2, six male Corriedale sheep were randomized to two dietary treatments to determine the apparent digestibility of nutrients in garlic stalk. Diets included a control ration without garlic stalk (60% concentrate mix +40% ryegrass) or a treatment ration (70% control diet +30% garlic stalk). Results The Korean national yield of garlic stalk (sun-dried basis) in 2016 was estimated to be 31,910 tons, with the southern coastal regions producing the highest quantity. Compared with rice straw, garlic stalk had lower NDF, higher ADF, and greater effective degradabilities of DM and NDF, resulting in a greater TDN value (56.3%), which was higher than that obtained for rice straw (43.7%). Conclusion These results provide basic information on the ruminal DM and NDF degradation kinetics of garlic stalk, which would be helpful for the efficient utilization of this by-product in ruminant diets.
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Affiliation(s)
- Y H Lee
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea
| | - Y I Kim
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea
| | - Y K Oh
- Animal Nutrition & Physiology Team, National Institute of Animal Science, Rural Development Administration, Wanju county, 565-851 Jeon-Buk province Republic of Korea
| | - F Ahmadi
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea
| | - W S Kwak
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea
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Kim HJ, Kim YI, Min KS. A combined approach with passive and active repositioning of a traumatically intruded immature permanent incisor. Eur J Paediatr Dent 2017; 18:27-31. [PMID: 28494599 DOI: 10.23804/ejpd.2017.18.01.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Severe damage to the tooth, periodontal ligament, and pulpal tissue often occurs with intrusive luxation, and outcomes are quite unpredictable because of the variable ways in which the injury may occur, which influences both the choice of treatment and prognosis. CASE REPORT This case presents a novel method for the management of an intruded permanent maxillary central incisor with an immature apex. At first, watchful waiting for spontaneous re-eruption was the chosen treatment option. A palatal gingivectomy was performed and endodontic access was established, following which, an intracanal medicament of calcium hydroxide was applied. A root canal treatment was completed, and apexification with mineral trioxide aggregate was performed. Re-eruption failed to reach completion, so complete repositioning was performed with the aid of orthodontics for two months. CONCLUSION The present case illustrates the partial re-eruption of a severely intruded immature permanent tooth with the use of interim medication in the root canal. This case also shows complete re-eruption with the aid of timely orthodontic repositioning after apexification.
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Affiliation(s)
- H J Kim
- Department of Conservative Dentistry, Pusan National University Hospital, Busan, Korea Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Korea
| | - Y I Kim
- Department of Orthodontics, School of Dentistry, Pusan National University Hospital, Busan, Korea
| | - K S Min
- Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience - Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
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15
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Park MS, Joo SH, Kim BS, Lee JW, Kim YI, Hong MK, Ahn HJ. Remote Preconditioning on Rat Hepatic Ischemia-Reperfusion Injury Downregulated Bax and Cleaved Caspase-3 Expression. Transplant Proc 2016; 48:1247-50. [PMID: 27320597 DOI: 10.1016/j.transproceed.2015.12.125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 11/26/2015] [Accepted: 12/30/2015] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Hepatic ischemia-reperfusion injury (IRI) is considered a major cause of hepatic damage in liver surgery. The aim of this study was to investigate the effect of the remote ischemic perconditioning method on hepatic IRI in a rat model. METHODS Seventeen rats underwent hepatic IRI for 30 minutes followed by reperfusion, and were divided into 3 groups: group I, only hepatic IRI (n = 5); group II, hepatic IRI with remote perconditioning (n = 7); and group III, hepatic IRI with remote postconditioning (n = 5). RESULTS For Bax/β-actin, mean values of the 3 groups (±standard deviation) were 1.29 ± 0.26 (group I), 0.89 ± 0.15 (group II), and 1.02 ± 0.23 (group III). The level of Bax/β-actin in group II was significantly lower than in group I (P < .01). The cleaved Caspase-3/β-actin ratio for groups I, II, and III was 0.93 ± 0.22, 0.46 ± 0.16, and 0.63 ± 0.22, respectively. The level of cleaved Caspase-3/β-actin in groups II and III were significantly lower than in group I (P < .01 and P < .05, respectively). The Bcl-2/β-actin ratio for groups I, II, and III was 1.01 ± 0.09, 1.19 ± 0.39, and 1.20 ± 0.12, respectively. However, there were no significant difference between groups II and III and group I. CONCLUSIONS The remote perconditioning on rat hepatic IRI downregulated the Bax and cleaved Caspase-3 expression.
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Affiliation(s)
- M-S Park
- Department of Surgery, School of Medicine, Kyung Hee University Medical Center
| | - S H Joo
- Department of Surgery, School of Medicine, Kyung Hee University Medical Center
| | - B S Kim
- Department of Surgery, School of Medicine, Kyung Hee University Medical Center
| | - J W Lee
- Medical Science Research Institute, Kyung Hee University Medical Center
| | - Y I Kim
- Medical Science Research Institute, Kyung Hee University Medical Center
| | - M K Hong
- Department of Surgery, School of Medicine, Kyung Hee University Medical Center
| | - H J Ahn
- Department of Surgery, School of Medicine, Kyung Hee University Medical Center.
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16
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Ahn JI, Yoo JY, Kim TH, Kim YI, Ferguson SD, Fazleabas AT, Young SL, Lessey BA, Ahn JY, Lim JM, Jeong JW. cAMP-Response Element-Binding 3-Like Protein 1 (CREB3L1) is Required for Decidualization and its Expression is Decreased in Women with Endometriosis. Curr Mol Med 2016; 16:276-87. [PMID: 26917262 DOI: 10.2174/1566524016666160225153659] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 02/10/2016] [Accepted: 02/19/2016] [Indexed: 11/22/2022]
Abstract
Endometriosis is a major cause of infertility and pelvic pain, affecting more than 10% of reproductive-aged women. Progesterone resistance has been observed in the endometrium of women with this disease, as evidenced by alterations in progesterone-responsive gene and protein expression. cAMPResponse Element-Binding 3-like protein 1 (Creb3l1) has previously been identified as a progesterone receptor (PR) target gene in mouse uterus via high density DNA microarray analysis. However, CREB3L1 function has not been studied in the context of endometriosis and uterine biology. In this study, we validated progesterone (P4) regulation of Creb3l1 in the uteri of wild-type and progesterone receptor knockout (PRKO) mice. Furthermore, we observed that CREB3L1 expression was significantly higher in secretory phase human endometrium compared to proliferative phase and that CREB3L1 expression was significantly decreased in the endometrium of women with endometriosis. Lastly, by transfecting CREB3L1 siRNA into cultured human endometrial stromal cells (hESCs) prior to hormonal induction of in vitro decidualization, we showed that CREB3L1 is required for the decidualization process. Interestingly, phosphorylation of ERK1/2, critical factor for decidualization, was also significantly reduced in CREB3L1-silenced hESCs. It is known that hESCs from patients with endometriosis show impaired decidualization and that dysregulation of the P4-PR signaling axis is linked to a variety of endometrial diseases including infertility and endometriosis. Therefore, these results suggest that CREB3L1 is required for decidualization in mice and humans and may be linked to the pathogenesis of endometriosis in a P4-dependent manner.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - J M Lim
- Laboratory of Stem Cell and Bioevaluation, Major in Biomodulation, Seoul National University, Seoul 151-921, Republic of Korea.
| | - J-W Jeong
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, College of Human Medicine, 333 Bostwick Avenue NE, Suite 4024, Grand Rapids, MI 49503, USA.
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17
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Anastassopoulos V, Andrianov S, Baartman R, Baessler S, Bai M, Benante J, Berz M, Blaskiewicz M, Bowcock T, Brown K, Casey B, Conte M, Crnkovic JD, D'Imperio N, Fanourakis G, Fedotov A, Fierlinger P, Fischer W, Gaisser MO, Giomataris Y, Grosse-Perdekamp M, Guidoboni G, Hacıömeroğlu S, Hoffstaetter G, Huang H, Incagli M, Ivanov A, Kawall D, Kim YI, King B, Koop IA, Lazarus DM, Lebedev V, Lee MJ, Lee S, Lee YH, Lehrach A, Lenisa P, Levi Sandri P, Luccio AU, Lyapin A, MacKay W, Maier R, Makino K, Malitsky N, Marciano WJ, Meng W, Meot F, Metodiev EM, Miceli L, Moricciani D, Morse WM, Nagaitsev S, Nayak SK, Orlov YF, Ozben CS, Park ST, Pesce A, Petrakou E, Pile P, Podobedov B, Polychronakos V, Pretz J, Ptitsyn V, Ramberg E, Raparia D, Rathmann F, Rescia S, Roser T, Kamal Sayed H, Semertzidis YK, Senichev Y, Sidorin A, Silenko A, Simos N, Stahl A, Stephenson EJ, Ströher H, Syphers MJ, Talman J, Talman RM, Tishchenko V, Touramanis C, Tsoupas N, Venanzoni G, Vetter K, Vlassis S, Won E, Zavattini G, Zelenski A, Zioutas K. A storage ring experiment to detect a proton electric dipole moment. Rev Sci Instrum 2016; 87:115116. [PMID: 27910557 DOI: 10.1063/1.4967465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
A new experiment is described to detect a permanent electric dipole moment of the proton with a sensitivity of 10-29 e ⋅ cm by using polarized "magic" momentum 0.7 GeV/c protons in an all-electric storage ring. Systematic errors relevant to the experiment are discussed and techniques to address them are presented. The measurement is sensitive to new physics beyond the standard model at the scale of 3000 TeV.
