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Reith C, Preiss D, Blackwell L, Emberson J, Spata E, Davies K, Halls H, Harper C, Holland L, Wilson K, Roddick AJ, Cannon CP, Clarke R, Colhoun HM, Durrington PN, Goto S, Hitman GA, Hovingh GK, Jukema JW, Koenig W, Marschner I, Mihaylova B, Newman C, Probsfield JL, Ridker PM, Sabatine MS, Sattar N, Schwartz GG, Tavazzi L, Tonkin A, Trompet S, White H, Yusuf S, Armitage J, Keech A, Simes J, Collins R, Baigent C, Barnes E, Fulcher J, Herrington WG, Kirby A, O'Connell R, Amarenco P, Arashi H, Barter P, Betteridge DJ, Blazing M, Blauw GJ, Bosch J, Bowman L, Braunwald E, Bulbulia R, Byington R, Clearfield M, Cobbe S, Dahlöf B, Davis B, de Lemos J, Downs JR, Fellström B, Flather M, Ford I, Franzosi MG, Fuller J, Furberg C, Glynn R, Goldbourt U, Gordon D, Gotto, Jr A, Grimm R, Gupta A, Hawkins CM, Haynes R, Holdaas H, Hopewell J, Jardine A, Kastelein JJP, Kean S, Kearney P, Kitas G, Kjekshus J, Knatterud G, Knopp RH, Koren M, Krane V, Landray M, LaRosa J, Latini R, Lonn E, Lucci D, MacFadyen J, Macfarlane P, MacMahon S, Maggioni A, Marchioli R, Moyé L, Murphy S, Neil A, Nicolis EB, Packard C, Parish S, Pedersen TR, Peto R, Pfeffer M, Poulter N, Pressel S, Probstfield J, Rahman M, Robertson M, Sacks F, Schmieder R, Serruys P, Sever P, Shaw J, Shepherd J, Simpson L, Sleight P, Smeeth L, Tobert J, Tognoni G, Varigos J, Wanner C, Wedel H, Weis S, Welch KM, Wikstrand J, Wilhelmsen L, Wiviott S, Yamaguchi J, Young R, Zannad F. Effects of statin therapy on diagnoses of new-onset diabetes and worsening glycaemia in large-scale randomised blinded statin trials: an individual participant data meta-analysis. Lancet Diabetes Endocrinol 2024; 12:306-319. [PMID: 38554713 DOI: 10.1016/s2213-8587(24)00040-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Previous meta-analyses of summary data from randomised controlled trials have shown that statin therapy increases the risk of diabetes, but less is known about the size or timing of this effect, or who is at greatest risk. We aimed to address these gaps in knowledge through analysis of individual participant data from large, long-term, randomised, double-blind trials of statin therapy. METHODS We conducted a meta-analysis of individual participant data from randomised controlled trials of statin therapy that participated in the CTT Collaboration. All double-blind randomised controlled trials of statin therapy of at least 2 years' scheduled duration and with at least 1000 participants were eligible for inclusion in this meta-analysis. All recorded diabetes-related adverse events, treatments, and measures of glycaemia were sought from eligible trials. Meta-analyses assessed the effects of allocation to statin therapy on new-onset diabetes (defined by diabetes-related adverse events, use of new glucose-lowering medications, glucose concentrations, or HbA1c values) and on worsening glycaemia in people with diabetes (defined by complications of glucose control, increased use of glucose-lowering medication, or HbA1c increase of ≥0·5%). Standard inverse-variance-weighted meta-analyses of the effects on these outcomes were conducted according to a prespecified protocol. FINDINGS Of the trials participating in the CTT Collaboration, 19 trials compared statin versus placebo (123 940 participants, 25 701 [21%] with diabetes; median follow-up of 4·3 years), and four trials compared more versus less intensive statin therapy (30 724 participants, 5340 [17%] with diabetes, median follow-up of 4·9 years). Compared with placebo, allocation to low-intensity or moderate-intensity statin therapy resulted in a 10% proportional increase in new-onset diabetes (2420 of 39 179 participants assigned to receive a statin [1·3% per year] vs 2214 of 39 266 participants assigned to receive placebo [1·2% per year]; rate ratio [RR] 1·10, 95% CI 1·04-1·16), and allocation to high-intensity statin therapy resulted in a 36% proportional increase (1221 of 9935 participants assigned to receive a statin [4·8% per year] vs 905 of 9859 participants assigned to receive placebo [3·5% per year]; 1·36, 1·25-1·48). For each trial, the rate of new-onset diabetes among participants allocated to receive placebo depended mostly on the proportion of participants who had at least one follow-up HbA1c measurement; this proportion was much higher in the high-intensity than the low-intensity or moderate-intensity trials. Consequently, the main determinant of the magnitude of the absolute excesses in the two types of trial was the extent of HbA1c measurement rather than the proportional increase in risk associated with statin therapy. In participants without baseline diabetes, mean glucose increased by 0·04 mmol/L with both low-intensity or moderate-intensity (95% CI 0·03-0·05) and high-intensity statins (0·02-0·06), and mean HbA1c increased by 0·06% (0·00-0·12) with low-intensity or moderate-intensity statins and 0·08% (0·07-0·09) with high-intensity statins. Among those with a baseline measure of glycaemia, approximately 62% of new-onset diabetes cases were among participants who were already in the top quarter of the baseline distribution. The relative effects of statin therapy on new-onset diabetes were similar among different types of participants and over time. Among participants with baseline diabetes, the RRs for worsening glycaemia were 1·10 (1·06-1·14) for low-intensity or moderate-intensity statin therapy and 1·24 (1·06-1·44) for high-intensity statin therapy compared with placebo. INTERPRETATION Statins cause a moderate dose-dependent increase in new diagnoses of diabetes that is consistent with a small upwards shift in glycaemia, with the majority of new diagnoses of diabetes occurring in people with baseline glycaemic markers that are close to the diagnostic threshold for diabetes. Importantly, however, any theoretical adverse effects of statins on cardiovascular risk that might arise from these small increases in glycaemia (or, indeed, from any other mechanism) are already accounted for in the overall reduction in cardiovascular risk that is seen with statin therapy in these trials. These findings should further inform clinical guidelines regarding clinical management of people taking statin therapy. FUNDING British Heart Foundation, UK Medical Research Council, and Australian National Health and Medical Research Council.
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Wu R, Williams C, Zhou J, Schlackow I, Emberson J, Reith C, Keech A, Robson J, Armitage J, Gray A, Simes J, Baigent C, Mihaylova B, Armitage J, Baigent C, Barnes E, Blackwell L, Collins R, Davies K, Emberson J, Fulcher J, Halls H, Herrington WG, Holland L, Keech A, Kirby A, Mihaylova B, O'Connell R, Preiss D, Reith C, Simes J, Wilson K, Blazing M, Braunwald E, Lemos JD, Murphy S, Pedersen TR, Pfeffer M, White H, Wiviott S, Clearfield M, Downs JR, Gotto A, Weis S, Fellström B, Holdaas H, Jardine A, Pedersen TR, Gordon D, Davis B, Furberg C, Grimm R, Pressel S, Probstfield JL, Rahman M, Simpson L, Koren M, Dahlöf B, Gupta A, Poulter N, Sever P, Wedel H, Knopp RH, Cobbe S, Fellström B, Holdaas H, Jardine A, Schmieder R, Zannad F, Betteridge DJ, Colhoun HM, Durrington PN, Fuller J, Hitman GA, Neil A, Braunwald E, Davis B, Hawkins CM, Moyé L, Pfeffer M, Sacks F, Kjekshus J, Wedel H, Wikstrand J, Wanner C, Krane V, Franzosi MG, Latini R, Lucci D, Maggioni A, Marchioli R, Nicolis EB, Tavazzi L, Tognoni G, Bosch J, Lonn E, Yusuf S, Armitage J, Bowman L, Collins R, Keech A, Landray M, Parish S, Peto R, Sleight P, Kastelein JJ, Pedersen TR, Glynn R, Gotto A, Kastelein JJ, Koenig W, MacFadyen J, Ridker PM, Keech A, MacMahon S, Marschner I, Tonkin A, Shaw J, Simes J, White H, Serruys PW, Knatterud G, Blauw GJ, Cobbe S, Ford I, Macfarlane P, Packard C, Sattar N, Shepherd J, Trompet S, Braunwald E, Cannon CP, Murphy S, Collins R, Armitage J, Bowman L, Bulbulia R, Haynes R, Parish S, Peto R, Sleight P, Amarenco P, Welch KM, Kjekshus J, Pedersen TR, Wilhelmsen L, Barter P, Gotto A, LaRosa J, Kastelein JJ, Shepherd J, Cobbe S, Ford I, Kean S, Macfarlane P, Packard C, Roberston M, Sattar N, Shepherd J, Young R, Arashi H, Clarke R, Flather M, Goto S, Goldbourt U, Hopewell J, Hovingh GK, Kitas G, Newman C, Sabatine MS, Schwartz GG, Smeeth L, Tobert J, Varigos J, Yamamguchi J. Long-term cardiovascular risks and the impact of statin treatment on socioeconomic inequalities: a microsimulation model. Br J Gen Pract 2024; 74:BJGP.2023.0198. [PMID: 38373851 PMCID: PMC10904120 DOI: 10.3399/bjgp.2023.0198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 09/19/2023] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND UK cardiovascular disease (CVD) incidence and mortality have declined in recent decades but socioeconomic inequalities persist. AIM To present a new CVD model, and project health outcomes and the impact of guideline-recommended statin treatment across quintiles of socioeconomic deprivation in the UK. DESIGN AND SETTING A lifetime microsimulation model was developed using 117 896 participants in 16 statin trials, 501 854 UK Biobank (UKB) participants, and quality-of-life data from national health surveys. METHOD A CVD microsimulation model was developed using risk equations for myocardial infarction, stroke, coronary revascularisation, cancer, and vascular and non-vascular death, estimated using trial data. The authors calibrated and further developed this model in the UKB cohort, including further characteristics and a diabetes risk equation, and validated the model in UKB and Whitehall II cohorts. The model was used to predict CVD incidence, life expectancy, quality-adjusted life years (QALYs), and the impact of UK guideline-recommended statin treatment across socioeconomic deprivation quintiles. RESULTS Age, sex, socioeconomic deprivation, smoking, hypertension, diabetes, and cardiovascular events were key CVD risk determinants. Model-predicted event rates corresponded well to observed rates across participant categories. The model projected strong gradients in remaining life expectancy, with 4-5-year (5-8 QALYs) gaps between the least and most socioeconomically deprived quintiles. Guideline-recommended statin treatment was projected to increase QALYs, with larger gains in quintiles of higher deprivation. CONCLUSION The study demonstrated the potential of guideline-recommended statin treatment to reduce socioeconomic inequalities. This CVD model is a novel resource for individualised long-term projections of health outcomes of CVD treatments.
