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Xu W, Hanikel N, Lomachenko KA, Atzori C, Lund A, Lyu H, Zhou Z, Angell CA, Yaghi OM. High-Porosity Metal-Organic Framework Glasses. Angew Chem Int Ed Engl 2023; 62:e202300003. [PMID: 36791229 PMCID: PMC10503658 DOI: 10.1002/anie.202300003] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 02/17/2023]
Abstract
We report a synthetic strategy to link titanium-oxo (Ti-oxo) clusters into metal-organic framework (MOF) glasses with high porosity though the carboxylate linkage. A new series of MOF glasses was synthesized by evaporation of solution containing Ti-oxo clusters Ti16 O16 (OEt)32 , linkers, and m-cresol. The formation of carboxylate linkages between the Ti-oxo clusters and the carboxylate linkers was confirmed by Fourier-transform infrared (FT-IR) spectroscopy. The structural integrity of the Ti-oxo clusters within the glasses was evidenced by both X-ray absorption near edge structure (XANES) and 17 O magic-angle spinning (MAS) NMR. After ligand exchange and activation, the fumarate-linked MOF glass, termed Ti-Fum, showed a N2 Brunauer-Emmett-Teller (BET) surface areas of 923 m2 g-1 , nearly three times as high as the phenolate-linked MOF glass with the highest BET surface area prior to this report.
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Affiliation(s)
- Wentao Xu
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Nikita Hanikel
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kirill A Lomachenko
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043, Grenoble Cedex 9, France
| | - Cesare Atzori
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043, Grenoble Cedex 9, France
| | - Alicia Lund
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Hao Lyu
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Zihui Zhou
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - C Austen Angell
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, USA
| | - Omar M Yaghi
- Department of Chemistry, Kavli Energy Nanoscience Institute, and Bakar Institute of Digital Materials for the Planet, Division of Computing, Data Science, and Society, University of California, Berkeley, Berkeley, CA 94720, USA
- KACST-UC Berkeley Center of Excellence for Nanomaterials for Clean Energy Applications, King Abdulaziz City for Science and Technology, Riyadh, 11442, Saudi Arabia
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2
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Xu W, Hanikel N, Lomachenko KA, Atzori C, Lund A, Lyu H, Zhou Z, Angell CA, Yaghi OM. High‐Porosity Metal–Organic Framework Glasses. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202300003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Wentao Xu
- UC Berkeley: University of California Berkeley Chemistry Latimer Hall 94720 Berkeley UNITED STATES
| | - Nikita Hanikel
- University of California Berkeley Chemistry and Kavli Energy Nanoscience Institute UNITED STATES
| | | | - Cesare Atzori
- European Synchrotron Radiation Facility: ESRF BM23/ID24 beamlines FRANCE
| | - Alicia Lund
- University of California Berkeley Chemistry UNITED STATES
| | - Hao Lyu
- University of California Berkeley Department of Chemistry and Kavli Energy Nanoscience Institute UNITED STATES
| | - Zihui Zhou
- UC Berkeley: University of California Berkeley Department of Chemistry UNITED STATES
| | - C. Austen Angell
- Arizona State University School of Molecular Sciences UNITED STATES
| | - Omar M. Yaghi
- University of California Berkeley Chemistry 602 Latimer Hall 94720 Berkeley UNITED STATES
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3
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J Johansen N, Dejgaard TF, Lund A, Moeller HJ, Forman J, Vilsboell T, Andersen HU, Knop FK. Residual inflammatory risk appeared related to weight, atherogenic lipid profile and biomarkers of inflammation, but not to glycaemic control in type 1 diabetes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Mortality associated with atherosclerotic cardiovascular disease reduces average life expectancy by more than a decade in type 1 diabetes. Systemic inflammation drives atherosclerosis, and the concept of residual inflammatory risk (defined by high-sensitivity C-reactive protein (hsCRP) ≥2 mg/l) poses a potential, new therapeutic target for lowering residual cardiovascular risk in type 1 diabetes. However, the characteristics of individuals with residual inflammatory risk in type 1 diabetes are unknown.
Purpose
Identify differences in relevant demographics, clinical and paraclinical parameters for individuals with residual inflammatory risk as compared to those without in type 1 diabetes.
Methods
Baseline characteristics as stratified for CRP ≥2 mg/l were analysed in 105 patients with type 1 diabetes participating in a previously published clinical trial. The study population was sampled to represent the broad background population struggling with glycaemic control and with a high cardiovascular risk.
Results
Residual inflammatory risk was seen in 39.1% of the study population. Compared to individuals without residual inflammatory risk, individuals with residual inflammatory risk were more frequently women, had increased body weight, body mass index and dual-energy X-ray absorptiometry (DXA)-assessed fat mass and exhibited elevated levels of low-density lipoprotein (LDL), very low-density lipoprotein (VLDL) and total cholesterol as well as triglycerides, interleukin 6 and tumour necrosis factor alpha (Table 1). Glycated haemoglobin, blood pressure and markers of renal function were similar between groups (Table 1).
Conclusion
In the present cohort of individuals with type 1 diabetes, residual inflammatory risk was seen in 39.1% (similar to what is observed outside of type 1 diabetes) and appeared related to overweight/obesity, an atherogenic lipid profile and circulating biomarkers of inflammation but not to glycaemic control, blood pressure or renal function.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): AstraZenecaHerlev Gentofte Hospital
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Affiliation(s)
- N J Johansen
- Herlev and Gentofte Hospital , Copenhagen , Denmark
| | - T F Dejgaard
- Herlev and Gentofte Hospital , Copenhagen , Denmark
| | - A Lund
- Herlev and Gentofte Hospital , Copenhagen , Denmark
| | - H J Moeller
- Aarhus University Hospital , Aarhus , Denmark
| | - J Forman
- University of Copenhagen , Copenhagen , Denmark
| | - T Vilsboell
- Herlev and Gentofte Hospital , Copenhagen , Denmark
| | - H U Andersen
- Steno Diabetes Center Copenhagen , Copenhagen , Denmark
| | - F K Knop
- Herlev and Gentofte Hospital , Copenhagen , Denmark
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4
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Mao H, Tang J, Day GS, Peng Y, Wang H, Xiao X, Yang Y, Jiang Y, Chen S, Halat DM, Lund A, Lv X, Zhang W, Yang C, Lin Z, Zhou HC, Pines A, Cui Y, Reimer JA. A scalable solid-state nanoporous network with atomic-level interaction design for carbon dioxide capture. Sci Adv 2022; 8:eabo6849. [PMID: 35921416 PMCID: PMC9348791 DOI: 10.1126/sciadv.abo6849] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Carbon capture and sequestration reduces carbon dioxide emissions and is critical in accomplishing carbon neutrality targets. Here, we demonstrate new sustainable, solid-state, polyamine-appended, cyanuric acid-stabilized melamine nanoporous networks (MNNs) via dynamic combinatorial chemistry (DCC) at the kilogram scale toward effective and high-capacity carbon dioxide capture. Polyamine-appended MNNs reaction mechanisms with carbon dioxide were elucidated with double-level DCC where two-dimensional heteronuclear chemical shift correlation nuclear magnetic resonance spectroscopy was performed to demonstrate the interatomic interactions. We distinguished ammonium carbamate pairs and a mix of ammonium carbamate and carbamic acid during carbon dioxide chemisorption. The coordination of polyamine and cyanuric acid modification endows MNNs with high adsorption capacity (1.82 millimoles per gram at 1 bar), fast adsorption time (less than 1 minute), low price, and extraordinary stability to cycling by flue gas. This work creates a general industrialization method toward carbon dioxide capture via DCC atomic-level design strategies.
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Affiliation(s)
- Haiyan Mao
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Jing Tang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Gregory S. Day
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
| | - Yucan Peng
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Haoze Wang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Xin Xiao
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Yufei Yang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Yuanwen Jiang
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Shuo Chen
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - David M. Halat
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA
| | - Alicia Lund
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Xudong Lv
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Wenbo Zhang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Chongqing Yang
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Zhou Lin
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Hong-Cai Zhou
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
| | - Alexander Pines
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Yi Cui
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Jeffrey A. Reimer
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA
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5
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Nguyen HL, Gropp C, Hanikel N, Möckel A, Lund A, Yaghi OM. Hydrazine-Hydrazide-Linked Covalent Organic Frameworks for Water Harvesting. ACS Cent Sci 2022; 8:926-932. [PMID: 35912353 PMCID: PMC9336147 DOI: 10.1021/acscentsci.2c00398] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report a postsynthetic strategy and its implementation to make covalent organic frameworks (COFs) with irreversible hydrazide linkages. This involved the synthesis of three 2D and 3D hydrazine-linked frameworks and their partial oxidation. The linkage synthesis and functional group transformation-hydrazine and hydrazide-were evidenced by 15N multi-CP-MAS NMR. In addition, the isothermal water uptake profiles of these frameworks were studied, leading to the discovery of one hydrazine-hydrazide-linked COF suitable for water harvesting from air in arid conditions. This COF displayed characteristic S-shaped water sorption profiles, a steep pore-filling step below 18% relative humidity at 25 °C, and a total uptake capacity of 0.45 g g-1. We found that even small changes made on the molecular level can lead to major differences in the water isotherm profiles, therefore pointing to the utility of water sorption analysis as a complementary analytical tool to study linkage transformations.
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Affiliation(s)
- Ha L. Nguyen
- Department
of Chemistry, University of California−Berkeley,
Kavli Energy Nanoscience Institute at UC Berkeley; and Berkeley Global
Science Institute, Berkeley, California 94720, United States
- Joint
UAEU−UC Berkeley Laboratories for Materials Innovations, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Cornelius Gropp
- Department
of Chemistry, University of California−Berkeley,
Kavli Energy Nanoscience Institute at UC Berkeley; and Berkeley Global
Science Institute, Berkeley, California 94720, United States
| | - Nikita Hanikel
- Department
of Chemistry, University of California−Berkeley,
Kavli Energy Nanoscience Institute at UC Berkeley; and Berkeley Global
Science Institute, Berkeley, California 94720, United States
| | - Anna Möckel
- Department
of Chemistry, University of California−Berkeley,
Kavli Energy Nanoscience Institute at UC Berkeley; and Berkeley Global
Science Institute, Berkeley, California 94720, United States
| | - Alicia Lund
- Department
of Chemistry, University of California−Berkeley, Berkeley, California 94720, United States
| | - Omar M. Yaghi
- Department
of Chemistry, University of California−Berkeley,
Kavli Energy Nanoscience Institute at UC Berkeley; and Berkeley Global
Science Institute, Berkeley, California 94720, United States
- Joint
UAEU−UC Berkeley Laboratories for Materials Innovations, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
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6
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Lund A, Manohara GV, Song AY, Jablonka KM, Ireland CP, Cheah LA, Smit B, Garcia S, Reimer JA. Characterization of Chemisorbed Species and Active Adsorption Sites in Mg-Al Mixed Metal Oxides for High-Temperature CO 2 Capture. Chem Mater 2022; 34:3893-3901. [PMID: 35573112 PMCID: PMC9097159 DOI: 10.1021/acs.chemmater.1c03101] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 03/17/2022] [Indexed: 06/15/2023]
Abstract
Mg-Al mixed metal oxides (MMOs), derived from the decomposition of layered double hydroxides (LDHs), have been purposed as adsorbents for CO2 capture of industrial plant emissions. To aid in the design and optimization of these materials for CO2 capture at 200 °C, we have used a combination of solid-state nuclear magnetic resonance (ssNMR) and density functional theory (DFT) to characterize the CO2 gas sorption products and determine the various sorption sites in Mg-Al MMOs. A comparison of the DFT cluster calculations with the observed 13C chemical shifts of the chemisorbed products indicates that mono- and bidentate carbonates are formed at the Mg-O sites with adjacent Al substitution of an Mg atom, while the bicarbonates are formed at Mg-OH sites without adjacent Al substitution. Quantitative 13C NMR shows an increase in the relative amount of strongly basic sites, where the monodentate carbonate product is formed, with increasing Al/Mg molar ratios in the MMOs. This detailed understanding of the various basic Mg-O sites presented in MMOs and the formation of the carbonate, bidentate carbonate, and bicarbonate chemisorbed species yields new insights into the mechanism of CO2 adsorption at 200 °C, which can further aid in the design and capture capacity optimization of the materials.