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Affiliation(s)
- V Anastassopoulos
- Department of Physics, University of Patras, 26500 Rio-Patras, Greece
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, Saint-Petersburg State University, Saint-Petersburg, Russia
| | - R Baartman
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - S Baessler
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Bai
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Benante
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - M Blaskiewicz
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - T Bowcock
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - K Brown
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - B Casey
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Conte
- Physics Department and INFN Section of Genoa, 16146 Genoa, Italy
| | - J D Crnkovic
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - N D'Imperio
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G Fanourakis
- Institute of Nuclear and Particle Physics NCSR Demokritos, GR-15310 Aghia Paraskevi Athens, Greece
| | - A Fedotov
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - P Fierlinger
- Technical University München, Physikdepartment and Excellence-Cluster "Universe," Garching, Germany
| | - W Fischer
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M O Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Y Giomataris
- CEA/Saclay, DAPNIA, 91191 Gif-sur-Yvette Cedex, France
| | - M Grosse-Perdekamp
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - G Guidoboni
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - S Hacıömeroğlu
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - G Hoffstaetter
- Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, New York 14853, USA
| | - H Huang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M Incagli
- Physics Department, University and INFN Pisa, Pisa, Italy
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, Saint-Petersburg State University, Saint-Petersburg, Russia
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Y I Kim
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - B King
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - I A Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - D M Lazarus
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - V Lebedev
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M J Lee
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - S Lee
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Y H Lee
- Korea Research Institute of Standards and Science, Daejeon 34141, South Korea
| | - A Lehrach
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Lenisa
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - P Levi Sandri
- Laboratori Nazionali di Frascati, INFN, I-00044 Frascati, Rome, Italy
| | - A U Luccio
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Lyapin
- Royal Holloway, University of London, Egham, Surrey, United Kingdom
| | - W MacKay
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - R Maier
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - N Malitsky
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - W J Marciano
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - W Meng
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Meot
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E M Metodiev
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - L Miceli
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - D Moricciani
- Dipartimento di Fisica dell'Univ. di Roma "Tor Vergata" and INFN Sezione di Roma Tor Vergata, Rome, Italy
| | - W M Morse
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - S Nagaitsev
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S K Nayak
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y F Orlov
- Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, New York 14853, USA
| | - C S Ozben
- Istanbul Technical University, Istanbul 34469, Turkey
| | - S T Park
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - A Pesce
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - E Petrakou
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - P Pile
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - B Podobedov
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | | | - J Pretz
- RWTH Aachen University and JARA-Fame, III. Physikalisches Institut B, Physikzentrum, 52056 Aachen, Germany
| | - V Ptitsyn
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E Ramberg
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Raparia
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Rathmann
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Rescia
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - T Roser
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - H Kamal Sayed
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y K Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Y Senichev
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Sidorin
- Joint Institute for Nuclear Research, Dubna, Moscow region, Russia
| | - A Silenko
- Joint Institute for Nuclear Research, Dubna, Moscow region, Russia
| | - N Simos
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Stahl
- RWTH Aachen University and JARA-Fame, III. Physikalisches Institut B, Physikzentrum, 52056 Aachen, Germany
| | - E J Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - H Ströher
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M J Syphers
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Talman
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - R M Talman
- Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, New York 14853, USA
| | - V Tishchenko
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Touramanis
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - N Tsoupas
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G Venanzoni
- Laboratori Nazionali di Frascati, INFN, I-00044 Frascati, Rome, Italy
| | - K Vetter
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - S Vlassis
- Department of Physics, University of Patras, 26500 Rio-Patras, Greece
| | - E Won
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - G Zavattini
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - A Zelenski
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - K Zioutas
- Department of Physics, University of Patras, 26500 Rio-Patras, Greece
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Kim JS, Lee YH, Kim YI, Ahmadi F, Oh YK, Park JM, Kwak WS. Effect of microbial inoculant or molasses on fermentative quality and aerobic stability of sawdust-based spent mushroom substrate. Bioresour Technol 2016; 216:188-195. [PMID: 27240234 DOI: 10.1016/j.biortech.2016.05.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/13/2016] [Accepted: 05/14/2016] [Indexed: 06/05/2023]
Abstract
In the first experiment, the effect of two novel Lactobacillus plantarum strains was studied on the fermentation of spent mushroom substrate (SMS) through 10d of ensiling. Based on lactic acid production and lactic acid bacteria population, L. plantarum KU5 was identified as the best strain for fermentation with a 5-L bag silo. Spent mushroom substrate was ensiled with 0.5% (v/w) L. plantarum KU5 without or with 5% molasses. Silages treated with microbial inoculant and molasses had the lowest pH and the highest fermentative odors. In a second set of experiments similar to the above 5-L silo study, the simultaneous application of L. plantarum KU5 inoculant and molasses to 80-L silos improved fermentability and aerobic stability of SMS silages. For similar treatment using ton-bag silos, aerobic stability decreased and NH3-N content increased dramatically. In conclusion, sawdust-based SMS for animal use was successfully ensiled with L. plantarum KU5 inoculant and molasses.
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Affiliation(s)
- J S Kim
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea
| | - Y H Lee
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea
| | - Y I Kim
- Egreen Co. LTD, Icheon, Gyeong-Gi, Republic of Korea
| | - F Ahmadi
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea
| | - Y K Oh
- National Institute of Animal Science, RDA, Jeonju, Jeon-Buk, Republic of Korea
| | - J M Park
- Egreen Co. LTD, Icheon, Gyeong-Gi, Republic of Korea
| | - W S Kwak
- Division of Food Bio-science, College of Medical Life Sciences, Konkuk University, Chungju, Chung-Buk, Republic of Korea.
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Park JH, Kim JE, Gu JY, Yoo HJ, Park SH, Kim YI, Nam-Goong IS, Kim ES, Kim HK. Evaluation of Circulating Markers of Neutrophil Extracellular Trap (NET) Formation as Risk Factors for Diabetic Retinopathy in a Case-Control Association Study. Exp Clin Endocrinol Diabetes 2016; 124:557-561. [PMID: 27420129 DOI: 10.1055/s-0042-101792] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Background: Inflammatory stimuli can induce neutrophils to release nuclear DNA combined with histones into the extracellular space, forming neutrophil extracellular traps. Because inflammation contributes to diabetic retinopathy, it is plausible that neutrophil extracellular trap formation actively occurs in diabetic retinopathy. This case-control study investigated the clinical relevance of circulating levels of neutrophil extracellular trap components as risk factors of diabetic retinopathy, and further evaluated whether glucose induced neutrophil extracellular trap formation in vitro using whole blood from healthy volunteers. Methods: Circulating levels of DNA-histone complexes, cell free double-stranded DNA, and polymorphonuclear neutrophil elastase, considered to be markers of neutrophil extracellular trap formation, were measured in patients with diabetic retinopathy (n=28) and without (n=62) and in 28 healthy controls. Results: Circulating DNA-histone complex and polymorphonuclear neutrophil elastase levels were significantly increased in patients with diabetic retinopathy compared with those without retinopathy. Multivariable logistic regression analysis, adjusted for glycated hemoglobin levels and fasting blood glucose, revealed that DNA-histone complex and polymorphonuclear neutrophil elastase levels were significant independent risk factors of retinopathy. In vitro experiments also showed that glucose significantly increased markers of neutrophil extracellular trap formation in a dose-dependent manner. Conclusions: Markers of neutrophil extracellular trap formation were independent risk factors of diabetic retinopathy. This finding provides a new insight into the potential therapeutic and preventive approaches to dampen neutrophil extracellular trap formation.
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Affiliation(s)
- J-H Park
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J-E Kim
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J-Y Gu
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - H J Yoo
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - S H Park
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Y I Kim
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - I S Nam-Goong
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - E S Kim
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - H K Kim
- Department of Laboratory Medicine and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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20
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Seok JS, Kim YI, Lee YH, Choi DY, Kwak WS. Effect of feeding a by-product feed-based silage on nutrients intake, apparent digestibility, and nitrogen balance in sheep. J Anim Sci Technol 2016; 58:9. [PMID: 26855787 PMCID: PMC4743130 DOI: 10.1186/s40781-016-0091-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 01/25/2016] [Indexed: 11/10/2022]
Abstract
BACKGROUND Literature is lacking on the effects of feeding by-product feed (BF)-based silage on rumen fermentation parameters, nutrient digestion and nitrogen (N) retention in sheep. Therefore, this study was conducted to determine the effect of replacing rye straw with BF-based silage as a roughage source on ruminal parameters, total-tract apparent nutrient digestibility, and N balance in sheep. METHODS The by-product feed silage was composed of spent mushroom substrate (SMS) (45 %), recycled poultry bedding (RPB) (21 %), rye straw (11 %), rice bran (10.8 %), corn taffy residue (10 %), protected fat (1.0 %), bentonite (0.6 %), and mixed microbial additive (0.6 %). Six sheep were assigned randomly to either the control (concentrate mix + rye straw) or a treatment diet (concentrate mix + BF-based silage). RESULTS Compared with the control diet, feeding a BF-based silage diet resulted in similar ruminal characteristics (pH, acetate, propionate, and butyrate concentrations, and acetate: propionate ratio), higher (p < 0.05) ruminal NH3-N, higher (p < 0.05) ether extract digestibility, similar crude protein digestibility, lower (p < 0.05) dry matter, fiber, and crude ash digestibilities, and higher (p < 0.05) N retention (g/d). CONCLUSION The BF-based silage showed similar energy value, higher protein metabolism and utilization, and lower fiber digestion in sheep compared to the control diet containing rye straw.
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Affiliation(s)
- J S Seok
- HRC, Division of Food Biosciences, College of Health and Medical Life Sciences, Konkuk University, Chung-Ju, Chung-Buk 380-701 Korea
| | - Y I Kim
- HRC, Division of Food Biosciences, College of Health and Medical Life Sciences, Konkuk University, Chung-Ju, Chung-Buk 380-701 Korea
| | - Y H Lee
- HRC, Division of Food Biosciences, College of Health and Medical Life Sciences, Konkuk University, Chung-Ju, Chung-Buk 380-701 Korea
| | - D Y Choi
- HRC, Division of Food Biosciences, College of Health and Medical Life Sciences, Konkuk University, Chung-Ju, Chung-Buk 380-701 Korea
| | - W S Kwak
- HRC, Division of Food Biosciences, College of Health and Medical Life Sciences, Konkuk University, Chung-Ju, Chung-Buk 380-701 Korea
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21
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Seon HJ, Kim YI, Lim SC, Kim YH, Kwon YS. Clinical significance of residual lesions in chest computed tomography after anti-tuberculosis treatment. Int J Tuberc Lung Dis 2015; 18:341-6. [PMID: 24670573 DOI: 10.5588/ijtld.13.0565] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To evaluate the clinical significance of residual lesions in chest computed tomography (CT) findings at the end of anti-tuberculosis treatment. METHODS We retrospectively reviewed 66 newly diagnosed patients with pulmonary tuberculosis (PTB) who were proven bacteriologically and/or histologically between March 2009 and December 2011. All patients were treated with standard short-course chemotherapy. Chest CT scans were performed before and after treatment. We assessed the residual lesions according to the response to treatment: possible active, equivocal and no active lesions. RESULTS The most common CT finding before anti-tuberculosis treatment was bronchogenic spreading inflammation, such as the tree-in-bud appearance. After completion of anti-tuberculosis treatment, regression of the initial parenchymal findings was found in all types of PTB lesions except consolidations. According to the treatment response, 33 (50%) patients had possible active lesions, 5 (8%) had equivocal lesions and 28 (42%) had no active lesions. However, no lesions progressed during a median follow-up of 15 months (interquartile range 10-21 months) after treatment completion, and no patient relapsed during this period. CONCLUSIONS If initial parenchymal lesions regressed after sufficient TB treatment, residual lesions were not suggestive of persistent activity or the possibility of early relapse of PTB.