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Affiliation(s)
- Runguo Wu
- Health Economics and Policy Research Unit, Wolfson Institute of Population Health, Queen Mary University of London, London, UK
| | - Claire Williams
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Junwen Zhou
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Iryna Schlackow
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Jonathan Emberson
- Nuffield Department of Population Health and Medical Research Council Population Health Research Unit, University of Oxford, Oxford, UK
| | - Christina Reith
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Anthony Keech
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - John Robson
- Clinical Effectiveness Group, Wolfson Institute of Population Health, Queen Mary University of London, London, UK
| | - Jane Armitage
- Nuffield Department of Population Health and Medical Research Council Population Health Research Unit, University of Oxford, Oxford, UK
| | - Alastair Gray
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - John Simes
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - Colin Baigent
- Nuffield Department of Population Health and Medical Research Council Population Health Research Unit, University of Oxford, Oxford, UK
| | - Borislava Mihaylova
- Health Economics and Policy Research Unit, Wolfson Institute of Population Health, Queen Mary University of London, London; associate professor and senior health economist, Nuffield Department of Population Health, University of Oxford, Oxford, UK
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Andriamirado M, Balantekin AB, Bass CD, Bergeron DE, Bernard EP, Bowden NS, Bryan CD, Carr R, Classen T, Conant AJ, Deichert G, Delgado A, Diwan MV, Dolinski MJ, Erickson A, Foust BT, Gaison JK, Galindo-Uribari A, Gilbert CE, Gokhale S, Grant C, Hans S, Hansell AB, Heeger KM, Heffron B, Jaffe DE, Jayakumar S, Ji X, Jones DC, Koblanski J, Kunkle P, Kyzylova O, LaBelle D, Lane CE, Langford TJ, LaRosa J, Littlejohn BR, Lu X, Maricic J, Mendenhall MP, Meyer AM, Milincic R, Mueller PE, Mumm HP, Napolitano J, Neilson R, Nikkel JA, Nour S, Palomino Gallo JL, Pushin DA, Qian X, Roca C, Rosero R, Searles M, Surukuchi PT, Sutanto F, Tyra MA, Venegas-Vargas D, Weatherly PB, Wilhelmi J, Woolverton A, Yeh M, Zhang C, Zhang X. Final Measurement of the ^{235}U Antineutrino Energy Spectrum with the PROSPECT-I Detector at HFIR. Phys Rev Lett 2023; 131:021802. [PMID: 37505961 DOI: 10.1103/physrevlett.131.021802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/14/2023] [Accepted: 05/11/2023] [Indexed: 07/30/2023]
Abstract
This Letter reports one of the most precise measurements to date of the antineutrino spectrum from a purely ^{235}U-fueled reactor, made with the final dataset from the PROSPECT-I detector at the High Flux Isotope Reactor. By extracting information from previously unused detector segments, this analysis effectively doubles the statistics of the previous PROSPECT measurement. The reconstructed energy spectrum is unfolded into antineutrino energy and compared with both the Huber-Mueller model and a spectrum from a commercial reactor burning multiple fuel isotopes. A local excess over the model is observed in the 5-7 MeV energy region. Comparison of the PROSPECT results with those from commercial reactors provides new constraints on the origin of this excess, disfavoring at 2.0 and 3.7 standard deviations the hypotheses that antineutrinos from ^{235}U are solely responsible and noncontributors to the excess observed at commercial reactors, respectively.
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Affiliation(s)
- M Andriamirado
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - A B Balantekin
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - C D Bass
- Department of Physics, Le Moyne College, Syracuse, New York 13214, USA
| | - D E Bergeron
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - E P Bernard
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N S Bowden
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C D Bryan
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - R Carr
- Department of Physics, United States Naval Academy, Annapolis, Maryland 21402, USA
| | - T Classen
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A J Conant
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - G Deichert
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - A Delgado
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - M V Diwan
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M J Dolinski
- Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA
| | - A Erickson
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - B T Foust
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J K Gaison
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A Galindo-Uribari
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - C E Gilbert
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - S Gokhale
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Grant
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - S Hans
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A B Hansell
- Department of Physics, Susquehanna University, Selinsgrove, Pennsylvania 17870, USA
| | - K M Heeger
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - B Heffron
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - S Jayakumar
- Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA
| | - X Ji
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D C Jones
- Department of Physics (035-08), Temple University, 1925 N 12th Street, Philadelphia, Pennsylvania 19122-1801, USA
| | - J Koblanski
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - P Kunkle
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - O Kyzylova
- Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA
| | - D LaBelle
- Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA
| | - C E Lane
- Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA
| | - T J Langford
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J LaRosa
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - B R Littlejohn
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - X Lu
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - J Maricic
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - M P Mendenhall
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A M Meyer
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - R Milincic
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - P E Mueller
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - H P Mumm
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - J Napolitano
- Department of Physics (035-08), Temple University, 1925 N 12th Street, Philadelphia, Pennsylvania 19122-1801, USA
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA
| | - J A Nikkel
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - S Nour
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - J L Palomino Gallo
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - D A Pushin
- Institute for Quantum Computing and Department of Physics, University of Waterloo, Waterloo, ON N2L 3G1 Ontario, Canada
| | - X Qian
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Roca
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Rosero
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M Searles
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - P T Surukuchi
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - F Sutanto
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M A Tyra
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - D Venegas-Vargas
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - P B Weatherly
- Department of Physics, Drexel University, Philadelphia PA 19104-2875, Pennsylvania, USA
| | - J Wilhelmi
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A Woolverton
- Institute for Quantum Computing and Department of Physics, University of Waterloo, Waterloo, ON N2L 3G1 Ontario, Canada
| | - M Yeh
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Zhang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - X Zhang
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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4
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An FP, Andriamirado M, Balantekin AB, Band HR, Bass CD, Bergeron DE, Berish D, Bishai M, Blyth S, Bowden NS, Bryan CD, Cao GF, Cao J, Chang JF, Chang Y, Chen HS, Chen SM, Chen Y, Chen YX, Cheng J, Cheng ZK, Cherwinka JJ, Chu MC, Classen T, Conant AJ, Cummings JP, Dalager O, Deichert G, Delgado A, Deng FS, Ding YY, Diwan MV, Dohnal T, Dolinski MJ, Dolzhikov D, Dove J, Dvořák M, Dwyer DA, Erickson A, Foust BT, Gaison JK, Galindo-Uribarri A, Gallo JP, Gilbert CE, Gonchar M, Gong GH, Gong H, Grassi M, Gu WQ, Guo JY, Guo L, Guo XH, Guo YH, Guo Z, Hackenburg RW, Hans S, Hansell AB, He M, Heeger KM, Heffron B, Heng YK, Hor YK, Hsiung YB, Hu BZ, Hu JR, Hu T, Hu ZJ, Huang HX, Huang JH, Huang XT, Huang YB, Huber P, Koblanski J, Jaffe DE, Jayakumar S, Jen KL, Ji XL, Ji XP, Johnson RA, Jones DC, Kang L, Kettell SH, Kohn S, Kramer M, Kyzylova O, Lane CE, Langford TJ, LaRosa J, Lee J, Lee JHC, Lei RT, Leitner R, Leung JKC, Li F, Li HL, Li JJ, Li QJ, Li RH, Li S, Li SC, Li WD, Li XN, Li XQ, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin S, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu JC, Liu JL, Liu JX, Lu C, Lu HQ, Lu X, Luk KB, Ma BZ, Ma XB, Ma XY, Ma YQ, Mandujano RC, Maricic J, Marshall C, McDonald KT, McKeown RD, Mendenhall MP, Meng Y, Meyer AM, Milincic R, Mueller PE, Mumm HP, Napolitano J, Naumov D, Naumova E, Neilson R, Nguyen TMT, Nikkel JA, Nour S, Ochoa-Ricoux JP, Olshevskiy A, Palomino JL, Pan HR, Park J, Patton S, Peng JC, Pun CSJ, Pushin DA, Qi FZ, Qi M, Qian X, Raper N, Ren J, Morales Reveco C, Rosero R, Roskovec B, Ruan XC, Searles M, Steiner H, Sun JL, Surukuchi PT, Tmej T, Treskov K, Tse WH, Tull CE, Tyra MA, Varner RL, Venegas-Vargas D, Viren B, Vorobel V, Wang CH, Wang J, Wang M, Wang NY, Wang RG, Wang W, Wang W, Wang X, Wang Y, Wang YF, Wang Z, Wang Z, Wang ZM, Weatherly PB, Wei HY, Wei LH, Wen LJ, Whisnant K, White C, Wilhelmi J, Wong HLH, Woolverton A, Worcester E, Wu DR, Wu FL, Wu Q, Wu WJ, Xia DM, Xie ZQ, Xing ZZ, Xu HK, Xu JL, Xu T, Xue T, Yang CG, Yang L, Yang YZ, Yao HF, Ye M, Yeh M, Young BL, Yu HZ, Yu ZY, Yue BB, Zavadskyi V, Zeng S, Zeng Y, Zhan L, Zhang C, Zhang FY, Zhang HH, Zhang JW, Zhang QM, Zhang SQ, Zhang X, Zhang XT, Zhang YM, Zhang YX, Zhang YY, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zhao RZ, Zhou L, Zhuang HL, Zou JH. Joint Determination of Reactor Antineutrino Spectra from ^{235}U and ^{239}Pu Fission by Daya Bay and PROSPECT. Phys Rev Lett 2022; 128:081801. [PMID: 35275656 DOI: 10.1103/physrevlett.128.081801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/17/2021] [Accepted: 10/26/2021] [Indexed: 06/14/2023]
Abstract
A joint determination of the reactor antineutrino spectra resulting from the fission of ^{235}U and ^{239}Pu has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of ^{235}U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant ^{235}U and ^{239}Pu isotopes and improves the uncertainty of the ^{235}U spectral shape to about 3%. The ^{235}U and ^{239}Pu antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the ^{235}U and ^{239}Pu spectra based on the combination of experiments at low- and highly enriched uranium reactors.
