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Kim CM, Diez I, Bueichekú E, Ahn S, Montal V, Sepulcre J. Spatiotemporal Correlation between Amyloid and Tau Accumulations Underlies Cognitive Changes in Aging. J Neurosci 2024; 44:e0488232023. [PMID: 38123362 PMCID: PMC10869152 DOI: 10.1523/jneurosci.0488-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 10/03/2023] [Accepted: 11/09/2023] [Indexed: 12/23/2023] Open
Abstract
It is poorly known how Aβ and tau accumulations associate at the spatiotemporal level in the in vivo human brain to impact cognitive changes in older adults prior to AD symptoms onset. In this study, we used a graph theory-based spatiotemporal analysis to characterize the cortical patterns of Aβ and tau deposits and their relationship with cognitive changes in the Harvard Aging Brain Study (HABS) cohort. We found that the temporal accumulations of interlinked Aβ and tau pathology display distinctive spatiotemporal correlations associated with early cognitive decline. Notably, we observed that baseline Aβ deposits-Thal amyloid phase Ⅱ-related to future increase of tau deposits, Braak stages Ⅰ-Ⅳ, both displaying linkage to the decline in multi-domain cognitive scores. We also found unimodal tau-to-tau and cognitive impairment associations in broad areas of Braak stages Ⅰ-Ⅳ. The unimodal Aβ-to-Aβ progressions were not associated with cognitive changes. Our results revealed a multifaceted correlation of the spatiotemporal Aβ and tau associations with cognitive decline over time, in which tau-to-tau and tau-Aβ interactions, and not Aβ independently, might be critical contributors to clinical trajectories toward AD in older adults.
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Affiliation(s)
- Chan-Mi Kim
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts
| | - Ibai Diez
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown 02129, Massachusetts
| | - Elisenda Bueichekú
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts
| | - Sung Ahn
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts
| | - Victor Montal
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts
- Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autonoma de Barcelona, Barcelona 08041, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid 28029, Spain
| | - Jorge Sepulcre
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown 02129, Massachusetts
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2
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Park HS, Yokomizo S, Wang H, Manganiello S, Monaco H, McDonnell R, Kim HJ, Rho J, Ahn S, Jung H, Kang H, Bao K, Kashiwagi S, Choi HS. Bifunctional Tumor-Targeted Bioprobe for Phothotheranosis. Biomater Res 2024; 28:0002. [PMID: 38327616 PMCID: PMC10845606 DOI: 10.34133/bmr.0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/17/2023] [Indexed: 02/09/2024] Open
Abstract
Background: Near-infrared (NIR) phototheranostics provide promising noninvasive imaging and treatment for head and neck squamous cell carcinoma (HNSCC), capitalizing on its adjacency to skin or mucosal surfaces. Activated by laser irradiation, targeted NIR fluorophores can selectively eradicate cancer cells, harnessing the power of synergistic photodynamic therapy and photothermal therapy. However, there is a paucity of NIR bioprobes showing tumor-specific targeting and effective phototheranosis without hurting surrounding healthy tissues. Methods: We engineered a tumor-specific bifunctional NIR bioprobe designed to precisely target HNSCC and induce phototheranosis using bioconjugation of a cyclic arginine-glycine-aspartic acid (cRGD) motif and zwitterionic polymethine NIR fluorophore. The cytotoxic effects of cRGD-ZW800-PEG were measured by assessing heat and reactive oxygen species (ROS) generation upon an 808-nm laser irradiation. We then determined the in vivo efficacy of cRGD-ZW800-PEG in the FaDu xenograft mouse model of HNSCC, as well as its biodistribution and clearance, using a customized portable NIR imaging system. Results: Real-time NIR imaging revealed that intravenously administered cRGD-ZW800-PEG targeted tumors rapidly within 4 h postintravenous injection in tumor-bearing mice. Upon laser irradiation, cRGD-ZW800-PEG produced ROS and heat simultaneously and exhibited synergistic photothermal and photodynamic effects on the tumoral tissue without affecting the neighboring healthy tissues. Importantly, all unbound bioprobes were cleared through renal excretion. Conclusions: By harnessing phototheranosis in combination with tailored tumor selectivity, our targeted bioprobe ushers in a promising paradigm in cancer treatment. It promises safer and more efficacious therapeutic avenues against cancer, marking a substantial advancement in the field.
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Affiliation(s)
- Hae Sang Park
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine,
Hallym University, Chuncheon 24253, South Korea
| | - Shinya Yokomizo
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Haoran Wang
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Sophia Manganiello
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Hailey Monaco
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Rose McDonnell
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Hajin Joanne Kim
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Jiyun Rho
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Sung Ahn
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Harry Jung
- Institute of New Frontier Research Team, Hallym Clinical and Translation Science Institute,
Hallym University, Chuncheon 24252, South Korea
| | - Homan Kang
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Kai Bao
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Department of Radiology,
Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
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3
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Yamashita A, Park SH, Zeng L, Stiles WR, Ahn S, Bao K, Kim J, Kang H, Choi HS. H-Dot Mediated Nanotherapeutics Mitigate Systemic Toxicity of Platinum-Based Anticancer Drugs. Int J Mol Sci 2023; 24:15466. [PMID: 37895146 PMCID: PMC10607179 DOI: 10.3390/ijms242015466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/17/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
Platinum-based anticancer agents have revolutionized oncological treatments globally. However, their therapeutic efficacy is often accompanied by systemic toxicity. Carboplatin, recognized for its relatively lower toxicity profile than cisplatin, still presents off-target toxicities, including dose-dependent cardiotoxicity, neurotoxicity, and myelosuppression. In this study, we demonstrate a delivery strategy of carboplatin to mitigate its off-target toxicity by leveraging the potential of zwitterionic nanocarrier, H-dot. The designed carboplatin/H-dot complex (Car/H-dot) exhibits rapid drug release kinetics and notable accumulation in proximity to tumor sites, indicative of amplified tumor targeting precision. Intriguingly, the Car/H-dot shows remarkable efficacy in eliminating tumors across insulinoma animal models. Encouragingly, concerns linked to carboplatin-induced cardiotoxicity are effectively alleviated by adopting the Car/H-dot nanotherapeutic approach. This pioneering investigation not only underscores the viability of H-dot as an organic nanocarrier for platinum drugs but also emphasizes its pivotal role in ameliorating associated toxicities. Thus, this study heralds a promising advancement in refining the therapeutic landscape of platinum-based chemotherapy.
