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Jin Y, Gao T, Zhao B, Liu Y, Liu C, Qin M. Modeling spatial trends and exchange fluxes of contaminants in agricultural soil under pollution prevention measures. J Environ Manage 2024; 354:120419. [PMID: 38422570 DOI: 10.1016/j.jenvman.2024.120419] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/03/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
Modeling the long-term trends of contaminants in topsoil under controlled measures is critical for sustainable agricultural environmental management. Traditional mass balance equations cannot predict spatial variation and exchange flux of regional soil contaminants for it lacks a method of assigning input-output parameters to each simulated cell. To overcome this limitation, we allocate the estimated source contribution flux to the spatial grid cell in the regional chemical mass balance by integrated positive matrix factorization (P-RCMB) with historical trends quantification. Focusing on Cd and As, which are elements with elevated risks of food intake and volatilization/infiltration, the model is applied to 30 ha of agricultural land near the enterprise. Predictions indicate an additional 13.5% of the soil is contaminated, and approximately 2.57 ha may accrue after 100 years at the site, with an uncertainty range of 0.98-5.3 ha. Clean water irrigation (CWI) reduces contamination expansion by approximately 42%, including approximately 4813 g ha-1 yr-1 net As infiltration, playing a dominant role in preventing the formation of severely contaminated soil. Stop straw return, green fertilizers use, and reduced atmospheric deposition control the exchange flux of Cd (114.9 g ha-1 yr-1) in moderate/slight contamination areas. For the different contaminants' cumulative trends in dryland and paddy fields, achieving a net cumulative flux close to zero in marginally contaminated areas presents a viable approach to optimize current emission standards. if trade-off straw removal and additional fertilizer inputs, a straw return rate of approximately 40% in Cd-contaminated soil will yield overall benefits. This model contributes valuable insights and tools for policymaking in contaminated land sustainable utilization and emission standard optimization.
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Affiliation(s)
- Yuanliang Jin
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
| | - Ting Gao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
| | - Bin Zhao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, PR China; School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - Yizhang Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
| | - Chengshuai Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, PR China
| | - Muhan Qin
- School of Environment, Tsinghua University, Beijing, 100084, PR China
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Zhang K, Wang L, Qin M, Mulder J, Hou D. Mercury reduction by black carbon under dark conditions. Water Res 2023; 242:120241. [PMID: 37392509 DOI: 10.1016/j.watres.2023.120241] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 07/03/2023]
Abstract
An accurate depiction of mercury (Hg) reduction is important to predict Hg biogeochemistry in both aquatic and soil systems. Although the photoreduction of Hg is well documented, reduction in the dark is poorly known and is thus the focus of this work. Black carbon (BC), an important constituent of organic matter in environments, can reduce Hg2+ in dark and oxygen-deficient conditions. Fast removal of Hg2+ in BC/Hg2+ solution was observed, with 4.99-86.88 L mg-1h-1 of the reaction rate constant, which could be ascribed to the combined actions of adsorption and reduction. Meanwhile, slow Hg reduction was obtained, compared to Hg removal, with 0.06-2.16 L mg-1h-1 of the reaction rate constant. Thus, in the initial stage, Hg2+ removal was mainly triggered by adsorption, rather than reduction. Afterward, the adsorbed Hg2+ on black carbon was converted into Hg0. Dissolved black carbon and aromatic CH on particulate black carbon were dominant triggers of Hg reduction for black carbon. During Hg reduction, the intastable intermediate, formed in the complex between aromatic CH and Hg2+, behaved as persistent free radicals, which could be detected by in situ electron paramagnetic resonance. Subsequently, the intastable intermediate was mainly converted into CO on black carbon and Hg0. Corresponding results of the present study highlight the important role of black carbon in the Hg biogeochemical cycle.
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Affiliation(s)
- Kaikai Zhang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Liuwei Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Muhan Qin
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Jan Mulder
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China.
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3
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Angelopoulos V, Zhang XJ, Artemyev AV, Mourenas D, Tsai E, Wilkins C, Runov A, Liu J, Turner DL, Li W, Khurana K, Wirz RE, Sergeev VA, Meng X, Wu J, Hartinger MD, Raita T, Shen Y, An X, Shi X, Bashir MF, Shen X, Gan L, Qin M, Capannolo L, Ma Q, Russell CL, Masongsong EV, Caron R, He I, Iglesias L, Jha S, King J, Kumar S, Le K, Mao J, McDermott A, Nguyen K, Norris A, Palla A, Roosnovo A, Tam J, Xie E, Yap RC, Ye S, Young C, Adair LA, Shaffer C, Chung M, Cruce P, Lawson M, Leneman D, Allen M, Anderson M, Arreola-Zamora M, Artinger J, Asher J, Branchevsky D, Cliffe M, Colton K, Costello C, Depe D, Domae BW, Eldin S, Fitzgibbon L, Flemming A, Frederick DM, Gilbert A, Hesford B, Krieger R, Lian K, McKinney E, Miller JP, Pedersen C, Qu Z, Rozario R, Rubly M, Seaton R, Subramanian A, Sundin SR, Tan A, Thomlinson D, Turner W, Wing G, Wong C, Zarifian A. Energetic Electron Precipitation Driven by Electromagnetic Ion Cyclotron Waves from ELFIN's Low Altitude Perspective. Space Sci Rev 2023; 219:37. [PMID: 37448777 PMCID: PMC10335998 DOI: 10.1007/s11214-023-00984-w] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
We review comprehensive observations of electromagnetic ion cyclotron (EMIC) wave-driven energetic electron precipitation using data collected by the energetic electron detector on the Electron Losses and Fields InvestigatioN (ELFIN) mission, two polar-orbiting low-altitude spinning CubeSats, measuring 50-5000 keV electrons with good pitch-angle and energy resolution. EMIC wave-driven precipitation exhibits a distinct signature in energy-spectrograms of the precipitating-to-trapped flux ratio: peaks at >0.5 MeV which are abrupt (bursty) (lasting ∼17 s, or Δ L ∼ 0.56 ) with significant substructure (occasionally down to sub-second timescale). We attribute the bursty nature of the precipitation to the spatial extent and structuredness of the wave field at the equator. Multiple ELFIN passes over the same MLT sector allow us to study the spatial and temporal evolution of the EMIC wave - electron interaction region. Case studies employing conjugate ground-based or equatorial observations of the EMIC waves reveal that the energy of moderate and strong precipitation at ELFIN approximately agrees with theoretical expectations for cyclotron resonant interactions in a cold plasma. Using multiple years of ELFIN data uniformly distributed in local time, we assemble a statistical database of ∼50 events of strong EMIC wave-driven precipitation. Most reside at L ∼ 5 - 7 at dusk, while a smaller subset exists at L ∼ 8 - 12 at post-midnight. The energies of the peak-precipitation ratio and of the half-peak precipitation ratio (our proxy for the minimum resonance energy) exhibit an L -shell dependence in good agreement with theoretical estimates based on prior statistical observations of EMIC wave power spectra. The precipitation ratio's spectral shape for the most intense events has an exponential falloff away from the peak (i.e., on either side of ∼ 1.45 MeV). It too agrees well with quasi-linear diffusion theory based on prior statistics of wave spectra. It should be noted though that this diffusive treatment likely includes effects from nonlinear resonant interactions (especially at high energies) and nonresonant effects from sharp wave packet edges (at low energies). Sub-MeV electron precipitation observed concurrently with strong EMIC wave-driven >1 MeV precipitation has a spectral shape that is consistent with efficient pitch-angle scattering down to ∼ 200-300 keV by much less intense higher frequency EMIC waves at dusk (where such waves are most frequent). At ∼100 keV, whistler-mode chorus may be implicated in concurrent precipitation. These results confirm the critical role of EMIC waves in driving relativistic electron losses. Nonlinear effects may abound and require further investigation.