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Affiliation(s)
- Alicia Lund
- Materials
Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - G. V. Manohara
- Research
Center for Carbon Solutions (RCCS), School of Engineering and Physical
Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | - Ah-Young Song
- Materials
Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Kevin Maik Jablonka
- Laboratory
of Molecular Simulation (LSMO), Institut
des Sciences et Ingénierie Chimiques, École Polytechnique
Fédérale de Lausanne (EPFL), Rue de l’Industrie 17, Sion CH-1951, Switzerland
| | - Christopher P. Ireland
- Laboratory
of Molecular Simulation (LSMO), Institut
des Sciences et Ingénierie Chimiques, École Polytechnique
Fédérale de Lausanne (EPFL), Rue de l’Industrie 17, Sion CH-1951, Switzerland
| | - Li Anne Cheah
- Research
Center for Carbon Solutions (RCCS), School of Engineering and Physical
Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | - Berend Smit
- Laboratory
of Molecular Simulation (LSMO), Institut
des Sciences et Ingénierie Chimiques, École Polytechnique
Fédérale de Lausanne (EPFL), Rue de l’Industrie 17, Sion CH-1951, Switzerland
| | - Susana Garcia
- Research
Center for Carbon Solutions (RCCS), School of Engineering and Physical
Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | - Jeffrey A. Reimer
- Materials
Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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7
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Perlis N, Finelli A, Lovas M, Lund A, Di Meo A, Lajkosz K, Berlin A, Papadakos J, Ghai S, Deniffel D, Meng E, Wiljer D, Alibhai S, Bakas V, Badzynski A, Lee O, Cafazzo J, Haider M. Exploring the value of using patient-oriented mri reports in clinical practice. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00558-9] [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: 11/04/2022]
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Qi L, Babucci M, Zhang Y, Lund A, Liu L, Li J, Chen Y, Hoffman AS, Bare SR, Han Y, Gates BC, Bell AT. Propane Dehydrogenation Catalyzed by Isolated Pt Atoms in ≡SiOZn-OH Nests in Dealuminated Zeolite Beta. J Am Chem Soc 2021; 143:21364-21378. [PMID: 34881868 DOI: 10.1021/jacs.1c10261] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Atomically dispersed noble metal catalysts have drawn wide attention as candidates to replace supported metal clusters and metal nanoparticles. Atomic dispersion can offer unique chemical properties as well as maximum utilization of the expensive metals. Addition of a second metal has been found to help reduce the size of Pt ensembles in bimetallic clusters; however, the stabilization of isolated Pt atoms in small nests of nonprecious metal atoms remains challenging. We now report a novel strategy for the design, synthesis, and characterization of a zeolite-supported propane dehydrogenation catalyst that incorporates predominantly isolated Pt atoms stably bonded within nests of Zn atoms located within the nanoscale pores of dealuminated zeolite Beta. The catalyst is stable in long-term operation and exhibits high activity and high selectivity to propene. Atomic resolution images, bolstered by X-ray absorption spectra, demonstrate predominantly atomic dispersion of the Pt in the nests and, with complementary infrared and nuclear magnetic resonance spectra, determine a structural model of the nested Pt.
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Affiliation(s)
- Liang Qi
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Melike Babucci
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Yanfei Zhang
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Alicia Lund
- College of Chemistry, University of California, Berkeley, California 94720, United States
| | - Lingmei Liu
- Advanced Membranes and Porous Materials (AMPM) Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.,Multi-scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Jingwei Li
- Multi-scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yizhen Chen
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Adam S Hoffman
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Simon R Bare
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Yu Han
- Advanced Membranes and Porous Materials (AMPM) Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.,KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Bruce C Gates
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Alexis T Bell
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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9
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Menzildjian G, Lund A, Yulikov M, Gajan D, Niccoli L, Karthikeyan G, Casano G, Jeschke G, Ouari O, Lelli M, Lesage A. Efficient Dynamic Nuclear Polarization up to 230 K with Hybrid BDPA-Nitroxide Radicals at a High Magnetic Field. J Phys Chem B 2021; 125:13329-13338. [PMID: 34818009 DOI: 10.1021/acs.jpcb.1c07307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pairing the spectral resolution provided by high magnetic fields at ambient temperature with the enhanced sensitivity offered by dynamic nuclear polarization (DNP) is a major goal of modern solid-state NMR spectroscopy, which will allow one to unlock ever-challenging applications. This study demonstrates that, by combining HyTEK2, a hybrid BDPA-nitroxide biradical polarizing agent, with ortho-terphenyl (OTP), a rigid DNP matrix, enhancement factors as high as 65 can be obtained at 230 K, 40 kHz magic angle spinning (MAS), and 18.8 T. The temperature dependence of the DNP enhancement and its behavior around the glass transition temperature (Tg) of the matrix is investigated by variable-temperature EPR measurements of the electron relaxation properties and numerical simulations. A correlation is suggested between the decrease in enhancement at the passage of the Tg and the concomitant drop of both transverse electron relaxation times in the biradical.
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Affiliation(s)
- Georges Menzildjian
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCBL), 69100 Villeurbanne, France
| | - Alicia Lund
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCBL), 69100 Villeurbanne, France
| | - Maxim Yulikov
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland
| | - David Gajan
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCBL), 69100 Villeurbanne, France
| | - Lorenzo Niccoli
- Center of Magnetic Resonance (CERM), University of Florence, 50019 Sesto Fiorentino, Italy
| | - Ganesan Karthikeyan
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, 13013 Marseille, France
| | - Gilles Casano
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, 13013 Marseille, France
| | - Gunnar Jeschke
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland
| | - Olivier Ouari
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, 13013 Marseille, France
| | - Moreno Lelli
- Center of Magnetic Resonance (CERM), University of Florence, 50019 Sesto Fiorentino, Italy
| | - Anne Lesage
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCBL), 69100 Villeurbanne, France
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10
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Zhang Y, Qi L, Lund A, Lu P, Bell AT. Mechanism and Kinetics of Acetone Conversion to Isobutene over Isolated Hf Sites Grafted to Silicalite-1 and SiO 2. J Am Chem Soc 2021; 143:8352-8366. [PMID: 34041912 DOI: 10.1021/jacs.1c01315] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Isolated hafnium (Hf) sites were prepared on Silicalite-1 and SiO2 and investigated for acetone conversion to isobutene. Characterization by IR, 1H MAS NMR, and UV-vis spectroscopy suggests that Hf atoms are bonded to the support via three O atoms and have one hydroxyl group, i.e, (≡SiO)3Hf-OH. In the case of Hf/Silicalite-1, Hf-OH groups hydrogen bond with adjacent Si-OH to form (≡SiO)3Hf-OH···HO-Si≡ complexes. The turnover frequency for isobutene formation from acetone is 4.5 times faster over Hf/Silicalite-1 than Hf/SiO2. Lewis acidic Hf sites promote the aldol condensation of acetone to produce mesityl oxide (MO), which is the precursor to isobutene. For Hf/SiO2, both Hf sites and Si-OH groups are responsible for the decomposition of MO to isobutene and acetic acid, whereas for Hf/Silicalite-1, the (≡SiO)3Hf-OH···HO-Si≡ complex is the active site. Measured reaction kinetics show that the rate of isobutene formation over Hf/SiO2 and Hf/Silicalite-1 is nearly second order in acetone partial pressure, suggesting that the rate-limiting step involves formation of the C-C bond between two acetone molecules. The rate expression for isobutene formation predicts a second order dependence in acetone partial pressure at low partial pressures and a decrease in order with increasing acetone partial pressure, in good agreement with experimental observation. The apparent activation energy for isobutene formation from acetone over Hf/SiO2 is 116.3 kJ/mol, while that for Hf/Silicalite-1 is 79.5 kJ/mol. The lower activation energy for Hf/Silicalite-1 is attributed to enhanced adsorption of acetone and formation of a C-C bond favored by the H-bonding interaction between Hf-OH and an adjacent Si-OH group.
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Affiliation(s)
- Yanfei Zhang
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Liang Qi
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Alicia Lund
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Peng Lu
- Department of Chemical and Biomolecular Engineering & Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Alexis T Bell
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
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11
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Venkatesh A, Lund A, Rochlitz L, Jabbour R, Gordon CP, Menzildjian G, Viger-Gravel J, Berruyer P, Gajan D, Copéret C, Lesage A, Rossini AJ. The Structure of Molecular and Surface Platinum Sites Determined by DNP-SENS and Fast MAS 195Pt Solid-State NMR Spectroscopy. J Am Chem Soc 2020; 142:18936-18945. [DOI: 10.1021/jacs.0c09101] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Amrit Venkatesh
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Alicia Lund
- Univ Lyon, ENS Lyon, Université Lyon 1, CNRS, High-Field NMR Center of Lyon, FRE 2034, F-69100 Villeurbanne, France
| | - Lukas Rochlitz
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Ribal Jabbour
- Univ Lyon, ENS Lyon, Université Lyon 1, CNRS, High-Field NMR Center of Lyon, FRE 2034, F-69100 Villeurbanne, France
| | - Christopher P. Gordon
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Georges Menzildjian
- Univ Lyon, ENS Lyon, Université Lyon 1, CNRS, High-Field NMR Center of Lyon, FRE 2034, F-69100 Villeurbanne, France
| | - Jasmine Viger-Gravel
- Univ Lyon, ENS Lyon, Université Lyon 1, CNRS, High-Field NMR Center of Lyon, FRE 2034, F-69100 Villeurbanne, France
- Department of Organic Chemistry, University of Geneva, 1211 Geneva, Switzerland
| | - Pierrick Berruyer
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - David Gajan
- Univ Lyon, ENS Lyon, Université Lyon 1, CNRS, High-Field NMR Center of Lyon, FRE 2034, F-69100 Villeurbanne, France
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Anne Lesage
- Univ Lyon, ENS Lyon, Université Lyon 1, CNRS, High-Field NMR Center of Lyon, FRE 2034, F-69100 Villeurbanne, France
| | - Aaron J. Rossini
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
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Dirksen C, van Dijk PR, Whicher C, Janssen AWM, Lund A. The 8 th meeting of North European Young Diabetologists. Diabet Med 2020; 37:1403. [PMID: 31532014 DOI: 10.1111/dme.14138] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/16/2019] [Indexed: 11/30/2022]
Affiliation(s)
- C Dirksen
- Department of Endocrinology, Hvidovre Hospital, Hvidovre, Denmark
| | - P R van Dijk
- Faculty of Medical Sciences, University of Groningen, Groningen, the Netherlands
| | - C Whicher
- Research and Development Department, Moorgreen Hospital, Southern Health NHS Foundation Trust, Southampton, UK
| | - A W M Janssen
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - A Lund
- Clinical Metabolic Physiology, Steno Diabetes Centre Copenhagen, Gentofte, Denmark
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13
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Lund A, Casano G, Menzildjian G, Kaushik M, Stevanato G, Yulikov M, Jabbour R, Wisser D, Renom-Carrasco M, Thieuleux C, Bernada F, Karoui H, Siri D, Rosay M, Sergeyev IV, Gajan D, Lelli M, Emsley L, Ouari O, Lesage A. TinyPols: a family of water-soluble binitroxides tailored for dynamic nuclear polarization enhanced NMR spectroscopy at 18.8 and 21.1 T. Chem Sci 2020; 11:2810-2818. [PMID: 34084341 PMCID: PMC8157490 DOI: 10.1039/c9sc05384k] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/31/2020] [Indexed: 11/21/2022] Open
Abstract
Dynamic Nuclear Polarization (DNP) has recently emerged as a key method to increase the sensitivity of solid-state NMR spectroscopy under Magic Angle Spinning (MAS). While efficient binitroxide polarizing agents such as AMUPol have been developed for MAS DNP NMR at magnetic fields up to 9.4 T, their performance drops rapidly at higher fields due to the unfavorable field dependence of the cross-effect (CE) mechanism and AMUPol-like radicals were so far disregarded in the context of the development of polarizing agents for very high-field DNP. Here, we introduce a new family of water-soluble binitroxides, dubbed TinyPols, which have a three-bond non-conjugated flexible amine linker allowing sizable couplings between the two unpaired electrons. We show that this adjustment of the linker is crucial and leads to unexpectedly high DNP enhancement factors at 18.8 T and 21.1 T: an improvement of about a factor 2 compared to AMUPol is reported for spinning frequencies ranging from 5 to 40 kHz, with ε H of up to 90 at 18.8 T and 38 at 21.1 T for the best radical in this series, which are the highest MAS DNP enhancements measured so far in aqueous solutions at these magnetic fields. This work not only breathes a new momentum into the design of binitroxides tailored towards high magnetic fields, but also is expected to push the application frontiers of high-resolution DNP MAS NMR, as demonstrated here on a hybrid mesostructured silica material.