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Affiliation(s)
- Atsushi Yamashita
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
| | - Seung Hun Park
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
| | - Lingxue Zeng
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
- Department of Biomedical & Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Wesley R. Stiles
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
| | - Sung Ahn
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
| | - Kai Bao
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
| | - Jonghan Kim
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
- Department of Biomedical & Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Homan Kang
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; (A.Y.); (S.H.P.); (L.Z.); (W.R.S.); (S.A.); (K.B.); (J.K.); (H.K.)
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4
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Lee KM, Ahn S, Park E, Kim M. Low-Loss Pogo Pin Probe Card with a Coupling Isolation Structure up to 50 GHz. Sensors (Basel) 2023; 23:5420. [PMID: 37420587 DOI: 10.3390/s23125420] [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] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/16/2023] [Accepted: 06/05/2023] [Indexed: 07/09/2023]
Abstract
A design for a millimeter wave RF probe card that removes resonance is proposed. The designed probe card optimizes the position of the ground surface and the signal pogo pins to resolve the resonance and signal loss issues that occur when connecting a dielectric socket and a PCB. At millimeter wave frequencies, the height of the dielectric socket and pogo pin matches the length of half a wavelength, allowing the socket to act as a resonator. When the leakage signal from the PCB line is coupled to the 2.9 mm high socket with pogo pins, resonance at a frequency of 28 GHz is generated. The probe card uses the ground plane as a shielding structure to minimize this resonance and radiation loss. The importance of the signal pin location is verified via measurements in order to address the discontinuity caused by field polarity switching. A probe card fabricated using the proposed technique exhibits an insertion loss performance of -8 dB up to 50 GHz and eliminates resonance. A signal with an insertion loss of -3.1 dB can be transmitted to a system-on-chip in a practical chip test.
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Affiliation(s)
- K M Lee
- School of Electrical Engineering, Korea University, Seoul 02841, Republic of Korea
| | - S Ahn
- Samsung Electronics Co., Ltd., Suwon 16677, Republic of Korea
| | - E Park
- Samsung Electronics Co., Ltd., Suwon 16677, Republic of Korea
| | - M Kim
- School of Electrical Engineering, Korea University, Seoul 02841, Republic of Korea
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5
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Bishop J, Rogachev GV, Ahn S, Barbui M, Cha SM, Harris E, Hunt C, Kim CH, Kim D, Kim SH, Koshchiy E, Luo Z, Park C, Parker CE, Pollacco EC, Roeder BT, Roosa M, Saastamoinen A, Scriven DP. First Observation of the β3αp Decay of ^{13}O via β-Delayed Charged-Particle Spectroscopy. Phys Rev Lett 2023; 130:222501. [PMID: 37327448 DOI: 10.1103/physrevlett.130.222501] [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: 02/27/2023] [Revised: 04/25/2023] [Accepted: 05/11/2023] [Indexed: 06/18/2023]
Abstract
The β-delayed proton decay of ^{13}O has previously been studied, but the direct observation of β-delayed 3αp decay has not been reported. Rare 3αp events from the decay of excited states in ^{13}N^{⋆} provide a sensitive probe of cluster configurations in ^{13}N. To measure the low-energy products following β-delayed 3αp decay, the Texas Active Target (TexAT) time projection chamber was employed using the one-at-a-time β-delayed charged-particle spectroscopy technique at the Cyclotron Institute, Texas A&M University. A total of 1.9×10^{5} ^{13}O implantations were made inside the TexAT time projection chamber. A total of 149 3αp events were observed, yielding a β-delayed 3αp branching ratio of 0.078(6)%. Four previously unknown α-decaying excited states were observed in ^{13}N at 11.3, 12.4, 13.1, and 13.7 MeV decaying via the 3α+p channel.
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Affiliation(s)
- J Bishop
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - G V Rogachev
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
- Nuclear Solutions Institute, Texas A&M University, College Station, Texas 77843, USA
| | - S Ahn
- Center for Exotic Nuclear Studies, Institute for Basic Science, 34126 Daejeon, Republic of Korea
| | - M Barbui
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - S M Cha
- Center for Exotic Nuclear Studies, Institute for Basic Science, 34126 Daejeon, Republic of Korea
| | - E Harris
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - C Hunt
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - C H Kim
- Department of Physics, Sungkyunkwan University (SKKU), Seoul 16419, Republic of Korea
| | - D Kim
- Center for Exotic Nuclear Studies, Institute for Basic Science, 34126 Daejeon, Republic of Korea
| | - S H Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - E Koshchiy
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - Z Luo
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - C Park
- Center for Exotic Nuclear Studies, Institute for Basic Science, 34126 Daejeon, Republic of Korea
| | - C E Parker
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - E C Pollacco
- IRFU, CEA, Université Paris-Saclay, Gif-Sur-Yvette 91190, France
| | - B T Roeder
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - M Roosa
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - A Saastamoinen
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - D P Scriven
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
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6
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Browne J, Chipps KA, Schmidt K, Schatz H, Ahn S, Pain SD, Montes F, Ong WJ, Greife U, Allen J, Bardayan DW, Blackmon JC, Blankstein D, Cha S, Chae KY, Febbraro M, Hall MR, Jones KL, Kontos A, Meisel Z, O'Malley PD, Schmitt KT, Smith K, Smith MS, Thompson P, Toomey R, Vostinar M, Walter D. First Direct Measurement Constraining the ^{34}Ar(α,p)^{37}K Reaction Cross Section for Mixed Hydrogen and Helium Burning in Accreting Neutron Stars. Phys Rev Lett 2023; 130:212701. [PMID: 37295108 DOI: 10.1103/physrevlett.130.212701] [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: 07/21/2022] [Revised: 09/19/2022] [Accepted: 05/02/2023] [Indexed: 06/12/2023]
Abstract
The rate of the final step in the astrophysical αp process, the ^{34}Ar(α,p)^{37}K reaction, suffers from large uncertainties due to a lack of experimental data, despite having a considerable impact on the observable light curves of x-ray bursts and the composition of the ashes of hydrogen and helium burning on accreting neutron stars. We present the first direct measurement constraining the ^{34}Ar(α,p)^{37}K reaction cross section, using the Jet Experiments in Nuclear Structure and Astrophysics gas jet target. The combined cross section for the ^{34}Ar,Cl(α,p)^{37}K,Ar reaction is found to agree well with Hauser-Feshbach predictions. The ^{34}Ar(α,2p)^{36}Ar cross section, which can be exclusively attributed to the ^{34}Ar beam component, also agrees to within the typical uncertainties quoted for statistical models. This indicates the applicability of the statistical model for predicting astrophysical (α,p) reaction rates in this part of the αp process, in contrast to earlier findings from indirect reaction studies indicating orders-of-magnitude discrepancies. This removes a significant uncertainty in models of hydrogen and helium burning on accreting neutron stars.