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Affiliation(s)
- V. Angelopoulos
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X.-J. Zhang
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: University of Texas at Dallas, Richardson, TX 75080 USA
| | - A. V. Artemyev
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | | | - E. Tsai
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - C. Wilkins
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - A. Runov
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - J. Liu
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Atmospheric and Oceanic Sciences Departments, University of California, Los Angeles, CA USA
| | - D. L. Turner
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland USA
| | - W. Li
- Atmospheric and Oceanic Sciences Departments, University of California, Los Angeles, CA USA
| | - K. Khurana
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - R. E. Wirz
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: School of Mechanical, Industrial, and Manufacturing Engineering, Oregon State University, Corvallis, OR 97331 USA
| | - V. A. Sergeev
- University of St. Petersburg, St. Petersburg, Russia
| | - X. Meng
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - J. Wu
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - M. D. Hartinger
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Space Science Institute, Boulder, CO 80301 USA
| | - T. Raita
- Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland
| | - Y. Shen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X. An
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X. Shi
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - M. F. Bashir
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - X. Shen
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - L. Gan
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - M. Qin
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - L. Capannolo
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - Q. Ma
- Department of Astronomy and Center for Space Physics, Boston University, Boston, MA USA
| | - C. L. Russell
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - E. V. Masongsong
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - R. Caron
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - I. He
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Materials Science and Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - L. Iglesias
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Deloitte Consulting, New York, NY 10112 USA
| | - S. Jha
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Microsoft, Redmond, WA 98052 USA
| | - J. King
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - S. Kumar
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Astronomy and Astrophysics, The University of Chicago, Chicago, IL 60637 USA
| | - K. Le
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Materials Science and Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - J. Mao
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Raybeam, Inc., Mountain View, CA 94041 USA
| | - A. McDermott
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - K. Nguyen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
| | - A. Norris
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - A. Palla
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Reliable Robotics Corporation, Mountain View, CA 94043 USA
| | - A. Roosnovo
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Los Alamos National Laboratory, Los Alamos, NM 87545 USA
| | - J. Tam
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - E. Xie
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Deloitte Consulting, New York, NY 10112 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - R. C. Yap
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mathematics Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Planet Labs, PBC, San Francisco, CA 94107 USA
| | - S. Ye
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - C. Young
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Microsoft, Redmond, WA 98052 USA
| | - L. A. Adair
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: KSAT, Inc., Denver, CO 80231 USA
| | - C. Shaffer
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Tyvak Nano-Satellite Systems, Inc., Irvine, CA 92618 USA
| | - M. Chung
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - P. Cruce
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Apple, Cupertino, CA 95014 USA
| | - M. Lawson
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - D. Leneman
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - M. Allen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Zipline International, South San Francisco, CA 94080 USA
| | - M. Anderson
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mathematics Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Lucid Motors, Newark, CA 94560 USA
| | - M. Arreola-Zamora
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - J. Artinger
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: College of Engineering and Computer Science, California State University, Fullerton, Fullerton, CA 92831 USA
| | - J. Asher
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
| | - D. Branchevsky
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - M. Cliffe
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - K. Colton
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mathematics Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Planet Labs, PBC, San Francisco, CA 94107 USA
| | - C. Costello
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Heliogen, Pasadena, CA 91103 USA
| | - D. Depe
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Argo AI, LLC, Pittsburgh, PA 15222 USA
| | - B. W. Domae
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - S. Eldin
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Microsoft, Redmond, WA 98052 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - L. Fitzgibbon
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Terran Orbital, Irvine, CA 92618 USA
| | - A. Flemming
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - D. M. Frederick
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Millenium Space Systems, El Segundo, CA 90245 USA
| | - A. Gilbert
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Electrical Engineering, Stanford University, Stanford, CA 94305 USA
| | - B. Hesford
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - R. Krieger
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Materials Science and Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Mercedes-Benz Research and Development North America, Long Beach, CA 90810 USA
| | - K. Lian
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
| | - E. McKinney
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Geosyntec Consultants, Inc., Costa Mesa, CA 92626 USA
| | - J. P. Miller
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Juniper Networks Sunnyvale, California, 94089 USA
| | - C. Pedersen
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - Z. Qu
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Niantic Inc., San Francisco, CA 94111 USA
| | - R. Rozario
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
| | - M. Rubly
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Teledyne Scientific and Imaging, Thousand Oaks, CA 91360 USA
| | - R. Seaton
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - A. Subramanian
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - S. R. Sundin
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Naval Surface Warfare Center Corona Division, Norco, CA 92860 USA
| | - A. Tan
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Epirus Inc., Torrance, CA 90501 USA
| | - D. Thomlinson
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: The Aerospace Corporation, El Segundo, CA 90245 USA
| | - W. Turner
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Astronomy, Ohio State University, Columbus, OH 43210 USA
| | - G. Wing
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Present Address: Amazon, Seattle, WA 98109 USA
| | - C. Wong
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Department of Radiology, University of California, San Francisco, San Francisco, CA 94143 USA
| | - A. Zarifian
- Earth, Planetary, and Space Sciences Department, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA 90095 USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
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Qin M, Jin Y, Peng T, Zhao B, Hou D. Heavy metal pollution in Mongolian-Manchurian grassland soil and effect of long-range dust transport by wind. Environ Int 2023; 177:108019. [PMID: 37301047 DOI: 10.1016/j.envint.2023.108019] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023]
Abstract
Grasslands provide a range of valuable ecosystem services, but they are also particularly fragile ecosystems easily threatened by human activities, such as long-term open-pit mining and related industrial activities. In grassland area, dust containing heavy metal(loid)s generated by mines may further migrate to remote places, but few studies have focused on the long-range transport of contaminants as an important pollution source. In the present study, one of the largest and most intact grassland ecosystems, the Mongolian-Manchurian steppe, was selected to investigate its pollution status and track potential sources. A total of 150 soil samples were collected to explore reginal distribution of nine heavy metal(loid)s that has potential risk in grassland. We conducted a combined multi-variant analysis of positive matrix factorization (PMF) and machine learning, which foregrounded the source of long-range transport of contaminants and inspired the hypothesis of a novel stochastic model to describe contaminants distribution. Results showed four different sources accounting for 44.44% (parent material), 20.28% (atmospheric deposition), 20.39% (farming), and 14.89% (transportation) of the total concentration, respectively. Factor 2 indicated that coal surface mining lead to a significant enrichment of As and Se with their concentration far above the global average level, which was different from other reported grassland areas. Machine learning results further confirmed that atmospheric and topographic features were their contamination controlling factors. The model results proposed that As, Se and Cu released by surface mining will be transported over long distance under prevailing monsoon, until finally deposited in the windward slope of mountain due to terrain obstruction. The long-range transport by wind and deposition of contaminants may be a prevailing phenomenon in temperate grassland, making it a pollution source that cannot be ignored. Evidence from this study reveals the urgency of precautions for fragile grassland ecosystems around industrial areas and provides a basis for its management and risk control policies.
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Affiliation(s)
- Muhan Qin
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yuanliang Jin
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Tianyue Peng
- School of Environment, Tsinghua University, Beijing 100084, China; Key Laboratory of Marine Mineral Resources, Ministry of Natural Resources, Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510075, China
| | - Bin Zhao
- School of Environment, Tsinghua University, Beijing 100084, China; Guangdong Institute of Eco-environmental Science & Technology, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangzhou 510650, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China.
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Zhang K, Qin M, Kao CM, Deng J, Guo J, Guo Q, Hu J, Lin WH. Permanganate activation by glucose-derived carbonaceous materials for highly efficient degradation of phenol and p-nitrophenol: Formation of hydroxyl radicals and multiple roles of carbonaceous materials. Chemosphere 2023; 334:138859. [PMID: 37169093 DOI: 10.1016/j.chemosphere.2023.138859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
Owing to its inertness toward refractory organic pollutants and the release of Mn2+, the use of permanganate was limited in soil and groundwater remediation. The present study proposed an improvement strategy based on glucose-derived carbonaceous materials, which enhanced the potential of permanganate degrading organic pollutants. The glucose-derived carbonaceous material with 1000 °C charring temperature was named C1000, which was exploited in activating KMnO4 for the elimination of refractory organic contaminants. The addition of C1000 in the KMnO4 system triggered the degradation of refractory p-nitrophenol and quicken phenol degradation. Unlike the detection of Mn(III) species in a solo KMnO4 system, the presence of C1000 facilitated the formation of •OH in the KMnO4 system, which was confirmed by the use of quenchers such as methanol, benzoic acid, tertiary butanol, and carbonate. Additionally, the glucose-derived carbonaceous material played multiple roles in improving the performance of permanganate, including the enrichment of organic pollutants, donation of electrons to permanganate, and acting as an electron shuttle to facilitate the oxidation of organic pollutants by permanganate. The study's novel findings have the potential to expand the use of permanganate in the remediation of organic pollutants.
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Affiliation(s)
- Kaikai Zhang
- School of Environment, Tsinghua University, Beijing, China
| | - Muhan Qin
- School of Environment, Tsinghua University, Beijing, China
| | - Chih-Ming Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University Kaohsiung, Taiwan
| | - Jiayu Deng
- School of Environment, Tsinghua University, Beijing, China
| | - Jing Guo
- School of Environment, Tsinghua University, Beijing, China
| | - Qiong Guo
- School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, China
| | - Jing Hu
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Wei-Han Lin
- School of Environment, Tsinghua University, Beijing, China.
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Qin M, Tao JR, Liu ZJ, Hu WY, Yan PY, Wang R, Zhang Y, Xu GJ. [Association study between the KCNE family gene polymorphisms of potassium channel gene and the susceptibility of atrial fibrillation]. Zhonghua Yi Xue Za Zhi 2022; 102:3026-3032. [PMID: 36229204 DOI: 10.3760/cma.j.cn112137-20220215-00314] [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: 06/16/2023]
Abstract
Objective: To investigate the relationship between KCNE family gene polymorphisms of potassium channel gene and the susceptibility of atrial fibrillation (AF). Methods: In the case-control study, a total of 648 subjects were studied, of which 338 patients with atrial fibrillation were selected from the Department of Cardiovascular Medicine, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine from January 2019 to December 2019, and 310 healthy people were selected from the physical examination population during the same period. DNA sequencing technology and polymerase chain reaction (PCR) were used to detect the genotype and allele frequency of rs1805127 of KCNE1, rs9984281 of KCNE2, rs9516, rs626930 of KCNE3 and rs12621643 of KCNE4. Results: The ages of subjects in atrial fibrillation group and control group were (69±13) and (73±8) years, respectively (P=0.077). Men subjects accounted for 57.70% (195 men) and 40.00% (124 men) in the two groups, respectively (P=0.092). The distribution frequencies of the allele C at rs1805127 of gene KCNE1, the allele A at rs9984281 of gene KCNE2 and the allele G at rs12621643 of gene KCNE4 were significantly different between groups (P<0.05). After adjustment for sex, smoking, hypertension, cardiac insufficiency and other factors, it was found that the increase in the frequency of the above three loci would increase the risk of atrial fibrillation (rs1805127 OR=7.064, 95%CI:1.559-31.997; rs9984281 OR=4.210, 95%CI:1.118-15.850; rs12621643 OR=2.679, 95%CI:1.025-6.998). Conclusion: The rs1805127 of KCNE1, the rs9984281 of KCNE2,the rs12621643 of KCNE4 were significantly associated with the susceptibility to atrial fibrillation.
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Affiliation(s)
- M Qin
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - J R Tao
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Z J Liu
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - W Y Hu
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - P Y Yan
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - R Wang
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Y Zhang
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - G J Xu
- Department of Cardiology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
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Tran T, Qin M, Agak G, Teles R, Baugh A, To T, Kim J. 569 The role of siglecs in acne pathogenesis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.579] [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: 10/17/2022]
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Qin M. [Interpretation of the International Association of Dental Traumatology guidelines for the management of traumatic dental injuries (2020)]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:833-839. [PMID: 34496530 DOI: 10.3760/cma.j.cn112144-20210726-00340] [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: 11/05/2022]
Abstract
An update version of the International Association of Dental Traumatology (IADT) guidelines for the management of traumatic dental injuries has been released in June 2020 (http://www.dentaltraumaguide.org). In this current revision, IADT has put forward a "core outcome set" (COS) for the diagnosis and treatment of dental trauma both in children and adults. The COS was developed and underpinned by a systematic review of the outcomes in the literature of dental trauma treatment. An outcome that was relevant to all traumatic dental injuries (TDI) was identified as "generic outcome" and those related only to one or more particular TDI were then included as "injury-specific outcomes". The aims of the present article are to help the dental clinicians in learning the latest version of the guideline so that they may quickly and accurately grasp the essence of the updated content and to assist them to choose the optimized treatment plan after judging and evaluating the specific clinical circumstances so as to maximize the chance of a favorable outcome.