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Affiliation(s)
- Alicia Lund
- Centre de RMN à; Très Hauts Champs, Université; de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | | | - Georges Menzildjian
- Centre de RMN à; Très Hauts Champs, Université; de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | - Monu Kaushik
- Centre de RMN à; Très Hauts Champs, Université; de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | - Gabriele Stevanato
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) CH-1015 Lausanne Switzerland
| | - Maxim Yulikov
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich CH-8093 Zürich Switzerland
| | - Ribal Jabbour
- Centre de RMN à; Très Hauts Champs, Université; de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | - Dorothea Wisser
- Centre de RMN à; Très Hauts Champs, Université; de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | - Marc Renom-Carrasco
- Institute of Chemistry of Lyon, Laboratory C2P2 UMR 5265-CNRS-University Lyon 1-CPE Lyon, University of Lyon 43 Bd du 11 Novembre 1918 69616 Villeurbanne France
| | - Chloé Thieuleux
- Institute of Chemistry of Lyon, Laboratory C2P2 UMR 5265-CNRS-University Lyon 1-CPE Lyon, University of Lyon 43 Bd du 11 Novembre 1918 69616 Villeurbanne France
| | | | | | - Didier Siri
- Aix Marseille Univ, CNRS, ICR Marseille France
| | - Melanie Rosay
- Bruker Biospin Corporation 15 Fortune Drive Billerica Massachusetts 01821 USA
| | - Ivan V Sergeyev
- Bruker Biospin Corporation 15 Fortune Drive Billerica Massachusetts 01821 USA
| | - David Gajan
- Centre de RMN à; Très Hauts Champs, Université; de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | - Moreno Lelli
- Center of Magnetic Resonance (CERM), University of Florence Via Luigi Sacconi 6 50019 Sesto Fiorentino Italy
| | - Lyndon Emsley
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) CH-1015 Lausanne Switzerland
| | | | - Anne Lesage
- Centre de RMN à; Très Hauts Champs, Université; de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
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LeBlanc JJ, ElSherif M, Mulpuru S, Warhuus M, Ambrose A, Andrew M, Boivin G, Bowie W, Chit A, Dos Santos G, Green K, Halperin SA, Hatchette TF, Ibarguchi B, Johnstone J, Katz K, Langley JM, Lagacé-Wiens P, Loeb M, Lund A, MacKinnon-Cameron D, McCarthy A, McElhaney JE, McGeer A, Poirier A, Powis J, Richardson D, Semret M, Shinde V, Smyth D, Trottier S, Valiquette L, Webster D, Ye L, McNeil S. Validation of the Seegene RV15 multiplex PCR for the detection of influenza A subtypes and influenza B lineages during national influenza surveillance in hospitalized adults. J Med Microbiol 2020; 69:256-264. [PMID: 31264957 PMCID: PMC7431100 DOI: 10.1099/jmm.0.001032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/16/2019] [Indexed: 01/04/2023] Open
Abstract
Background. The Serious Outcomes Surveillance Network of the Canadian Immunization Research Network (CIRN SOS) has been performing active influenza surveillance since 2009 (ClinicalTrials.gov identifier: NCT01517191). Influenza A and B viruses are identified and characterized using real-time reverse-transcriptase polymerase chain reaction (RT-PCR), and multiplex testing has been performed on a subset of patients to identify other respiratory virus aetiologies. Since both methods can identify influenza A and B, a direct comparison was performed.Methods. Validated real-time RT-PCRs from the World Health Organization (WHO) to identify influenza A and B viruses, characterize influenza A viruses into the H1N1 or H3N2 subtypes and describe influenza B viruses belonging to the Yamagata or Victoria lineages. In a subset of patients, the Seeplex RV15 One-Step ACE Detection assay (RV15) kit was also used for the detection of other respiratory viruses.Results. In total, 1111 nasopharyngeal swabs were tested by RV15 and real-time RT-PCRs for influenza A and B identification and characterization. For influenza A, RV15 showed 98.0 % sensitivity, 100 % specificity and 99.7 % accuracy. The performance characteristics of RV15 were similar for influenza A subtypes H1N1 and H3N2. For influenza B, RV15 had 99.2 % sensitivity, 100 % specificity and 99.8 % accuracy, with similar assay performance being shown for both the Yamagata and Victoria lineages.Conclusions. Overall, the detection of circulating subtypes of influenza A and lineages of influenza B by RV15 was similar to detection by real-time RT-PCR. Multiplex testing with RV15 allows for a more comprehensive respiratory virus surveillance in hospitalized adults, without significantly compromising the reliability of influenza A or B virus detection.
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Affiliation(s)
- J. J. LeBlanc
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - M. ElSherif
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - S. Mulpuru
- Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - M. Warhuus
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - A. Ambrose
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - M. Andrew
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - G. Boivin
- Centre Hospitalier Universitaire de Québec, QC, Canada
| | - W. Bowie
- University of British Columbia, Vancouver, BC, Canada
| | - A. Chit
- Sanofi Pasteur, Swiftwater, PA, USA
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - G. Dos Santos
- Business & Decision Life Sciences (on behalf of GSK), Bruxelles, Belgium
- Present address: GSK, Wavre, Belgium
| | - K. Green
- Mount Sinai Hospital, Toronto, ON, Canada
| | - S. A. Halperin
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - T. F. Hatchette
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - B. Ibarguchi
- GSK, Mississauga, ON, Canada
- Present address: Bayer, Inc., Mississauga, Ontario, Canada
| | - J. Johnstone
- Public Health Ontario and University of Toronto, Toronto, ON, Canada
| | - K. Katz
- North York General Hospital, Toronto, ON, Canada
| | - J. M. Langley
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | | | - M. Loeb
- Public Health Ontario and University of Toronto, Toronto, ON, Canada
| | - A. Lund
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - D. MacKinnon-Cameron
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - A. McCarthy
- Ottawa Hospital General, Ottawa, Ontario, Canada
| | - J. E. McElhaney
- Health Sciences North Research Institute, Sudbury, ON, Canada
| | - A. McGeer
- Mount Sinai Hospital, Toronto, ON, Canada
| | - A. Poirier
- Centre Intégré Universitaire de Santé et Services Sociaux, Quebec, QC, Canada
| | - J. Powis
- Toronto East General Hospital, Toronto, ON, Canada
| | | | - M. Semret
- McGill University, Montreal, QC, Canada
| | - V. Shinde
- GSK, King of Prussia, PA, USA
- Present address: Novavax Vaccines, Washington, DC, USA
| | - D. Smyth
- The Moncton Hospital, Moncton, NB, Canada
| | - S. Trottier
- Centre Hospitalier Universitaire de Québec, QC, Canada
| | | | | | - L. Ye
- Canadian Center for Vaccinology, Dalhousie University, IWK Health Centre, and Nova Scotia Health Authority, Halifax, NS, Canada
| | - S. A. McNeil
- Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
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Madsen K, Stemmerik M, Buch A, Nielsen N, Lund A, Vissing J. EP.11Impaired fat oxidation during exercise in long-chain acyl-CoA dehydrogenase deficiency patients and effect of IV-glucose. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.141] [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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Moroz IB, Lund A, Kaushik M, Severy L, Gajan D, Fedorov A, Lesage A, Copéret C. Specific Localization of Aluminum Sites Favors Ethene-to-Propene Conversion on (Al)MCM-41-Supported Ni(II) Single Sites. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01903] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ilia B. Moroz
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
| | - Alicia Lund
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Monu Kaushik
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Laurent Severy
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
| | - David Gajan
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Alexey Fedorov
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
| | - Anne Lesage
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Christophe Copéret
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1−5, CH-8093 Zürich, Switzerland
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Berkson ZJ, Hsieh M, Smeets S, Gajan D, Lund A, Lesage A, Xie D, Zones SI, McCusker LB, Baerlocher C, Chmelka BF. Innenrücktitelbild: Preferential Siting of Aluminum Heteroatoms in the Zeolite Catalyst Al‐SSZ‐70 (Angew. Chem. 19/2019). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zachariah J. Berkson
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
| | - Ming‐Feng Hsieh
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
- Present address: Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Stef Smeets
- Laboratory of CrystallographyETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
- Present address: Kavli Institute of NanoscienceDelft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - David Gajan
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon)Université LyonCentre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Alicia Lund
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon)Université LyonCentre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Anne Lesage
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon)Université LyonCentre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Dan Xie
- Chevron Energy Technology Company Richmond CA 94802 USA
| | | | - Lynne B. McCusker
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
- Laboratory of CrystallographyETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Christian Baerlocher
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
- Laboratory of CrystallographyETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Bradley F. Chmelka
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
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Berkson ZJ, Hsieh M, Smeets S, Gajan D, Lund A, Lesage A, Xie D, Zones SI, McCusker LB, Baerlocher C, Chmelka BF. Inside Back Cover: Preferential Siting of Aluminum Heteroatoms in the Zeolite Catalyst Al‐SSZ‐70 (Angew. Chem. Int. Ed. 19/2019). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/anie.201903237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zachariah J. Berkson
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
| | - Ming‐Feng Hsieh
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
- Present address: Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Stef Smeets
- Laboratory of CrystallographyETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
- Present address: Kavli Institute of NanoscienceDelft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - David Gajan
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon)Université LyonCentre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Alicia Lund
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon)Université LyonCentre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Anne Lesage
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon)Université LyonCentre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Dan Xie
- Chevron Energy Technology Company Richmond CA 94802 USA
| | | | - Lynne B. McCusker
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
- Laboratory of CrystallographyETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Christian Baerlocher
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
- Laboratory of CrystallographyETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Bradley F. Chmelka
- Department of Chemical EngineeringUniversity of California Santa Barbara CA 93106 USA
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Krantz M, Lund A, Chakarova R. EP-1734 Dosimetric effects due to uncertainties in tissue segmentation for prostate cancer treatments. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32154-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Berkson ZJ, Hsieh M, Smeets S, Gajan D, Lund A, Lesage A, Xie D, Zones SI, McCusker LB, Baerlocher C, Chmelka BF. Preferential Siting of Aluminum Heteroatoms in the Zeolite Catalyst Al‐SSZ‐70. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813533] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zachariah J. Berkson
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
| | - Ming‐Feng Hsieh
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Present address: Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Stef Smeets
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
- Present address: Kavli Institute of Nanoscience Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - David Gajan
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Alicia Lund
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Anne Lesage
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Dan Xie
- Chevron Energy Technology Company Richmond CA 94802 USA
| | | | - Lynne B. McCusker
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Christian Baerlocher
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Bradley F. Chmelka
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
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Berkson ZJ, Hsieh M, Smeets S, Gajan D, Lund A, Lesage A, Xie D, Zones SI, McCusker LB, Baerlocher C, Chmelka BF. Preferential Siting of Aluminum Heteroatoms in the Zeolite Catalyst Al‐SSZ‐70. Angew Chem Int Ed Engl 2019; 58:6255-6259. [DOI: 10.1002/anie.201813533] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Zachariah J. Berkson
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
| | - Ming‐Feng Hsieh
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Present address: Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Stef Smeets
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
- Present address: Kavli Institute of Nanoscience Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - David Gajan
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Alicia Lund
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Anne Lesage
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Dan Xie
- Chevron Energy Technology Company Richmond CA 94802 USA
| | | | - Lynne B. McCusker
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Christian Baerlocher
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Bradley F. Chmelka
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
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Abstract
The Cross-Effect (CE) Dynamic Nuclear Polarization (DNP) mechanism under Magic Angle Spinning (MAS) induces depletion or "depolarization" of the NMR signal, in the absence of microwave irradiation. In this study, the role of T1e on nuclear depolarization under MAS was tested experimentally by systematically varying the local and global electron spin concentration using mono-, bi- and tri-radicals. These spin systems show different depolarization effects that systematically tracked with their different T1e rates, consistent with theoretical predictions. In order to test whether the effect of T1e is directly or indirectly convoluted with other spin parameters, the tri-radical system was doped with different concentrations of GdCl3, only tuning the T1e rates, while keeping other parameters unchanged. Gratifyingly, the changes in the depolarization factor tracked the changes in the T1e rates. The experimental results are corroborated by quantum mechanics based numerical simulations which recapitulated the critical role of T1e. Simulations showed that the relative orientation of the two g-tensors and e-e dipolar interaction tensors of the CE fulfilling spin pair also plays a major role in determining the extent of depolarization, besides the enhancement. This is expected as orientations influence the efficiency of the various level anti-crossings or the "rotor events" under MAS. However, experimental evaluation of the empirical spectral diffusion parameter at static condition showed that the local vs. global e-e dipolar interaction network is not a significant variable in the commonly used nitroxide radical system studied here, leaving T1e rates as the major modulator of depolarization.