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Affiliation(s)
- F P An
- Institute of Modern Physics, East China University of Science and Technology, Shanghai
| | - M Andriamirado
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - A B Balantekin
- Department of Physics, University of Wisconsin, Madison, Madison, Wisconsin
| | - H R Band
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - C D Bass
- Department of Physics, Le Moyne College, Syracuse, New York
| | - D E Bergeron
- National Institute of Standards and Technology, Gaithersburg, Maryland
| | - D Berish
- Department of Physics, Temple University, Philadelphia, Pennsylvania
| | - M Bishai
- Brookhaven National Laboratory, Upton, New York
| | - S Blyth
- Department of Physics, National Taiwan University, Taipei
| | - N S Bowden
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California
| | - C D Bryan
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee
| | - G F Cao
- Institute of High Energy Physics, Beijing
| | - J Cao
- Institute of High Energy Physics, Beijing
| | - J F Chang
- Institute of High Energy Physics, Beijing
| | - Y Chang
- National United University, Miao-Li
| | - H S Chen
- Institute of High Energy Physics, Beijing
| | - S M Chen
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Y Chen
- Shenzhen University, Shenzhen
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - Y X Chen
- North China Electric Power University, Beijing
| | - J Cheng
- Institute of High Energy Physics, Beijing
| | - Z K Cheng
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - J J Cherwinka
- Department of Physics, University of Wisconsin, Madison, Madison, Wisconsin
| | - M C Chu
- Chinese University of Hong Kong, Hong Kong
| | - T Classen
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California
| | - A J Conant
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee
| | | | - O Dalager
- Department of Physics and Astronomy, University of California, Irvine, California 92697
| | - G Deichert
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee
| | - A Delgado
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee
| | - F S Deng
- University of Science and Technology of China, Hefei
| | - Y Y Ding
- Institute of High Energy Physics, Beijing
| | - M V Diwan
- Brookhaven National Laboratory, Upton, New York
| | - T Dohnal
- Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic
| | - M J Dolinski
- Department of Physics, Drexel University, Philadelphia, Pennsylvania
| | - D Dolzhikov
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
| | - J Dove
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - M Dvořák
- Institute of High Energy Physics, Beijing
| | - D A Dwyer
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - A Erickson
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia
| | - B T Foust
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - J K Gaison
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - A Galindo-Uribarri
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee
| | - J P Gallo
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - C E Gilbert
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee
| | - M Gonchar
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
| | - G H Gong
- Department of Engineering Physics, Tsinghua University, Beijing
| | - H Gong
- Department of Engineering Physics, Tsinghua University, Beijing
| | - M Grassi
- Department of Physics and Astronomy, University of California, Irvine, California 92697
| | - W Q Gu
- Brookhaven National Laboratory, Upton, New York
| | - J Y Guo
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - L Guo
- Department of Engineering Physics, Tsinghua University, Beijing
| | - X H Guo
- Beijing Normal University, Beijing
| | - Y H Guo
- Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an
| | - Z Guo
- Department of Engineering Physics, Tsinghua University, Beijing
| | | | - S Hans
- Brookhaven National Laboratory, Upton, New York
| | - A B Hansell
- Department of Physics, Temple University, Philadelphia, Pennsylvania
| | - M He
- Institute of High Energy Physics, Beijing
| | - K M Heeger
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - B Heffron
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee
| | - Y K Heng
- Institute of High Energy Physics, Beijing
| | - Y K Hor
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei
| | - B Z Hu
- Department of Physics, National Taiwan University, Taipei
| | - J R Hu
- Institute of High Energy Physics, Beijing
| | - T Hu
- Institute of High Energy Physics, Beijing
| | - Z J Hu
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - H X Huang
- China Institute of Atomic Energy, Beijing
| | - J H Huang
- Institute of High Energy Physics, Beijing
| | | | - Y B Huang
- Guangxi University, No.100 Daxue East Road, Nanning
| | - P Huber
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | - J Koblanski
- Department of Physics & Astronomy, University of Hawaii, Honolulu, Hawaii
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York
| | - S Jayakumar
- Department of Physics, Drexel University, Philadelphia, Pennsylvania
| | - K L Jen
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - X L Ji
- Institute of High Energy Physics, Beijing
| | - X P Ji
- Brookhaven National Laboratory, Upton, New York
| | - R A Johnson
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221
| | - D C Jones
- Department of Physics, Temple University, Philadelphia, Pennsylvania
| | - L Kang
- Dongguan University of Technology, Dongguan
| | - S H Kettell
- Brookhaven National Laboratory, Upton, New York
| | - S Kohn
- Department of Physics, University of California, Berkeley, California 94720
| | - M Kramer
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - O Kyzylova
- Department of Physics, Drexel University, Philadelphia, Pennsylvania
| | - C E Lane
- Department of Physics, Drexel University, Philadelphia, Pennsylvania
| | - T J Langford
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - J LaRosa
- National Institute of Standards and Technology, Gaithersburg, Maryland
| | - J Lee
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - J H C Lee
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - R T Lei
- Dongguan University of Technology, Dongguan
| | - R Leitner
- Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic
| | - J K C Leung
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - F Li
- Institute of High Energy Physics, Beijing
| | - H L Li
- Institute of High Energy Physics, Beijing
| | - J J Li
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Q J Li
- Institute of High Energy Physics, Beijing
| | - R H Li
- Institute of High Energy Physics, Beijing
| | - S Li
- Dongguan University of Technology, Dongguan
| | - S C Li
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | - W D Li
- Institute of High Energy Physics, Beijing
| | - X N Li
- Institute of High Energy Physics, Beijing
| | - X Q Li
- School of Physics, Nankai University, Tianjin
| | - Y F Li
- Institute of High Energy Physics, Beijing
| | - Z B Li
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - H Liang
- University of Science and Technology of China, Hefei
| | - C J Lin
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - G L Lin
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - S Lin
- Dongguan University of Technology, Dongguan
| | - J J Ling
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - J M Link
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | | | - B R Littlejohn
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - J C Liu
- Institute of High Energy Physics, Beijing
| | - J L Liu
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai
| | - J X Liu
- Institute of High Energy Physics, Beijing
| | - C Lu
- Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544
| | - H Q Lu
- Institute of High Energy Physics, Beijing
| | - X Lu
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee
| | - K B Luk
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - B Z Ma
- Shandong University, Jinan
| | - X B Ma
- North China Electric Power University, Beijing
| | - X Y Ma
- Institute of High Energy Physics, Beijing
| | - Y Q Ma
- Institute of High Energy Physics, Beijing
| | - R C Mandujano
- Department of Physics and Astronomy, University of California, Irvine, California 92697
| | - J Maricic
- Department of Physics & Astronomy, University of Hawaii, Honolulu, Hawaii
| | - C Marshall
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - K T McDonald
- Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544
| | - R D McKeown
- California Institute of Technology, Pasadena, California 91125
- College of William and Mary, Williamsburg, Virginia 23187
| | - M P Mendenhall
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California
| | - Y Meng
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai
| | - A M Meyer
- Department of Physics & Astronomy, University of Hawaii, Honolulu, Hawaii
| | - R Milincic
- Department of Physics & Astronomy, University of Hawaii, Honolulu, Hawaii
| | - P E Mueller
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
| | - H P Mumm
- National Institute of Standards and Technology, Gaithersburg, Maryland
| | - J Napolitano
- Department of Physics, Temple University, Philadelphia, Pennsylvania
| | - D Naumov
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
| | - E Naumova
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia, Pennsylvania
| | - T M T Nguyen
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - J A Nikkel
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - S Nour
- National Institute of Standards and Technology, Gaithersburg, Maryland
| | - J P Ochoa-Ricoux
- Department of Physics and Astronomy, University of California, Irvine, California 92697
| | - A Olshevskiy
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
| | - J L Palomino
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - H-R Pan
- Department of Physics, National Taiwan University, Taipei
| | - J Park
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | - S Patton
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - J C Peng
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - C S J Pun
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - D A Pushin
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario
| | - F Z Qi
- Institute of High Energy Physics, Beijing
| | - M Qi
- Nanjing University, Nanjing
| | - X Qian
- Brookhaven National Laboratory, Upton, New York
| | - N Raper
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - J Ren
- China Institute of Atomic Energy, Beijing
| | - C Morales Reveco
- Department of Physics and Astronomy, University of California, Irvine, California 92697
| | - R Rosero
- Brookhaven National Laboratory, Upton, New York
| | - B Roskovec
- Department of Physics and Astronomy, University of California, Irvine, California 92697
| | - X C Ruan
- China Institute of Atomic Energy, Beijing
| | - M Searles
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee
| | - H Steiner
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - J L Sun
- China General Nuclear Power Group, Shenzhen
| | - P T Surukuchi
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - T Tmej
- Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic
| | - K Treskov
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
| | - W-H Tse
- Chinese University of Hong Kong, Hong Kong
| | - C E Tull
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - M A Tyra
- National Institute of Standards and Technology, Gaithersburg, Maryland
| | - R L Varner
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
| | - D Venegas-Vargas
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee
| | - B Viren
- Brookhaven National Laboratory, Upton, New York
| | - V Vorobel
- Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic
| | - C H Wang
- National United University, Miao-Li
| | - J Wang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - M Wang
- Shandong University, Jinan
| | - N Y Wang
- Beijing Normal University, Beijing
| | - R G Wang
- Institute of High Energy Physics, Beijing
| | - W Wang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
- College of William and Mary, Williamsburg, Virginia 23187
| | - W Wang
- Nanjing University, Nanjing
| | - X Wang
- College of Electronic Science and Engineering, National University of Defense Technology, Changsha
| | - Y Wang
- Nanjing University, Nanjing
| | - Y F Wang
- Institute of High Energy Physics, Beijing
| | - Z Wang
- Institute of High Energy Physics, Beijing
| | - Z Wang
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Z M Wang
- Institute of High Energy Physics, Beijing
| | - P B Weatherly
- Department of Physics, Drexel University, Philadelphia, Pennsylvania
| | - H Y Wei
- Brookhaven National Laboratory, Upton, New York
| | - L H Wei
- Institute of High Energy Physics, Beijing
| | - L J Wen
- Institute of High Energy Physics, Beijing
| | | | - C White
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - J Wilhelmi
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut
| | - H L H Wong
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - A Woolverton
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario
| | - E Worcester
- Brookhaven National Laboratory, Upton, New York