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Affiliation(s)
- M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Shi WH, Wang DD, Tang ZW, Xia B, Qin M, Wang YY. [Occlusal contact of primary dentition at intercuspal position in children with individual normal occlusion]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:873-879. [PMID: 34496535 DOI: 10.3760/cma.j.cn112144-20210514-00237] [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: 11/05/2022]
Abstract
Objective: To record occlusal contact of primary dentition at maximal intercuspal position in children with individual normal occlusion. Methods: A total of 57 children were recruited from patients of the Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology. Inclusion criteria were that the subjects were 3-5 years old with no visually detectable caries or pupal and periapical diseases, had complete primary dentition, had individual normal occlusion, had normal function of craniofacial system, were medically healthy, could cooperate with sampling and had obtained written informed consent from the parents or guardians. Finally, forty-seven children aged 3 to 5 years old were enrolled, including 24 males and 23 females. The age, height and weight of all subjects were (4.1±0.7) years old (ranging 3.0-5.8 years old), (103.7±7.2) cm (ranging 90-120 cm) and (17.1±2.5) kg (ranging 12.5-22.5 kg), respectively. Occlusal abilities such as occlusal contact area, average bite pressure, maximum bite pressure, maximum bite force and occlusal balance were measured with Dental Prescale Ⅱ system. Results: Maximum bite force and occlusal contact area at intercuspal position in children with primary dentition were (567.40±223.84) N (ranging 226.7-1 154.6 N) and (18.56±6.54) mm2 (ranging 8.4-41.2 mm2), respectively. There was a significantly strong correlation between maximum bite force and occlusal contact area (r=0.954, P<0.01). Height and weight of children were also positively correlated with their maximum bite force (r=0.397, P=0.022 and r=0.453, P=0.008, respectively). Maximum occlusal bite force and contact occlusal area of boys [(651.80±224.34) N and (20.77±6.97) mm2] were significantly higher and larger than those of girls [(479.34±190.45) N and (16.25±5.27) mm2] (P<0.05). Thirty-two of all 47 children had one occlusal contact point with maximum bite pressure, mostly locating within the primary molar region. Bite forces of anterior and posterior teeth of primary dentition were (124.12±56.99) N and (450.11±205.09) N, respectively, about (21.82±11.40)% and (71.80±21.35)% of maximum bite force of the whole primary dentition. All of the occlusal balance points located in posterior teeth regions. Occlusal contacts were observed at both anterior and posterior teeth of primary dentition with individual normal occlusion. Conclusions: There was a great variation of maximum bite forces of primary dentitions at intercuspal position of children with individual normal occlusion. Maximum bite force of primary dentition was significantly correlated with occlusal contact area, height and weight of children. Occlusal contact points with maximum bite pressure and occlusal bite balance points of primary dentitions mostly located in primary molar regions.
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Affiliation(s)
- W H Shi
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - D D Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Z W Tang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - B Xia
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Y Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Jin Y, Wang L, Song Y, Zhu J, Qin M, Wu L, Hu P, Li F, Fang L, Chen C, Hou D. Integrated Life Cycle Assessment for Sustainable Remediation of Contaminated Agricultural Soil in China. Environ Sci Technol 2021; 55:12032-12042. [PMID: 34372658 DOI: 10.1021/acs.est.1c02535] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Agricultural land degradation is posing a serious threat to global food security. Restoration of the degraded land has traditionally been viewed as an inherently sustainable practice; however, restoration processes render consequential environmental impacts which could potentially exceed the benefit of restoration itself. In the present study, an integrated life cycle assessment analysis was conducted to evaluate life cycle primary, secondary, and tertiary impacts associated with the restoration of the contaminated agricultural land. The results demonstrated the importance of including spatially differentiated impacts associated with managing the land and growing crops. Comparing four risk management scenarios at a contaminated field in Southern China, it was found that the primary and secondary impacts followed the order of no action > chemical stabilization > phytoextraction > alternative planting. However, when tertiary impacts were taken into account, alternative planting rendered much higher footprint in comparison with phytoextraction and chemical stabilization, which provides evidence against an emerging notion held by some policy makers. Furthermore, assuming that the loss of the rice paddy field in Southern China is compensated by the deforested land in the Amazon rainforest, the total global environmental impact would far exceed that of no action, resulting in 687 ton CO2-e ha-1 of climate change impact. Overall, the present study provides new research findings to support more holistic policy making and also sheds lights on the future development of various restoration technologies.
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Affiliation(s)
- Yuanliang Jin
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Liuwei Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yinan Song
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Jin Zhu
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Muhan Qin
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Longhua Wu
- Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China
| | - Pengjie Hu
- Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China
| | - Fangbai Li
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China
| | - Liping Fang
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China
| | - Chang Chen
- College of Resource and Environment, Huazhong Agricultural Univeristy, Wuhan 430070, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China
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Wu YL, Zhou Q, Chen M, Jiang O, Hu D, Lin Q, Wu G, Cui J, Chang J, Cheng Y, Huang C, Liu A, Cui N, Wang J, Wang Q, Qin M, Zhang R, Yang J. LBA43 GEMSTONE-301: A randomized, double-blind, placebo-controlled, phase III study of sugemalimab in patients with unresectable stage III non-small cell lung cancer (NSCLC) who had not progressed after concurrent or sequential chemoradiotherapy (CRT). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Qin M, Wang HP, Song B, Sun YL, Wang DY, Chen M, Shi HX, Zhang H, Li ZJ. [Relationship between insulin resistance, serum VCAM-1, FGF19, IGF-1 and colorectal polyps]. Zhonghua Zhong Liu Za Zhi 2021; 43:553-562. [PMID: 34034475 DOI: 10.3760/cma.j.cn112152-20210219-00146] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the relationship between insulin resistance, glucose and lipid metabolism related molecules and colorectal polyps. Methods: A total of 262 healthy people who underwent colonoscopy in Shandong cancer hospital from June 2019 to September 2020 were selected. The levels of serum vascular cell adhesion molecule-1 (VCAM-1), fibroblast growth factor 19 (FGF19), insulin like growth factor (IGF-1), fasting blood glucose and fasting blood insulin were detected by enzyme-linked immunosorbent assay (ELISA). Insulin resistance index (HOMA-IR) was calculated, and the influencing factors of occurrence, pathological type, size and number of polyps were analyzed. Results: Among 262 cases, 116 cases were polyp free, 113 cases were adenomatous polyp and 33 cases were inflammatory polyp. HOMA-IR, VCAM-1 and FGF19 in polyp group were 2.904±1.754, (334.415±139.573) ng/ml and (135.865±98.470) pg/ml, respectively, which were higher than 2.369±1.306, (302.480±99.946) ng/ml and(110.694±76.044) ng/ml in non-polyp group, respectively (P<0.05). Multivariate Logistic regression analysis showed that the gender (OR=4.269, 95%CI: 1.963-9.405) and FGF19 (77.0-131.4 pg/ml: OR=2.385, 95%CI: 1.155-4.926) were independent factors of colorectal polyps. The gender (OR=3.799, 95%CI: 1.650-8.748) and FGF19 (77.0-131.4 pg/ml: OR=2.290, 95%CI: 1.072-4.891) were independent factors of colorectal adenomatous polyps. The gender(OR=6.725, 95%CI: 1.853-24.410) and fasting plasma glucose (≥6.5 mmol/L: OR=0.047, 95%CI: 0.009-0.245) were independent factors of colorectal inflammatory polyps. The gender (OR=3.539, 95% CI: 1.293-9.689) was an independent factor for the occurrence of single polyp. The gender (OR=5.063, 95% CI: 2.048-12.515), FGF19 (77.0-131.4 pg/ml: OR=2.502, 95%CI: 1.102-5.681), fasting plasma glucose (≥6.5 mmol/L: OR=0.282, 95%CI: 0.095-0.839) were independent factors of multiple polyps. The gender (OR=3.416, 95% CI: 1.134-10.289) and fasting insulin (≥9.4 μU/ml: OR=9.480, 95% CI: 1.485-60.521) were independent risk factors for colorectal polyps<0.5 cm. The gender (OR=3.151, 95%CI: 1.244-7.984) and fasting plasma glucose (≥6.5 mmol/L: OR=0.310, 95%CI: 0.102-0.941) were independent risk factors for colorectal polyps with the size of 0.5-0.9 cm. The gender (OR=22.649, 95%CI: 4.154-123.485), age (55 to 64 years old: OR=4.473, 95%CI: 1.070-18.704; ≥65 years old: OR=5.815, 95%CI: 1.300-26.009), BMI (≥28 kg/m(2): OR=5.310, 95%CI: 1.224-23.032) and FGF19 (77.0-131.4 pg/ml: OR=7.474, 95%CI: 1.903-29.351) were independent factors for colorectal polyps with size ≥ 1.0 cm. Gender stratification analysis showed that FGF19 was an independent factor for the occurrence of male polyps (77.0-131.4 pg/ml: OR=6.109, 95%CI: 1.688-22.104) and adenomas (77.0-131.4 pg/ml: OR=6.401, 95%CI: 1.717-23.864). The age (55 to 64 years old: OR=3.783, 95%CI: 1.052-13.611) and VCAM-1 (≥352.8 ng/ml: OR=4.341, 95%CI: 1.142-16.493) were independent risk factors of female polyps. The age (55 to 64 years old: OR=5.743, 95%CI: 1.205-27.362, ≥65 years old: OR=6.885, 95%CI: 1.143-41.467), VCAM-1 (≥352.8 ng/ml: OR=6.313, 95%CI: 1.415-28.159) and IGF-1 (≥7.6 ng/ml: OR=5.621, 95%CI: 1.069-29.543) were independent factors of female adenoma. Conclusions: The occurrences of colorectal polyps and adenomatous polyps are related to insulin resistance and glucose and lipid metabolism. Serum FGF19 is an independent influencing factor for the occurrence of colorectal polyps and adenomatous polyps, and is a potential serological diagnostic marker and therapeutic target for colorectal polyps and adenomatous polyps.