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Affiliation(s)
- Alicia Lund
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106-9510, USA.
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23
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Wisser D, Karthikeyan G, Lund A, Casano G, Karoui H, Yulikov M, Menzildjian G, Pinon AC, Purea A, Engelke F, Chaudhari SR, Kubicki D, Rossini AJ, Moroz IB, Gajan D, Copéret C, Jeschke G, Lelli M, Emsley L, Lesage A, Ouari O. BDPA-Nitroxide Biradicals Tailored for Efficient Dynamic Nuclear Polarization Enhanced Solid-State NMR at Magnetic Fields up to 21.1 T. J Am Chem Soc 2018; 140:13340-13349. [DOI: 10.1021/jacs.8b08081] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dorothea Wisser
- Institut de Sciences Analytiques, Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | | | - Alicia Lund
- Institut de Sciences Analytiques, Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Gilles Casano
- AixMarseille Univ, CNRS, ICR, 13013 Marseille, France
| | - Hakim Karoui
- AixMarseille Univ, CNRS, ICR, 13013 Marseille, France
| | - Maxim Yulikov
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland
| | - Georges Menzildjian
- Institut de Sciences Analytiques, Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Arthur C. Pinon
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | | | | | - Sachin R. Chaudhari
- Institut de Sciences Analytiques, Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Dominik Kubicki
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Aaron J. Rossini
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Ilia B. Moroz
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland
| | - David Gajan
- Institut de Sciences Analytiques, Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland
| | - Gunnar Jeschke
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland
| | - Moreno Lelli
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
- Magnetic Resonance Center (CERM), University of Florence, Via L. Sacconi 6, 50019 Sesto Fiorentino, Florence, Italy
| | - Lyndon Emsley
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Anne Lesage
- Institut de Sciences Analytiques, Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Olivier Ouari
- AixMarseille Univ, CNRS, ICR, 13013 Marseille, France
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24
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Guiastrennec B, Sonne DP, Hansen M, Bagger JI, Lund A, Rehfeld JF, Alskär O, Karlsson MO, Vilsbøll T, Knop FK, Bergstrand M. Mechanism-Based Modeling of Gastric Emptying Rate and Gallbladder Emptying in Response to Caloric Intake. CPT Pharmacometrics Syst Pharmacol 2017; 5:692-700. [PMID: 28028939 PMCID: PMC5192972 DOI: 10.1002/psp4.12152] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/11/2016] [Accepted: 10/24/2016] [Indexed: 02/06/2023]
Abstract
Bile acids released postprandially modify the rate and extent of absorption of lipophilic compounds. The present study aimed to predict gastric emptying (GE) rate and gallbladder emptying (GBE) patterns in response to caloric intake. A mechanism‐based model for GE, cholecystokinin plasma concentrations, and GBE was developed on data from 33 patients with type 2 diabetes and 33 matched nondiabetic individuals who were administered various test drinks. A feedback action of the caloric content entering the proximal small intestine was identified for the rate of GE. The cholecystokinin concentrations were not predictive of GBE, and an alternative model linking the nutrients amount in the upper intestine to GBE was preferred. Relative to fats, the potency on GBE was 68% for proteins and 2.3% for carbohydrates. The model predictions were robust across a broad range of nutritional content and may potentially be used to predict postprandial changes in drug absorption.
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Affiliation(s)
- B Guiastrennec
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - D P Sonne
- Center for Diabetes Research, Department of Medicine, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - M Hansen
- Center for Diabetes Research, Department of Medicine, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark.,Current workplace: Novo Nordisk A/S, Bagsvaerd, Denmark
| | - J I Bagger
- Center for Diabetes Research, Department of Medicine, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - A Lund
- Center for Diabetes Research, Department of Medicine, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - J F Rehfeld
- Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - O Alskär
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - M O Karlsson
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - T Vilsbøll
- Center for Diabetes Research, Department of Medicine, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - F K Knop
- Center for Diabetes Research, Department of Medicine, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - M Bergstrand
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
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25
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Lund A, Sørensen H, Jensen TW, Niemann MJ, Olesen ND, Nielsen HB, Olsen NV, Secher NH. Muscle oxygen saturation increases during head-up tilt-induced (pre)syncope. Acta Physiol (Oxf) 2017; 221:74-80. [PMID: 28262007 DOI: 10.1111/apha.12863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 01/26/2017] [Revised: 02/18/2017] [Accepted: 02/23/2017] [Indexed: 11/28/2022]
Abstract
AIM To evaluate whether muscle vasodilatation plays a role for hypotension developed during central hypovolaemia, muscle oxygenation (Sm O2 ) was examined during (pre)syncope induced by head-up tilt (HUT). Skin blood flow (SkBF) and oxygenation (Sskin O2 ) were determined because evaluation of Sm O2 may be affected by superficial tissue oxygenation. Furthermore, we evaluated cerebral oxygenation (Sc O2 ) and middle cerebral artery mean blood flow velocity (MCAvmean ). METHODS Twenty healthy male volunteers (median age 24 years; range 19-38) were subjected to passive 50° HUT for 1 h or until (pre)syncope. Sc O2 and Sm O2 (near-infrared spectroscopy), MCAvmean (transcranial Doppler) along with mean arterial pressure (MAP), heart rate (HR), stroke volume (SV), cardiac output (CO) and total peripheral resistance (TPR) (Modelflow® ) were determined. RESULTS (Pre)syncopal symptoms appeared in 17 subjects after 11 min (median; range 2-34) accompanied by a decrease in MAP, SV, CO and TPR, while HR remained elevated. During (pre)syncope, Sc O2 decreased [73% (71-76; mean and 95% CI) to 68% (65-71), P < 0.0001] along with MCAvmean [40 (37-43) to 32 (29-35) cm s-1 , P < 0.0001]. In contrast, Sm O2 increased [63 (56-69)% to 71% (65-78), P < 0.0001], while Sskin O2 [64% (58-69) to 53% (47-58), P < 0.0001] and SkBF [71 (44-98) compared to a baseline of 99 (72-125) units, P = 0.020] were reduced. CONCLUSION We confirm that the decrease in MAP during HUT is associated with a reduction in indices of cerebral perfusion. (Pre)syncope was associated with an increase in Sm O2 despite reduced Sskin O2 and SkBF, supporting that muscle vasodilation plays an important role in the circulatory events leading to hypotension during HUT.
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Affiliation(s)
- A. Lund
- Department of Neuroanaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
| | - H. Sørensen
- The Copenhagen Muscle Research Centre; Department of Anaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
| | - T. W. Jensen
- The Copenhagen Muscle Research Centre; Department of Anaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
| | - M. J. Niemann
- The Copenhagen Muscle Research Centre; Department of Anaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
| | - N. D. Olesen
- The Copenhagen Muscle Research Centre; Department of Anaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
- Department of Neuroscience and Pharmacology; University of Copenhagen; Copenhagen Denmark
| | - H. B. Nielsen
- The Copenhagen Muscle Research Centre; Department of Anaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
| | - N. V. Olsen
- Department of Neuroanaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
- Department of Neuroscience and Pharmacology; University of Copenhagen; Copenhagen Denmark
| | - N. H. Secher
- The Copenhagen Muscle Research Centre; Department of Anaesthesia; Rigshospitalet; University of Copenhagen; Copenhagen Denmark
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26
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Garchitorena A, Sokolow SH, Roche B, Ngonghala CN, Jocque M, Lund A, Barry M, Mordecai EA, Daily GC, Jones JH, Andrews JR, Bendavid E, Luby SP, LaBeaud AD, Seetah K, Guégan JF, Bonds MH, De Leo GA. Disease ecology, health and the environment: a framework to account for ecological and socio-economic drivers in the control of neglected tropical diseases. Philos Trans R Soc Lond B Biol Sci 2017; 372:20160128. [PMID: 28438917 PMCID: PMC5413876 DOI: 10.1098/rstb.2016.0128] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2017] [Indexed: 01/27/2023] Open
Abstract
Reducing the burden of neglected tropical diseases (NTDs) is one of the key strategic targets advanced by the Sustainable Development Goals. Despite the unprecedented effort deployed for NTD elimination in the past decade, their control, mainly through drug administration, remains particularly challenging: persistent poverty and repeated exposure to pathogens embedded in the environment limit the efficacy of strategies focused exclusively on human treatment or medical care. Here, we present a simple modelling framework to illustrate the relative role of ecological and socio-economic drivers of environmentally transmitted parasites and pathogens. Through the analysis of system dynamics, we show that periodic drug treatments that lead to the elimination of directly transmitted diseases may fail to do so in the case of human pathogens with an environmental reservoir. Control of environmentally transmitted diseases can be more effective when human treatment is complemented with interventions targeting the environmental reservoir of the pathogen. We present mechanisms through which the environment can influence the dynamics of poverty via disease feedbacks. For illustration, we present the case studies of Buruli ulcer and schistosomiasis, two devastating waterborne NTDs for which control is particularly challenging.This article is part of the themed issue 'Conservation, biodiversity and infectious disease: scientific evidence and policy implications'.
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Affiliation(s)
- A Garchitorena
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA 02115, USA
- PIVOT, Division of Global Health Equity, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - S H Sokolow
- Department of Biology, Hopkins Marine Station, Stanford University, Pacific Grove, CA 93950, USA
| | - B Roche
- UMI UMMISCO 209 IRD/UPMC - Bondy, France
- UMR MIVEGEC 5290 CNRS - IRD - Université de Montpellier, Montpellier, France
| | - C N Ngonghala
- Department of Mathematics, University of Florida, Gainesville, FL 32611, USA
| | - M Jocque
- Department of Biology, Hopkins Marine Station, Stanford University, Pacific Grove, CA 93950, USA
| | - A Lund
- Emmett Interdisciplinary Program in Environment and Resources, Stanford University, Stanford, CA 94305, USA
| | - M Barry
- Center for Innovation in Global Health, Stanford University, Stanford, CA 94305, USA
| | - E A Mordecai
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - G C Daily
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - J H Jones
- Department of Earth System Science, Stanford University, Stanford, CA 94305, USA
- Department of Life Sciences, Imperial College, London, UK
| | - J R Andrews
- Department of Medicine, Stanford University, Stanford, CA 94305, USA
| | - E Bendavid
- Department of Medicine, Stanford University, Stanford, CA 94305, USA
| | - S P Luby
- Center for Innovation in Global Health, Stanford University, Stanford, CA 94305, USA
| | - A D LaBeaud
- Department of Pediatrics, Division of Infectious Diseases, Stanford University, Stanford, CA 94305, USA
| | - K Seetah
- Department of Anthropology, Stanford University, Stanford, CA 94305, USA
| | - J F Guégan
- UMR MIVEGEC 5290 CNRS - IRD - Université de Montpellier, Montpellier, France
- Future Earth international programme, OneHealth core research programme, Montréal, Canada
| | - M H Bonds
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA 02115, USA
- PIVOT, Division of Global Health Equity, Brigham and Women's Hospital, Boston, MA 02115, USA
- Department of Medicine, Stanford University, Stanford, CA 94305, USA
| | - G A De Leo
- Department of Biology, Hopkins Marine Station, Stanford University, Pacific Grove, CA 93950, USA
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27
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Brødsgaard A, Dieperink KB, Konradsen H, Lund A, Sorknaes AD, Voltelen B, Østergaard B. Report of the 12th International Family Nursing Conference: Improving Family Health Globally Through Research, Education, and Practice, Odense, Denmark, 2015. J Fam Nurs 2016; 22:139-147. [PMID: 27165752 DOI: 10.1177/1074840716646311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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28
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Siaw TA, Leavesley A, Lund A, Kaminker I, Han S. A versatile and modular quasi optics-based 200GHz dual dynamic nuclear polarization and electron paramagnetic resonance instrument. J Magn Reson 2016; 264:131-153. [PMID: 26920839 PMCID: PMC4770585 DOI: 10.1016/j.jmr.2015.12.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/19/2015] [Accepted: 12/21/2015] [Indexed: 05/12/2023]
Abstract
Solid-state dynamic nuclear polarization (DNP) at higher magnetic fields (>3T) and cryogenic temperatures (∼ 2-90K) has gained enormous interest and seen major technological advances as an NMR signal enhancing technique. Still, the current state of the art DNP operation is not at a state at which sample and freezing conditions can be rationally chosen and the DNP performance predicted a priori, but relies on purely empirical approaches. An important step towards rational optimization of DNP conditions is to have access to DNP instrumental capabilities to diagnose DNP performance and elucidate DNP mechanisms. The desired diagnoses include the measurement of the "DNP power curve", i.e. the microwave (MW) power dependence of DNP enhancement, the "DNP spectrum", i.e. the MW frequency dependence of DNP enhancement, the electron paramagnetic resonance (EPR) spectrum, and the saturation and spectral diffusion properties of the EPR spectrum upon prolonged MW irradiation typical of continuous wave (CW) DNP, as well as various electron and nuclear spin relaxation parameters. Even basic measurements of these DNP parameters require versatile instrumentation at high magnetic fields not commercially available to date. In this article, we describe the detailed design of such a DNP instrument, powered by a solid-state MW source that is tunable between 193 and 201 GHz and outputs up to 140 mW of MW power. The quality and pathway of the transmitted and reflected MWs is controlled by a quasi-optics (QO) bridge and a corrugated waveguide, where the latter couples the MW from an open-space QO bridge to the sample located inside the superconducting magnet and vice versa. Crucially, the versatility of the solid-state MW source enables the automated acquisition of frequency swept DNP spectra, DNP power curves, the diagnosis of MW power and transmission, and frequency swept continuous wave (CW) and pulsed EPR experiments. The flexibility of the DNP instrument centered around the QO MW bridge will provide an efficient means to collect DNP data that is crucial for understanding the relationship between experimental and sample conditions, and the DNP performance. The modularity of this instrumental platform is suitable for future upgrades and extensions to include new experimental capabilities to meet contemporary DNP needs, including the simultaneous operation of two or more MW sources, time domain DNP, electron double resonance measurements, pulsed EPR operation, or simply the implementation of higher power MW amplifiers.