| | - D R Wu
- Institute of High Energy Physics, Beijing
| | - F L Wu
- Nanjing University, Nanjing
| | - Q Wu
- Shandong University, Jinan
| | - W J Wu
- Institute of High Energy Physics, Beijing
| | - D M Xia
- Chongqing University, Chongqing
| | - Z Q Xie
- Institute of High Energy Physics, Beijing
| | - Z Z Xing
- Institute of High Energy Physics, Beijing
| | - H K Xu
- Institute of High Energy Physics, Beijing
| | - J L Xu
- Institute of High Energy Physics, Beijing
| | - T Xu
- Department of Engineering Physics, Tsinghua University, Beijing
| | - T Xue
- Department of Engineering Physics, Tsinghua University, Beijing
| | - C G Yang
- Institute of High Energy Physics, Beijing
| | - L Yang
- Dongguan University of Technology, Dongguan
| | - Y Z Yang
- Department of Engineering Physics, Tsinghua University, Beijing
| | - H F Yao
- Institute of High Energy Physics, Beijing
| | - M Ye
- Institute of High Energy Physics, Beijing
| | - M Yeh
- Brookhaven National Laboratory, Upton, New York
| | - B L Young
- Iowa State University, Ames, Iowa 50011
| | - H Z Yu
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - Z Y Yu
- Institute of High Energy Physics, Beijing
| | - B B Yue
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - V Zavadskyi
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
| | - S Zeng
- Institute of High Energy Physics, Beijing
| | - Y Zeng
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - L Zhan
- Institute of High Energy Physics, Beijing
| | - C Zhang
- Brookhaven National Laboratory, Upton, New York
| | - F Y Zhang
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai
| | - H H Zhang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - J W Zhang
- Institute of High Energy Physics, Beijing
| | - Q M Zhang
- Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an
| | - S Q Zhang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - X Zhang
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California
| | - X T Zhang
- Institute of High Energy Physics, Beijing
| | - Y M Zhang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - Y X Zhang
- China General Nuclear Power Group, Shenzhen
| | - Y Y Zhang
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai
| | - Z J Zhang
- Dongguan University of Technology, Dongguan
| | - Z P Zhang
- University of Science and Technology of China, Hefei
| | - Z Y Zhang
- Institute of High Energy Physics, Beijing
| | - J Zhao
- Institute of High Energy Physics, Beijing
| | - R Z Zhao
- Institute of High Energy Physics, Beijing
| | - L Zhou
- Institute of High Energy Physics, Beijing
| | - H L Zhuang
- Institute of High Energy Physics, Beijing
| | - J H Zou
- Institute of High Energy Physics, Beijing
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5
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Almazán H, Andriamirado M, Balantekin AB, Band HR, Bass CD, Bergeron DE, Bernard L, Blanchet A, Bonhomme A, Bowden NS, Bryan CD, Buck C, Classen T, Conant AJ, Deichert G, Del Amo Sanchez P, Delgado A, Diwan MV, Dolinski MJ, El Atmani I, Erickson A, Foust BT, Gaison JK, Galindo-Uribarri A, Gilbert CE, Hans S, Hansell AB, Heeger KM, Heffron B, Jaffe DE, Jayakumar S, Ji X, Jones DC, Koblanski J, Kyzylova O, Labit L, Lamblin J, Lane CE, Langford TJ, LaRosa J, Letourneau A, Lhuillier D, Licciardi M, Lindner M, Littlejohn BR, Lu X, Maricic J, Materna T, Mendenhall MP, Meyer AM, Milincic R, Mueller PE, Mumm HP, Napolitano J, Neilson R, Nikkel JA, Nour S, Palomino JL, Pessard H, Pushin DA, Qian X, Réal JS, Ricol JS, Roca C, Rogly R, Rosero R, Salagnac T, Savu V, Schoppmann S, Searles M, Sergeyeva V, Soldner T, Stutz A, Surukuchi PT, Tyra MA, Varner RL, Venegas-Vargas D, Vialat M, Weatherly PB, White C, Wilhelmi J, Woolverton A, Yeh M, Zhang C, Zhang X. Joint Measurement of the ^{235}U Antineutrino Spectrum by PROSPECT and STEREO. Phys Rev Lett 2022; 128:081802. [PMID: 35275665 DOI: 10.1103/physrevlett.128.081802] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
The PROSPECT and STEREO collaborations present a combined measurement of the pure ^{235}U antineutrino spectrum, without site specific corrections or detector-dependent effects. The spectral measurements of the two highest precision experiments at research reactors are found to be compatible with χ^{2}/ndf=24.1/21, allowing a joint unfolding of the prompt energy measurements into antineutrino energy. This ν[over ¯]_{e} energy spectrum is provided to the community, and an excess of events relative to the Huber model is found in the 5-6 MeV region. When a Gaussian bump is fitted to the excess, the data-model χ^{2} value is improved, corresponding to a 2.4σ significance.
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Affiliation(s)
- H Almazán
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - M Andriamirado
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois, USA
| | - A B Balantekin
- Department of Physics, University of Wisconsin, Madison, Wisconsin, USA
| | - H R Band
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - C D Bass
- Department of Physics, Le Moyne College, Syracuse, New York, USA
| | - D E Bergeron
- National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - L Bernard
- University Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
| | - A Blanchet
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A Bonhomme
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - N S Bowden
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California, USA
| | - C D Bryan
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - C Buck
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - T Classen
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California, USA
| | - A J Conant
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - G Deichert
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | | | - A Delgado
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, USA
| | - M V Diwan
- Brookhaven National Laboratory, Upton, New York, USA
| | - M J Dolinski
- Department of Physics, Drexel University, Philadelphia, Pennsylvania, USA
| | - I El Atmani
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A Erickson
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia USA
| | - B T Foust
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - J K Gaison
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - A Galindo-Uribarri
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, USA
| | - C E Gilbert
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, USA
| | - S Hans
- Brookhaven National Laboratory, Upton, New York, USA
| | - A B Hansell
- Department of Physics, Temple University, Philadelphia, Pennsylvania, USA
| | - K M Heeger
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - B Heffron
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, USA
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York, USA
| | - S Jayakumar
- Department of Physics, Drexel University, Philadelphia, Pennsylvania, USA
| | - X Ji
- Brookhaven National Laboratory, Upton, New York, USA
| | - D C Jones
- Department of Physics, Temple University, Philadelphia, Pennsylvania, USA
| | - J Koblanski
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii, USA
| | - O Kyzylova
- Department of Physics, Drexel University, Philadelphia, Pennsylvania, USA
| | - L Labit
- Univ. Savoie Mont Blanc, CNRS, LAPP-IN2P3, 74000 Annecy, France
| | - J Lamblin
- University Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
| | - C E Lane
- Department of Physics, Drexel University, Philadelphia, Pennsylvania, USA
| | - T J Langford
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - J LaRosa
- National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - A Letourneau
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - D Lhuillier
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - M Licciardi
- University Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
| | - M Lindner
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - B R Littlejohn
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois, USA
| | - X Lu
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, USA
| | - J Maricic
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii, USA
| | - T Materna
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - M P Mendenhall
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California, USA
| | - A M Meyer
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii, USA
| | - R Milincic
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii, USA
| | - P E Mueller
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - H P Mumm
- National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - J Napolitano
- Department of Physics, Temple University, Philadelphia, Pennsylvania, USA
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia, Pennsylvania, USA
| | - J A Nikkel
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - S Nour
- National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - J L Palomino
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois, USA
| | - H Pessard
- Univ. Savoie Mont Blanc, CNRS, LAPP-IN2P3, 74000 Annecy, France
| | - D A Pushin
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada
| | - X Qian
- Brookhaven National Laboratory, Upton, New York, USA
| | - J-S Réal
- University Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
| | - J-S Ricol
- University Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
| | - C Roca
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - R Rogly
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - R Rosero
- Brookhaven National Laboratory, Upton, New York, USA
| | - T Salagnac
- University Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
| | - V Savu
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - S Schoppmann
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - M Searles
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - V Sergeyeva
- Univ. Savoie Mont Blanc, CNRS, LAPP-IN2P3, 74000 Annecy, France
| | - T Soldner
- Institut Laue-Langevin, CS 20156, 38042 Grenoble Cedex 9, France
| | - A Stutz
- University Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
| | - P T Surukuchi
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - M A Tyra
- National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - R L Varner
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - D Venegas-Vargas
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee, USA
| | - M Vialat
- Institut Laue-Langevin, CS 20156, 38042 Grenoble Cedex 9, France
| | - P B Weatherly
- Department of Physics, Drexel University, Philadelphia, Pennsylvania, USA
| | - C White
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois, USA
| | - J Wilhelmi
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut, USA
| | - A Woolverton
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada
| | - M Yeh
- Brookhaven National Laboratory, Upton, New York, USA
| | - C Zhang
- Brookhaven National Laboratory, Upton, New York, USA
| | - X Zhang
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California, USA
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6
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Dworkin M, Akintayo T, Calem D, Doran C, Guth A, Kamami EM, Kar J, LaRosa J, Liu JC, Pérez Jiménez IN, Frasso R. Life during the pandemic: an international photo-elicitation study with medical students. BMC Med Educ 2021; 21:244. [PMID: 33906671 PMCID: PMC8078097 DOI: 10.1186/s12909-021-02684-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/16/2021] [Indexed: 05/16/2023]
Abstract
BACKGROUND The SARS-CoV-2 (COVID-19) pandemic is a global event with unprecedented impact on individuals and communities around the world. The purpose of this study is to use a modified photo-elicitation methodology to examine the impact of the COVID-19 pandemic on the lives of medical students and their communities around the world. METHODS Participating medical students were asked to take photographs for 14 days. In lieu of an interview, which is customary for photo-elicitation projects, participants were asked to share a reflection (a paragraph or two) for each photograph they contributed to the study. RESULTS Between April 27th, 2020 and May 11th, 2020 26 students from 19 medical schools across 13 countries shared photographs and reflections. Qualitative analysis of written reflections revealed that medical students felt the impact of the pandemic on several levels 1) individual, 2) interpersonal, 3) educational, and 4) societal. CONCLUSIONS The COVID-19 pandemic has impacted the lives of medical students on multiple levels. As individuals, students felt emotional distress but found resilience through physical activity and the establishment of new routines. Many students felt isolated as their interpersonal relationships were confined due to social distancing measures. These feelings could be combated with new educational initiatives focused on group collaboration. Lastly, students reflecting on the larger societal implications were concerned with the economic ramifications of the virus and its impact on their future. This study brought together students from several different countries to engage in an applied learning program as a model for equitable global health research.