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Affiliation(s)
- H J Seon
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Y I Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - S C Lim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Y H Kim
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Y S Kwon
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
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Kwak WS, Kim YI, Lee SM, Lee YH, Choi DY. Effect of Feeding a Mixed Microbial Culture Fortified with Trace Minerals on the Performance and Carcass Characteristics of Late-fattening Hanwoo Steers: A Field Study. Asian-Australas J Anim Sci 2015; 28:1592-8. [PMID: 26580283 PMCID: PMC4647099 DOI: 10.5713/ajas.15.0101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/19/2015] [Accepted: 05/26/2015] [Indexed: 11/27/2022]
Abstract
This study was conducted to determine the effects of feeding a trace minerals-fortified microbial culture (TMC) on the performance and carcass characteristics of late-fattening Hanwoo steers. A mixture of microbes (0.6% [v/w] of Enterobacter sp., Bacillus sp., Lactobacillus sp., and Saccharomyces sp.) was cultured with 99% feedstuff for ensiling and 0.4% trace minerals (zinc, selenium, copper, and cobalt). Sixteen late-fattening steers (mean age, 21.8 months) were allocated to two diets: a control diet (concentrate mix and rice straw) and a treated diet (control diet+3.3% TMC). At a mean age of 31.1 months, all the steers were slaughtered. The addition of TMC to the diet did not affect the average daily weight gain of the late fattening steers, compared with that of control steers. Moreover, consuming the TMC-supplemented diet did not affect cold carcass weight, yield traits such as back fat thickness, longissimus muscle area, yield index or yield grade, or quality traits such as meat color, fat color, texture, maturity, marbling score, or quality grade. However, consumption of a TMC-supplemented diet increased the concentrations of zinc, selenium, and sulfur (p<0.05) in the longissimus muscle. With respect to amino acids, animals consuming TMC showed increased (p<0.05) concentrations of lysine, leucine, and valine among essential amino acids and a decreased (p<0.05) concentration of proline among non-essential amino acids. In conclusion, the consumption of a TMC-supplemented diet during the late-fattening period elevated the concentrations of certain trace minerals and essential amino acids in the longissimus muscle, without any deleterious effects on performance and other carcass characteristics of Hanwoo steers.
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Affiliation(s)
- W S Kwak
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - Y I Kim
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - S M Lee
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - Y H Lee
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
| | - D Y Choi
- Department of Animal Science, Kyungpook National University, Sangju 742-711, Korea
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23
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Kang KM, Sohn CH, Kim BS, Kim YI, Choi SH, Yun TJ, Kim JH, Park SW, Cheon GJ, Han MH. Correlation of Asymmetry Indices Measured by Arterial Spin-Labeling MR Imaging and SPECT in Patients with Crossed Cerebellar Diaschisis. AJNR Am J Neuroradiol 2015; 36:1662-8. [PMID: 26228883 DOI: 10.3174/ajnr.a4366] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 02/20/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Crossed cerebellar diaschisis, not only a secondary result of supratentorial infarction but also an indicator of clinical outcomes, has frequently been reported on PET and SPECT but has been rarely described with arterial spin-labeling MR imaging. The purpose of this study was to determine the ability of arterial spin-labeling MR imaging to evaluate crossed cerebellar diaschisis compared with that of SPECT. To our knowledge, this is the first study to validate arterial spin-labeling in crossed cerebellar diaschisis by using SPECT as a reference standard. MATERIALS AND METHODS This study included 16 patients in whom crossed cerebellar diaschisis was shown on SPECT and 10 control subjects in whom crossed cerebellar diaschisis was not shown on SPECT. During the qualitative analysis, asymmetric cerebellar perfusion on arterial spin-labeling was divided into 1 of the following 3 grades by 2 blinded observers: the affected cerebellum was isointense compared with the unaffected cerebellum (grade I), it was slightly hypointense (grade II), or it was markedly hypointense (grade III). In the quantitative analysis, asymmetry indices were calculated by using SPECT and arterial spin-labeling images. For statistical analysis, κ statistics, the interobserver correlation coefficient, the independent t test, Pearson correlation, and linear regression analysis were used. RESULTS Almost all the diagnoses of crossed cerebellar diaschisis on SPECT were noted on arterial spin-labeling in both qualitative and quantitative analyses with good interobserver agreement (κ = 0.961; interobserver correlation coefficient, 0.806). The mean asymmetry index of arterial spin-labeling (26.06 ± 9.00) was significantly larger than that for SPECT (15.28 ± 5.34; P < .001). There was a significant positive correlation between the asymmetry indices obtained for SPECT and those for arterial spin-labeling (r = 0.77 [95% CI, 0.443-0.916]; P < .001). The relationship of asymmetry indices between SPECT and arterial spin-labeling (x, y) was calculated as y = 6.2131 + 1.2986x (R(2) = 0.592; P < .001). CONCLUSIONS Arterial spin-labeling can be a noninvasive alternative to SPECT for evaluating crossed cerebellar diaschisis.
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Affiliation(s)
- K M Kang
- From the Departments of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., M.H.H.) Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea
| | - C-H Sohn
- From the Departments of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., M.H.H.) Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea Institute of Radiation Medicine (C.-H.S., S.H.C., M.H.H.), Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - B S Kim
- From the Departments of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., M.H.H.) Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y I Kim
- Nuclear Medicine (Y.I.K., G.J.C.), Seoul National University Hospital, Seoul, Republic of Korea
| | - S H Choi
- From the Departments of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., M.H.H.) Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea Institute of Radiation Medicine (C.-H.S., S.H.C., M.H.H.), Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - T J Yun
- From the Departments of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., M.H.H.) Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J-h Kim
- From the Departments of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., M.H.H.) Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S-W Park
- Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea Department of Radiology (S.-W.P.), Seoul National University Boramae Hospital, Seoul, Republic of Korea
| | - G J Cheon
- Nuclear Medicine (Y.I.K., G.J.C.), Seoul National University Hospital, Seoul, Republic of Korea
| | - M H Han
- From the Departments of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., M.H.H.) Department of Radiology (K.M.K., C.-H.S., B.S.K., S.H.C., T.J.Y., J.-h.K., S.-W.P., M.H.H.), Seoul National University College of Medicine, Seoul, Republic of Korea Institute of Radiation Medicine (C.-H.S., S.H.C., M.H.H.), Seoul National University Medical Research Center, Seoul, Republic of Korea
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Chang YG, Cohen SE, Phong C, Myers WK, Kim YI, Tseng R, Lin J, Zhang L, Boyd JS, Lee Y, Kang S, Lee D, Li S, Britt RD, Rust MJ, Golden SS, LiWang A. Circadian rhythms. A protein fold switch joins the circadian oscillator to clock output in cyanobacteria. Science 2015; 349:324-8. [PMID: 26113641 DOI: 10.1126/science.1260031] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 05/08/2015] [Indexed: 12/26/2022]
Abstract
Organisms are adapted to the relentless cycles of day and night, because they evolved timekeeping systems called circadian clocks, which regulate biological activities with ~24-hour rhythms. The clock of cyanobacteria is driven by a three-protein oscillator composed of KaiA, KaiB, and KaiC, which together generate a circadian rhythm of KaiC phosphorylation. We show that KaiB flips between two distinct three-dimensional folds, and its rare transition to an active state provides a time delay that is required to match the timing of the oscillator to that of Earth's rotation. Once KaiB switches folds, it binds phosphorylated KaiC and captures KaiA, which initiates a phase transition of the circadian cycle, and it regulates components of the clock-output pathway, which provides the link that joins the timekeeping and signaling functions of the oscillator.
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Affiliation(s)
- Yong-Gang Chang
- School of Natural Sciences, University of California, Merced, CA 95343, USA
| | - Susan E Cohen
- Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Connie Phong
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL 60637, USA
| | - William K Myers
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Yong-Ick Kim
- Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Roger Tseng
- School of Natural Sciences, University of California, Merced, CA 95343, USA. Quantitative and Systems Biology, University of California, Merced, CA 95343, USA
| | - Jenny Lin
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL 60637, USA
| | - Li Zhang
- School of Natural Sciences, University of California, Merced, CA 95343, USA
| | - Joseph S Boyd
- Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Yvonne Lee
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Shannon Kang
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - David Lee
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Sheng Li
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - R David Britt
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Michael J Rust
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL 60637, USA
| | - Susan S Golden
- Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA. Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Andy LiWang
- School of Natural Sciences, University of California, Merced, CA 95343, USA. Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA. Quantitative and Systems Biology, University of California, Merced, CA 95343, USA. Chemistry and Chemical Biology, University of California, Merced, CA 95343, USA. Health Sciences Research Institute, University of California, Merced, CA 95343, USA.
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25
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Kim YI, Park JM, Lee YH, Lee M, Choi DY, Kwak WS. Effect of By-product Feed-based Silage Feeding on the Performance, Blood Metabolites, and Carcass Characteristics of Hanwoo Steers (a Field Study). Asian-Australas J Anim Sci 2015; 28:180-7. [PMID: 25557813 PMCID: PMC4283162 DOI: 10.5713/ajas.14.0443] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 08/28/2014] [Accepted: 09/11/2014] [Indexed: 11/27/2022]
Abstract
This study was conducted to determine the effects of feeding by-product feed (BF)-based silage on the performance, blood metabolite parameters, and carcass characteristics of Hanwoo steers. The BF-based silage was composed of 50% spent mushroom substrate, 21% recycled poultry bedding, 15% cut ryegrass straw, 10.8% rice bran, 2% molasses, 0.6% bentonite, and 0.6% microbial additive (on a wet basis), and ensiled for over 5 d. Fifteen steers were allocated to three diets during the growing and fattening periods (3.1 and 9.8 months, respectively): a control diet (concentrate mix and free access to rice straw), a 50% BF-based silage diet (control diet+50% of maximum BF-based silage intake), and a 100% BF-based silage diet (the same amount of concentrate mix and ad libitum BF-based silage). The BF-based silage was fed during the growing and fattening periods, and was replaced with larger particles of rice straw during the finishing period. After 19.6 months of the whole period all the steers were slaughtered. Compared with feeding rice straw, feeding BF-based silage tended (p = 0.10) to increase the average daily gain (27%) and feed efficiency (18%) of the growing steers, caused by increased voluntary feed intake. Feeding BF-based silage had little effect on serum constituents, electrolytes, enzymes, or the blood cell profiles of fattening steers, except for low serum Ca and high blood urea concentrations (p<0.05). Feeding BF-based silage did not affect cold carcass weight, yield traits such as back fat thickness, longissimus muscle area, yield index or yield grade, or quality traits such as meat color, fat color, texture, maturity, marbling score, or quality grade. However, it improved good quality grade (1+ and 1++) appearance rates (60% for the control group vs 100% for the BF-based silage-fed groups). In conclusion, cheap BF-based silage could be successfully used as a good quality roughage source for beef cattle.