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Affiliation(s)
- J Browne
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
| | - K A Chipps
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
| | - Konrad Schmidt
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
- Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - H Schatz
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
| | - S Ahn
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
| | - S D Pain
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
| | - F Montes
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
| | - W J Ong
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
| | - U Greife
- Physics Department, Colorado School of Mines, Golden, Colorado 80401
| | - J Allen
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556
| | - D W Bardayan
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556
| | - J C Blackmon
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803
| | - D Blankstein
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556
| | - S Cha
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K Y Chae
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - M Febbraro
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - M R Hall
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556
| | - K L Jones
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
| | - A Kontos
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
| | - Z Meisel
- Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
- Joint Institute for Nuclear Astrophysics (JINA-CEE), Michigan State University, East Lansing, Michigan 48824
| | - P D O'Malley
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556
| | - K T Schmitt
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - K Smith
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
| | - M S Smith
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - P Thompson
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
| | - R Toomey
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854
| | - M Vostinar
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854
| | - D Walter
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854
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7
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Hou SS, Yang J, Lee JH, Kwon Y, Calvo-Rodriguez M, Bao K, Ahn S, Kashiwagi S, Kumar ATN, Bacskai BJ, Choi HS. Near-infrared fluorescence lifetime imaging of amyloid-β aggregates and tau fibrils through the intact skull of mice. Nat Biomed Eng 2023; 7:270-280. [PMID: 36747008 PMCID: PMC10040441 DOI: 10.1038/s41551-023-01003-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 01/08/2023] [Indexed: 02/08/2023]
Abstract
Non-invasive methods for the in vivo detection of hallmarks of Alzheimer's disease can facilitate the study of the progression of the disease in mouse models and may enable its earlier diagnosis in humans. Here we show that the zwitterionic heptamethine fluorophore ZW800-1C, which has peak excitation and emission wavelengths in the near-infrared optical window, binds in vivo and at high contrast to amyloid-β deposits and to neurofibrillary tangles, and allows for the microscopic imaging of amyloid-β and tau aggregates through the intact skull of mice. In transgenic mouse models of Alzheimer's disease, we compare the performance of ZW800-1C with that of the two spectrally similar heptamethine fluorophores ZW800-1A and indocyanine green, and show that ZW800-1C undergoes a longer fluorescence-lifetime shift when bound to amyloid-β and tau aggregates than when circulating in blood vessels. ZW800-1C may prove advantageous for tracking the proteinic aggregates in rodent models of amyloid-β and tau pathologies.
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Affiliation(s)
- Steven S Hou
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Joyce Yang
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jeong Heon Lee
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Yeseo Kwon
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Maria Calvo-Rodriguez
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Kai Bao
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sung Ahn
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Anand T N Kumar
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Brian J Bacskai
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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8
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Laguna A, Harwell A, Angenent-Mari V, Buchanan S, Persad-Paisley E, Ahn S. Abstract No. 285 Assessment of Readability and Quality of Spanish-Language Online Uterine Artery Embolization Patient Education Resources. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.352] [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: 02/27/2023] Open
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9
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Kasthuri V, Laguna A, Kim N, Yoon J, Ahn S. Abstract No. 289 Modern Search Analytics: What Are Patients Asking ecan Uterine Artery Embolization? J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.356] [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: 02/27/2023] Open
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10
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Kasthuri V, Kim N, Laguna A, Yoon J, Ahn S. Abstract No. 604 Modern Search Analytics: What Are Patients Asking about Prostate Artery Embolization? J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.462] [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: 02/27/2023] Open
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Kasthuri V, Shamshad A, Davis M, Yoon J, Kumar S, Ahn S. Abstract No. 605 Modern Search Analytics: What Are Patients Asking about Varicocele Embolization? J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.463] [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: 02/26/2023] Open
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12
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Kasthuri V, Gillette J, Zhang H, Kumar S, Yoon J, Ahn S. Abstract No. 190 Modern Search Analytics: What Are Patients Asking about Varicose Vein Ablation? J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.247] [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: 02/27/2023] Open
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13
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Kim J, Park JH, Moon S, Kim S, Song J, Ahn S, Cho H. 46 The Effect of Mechanical Chest Compression Device on Survival After Out-of-Hospital Cardiac Arrest According to Patient Transport Interval: A Multi-center Observational Study. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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14
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Song J, Kim SJ, Lee S, Lim H, Ahn S, Kim J, Park J, Cho HJ, Moon S, Jeon ET. 44 Prediction of Mortality Among Patients With Isolated Traumatic Brain Injury Using Machine Learning Models in Asian Countries: An International Multicenter Cohort Study. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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15
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Wang H, Kang H, Dinh J, Yokomizo S, Stiles WR, Tully M, Cardenas K, Srinivas S, Ingerick J, Ahn S, Bao K, Choi HS. P800SO3-PEG: a renal clearable bone-targeted fluorophore for theranostic imaging. Biomater Res 2022; 26:51. [PMID: 36183117 PMCID: PMC9526902 DOI: 10.1186/s40824-022-00294-2] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/31/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Due to the deep tissue penetration and reduced scattering, NIR-II fluorescence imaging is advantageous over conventional visible and NIR-I fluorescence imaging for the detection of bone growth, metabolism, metastasis, and other bone-related diseases. METHODS Bone-targeted heptamethine cyanine fluorophores were synthesized by substituting the meso-carbon with a sulfur atom, resulting in a bathochromic shift and increased fluorescence intensity. The physicochemical, optical, and thermal stability of newly synthesized bone-targeted NIR fluorophores was performed in aqueous solvents. Calcium binding, bone-specific targeting, biodistribution, pharmacokinetics, and 2D and 3D NIR imaging were performed in animal models. RESULTS The newly synthesized S-substituted heptamethine fluorophores demonstrated a high affinity for hydroxyapatite and calcium phosphate, which improved bone-specific targeting with signal-background ratios > 3.5. Particularly, P800SO3-PEG showed minimum nonspecific uptake, and most unbound molecules were excreted into the urinary bladder. Histological analyses demonstrated that P800SO3-PEG remained stable in the bone for over two weeks and was incorporated into bone matrices. Interestingly, the flexible thiol ethylene glycol linker on P800SO3-PEG induced a promising photothermal effect upon NIR laser irradiation, demonstrating potential theranostic imaging. CONCLUSIONS P800SO3-PEG shows a high affinity for bone tissues, deeper tissue imaging capabilities, minimum nonspecific uptake in the major organs, and photothermal effect upon laser irradiation, making it optimal for bone-targeted theranostic imaging.