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Affiliation(s)
- Ting Ann Siaw
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, United States
| | - Alisa Leavesley
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, United States
| | - Alicia Lund
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, United States
| | - Ilia Kaminker
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, United States
| | - Songi Han
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, United States.
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29
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Bayat A, Yasmeen S, Lund A, Nielsen JB, Møller LB. Mutational and phenotypical spectrum of phenylalanine hydroxylase deficiency in Denmark. Clin Genet 2015; 90:247-51. [PMID: 26542770 DOI: 10.1111/cge.12692] [Citation(s) in RCA: 9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 10/16/2015] [Accepted: 11/03/2015] [Indexed: 11/30/2022]
Abstract
We describe the genotypes of the complete cohort, from 1967 to 2014, of phenylketonuria (PKU) patients in Denmark, in total 376 patients. A total of 752 independent alleles were investigated. Mutations were identified on 744 PKU alleles (98.9%). In total, 82 different mutations were present in the cohort. The most frequent mutation c.1315+1G>A (IVS12+1G>A) was found on 25.80% of the 744 alleles. Other very frequent mutations were c.1222C>T (p.R408W) (16.93%) and c.1241A>G (p.Y414C) (11.15%). Among the identified mutations, five mutations; c.532G>A (p.E178K), c.730C>T (p.P244S), c.925G>A (p.A309T), c.1228T>A (p.F410I), and c.1199+4A>G (IVS11+4A>G) have not been reported previously. The metabolic phenotypes of PKU are classified into four categories; 'classical PKU', 'moderate PKU', 'mild PKU' and 'mild hyperphenylalaninemia'. In this study, we assigned the phenotypic outcome of three of the five novel mutations and furthermore six not previously classified mutations to one of the four PKU categories.
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Affiliation(s)
- A Bayat
- Clinical Genetic Clinic, Kennedy Center, Copenhagen University Hospital, Glostrup, Denmark.,Department of Pediatrics Hvidovre Hospital Kettegård Alle 30, 2650 Hvidovre, Denmark
| | - S Yasmeen
- Clinical Genetic Clinic, Kennedy Center, Copenhagen University Hospital, Glostrup, Denmark
| | - A Lund
- Clinical Genetic Clinic, Centre for Inherited Metabolic Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - J B Nielsen
- Clinical Genetic Clinic, Kennedy Center, Copenhagen University Hospital, Glostrup, Denmark
| | - L B Møller
- Department of Science, Systems and Models (NSM), Roskilde University, DK 4000 Roskilde, Denmark
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Abstract
Harmonisation of regulations in the European Union and the European Economic Area, as of January 1, 2012, has led to an increase in the number of rescue dogs imported to Norway from Eastern European countries, in particular Romania. Today the only requirements for dogs entering Norway are rabies vaccination and prophylactic Echinococcus multilocularis treatment. The aim of this study was to investigate the antibody levels to rabies virus in vaccinated rescue dogs and to examine if the dogs had sufficient antibody response according to the recommended titre ≥0.5 IU/ml by the World Organisation for Animal Health (OIE). A significant proportion (53%, 95% CI (41% to 65%)) of imported rescue dogs from Eastern Europe were found to have inadequate titres after rabies vaccination. Moreover, 41 per cent of the dogs had antibody levels below or equal to 0.2 IU/ml, and among these, 14 dogs had titres ≤0.1 IU/ml, which is considered negative in the fluorescent antibody virus neutralisation assay. This study indicates that the present regulation increases the risk of introducing rabies from member states where rabies is still prevalent to countries considered free from rabies.
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Affiliation(s)
- S Klevar
- Norwegian Veterinary Institute, Postboks 750 Sentrum, Oslo, Norway
| | - H R Høgåsen
- Norwegian Veterinary Institute, Postboks 750 Sentrum, Oslo, Norway
| | - R K Davidson
- Norwegian Veterinary Institute, Postboks 750 Sentrum, Oslo, Norway
| | - I S Hamnes
- Norwegian Veterinary Institute, Postboks 750 Sentrum, Oslo, Norway
| | | | - A Lund
- Norwegian Veterinary Institute, Postboks 750 Sentrum, Oslo, Norway
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Abstract
This is the first study demonstrating the viability of targeted 27Al DNP characterization by varying the functional side groups of mono-radical spin probes.
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Affiliation(s)
- Alicia Lund
- Department of Chemistry and Biochemistry University of California Santa Barbara
- Santa Barbara
- USA
| | - Ming-Feng Hsieh
- Department of Chemical Engineering University of California Santa Barbara
- Santa Barbara
- USA
| | - Ting-Ann Siaw
- Department of Chemistry and Biochemistry University of California Santa Barbara
- Santa Barbara
- USA
| | - Song-I. Han
- Department of Chemistry and Biochemistry University of California Santa Barbara
- Santa Barbara
- USA
- Department of Chemical Engineering University of California Santa Barbara
- Santa Barbara
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32
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Abstract
A new matrix, 1,1,1-trifluorotrichloroethane, CF3CCl3, has been employed in radiation chemistry studies to stabilise positive ions. As a test, positive ions of benzene, toluene, orto-, meta- and paraxylene and biphenyl have been generated by y-irradiation of the solutes contained in the CF3CCl3 matrix at 77 K. The ions have been investigated by ESR, and hyperfine couplings have been obtained. The data complement and correct the splitting values obtained previously in the adsorbed state.
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Affiliation(s)
- M. Tabata
- The Studsvik Science Research Laboratory, S-611 82 Nyköping, Sweden
| | - A. Lund
- The Studsvik Science Research Laboratory, S-611 82 Nyköping, Sweden
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33
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Siaw TA, Fehr M, Lund A, Latimer A, Walker SA, Edwards DT, Han SI. Effect of electron spin dynamics on solid-state dynamic nuclear polarization performance. Phys Chem Chem Phys 2014; 16:18694-706. [DOI: 10.1039/c4cp02013h] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Optimum integral EPR saturation, determined by electron T1e and electron spin flip-flop rate, maximizes solid-state DNP performance using nitroxide radicals.
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Affiliation(s)
- Ting Ann Siaw
- Department of Chemical Engineering
- University of California Santa Barbara
- Santa Barbara, USA
| | - Matthias Fehr
- Department of Chemistry and Biochemistry
- University of California Santa Barbara
- Santa Barbara, USA
| | - Alicia Lund
- Department of Chemistry and Biochemistry
- University of California Santa Barbara
- Santa Barbara, USA
| | - Allegra Latimer
- Department of Chemistry and Biochemistry
- University of California Santa Barbara
- Santa Barbara, USA
| | - Shamon A. Walker
- Department of Chemical Engineering
- University of California Santa Barbara
- Santa Barbara, USA
| | - Devin T. Edwards
- Department of Physics
- University of California Santa Barbara
- Santa Barbara, USA
| | - Song-I Han
- Department of Chemical Engineering
- University of California Santa Barbara
- Santa Barbara, USA
- Department of Chemistry and Biochemistry
- University of California Santa Barbara
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35
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Krogenæs A, Rootwelt V, Larsen S, Sjøberg EK, Akselsen B, Skår TM, Myhre SS, Renström LHM, Klingeborn B, Lund A. A serologic study of canine herpes virus-1 infection in the Norwegian adult dog population. Theriogenology 2012; 78:153-8. [PMID: 22494683 DOI: 10.1016/j.theriogenology.2012.01.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 01/26/2012] [Accepted: 01/27/2012] [Indexed: 11/28/2022]
Abstract
Canine herpes virus-1 (CHV1) causes a fatal hemorrhagic disease in neonatal puppies and is associated with reproductive problems in female dogs. This serologic study was conducted to assess the seroprevalence of CHV1 infection in Norway. Blood samples were collected from clinically healthy dogs (n = 436) one yr of age and older of both genders, supplied by four small animal clinics (A, B, C and D) in different parts of the country. The immunoperoxidase monolayer assay was used for testing of CHV1 antibodies. Serum titers were recorded as the reciprocal value of the highest dilution producing specific cell staining. Titers equal to or above 80 were considered positive for exposure to CHV1. In total, 80.0% of the dogs had titers ≥80 and were classified as positive. Mean age for seronegative dogs was 4.7 yrs (95% CI 4.1-5.4) and for seropositive dogs 5.0 yrs (95% CI 4.7-5.4). Of the dogs, 32.8% displayed a weakly positive titer of 80, whereas 41.5 and 5.7% fell into the moderately (titer 160 and 320) and strongly (titer ≥640) positive categories, respectively. No association was demonstrated when comparing CHV1 antibody titers to gender or reproductive parameters like previous matings, pregnancies, births or number of puppies born. Age, visit in foreign countries and clinic explained together 78% of the variation in antibody titer categories. The percentage of positive samples differed significantly between the four clinics (A 98%, B 58.5%, C 74.6%, D 89.5%). A reasonable explanation for this finding has not been established. No information about an ongoing outbreak of CHV1 infection was available. In conclusion, this study strongly indicates that CHV1 infection is endemic in the dog population of Norway. There are significant differences in seroprevalence between geographic regions in the country.
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Affiliation(s)
- A Krogenæs
- Norwegian School of Veterinary Science, Department of Large Animal Clinical Sciences, Oslo, Norway.