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Yeol SG, Won YS, Kim YI, Lee JW, Choi YJ, Park DC. Decreased Bcl-6 and increased Blimp-1 in the peritoneal cavity of patients with endometriosis. CLIN EXP OBSTET GYN 2015; 42:156-160. [PMID: 26054109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
PURPOSE OF INVESTIGATION The authors investigated the expression patterns of interleukin (IL)-lβ and tumor necrosis factor (TNF)-α, cytokines associated with peritoneal inflammatory reactions, and of B cell leukemia lymphoma (Bcl)-6 and B lymphocyte inducer of maturation program (Blimp)-1, transcriptional factors associated with immunoglobulin (Ig) production; the concentrations of Igs, and their correlation, in patients with and without endometriosis. MATERIALS AND METHODS The authors analyzed the peritoneal fluid of 98 patients, 46 with endometriosis, and 52 with benign tumors. RESULTS IL-1 and TNF-α mRNAs and IgG and IgA concentrations were higher in the endometriosis group, but the differences were not statistically significant. However, Bcl-6 mRNA level was significantly lower and Blimp-1 mRNA level was significantly higher in the endometriosis group with significant correlations among transcriptional factors, Igs, and cytokines (p < 0.05). CONCLUSION Peritoneal immune responses in patients with endometriosis may be due to increased IgG and IgA concentrations, as well as to changes in expression of proinflammatory cytokines and transcriptional factors.
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Kim YI, Boyd JS, Espinosa J, Golden SS. Detecting KaiC phosphorylation rhythms of the cyanobacterial circadian oscillator in vitro and in vivo. Methods Enzymol 2014; 551:153-73. [PMID: 25662456 DOI: 10.1016/bs.mie.2014.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The central oscillator of the cyanobacterial circadian clock is unique in the biochemical simplicity of its components and the robustness of the oscillation. The oscillator is composed of three cyanobacterial proteins: KaiA, KaiB, and KaiC. If very pure preparations of these three proteins are mixed in a test tube in the right proportions and with ATP and MgCl2, the phosphorylation states of KaiC will oscillate with a circadian period, and these states can be analyzed simply by SDS-PAGE. The purity of the proteins is critical for obtaining robust oscillation. Contaminating proteases will destroy oscillation by degradation of Kai proteins, and ATPases will attenuate robustness by consumption of ATP. Here, we provide a detailed protocol to obtain pure recombinant proteins from Escherichia coli to construct a robust cyanobacterial circadian oscillator in vitro. In addition, we present a protocol that facilitates analysis of phosphorylation states of KaiC and other phosphorylated proteins from in vivo samples.
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Affiliation(s)
- Yong-Ick Kim
- Center for Circadian Biology, University of California, San Diego, La Jolla, California, USA
| | - Joseph S Boyd
- Center for Circadian Biology, University of California, San Diego, La Jolla, California, USA
| | - Javier Espinosa
- Division of Genetics, University of Alicante, Alicante, Spain
| | - Susan S Golden
- Center for Circadian Biology, University of California, San Diego, La Jolla, California, USA; Division of Biological Sciences, University of California, San Diego, La Jolla, California, USA.
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28
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Kim YI, Oh YK, Park KK, Kwak WS. Ensiling Characteristics and the In situ Nutrient Degradability of a By-product Feed-based Silage. Asian-Australas J Anim Sci 2014; 27:201-8. [PMID: 25049944 PMCID: PMC4093216 DOI: 10.5713/ajas.2013.13448] [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] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 10/24/2013] [Accepted: 09/22/2013] [Indexed: 11/27/2022]
Abstract
This study was conducted to evaluate the ensiling characteristics and the in situ degradability of a by-product feed (BF)-based silage. Before ensilation, the BF-based mixture was composed of 50% spent mushroom substrate, 21% recycled poultry bedding, 15% ryegrass straw, 10.8% rice bran, 2% molasses, 0.6% bentonite, and 0.6% microbial inoculant on a wet basis and ensiled for up to 4 weeks. The BF-based silage contained on average 39.3% moisture, 13.4% crude protein (CP), and 52.2% neutral detergent fiber (NDF), 49% total digestible nutrient, and 37.8% physically effective NDF1.18 on a dry matter (DM) basis. Ensiling the BF-based silage for up to 4 weeks affected (p<0.01) the chemical composition to a small extent, increased (p<0.05) the lactic acid and NH3-N content, and decreased (p<0.05) both the total bacterial and lactic acid bacterial counts from 10(9) to 10(8) cfu/g when compared to that before ensiling. These parameters indicated that the silage was fermented and stored well during the 4-week ensiling period. Compared with rice or ryegrass straws, the BF-based silage had a higher (p<0.05) water-soluble and filterable fraction, a lower insoluble degradable DM and CP fraction (p<0.05), a lower digestible NDF (p<0.05) fraction, a higher (p<0.05) DM and CP disappearance and degradability rate, and a lower (p<0.05) NDF disappearance and degradability rate. These results indicated that cheap, good-quality BF-based roughage could be produced by ensiling SMS, RPB, rice bran, and a minimal amount of straw.
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Affiliation(s)
- Y I Kim
- RIBS, Division of Food Bioscience, College of Health and Medical Life Sciences, Konkuk University, Chungju, Chung-Buk 380-701, Korea
| | - Y K Oh
- RIBS, Division of Food Bioscience, College of Health and Medical Life Sciences, Konkuk University, Chungju, Chung-Buk 380-701, Korea
| | - K K Park
- RIBS, Division of Food Bioscience, College of Health and Medical Life Sciences, Konkuk University, Chungju, Chung-Buk 380-701, Korea
| | - W S Kwak
- RIBS, Division of Food Bioscience, College of Health and Medical Life Sciences, Konkuk University, Chungju, Chung-Buk 380-701, Korea
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29
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Kim YI, Lee YH, Kim KH, Oh YK, Moon YH, Kwak WS. Effects of Supplementing Microbially-fermented Spent Mushroom Substrates on Growth Performance and Carcass Characteristics of Hanwoo Steers (a Field Study). Asian-Australas J Anim Sci 2014; 25:1575-81. [PMID: 25049519 PMCID: PMC4093029 DOI: 10.5713/ajas.2012.12251] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 08/11/2012] [Accepted: 07/16/2012] [Indexed: 11/27/2022]
Abstract
This study evaluated the effect of dietary supplementation of microbially-fermented spent mushroom substrates (MFSMS) on weight gain, carcass characteristics, and economic efficiency of Hanwoo steers. Highly cellulolytic bacteria (Enterobacter spp. and Bacillus spp.) isolated from spent mushroom substrates (SMS) stacks were inoculated (1% v/v) into the SMS, which was anaerobically fermented and fed to the steers for 12.6 months during the growing and fattening periods. Growing Hanwoo steers were assigned to the control group without supplementation of Microbially-fermented SMS (MFSMS), to a treatment group with 50% of MFSMS (1/2 of the ad libitum group), and to a treatment group with ad libitum access to SMS (the ad libitum group). All the groups were fed the formulated feed and rice straw. The voluntary intake (DM basis) of MFSMS was 1.6 kg/d during the growing period and 1.4 kg/d during the fattening period. The voluntary rice straw intake decreased by 6 to 11%, but the total voluntary DMI increased by 7 to 15% with MFSMS fed. The increased DMI with MFSMS supplementation resulted in a tendency of increased (p = 0.055) live weight gain by 8 to 12% compared with the control group. At slaughtering, the supplementation of MFSMS increased (p<0.05) the ribeye area by an average of 10 cm(2). In conclusion, feeding MFSMS improved growth performance and carcass traits of Hanwoo steers and could successfully replace a part of conventional roughage such as rice straw commonly used in Asian countries.
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Affiliation(s)
- Y I Kim
- National Institute of Animal Science, RDA, Kyungkido, Korea
| | - Y H Lee
- National Institute of Animal Science, RDA, Kyungkido, Korea
| | - K H Kim
- National Institute of Animal Science, RDA, Kyungkido, Korea
| | - Y K Oh
- National Institute of Animal Science, RDA, Kyungkido, Korea
| | - Y H Moon
- Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology, Gyeongnam, Korea
| | - W S Kwak
- National Institute of Animal Science, RDA, Kyungkido, Korea
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White GR, Ainsworth R, Akagi T, Alabau-Gonzalvo J, Angal-Kalinin D, Araki S, Aryshev A, Bai S, Bambade P, Bett DR, Blair G, Blanch C, Blanco O, Blaskovic-Kraljevic N, Bolzon B, Boogert S, Burrows PN, Christian G, Corner L, Davis MR, Faus-Golfe A, Fukuda M, Gao J, García-Morales H, Geffroy N, Hayano H, Heo AY, Hildreth M, Honda Y, Huang JY, Hwang WH, Iwashita Y, Jang S, Jeremie A, Kamiya Y, Karataev P, Kim ES, Kim HS, Kim SH, Kim YI, Komamiya S, Kubo K, Kume T, Kuroda S, Lam B, Lekomtsev K, Liu S, Lyapin A, Marin E, Masuzawa M, McCormick D, Naito T, Nelson J, Nevay LJ, Okugi T, Omori T, Oroku M, Park H, Park YJ, Perry C, Pfingstner J, Phinney N, Rawankar A, Renier Y, Resta-López J, Ross M, Sanuki T, Schulte D, Seryi A, Shevelev M, Shimizu H, Snuverink J, Spencer C, Suehara T, Sugahara R, Takahashi T, Tanaka R, Tauchi T, Terunuma N, Tomás R, Urakawa J, Wang D, Warden M, Wendt M, Wolski A, Woodley M, Yamaguchi Y, Yamanaka T, Yan J, Yokoya K, Zimmermann F. Experimental validation of a novel compact focusing scheme for future energy-frontier linear lepton colliders. Phys Rev Lett 2014; 112:034802. [PMID: 24484144 DOI: 10.1103/physrevlett.112.034802] [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: 09/10/2013] [Indexed: 06/03/2023]
Abstract
A novel scheme for the focusing of high-energy leptons in future linear colliders was proposed in 2001 [P. Raimondi and A. Seryi, Phys. Rev. Lett. 86, 3779 (2001)]. This scheme has many advantageous properties over previously studied focusing schemes, including being significantly shorter for a given energy and having a significantly better energy bandwidth. Experimental results from the ATF2 accelerator at KEK are presented that validate the operating principle of such a scheme by demonstrating the demagnification of a 1.3 GeV electron beam down to below 65 nm in height using an energy-scaled version of the compact focusing optics designed for the ILC collider.