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Affiliation(s)
- Haoran Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China.,Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Homan Kang
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jason Dinh
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shinya Yokomizo
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Wesley R Stiles
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Molly Tully
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kevin Cardenas
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Surbhi Srinivas
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jason Ingerick
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sung Ahn
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kai Bao
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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16
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Jin BY, Song J, Kim J, Park JH, Kim S, Cho H, Moon S, Kim DH, Ahn S. 127 Effect of Metformin on Survival Outcomes in In-Hospital Cardiac Arrest Patients With Diabetes. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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17
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Kim Y, Ahn S, Jeun S, Lee Y, Park J. P11.40.A Clinicopathological Analysis of High risk Pituitary Adenomas According to the 2017 WHO Classification System for Pituitary Neuroendocrine Tumors (PitNET). Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The 2017 WHO classification of pituitary tumors has revealed “high-risk pituitary neuroendocrine tumors (PitNETs)”, which were known to have high probability for recurrence. Tumor invasion was not included in the pathological grading and classification due to frequent lack of proper pathologic assessment. However, it mentioned tumor invasion as an important prognostic feature in identifying clinically aggressive adenomas.
Material and Methods
We performed a retrospective review of a prospectively collected dataset from January 2018 to March 2021. Patient’s clinical presentation, radiologic features, pathologic findings, and clinical outcome were gathered. Inter-group analysis was performed for high-risk versus low-risk tumors, and invasive versus non-invasive tumors.
Results
Among total 116 cases of PitNETs, high-risk and low-risk tumors were identified in 32 and 84 cases, respectively. The inter-group comparison showed no differences in clinical presentation, radiologic features, pathologic findings, and clinical outcomes.Invasive and non-invasive tumors were identified in 49 and 67 cases, respectively. The invasive group tumors were more symptomatic ( 29 (59.2%) vs. 30 (44.8%), p= 0.031), with larger tumor size over 40mm (9 (18.4%) vs. 1 (1.5%), p = 0.002), and more likely to have Knosp grade higher than 3. The gross-total resection was less achievable (7 (14.3%) vs 26 (38.8%), p = 0.007) However, Ki-67 index showed no significantly difference between the invasive group and non-invasive group (2.0 vs 2.0 , p= 0.556).
Conclusion
According to our study results, the pathologic diagnosis of a high-risk tumor does not necessarily seem to properly reflect the clinical aggressiveness. Tumor invasion, however, seems to better represent the aggressive tumors that requires proper and active treatment.
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Affiliation(s)
- Y Kim
- Seoul St.Mary's Hospital , Seoul , Korea, Republic of
| | - S Ahn
- Seoul St.Mary's Hospital , Seoul , Korea, Republic of
| | - S Jeun
- Seoul St.Mary's Hospital , Seoul , Korea, Republic of
| | - Y Lee
- Seoul St.Mary's Hospital , Seoul , Korea, Republic of
| | - J Park
- Seoul St.Mary's Hospital , Seoul , Korea, Republic of
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18
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Oulee A, Ahn S, Shahsavari S, Martin A, Wu J. LB897 The risk of COVID-19 infection in patients with alopecia areata. J Invest Dermatol 2022. [PMCID: PMC9296966 DOI: 10.1016/j.jid.2022.05.915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Savarimuthu S, Midgett D, Thorn S, Ahn S, Avendano R, Melvinsdottir I, Duncan J, Papademetris X, Sinusas A. 445 Three-dimensional High Resolution Lagrangian Strain Analysis In The Right Ventricle Using Cinect In A Porcine Model. J Cardiovasc Comput Tomogr 2022. [DOI: 10.1016/j.jcct.2022.06.050] [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: 10/17/2022]
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20
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Yücel G, Ahn S, Ecemiş T, Keskin M, Arslanca T, Atik A. P-655 Insulin like growth factor-1 levels in follicular fluids of patients with poor ovarian response undergoing in vitro fertilization. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
Does follicular fluid insulin like growth factor level (IGF-1) in poor responders (PR) differ from normoresponders? Is there a correlation between IGF-1 and IVF outcomes?
Summary answer
Follicular IGF-1 levels are decreased in poor-responders A positive correlation exists between IGF-1 and number of metaphase II (MII) oocytes, fertilized oocytes and transferred embryos
What is known already
IGFs are mainly synthesized in liver with growth hormone stimulation. IGF-1 component in follicular fluid has been reported to play a crucial role in follicular and embryonic development. In addition to previously reported positive correlation between follicular IGF-I levels and number of high quality embryos, a significant decrease in IGF-1 levels with PR and advanced maternal age has also been reported. GH supplementation in poor responders undergoing IVF has been suggested to improve IVF outcomes. A recent Cochrane analysis reported that GH slightly increases the number of oocytes retrieved and there is an uncertain effect on live birth rates (LBR).
Study design, size, duration
Study was designed prospectively. A power analysis, of 91% determined a need for 186 patients. Therefore 186 women undergoing IVF between October 2019 and December 2020 were included. 72 (%38,7) patients were assigned to PRs group according to Bologna criteria (BC) and 114 patients (%61.3) were recruited as controls. Antagonist protocol was used for controlled ovarian hyperstimulation. hCG was administered for ovulation trigger.
Participants/materials, setting, methods
Following the ovarian hyperstimulation follicular fluid samples were collected during oocyte retrieval. When the total desired number of patients was reached, frozen and preserved follicle fluids were thawed at room temperature. IGF-1 levels in samples were measured using hIGF-1 ELISA kit (BT®, China). Follicular IGF-1 levels in PRs were compared to normoresponders and correlation between IGF-1 levels and AMH levels, number of retrieved oocytes, MII and fertilized oocytes, transferred embriyos and LBR were evaluated.