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Affiliation(s)
- M Dworkin
- Warren Alpert Medical School, Brown University, Providence, RI, USA
- College of Population Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - T Akintayo
- Obafemi Awolowo University, Ife, Nigeria
| | - D Calem
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - C Doran
- College of Population Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - A Guth
- College of Population Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - E M Kamami
- Drexel University, Philadelphia, PA, USA
| | - J Kar
- New Vision University School of Medicine, Tbilisi, Georgia
| | - J LaRosa
- College of Population Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - J C Liu
- Royal College of Surgeons in Ireland - Medical University of Bahrain, Busaiteen, Bahrain
| | - I N Pérez Jiménez
- Universidad Nacional Autónoma de México, Facultad de Medicina, Mexico City, Mexico
| | - R Frasso
- College of Population Health, Thomas Jefferson University, Philadelphia, PA, USA.
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7
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Balantekin AB, Band HR, Bass CD, Bergeron DE, Berish D, Bowden NS, Brodsky JP, Bryan CD, Classen T, Conant AJ, Deichert G, Diwan MV, Dolinski MJ, Erickson A, Foust BT, Gaison JK, Galindo-Uribarri A, Gilbert CE, Hackett BT, Hans S, Hansell AB, Heeger KM, Heffron B, Jaffe DE, Ji X, Jones DC, Kyzylova O, Lane CE, Langford TJ, LaRosa J, Littlejohn BR, Lu X, Maricic J, Mendenhall MP, Milincic R, Mitchell I, Mueller PE, Mumm HP, Napolitano J, Neilson R, Nikkel JA, Norcini D, Nour S, Palomino-Gallo JL, Pushin DA, Qian X, Romero-Romero E, Rosero R, Surukuchi PT, Tyra MA, Varner RL, White C, Wilhelmi J, Woolverton A, Yeh M, Zhang A, Zhang C, Zhang X. Nonfuel Antineutrino Contributions in the High Flux Isotope Reactor. ACTA ACUST UNITED AC 2020; 101. [PMID: 33336123 DOI: 10.1103/physrevc.101.054605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Reactor neutrino experiments have seen major improvements in precision in recent years. With the experimental uncertainties becoming lower than those from theory, carefully considering all sources of ν ¯ e is important when making theoretical predictions. One source of ν ¯ e that is often neglected arises from the irradiation of the nonfuel materials in reactors. The ν ¯ e rates and energies from these sources vary widely based on the reactor type, configuration, and sampling stage during the reactor cycle and have to be carefully considered for each experiment independently. In this article, we present a formalism for selecting the possible ν ¯ e sources arising from the neutron captures on reactor and target materials. We apply this formalism to the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory, the ν ¯ e source for the the Precision Reactor Oscillation and Spectrum Measurement (PROSPECT) experiment. Overall, we observe that the nonfuel ν ¯ e contributions from HFIR to PROSPECT amount to 1% above the inverse beta decay threshold with a maximum contribution of 9% in the 1.8-2.0 MeV range. Nonfuel contributions can be particularly high for research reactors like HFIR because of the choice of structural and reflector material in addition to the intentional irradiation of target material for isotope production. We show that typical commercial pressurized water reactors fueled with low-enriched uranium will have significantly smaller nonfuel ν ¯ e contribution.
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Affiliation(s)
- A B Balantekin
- Department of Physics, University of Wisconsin, Madison, Madison, WI 53706, USA
| | - H R Band
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - C D Bass
- Department of Physics, Le Moyne College, Syracuse, NY 13214, USA
| | - D E Bergeron
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - D Berish
- Department of Physics, Temple University, Philadelphia, PA 19122, USA
| | - N S Bowden
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - J P Brodsky
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - C D Bryan
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - T Classen
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - A J Conant
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.,High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - G Deichert
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - M V Diwan
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - M J Dolinski
- Department of Physics, Drexel University, Philadelphia, PA 19104, USA
| | - A Erickson
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - B T Foust
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - J K Gaison
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - A Galindo-Uribarri
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.,Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA
| | - C E Gilbert
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.,Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA
| | - B T Hackett
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.,Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA
| | - S Hans
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - A B Hansell
- Department of Physics, Temple University, Philadelphia, PA 19122, USA
| | - K M Heeger
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - B Heffron
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.,Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - X Ji
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - D C Jones
- Department of Physics, Temple University, Philadelphia, PA 19122, USA
| | - O Kyzylova
- Department of Physics, Drexel University, Philadelphia, PA 19104, USA
| | - C E Lane
- Department of Physics, Drexel University, Philadelphia, PA 19104, USA
| | - T J Langford
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - J LaRosa
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - B R Littlejohn
- Department of Physics, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - X Lu
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.,Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA
| | - J Maricic
- Department of Physics & Astronomy, University of Hawaii, Honolulu, HA 96822, USA
| | - M P Mendenhall
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - R Milincic
- Department of Physics & Astronomy, University of Hawaii, Honolulu, HA 96822, USA
| | - I Mitchell
- Department of Physics & Astronomy, University of Hawaii, Honolulu, HA 96822, USA
| | - P E Mueller
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - H P Mumm
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J Napolitano
- Department of Physics, Temple University, Philadelphia, PA 19122, USA
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia, PA 19104, USA
| | - J A Nikkel
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - D Norcini
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - S Nour
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J L Palomino-Gallo
- Department of Physics, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - D A Pushin
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - X Qian
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - E Romero-Romero
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.,Department of Physics, Temple University, Philadelphia, PA 19122, USA
| | - R Rosero
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - P T Surukuchi
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520, USA
| | - M A Tyra
- National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - R L Varner
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - C White
- Department of Physics, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - J Wilhelmi
- Department of Physics, Temple University, Philadelphia, PA 19122, USA
| | - A Woolverton
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - M Yeh
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - A Zhang
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - C Zhang
- Brookhaven National Laboratory, Upton, NY 11973, USA
| | - X Zhang
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
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8
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Ashenfelter J, Balantekin AB, Band HR, Bass CD, Bergeron DE, Berish D, Bowden NS, Brodsky JP, Bryan CD, Cherwinka JJ, Classen T, Conant AJ, Cox AA, Davee D, Dean D, Deichert G, Diwan MV, Dolinski MJ, Erickson A, Febbraro M, Foust BT, Gaison JK, Galindo-Uribarri A, Gilbert CE, Gilje KE, Hackett BT, Hans S, Hansell AB, Heeger KM, Insler J, Jaffe DE, Ji X, Jones DC, Kyzylova O, Lane CE, Langford TJ, LaRosa J, Littlejohn BR, Lu X, Martinez Caicedo DA, Matta JT, McKeown RD, Mendenhall MP, Minock JM, Mueller PE, Mumm HP, Napolitano J, Neilson R, Nikkel JA, Norcini D, Nour S, Pushin DA, Qian X, Romero-Romero E, Rosero R, Sarenac D, Surukuchi PT, Telles AB, Tyra MA, Varner RL, Viren B, White C, Wilhelmi J, Wise T, Yeh M, Yen YR, Zhang A, Zhang C, Zhang X. Measurement of the Antineutrino Spectrum from ^{235}U Fission at HFIR with PROSPECT. Phys Rev Lett 2019; 122:251801. [PMID: 31347897 DOI: 10.1103/physrevlett.122.251801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/22/2019] [Indexed: 06/10/2023]
Abstract
This Letter reports the first measurement of the ^{235}U ν[over ¯]_{e} energy spectrum by PROSPECT, the Precision Reactor Oscillation and Spectrum experiment, operating 7.9 m from the 85 MW_{th} highly enriched uranium (HEU) High Flux Isotope Reactor. With a surface-based, segmented detector, PROSPECT has observed 31678±304(stat) ν[over ¯]_{e}-induced inverse beta decays, the largest sample from HEU fission to date, 99% of which are attributed to ^{235}U. Despite broad agreement, comparison of the Huber ^{235}U model to the measured spectrum produces a χ^{2}/ndf=51.4/31, driven primarily by deviations in two localized energy regions. The measured ^{235}U spectrum shape is consistent with a deviation relative to prediction equal in size to that observed at low-enriched uranium power reactors in the ν[over ¯]_{e} energy region of 5-7 MeV.