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Affiliation(s)
- M Qin
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - H P Wang
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - B Song
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Y L Sun
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - D Y Wang
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - M Chen
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - H X Shi
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - H Zhang
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Z J Li
- Department of Endoscope, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
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Abstract
PURPOSE Although neglected by science for a long time, the sense of olfaction has received increasing attention from research areas including psychology, neuroscience, clinical medicine and nutrition. With the rise of psychophysical and neuroimaging re- search into olfaction, psychometric tools (e.g. questionnaires and scales) are the basis for the quantitative exploration of inter-in- dividual variability regarding olfactory related responses. The current systematic review is to summarize existing olfaction related questionnaires and/or scales. METHODS Peer-reviewed literature on scales and questionnaires related to perception of odors were searched from online databa- ses (PubMed, Web of Science and PsycINFO). Twenty-one articles that meet the following criteria were included in the review: "human species", "physical odor stimuli" and "describing the original development of the tool" and "specific focus on olfaction or odor related responses or behaviors". The psychometric properties, advantages and possible disadvantages were discussed. RESULTS Existing psychometric measures focus on various aspects of olfactory related responses and behaviors, including af- fective experiences of odor perception, awareness and attitude towards olfaction, olfactory function and the quality of life change due to olfactory dysfunction, and the ability to create vivid mental odor images. While most of them have been tested to have good reliability and validity, some were relatively time-consuming due to the number of questionnaire items. Besides, although many measures have been used in clinical populations, few have provided information on the predictive validity regarding effecti- veness of clinical intervention on changes of certain responses or behaviors. SUMMARY The current review provides an overview of olfactory related questionnaires and scales, highlighting the emotional and affective impact of olfaction and the impact on quality of life due to olfactory dysfunction. With growing interest in olfaction as an important sense, the development and use of psychometrically sound measurements in conjunction with objective assess- ments will advance our understanding of human olfaction and olfactory dysfunction. The review provides a guide for researchers and clinicians alike to select olfactory scales suitable for olfactory research with different experimental purposes and specific samples.
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Affiliation(s)
- P Han
- The Key laboratory of Cognition and Personality, Ministry of Education, Chongqing, China; Faculty of Psychology, Southwest University, Chongqing, China
| | - T Su
- The Key laboratory of Cognition and Personality, Ministry of Education, Chongqing, China
| | - M Qin
- The Key laboratory of Cognition and Personality, Ministry of Education, Chongqing, China
| | - H Chen
- The Key laboratory of Cognition and Personality, Ministry of Education, Chongqing, China; Faculty of Psychology, Southwest University, Chongqing, China
| | - T Hummel
- Interdisciplinary Centre Smell and Taste, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
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Wang L, Wu WM, Bolan NS, Tsang DCW, Li Y, Qin M, Hou D. Environmental fate, toxicity and risk management strategies of nanoplastics in the environment: Current status and future perspectives. J Hazard Mater 2021; 401:123415. [PMID: 32763705 PMCID: PMC7345412 DOI: 10.1016/j.jhazmat.2020.123415] [Citation(s) in RCA: 232] [Impact Index Per Article: 77.3] [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: 04/28/2020] [Revised: 06/23/2020] [Accepted: 07/04/2020] [Indexed: 05/19/2023]
Abstract
Tiny plastic particles considered as emerging contaminants have attracted considerable interest in the last few years. Mechanical abrasion, photochemical oxidation and biological degradation of larger plastic debris result in the formation of microplastics (MPs, 1 μm to 5 mm) and nanoplastics (NPs, 1 nm to 1000 nm). Compared with MPs, the environmental fate, ecosystem toxicity and potential risks associated with NPs have so far been less explored. This review provides a state-of-the-art overview of current research on NPs with focus on currently less-investigated fields, such as the environmental fate in agroecosystems, migration in porous media, weathering, and toxic effects on plants. The co-transport of NPs with organic contaminants and heavy metals threaten human health and ecosystems. Furthermore, NPs may serve as a novel habitat for microbial colonization, and may act as carriers for pathogens (i.e., bacteria and viruses). An integrated framework is proposed to better understand the interrelationships between NPs, ecosystems and the human society. In order to fully understand the sources and sinks of NPs, more studies should focus on the total environment, including freshwater, ocean, groundwater, soil and air, and more attempts should be made to explore the aging and aggregation of NPs in environmentally relevant conditions. Considering the fact that naturally-weathered plastic debris may have distinct physicochemical characteristics, future studies should explore the environmental behavior of naturally-aged NPs rather than synthetic polystyrene nanobeads.
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Affiliation(s)
- Liuwei Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Wei-Min Wu
- Department of Civil and Environmental Engineering, William & Cloy Codiga Resource Recovery Center, Center for Sustainable Development & Global Competitiveness, Stanford University, Stanford, CA 94305-4020, USA
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yang Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Muhan Qin
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China.
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Pham A, Qin M, To T, Baugh A, Kim J. 041 miR-146a regulates the interleukin-17 inflammatory response to Cutibacterium acnes in human peripheral blood mononuclear cells. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.043] [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: 10/24/2022]
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16
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Qin M, Gong CX. [A case of 45, XO male with disorder of sexual development]. Zhonghua Er Ke Za Zhi 2020; 58:243-244. [PMID: 32135601 DOI: 10.3760/cma.j.issn.0578-1310.2020.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- M Qin
- Department of Endocrinology, Genetics and Metabolism and Adolescent Medicine, Beijing Children's Hospital, the Capital Medical University, National Center for Children's Health, Beijing 100045 China
| | - C X Gong
- Department of Endocrinology, Genetics and Metabolism and Adolescent Medicine, Beijing Children's Hospital, the Capital Medical University, National Center for Children's Health, Beijing 100045 China
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Agak G, Ceja-Garcia N, Dang P, Shah D, Teles R, Mouton A, Morselli M, Qin M, Kim J, Pellegrini M, Modlin R. 070 Antimicrobial Th17CTL targeting both Gram-positive and Gram-negative bacteria. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Ouyang K, Rivas A, Baugh A, Qin M, Agak G, Kim J. 510 Distinguishing type II from type I cutibacterium acnes: an efficient method for studying c. acnes interaction. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Tran P, Evron E, Qin M, Dohil I, Baugh A, Agak G, Kim J. 452 Cutibacterium acnes carbohydrates from multiple phylotypes induce IL-17: A potential ligand implicated in acne disease pathogenesis. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Scassellati B, Boccanfuso L, Huang CM, Mademtzi M, Qin M, Salomons N, Ventola P, Shic F. Improving social skills in children with ASD using a long-term, in-home social robot. Sci Robot 2018; 3:eaat7544. [PMID: 33141724 PMCID: PMC10957097 DOI: 10.1126/scirobotics.aat7544] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 07/30/2018] [Indexed: 02/17/2024]
Abstract
Social robots can offer tremendous possibilities for autism spectrum disorder (ASD) interventions. To date, most studies with this population have used short, isolated encounters in controlled laboratory settings. Our study focused on a 1-month, home-based intervention for increasing social communication skills of 12 children with ASD between 6 and 12 years old using an autonomous social robot. The children engaged in a triadic interaction with a caregiver and the robot for 30 min every day to complete activities on emotional storytelling, perspective-taking, and sequencing. The robot encouraged engagement, adapted the difficulty of the activities to the child's past performance, and modeled positive social skills. The system maintained engagement over the 1-month deployment, and children showed improvement on joint attention skills with adults when not in the presence of the robot. These results were also consistent with caregiver questionnaires. Caregivers reported less prompting over time and overall increased communication.
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Affiliation(s)
- B. Scassellati
- Department of Computer Science, Yale University, New Haven, CT 06520
| | - L. Boccanfuso
- Child Study Center, Yale School of Medicine, New Haven, CT 06520
| | - C.-M. Huang
- Department of Computer Science, Yale University, New Haven, CT 06520
| | - M. Mademtzi
- Child Study Center, Yale School of Medicine, New Haven, CT 06520
| | - M. Qin
- Department of Computer Science, Yale University, New Haven, CT 06520
| | - N. Salomons
- Department of Computer Science, Yale University, New Haven, CT 06520
| | - P. Ventola
- Child Study Center, Yale School of Medicine, New Haven, CT 06520
| | - F. Shic
- Child Study Center, Yale School of Medicine, New Haven, CT 06520
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21
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Chen L, Fang JJ, Meng G, Xiao SB, Qin M, Wang Y. [Correlation between Movement Distance of Small Intestinal Contents and Survival Time in Female Rats after Feeding]. Fa Yi Xue Za Zhi 2018; 34:233-235. [PMID: 30051658 DOI: 10.12116/j.issn.1004-5619.2018.03.003] [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] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To study the correlation between the movement distance of small intestinal contents and survival time in female SD rat models after one-time satiation, and to evaluate its application value for postmortem interval estimation. METHODS Adult female SD rats were randomly divided into postprandial groups (1, 2, 3, 4 and 5 h after feeding) and control group. The postprandial groups were fed for 1 h, meanwhile control group was kept fasting. All rats were sacrificed at the given time. The contents in stomach and small intestine were observed, described, compared and photographed, and the movement distance of small intestinal contents was measured. The data of postprandial groups were analysed by one-way analysis of variance. RESULTS The stomach and duodenum of control group were empty with a little thin and yellow small intestinal liquid. The gastral cavities of 1 h postprandial group were full of undigested food. The evolutionary changes of character, colour and content were observed in the gastric and small intestinal contents of other postprandial groups. The movement distance of intestinal contents increased while the empty part decreased gradually. The differences among the postprandial groups were statistically significant (P<0.05). CONCLUSIONS After a 24 h fasting with free drinking and the following 1 h feeding, an ideal animal model can be established successfully on female SD rats, which can provide an experimental basis for postmortem interval estimation based on the changes of small intestinal contents in forensic practice.