Main results and the role of chance
Mean IGF-1 levels of normoresponders and Bologna subgroups (B1, B2, B3, B4) were 13.79±14.50 ng/ml vs 5.75±1.86, 5.47±2.83, 5.96±2.16 and 5.03±1.85 ng/ml respectively (p < 0.001). There was no statistically significant difference in clinical pregnancy (CP) per transfer and LBR per transfer between normoresponders and PRs (CPR/ET: 55.1% vs 43.7%, p:0.375; 26.5% vs 12.5% , p: 0.257). In the ROC analysis for the prediction of collection of fewer than 4 oocytes at retrieval (according to BC definition of PR), statistically determined IGF-1 value was 7.02 with a sensitivity of 83% and a specificity of 38.6%. Patients with an IGF-1 value below 7.02 had a higher risk of having an oocyte number less than 4According to the results of Spearman's correlation analysis, IGF-1 levels were negatively correlated with age and number of previous failed cycles (r:-0.250, p:0,001; r:-0.153, p:0,039 respectively). IGF-1 levels were positively correlated with AMH levels, oocyte, MII oocyte, fertilized oocyte numbers and number of transferred embriyos (r: 0.221, p: 0.007; r: 0.283, p < 0.001; r: 0.293, p < 0.001; r: 0.282, p < 0.001; r: 0.194, p: 0.008 respectively). There was a positive correlation between IGF-1 levels and cycle cancellation rates (r: 0.637, p < 0,001). There was no correlation between IGF-1 levels and LBR (p:0.118).
Limitations, reasons for caution
Small number of patients was the main limitation of study.Results were not interpreted as LBR in all cases, as 21% (n:24) of the cases had still ongoing pregnancies
Wider implications of the findings
Detecting lower follicular levels of IGF-1 which plays a crucial role in GH activity may highligt the effect of GH supplementation in poor responders undergoing IVF in terms of improved outcomes. However, there is need for more solid data to employ GH in IVF treatment modalities of poor-responders.
Trial registration number
not applicable
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Affiliation(s)
- G.S Yücel
- ufuk university faculty of medicine, gynecology and obstetrics , ankara, Turkey
| | - S Ahn
- ufuk university faculty of medicine, gynecology and obstetrics , ankara, Turkey
| | - T Ecemiş
- gen art ıvf center, obstetrics and gynecology , ankara, Turkey
| | - M Keskin
- ufuk university faculty of medicine, gynecology and obstetrics , ankara, Turkey
| | - T Arslanca
- ufuk university faculty of medicine, gynecology and obstetrics , ankara, Turkey
| | - A Atik
- gen art ıvf center, embriyology , ankara, Turkey
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21
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Hsieh C, Ward R, Oueidat K, Baird G, Ahn S. Abstract No. 262 Recurrence of breast cancer post-cryoablation in candidates previously excluded from clinical trials. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.343] [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: 10/18/2022] Open
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22
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Park J, Wu H, Kim J, Lee J, Ahn S, Chung E, Eom K, Jeong W, Kwon T, Kim S, Wee C. PD-0823 Adjuvant Radiotherapy for Node-negative Parotid Gland Cancer Patients Undergoing Curative Resection. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02964-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Bishop J, Parker CE, Rogachev GV, Ahn S, Koshchiy E, Brandenburg K, Brune CR, Charity RJ, Derkin J, Dronchi N, Hamad G, Jones-Alberty Y, Kokalova T, Massey TN, Meisel Z, Ohstrom EV, Paneru SN, Pollacco EC, Saxena M, Singh N, Smith R, Sobotka LG, Soltesz D, Subedi SK, Voinov AV, Warren J, Wheldon C. Neutron-upscattering enhancement of the triple-alpha process. Nat Commun 2022; 13:2151. [PMID: 35444209 PMCID: PMC9021293 DOI: 10.1038/s41467-022-29848-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 03/31/2022] [Indexed: 11/30/2022] Open
Abstract
The neutron inelastic scattering of carbon-12, populating the Hoyle state, is a reaction of interest for the triple-alpha process. The inverse process (neutron upscattering) can enhance the Hoyle state’s decay rate to the bound states of 12C, effectively increasing the overall triple-alpha reaction rate. The cross section of this reaction is impossible to measure experimentally but has been determined here at astrophysically-relevant energies using detailed balance. Using a highly-collimated monoenergetic beam, here we measure neutrons incident on the Texas Active Target Time Projection Chamber (TexAT TPC) filled with CO2 gas, we measure the 3α-particles (arising from the decay of the Hoyle state following inelastic scattering) and a cross section is extracted. Here we show the neutron-upscattering enhancement is observed to be much smaller than previously expected. The importance of the neutron-upscattering enhancement may therefore not be significant aside from in very particular astrophysical sites (e.g. neutron star mergers). The triple-alpha process plays a role in nucleosynthesis, in the formation of 12C. Here, the authors discuss the rate and role of the neutron upscattering phenomenon on the triple-alpha process in a multi-step process.
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Affiliation(s)
- J Bishop
- Cyclotron Institute, Texas A&M University, College Station, TX, 77843, USA.
| | - C E Parker
- Cyclotron Institute, Texas A&M University, College Station, TX, 77843, USA
| | - G V Rogachev
- Cyclotron Institute, Texas A&M University, College Station, TX, 77843, USA.,Department of Physics & Astronomy, Texas A&M University, College Station, TX, 77843, USA.,Nuclear Solutions Institute, Texas A&M University, College Station, TX, 77843, USA
| | - S Ahn
- Cyclotron Institute, Texas A&M University, College Station, TX, 77843, USA.,Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon, 34126, Republic of Korea
| | - E Koshchiy
- Cyclotron Institute, Texas A&M University, College Station, TX, 77843, USA
| | - K Brandenburg
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - C R Brune
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - R J Charity
- Department of Chemistry, Washington University, St. Louis, MO, 63130, USA
| | - J Derkin
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - N Dronchi
- Department of Physics, Washington University, St. Louis, MO, 63130, USA
| | - G Hamad
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - Y Jones-Alberty
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - Tz Kokalova
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | - T N Massey
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - Z Meisel
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - E V Ohstrom
- Department of Physics, Washington University, St. Louis, MO, 63130, USA
| | - S N Paneru
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - E C Pollacco
- IRFU, CEA, Université Paris-Saclay, Gif-Sur-Yvette, France
| | - M Saxena
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - N Singh
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - R Smith
- Department of Engineering and Mathematics, Sheffield Hallam University, Sheffield, S1 1WB, UK
| | - L G Sobotka
- Department of Chemistry, Washington University, St. Louis, MO, 63130, USA.,Department of Physics, Washington University, St. Louis, MO, 63130, USA.,McDonnell Center for the Space Sciences, Washington University, St. Louis, MO, 63130, USA
| | - D Soltesz
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - S K Subedi
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - A V Voinov
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - J Warren
- Edwards Accelerator Laboratory, Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA
| | - C Wheldon
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
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Ahn S, Moon DG, Cho S, Lee H, Han DE, Lee DH. Postoperative Progress of Modified Grid Incision and Sealing with Collagen Fleece for Treatment of Peyronie's Disease. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.079] [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: 10/18/2022]
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25