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Affiliation(s)
- J Ashenfelter
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A B Balantekin
- Department of Physics, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA
| | - H R Band
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - C D Bass
- Department of Physics, Le Moyne College, Syracuse, New York 13214, USA
| | - D E Bergeron
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - D Berish
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - N S Bowden
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J P Brodsky
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C D Bryan
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - J J Cherwinka
- Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA
| | - T Classen
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A J Conant
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - A A Cox
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - D Davee
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA
| | - D Dean
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - G Deichert
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - M V Diwan
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M J Dolinski
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - A Erickson
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - M Febbraro
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - B T Foust
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J K Gaison
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A Galindo-Uribarri
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - C E Gilbert
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - K E Gilje
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - B T Hackett
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - S Hans
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A B Hansell
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - K M Heeger
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J Insler
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - X Ji
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D C Jones
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - O Kyzylova
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - C E Lane
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - T J Langford
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J LaRosa
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - B R Littlejohn
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - X Lu
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - D A Martinez Caicedo
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - J T Matta
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - R D McKeown
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA
| | - M P Mendenhall
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J M Minock
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - P E Mueller
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - H P Mumm
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - J Napolitano
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - J A Nikkel
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - D Norcini
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - S Nour
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - D A Pushin
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - X Qian
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E Romero-Romero
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - R Rosero
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D Sarenac
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - P T Surukuchi
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - A B Telles
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - M A Tyra
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - R L Varner
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - B Viren
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C White
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - J Wilhelmi
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Wise
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - M Yeh
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y-R Yen
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - A Zhang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Zhang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - X Zhang
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
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9
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Adedayo AM, Eluwole A, Tedla F, Kremer A, Mastrogiovanni N, Khan MA, Rosenberg C, Dreizen P, LaRosa J, Salciccioli L, Boutdjir M, Banerji MA, Brown C, Salifu M, Lazar J, Bakillah A. RELATIONSHIP BETWEEN SOLUBLE F11 RECEPTOR, TOTAL NITRIC OXIDE LEVELS, AND VASCULAR FUNCTION IN AFRICAN AMERICANS WITH TYPE II DIABETES. J Am Coll Cardiol 2019. [DOI: 10.1016/s0735-1097(19)32682-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Armitage J, Baigent C, Barnes E, Betteridge DJ, Blackwell L, Blazing M, Bowman L, Braunwald E, Byington R, Cannon C, Clearfield M, Colhoun H, Collins R, Dahlöf B, Davies K, Davis B, de Lemos J, Downs JR, Durrington P, Emberson J, Fellström B, Flather M, Ford I, Franzosi MG, Fulcher J, Fuller J, Furberg C, Gordon D, Goto S, Gotto A, Halls H, Harper C, Hawkins CM, Herrington W, Hitman G, Holdaas H, Holland L, Jardine A, Jukema JW, Kastelein J, Kean S, Keech A, Kirby A, Kjekshus J, Knatterud (deceased) G, Knopp (deceased) R, Koenig W, Koren M, Krane V, Landray MJ, LaRosa J, Lonn E, MacFarlane P, MacMahon S, Maggioni A, Marchioli R, Marschner I, Mihaylova B, Moyé L, Murphy S, Nakamura H, Neil A, Newman C, O'Connell R, Packard C, Parish S, Pedersen T, Peto R, Pfeffer M, Poulter N, Preiss D, Reith C, Ridker P, Robertson M, Sacks F, Sattar N, Schmieder R, Serruys P, Sever P, Shaw J, Shear C, Simes J, Sleight P, Spata E, Tavazzi L, Tobert J, Tognoni G, Tonkin A, Trompet S, Varigos J, Wanner C, Wedel H, White H, Wikstrand J, Wilhelmsen L, Wilson K, Young R, Yusuf S, Zannad F. Efficacy and safety of statin therapy in older people: a meta-analysis of individual participant data from 28 randomised controlled trials. Lancet 2019; 393:407-415. [PMID: 30712900 PMCID: PMC6429627 DOI: 10.1016/s0140-6736(18)31942-1] [Citation(s) in RCA: 428] [Impact Index Per Article: 85.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 01/19/2023]
Abstract
BACKGROUND Statin therapy has been shown to reduce major vascular events and vascular mortality in a wide range of individuals, but there is uncertainty about its efficacy and safety among older people. We undertook a meta-analysis of data from all large statin trials to compare the effects of statin therapy at different ages. METHODS In this meta-analysis, randomised trials of statin therapy were eligible if they aimed to recruit at least 1000 participants with a scheduled treatment duration of at least 2 years. We analysed individual participant data from 22 trials (n=134 537) and detailed summary data from one trial (n=12 705) of statin therapy versus control, plus individual participant data from five trials of more intensive versus less intensive statin therapy (n=39 612). We subdivided participants into six age groups (55 years or younger, 56-60 years, 61-65 years, 66-70 years, 71-75 years, and older than 75 years). We estimated effects on major vascular events (ie, major coronary events, strokes, and coronary revascularisations), cause-specific mortality, and cancer incidence as the rate ratio (RR) per 1·0 mmol/L reduction in LDL cholesterol. We compared proportional risk reductions in different age subgroups by use of standard χ2 tests for heterogeneity when there were two groups, or trend when there were more than two groups. FINDINGS 14 483 (8%) of 186 854 participants in the 28 trials were older than 75 years at randomisation, and the median follow-up duration was 4·9 years. Overall, statin therapy or a more intensive statin regimen produced a 21% (RR 0·79, 95% CI 0·77-0·81) proportional reduction in major vascular events per 1·0 mmol/L reduction in LDL cholesterol. We observed a significant reduction in major vascular events in all age groups. Although proportional reductions in major vascular events diminished slightly with age, this trend was not statistically significant (ptrend=0·06). Overall, statin or more intensive therapy yielded a 24% (RR 0·76, 95% CI 0·73-0·79) proportional reduction in major coronary events per 1·0 mmol/L reduction in LDL cholesterol, and with increasing age, we observed a trend towards smaller proportional risk reductions in major coronary events (ptrend=0·009). We observed a 25% (RR 0·75, 95% CI 0·73-0·78) proportional reduction in the risk of coronary revascularisation procedures with statin therapy or a more intensive statin regimen per 1·0 mmol/L lower LDL cholesterol, which did not differ significantly across age groups (ptrend=0·6). Similarly, the proportional reductions in stroke of any type (RR 0·84, 95% CI 0·80-0·89) did not differ significantly across age groups (ptrend=0·7). After exclusion of four trials which enrolled only patients with heart failure or undergoing renal dialysis (among whom statin therapy has not been shown to be effective), the trend to smaller proportional risk reductions with increasing age persisted for major coronary events (ptrend=0·01), and remained non-significant for major vascular events (ptrend=0·3). The proportional reduction in major vascular events was similar, irrespective of age, among patients with pre-existing vascular disease (ptrend=0·2), but appeared smaller among older than among younger individuals not known to have vascular disease (ptrend=0·05). We found a 12% (RR 0·88, 95% CI 0·85-0·91) proportional reduction in vascular mortality per 1·0 mmol/L reduction in LDL cholesterol, with a trend towards smaller proportional reductions with older age (ptrend=0·004), but this trend did not persist after exclusion of the heart failure or dialysis trials (ptrend=0·2). Statin therapy had no effect at any age on non-vascular mortality, cancer death, or cancer incidence. INTERPRETATION Statin therapy produces significant reductions in major vascular events irrespective of age, but there is less direct evidence of benefit among patients older than 75 years who do not already have evidence of occlusive vascular disease. This limitation is now being addressed by further trials. FUNDING Australian National Health and Medical Research Council, National Institute for Health Research Oxford Biomedical Research Centre, UK Medical Research Council, and British Heart Foundation.
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Ashenfelter J, Balantekin AB, Baldenegro C, Band HR, Bass CD, Bergeron DE, Berish D, Bignell LJ, Bowden NS, Bricco J, Brodsky JP, Bryan CD, Bykadorova Telles A, Cherwinka JJ, Classen T, Commeford K, Conant AJ, Cox AA, Davee D, Dean D, Deichert G, Diwan MV, Dolinski MJ, Erickson A, Febbraro M, Foust BT, Gaison JK, Galindo-Uribarri A, Gilbert CE, Gilje KE, Glenn A, Goddard BW, Hackett BT, Han K, Hans S, Hansell AB, Heeger KM, Heffron B, Insler J, Jaffe DE, Ji X, Jones DC, Koehler K, Kyzylova O, Lane CE, Langford TJ, LaRosa J, Littlejohn BR, Lopez F, Lu X, Martinez Caicedo DA, Matta JT, McKeown RD, Mendenhall MP, Miller HJ, Minock JM, Mueller PE, Mumm HP, Napolitano J, Neilson R, Nikkel JA, Norcini D, Nour S, Pushin DA, Qian X, Romero-Romero E, Rosero R, Sarenac D, Seilhan BS, Sharma R, Surukuchi PT, Trinh C, Tyra MA, Varner RL, Viren B, Wagner JM, Wang W, White B, White C, Wilhelmi J, Wise T, Yao H, Yeh M, Yen YR, Zhang A, Zhang C, Zhang X, Zhao M. First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT. Phys Rev Lett 2018; 121:251802. [PMID: 30608854 DOI: 10.1103/physrevlett.121.251802] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Indexed: 06/09/2023]
Abstract
This Letter reports the first scientific results from the observation of antineutrinos emitted by fission products of ^{235}U at the High Flux Isotope Reactor. PROSPECT, the Precision Reactor Oscillation and Spectrum Experiment, consists of a segmented 4 ton ^{6}Li-doped liquid scintillator detector covering a baseline range of 7-9 m from the reactor and operating under less than 1 m water equivalent overburden. Data collected during 33 live days of reactor operation at a nominal power of 85 MW yield a detection of 25 461±283 (stat) inverse beta decays. Observation of reactor antineutrinos can be achieved in PROSPECT at 5σ statistical significance within 2 h of on-surface reactor-on data taking. A reactor model independent analysis of the inverse beta decay prompt energy spectrum as a function of baseline constrains significant portions of the previously allowed sterile neutrino oscillation parameter space at 95% confidence level and disfavors the best fit of the reactor antineutrino anomaly at 2.2σ confidence level.