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Affiliation(s)
- L Chen
- Institute of Forensic Science, Department of Anhui Public Security, Hefei 230061, China
| | - J J Fang
- Institute of Forensic Science, Department of Anhui Public Security, Hefei 230061, China
| | - G Meng
- Clinical Pathology Center, the Fourth Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - S B Xiao
- Institute of Forensic Science, Department of Anhui Public Security, Hefei 230061, China
| | - M Qin
- Institute of Forensic Science, Department of Anhui Public Security, Hefei 230061, China
| | - Y Wang
- Clinical Pathology Center, the Fourth Affiliated Hospital of Anhui Medical University, Hefei 230022, China
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Wang X, Wang X, Qin M. [A preliminary study of saliva matrix metalloproteinases (MMP-2 and MMP-9) in children with caries]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:527-531. [PMID: 29930424] [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: 06/08/2023]
Abstract
OBJECTIVE To investigate the correlation between matrix metalloproteinase (MMP)-2/MMP-9 levels and childhood caries, and the saliva levels of MMP-2/MMP-9 among healthy children and those with different degrees of dental caries, both before and after treatment. METHODS In the study, 368 children aged 3 to 5 years were separated into three groups: severe caries group (112 children), mild caries group (98 children) and caries free group (158 children). The children with severe caries were included in treatment group (83 children) after accepting a comprehensive treatment of caries. MMP-2 and MMP-9 levels were determined by enzyme-linked immunosorbent assay (ELISA) and the data were analyzed by the Statistics Package for Social Science (SPSS 13.0). The differences among severe caries group, mild caries group and caries free group were analyzed by SNK-q (Student Newman Keuls). The severe caries group and treatment group were compared by paired t test. The differences between each group were statistically analyzed. RESULTS There was no significant difference of the age and gender composition among severe caries group, mild caries group, caries free group and treatment group. The MMP-2 level of severe caries group [(141.3±32.5) μg/L] was higher than those of mild caries group [(107.5±21.3) μg/L] and caries free group [(102.8±18.5) μg/L] (P<0.05). There was no significant difference between mild caries and caries free group (P>0.05). After analysis of 83 children in the treatment group, the level of MMP-2 [(120.1±24.8) μg/L] was lower than before [(144.6±30.3) μg/L] (P<0.05), but was higher than that of caries free group (P<0.05). The MMP-9 levels of severe caries group [(445.8±68.1) μg/L] and mild caries group [(428.6±59.2) μg/L] were higher than that of caries free group [(385.4±60.6) μg/L] (P<0.05), but the difference between severe caries group and mild caries group was not significant (P>0.05). After analysis of 83 children in the treatment group, the alteration of MMP-9 [(432.2±64.7) μg/L] was not significant either (P>0.05). CONCLUSION The saliva levels of MMP-2 and MMP-9 in children with severe caries were higher than those in caries free children, even if the treatment was implemented, which suggests that the MMP-2 and MMP-9 in saliva might be related to the caries in children.
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Affiliation(s)
- X Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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23
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Li X, Wang X, Wu D, Chen ZB, Wang MX, Gao YX, Gong CX, Qin M. [Interleukin-1β and C-reactive protein level in plasma and gingival crevicular fluid in adolescents with diabetes mellitus]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:538-542. [PMID: 29930426] [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: 06/08/2023]
Abstract
OBJECTIVE Cytokines produced by various cells are strong local mediators of inflammation. Interleukin-1beta (IL-1β) and C-reactive protein (CRP) play essential roles in the development and progression of diabetes mellitus (DM). Thus periodontal diseases could be related to DM via the same mediators of inflammation. To evaluate plasma and gingival crevicular fluid (GCF) levels of IL-1β and CRP in adolescents with DM to further investigate whether DM has an impact on the levels of inflammation factors at an early stage, and to analyze the risk of developing periodontal diseases in adolescents with DM. METHODS A total of 121 adolescents aged from ten to sixteen years were enrolled, 41 adolescents diagnosed with diabetes mellitus were collected in the DM group, and 80 nondiabetic adolescents as the control group. The periodontal indices of each individual were recorded, including plaque index (PLI), modified bleeding index (mBI), probing depth (PD) and attachment loss (AL). GCF and intravenous blood samples were collected, and CRP and IL-1β levels were detected by enzyme-linked immunosorbent assay (ELISA). RESULTS (1) PLI of DM group and control group were 1.23±0.05 and 0.95±0.04 separately, with significant difference (P=0.001). DM group and control group had mBI of 0.80±0.08 and 0.51±0.06 separately, with significant difference (P=0.003). Attachment loss was found in none of the subjects. PDs of DM group and control group were (2.37±0.51) mm and (2.31±0.05) mm separately, and there was no significant difference. (2) CRP in GCF was only detectable in partial of the individuals, with a detectable rate of 22.9% (11/48) in total. The detectable rate of CRP in GCF was significantly higher in DM group (38.5%) than that in control group (4.5%, P=0.006). The plasma level of CRP in DM group [0.23 (0.15, 1.89) mg/L] was higher than that in control group [0.19 (0.12, 4.18) mg/L], but without significance (P=0.776). (3) The plasma levels of IL-1β in DM group and control group were (14.11±0.57) ng/L and (14.71±0.50) ng/L separately, but there was no significance (P=0.456). GCF levels of IL-1β in DM group and control group were (12.91±1.95) μg/L and (17.68±3.07) μg/L, without significant difference (P=0.185). CONCLUSION Periodontitis was not observed in adolescents with DM at an early stage. However, the rising levels of periodontal indices and CRP in GCF, might indicate that adolescents with DM have a higher risk of developing periodontal diseases in the future.
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Affiliation(s)
- X Li
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - D Wu
- Department of Endocrinology, Genetics, and Metabolism, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Z B Chen
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - M X Wang
- Department of Dentistry, Capital Institute of Pediatrics, Beijing 100020, China
| | - Y X Gao
- Department of Dentistry, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - C X Gong
- Department of Endocrinology, Genetics, and Metabolism, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Liu G, Wang X, Qin M, Sun L, Zhu J. A novel splicing mutation of ectodysplasin A gene responsible for hypohidrotic ectodermal dysplasia. Oral Dis 2018; 24:1101-1106. [PMID: 29676859 DOI: 10.1111/odi.12874] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/27/2018] [Accepted: 04/05/2018] [Indexed: 12/20/2022]
Abstract
Hypohidrotic ectodermal dysplasia (HED) is characterized by hypohidrosis, hypodontia, sparse hair, and characteristic facial features. This condition is caused by an ectodysplasin A (EDA) gene mutation. In this study, we examined two HED pedigrees and investigated the molecular genetics of the defect. Direct sequencing analysis revealed a previously unidentified mutation in the EDA splice donor site (c.526 + 1G>A). The function of the mutant EDA gene was predicted through online investigations and subsequently confirmed by splicing analysis in vitro. The mutation resulted in the production of a truncated EDA-A1 protein caused by complete omission of exon 3. This novel functional skipping-splicing EDA mutation was considered to be the cause of HED in the two pedigrees reported here. Our findings, combined with those reported elsewhere, provide an improved understanding of the pathogenic mechanism of HED as well as important information for a genetic diagnosis.
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Affiliation(s)
- G Liu
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - L Sun
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - J Zhu
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
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Agak G, Qin M, Ceja-Garcia N, Ouyang K, Teles R, Mouton A, Morselli M, Kim J, Pellegrini M, Modlin R. 051 Antimicrobial activity of cytolytic Th17 cells targeting propionibacterium acnes. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fang JJ, Qin M, Xiao SB, Chen L, Liu B. [Age Estimation of Adult Living Donor by Pubic MSCT Three-dimensional Reconstruction]. Fa Yi Xue Za Zhi 2018; 34:150-153. [PMID: 29923380 DOI: 10.3969/j.issn.1004-5619.2018.02.009] [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] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Indexed: 06/08/2023]
Abstract
OBJECTIVES To establish a method for the age estimation of adult living donor based on pubic MSCT three-dimensional reconstruction and verify its accuracy and reliability. METHODS The volume rendering (VR) image data of pubic symphysis surface were collected from 300 volunteers aged over 17 years old. According to different age groups, the age estimation of these volunteers was performed by the method and formula of pubic symphysis surface. RESULTS In the 300 volunteers, the difference between biological age and actual age was <1 year in 117 cases, >1-2 years in 178 cases, >2 years in 5 cases. CONCLUSIONS MSCT three-dimensional reconstruction technology of pubic symphysis surface can be used to estimate the age of adult living donor, which can provide a high accurate and reliable result.
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Affiliation(s)
- J J Fang
- Key Laboratory of Forensic Examination and Identification of National Public Security Organs, Institute of Forensic Science of Anhui Public Security Department, Hefei 230061, China
| | - M Qin
- Key Laboratory of Forensic Examination and Identification of National Public Security Organs, Institute of Forensic Science of Anhui Public Security Department, Hefei 230061, China
| | - S B Xiao
- Key Laboratory of Forensic Examination and Identification of National Public Security Organs, Institute of Forensic Science of Anhui Public Security Department, Hefei 230061, China
| | - L Chen
- Key Laboratory of Forensic Examination and Identification of National Public Security Organs, Institute of Forensic Science of Anhui Public Security Department, Hefei 230061, China
| | - B Liu
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
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Abstract
Objective: To analyze the trend of maternal mortality ratio (MMR) and cause of death in Shanghai from 1996 to 2015. Methods: To collect the material about the maternal death and the maternal death audit from 1996 to 2015, and to analyze the MMR, the cause of death and the result of the maternal death audit of Shanghai from 1996 to 2015 retrospectively. Results: (1) The change of MMR: the MMR in Shanghai decreased from 28.84 per 100 000 live births in 1996 to 6.66 per 100 000 live births in 2015. (2) The characteristic of maternal death: the proportion of Shanghai citizens was 27.4%(121/441) and the proportion of migrant women was 72.6%(320/441). The women with advanced maternal age was 8.2% (20/243) since 1996 to 2005, and increased to 16.7% (33/198) since 2006 to 2015. Maternal deaths during pregnancy increased from 27.6%(67/243) in the first 10 years (1996-2005) to 35.4%(70/198) in the recent 10 years (2006-2015) . The intrapartum maternal deaths was 6.2%(15/243) in the first 10 years and in the recent 10 years it was zero. The proportion of postpartum deaths in the first 10 years and in the recent 10 years were 66.3% (161/243) and 64.6%(128/198) respectively. (3) The cause of maternal death: During the recent 10 years, indirect obstetric causes [63.1%(125/198)] was more than direct obstetric causes [36.9% (73/198) ] for the first time. The death causes changed significantly. Postpartum hemorrhage remained the leading cause of maternal deaths, but the specific mortality rate (SMR) of postpartum hemorrhage decreased significantly from 7.42 per 100 000 live births in the first 10 years to 1.51 per 100 000 live births in the recent 10 years. The maternal deaths because of heart disease and cerebrovascular disease rose to the second and the forth reasons. (4) Maternal death audit: the avoidable maternal death ratio decreased from 3.66 per 100 000 live births in the first 10 years to 1.86 per 100 000 live births in the recent 10 years. Conclusions: During the past 20 years, the MMR of Shanghai decreased significantly and was close to the level of developed countries. In recent years, the causes of maternal death become more complicated. With the implementation of the second child policy, women with high risk factors increase, so government investment, policy support should be strengthened to optimize the management.