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Affiliation(s)
- G R White
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - R Ainsworth
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - T Akagi
- Department of Physics, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - J Alabau-Gonzalvo
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - D Angal-Kalinin
- CLRC: Daresbury Laboratory, Daresbury, Warrington, Cheshire WA4 4AD, United Kingdom
| | - S Araki
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - A Aryshev
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - S Bai
- Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS), Beijing, China
| | - P Bambade
- LAL, Universite Paris-Sud, CNRS/IN2P3, Orsay, France
| | - D R Bett
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - G Blair
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom and Science and Technology Facilities Council, Polaris House, North Star Avenue, Swindon SN2 1SZ, United Kingdom
| | - C Blanch
- Universidad de Valencia - Instituto de Física Corpuscular (IFC), Edificio Institutos de Investigación, c/ Catedrático José Beltrán, 2, E-46980 Paterna, Spain
| | - O Blanco
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland and LAL, Universite Paris-Sud, CNRS/IN2P3, Orsay, France
| | - N Blaskovic-Kraljevic
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - B Bolzon
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland and CLRC: Daresbury Laboratory, Daresbury, Warrington, Cheshire WA4 4AD, United Kingdom and Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Oxford St., Liverpool L69 3BX, United Kingdom
| | - S Boogert
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - P N Burrows
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - G Christian
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - L Corner
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - M R Davis
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - A Faus-Golfe
- Universidad de Valencia - Instituto de Física Corpuscular (IFC), Edificio Institutos de Investigación, c/ Catedrático José Beltrán, 2, E-46980 Paterna, Spain
| | - M Fukuda
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Gao
- Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS), Beijing, China
| | - H García-Morales
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland and Universitat Politécnica de Catalunya, BarcelonaTech, C. Jordi Girona, 31. 08034 Barcelona, Spain
| | - N Geffroy
- LAPP-Universite de Savoie-CNRS/IN2P3, Annecy-le-Vieux, France
| | - H Hayano
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - A Y Heo
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - M Hildreth
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Y Honda
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Y Huang
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - W H Hwang
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - Y Iwashita
- Institute for Chemical Research (ICR), Nuclear Science Research Facility, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - S Jang
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - A Jeremie
- LAPP-Universite de Savoie-CNRS/IN2P3, Annecy-le-Vieux, France
| | - Y Kamiya
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - P Karataev
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - E S Kim
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - H S Kim
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - S H Kim
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - Y I Kim
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - S Komamiya
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - K Kubo
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Kume
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - S Kuroda
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - B Lam
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - K Lekomtsev
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - S Liu
- LAL, Universite Paris-Sud, CNRS/IN2P3, Orsay, France
| | - A Lyapin
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - E Marin
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - M Masuzawa
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - D McCormick
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - T Naito
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Nelson
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - L J Nevay
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom and John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - T Okugi
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Omori
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - M Oroku
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - H Park
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - Y J Park
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - C Perry
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - J Pfingstner
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - N Phinney
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - A Rawankar
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Y Renier
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - J Resta-López
- Universidad de Valencia - Instituto de Física Corpuscular (IFC), Edificio Institutos de Investigación, c/ Catedrático José Beltrán, 2, E-46980 Paterna, Spain
| | - M Ross
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - T Sanuki
- Tohoku University, 28 Kawauchi, Aoba-ku, Sendai, 980-8576 Japan
| | - D Schulte
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - A Seryi
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - M Shevelev
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - H Shimizu
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Snuverink
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - C Spencer
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - T Suehara
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - R Sugahara
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Takahashi
- Department of Physics, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - R Tanaka
- Department of Physics, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - T Tauchi
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - N Terunuma
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - R Tomás
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - J Urakawa
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - D Wang
- Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS), Beijing, China
| | - M Warden
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - M Wendt
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - A Wolski
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Oxford St., Liverpool L69 3BX, United Kingdom
| | - M Woodley
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - Y Yamaguchi
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - T Yamanaka
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - J Yan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - K Yokoya
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - F Zimmermann
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
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Gwak MS, Kim WH, Choi SJ, Lee JJ, Ko JS, Kim GS, Kim YI, Kim MH. Arthroscopic shoulder surgery under general anesthesia with brachial plexus block: postoperative respiratory dysfunction of combined obstructive and restrictive pathology. Anaesthesist 2013; 62:113-20. [PMID: 23400711 DOI: 10.1007/s00101-012-2125-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 12/04/2012] [Accepted: 12/10/2012] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Changes in respiratory parameters and pulmonary function tests were evaluated after shoulder arthroscopic surgery with brachial plexus block (BPB). The purpose of this study was to identify the mechanism of respiratory dysfunction after this type of surgery. METHODS Patients undergoing arthroscopic rotator cuff repair under general anesthesia (GA) with BPB were enrolled in the arthroscopy group (n = 30) while those undergoing open reduction of a clavicle or humerus fracture under GA were enrolled in the control group (n = 30). Forced vital capacity (FVC) and forced expiratory volume 1 s (FEV(1)) were measured at the outpatient clinic stage (#1) before (#2) and 20 min after BPB (#3) and 1 h after extubation (#4). Respiratory variable measurements along with the cuff leak test were performed 5 min after surgical positioning (T1) and at the start of skin closure (T2). Respiratory discomfort was evaluated after extubation. The upper airway diameters and soft tissue depth of chest wall were also measured by ultrasonography at stages #3 and #4. RESULTS Static compliance decreased significantly at T2 in the arthroscopy group (50 ± 11 at T1 vs. 44 ± 9 ml/cm H(2)O at T2, p =0.035) but not in the control group. The incidence of positive cuff leak tests at T2 was significantly higher in the arthroscopy group than in the control group (47% in the arthroscopy group vs. 17% in controls, p =0.010). While FEV(1) and FVC remained stable at stages #1 and #2, FVC and FEV(1) decreased at stages #3 and #4 only in the arthroscopy group (FVC in arthroscopy group, #2: 3.26 ± 0.77 l; #3: 2.55 ± 0.63 l, p =0.015 vs. #2; #4: 2.66 ± 0.41 l, p =0.040 vs. #2). The subglottic diameter decreased at #4 in the arthroscopy group, while no changes occurred in the control group (0.70 ± 0.21 cm vs. 0.85 ± 0.23 cm in the arthroscopy and control groups, respectively, p =0.011). Depth of skin to pleura increased at both intercostal spaces 1-2 and 3-4 in the arthroscopy group. There were three cases of hypoxia (S(p)O(2) < 95%) with room air in the arthroscopy group while none occurred in the controls. CONCLUSION Shoulder arthroscopic surgery under GA with BPB induced both restrictive and obstructive pathologies. It is important to maintain a high level of awareness for the potential negative respiratory effects of this surgery especially for subjects with pre-existing cardiopulmonary disease. The measurements in this study would be useful to monitor the risk of respiratory dysfunction in these patients.
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Affiliation(s)
- M S Gwak
- Department of Anesthesiolgy and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, 135-710, Seoul, Republic of Korea
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Hong GH, Hernández-Ceballos MA, Lozano RL, Kim YI, Lee HM, Kim SH, Yeh SW, Bolívar JP, Baskaran M. Radioactive impact in South Korea from the damaged nuclear reactors in Fukushima: evidence of long and short range transport. J Radiol Prot 2012; 32:397-411. [PMID: 23006667 DOI: 10.1088/0952-4746/32/4/397] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Traces of long-lived fallout-derived radioisotopes ((134)Cs and (137)Cs) were found in wet and dry deposition samples collected from the west and east coasts of South Korea from March to May 2011 following the release of radionuclides from the damaged nuclear power plants in Fukushima, Japan. The analysis of air mass back trajectory and atmospheric pressure systems indicated that the Fukushima-derived radiocaesium had predominantly reached South Korea from the west by surface westerlies from 11 March to 5 April; however, after 6 April, air masses arrived from Japan directly due to a high pressure system that developed to the east of Japan. Spatial variation of deposition fluxes of radiocaesium in South Korea was partly attributed to the presence of local longitudinal orography.
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Affiliation(s)
- G H Hong
- Institute of Ocean Science and Technology, Ansan, Korea
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Hernández-Ceballos MA, Hong GH, Lozano RL, Kim YI, Lee HM, Kim SH, Yeh SW, Bolívar JP, Baskaran M. Tracking the complete revolution of Surface Westerlies over Northern Hemisphere using radionuclides emitted from Fukushima. Sci Total Environ 2012; 438:80-85. [PMID: 22975305 DOI: 10.1016/j.scitotenv.2012.08.024] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 07/13/2012] [Accepted: 08/06/2012] [Indexed: 06/01/2023]
Abstract
Massive amounts of anthropogenic radionuclides were released from the nuclear reactors located in Fukushima (northeastern Japan) between 12 and 16 March 2011 following the earthquake and tsunami. Ground level air radioactivity was monitored around the globe immediately after the Fukushima accident. This global effort provided a unique opportunity to trace the surface air mass movement at different sites in the Northern Hemisphere. Based on surface air radioactivity measurements around the globe and the air mass backward trajectory analysis of the Fukushima radioactive plume at various places in the Northern Hemisphere by employing the Hybrid Single-Particle Lagrangian Integrated Trajectory model, we show for the first time, that the uninterrupted complete revolution of the mid-latitude Surface Westerlies took place in less than 21 days, with an average zonal velocity of>60 km/h. The position and circulation time scale of Surface Westerlies are of wide interest to a large number of global researchers including meteorologists, atmospheric researchers and global climate modellers.
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Oh YC, Kang OH, Kim SB, Mun SH, Park CB, Kim YG, Kim YI, Lee YS, Han SH, Keum JH, Shin DW, Ma JY, Kwon DY. Anti-inflammatory effect of sinomenine by inhibition of pro-inflammatory mediators in PMA plus A23187-stimulated HMC-1 Cells. Eur Rev Med Pharmacol Sci 2012; 16:1184-1191. [PMID: 23047501] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Sinomenine is an alkaloid compound and a prominent anti-inflammatory agent found in the root of the climbing plant Sinomenium acutum. However, its effects on the mechanism of human mast cell line (HMC)-1-mediated inflammation remained unknown. MATERIALS AND METHODS To provide insight into the biological effects of sinomenine, we examined its influence on the pro-inflammatory cytokine production in HMC-1 cells stimulated by phorbol 12-myristate-13-acetate (PMA) plus A23187 by evaluating the stimulated cells in the presence or absence of sinomenine. In the present study, the pro-inflammatory cytokine production was measured using ELISA, Reverse Transcription-polymerase chain reaction (RT-PCR) and nuclear factor (NF)-kappaB, mitogen-activated protein kinases (MAPKs) pathway activation, as determined by Western blot analysis. Also, cyclooxygenase (COX)-2 expression was measured through Western blot and RT-PCR analysis. RESULTS Sinomenine inhibited the pro-inflammatory cytokine production induced by PMA plus A23187 in a dose-dependent manner. Furthermore, sinomenine inhibited the phosphorylations of extracellular signal-regulated kinase (ERK) and p38 MAPKs as well as the translocation of NF-kappaB p65 through reduced IkappaBalpha degradation. In addition, sinomenine suppressed COX-2 protein and mRNA expression dose-dependently. CONCLUSIONS Taken together, the results of this study indicate that the anti-inflammatory effects of sinomenine may occur via the inhibition of pro-inflammatory cytokine and COX-2 production through the inhibition of MAPKs and NF-kappaB pathway activation by PMA plus A23187 stimulation in HMC-1 cells.