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Abstract
AIMS Previous studies report an increased risk of depression in patients with diabetes, but there is little knowledge about if or how the risk varies according to sex, groups of age and different type of treatments for the diabetes. We therefore aimed to investigate the risk of depression in different types of treatment for diabetes and in subgroups of age and sex. METHODS Data on the Norwegian population from 20 years of age being prescribed antidepressants (n = 253 668) and anti-diabetic agents (n = 121 392) in 2006 was obtained from the National Register of Prescriptions and analysed in a cross-sectional design. RESULTS Individuals using insulin in monotherapy (n = 29 611) had an age- and sex-adjusted odds ratio of 1.47 (95% CI 1.42-1.53) for receiving antidepressants. Corresponding odds ratios for individuals receiving oral anti-diabetic agents in monotherapy (n = 76 387) and for those who received both insulin and oral anti-diabetic agents (n = 15 394) were 1.44 (95% CI 1.41-1.47) and 1.82 (95% CI 1.80-1.97), respectively. No major differences in risk according to age were found for persons receiving insulin in monotherapy, while a marked and inverse association between age and risk of receiving antidepressants was found for those receiving oral anti-diabetic agents. Highest risk of antidepressant treatment [odds ratio 4.15 (95% CI 3.12-5.52)] was found for patients receiving both oral anti-diabetic agents and insulin at 30-39 years. The risk was equally increased among men and women. CONCLUSIONS The risk of depression among patients with diabetes varies strongly according to age and type of treatment for diabetes.
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Affiliation(s)
- L I Berge
- Department of Clinical Medicine, Section of Psychiatry, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway.
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Tveritinova EA, Kulakova II, Zhitnev YN, Fionov AV, Lund A, Chen W, Buyanova I, Lunin VV. Catalytic conversion of C2-C3 alcohols on detonation nanodiamond and its modifications. Russ J Phys Chem 2011. [DOI: 10.1134/s0036024412010281] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lund A, Michelet M, Sandvik L, Wyller T, Sveen U. A lifestyle intervention as supplement to a physical activity programme in rehabilitation after stroke: a randomized controlled trial. Clin Rehabil 2011; 26:502-12. [PMID: 22169830 DOI: 10.1177/0269215511429473] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To evaluate the effectiveness of lifestyle group intervention on well-being, occupation and social participation. DESIGN A randomized controlled trial. SETTING Senior centres in the community. SUBJECTS Of 204 stroke survivors screened, 99 (49%) were randomized three months after stroke whereby 86 (87%) participants (mean (SD) age 77.0 (7.1) years) completed all assessments (39 in the intervention group and 47 in the control group). INTERVENTION A lifestyle course in combination with physical activity (intervention group) compared with physical activity alone (control group). Both programmes were held once a week for nine months. MAIN OUTCOME MEASURE The Short Form Questionnaire (SF-36), addressing well-being and social participation. Assessments were performed at baseline and at nine months follow-up. RESULTS We found no statistically significant differences between the groups at the nine months follow-up in the SF-36. Adjusted mean differences in change scores in the eight subscales of SF-36 were; 'mental health' (+1.8, 95% confidence interval (CI) -4.0, +7.6), 'vitality' (-3.0, 95% CI -9.6, +3.6), 'bodily pain' (+3.3, 95% CI -7.8, +14.4), 'general health' (-1.6, 95% CI -8.4, +5.1), 'social functioning' (-2.5, 95% CI -12.8, +7.8), 'physical functioning' (+1.0, 95% CI -6.7, +8.6), 'role physical' (-7.1, 95% CI -22.7, +8.4), 'role emotional' (+11.8, 95% CI -4.4, +28.0). CONCLUSIONS Improvements were seen in both groups, but no statistically significant differences were found in the intervention group compared to controls. An intervention comprising regular group-based activity with peers may be sufficient in the long-term rehabilitation after stroke.
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Affiliation(s)
- A Lund
- Oslo University Hospital, Geriatric Medicine, Oslo, Norway.
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Abstract
Glucagon secretion plays an essential role in the regulation of hepatic glucose production, and elevated fasting and postprandial plasma glucagon concentrations in patients with type 2 diabetes (T2DM) contribute to their hyperglycaemia. The reason for the hyperglucagonaemia is unclear, but recent studies have shown lack of suppression after oral but preserved suppression after isoglycaemic intravenous glucose, pointing to factors from the gut. Gastrointestinal hormones that are secreted in response to oral glucose include glucagon-like peptide-1 (GLP-1) that strongly inhibits glucagon secretion, and GLP-2 and GIP, both of which stimulate secretion. When the three hormones are given together on top of isoglycaemic intravenous glucose, glucagon suppression is delayed in a manner similar to that observed after oral glucose. Studies with the GLP-1 receptor antagonist, exendin 9-39, suggest that endogenous GLP-1 plays an important role in regulation of glucagon secretion during fasting as well as postprandially. The mechanisms whereby GLP-1 regulates glucagon secretion are debated, but studies in isolated perfused rat pancreas point to an important role for a paracrine regulation by somatostatin from neighbouring D cells. Clinical studies of the antidiabetic effect of GLP-1 in T2DM suggest that the inhibition of glucagon secretion is as important as the stimulation of insulin secretion.
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Affiliation(s)
- J J Holst
- Department of Biomedical Sciences, Panum Institute, University of Copenhagen, Copenhagen, Denmark.
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Schmid M, Strand M, Ardal G, Lund A, Hammar A. Prolonged Impairment in Inhibition and Semantic Fluency in a Follow-up Study of Recurrent Major Depression. Arch Clin Neuropsychol 2011; 26:677-86. [DOI: 10.1093/arclin/acr048] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [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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Matope G, Muma J, Toft N, Gori E, Lund A, Nielsen K, Skjerve E. Evaluation of sensitivity and specificity of RBT, c-ELISA and fluorescence polarisation assay for diagnosis of brucellosis in cattle using latent class analysis. Vet Immunol Immunopathol 2011; 141:58-63. [DOI: 10.1016/j.vetimm.2011.02.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Revised: 01/28/2011] [Accepted: 02/09/2011] [Indexed: 11/28/2022]
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Ørpetveit I, Ytrehus B, Vikøren T, Handeland K, Mjøs A, Nissen S, Blystad H, Lund A. Rabies in an Arctic fox on the Svalbard archipelago, Norway, January 2011. Euro Surveill 2011. [DOI: 10.2807/ese.16.07.19797-en] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Binary file ES_Abstracts_Final_ECDC.txt matches
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Affiliation(s)
- I Ørpetveit
- Norwegian Veterinary Institute, Oslo, Norway
| | - B Ytrehus
- Norwegian Veterinary Institute, Oslo, Norway
| | - T Vikøren
- Norwegian Veterinary Institute, Oslo, Norway
| | - K Handeland
- Norwegian Veterinary Institute, Oslo, Norway
| | - A Mjøs
- Norwegian Food Safety Authority, Oslo, Norway
| | - S Nissen
- Longyearbyen hospital, Longyearbyen, Svalbard, Norway
| | - H Blystad
- Norwegian Institute of Public Health, Oslo, Norway
| | - A Lund
- Norwegian Veterinary Institute, Oslo, Norway
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Orpetveit I, Ytrehus B, Vikoren T, Handeland K, Mjos A, Nissen S, Blystad H, Lund A. Rabies in an Arctic fox on the Svalbard archipelago, Norway, January 2011. Euro Surveill 2011; 16:19797. [PMID: 21345322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
We report a case of rabies in an Arctic fox. In January 2011 a fox attacked dogs belonging to a meteorological station in the Svalbard archipelago, Norway. Rabies virus was detected in the fox's brain post-mortem. The dogs had been vaccinated against rabies and their antibody levels were protective. Post-exposure prophylaxis was administered to staff at the station. Rabies vaccination is recommended for inhabitants and visitors to the Arctic who may be in contact with wild animals.
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Affiliation(s)
- I Orpetveit
- Norwegian Veterinary Institute, Oslo, Norway
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Matope G, Bhebhe E, Muma J, Lund A, Skjerve E. Herd-level factors for Brucella seropositivity in cattle reared in smallholder dairy farms of Zimbabwe. Prev Vet Med 2010; 94:213-21. [DOI: 10.1016/j.prevetmed.2010.01.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 11/05/2009] [Accepted: 01/01/2010] [Indexed: 10/19/2022]
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Kühn I, Katouli M, Lund A, Wallgren P, Möllby R. Phenotypic Diversity and Stability of the Intestinal Coliform Flora in Piglets During the First 3 Months of Age. Microbial Ecology in Health and Disease 2009. [DOI: 10.3109/08910609309141313] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- I. Kühn
- Department of Bacteriology, Karolinska Institute, S-104 01, Stockholm, Sweden
- Department of Bacteriology, National Bacteriological Laboratory, S-105 21, Stockholm, Sweden
| | - M. Katouli
- Department of Bacteriology, Karolinska Institute, S-104 01, Stockholm, Sweden
| | - A. Lund
- Department of Bacteriology, Karolinska Institute, S-104 01, Stockholm, Sweden
- Department of Animal Nutrition and Management, Funbo-Lövsta Research Station, S-755 97, Uppsala, Sweden
| | - P. Wallgren
- The National Veterinary Institute, S-750 07, Uppsala, Sweden
- Department of Veterinary Bacteriology, Division of Immunology, Swedish University of Agricultural Sciences, S-75J 23, Uppsala, Sweden
| | - R. Möllby
- Department of Bacteriology, Karolinska Institute, S-104 01, Stockholm, Sweden
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Bisgaard AM, Kirchhoff M, Nielsen JE, Kibaek M, Lund A, Schwartz M, Christensen E. Chromosomal deletion unmasking a recessive disease: 22q13 deletion syndrome and metachromatic leukodystrophy. Clin Genet 2009; 75:175-9. [DOI: 10.1111/j.1399-0004.2008.01113.x] [Citation(s) in RCA: 20] [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: 02/03/2023]
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Abstract
Objective:Depressed patients tend to under-estimate their everyday memory function. Whether this under-estimation is related to the depressive state, or whether it represents underlying personality traits present also between or after depressive episodes, is not clear.Methods:Comparisons of subjective memory evaluation as measured by the Everyday Memory Questionnaire (EMQ) were made between sub-groups with Current Depression (N=14), Previous Depression (N=19), and Healthy Controls (N=10). Analyses were adjusted for effects of sociodemographic variables, use of medication, and premorbid intellectual abilities (Similarities sub-test (WASI)). To assess the relationship between affective state and subjective memory function irrespective of actual memory performance, adjustment for objective memory performance as represented by the Total recall sub-task from CVLT and Long-delayed free recall from RCFT was included in a final step in the ANCOVA model.Results:The overall crude relationship between group and EMQ total score was significant (F(2,40)=4.11, p=0.011, eta sq.= .17). In posthoc follow-up tests, the Currently Depressed reported significantly lower on EMQ than both Previously Depressed and Controls (Dunnett's C test, p= .018 and p= .034, respectively). However, after adjustment for relevant confounders and mediators, both the Previously and Currently Depressed performed significantly worse on EMQ compared to Controls (overall ANCOVA F(2,33)=9.22, p= .001, eta sq.= .36; pairwise follow-ups p= .001 and p= .011, respectively).Conclusion:Depressed patients’ under-estimation of their memory function is independent of mood state and it may represent a vulnerability or personality structure involving negative cognitive patterns that may be successfully targeted by cognitive therapy.