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Affiliation(s)
- M Qin
- Department of Maternal Health, Shanghai Maternal and Child Health Care Center, Shanghai 200062, China
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Qin M, Rajan A, Shin Y, Ogawa H, Kulkarni R. 815 Evaluating the role of AIM2 expression in melanoma. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Peng CF, Zhao YM, Yang Y, Liu H, Qin M. [Retrospective analysis of pulp revascularization in immature permanent teeth with diffuse pulpitis]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:10-15. [PMID: 28072988 DOI: 10.3760/cma.j.issn.1002-0098.2017.01.003] [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: 06/06/2023]
Abstract
Objective: To evaluate the treatment effectiveness of revascularization in immature permanent teeth with diffuse pulpitis and to provide an alternative approach for the treatment of these teeth. Methods: Clinical and radiographic data were collected from 17 immature permanent teeth which were diagnosed as diffuse pulpitis and with their pulp extirpated at Emergency Department of Peking University School and Hospital of Stomatology. All these teeth were treated using pulp revascularization at Department of Pediatric Dentistry. Clinical success rate was then evaluated based on the clinical and radiographic findings. The increase of root length and dentin wall thickness of the revascularized teeth and the contralateral control teeth were measured and compared according to the preoperative and recall periapical radiographs. Results: The average follow-uptime is (25.8±9.9) months (12-46 months). Totally 13 out of the 17 teeth showed normal clinical and radiographic manifestation and achieved the increasein root length and dentin wall thickness. They met criteria for success treatment. The rest 4 out of the 17 teeth also showed root length and dentin wall thickness increaseand apical foramen closure. However, periapical inflammations were observed during 12 to 36 monthfollow-ups. These cases were recognized as failed. In all the17 teeth, the increase of root length and dentin wall thickness was not significantly different between the revascularized teeth and the contralateral control teeth (P>0.05). Conclusions: Pulp revascularization in young permanent teeth with diffuse pulpitis resulted in similar clinical outcomes in root development and root canal wall formation compared with the contralateral control teeth. However, reinfection might occur during long-term follow-up.
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Affiliation(s)
- C F Peng
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y M Zhao
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Yang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Liu
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Abstract
Charge separation occurs in a pair of tightly coupled chlorophylls at the heart of photosynthetic reaction centers of both plants and bacteria. Recently it has been shown that quantum coherence can, in principle, enhance the efficiency of a solar cell, working like a quantum heat engine. Here, we propose a biological quantum heat engine (BQHE) motivated by Photosystem II reaction center (PSII RC) to describe the charge separation. Our model mainly considers two charge-separation pathways which is more than that typically considered in the published literature. We explore how these cross-couplings increase the current and power of the charge separation and discuss the effects of multiple pathways in terms of current and power. The robustness of the BQHE against the charge recombination in natural PSII RC and dephasing induced by environments is also explored, and extension from two pathways to multiple pathways is made. These results suggest that noise-induced quantum coherence helps to suppress the influence of acceptor-to-donor charge recombination, and besides, nature-mimicking architectures with engineered multiple pathways for charge separations might be better for artificial solar energy devices considering the influence of environments.
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Affiliation(s)
- M Qin
- School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China
| | - H Z Shen
- School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China
| | - X X Yi
- Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun 130024, China
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Quan XY, Qin M, Kang YF, Zhang Y, Zhao YM. [Radiographic and masticatory physiologic evaluation after conservative treatment of condylar fractures in children and adolescents]. Zhonghua Kou Qiang Yi Xue Za Zhi 2016; 51:30-5. [PMID: 26792185 DOI: 10.3760/cma.j.issn.1002-0098.2016.01.008] [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: 11/05/2022]
Abstract
OBJECTIVE To evaluate the developmental and functional outcome of condylar fractures in children and adolescents after conservative treatment. METHODS Eight children and adolescents with unilateral condylar fracture, aged 5-13 were included. A removable occlusal splint, the thickness of which was determined according to the age, the developmental stage of the dentition, the level of the fracture and the degree of dislocation, worn for 1-3 months, and the patients were asked to perform functional exercises. The patients were followed up by clinical observation, panoramic radiograph, temporomandibular joint(TMJ ) cone beam computed tomography(CBCT), and surface electromyography(sEMG) of masticatory muscles (superficial masseter, anterior temporalis, and anterior digastric muscles). Ramus height and body length of mandible were measured on panoramic radiograph. The patients were asked to return for follow-up visits at 1, 3, and 6 months after treatment, and then once a year. The patients underwent clinical examination at each follow-up visit, and radiological examinations at 6 months and then annually. RESULTS All the patients showed clinically satisfactory results. CBCT showed smooth and continuous cortex. Panoramic X-ray revealed that the ramus height was shorter in the fractured side than in the contralateral side, while body length was longer. The mean asymmetry index(AI,x±s) for ramus height and body length were (3.29±2.68)% and (4.01 ± 2.54)%. sEMG showed either hypertension or hypotension in the masticatory muscles of the fractured side and asymmetries were obvious. The mean AI for sEMG activity of the anterior temporalis, masseter, and anterior digastric muscle were masseter: (15.0 ± 16.9)%; anterior temporalis: (21.5 ± 15.9)%; anterior digastric muscles: (11.9 ± 10.7)%. CONCLUSIONS Conservative treatment of condylar fracture in children and adolescents had clinically satisfactory results, while mandibular development was slightly interrupted. Asymmetries of EMG activities of masticatory muscles were obvious. EMG could objectively reveal the functional recovery of condylar fracture in children.
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Affiliation(s)
- X Y Quan
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y F Kang
- Department of Prosthodontics and Center for Oral Function Diagnosis, Treatment and Research, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y Zhang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y M Zhao
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China
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Shen HZ, Qin M, Shao XQ, Yi XX. General response formula and application to topological insulator in quantum open system. Phys Rev E Stat Nonlin Soft Matter Phys 2015; 92:052122. [PMID: 26651662 DOI: 10.1103/physreve.92.052122] [Citation(s) in RCA: 3] [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: 06/30/2015] [Indexed: 06/05/2023]
Abstract
It is well-known that the quantum linear response theory is based on the first-order perturbation theory for a system in thermal equilibrium. Hence, this theory breaks down when the system is in a steady state far from thermal equilibrium and the response up to higher order in perturbation is not negligible. In this paper, we develop a nonlinear response theory for such quantum open system. We first formulate this theory in terms of general susceptibility, after which we apply it to the derivation of Hall conductance for open system at finite temperature. As an example, the Hall conductance of the two-band model is derived. Then we calculate the Hall conductance for a two-dimensional ferromagnetic electron gas and a two-dimensional lattice model. The calculations show that the transition points of topological phase are robust against the environment. Our results provide a promising platform for the coherent manipulation of the nonlinear response in quantum open system, which has potential applications for quantum information processing and statistical physics.
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Affiliation(s)
- H Z Shen
- Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun 130024, China
- School of Physics and Optoelectronic Technology Dalian University of Technology, Dalian 116024, China
| | - M Qin
- Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun 130024, China
- School of Physics and Optoelectronic Technology Dalian University of Technology, Dalian 116024, China
| | - X Q Shao
- Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun 130024, China
| | - X X Yi
- Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun 130024, China
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Chen DL, An XJ, Cui CY, Qin M, Du JX. Clinical analysis on application of color Doppler echocardiographic in cortriatrium diagnosis. Eur Rev Med Pharmacol Sci 2015; 19:3266-3269. [PMID: 26400533] [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: 06/05/2023]
Abstract
OBJECTIVE Discuss the main points of diagnosis of cortriatrium; patient's color Doppler echocardiography (CDE), provide basis for clinical treatment. PATIENTS AND METHODS Inspect 12 cortriatrium cases with CDE, 10 cases with cardiovascular angiography, 12 patients were confirmed by operation. Operations were all carried out under the moderate hypothermia cardiopulmonary bypass with intracardiac correction technique. Abnormal diaphragm in the left a trial was completely removed, and other combined heart malformations were also cured. RESULTS Four cases for II A type, 1 case for II B type, 6 cases for II A type, 1 case for II B type. Among them, there were 7 cases for combined atrial septal defect, 5 cases for ventricular septal defect, 3 cases for patent ductus arteriosus, 6 cases for pulmonary arterial hypertension. Twelve children all survived, deformity correction was satisfactory, and after operation, recovery went on well in 6 months to 3 years. CONCLUSIONS CDE has specific diagnostic value for cortriatrium; thus, it is the optimal method of diagnosing cortriatrium.
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Affiliation(s)
- D-L Chen
- Department of Ultrasonography, Xuzhou Children's Hospital, Xuzhou, Jiangsu, P.R. China.
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Bai J, Qin M, Zhao YM, Huang MW, Ji AP. Chemical removal of necrotic periodontal ligament on delayed replanted teeth by sodium hypochlorite: morphological analysis and microhardness indentation test of cementum. Int Endod J 2015; 49:393-401. [PMID: 26010894 DOI: 10.1111/iej.12467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Accepted: 05/18/2015] [Indexed: 11/28/2022]
Affiliation(s)
- J. Bai
- Department of Oral Emergency; Peking University School and Hospital of Stomatology; Beijing China
| | - M. Qin
- Department of Pediatric Dentistry; Peking University School and Hospital of Stomatology; Beijing China
| | - Y. -M. Zhao
- Department of Pediatric Dentistry; Peking University School and Hospital of Stomatology; Beijing China
| | - M. -W. Huang
- Department of Oral and Maxillofacial Surgery; Peking University School and Hospital of Stomatology; Beijing China
| | - A. -P. Ji
- Department of Oral Emergency; Peking University School and Hospital of Stomatology; Beijing China
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Bai J, Zhao YM, Qin M. [Retrospective study about periodontal ligament healing of replanted permanent teeth in children]. Beijing Da Xue Xue Bao Yi Xue Ban 2015; 47:312-316. [PMID: 25882951] [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: 06/04/2023]
Abstract
OBJECTIVE To analyze the prognosis about periodontal ligament healing of replanted permanent teeth in children and to examine the associated factors. METHODS The sample consisted of 49 children with 61 avulsed permanent teeth, whose injuries had been managed in the period from 2000 to 2012. The clinical data of replanted teeth were collected, and the follow-up period was no less than 12 months. The factors were analyzed in relation to postoperative outcomes, classified as functional periodontal healing (FH), infection-related (inflammatory) resorption (IRR) and replacement resorption (RR). RESULTS The functional healing rate was 23.0%, while replacement resorption rate was 72.1%. The replacement resorption (ankylosis) was usually observed earlier by clinical examination than by radiographic examination. 86.0% (40/47) resorptive processes were diagnosed within the first year. Physiological storages, such as milk, saline and saliva were significantly better to periodontal ligament healing than nonphysiological storages, such as tap water and sterilizing solutions (chloramine and alcohol). Functional healing was found significantly more frequent in canines and premolars. CONCLUSION The factor significantly affecting periodontal ligament healing is storage medium. Replacement resorption is the most common type of root resorption. The replacement resorption diagnosis must combine the radiographic examination with the clinical examination. It is better to follow up more than 1 year after tooth replantation.