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Affiliation(s)
- Y C Oh
- College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Wonkwang University, Iksan, Jeonbuk, Korea
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Lee IJ, Kim YI, Kim KW, Kim DH, Ryoo I, Lee MW, Chung JW. Radiofrequency ablation combined with transcatheter arterial embolisation in rabbit liver: investigation of the ablation zone according to the time interval between the two therapies. Br J Radiol 2012; 85:e987-94. [PMID: 22674711 DOI: 10.1259/bjr/90024696] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVES This study was designed to evaluate the extent of the radiofrequency ablation zone in relation to the time interval between transcatheter arterial embolisation (TAE) and radiofrequency ablation (RFA) and, ultimately, to determine the optimal strategy of combining these two therapies for hepatocellular carcinoma. METHODS 15 rabbits were evenly divided into three groups: Group A was treated with RFA alone; Group B was treated with TAE immediately followed by RFA; and Group C was treated with TAE followed by RFA 5 days later. All animals underwent perfusion CT (PCT) scans immediately after RFA. Serum liver transaminases were measured to evaluate acute liver damage. Animals were euthanised for pathological analysis of ablated tissues 10 days after RFA. Non-parametric analyses were conducted to compare PCT indices, the RFA zone and liver transaminase levels among the three experimental groups. RESULTS Group B showed a significantly larger ablation zone than the other two groups. Arterial liver perfusion and hepatic perfusion index represented well the perfusion decrease after TAE on PCT. Although Group B showed the most elevated liver transaminase levels at 1 day post RFA, the enzymes decreased to levels that were not different from the other groups at 10 days post-RFA. CONCLUSIONS When combined TAE and RFA therapy is considered, TAE should be followed by RFA as quickly as possible, as it can be performed safely without serious hepatic deterioration, despite the short interval between the two procedures.
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Affiliation(s)
- I J Lee
- Department of Radiology, Seoul National University College of Medicine, and the Institute of Radiation Medicine, SNUMRC, Seoul, Republic of Korea
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Kim YI, Chung KY, So BJ, Park JJ. Mucosal protective effect of PGI2 on canine small bowel auto-transplantation. Transplant Proc 2012; 44:1169-70. [PMID: 22564655 DOI: 10.1016/j.transproceed.2012.02.025] [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: 10/28/2022]
Abstract
PURPOSE We designed this experimental study to assess the mucosal protective effects of continuous prostaglandin I2 (PGI2) infusion after canine small bowel autotransplantation. MATERIALS AND METHODS Six Mongrel dogs were randomly divided two groups: PGI2 (n = 3) and control (n = 3). The small bowel from jejunum to ileum was obtained, including the mesenteric vascular pedicle. After cold flushing ex vivo, the harvested segment was preserved in an icebox for 3 hours. Thereafter we reimplanted the harvested intestinal segment. While completing the anastomosis, PGI2 (50 μg) was slowly infused through the mesenteric artery in the PGI2 group versus the same volume of saline in the control group. At 1, 3 and 6 days after autotransplantation, we obtained blood samples, and at 6 days, small bowel segments. Endotoxin and interleukin 6 (IL-6) levels were measured and all histologic specimens stained with hematoxylin-eosin H-E were reviewed by a pathologist to grade mucosal damage as: mild (1 point), moderate (2 points), or severe (3 points) change. RESULTS Mean basal serum endotoxin levels were similar in both groups the PGI2 groups versus control group were 0.216 ± 0.018 versus 0.223 ± 0.040 EU/mL, respectively. However, on day 3 after the operation, the PGI2 group showed much decreased levels of serum endotoxin compared to control levels: 0.349 ± 0.196 versus 0.842 ± 0.446 EU/mL. The mean concentration of serum IL-6 on day 1 after operation among the PGI2 versus control group were 32.13 ± 7.13 pg/mL versus 36.96 ± 3.65 pg/mL. The histologic scores at 6 days after the operation were PGI2 group versus control group: 1.33 versus 1.66 (P = NS). CONCLUSION Continuous infusions of PGI2 through the mesenteric artery after the canine small bowel autotransplantation may protect the small bowel mucosal barrier.
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Affiliation(s)
- Y I Kim
- Department of Surgery, Ewha Womans University, School of Medicine, Seoul, Korea
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Petzina R, Hoffmann G, Kim YI, Scheid M, Schöttler J, Lutter G, Schöneich F, Rahimi A, Cremer J. ZipFix sternal closure system – single-centre experience in 20 patients and how to use it. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297646] [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: 10/14/2022]
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38
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Kim YI, Scheid M, Petzina R, Bierbach B, Schöttler J, Schöneich F, Rahimi A, Cremer J. Patient's condition based algorhythm in the management of sternal dehiscence leads to an excellent outcome. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297904] [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: 10/14/2022]
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39
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Kim HJ, Kwon YM, Kim YI, Lee IH, Jin BR, Han YS, Cheon HM, Kang YJ, Seo SJ. Molecular cloning and characterization of the STAT gene in Hyphantria cunea haemocytes. Insect Mol Biol 2011; 20:723-732. [PMID: 21958414 DOI: 10.1111/j.1365-2583.2011.01102.x] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A new insect member of the signal transducer and activator of transcription (STAT) family of transcription factors, Hyphantria cunea STAT (HcSTAT), was cloned from the lepidopteran H. cunea. The domain involved in DNA interaction and the Src homology 2 (SH2) domain were well conserved. During all developmental stages, the gene was expressed at a low level in the haemocytes, fat body cells, midgut, epidermis and Malpighian tubules. The haemocytes and Malpighian tubules showed transcriptional activation of HcSTAT upon Gram-negative and Gram-positive bacterial challenges. These challenges increased the induction and nuclear translocation of the HcSTAT protein that recognizes a STAT target site in H. cunea haemocytes. In vivo treatment with sodium orthovanadate translocated HcSTAT to the haemocyte nucleus. This study shows the involvement of the haemocyte Janus kinase/STAT pathway after microbial infection in lepidopteran insects.
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Affiliation(s)
- H J Kim
- Division of Applied Life Science (BK21 program), Gyeongsang National University, Jinju, Korea
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40
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Abstract
Pneumoperitoneum following cardiopulmonary resuscitation (CPR) had been described as a rare complication. Pneumoperitoneum after CPR could be due to gastric perforation or intrathoracic air tracking into the abdominal cavity via the diaphragm as a result of bag-valve-mask ventilation, external chest compression or improper intubation. In most reported cases, the specific injuries could be identified. We reported an unusual case of pneumoperitoneum following CPR in which the specific cause was not definitely established. Emergency physicians should be aware of the mechanism and clinical signs suggesting of pneumoperitoneum during or after CPR.
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Wood TL, Bridwell-Rabb J, Kim YI, Gao T, Chang YG, LiWang A, Barondeau DP, Golden SS. The KaiA protein of the cyanobacterial circadian oscillator is modulated by a redox-active cofactor. Proc Natl Acad Sci U S A 2010; 107:5804-9. [PMID: 20231482 PMCID: PMC2851934 DOI: 10.1073/pnas.0910141107] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The circadian rhythms exhibited in the cyanobacterium Synechococcus elongatus are generated by an oscillator comprised of the proteins KaiA, KaiB, and KaiC. An external signal that commonly affects the circadian clock is light. Previously, we reported that the bacteriophytochrome-like protein CikA passes environmental signals to the oscillator by directly binding a quinone and using cellular redox state as a measure of light in this photosynthetic organism. Here, we report that KaiA also binds the quinone analog 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone (DBMIB), and the oxidized form of DBMIB, but not its reduced form, decreases the stability of KaiA in vivo, causes multimerization in vitro, and blocks KaiA stimulation of KaiC phosphorylation, which is central to circadian oscillation. Our data suggest that KaiA directly senses environmental signals as changes in redox state and modulates the circadian clock.
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Affiliation(s)
- Thammajun L. Wood
- The Center for Biological Clocks Research, Department of Biology, and
| | | | - Yong-Ick Kim
- Center for Chronobiology and Division of Biological Sciences, University of California-San Diego, La Jolla, CA 92093-0116; and
| | - Tiyu Gao
- The Center for Biological Clocks Research, Department of Biology, and
| | - Yong-Gang Chang
- School of Natural Sciences, University of California, Merced, CA 95340
| | - Andy LiWang
- School of Natural Sciences, University of California, Merced, CA 95340
| | - David P. Barondeau
- Department of Chemistry, Texas A&M University, College Station, TX 77843
| | - Susan S. Golden
- The Center for Biological Clocks Research, Department of Biology, and
- Center for Chronobiology and Division of Biological Sciences, University of California-San Diego, La Jolla, CA 92093-0116; and
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42
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Dong G, Yang Q, Wang Q, Kim YI, Wood TL, Osteryoung KW, van Oudenaarden A, Golden SS. Elevated ATPase activity of KaiC applies a circadian checkpoint on cell division in Synechococcus elongatus. Cell 2010; 140:529-39. [PMID: 20178745 DOI: 10.1016/j.cell.2009.12.042] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2009] [Revised: 10/13/2009] [Accepted: 12/21/2009] [Indexed: 11/16/2022]
Abstract
A circadian clock coordinates physiology and behavior in diverse groups of living organisms. Another major cyclic cellular event, the cell cycle, is regulated by the circadian clock in the few cases where linkage of these cycles has been studied. In the cyanobacterium Synechococcus elongatus, the circadian clock gates cell division by an unknown mechanism. Using timelapse microscopy, we confirm the gating of cell division in the wild-type and demonstrate the regulation of cytokinesis by key clock components. Specifically, a state of the oscillator protein KaiC that is associated with elevated ATPase activity closes the gate by acting through a known clock output pathway to inhibit FtsZ ring formation at the division site. An activity that stimulates KaiC phosphorylation independently of the KaiA protein was also uncovered. We propose a model that separates the functions of KaiC ATPase and phosphorylation in cell division gating and other circadian behaviors.