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Ha YJ, Ji E, Lee JH, Kim JH, Park EH, Chung SW, Chang SH, Yoo JJ, Kang EH, Ahn S, Song YW, Lee YJ. High Estimated 24-Hour Urinary Sodium Excretion Is Related to Symptomatic Knee Osteoarthritis: A Nationwide Cross-Sectional Population-Based Study. J Nutr Health Aging 2022; 26:581-589. [PMID: 35718867 DOI: 10.1007/s12603-022-1804-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES High salt intake results in various harmful effects on human health including hypertension, cardiovascular disease, and reduced bone density. Despite this, there are very few studies in the literature that have investigated the association between sodium intake and osteoarthritis (OA). Therefore, we aimed to explore these associations in a Korean population. METHODS This study used cross-sectional data from adult subjects aged 50-75 years from two consecutive periods of the Korean National Health and Nutrition Examination Survey V-VII (2010-2011 and 2014-2016). The estimated 24-hour urinary sodium excretion (24HUNa) was used as a surrogate marker of salt intake. In the 2010-2011 dataset, knee OA (KOA) was defined as the presence of the radiographic features of OA and knee pain. The association between KOA and salt intake was analysed using univariable and multivariable logistic regression methods. For the sensitivity analysis, the same procedures were conducted on subjects with self-reported OA (SR-OA) with knee pain in the 2010-2011 dataset and any site SR-OA in the 2014-2016 dataset. RESULTS Subjects with KOA had significantly lower energy intake, but higher 24HUNa than those without KOA. The restricted cubic spline plots demonstrated a J-shaped distribution between 24HUNa and prevalent KOA. When 24HUNa was stratified into five groups (<2, 2-3, 3-4, 4-5 and ≥5 g/day), subjects with high sodium intake (≥5 g/day) had a higher risk of KOA (odds ratio [OR] = 1.64, 95% confidence interval [CI] 1.03-2.62) compared to the reference group (3-4 g/day) after adjusting for covariates. The sensitivity analysis based on SR-OA with knee pain showed that high sodium intake was also significantly associated with increased prevalence of OA (OR = 1.84, 95% CI 1.10-3.10) compared with the reference group. Regarding SR-OA at any site in the 2014-2016 dataset, estimated 24HUNa showed a significantly positive association with the presence of SR-OA after adjusting for potential confounders. CONCLUSIONS This nationwide Korean representative study showed a significant association between symptomatic KOA and high sodium intake (≥5 g/day). Avoidance of a diet high in salt might be beneficial as a non-pharmacologic therapy for OA.
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Affiliation(s)
- Y-J Ha
- Yun Jong Lee, M.D., Ph.D., Department of Internal Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro, 173 Beongil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, Korea, Tel.: +82-31-787-7049, Fax.: +82-31-787-4051, E-mail:
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Kim H, Heo YJ, Cho YA, Kang SY, Ahn S, Kim KM. Tumor immune microenvironment is influenced by frameshift mutations and tumor mutational burden in gastric cancer. Clin Transl Oncol 2021; 24:556-567. [PMID: 34767183 DOI: 10.1007/s12094-021-02714-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/23/2021] [Indexed: 02/05/2023]
Abstract
PURPOSE Immunoscore can effectively predict prognosis in patients with colon cancer; however, its clinical application is limited. We modified the Immunoscore and created a tumor immune microenvironment (TIM) classification system for gastric carcinoma. Unlike previous studies that used small sample sizes or focused on particular immune-cell subtypes, our simplified system enables pathologists to classify gastric carcinomas intuitively using H&E-stained sections. METHODS Samples from 326 patients with advanced gastric carcinoma were reviewed and analyzed by pathologists using simple determination and digital image analysis. Comprehensive results of cancer-panel sequencing, Epstein-Barr‒virus (EBV) status, and PD-L1, HER2, ATM, PTEN, MET, FGFR2, and EGFR immunohistochemistry were evaluated with respect to the TIM class. RESULTS The TIM was classified as "hot" (n = 22), "immunosuppressed" (n = 178), "excluded" (n = 83), or "cold" (n = 43). TIM category was significantly associated with numbers of frameshift mutations (P < 0.001) and high tumor mutational burden (P < 0.004), and predicted overall survival. It was also significantly associated with age, histological type, degree of fibrosis, PD-L1 expression, loss of ATM and PTEN expression (P < 0.001), sex, EBV positivity, and HER2 overexpression (P < 0.04). "Hot" tumors were frequent in PD-L1 expressing and EBV-positive samples, and in those with ATM and PTEN loss. "Excluded" tumors were frequent in HER2-positive cases, whereas "cold" tumors were more frequent in younger patients with poorly cohesive histology and high fibrosis levels. CONCLUSIONS TIM classification system for gastric carcinoma has prognostic significance and results in classes that are associated with molecular characteristics.
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Affiliation(s)
- H Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y J Heo
- The Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y A Cho
- Department of Pathology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea
| | - S Y Kang
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S Ahn
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - K -M Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. .,The Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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Lee E, Chung H, Lee Y, Lee EJ, Park Y, Kim Y, Park J, Ahn S, Kim J, Ahn K, Park K, Son W, Yeom D, Jung J, Won J, Oh S. 544P A novel HER2/4-1BB bispecific antibody, YH32367 (ABL105) exerts significant anti-tumor effects through tumor-directed T cell activation. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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KIM D, Wu H, Kim J, Ahn S, Chung E, Eom K, Jung Y, Jeong W, Kwon T, Kim S, Wee C. PO-0986 Radiotherapy versus Surgery in Early Stage HPV-positive Oropharyngeal Cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07437-5] [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: 10/20/2022]
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An SJ, Lee EJ, Jeong SH, Hong YP, Ahn S, Yang YJ. Perinatal exposure to di-(2-ethylhexyl) phthalate induces hepatic lipid accumulation mediated by diacylglycerol acyltransferase 1. Hum Exp Toxicol 2021; 40:1698-1709. [PMID: 33832334 DOI: 10.1177/09603271211003314] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Di-(2-ethylhexyl) phthalate (DEHP) is a commonly used plasticizer in consumer products and medical devices. It is also suspected to exacerbate the development of fatty liver. However, the mechanisms underlying excessive lipid synthesis and its deposition in the liver are yet to be identified. This study was aimed to evaluate the molecular mechanisms of hepatic lipid accumulation in adult male offspring after perinatal exposure to DEHP. METHOD Corn oil and DEHP (0.75 mg/kg/day) were administered once per day to dam from gestation day 6 to postnatal day (PND) 21 by oral gavage. After the weaning period, DEHP treated male pups were categorized into early life stage- and lifelong period group. Male rats both control and early life stage group administered corn oil, and lifelong period group administered DEHP from PND 22 to 70. Histological examination and triglyceride (TG) levels in the liver were analyzed. Expressions of transcription factors associated with lipid accumulation in the liver were analyzed. RESULTS Both early life stage- and lifelong period group, hepatic TG levels, and mRNA and protein expression of diacylglycerol acyltransferase 1 (DGAT1) were significantly higher than control (TG: all p < 0.05, mRNA & protein: p < 0.05 and p < 0.001, respectively). The average body weight from PND 35 to 63, and mRNA and protein expression of sterol regulatory element binding protein 1c in lifelong period group were significantly lower than control (all p < 0.05); however, alanine transaminase were significantly higher than control (p < 0.01). CONCLUSION Perinatal exposure to DEHP may induce the hepatic lipid accumulation through up-regulation of DGAT1 expression.