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Affiliation(s)
- J Bai
- Department of Oral Emergency, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y M Zhao
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - M Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China
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Fang P, Xu W, Li D, Zhao X, Dai J, Wang Z, Yan X, Qin M, Zhang Y, Xu C, Wang L, Qiao Z. A novel acrosomal protein, IQCF1, involved in sperm capacitation and the acrosome reaction. Andrology 2014; 3:332-44. [PMID: 25380116 DOI: 10.1111/andr.296] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 09/08/2014] [Accepted: 09/20/2014] [Indexed: 12/11/2022]
Abstract
On the basis of the unknown tags in the mature human sperm serial analysis of gene expression library constructed by our laboratory, some transcripts were cloned, including Iqcf1 (IQ motif containing F1). To investigate the function of sperm-retained Iqcf1 in spermatogenesis and fertilization of mice, we investigated the spatial and temporal expression of IQCF1. By using the (transcription activator-like effector nuclease) strategy, Iqcf1-knockout mice were produced, and the phenotypes of the Iqcf1(-/-) mice were analyzed. The results showed that IQCF1 was localized in the acrosome of spermatozoa and spermatids; the expression of IQCF1 in testes was associated with spermatogenic capacity. The Iqcf1(-/-) mice were significantly less fertile than the wild-type mice (p = 0.0057) because of reduced sperm motility (p = 0.0094) and the acrosome reaction (AR) (p = 0.0093). In spermatozoa, IQCF1 interacted with calmodulin (CaM) and possibly participated in the tyrosine phosphorylation of sperm proteins during capacitation. In conclusion, a newly identified acrosomal protein, IQCF1, is closely related to sperm capacitation and AR; in particular, it is involved in tyrosine phosphorylation of sperm proteins through interaction with CaM. Research into the function of IQCF1 during fertilization could facilitate the investigation of the molecular mechanism of capacitation, which is unclear.
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Affiliation(s)
- P Fang
- School of Life Sciences and Biotechnology, Shanghai Key Laboratory of Reproductive Medicine, Shanghai Jiao Tong University, Shanghai, China
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Qin M, Shen HZ, Zhao XL, Yi XX. Dynamics and quantumness of excitation energy transfer through a complex quantum network. Phys Rev E Stat Nonlin Soft Matter Phys 2014; 90:042140. [PMID: 25375471 DOI: 10.1103/physreve.90.042140] [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: 03/13/2014] [Indexed: 06/04/2023]
Abstract
Understanding the mechanisms of efficient and robust energy transfer in organic systems provides us with insights for the optimal design of artificial systems. In this paper, we explore the dynamics of excitation energy transfer (EET) through a complex quantum network by a toy model consisting of three sites coupled to environments. We study how the coherent evolution and the noise-induced decoherence work together to reach efficient EET and illustrate the role of the phase factor attached to the coupling constant in the EET. By comparing the differences between the Markovian and non-Markovian dynamics, we discuss the effect of environment and the spatial structure of system on the dynamics and the efficiency of EET. A intuitive picture is given to show how the exciton is transferred through the system. Employing the simple model, we show the robustness of EET efficiency under the influence of the environment and elucidate the important role of quantum coherence in EET. We go further to study the quantum feature of the EET dynamics by quantumness and show the importance of quantum coherence from a different perspective. We calculate the energy current in the EET and its quantumness, and results for different system parameters are presented and discussed.
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Affiliation(s)
- M Qin
- School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China
| | - H Z Shen
- School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China
| | - X L Zhao
- School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China
| | - X X Yi
- Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun 130024, China
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Zhang Y, Huang Y, Qin M. Tumour-infiltrating FoxP3+ and IL-17-producing T cells affect the progression and prognosis of gallbladder carcinoma after surgery. Scand J Immunol 2014; 78:516-22. [PMID: 24007242 DOI: 10.1111/sji.12109] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Accepted: 09/01/2013] [Indexed: 12/16/2022]
Abstract
Tumour-infiltrating lymphocytes (TILs) have been found to play crucial roles in a series of cancers. However, the impact of these cells on gallbladder carcinoma (GBC) remains poorly understood. In this study, we examined infiltrating FoxP3+, IL-17+, CD4+ and CD8+ cells by immunohistochemistry in specimens of 104 patients with GBC and evaluated the association of these cells with clinicopathological features and prognosis. The number of FoxP3+ cells was increased in a stepwise manner from CC to GA and GBC (GA versus CC, P = 0.036; early GBC versus GA, P = 0.032; advanced versus early GBC, P = 0.025). Both intratumoral FoxP3+ and IL-17+ cells correlated with nodal metastasis and TNM stage. Additionally, there were more infiltrating FoxP3+ cells in specimens with distant metastasis (P = 0.014). The group with high FoxP3+ cells showed poor overall survival (OS, P < 0.001) and disease-free survival (DFS, P < 0.001), and high infiltration of IL-17-producing cells was also a predictor of poor OS (P = 0.024). Multivariate analysis revealed that the presence of intratumoral FoxP3+ cells was an independent prognostic indicator for poor DFS (P < 0.01). In summary, these findings indicate that FoxP3+ and IL-17+ cells cooperatively facilitate pathogenesis and progression of GBC and show prognostic significance for OS or DFS.
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Affiliation(s)
- Y Zhang
- Tianjin medical university, No. 22, Qi Xiangtai Road, Heping district, Tianjin, China
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Liao M, Ye F, Zhang B, Huang L, Xiao Q, Qin M, Mo L, Tan A, Gao Y, Lu Z, Wu C, Zhang Y, Zhang H, Qin X, Hu Y, Yang X, Mo Z. Erratum: Genome-wide association study identifies common variants at TNFRSF13B associated with IgG level in a healthy Chinese male population. Genes Immun 2012. [DOI: 10.1038/gene.2012.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liao M, Ye F, Zhang B, Huang L, Xiao Q, Qin M, Mo L, Tan A, Gao Y, Lu Z, Wu C, Zhang Y, Zhang H, Qin X, Hu Y, Yang X, Mo Z. Genome-wide association study identifies common variants at TNFRSF13B associated with IgG level in a healthy Chinese male population. Genes Immun 2012; 13:509-13. [DOI: 10.1038/gene.2012.26] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhong H, Liu F, Sha ZH, Tang XH, Qin M, Zhou XL, Ren Y, Tang HB, Fu P. [Blood pressure variation of hypertensive diabetic nephropathy patients undergoing peritoneal dialysis]. Sichuan Da Xue Xue Bao Yi Xue Ban 2012; 43:429-433. [PMID: 22812252] [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
OBJECTIVE To investigate the variance of blood pressure of hypertensive diabetic patients undergoing continuous ambulatory peritoneal dialysis (CAPD). METHODS Twenty hypertensive CAPD patients older than 40 years with diabetic nephropathy (DN-PD group) and twenty patients with chronic glomerular nephritis (CGN-PD group) were recruited. Peritoneal status and dialysis adequacy of the patients in the two groups were calculated using PD Adequest. All patients were given 24-hour ambulatory blood pressure monitoring (ABPM). Parameters of blood pressure variation were calculated and compared between the two groups, which included 24 h systolic and diastolic blood pressure variability (24 h SBPV/DBPV) and coefficient of variation (24 h SBPCV/24 h DBPCV), daytime systolic anid diastolic blood pressure variability (dSBPV/ DBPV) and coefficient of variation (dSBPCV/dDBPCV), and night time systolic and diastolic blood pressure variability (nSBPV/ DBPV) and coefficient of variation (nSBPCV/nDBPCV). RESULTS No significant differences in clinical characteristics were found between the two groups of patients except for fast glucose. No significant differences in average systolic and diastolic blood pressures, average piulse pressure and mean 24 h, daytime, and nighttime arterial pressures were found between the two groups. However, the DN-PD group had significantly higher 24 h SBPV, 24 h SBPCV, dSBPV and dSBPCV than the CGN-PD group (P < 0.05). CONCLUSION Hypertensive diabetic nephropathy patients undergoing peritoneal dialysis have greater blood pressure variance than those with hypertensive chronic glomerular nephritis, despite a similar result of blood pressure control.