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Affiliation(s)
- Guogang Dong
- Center for Biological Clocks Research, Department of Biology, Texas A&M University, College Station, 77843-3258, USA
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43
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Shen CP, Yuan CZ, Aihara H, Arinstein K, Aushev T, Bakich AM, Balagura V, Barberio E, Bay A, Belous K, Bhardwaj V, Bischofberger M, Bracko M, Browder TE, Chang MC, Chang P, Chen A, Chen P, Cheon BG, Chiang CC, Cho IS, Choi Y, Dalseno J, Das A, Dolezal Z, Drutskoy A, Eidelman S, Epifanov D, Gabyshev N, Golob B, Ha H, Haba J, Han BY, Hayasaka K, Hayashii H, Horii Y, Hoshi Y, Hou WS, Hsiung YB, Hyun HJ, Inami K, Itoh R, Iwabuchi M, Iwasaki M, Iwasaki Y, Joshi NJ, Julius T, Kang JH, Kawasaki T, Kiesling C, Kim HJ, Kim HO, Kim JH, Kim SK, Kim YI, Kim YJ, Ko BR, Kodys P, Korpar S, Kreps M, Krizan P, Krokovny P, Kuhr T, Kwon YJ, Kyeong SH, Lange JS, Lee MJ, Lee SH, Li J, Liu C, Liu Y, Liventsev D, Louvot R, Matyja A, McOnie S, Miyabayashi K, Miyata H, Miyazaki Y, Mori T, Mussa R, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Neubauer S, Nishida S, Nishimura K, Nitoh O, Ohshima T, Okuno S, Olsen SL, Pakhlova G, Park CW, Park H, Park HK, Pestotnik R, Petric M, Piilonen LE, Röhrken M, Ryu S, Sahoo H, Sakai Y, Schneider O, Senyo K, Sevior ME, Shapkin M, Shiu JG, Shwartz B, Singh JB, Smerkol P, Sokolov A, Solovieva E, Staric M, Teramoto Y, Trabelsi K, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Varner G, Vervink K, Wang CH, Wang P, Wang XL, Watanabe Y, Wedd R, Won E, Yabsley BD, Yamashita Y, Zhang CC, Zhang ZP, Zivko T, Zyukova O. Evidence for a new resonance and search for the Y(4140) in the gammagamma-->phiJ/psi process. Phys Rev Lett 2010; 104:112004. [PMID: 20366468 DOI: 10.1103/physrevlett.104.112004] [Citation(s) in RCA: 7] [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: 12/11/2009] [Indexed: 05/29/2023]
Abstract
The process gammagamma-->phiJ/psi is measured using a data sample of 825 fb{-1} collected with the Belle detector. A narrow peak of 8.8{-3.2}{+4.2} events, with a significance of 3.2 standard deviations including systematic uncertainty, is observed. The mass and natural width of the structure [named X(4350)] are measured to be [4350.6{-5.1}{+4.6}(stat)+/-0.7(syst)] MeV/c{2} and [13{-9}{+18}(stat)+/-4(syst)] MeV, respectively. The product of its two-photon decay width and branching fraction to phiJ/psi is [6.7{-2.4}{+3.2}(stat)+/-1.1(syst)] eV for J{P}=0{+}, or [1.5{-0.6}{+0.7}(stat)+/-0.3(syst)] eV for J{P}=2{+}. No signal for the Y(4140)-->phiJ/psi structure reported by the CDF Collaboration in B-->K{+}phiJ/psi decays is observed, and limits of Gamma_{gammagamma}(Y(4140))B(Y(4140)-->phiJ/psi)<41 eV for J{P}=0;{+} or <6.0 eV for J{P}=2{+} are determined at the 90% C.L. This disfavors the scenario in which the Y(4140) is a D{s}{*+}D{s}{*-} molecule.
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Affiliation(s)
- C P Shen
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing
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44
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Uehara S, Aushev T, Bakich AM, Belous K, Bhardwaj V, Bischofberger M, Bracko M, Browder TE, Chang P, Chen A, Chen P, Cheon BG, Chiang CC, Cho IS, Choi SK, Choi Y, Dalseno J, Drutskoy A, Eidelman S, Epifanov D, Feindt M, Gabyshev N, Ha H, Haba J, Hayasaka K, Hayashii H, Hoshi Y, Hou WS, Hsiung YB, Hyun HJ, Inami K, Itoh R, Iwabuchi M, Iwasaki M, Iwasaki Y, Joshi NJ, Kang JH, Kawasaki T, Kiesling C, Kim HJ, Kim JH, Kim YI, Kim YJ, Ko BR, Kodys P, Korpar S, Krizan P, Krokovny P, Kumita T, Kuzmin A, Kwon YJ, Kyeong SH, Lange JS, Lee MJ, Lee SH, Li J, Liu C, Liu Y, Liventsev D, Louvot R, Matyja A, McOnie S, Miyabayashi K, Miyata H, Miyazaki Y, Mizuk R, Mussa R, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okuno S, Olsen SL, Pakhlov P, Pakhlova G, Park CW, Park H, Park HK, Pestotnik R, Petric M, Piilonen LE, Röhrken M, Ryu S, Sahoo H, Sakai Y, Schneider O, Schwanda C, Sevior ME, Shapkin M, Shen CP, Shiu JG, Shwartz B, Singh JB, Smerkol P, Solovieva E, Staric M, Teramoto Y, Trabelsi K, Unno Y, Uno S, Urquijo P, Varner G, Vervink K, Wang CH, Wang P, Watanabe Y, Wedd R, Won E, Yabsley BD, Yamashita Y, Yuan CZ, Zhang CC, Zivko T, Zyukova O. Observation of a charmoniumlike enhancement in the gammagamma-->omega(J)/psi process. Phys Rev Lett 2010; 104:092001. [PMID: 20366981 DOI: 10.1103/physrevlett.104.092001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Indexed: 05/29/2023]
Abstract
We report the results of a search for a charmoniumlike state produced in the process gammagamma-->omegaJ/psi in the 3.9-4.2 GeV/c{2} mass region. We observe a significant enhancement, which is well described by a resonant shape with mass M=(3915+/-3+/-2) MeV/c{2} and total width Gamma=(17+/-10+/-3) MeV. This enhancement may be related to one or more of the three charmoniumlike states so far reported in the 3.90-3.95 GeV/c{2} mass region.
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Affiliation(s)
- S Uehara
- High Energy Accelerator Research Organization (KEK), Tsukuba
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45
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Urquijo P, Barberio E, Adachi I, Aihara H, Arinstein K, Bakich AM, Belous K, Bhardwaj V, Bischofberger M, Bozek A, Bracko M, Browder TE, Chao Y, Chen A, Cheon BG, Chistov R, Cho IS, Choi Y, Dalseno J, Das A, Dash M, Dungel W, Eidelman S, Gabyshev N, Goldenzweig P, Golob B, Ha H, Haba J, Hayashii H, Horii Y, Hoshi Y, Hou WS, Hsiung YB, Hyun HJ, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Kah DH, Kang JH, Katayama N, Kawai H, Kawasaki T, Kim HO, Kim JH, Kim SK, Kim YI, Kim YJ, Kinoshita K, Ko BR, Kreps M, Krizan P, Krokovny P, Kuhr T, Kuzmin A, Kwon YJ, Kyeong SH, Lee MJ, Lee SE, Lee SH, Lesiak T, Li J, Limosani A, Liu C, Liventsev D, Louvot R, Mandl F, Matyja A, McOnie S, Miyata H, Miyazaki Y, Mizuk R, Mori T, Nagasaka Y, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nishimura K, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okuno S, Ostrowicz W, Ozaki H, Pakhlova G, Park CW, Park HK, Park KS, Pestotnik R, Piilonen LE, Sahoo H, Sakai Y, Schneider O, Schwanda C, Seidl R, Senyo K, Sevior ME, Shapkin M, Shiu JG, Shwartz B, Singh JB, Stanic S, Staric M, Sumisawa K, Taylor GN, Teramoto Y, Trabelsi K, Uehara S, Uglov T, Unno Y, Uno S, Varner G, Varvell KE, Vervink K, Wang CH, Wang MZ, Wang P, Watanabe Y, Wedd R, Won E, Yabsley BD, Yamashita Y, Zhang ZP, Zhilich V, Zhulanov V, Zivko T, Zupanc A, Zyukova O. Measurement of |V{ub}| from inclusive charmless semileptonic B decays. Phys Rev Lett 2010; 104:021801. [PMID: 20366585 DOI: 10.1103/physrevlett.104.021801] [Citation(s) in RCA: 6] [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: 07/03/2009] [Indexed: 05/29/2023]
Abstract
We present the partial branching fraction for inclusive charmless semileptonic B decays and the corresponding value of the Cabibbo-Kobayashi-Maskawa matrix element |V{ub}|, using a multivariate analysis method to access approximately 90% of the B-->X{u}lnu phase space. This approach dramatically reduces the theoretical uncertainties from the b-quark mass and nonperturbative QCD compared to all previous inclusive measurements. The results are based on a sample of 657x10{6} BB[over ] pairs collected with the Belle detector. We find that DeltaB(B-->X{u}lnu;p(l){*B}>1.0 GeV/c)=1.963x(1+/-0.088{stat}+/-0.081{syst})x10{-3}. Corresponding values of |V{ub}| are extracted using several theoretical calculations.
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Affiliation(s)
- P Urquijo
- University of Melbourne, School of Physics, Victoria 3010
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Kim YI, Park CK, Park DJ, Wi JO, Han ER, Koh YI. A case of famotidine-induced anaphylaxis. J Investig Allergol Clin Immunol 2010; 20:166-169. [PMID: 20461973] [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: 05/29/2023] Open
Abstract
Famotidine is considered to be safe, causing very few adverse events. We describe a case of famotidine-induced anaphylaxis in a 23-year-old man who presented with dyspnea, seizure-like activity, and comatose mental state immediately after an intravenous injection of cefazedone and famotidine for the preoperative preparation of left varicocele. He completely recovered with epinephrine, fluid replacement, and corticosteroids. Skin tests with cefazedone and other beta-lactam antibiotics were all negative but skin tests with famotidine showed a clear positive immediate reaction. Interestingly, we also observed clear positive skin reactions to other H2-receptor antagonists such as nizatidine and ranitidine, which have similar side chains to the ring structures. Our case suggests that famotidine may induce immunoglobulin E-mediated anaphylaxis and have cross-reactivity with nizatidine and ranitidine. Clinicians should therefore be aware of possible life-threatening adverse reactions to commonly used H2-receptor antagonists such as famotidine.