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Affiliation(s)
- S J An
- Department of Neurology, Catholic Kwandong University International St Mary's Hospital, Incheon, Republic of Korea.,These authors are equally contributed to this work
| | - E J Lee
- Institute for Catholic Integrative Medicine, Incheon St Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Republic of Korea.,These authors are equally contributed to this work
| | - S-H Jeong
- Division of Gastroenterology, Department of Internal Medicine, Catholic Kwandong University International St Mary's Hospital, Incheon, Republic of Korea
| | - Y-P Hong
- Department of Preventive Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - S Ahn
- Department of Pathology, Catholic Kwandong University International St Mary's Hospital, Incheon, Republic of Korea
| | - Y-J Yang
- Institute of Biomedical Science, Catholic Kwandong University International St Mary's Hospital, Incheon, Republic of Korea
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Ong WJ, Brown EF, Browne J, Ahn S, Childers K, Crider BP, Dombos AC, Gupta SS, Hitt GW, Langer C, Lewis R, Liddick SN, Lyons S, Meisel Z, Möller P, Montes F, Naqvi F, Pereira J, Prokop C, Richman D, Schatz H, Schmidt K, Spyrou A. β Decay of ^{61}V and its Role in Cooling Accreted Neutron Star Crusts. Phys Rev Lett 2020; 125:262701. [PMID: 33449748 DOI: 10.1103/physrevlett.125.262701] [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: 11/12/2019] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
The interpretation of observations of cooling neutron star crusts in quasipersistent x-ray transients is affected by predictions of the strength of neutrino cooling via crust Urca processes. The strength of crust Urca neutrino cooling depends sensitively on the electron-capture and β-decay ground-state-to-ground-state transition strengths of neutron-rich rare isotopes. Nuclei with a mass number of A=61 are predicted to be among the most abundant in accreted crusts, and the last remaining experimentally undetermined ground-state-to-ground-state transition strength was the β decay of ^{61}V. This Letter reports the first experimental determination of this transition strength, a ground-state branching of 8.1_{-3.1}^{+4.0}%, corresponding to a log ft value of 5.5_{-0.2}^{+0.2}. This result was achieved through the measurement of the β-delayed γ rays using the total absorption spectrometer SuN and the measurement of the β-delayed neutron branch using the neutron long counter system NERO at the National Superconducting Cyclotron Laboratory at Michigan State University. This method helps to mitigate the impact of the pandemonium effect in extremely neutron-rich nuclei on experimental results. The result implies that A=61 nuclei do not provide the strongest cooling in accreted neutron star crusts as expected by some predictions, but that their cooling is still larger compared to most other mass numbers. Only nuclei with mass numbers 31, 33, and 55 are predicted to be cooling more strongly. However, the theoretical predictions for the transition strengths of these nuclei are not consistently accurate enough to draw conclusions on crust cooling. With the experimental approach developed in this work, all relevant transitions are within reach to be studied in the future.
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Affiliation(s)
- W-J Ong
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - E F Brown
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Computational Mathematics, Science, and Engineering, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Browne
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
| | - S Ahn
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Cylotron Institute, Texas A&M University, College Station, Texas 77843, USA
| | - K Childers
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - B P Crider
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A C Dombos
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - S S Gupta
- Indian Institute of Technology Ropar, Nangal Road, Rupnagar (Ropar), Punjab 140 001, India
| | - G W Hitt
- Department of Physics and Engineering Science, Coastal Carolina University, Conway, South Carolina 29528, USA
| | - C Langer
- Institute for Applied Physics, Goethe-University Frankfurt a. M., Frankfurt am Main 60438, Germany
| | - R Lewis
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - S N Liddick
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Lyons
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - Z Meisel
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Ohio Univeristy, Athens, Ohio 45701, USA
| | - P Möller
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - F Montes
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - F Naqvi
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics & Astrophysics, University of Delhi, Delhi 110007, India
| | - J Pereira
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Prokop
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Richman
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - H Schatz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - K Schmidt
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Spyrou
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
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Park S, Choi J, Ahn S, Park H. Dosimetric Analysis of the Effects of a Temporary Tissue Expander on the Radiotherapy Technique. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.736] [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: 10/23/2022]
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Arslan M, Li H, Lee H, Mikula M, Ahn S. Calretinin-Positive Mucosal Innervation (C-mi) as a Potential Biomarker to Predict Fibrosis in Crohn’s Disease (CD): A Pilot Study. Am J Clin Pathol 2020. [DOI: 10.1093/ajcp/aqaa161.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction/Objective
There is no reliable biomarker to predict the degree of fibrosis in CD. Quantification of C-mi has been used as a surrogate for enteric neural structures in Hirschsprung disease. The quantity of C-mi at the proximal margin may correlate with the degree of fibrosis in resected CD.
Methods
Ileocolonic resection cases for 20 CD and 3 trauma (control) were retrieved. Cases with severe mucosal inflammation at the margins were excluded. The proximal and distal margin sections were subjected to calretinin immunohistochemistry. Random mucosal images were captured from scanned slides (x200, JPEG), submucosa was edited out, and C-mi was calculated by image processing and analysis. rC-mi was defined as the mean C-mi of proximal margin normalized by that of distal margin. Cases with rC-mi less than the mean rC-mi + 2 SD of the controls were excluded. The maximum thicknesses of submucosa and muscularis propria were measured at the most stenotic site, microscopically. Pearson’s correlation test and Student’s t-test were performed to correlate the parameters and compare the means, respectively.