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Affiliation(s)
- J Ashenfelter
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A B Balantekin
- Department of Physics, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA
| | - C Baldenegro
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - H R Band
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - C D Bass
- Department of Physics, Le Moyne College, Syracuse, New York 13214, USA
| | - D E Bergeron
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - D Berish
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L J Bignell
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - N S Bowden
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J Bricco
- Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA
| | - J P Brodsky
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C D Bryan
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - A Bykadorova Telles
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J J Cherwinka
- Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA
| | - T Classen
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - K Commeford
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - A J Conant
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - A A Cox
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - D Davee
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23185, USA
| | - D Dean
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - G Deichert
- High Flux Isotope Reactor, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - M V Diwan
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M J Dolinski
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - A Erickson
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - M Febbraro
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - B T Foust
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J K Gaison
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - A Galindo-Uribarri
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - C E Gilbert
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - K E Gilje
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - A Glenn
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - B W Goddard
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - B T Hackett
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - K Han
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - S Hans
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A B Hansell
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - K M Heeger
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - B Heffron
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - J Insler
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - X Ji
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D C Jones
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - K Koehler
- Physical Sciences Laboratory, University of Wisconsin, Madison, Madison, Wisconsin 53706, USA
| | - O Kyzylova
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - C E Lane
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - T J Langford
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - J LaRosa
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - B R Littlejohn
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - F Lopez
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - X Lu
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - D A Martinez Caicedo
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - J T Matta
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - R D McKeown
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23185, USA
| | - M P Mendenhall
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H J Miller
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - J M Minock
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - P E Mueller
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - H P Mumm
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - J Napolitano
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Neilson
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - J A Nikkel
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - D Norcini
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - S Nour
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - D A Pushin
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - X Qian
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E Romero-Romero
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - R Rosero
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D Sarenac
- Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - B S Seilhan
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Sharma
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - P T Surukuchi
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - C Trinh
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - M A Tyra
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - R L Varner
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - B Viren
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - J M Wagner
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - W Wang
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B White
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - C White
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - J Wilhelmi
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Wise
- Wright Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520, USA
| | - H Yao
- Department of Physics, College of William and Mary, Williamsburg, Virginia 23185, USA
| | - M Yeh
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y-R Yen
- Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - A Zhang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Zhang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - X Zhang
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - M Zhao
- Brookhaven National Laboratory, Upton, New York 11973, USA
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Semb AG, Kvien TK, DeMicco DA, Fayyad R, Wun CC, LaRosa J, Betteridge J, Pedersen TR, Holme I. Prediction of cardiovascular events in patients with ankylosing spondylitis and psoriatic arthritis: role of lipoproteins in a high-risk population. J Rheumatol 2012; 39:1433-40. [PMID: 22660802 DOI: 10.3899/jrheum.111307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE To evaluate lipids and apolipoproteins as predictors of cardiovascular mortality and morbidity (CVD) in patients with spondyloarthritis (SpA). METHODS In the pooled cohort of participants in the IDEAL, TNT, and CARDS trials, 50 had ankylosing spondylitis (AS), 36 had psoriatic arthritis (PsA), and 21,641 did not have AS or PsA (non-SpA). We compared lipid levels at baseline between AS or PsA and non-SpA, and hazard ratios (HR) for CVD were calculated in a Cox proportional hazard model. RESULTS Atherogenic lipids were lower in samples from AS, but not in PsA, compared to non-SpA. The HR for 1 SD increase in baseline lipids for future CVD was for total cholesterol 1.39 (95% CI 0.82, 2.36) in AS, 1.01 (95% CI 0.44, 2.31) in PsA, and 1.10 (95% CI 1.07, 1.14) in non-SpA. Both high-density lipoprotein (HDL) and apolipoprotein (ApoA-1) were significantly associated with CVD in AS (HR 3.67, 95% CI 1.47, 9.06, and HR 1.89, 95% CI 1.02, 3.54, respectively), in contrast to PsA (HDL: HR 1.03, 95% CI 0.49, 2.15; ApoA-1: HR 0.79, 95% CI 0.34, 1.89) and non-SpA (HDL: HR 0.86, 95% CI 0.84, 0.89; ApoA-1: HR 0.88, 95% CI 0.85, 0.91). CONCLUSION HDL and ApoA-1 were surprisingly associated with increased risk of future CVD in patients with AS, whereas these lipids were protective in non-SpA.
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Affiliation(s)
- Anne Grete Semb
- Department of Rheumatology, Diakonhjemmet Hospital, PO Box 23 Vinderen, NO-0319 Oslo, Norway.
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Roberts WC, Gotto AM, Guyton J, LaRosa J, Viggiani R. The editor's roundtable: Closing the clinical practice gap-using evidence-based treatments for managing lipids. Am J Cardiol 2011; 107:230-42. [PMID: 21211600 DOI: 10.1016/j.amjcard.2010.09.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 09/24/2010] [Indexed: 10/18/2022]
Affiliation(s)
- William C Roberts
- Baylor Heart and Vascular Institute, Baylor University Medical Center, Dallas, Texas, USA.
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Pham M, Sanchez-Cabeza J, Povinec P, Andor K, Arnold D, Benmansour M, Bikit I, Carvalho F, Dimitrova K, Edrev Z, Engeler C, Fouche F, Garcia-Orellana J, Gascó C, Gastaud J, Gudelis A, Hancock G, Holm E, Legarda F, Ikäheimonen T, Ilchmann C, Jenkinson A, Kanisch G, Kis-Benedek G, Kleinschmidt R, Koukouliou V, Kuhar B, LaRosa J, Lee SH, LePetit G, Levy-Palomo I, Liong Wee Kwong L, Llauradó M, Maringer F, Meyer M, Michalik B, Michel H, Nies H, Nour S, Oh JS, Oregioni B, Palomares J, Pantelic G, Pfitzner J, Pilvio R, Puskeiler L, Satake H, Schikowski J, Vitorovic G, Woodhead D, Wyse E. A new Certified Reference Material for radionuclides in Irish sea sediment (IAEA-385). Appl Radiat Isot 2008; 66:1711-7. [DOI: 10.1016/j.apradiso.2007.10.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2007] [Accepted: 10/16/2007] [Indexed: 10/22/2022]
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Waters D, Johnson C, Bittner V, DeMicco D, Breazna A, LaRosa J. EFFECT OF INTENSIVE CHOLESTEROL LOWERING WITH ATORVASTATIN 80MG IN PATIENTS WITH PREVIOUS REVASCULARIZATION: A TREATING TO NEW TARGETS (TNT) SUBSTUDY. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70800-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hassona RK, Sam AK, Osman OI, Sirelkhatim DA, LaRosa J. Assessment of Committed Effective Dose due to consumption of Red Sea coral reef fishes collected from the local market (Sudan). Sci Total Environ 2008; 393:214-218. [PMID: 18243278 DOI: 10.1016/j.scitotenv.2007.12.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2007] [Revised: 11/30/2007] [Accepted: 12/04/2007] [Indexed: 05/25/2023]
Abstract
An assessment of Committed Effective Dose (CED) due to consumption of Red Sea fish containing (210)Po and (137)Cs was performed for 23 different marine fish samples collected from the local market at Port Sudan. The fish were classified according to their feeding habits into three categories: carnivores, herbivores, and omnivores. Measured activity concentrations of (210)Po were found in the ranges 0.25-6.42 (carnivores), 0.7-5 (omnivores) and 1.5-3.8 (herbivores) Bq/kg fresh weight. In the same study, activity concentrations of Cs-137 were determined to be in the ranges 0.1-0.46 (carnivores), 0.09-0.35 (omnivores) and 0.09-0.32 (herbivores) Bq/kg fresh weight, which were several times lower than those of (210)Po. Appropriate conversion factors were used to derive the CED, which was found to be 0.012, 0.01 and 0.01 (microSv/yr) in carnivores, omnivores and herbivores, respectively, for (137)Cs. This contributes about 0.4% of the total dose exclusively by ingestion of fish. For (210)Po, it was found to be 3.47, 4.81 and 4.14 (microSv/yr) in carnivores, omnivores and herbivores, respectively, which represents 99.6% of the total dose (exclusively by ingestion of fish). The results of CED calculations suggest that the dose received by the Sudanese population from the consumption of marine fish is rather small and that the contribution of (137)Cs is negligible compared to (210)Po.
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Shepherd J, Barter P, Carmena R, Deedwania P, Fruchart JC, Haffner S, Hsia J, Breazna A, LaRosa J, Grundy S, Waters D. Effect of lowering LDL cholesterol substantially below currently recommended levels in patients with coronary heart disease and diabetes: the Treating to New Targets (TNT) study. Diabetes Care 2006; 29:1220-6. [PMID: 16731999 DOI: 10.2337/dc05-2465] [Citation(s) in RCA: 395] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The Treating to New Targets study showed that intensive lipid-lowering therapy with atorvastatin 80 mg/day provides significant clinical benefit beyond that afforded by atorvastatin 10 mg/day in patients with stable coronary heart disease (CHD). The objective of our study was to investigate whether similar benefits of high-dose intensive atorvastatin therapy can be achieved in patients with CHD and diabetes. RESEARCH DESIGN AND METHODS A total of 1,501 patients with diabetes and CHD, with LDL cholesterol levels of <130 mg/dl, were randomized to double-blind therapy with either atorvastatin 10 (n = 753) or 80 (n = 748) mg/day. Patients were followed for a median of 4.9 years. The primary end point was the time to first major cardiovascular event, defined as death from CHD, nonfatal non-procedure-related myocardial infarction, resuscitated cardiac arrest, or fatal or nonfatal stroke. RESULTS End-of-treatment mean LDL cholesterol levels were 98.6 mg/dl with atorvastatin 10 mg and 77.0 mg/dl with atorvastatin 80 mg. A primary event occurred in 135 patients (17.9%) receiving atorvastatin 10 mg, compared with 103 patients (13.8%) receiving atorvastatin 80 mg (hazard ratio 0.75 [95% CI 0.58-0.97], P = 0.026). Significant differences between the groups in favor of atorvastatin 80 mg were also observed for time to cerebrovascular event (0.69 [0.48-0.98], P = 0.037) and any cardiovascular event (0.85 [0.73-1.00], P = 0.044). There were no significant differences between the treatment groups in the rates of treatment-related adverse events and persistent elevations in liver enzymes. CONCLUSIONS Among patients with clinically evident CHD and diabetes, intensive therapy with atorvastatin 80 mg significantly reduced the rate of major cardiovascular events by 25% compared with atorvastatin 10 mg.
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Affiliation(s)
- James Shepherd
- Department of Vascular Biochemistry, Royal Infirmary, Glasgow G4 OSF, U.K.
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LaRosa J, Chikungwa M. Avoiding accidental IV injection. Can J Anaesth 2005; 52:211-2; author reply 212-3. [PMID: 15684270 DOI: 10.1007/bf03027736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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LaRosa J. Low-density lipoprotein lowering--a race to the bottom. Prev Cardiol 2004; 7:152-3. [PMID: 15539960 DOI: 10.1111/j.1520-037x.2004.03805.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
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Hoerger TJ, Bala MV, Bray JW, Wilcosky TC, LaRosa J. Treatment patterns and distribution of low-density lipoprotein cholesterol levels in treatment-eligible United States adults. Am J Cardiol 1998; 82:61-5. [PMID: 9671010 DOI: 10.1016/s0002-9149(98)00227-6] [Citation(s) in RCA: 122] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To estimate the fraction of United States (U.S.) adults who are eligible for treatment to reduce elevated low-density lipoprotein (LDL) cholesterol levels based on Adult Treatment Panel II (ATP II) guidelines and the percent reduction in LDL cholesterol required by those who qualify for treatment, we analyzed data on 7,423 respondents to Phase 2 of the third National Health and Nutrition Examination Survey (NHANES III) administered between 1991 and 1994. Approximately 28% of the U.S. adult population aged > or = 20 years is eligible for treatment based on ATP II guidelines. Eighty-two percent of adults with coronary heart disease are not at their target LDL cholesterol level of 100 mg/dl. Of those eligible for treatment, 65% report that they receive no treatment. Overall, 40% of people who qualify for drug therapy require an LDL cholesterol reduction of > 30% to meet their ATP II treatment goal. Approximately 75% of those with coronary heart disease who qualify for drug therapy require an LDL cholesterol reduction of >30%. Although elevated LDL cholesterol levels can be treated, prevalence rates in the U.S. adult population remain high. Several recent studies indicate that a considerable percentage of people treated with drug therapy do not reach their treatment goals. The findings in this study provide at least a partial explanation for why many patients receiving therapy do not reach their treatment goals: they require a larger reduction in LDL cholesterol than many therapies can provide.