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Vind AB, Andersen HE, Schwarz P, Skalska A, Salakowski A, Dubiel M, Fedak D, Grodzicki T, Annweiler C, Schott AM, Fantino B, Berrut G, Herrmann F, Beauchet O, Engels S, Schroll M, Popescu C, Onose G, Bojan A, van Zutphen M, Bemelmans W, de Groot L, Rea IM, Henry M, Young IS, Evans AE, Kee F, Ambien CF, Whitehead AS, Ryzhak G, Khavinson V, Kozlov L, Povoroznyuk V, Kivela SL, Nielsen DS, Nielsen W, Knold B, Ryg J, Nissen N, Brixen K, Bjorkman M, Sorva A, Tilvis R, Kannegaard PN, Jung A, Simonsen F, Sanders S, Puustinen J, Nurminen J, Lopponen M, Vahlberg T, Isoaho R, Kivela SL, Hayashi T, Ina K, Nomura H, Iguchi A, Rea IM, Henry M, Evans AE, Tiret L, Poire O, Cambien F, Pautex S, Notaridis G, Derame L, Zulian G, Ungar A, Fedeli A, Zanieri S, Pecchioni S, Belladonna M, Lambertucci L, Lotti E, Pepe G, Bambi A, Morrione A, Masotti G, Marchionni M, Mazzella F, Napoli C, Vitale DF, Viati L, Longobardi G, Lucchetti G, Abete P, Rengo F, Pautex S, Herrmann F, le Lous P, Gold G, Lihavainen K, Sipila S, Rantanenv T, Hartikainen S, Biswas S, Willicombe S, Myint P, Rashidi F, Gillain D, Van Den Noortgate N, Van Der Mark S, Petersen H, Sejtved B, Melton R, Mur AZ, Catevilla AZ, Boix LA, Jordá P, Ranhoff AH, González E, Florian J, Bueso P, Nuotio M, Luukkaala T, Tammela TLJ, Jylhä M, De Antonio García MP, De Abia PG, Bergua AA, Mowinckel P, Orozco MC, Ruiz MC, Verdejo-Bravo C, De Saint-Hubert M, Divoy C, Schoevaerdts D, Swine C, Heppner HJ, Sieber C, Bertsch T, Volpato S, Heppner HJ, Sieber C, Heppner HJ, Sieber C, Heppner HJ, Sieber C, Michael A, Scoyni R, Trani I, Schiaffini C, Sioulis F, Felli B, Aiello L, Belli P, Pacitti MT, Morelli A, D’imperio M, Falanga A, Carratelli D, Morocutti M, Kitisomprayoonkul W, Guerra G, Promsopa K, Chaiwanichsiri D, Ochiana V, Ghorghe S, Popescu G, Tekeira A, Khayat M, Povoroznyuk V, Grygoryeva N, Dzerovych N, Cavalieri M, Karasevskaya T, Mowe M, Skalska A, Fedak D, Grodzicki T, Soda K, Kano Y, Shingo T, Konishi F, Kawakami M, Maraldi C, Ulger Z, Cankurtaran M, Halil M, Yavuz BB, Orhan B, Dede D, Kavas GO, Kocaturk PA, Akyol O, Ariogul S, Guralnik JM, Pircalabu R, Hnidei R, Morosanu B, Rada C, Ionescu C, Yamada M, Kasagi F, Tatsukawa Y, Sasaki H, Alcalde P, Fellin R, Luque M, García M, Ariño S, Carmona G, Rizzoli R, Ammann P, Pressel E, Eddy C, Lilja A, Rønholt F, Pilotto A, Danbaek L, Van der Mark S, Ammann P, Kream B, Rosen C, Rizzoli R, Dubois-Ferrière V, Rizzoli R, Ammann P, Ditloto G, Addante F, Hussain W, Farrelly E, Marsden P, Brewer L, Fallon C, Murphy S, Jørgensen NR, Husted LB, Tofteng CL, Jensen JEB, Franceschi M, Eiken P, Nissen N, Langdahl BL, Schwarz P, Mcintosh S, Lacey E, Carvell C, Povoroznyuk V, Grygoryeva N, Kreslov Y, Leandro G, Dzerovych N, Ozerov I, Vayda V, Povoroznyuk V, Dzerovych N, Karasevskaya T, Povoroznyuk V, Vayda V, Böhmdorfer B, Frühwald T, D’onofrio G, Sommeregger U, Muster U, Böhmdorfer B, Frühwald T, Oeser B, Sommeregger U, Muster U, Cho C, Yoo B, Oh J, Corritore M, Cho K, Lee H, Clemmensen A, Lauridsen M, Nielsen NB, Crome P, Sinclair-Cohen J, Cherubini A, Oristrell J, Hertogh C, Niro V, Szczerbinska K, Lesauskaite V, Prada GI, Clarfield M, Topikova E, Dieppe P, Gallagher P, O’mahony D, Harbig P, Barat I, Scarcelli C, Nielsen PL, Damsgaard EM, Maanen ACDV, Van Marum RJ, Knol W, Van Der Linden CMJ, Jansen PAF, Karlsson M, Berggren AC, Lampela P, Seripa D, Hartikainen S, Lavikainen P, Sulkava R, Huupponen R, Lonergan MT, Coughlan T, ’Neill DO, Lonergan MT, Coughlan T, ’Neill DO, Piccola BD, Krajèík S, Mikus P, Errasquin BM, Cuervo MS, Castellano CS, Silveira ED, Vicedo TB, Cruz-Jentoft AJ, Petrovic M, Cobbaert K, Ferrucci L, Van Der Stichele R, Rajska-Neumann A, Wieczorowska-Tobis K, Ryan C, Kennedy J, O’mahony D, Byrne S, Castellano CS, Fernández CG, Errasquín BM, Bhuachalla BN, Del Rey JM, Peña MIA, Cruz-Jentoft AJ, Trellu LT, Villaneau D, Parel Y, Vogt-Ferrier N, Vanakoski J, Jokinen T, Skippari L, Cotter PE, Iso-Aho M, Guillemard E, Lacoin F, Marcus EL, Caine Y, Kasem H, Gross M, Mukherjee S, Goupal K, Juszczak A, Mhaille BN, Mukherjee S, Romero E, Fernandez C, Ramos M, Gonzalez E, Fuentes M, Mora J, Martin J, Ribera JM, Berg N, Egan A, Vanmeerbeek M, Moreau A, Massart V, Giet D, Bojan A, Onose G, Popescu C, Jönsdóttir AB, Damkjær K, Elkholy K, Kavanagh A, Schroll M, Lindhardt T, Ozdemir L, Gozukara F, Yucel C, Turk R, Akdemir N, Park SMI, Kim DH, Quinlan N, O’connor M, O’neill D, Caffrey N, Lonergan MT, Trainor S, Gowran L, Falconer M, Carroll N, Dwyer C, Coughlan T, O’neill D, O’keeffe ST, Collins DR, Given K, O’neill D, Collins DR, Lund A, Michelet M, Kjeken I, Wyller TB, Sveen U, Meade R, Kristjansson SR, Anniss S, Kachhia A, Hickey A, O’hanlon A, Mcgee H, Shelley E, Horgan F, O’neill D, Osawa A, Maeshima S, Nesbakken A, Sawayama Y, Maeda S, Ohnishi H, Hamada M, Otaguro S, Furusyo N, Hayashi J, Bonet AT, Martorell LV, Truyols AG, Wyller TB, Homar FA, Malberti JC, Huertas P, Wagle J, Farner L, Flekkøy K, Wyller TB, Sandvik L, Eiklid K, Fure B, Bautmans I, Stensrød B, Engedal K, Rnould A, Baron R, Gallais JL, Giniès P, Benmedjahed K, Bartley M, O’neill D, Hürny C, Njemini R, Brack B, Mukherjee S, Chroinin DNI, Farooq SFS, Burke M, Duggan J, Power D, Kyne L, Qvist A, Jørgensen NR, Jansen B, Schwarz P, Sleiman I, Rozzini R, Barbisoni P, Ranhoff A, Trabucchi M, Rønholt F, Jacobsen HN, Rytter L, Seidahamd M, Vierendeels J, Al-Dhahi L, Vigder C, Ben-Israel Y, Kaykov E, Granot E, Raz R, Wulff T, Hendriksen C, Ziccardi P, Cacciatore F, de Backer J, Mazzella F, Viati L, Abete P, Ferrara N, Rengo F, Raschilas F, Adane D, Oziol E, Millot O, Boubakri C, de Waele E, Hemmi P, Tigoulet F, Faucher N, Blain H, Jeandel C, Blain H, Carriere I, Berard C, Favier F, Colvez A, Mets T, Sørensen KI, Brynningsen P, Damsgaard EM, Mehrabian S, Seux ML, Miralles I, Cohen M, Esculier MC, Rigaud AS, Ducasse V, Pilotto A, Lidy C, Samandel S, Geny C, Comte F, Gabelle A, Touchon J, Jeandel C, Morel N, Verny M, Riou B, Addante F, Boddaert J, Marquis C, Greffard S, Dieudonne B, Barrou Z, Boddaert J, Verny M, Bonnet D, Forest A, Verny M, Franceschi M, Boulanger C, Riou B, Malla Z, Boddaert J, Leandro G, D’onofrio G, D’ambrosio LP, Longo MG, Cascavilla L, Paris F, Pazienza AM, Piccola BD, Ferrucci L, Ungar A, Morrione A, Landi A, Caldi F, Maraviglia A, Rafanelli M, Ruffolo E, Chisciotti VM, Masotti G, Marchionni N, van der Velde N, Ziere G, van der Cammen TJM, Hofman B, Stricker BHC, Rodriguez-Pascual C, Moraga AV, Galan EP, Sanchez MJL, Manso AL, Carballido MT, Chiva MTO, Andion JMV, Sierra AL, Pillay I, Saunders J, Cunniffe J, Cooke J, Blot S, Cankurtaran M, Vandijck D, Danneels C, Vandewoude K, Peleman R, Piette AA, Verschraegen G, van den Noortgate N, Vogelaers D, Petrovic M, Skerris A, Kjear P, Cristoffersen J, Shou C, Seest LS, Oestergaard A, Rønholt F, Overgaard K, Donnellan C, Hickey A, Hevey D, O’neill D, van Munster B, Korevaar J, Zwinderman A, Levi M, Wiersinga J, Rooij S, White S, Mahony SO, Bayer A, Juliebo V, Bjøro K, Krogseth M, Ranhoff AH, Wyller TB, Duque AS, Silvestre J, Freitas P, Palma-Reis I, Lopes JP, Martins A, Batalha V, Campos L, Ekstrom H, Elmstahl S, Ivanoff SD, Hayashi T, Ina K, Hirai H, Iguchi A, Lee T, Gallagher P, Hegarty E, Connor MO, Mahony DO, Mkhailova O, Khavinson V, Kozlov L, Chopra NR, Jones DA, Huwez F, Frimann J, Koefoed M, Meyling R, Holm E, Gryglewska B, Sulicka J, Fornal M, Wizner B, Grodzicki T, O’connor L, Lonergan MT, Cogan N, Coughlan T, O’neill D, Collins DR, Prada GI, Fita IG, Prada S, Herghelegiu AM, Datu C, Lonergan MT, Kelleher F, Mcdermott R, Collins DR, Retornaz F, Monette J, Batist G, Monette M, Sourial N, Small D, Caplan S, Wan-Chow-Wah D, Puts MTE, Bergman H, Retornaz F, Sourial N, Seux V, Monette J, Soubeyrand J, Bergman H, Andrei V, Pircalabu R, Lupeanu E, Pena C, Turcu E, Raducanu I, Hnidei A, Morosanu B, Gherasim P, Gradinaru D, Rachita M, Ionescu I, Arino S, Coindreau F, Alcalde P, Serra J, Baldasseroni S, Romboli B, di Serio C, Orso F, Pellerito S, Mannucci E, Colombi C, Bartoli N, Masotti G, Marchionni N, Tarantini F, Barry P, Kinsella S, Twomey C, O’mahony D, Bezerra AW, Popescu G, Azevedo E, Nobrega J, Ghiorghe S, Coindreau F, Serra J, Duems O, Saez I, Clapera G, Arino S, Coindreau F, Serra J, Saez I, Duems O, Clpaera G, Arino S, Jones DA, Chopra NR, Guha K, Clarkson P, Koga T, Furusyo N, Ogawa E, Sawayama Y, Ai M, Otokozawa S, Schaefer EJ, Hayashi J, Lupeanu E, Andrei V, Turcu E, Pircalabu R, Raducanu I, Hnidei R, Morosanu B, Opris S, Ionescu C, Gherasim P, Mellingsaeter M, Wyller TB, Ranhoff AH, Popescu G, Teixeira J, Ghiorghe S, Azevedo E, Teixeira A, Rodriguez-Pascual C, Moraga AV, Carballido MT, Galan EP, Quintela S, Leiros A, Sanchez MJL, Chiva MTO, Sierra AL, Andion JMV, Rios CF, Seabra Pereira MF, Jorge E, Dias R, Verissimo MT, Santos L, Saldanha MH, Sinha S, Dave P, Hussain S, Ayub A, Vilches-Moraga A, Rodriguez-Pascual C, Paredes-Galan E, Leiro-Manso A, Gonzalez-Rios C, Torrente-Carballido M, Vega-Andion JM, Olcoz-Chiva MT, Lopez-Sierra A, Lopez-Sanchez MJ, Narro-Vidal M, Garcia Q, Bozoglu E, Isk AT, Comert B, Doruk H, Sohrt C, Brynningsen P, Damsgaard EM, Kat M, Vreeswijk R, de Jonghe J, van der Ploeg T, van Gool W, Eikelenboom P, Kalisvaart K, Kat M, de Jonghe J, Vreeswijk R, van der Ploeg T, van Gool W, Eikelenboom P, Kalisvaart K, Krogseth M, Juliebø V, Engedal K, Wyller TB, Sharma V, Soiza