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Affiliation(s)
- Y I Kim
- Division of Allergy, Asthma and Clinical Immunology, Department of Internal Medicine, Chonnam National University Medical School and Research Institute of Medical Science, Gwangju, South Korea
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47
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Limosani A, Aihara H, Arinstein K, Aushev T, Bakich AM, Balagura V, Barberio E, Bay A, Belous K, Bischofberger M, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chao Y, Chen A, Cheon BG, Choi Y, Dalseno J, Danilov M, Drutskoy A, Dungel W, Eidelman S, Goldenzweig P, Golob B, Ha H, Hayashii H, Hoshi Y, Hou WS, Hyun HJ, Inami K, Itoh R, Iwasaki Y, Julius T, Kah DH, Kim HO, Kim SK, Kim YI, Kim YJ, Kinoshita K, Ko BR, Korpar S, Kreps M, Krizan P, Krokovny P, Kuhr T, Kumar R, Kwon YJ, Kyeong SH, Lesiak T, Li J, Liu C, Liventsev D, Louvot R, Matyja A, Miyabayashi K, Miyata H, Miyazaki Y, Mizuk R, Mori T, Nakao M, Nakazawa H, Nishida S, Nishimura K, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okuno S, Ozaki H, Pakhlova G, Park CW, Park H, Piilonen LE, Rozanska M, Sahoo H, Sakai Y, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Senyo K, Sevior ME, Shapkin M, Shebalin V, Shen CP, Shiu JG, Singh JB, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki S, Taylor GN, Teramoto Y, Trabelsi K, Tsuboyama T, Uehara S, Unno Y, Uno S, Urquijo P, Ushiroda Y, Varner G, Varvell KE, Vervink K, Wang CH, Wang MZ, Wang P, Watanabe Y, Wedd R, Wicht J, Won E, Yabsley BD, Yamamoto H, Yamashita Y, Zhang ZP, Zivko T, Zupanc A. Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV. Phys Rev Lett 2009; 103:241801. [PMID: 20366195 DOI: 10.1103/physrevlett.103.241801] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Indexed: 05/29/2023]
Abstract
Using 605 fb(-1) of data collected at the Upsilon(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B-->X(s)gamma. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B-->X(s)}gamma)=(3.45+/-0.15+/-0.40)x10(-4), where the errors are statistical and systematic.
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Affiliation(s)
- A Limosani
- University of Melbourne, School of Physics, Victoria 3010
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48
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Wei JT, Chang P, Adachi I, Aihara H, Aulchenko V, Aushev T, Bakich AM, Balagura V, Barberio E, Bondar A, Bozek A, Bracko M, Browder TE, Chang YW, Chao Y, Chen A, Chen KF, Cheon BG, Chiang CC, Cho IS, Choi Y, Dalseno J, Drutskoy A, Dungel W, Eidelman S, Gabyshev N, Goldenzweig P, Golob B, Ha H, Han BY, Hayasaka K, Hayashii H, Hazumi M, Horii Y, Hoshi Y, Hou WS, Hyun HJ, Iijima T, Inami K, Itoh R, Iwasaki M, Iwasaki Y, Kah DH, Kaji H, Kang JH, Kapusta P, Katayama N, Kawasaki T, Kichimi H, Kim HJ, Kim HO, Kim SK, Kim YI, Kim YJ, Kinoshita K, Ko BR, Korpar S, Krizan P, Krokovny P, Kuzmin A, Kwon YJ, Kyeong SH, Lange JS, Lee MJ, Lee SE, Lesiak T, Li J, Limosani A, Liu C, Liventsev D, Louvot R, Mandl F, Matyja A, McOnie S, Medvedeva T, Miyabayashi K, Miyata H, Miyazaki Y, Mizuk R, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nishimura K, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okuno S, Ozaki H, Pakhlova G, Park CW, Park H, Park HK, Park KS, Piilonen LE, Rozanska M, Sahoo H, Sakai K, Sakai Y, Schneider O, Schwanda C, Schwartz AJ, Seidl R, Sekiya A, Senyo K, Sevior ME, Shapkin M, Shen CP, Shiu JG, Shwartz B, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Tanaka M, Taylor GN, Teramoto Y, Trabelsi K, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Varner G, Varvell KE, Vervink K, Wang CC, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe Y, Wedd R, Wicht J, Won E, Yabsley BD, Yamashita Y, Yamauchi M, Yuan CZ, Zhang ZP, Zivko T, Zupanc A, Zyukova O. Measurement of the differential branching fraction and forward-backward asymmetry for B --> K(*)l+l-. Phys Rev Lett 2009; 103:171801. [PMID: 19905747 DOI: 10.1103/physrevlett.103.171801] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2009] [Indexed: 05/28/2023]
Abstract
We study B --> K(*)l+l- decays (l = e, mu) based on a data sample of 657 x 10(6) BB pairs collected with the Belle detector at the KEKB e+e- collider. We report the differential branching fraction, isospin asymmetry, K* polarization, and the forward-backward asymmetry (A(FB)) as functions of q2 = M(ll)(2)c2. The fitted A(FB) spectrum exceeds the standard model expectation by 2.7 standard deviations. The measured branching fractions are B(B --> K*l+l-) = (10.7(-1.0)(+1.1) +/- 0.9) x 10(-7) and B(B --> Kl+l-) = (4.8(-0.4)(+0.5) +/- 0.3) x 10(-7), where the first errors are statistical and the second are systematic, with the muon to electron ratios R(K*) = 0.83 +/- 0.17 +/- 0.08 and R(K) = 1.03 +/- 0.19 +/- 0.06.
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Affiliation(s)
- J-T Wei
- Department of Physics, National Taiwan University, Taipei
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Kim YI, Ahn KJ, Chung YA, Kim BS. A new reference line for the brain CT: the tuberculum sellae-occipital protuberance line is parallel to the anterior/posterior commissure line. AJNR Am J Neuroradiol 2009; 30:1704-8. [PMID: 19762457 DOI: 10.3174/ajnr.a1676] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE CT and MR imaging of the brain have diverged reference lines. Modified Talairach anterior/posterior commissure (ACPC) line is widely accepted as the standard for clinical brain MR imaging, while orbitomeatal line (OML) is used for CT. This study sought to determine an appropriate reference line for brain CT parallel to the ACPC line. MATERIALS AND METHODS We measured the angles between the ACPC line and the OML, the line connecting the tuberculum sellae and the internal occipital protuberance (TS-IOP line), and the line connecting the tuberculum sellae and the external occipital protuberance (TS-EOP line) on midsagittal brain MR images of 223 patients. In addition, with the hard palate as the basis, the angles to the ACPC line in the brain MR images and new reference line on the brain CT images from the same patient were measured, and the difference between the 2 angles was calculated in 30 patients. In the same method, the angles to the OML in the brain CT images and the ACPC line on the brain MR images were measured, and their difference was calculated in 30 patients. Then the 2 difference values were compared with verification of the new reference line. RESULTS The angles between the ACPC line and both the TS-IOP line (0.0 degrees +/- 4.0 degrees ) and the TS-EOP line (0.8 degrees +/- 3.2 degrees ) were significantly smaller than the angles between the ACPC line and the OML (-12.6 degrees +/- 4.2 degrees ; P < .05). In actual scanned images, the angle differences between the TS-OP (TS-IOP + TS-EOP) line and the ACPC line (0.3 degrees +/- 4.5 degrees ) were statistically smaller than the angles between the OML and the ACPC line (-6.6 degrees +/- 3.9 degrees ; P < .05). CONCLUSIONS TS-OP lines are nearly parallel to the ACPC line.
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Affiliation(s)
- Y I Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho-gu, Seoul, South Korea
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Ko BR, Won E, Aihara H, Arinstein K, Aushev T, Bakich AM, Balagura V, Barberio E, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chen A, Cheon BG, Cho IS, Choi Y, Drutskoy A, Dungel W, Eidelman S, Gabyshev N, Goldenzweig P, Golob B, Ha H, Haba J, Han BY, Hayasaka K, Hayashii H, Hoshi Y, Hou WS, Hyun HJ, Itoh R, Iwasaki M, Kah DH, Kang JH, Kapusta P, Kawasaki T, Kichimi H, Kim HJ, Kim HO, Kim SK, Kim YI, Kim YJ, Kinoshita K, Korpar S, Krokovny P, Kuzmin A, Kwon YJ, Kyeong SH, Lee MJ, Lee SE, Lesiak T, Li J, Limosani A, Liu C, Liu Y, Liventsev D, Louvot R, Macnaughton J, Mandl F, McOnie S, Medvedeva T, Miyata H, Miyazaki Y, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nishimura K, Nitoh O, Ogawa S, Ohshima T, Okuno S, Ozaki H, Pakhlov P, Pakhlova G, Palka H, Park CW, Park H, Park HK, Park KS, Pestotnik R, Piilonen LE, Sahoo H, Sakai K, Sakai Y, Schneider O, Schwanda C, Sekiya A, Senyo K, Sevior ME, Shapkin M, Shen CP, Shiu JG, Shwartz B, Stanic S, Staric M, Sumiyoshi T, Tanaka M, Taylor GN, Teramoto Y, Trebelsi K, Uehara S, Ueno K, Uglov T, Unno Y, Uno S, Varner G, Varvell KE, Vervink K, Wang CC, Wang CH, Wang P, Wang XL, Watanabe Y, Wedd R, Yabsley BD, Yamashita Y, Zhang ZP, Zhilich V, Zivko T, Zupanc A, Zyukova O. Observation of the doubly cabibbo-suppressed decay D_{s};{+}-->K;{+}K;{+}pi;{-}. Phys Rev Lett 2009; 102:221802. [PMID: 19658854 DOI: 10.1103/physrevlett.102.221802] [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] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Indexed: 05/28/2023]
Abstract
We report the first observation of the doubly Cabibbo-suppressed decay D_{s};{+}-->K;{+}K;{+}pi;{-} using 605 fb;{-1} of data collected with the Belle detector at the KEKB asymmetric-energy e;{+}e;{-} collider. The branching ratio with respect to its Cabibbo-favored counterpart B(D_{s};{+}-->K;{+}K;{+}pi;{-})/B(D_{s};{+}-->K;{+}K;{-}pi;{+}) is (0.229+/-0.028+/-0.012)%, where the first uncertainty is statistical and the second is systematic. We also report a significantly improved measurement of the doubly Cabibbo-suppressed decay D;{+}-->K;{+}pi;{+}pi;{-}, with a branching ratio B(D;{+}-->K;{+}pi;{+}pi;{-})/B(D;{+}-->K;{-}pi;{+}pi;{+})=(0.569+/-0.018+/-0.014)%.
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