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Affiliation(s)
- T J Hoerger
- Research Triangle Institute, Research Triangle Park, North Carolina 27709, USA
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Grundy SM, Balady GJ, Criqui MH, Fletcher G, Greenland P, Hiratzka LF, Houston-Miller N, Kris-Etherton P, Krumholz HM, LaRosa J, Ockene IS, Pearson TA, Reed J, Washington R, Smith SC. Primary prevention of coronary heart disease: guidance from Framingham: a statement for healthcare professionals from the AHA Task Force on Risk Reduction. American Heart Association. Circulation 1998; 97:1876-87. [PMID: 9603549 DOI: 10.1161/01.cir.97.18.1876] [Citation(s) in RCA: 324] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Grundy SM, Balady GJ, Criqui MH, Fletcher G, Greenland P, Hiratzka LF, Houston-Miller N, Kris-Etherton P, Krumholz HM, LaRosa J, Ockene IS, Pearson TA, Reed J, Washington R, Smith SC. Guide to primary prevention of cardiovascular diseases. A statement for healthcare professionals from the Task Force on Risk Reduction. American Heart Association Science Advisory and Coordinating Committee. Circulation 1997; 95:2329-31. [PMID: 9142014 DOI: 10.1161/01.cir.95.9.2329] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Grundy SM, Balady GJ, Criqui MH, Fletcher G, Greenland P, Hiratzka LF, Houston-Miller N, Kris-Etherton P, Krumholz HM, LaRosa J, Ockene IS, Pearson TA, Reed J, Smith SC, Washington R. When to start cholesterol-lowering therapy in patients with coronary heart disease. A statement for healthcare professionals from the American Heart Association Task Force on Risk Reduction. Circulation 1997; 95:1683-5. [PMID: 9118557 DOI: 10.1161/01.cir.95.6.1683] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
At present a large number of patients with atherosclerotic disease are not receiving aggressive cholesterol-lowering therapy. Consequently they are being deprived of a cost-effective, risk-reducing treatment. Every physician who treats patients with clinical atherosclerotic disease should become fully informed about the results of cholesterol-lowering trials in patients at high risk. All physicians who care for high-risk patients should take responsibility for cholesterol management, including primary care physicians and cardiovascular specialists. Highly effective and generally safe drugs for cholesterol lowering are available. The benefits of therapy for reducing recurrent CHD and prolonging life are considerable. There is no justification for unduly delaying institution of therapy for the majority of patients. The many advantages of nonpharmaceutical therapy call for its use in almost all patients, but drug treatment should not be postponed if the target for LDL cholesterol lowering (< or = 100 mg/dL) is unlikely to be achieved in the near term by a nonpharmaceutical approach alone. The view that patients with CHD or other forms of atherosclerotic disease do not receive substantial clinical benefits from aggressive cholesterol-lowering therapy is no longer warranted. Intensive cholesterol reduction, initiated immediately, has the potential to significantly reduce both morbidity and mortality. Cholesterol-lowering therapy thus should become a routine part of clinical management to reduce risk of future coronary events and to prolong life in patients with CHD or other forms of atherosclerotic disease.
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Smith SC, Blair SN, Criqui MH, Fletcher GF, Fuster V, Gersh BJ, Gotto AM, Gould KL, Greenland P, Grundy SM, Hill MN, Hlatky MA, Houston-Miller N, Krauss RM, LaRosa J, Ockene IS, Oparil S, Pearson TA, Rapaport E, Starke RD. Preventing heart attack and death in patients with coronary disease. Endorsed by the board of trustees of the American College of Cardiology. Cardiovasc Nurs 1996; 32:26-8. [PMID: 8846481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Davis BR, Cutler JA, Gordon DJ, Furberg CD, Wright JT, Cushman WC, Grimm RH, LaRosa J, Whelton PK, Perry HM, Alderman MH, Ford CE, Oparil S, Francis C, Proschan M, Pressel S, Black HR, Hawkins CM. Rationale and design for the Antihypertensive and Lipid Lowering Treatment to Prevent Heart Attack Trial (ALLHAT). ALLHAT Research Group. Am J Hypertens 1996; 9:342-60. [PMID: 8722437 DOI: 10.1016/0895-7061(96)00037-4] [Citation(s) in RCA: 352] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Are newer types of antihypertensive agents, which are currently more costly to purchase on average, as good or better than diuretics in reducing coronary heart disease incidence and progression? Will lowering LDL cholesterol in moderately hypercholesterolemic older individuals reduce the incidence of cardiovascular disease and total mortality? These important medical practice and public health questions are to be addressed by the Antihypertensive and Lipid Lowering Treatment to Prevent Heart Attack Trial (ALLHAT), a randomized, double-blind trial in 40,000 high-risk hypertensive patients. ALLHAT is designed to determine whether the combined incidence of fatal coronary heart disease (CHD) and nonfatal myocardial infarction differs between persons randomized to diuretic (chlorthalidone) treatment and each of three alternative treatments--a calcium antagonist (amlodipine), an angiotensin converting enzyme inhibitor (lisinopril), and an alpha-adrenergic blocker (doxazosin). ALLHAT also contains a randomized, open-label, lipid-lowering trial designed to determine whether lowering LDL cholesterol in 20,000 moderately hypercholesterolemic patients (a subset of the 40,000) with a 3-hydroxymethylglutaryl coenzyme A (HMG CoA) reductase inhibitor, pravastatin, will reduce all-cause mortality compared to a control group receiving "usual care." ALLHAT's main eligibility criteria are: 1) age 55 or older; 2) systolic or diastolic hypertension; and 3) one or more additional risk factors for heart attack (eg, evidence of atherosclerotic disease or type II diabetes). For the lipid-lowering trial, participants must have an LDL cholesterol of 120 to 189 mg/dL (100 to 129 mg/dL for those with known CHD) and a triglyceride level below 350 mg/dL. The mean duration of treatment and follow-up is planned to be 6 years. Further features of the rationale, design, objectives, treatment program, and study organization of ALLHAT are described in this article.
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Affiliation(s)
- B R Davis
- University of Texas School of Public Health, Houston, USA
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Strachnov V, Valkovic V, LaRosa J, Dekner R, Zeisler R. IAEA Programme of natural matrix reference materials for the determination of radionuclides. ACTA ACUST UNITED AC 1993. [DOI: 10.1007/bf00322582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Douglas PS, Clarkson TB, Flowers NC, Hajjar KA, Horton E, Klocke FJ, LaRosa J, Shively C. Exercise and atherosclerotic heart disease in women. Med Sci Sports Exerc 1992; 24:S266-76. [PMID: 1625552] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Abstract
Both alone and in combination with other lipid-lowering drugs, the bile acid sequestrants cholestyramine and colestipol, are excellent agents for lowering circulating low-density lipoprotein (LDL) cholesterol levels. They have been shown to lower the incidence of new coronary events and to retard the progression of coronary atherosclerosis. They also induce qualitative changes in lipoproteins whose significance requires further investigation but may be of significance in coronary disease prevention. While side effects may be bothersome for some patients, they can generally be managed effectively. In particular, modest lowering of dosage may preserve considerable LDL cholesterol lowering and virtually eliminate side effects. Sequestrants appear to be among the safest and most effective drugs in the cholesterol-lowering armamentarium.
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Affiliation(s)
- J LaRosa
- George Washington University Medical Center, Washington, D.C
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Affiliation(s)
- J LaRosa
- Department of Medicine, George Washington University, Washington, D.C
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Fulwood R, Kalsbeek W, Rifkind B, Russell-Briefel R, Muesing R, LaRosa J, Lippel K. Total serum cholesterol levels of adults 20-74 years of age. Vital Health Stat 11 1986:1-59. [PMID: 3750882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Davis CE, Gordon D, LaRosa J, Wood PD, Halperin M. Correlations of plasma high-density lipoprotein cholesterol levels with other plasma lipid and lipoprotein concentrations. Circulation 1980; 62:IV24-30. [PMID: 7188560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We investigated the association of plasma high-density lipoprotein (HDL) cholesterol levels with levels of cholesterol in other plasma lipoprotein fractions (low-density [LDL], very low density [VLDL] and their sum) and with total plasma cholesterol and triglyceride levels in 3493 males and 3318 females in the Lipid Research Clinics (LRC) Prevalence Study. Correlation coefficients were calculated for each stratum of age, sex and hormone use using a logarithmic transformation. The correlations of log HDL cholesterol with the other lipid and lipoprotein fractions generally depended strongly on age and sex but not on use of gonadal hormones. In the 20-70-year range, the age dependence of each correlation coefficient was well described by a linear regression model. The weakly positive association between HDL and total cholesterol levels in adults and the marked negative association of HDL cholesterol with triglyceride and VLDL cholesterol levels in almost all strata are in good general agreement with the results of earlier studies.
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Levy RI, Fredrickson DS, Stone NJ, Bilheimer DW, Brown WV, Glueck CJ, Gotto AM, Herbert PN, Kwiterovich PO, Langer T, LaRosa J, Lux SE, Rider AK, Shulman RS, Sloan HR. Cholestyramine in type II hyperlipoproteinemia. A double-blind trial. Ann Intern Med 1973; 79:51-8. [PMID: 4578640 DOI: 10.7326/0003-4819-79-1-51] [Citation(s) in RCA: 77] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Maillis MS, LaRosa J. Methadone-induced pulmonary edema. JAMA 1972; 219:1212. [PMID: 5066879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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