RL, Ferguson K, Shenkin SD, Seymour DG, Maclullich AMJ, van Munster B, van Breemen M, Moerland P, Speijer D, Rooij S, Hollmann M, Zwinderman A, Korevaar J, Vreeswijk R, Toornvliet A, Honing M, Bakker K, de Man T, de Jonghe JFM, Kalisvaart KJ, Bisschop MM, Sival R, Driesen J, Cappuccio M, Cilesi I, Cirinei E, Ruggiero C, Dell’aquila G, Gasperini B, Patacchini F, Mancioli G, Lauretani F, Bandinelli S, Maggio M, Ferrucci L, Cherubini A, Cruz-Jentoft AJ, de Tena Fontaneda A, Cano LR, Custureri R, Curiale V, Prete C, Cella A, Bonomini C, Barban G, Trasciatti S, Palummeri E, Gasperini B, Ruggiero C, Dell’aquila G, Cirinei E, Patacchini F, Mancioli G, Lauretani F, Bandinelli S, Maggio M, Ferrucci L, Cherubini A, Gold G, Giannakopoulos P, Hermmann F, Bouras C, Kovari E, Halil M, Deniz A, Yavuz B, Yavuz BB, Ülger Z, Cankurtaran M, Isik M, Cankurtaran ES, Aytemir K, Ariogul S, Kanaya K, Abe S, Sakai M, Iwamoto T, Korfitsen T, Moe C, Mecocci P, Mangiaasche F, Costanzi E, Cecchetti R, Rinaldi P, Serafini V, Amici S, Baglioni M, Bastiani P, Lovestone S, Prada GI, Ftta IG, Prada S, Herghelegiu AM, Datu C, Rozzini R, Sleiman I, Barbisoni P, Ranhoff A, Maggi S, Trabucchi M, Shafiei R, Johansen AH, Moe C, Lyngholm-Kxærby P, Kristiansen K, Lestrup C, Lund C, Jones E, Such P, van Puyvelde K, Mets T, Yavuz BB, Yavuz B, Cankurtaran M, Halil M, Ulger Z, Aytemir K, Oto A, Ariogul S, Yavuz BB, Cankurtaran M, Halil M, Ulger Z, Ariogul S, di Bari M, Lattanzio F, Sgadari A, Baccini M, Ercolani S, Rengo F, Senin U, Bernabei R, Marchionni N, Cherubini A, del Bianco L, Lamanna C, Gori F, Monami M, Marchionni N, Masotti G, Mannucci E, Foss CH, Vestbo E, Frøland A, Mogensen CE, Damsgaard EM, Mossello E, Simoni D, Boncinelli M, Gullo M, Mello AM, Lopilato E, Lamanna C, Gori F, Cavallini MC, Marchionni N, Mannucci E, Masotti M, Pena CM, Olaru OG, Pircalabu RM, Raducanu I, Rodriguez-Justo S, Narro-Vidal M, Garcia-Villar E, Rodriguez-Pascual C, Vilches-Moraga A, Olcoz-Chiva MT, Lopez-Sierra A, Vega-Andion JM, Lopez-Sanchez MJ, Torrente-Carballido M, Paredes-Galan E, Vilches-Moraga A, Abbas A, Grue R, Adie K, Fox J, Wileman L, Pattison T, Briggs S, Bhat S, Baker P, Akdemir N, Kapucu SS, Özdemir L, Akkus Y, Balci G, Akyar Y, Cankuran M, Halil M, Kayihan H, Uyanik M, Hazer O, Ariogul S, Cella A, Curiale V, Cuneo G, Fraguglia C, Trasciatti S, Palummeri E, Blundell A, Gordon A, Masud T, Gladman J, Sclater A, Curran V, Kirby B, Forristall J, Sharpe D, Anstey SA, Dawe D, Edwards S, White M, Celik SS, Kapucu SS, Akkuþ Y, Tuna Z, Szczerbinska K, Kijowska V, Mirewska E, Topor-Madry R, Czabanowska K, Maggi S, Franceschi M, Pilotto A, Noale M, Parisi GC, Crepaldi G, Van Gara R, Mcgee H, Winder R, O’neill D, Piers R, Vanden Noortgate N, Schrauwen W, Maertens S, Velghe A, Petrovic M, Benoit D, Cronin H, O’regan C, Kearney P, Moreira A, Kamiya Y, Whelan B, Kenny RA, Carpena-Ruiz M, Anton JM, de Antonio P, Verdejo C, Cruz-Jentoft AJ, Anton JM, Verdejo C, de Antonio P, Carpena M, Cruz-Jentoft AJ, Sanchez FJM, Alonso CF, del Castillo JG, Ferrer MF, Armengol JG, Villarroel P, Gregorio PG, Casado JMR, Leiros BG, Garcia FJG, Clemente MRP, Acha AA, Ramiez LFM, Ballesteros CM, Ibanez JMF, Andres SA, Maya RP, Soria JF, Checa M, Melich AE, Lang PO, Herrmann F, Michel JP, Cebrian A, Duiez-Domingo J, San-Martin M, Vantieghem KM, Terumalai K, Kaiser L, Trellu LT, Brandt MS, Jørgensen B, Nyhuus C, Lyager A, Hagedorn D, Holm E, Lauritsen J, Leners JC, Sibret MP, Mas MA, Renom A, Vazquez O, Miralles R, Cervera AM, Mathur A, Lord S, Mikes Z, Mikes P, Holckova J, Dukat A, Lietava J, Petrovicova J, Strelkova V, Kolesar J, Rokkedal L, Granberg P, Mortensen RS, Shipman K, Vincent B, Patel T, Yau C, Rehman R, Salam A, Ballentyne S, Aw D, Weerasuriya N, Lee S, Masud T, Barry P, O’connor M, O’sullivan F, Moriarty E, O’connor K, O’connor M, Bogen B, Bjordal JM, Kristensen MT, Moe-Nilssen R, Crome I, Lally F, Crome P, Curiale V, Custureri R, Prete C, Trasciatti S, Galliera EOO, Herrmann F, Petitpierre N, Michel JP, Kitisomprayoonkul W, Chaiwanichsiri D, Kristensen MT, Bandholm T, Bencke J, Ekdahl C, Kehlet H, Lauritsen J, Sørensen GV, Gonzalez A, Lazaro M, Gonzalez E, Ribera JM, Casado JMR, Gillett S, MacMahon M, Pedersen SJ, Borgbjerg FM, Schousboe B, Pedersen BD, Jørgensen HL, Duus BR, Lauritzen JB, Cooke J, Pillay I, Binkley N, Boonen S, Roux C, He W, Rosenberg R, Yang Z, Salonoja M, Aarnio P, Vahlberg T, Ktvelä SL, Salpakoski A, Portegijs E, Kallinen M, Sihvonen S, Kiviranta I, Alen M, Rantanen T, Sipilä S, Szczerbinska K, Sørensen GV, Lauritsen J, Vincent B, Way B, Vergis N, Battacharya B, Chatterjee A, Bryden E, Vind AB, Andersen HE, Pedersen KD, Jørgensen T, Schwarz P, Zintchouk D, Mørch M, Damsgaard EM, De Saint-Hubert M, Divoy C, Godart P, Schoevaerdts D, Swine C, Alonso CF, Sanchez FJM, del Castillo JG, Ferrer MF, Armengol JG, Villarroel P, Bravo CV, Casado JMR, Hovmand B, Larsen AE, Pedersen S, Vinkler S, Christensen K, Øresund CVU, Matera MG, Goffredo V, Franceschi M, D’onofrio G, Addante F, Gravina C, Urbano M, Seripa D, Dallapiccola B, Pilotto A, Chroinin DNI, O’brien H, Power D, Santillo E, Ventura G, Migale M, Cassano S, Cariello FP, Crane S, Takahashi P, Tung E, Chandra A, Yu-Ballard A, Hanson G, Vandewoude M, Hoeck S, Geerts J, Van Hal G, Van der Heyden J, Breda J, Weber P, Meluzínová H, Hrubanová J, Kubšová H, Polcarová V, Campbell P, Henderson E, Macmahon M, Pedersen ABL, Mørch MM, Foss CH, Franceschi M, Maggi S, Pilotto A, Noale M, Parisi G, Crepaldi G, Furusyo N, Koga T, Ohnishi H, Maeda S, Takeoka H, Toyoda K, Ogawa E, Sawayama Y, Hayashi J, Kamigaki M, Nakagawa I, Kumei Y, Hayashi N, Takasugi Y, Maggi S, Pilotto A, Noale M, Franceschi L, Parisi GC, Crepaldi G, Maggi S, Pilotto A, Franceschi M, Noale M, Parisi GC, Crepaldi G, Michael A, Bhangu A, Fisher G, Rees E, Labib M, Ogawa E, Furusyo N, Koga T, Sawayama Y, Hayashi J, Ohishi M, Takagi T, Fujisawa T, Katsuya T, Rakugi H, Pilotto A, Franceschi M, Ferrucci L, Rengo F, Bernabei R, Leandro G, Pilotto A, Franceschi M, Maggi S, Noale M, Parisi G, Crepaldi G, Cotter PE, Simon M, Quinn C, O’keeffe ST, Moy I, Crome P, Crome I, Frisher M, Daly K, Huber P, Hilleret H, Lang PO, Le Saint L, Chamot C, Giannakopoulos P, Gold G, Leckie K, Bayes H, Birschel P, Lundgren B, Eniry BM, Pillay I, Matzen LE, O’neill D, Garavan R, O’hanlon A, Mcgee H, Akdemir N, Kapucu S, Ozdemir L, Akkus Y, Balci G, Akyar I, Patacchini F, Ruggiero C, Dell’aquila G, Ferretti R, Mariani T, Gugliotta R, Cirinei E, Gasperini B, Lattanzio F, Bernabei R, Senin U, Cherubini C, Pedersen TS, Raun KN, Jespersen E, Sixt E, Takahashi P, Crane S, Tung E, Chandra A, Yu-Ballard A, Hanson G, Velghe A, Petermans J. Oral and Poster Papers Submitted for Presentation at the 5th Congress of the EUGMS “Geriatric Medicine in a Time of Generational Shift September 3–6, 2008 Copenhagen, Denmark. J Nutr Health Aging 2008. [DOI: 10.1007/bf02983206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lund A, Andersson P, Eriksson J, Hallin J, Johansson T, Jonsson R, Löfgren H, Paulin C, Tell A. Automatic fitting procedures for EPR spectra of disordered systems: matrix diagonalization and perturbation methods applied to fluorocarbon radicals. Spectrochim Acta A Mol Biomol Spectrosc 2008; 69:1294-1300. [PMID: 18006375 DOI: 10.1016/j.saa.2007.09.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2007] [Accepted: 09/17/2007] [Indexed: 05/25/2023]
Abstract
Two types of automatic fitting procedures for EPR spectra of disordered systems have been developed, one based on matrix diagonalization of a general spin Hamiltonian, the other on 2nd order perturbation theory. The first program is based on a previous Fortran code complemented with a newly written interface in Java to provide user-friendly in and output. The second is intended for the special case of free radicals with several relatively weakly interacting nuclei, in which case the general method becomes slow. A least squares' fitting procedure utilizing analytical or numerical derivatives of the theoretically calculated spectrum with respect to the g- and hyperfine structure (hfs) tensors was used to refine those parameters in both cases. 'Rigid limit' ESR spectra from radicals in organic matrices and in polymers, previously studied experimentally at low temperature, were analyzed by both methods. Fluorocarbon anion radicals could be simulated, quite accurately with the exact method, whereas automatic fitting on, e.g. the c-C(4)F(8)(-) anion radical is only feasible with the 2nd order approximative treatment. Initial values for the (19)F hfs tensors estimated by DFT calculations were quite close to the final. For neutral radicals of the type XCF(2)CF(2)* the refinement of the hfs tensors by the exact method worked better than the approximate. The reasons are discussed. The ability of the fitting procedures to recover the correct magnetic parameters of disordered systems was investigated by fittings to synthetic spectra with known hfs tensors. The exact and the approximate methods are concluded to be complementary, one being general, but limited to relatively small systems, the other being a special treatment, suited for S=1/2 systems with several moderately large hfs.
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Affiliation(s)
- A Lund
- Department of Physics, Linköping University, S-581 83 Linköping, Sweden.
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