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Affiliation(s)
- Hui Zhong
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu 610041, China
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Joe BH, Sohn IS, Park BJ, Park JH, Jin ES, Cho JM, Kim CJ, Saleh A, Matsumori A, Negm H, Shalaby M, Haykal M, Tsverava M, Tsverava D, Lobjanidse N, Han JY, Ha SI, Yang JS, Choi DH, Chung JW, Koh YY, Chang KS, Hong SP, Adachi H, Taguchi T, Oshima H, Huang FQ, Zhong L, Le TT, Tan RS, Zhao QY, Yu SB, Huang H, Qin M, Cui HY, Huang T, Huang CX, Chan WYW, Blomqvist A, Melton IC, Crozier IG, Noren K, Troughton RW, Indriani S, Siswanto BB, Soerarso R, Hersunarti N, Harimurti GM, Margey R, Hynes B, Pomerantsev E, Moran D, Hatim M, Kiernan T, Inglessis I, Palacios I, Margey R, Suh W, Witzke C, Moran D, Hatim M, Kiernan T, Yeh R, Sahkuja R, Seto A, Palacios I, Chen Y, Chen Y, Li H, Zhou B, Shi SQ, Rao L, Gong H, Wang X, Ling Y, Obispo-Mortos SA, Reyes DRC, Cabasan G, Caguioa EVS, Ramirez MFL, Navarra SV, Wang S, Lam YY, Fang F, Shang Q, Luo XX, Liu M, Wang J, Sanderson JE, Sun JP, Yu CM, Wang S, Lam YY, Fang F, Shang Q, Luo XX, Liu M, Wang J, Sanderson JE, Sun JP, Yu CM, Hernandez-Madrid A, Matia Frances R, Bullon M, Moro C, Luo XX, Fang F, Sun JP, Sanderson JE, Kwong SW, Lee PW, Lam YY, Yu CM, Larina VN, Bart BY. P058 * APACHE II score, rather than cardiac function, may predict poor prognosis in patients with stress-induced cardiomyopathy. Eur Heart J Suppl 2012. [DOI: 10.1093/eurheartj/sur027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Allam R, Galal W, El-Damnhoury H, Mortada A, Guo R, Fang F, Xie JM, Zhang Q, Chan YS, Fung WH, Razali O, Azlan H, Lam KH, Chan CK, Yu CM, Wong FMF, Sit JWH, Wong EML, Lee V, Hemingway H, Harb R, Crake T, Lambiase P, Zhao QY, Yu SB, Huang H, Qin M, Cui HY, Huang T, Huang CX, Leung YW, Yue CS, Leung KF, Fung CYR, Mak YMW, Chow KS, Tang SK, Sperzel J, Tscheliessnigg K, Bucx JJJ, Silvestre J, Oza AL, Yu Mironov N, Golitsyn SP, Sokolov SF, Yuricheva YA, Maikov EB, Shlevkov NB, Mareev YV, Rosenstraukh LV, Chazov EI, Li BN, Qin J, Xiang K, Pang WM, Wang LS, Wu HS, Qin J, Wong TT, Yu CM, Heng PA, Clatot J, Ziyadeh-Isleem A, Coulombe A, Maugenre S, Dilanian G, Hatem S, Denjoy I, Neyroud N, Guicheney P, Plameras GB, Valentin MV, Ramirez M, Suga C, Hirahara T, Sugawara Y, Nakajima J, Wakaba H, Ako J, Momomura S, Ye Volkov D, Karpenko YI, Lopin DA, Chair SY, Lee JCK, Choi KC, Sit JWH, Wong EM, Chan CWH, So WKW, Cheng AHY, Hamid AK, Lainchbury JG, Troughton RW, Yandle TG, Frampton CM, Richards AM. P001 * Reversal of endothelial dysfunction after AF cardioversion. Eur Heart J Suppl 2012. [DOI: 10.1093/eurheartj/sur022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Abstract
Anterior partial fundoplication (AF) has been popularized by a lower risk of mechanical side effects. The question then emerges whether anterior partial wrap has a similar antireflux effect with Nissen fundoplication (NF). We therefore conducted a randomized study to compare the long-term outcome of anterior fundoplication with NF. One hundred patients who enrolled in the trial from May 2003 to March 2005 were randomized to laparoscopic AF or laparoscopic NF. Endoscopy, pH monitoring, manometry, a detailed questionnaire, and a visual analog symptom score were completed preoperative at 6, 12, 24, and 60 months after surgical procedures. The postoperative adverse effects such as dysphagia and flatulence were compared between the two groups. Revision surgery or maintenance proton pump inhibitor therapy was defined as failure. Fifty procedures were performed in each group. The outcome at 5 years follow-up was determined for 96 patients (96%; 49 patients in the AF group and 47 in the NF group). Three patients (3%) died of unrelated causes during follow-up, and one patient changed address. Both fundoplications were found to provide good control of reflux-related symptoms in most of the patients. For 96 patients followed up more than 5 years, gastroesophageal reflux symptoms were well controlled in 81 patients (84.38%); the mean DeMeester scores in the AF group decreased from 106.89 ± 14.12 to 12.67 ± 3.14 and in the NF group from 109.51 ± 17.98 to 10.81 ± 2.65, and the esophagitis was ameliorated visibly. Moreover, there were significantly fewer patients in the AF group who complained of flatulence. Compared with NF, anterior 180° partial fundoplication is an effective treatment of gastroesophageal reflux and associates with fewer postoperative adverse effects.
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Affiliation(s)
- Z Cao
- TianJin Medical University, TianJin Mini-invasive Surgery Center, TianJin NanKai Hospital, TianJin, China.
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Li GF, Qian TL, Li GS, Yang CX, Qin M, Huang J, Sun M, Han YQ. Sodium valproate inhibits MDA-MB-231 breast cancer cell migration by upregulating NM23H1 expression. Genet Mol Res 2012; 11:77-86. [PMID: 22290468 DOI: 10.4238/2012.january.13.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Breast cancer is a common cancer in women, with a highly variable course, from inoffensive to lethal. To find a more effective strategy for its treatment, sodium valproate has been tested as an anti-cancer drug; it is the only clinically available histone deacetylase inhibitor. However, data about the effects of sodium valproate on breast cancer are insufficient in both animals and humans; studies have yielded conflicting conclusions. In particular, little is known about the association between expression of the metastasis suppressor Nm23H1 gene and breast cancer. We hypothesized that sodium valproate regulates NM23H1 expression, and affects migration and/or invasion. We found that sodium valproate at concentrations of 0.8-3.2 mM inhibits migration and modulates Nm23H1 gene expression in a concentration-dependent manner. Confluent MDA-MB-231 cells were scratched by a micropipette tip after VPA treatment for 24 h; 24 h later, the scratch was almostly closed in the 0 mM VPA-treated cells, while the 3.2 mM VPA-treated cells migrated the slowest. The cell migration ratio exposed to 0.8, 1.6 and 3.2 mM VPA was about 66.67, 30.67 and 26.67% (P < 0.05). We also found evidence that sodium valproate upregulates NM23H1 expression, which is a clue to its anti-cancer mode of action. The NM23H1 gene expression was relative fold increased determined by Western blotting at 3.2 mM VPA. Collectively, these observations indicate that sodium valproate has potential for use in breast cancer treatment.
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Affiliation(s)
- G-F Li
- Department of Oncology, The Fourth Affiliated Hospital, Guangxi Medical University, Liuzhou, Guangxi, China.
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Qin M, Xia Z, Huang T, Smith CB. Effects of chronic immobilization stress on anxiety-like behavior and basolateral amygdala morphology in Fmr1 knockout mice. Neuroscience 2011; 194:282-90. [PMID: 21723920 DOI: 10.1016/j.neuroscience.2011.06.047] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 06/03/2011] [Accepted: 06/14/2011] [Indexed: 01/06/2023]
Abstract
Several lines of clinical evidence support the idea that fragile X syndrome (FXS) may involve a dysregulation of hypothalamic-pituitary-adrenal axis function [Wisbeck et al. (2000) J Dev Behav Pediatr 21:278-282; Hessl et al. (2002) Psychoneuroendocrinology 27:855-872]. We had tested this idea in a mouse model of FXS (Fmr1 KO) and found that the hormonal response to acute stress was similar to that of wild-type (WT) mice [Qin and Smith (2008) Psychoneuroendocrinology 33:883-889]. We report here responses to chronic stress (CS) in Fmr1 KO mice. Following restraint for 120 min/d, 10 consecutive days, we assessed dendrite and spine morphology in basolateral amygdala (BLA). We also monitored behavior in an elevated plus maze (EPM) and the hormonal response to this novel spatial environment. After CS, mice of both genotypes underwent adrenal hypertrophy, but effects were greater in WT mice. Behavior in the EPM indicated that only WT mice had the expected increase in anxiety following CS. Serum corticosterone and adrenocorticotropic hormone (ACTH) levels were both increased following the spatial novelty of EPM, and there were no differences between genotypes in the hormonal responses. BLA dendritic branching increased proximal to the soma in WT, but in Fmr1 KO mice branching was unaffected close to the soma and slightly decreased at one point distal to the soma. Similarly, spine density on apical and basal dendrites increased in WT but decreased in Fmr1 KO mice. Spine length on apical and basal dendrites increased in WT but was unaffected in Fmr1 KO mice. These differences in behavioral response and effects on neuron morphology in BLA suggest a diminished adaptive response of Fmr1 KO mice.
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Affiliation(s)
- M Qin
- Section on Neuroadaptation and Protein Metabolism, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
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Kopelman R, Lee Y, Wang S, Hah H, Kim G, Nie M, Qin M, Sagher O, Orringer D, Philbert M, Herrmann K, Pandey R. Why use nanoparticles as photosensitizers for PDT? Photodiagnosis Photodyn Ther 2011. [DOI: 10.1016/j.pdpdt.2011.03.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Song T, Huang C, Yang A, Yao Y, Chen Y, Liu J, Fang PH, Liu Y, Lu GY, Li Z, Li XF, Hou Y, Wang YS, Zhao Q, Zhang S, Huang H, Zhang Y, Deng H, Yu S, Huang C, Yu S, Zhao Q, Huang H, Chen D, Cui H, Hong X, Qin M, Salim M, Huang C. CSPE Young Investigator Award Session. Europace 2011. [DOI: 10.1093/europace/euq490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Arsenos P, Gatzoulis KA, Gialernios T, Dilaveris P, Archontakis S, Tsiachris D, Mytas D, Papafanis T, Papavasileiou MV, Stefanadis C, Yu S, Zhao Q, Huang H, Chen DE, Cui H, Qin M, Huang C, Carvalho VO, Rodrigues-Junior OG, Vieira M, Guimaraes GV, Bocchi EA, Yu S, Zhao Q, Qin M, Huang H, Cui H, Huang C, Qiao Q, Ding L, Hua W, Zhang S, Chen K, Wang F. Heart Failure. Europace 2011. [DOI: 10.1093/europace/euq476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yang B, Chen M, Zhang F, Ju W, Chen H, Zhao W, Zhai L, Wang J, Yu J, Shan Q, Zou J, Chen C, Dongjie X, Hou X, Cao K, Dong YX, Yang YZ, Oh JK, Mitsuru M, Powell BD, Larson MD, Buescher TL, Hodge DO, Packer DL, Cha YM, Liu J, Fang P, Hou Y, Li X, Hou C, Ma J, Pu J, Zhang S, Ju W, Yang B, Chen H, Zhang F, Zhai L, Cao K, Chen M, Yu S, Zhao Q, Qin M, Cui H, Huang H, Huang C. AF Ablation III. Europace 2011. [DOI: 10.1093/europace/euq472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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