Results
A total of 216 images were captured (mean 9.3 images per case; range 7 to 10). The mean rC-mi of CD (1.26) was greater than the controls (mean 0.43) (p<0.05). The mean rC-mi + 2 SD of the control group was 0.91, thus 2 CD cases were excluded from final analysis. The rC-mi of CD showed an inverse relationship with maximum submucosal thickness (mean 3.4 mm, range 0.2 to 5.9) at the site of stenosis (r=-0.47; p<0.05), but not with muscularis propria.
Conclusion
The rC-mi of CD was inversely correlated with submucosal fibrosis. Altered stromal integrity, impaired intercellular signaling, progressive reduction and loss of telocytes induced by submucosal fibrosis may reduce the regenerative capacity of enteric neural structures in CD. Therefore, a decreasing trend in rC-mi may predict fibrosis progression in CD.
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Affiliation(s)
- M Arslan
- Pathology and Laboratory medicine, Albany Medical Center, Albany, New York, UNITED STATES
| | - H Li
- Pathology and Laboratory medicine, Albany Medical Center, Albany, New York, UNITED STATES
| | - H Lee
- Pathology and Laboratory medicine, Albany Medical Center, Albany, New York, UNITED STATES
| | - M Mikula
- Albany Medical College, Albany, New York, UNITED STATES
| | - S Ahn
- GE Global Research, Niskayuna, New York, UNITED STATES
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Lee S, Ahn S, Choi J, Ko BR, Semertzidis YK. Axion Dark Matter Search around 6.7 μeV. Phys Rev Lett 2020; 124:101802. [PMID: 32216429 DOI: 10.1103/physrevlett.124.101802] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 02/18/2020] [Indexed: 06/10/2023]
Abstract
An axion dark matter search with the CAPP-8TB haloscope is reported. Our results are sensitive to axion-photon coupling g_{aγγ} down to the QCD axion band over the axion mass range between 6.62 and 6.82 μeV at a 90% confidence level, which is the most sensitive result in the mass range to date.
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Affiliation(s)
- S Lee
- Center for Axion and Precision Physics Research, Institute for Basic Science, Daejeon 34051, Republic of Korea
| | - S Ahn
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - J Choi
- Center for Axion and Precision Physics Research, Institute for Basic Science, Daejeon 34051, Republic of Korea
| | - B R Ko
- Center for Axion and Precision Physics Research, Institute for Basic Science, Daejeon 34051, Republic of Korea
| | - Y K Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science, Daejeon 34051, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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Mitsuyama R, Reinert S, Ahn S. 3:18 PM Abstract No. 366 Imaging features and clinical factors as predictors of endovascular therapy and outcomes in rectus sheath hematoma. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Son J, Carr C, Chambers LM, Michener C, Meng Y, Yen T, Beavis A, Stone R, Wethington S, Burkett W, Richardson D, Staley AS, Ahn S, Gehrig P, Torres D, Dowdy S, Sullivan M, Modesitt S, Watson C, Secord A, Veade A, Havrilesky L, Loreen A, Griffin K, Jackson A, Fader AN, Ricci S. Adjuvant treatment in high intermediate risk early stage endometrial cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2019.11.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Sinha I, Aluthge D, Ahn S. 3:45 PM Abstract No. 132 Machine learning may assist in the selection of candidates for outpatient liver ablation. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Sinha I, Aluthge D, Ahn S. 3:27 PM Abstract No. 55 Predicting mortality following transjugular intrahepatic portosystemic shunt: a machine learning approach. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Rauschert L, Purkayastha S, Zhao Y, Xi I, Wang R, Khurana S, McGirr A, Soulen M, Zhang Z, Silva A, Stavropoulos S, Ahn S, Bai H. 3:18 PM Abstract No. 292 Differentiation of malignant and benign renal tumors using magnetic resonance–based radiomics. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Park L, Dibble E, Baird G, George P, Ahn S. 4:12 PM Abstract No. 216 What medical students know (or think they know) about interventional radiology. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Park L, Dibble E, Baird G, George P, Ahn S. 3:09 PM Abstract No. 209 Diversity in interventional radiology: motivations and deterrents to interventional radiology among female and underrepresented minority medical students. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Park L, Dibble E, Baird G, George P, Ahn S. 4:21 PM Abstract No. 217 What medical students think about interventional radiology: motivations and deterrents. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Ahn S, Lee D, Jeong H, Moon D, Park H, Park N. 024 Advanced Glycation End-products Measuring with Skin Auto Fluorescence: Correlation with Diabetic Erectile Dysfunction and Non-diabetic Erectile Dysfunction. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2019.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ko A, Park HJ, Lee ES, Park SB, Kim YK, Choi SY, Ahn S. Comparison of the diagnostic performance of the 2017 and 2018 versions of LI-RADS for hepatocellular carcinoma on gadoxetic acid enhanced MRI. Clin Radiol 2019; 75:319.e1-319.e9. [PMID: 31858990 DOI: 10.1016/j.crad.2019.11.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 11/13/2019] [Indexed: 12/18/2022]
Abstract
AIM To compare the diagnostic performance of the 2017 (v2017) and 2018 versions (v2018) of the Liver Imaging-Reporting and Data System (LI-RADS) for hepatocellular carcinoma (HCC) using gadoxetic acid-enhanced magnetic resonance imaging (Gd-EOB-MRI) and to evaluate the effect in v2018. MATERIALS AND METHODS Treatment-naive patients at high-risk for HCC who underwent Gd-EOB-MRI were included. The LI-RADS categories were assigned according to v2017 and v2018. The diagnostic performances were compared between v2017 and v2018 according to the size and combination of imaging features. RESULTS A total of 117 patients with 137 observations were identified, including 89 HCCs; 76.2% (64/84) of observations with threshold growth were re-classified as subthreshold growth when using v2018 instead of v2017. The final categories changed in nine (14%) cases. For the combination of LR-5/LR-5V, there were no significant differences in sensitivity and specificity between the two versions (sensitivity, 64% versus 58.4%; specificity, 87.5% versus 85.4%; all p>0.05). For the combination of LR-4 and LR-5/5V, the diagnostic performance of v2018 was inferior to that of v2017 when considering only major features (accuracy, 86.1% versus 80.3%, respectively; p=0.013), particularly in observations measuring 10-20 mm, but was comparable after adding the ancillary features (accuracy, 86.9% versus 86.1%, respectively; p=1.00). CONCLUSION In LI-RADS v2018, although a considerable number of observations re-classified subthreshold growth, changes in the assigned categories were insignificant; overall diagnostic performance was comparable to that of v2017, but v2018 might emphasise the value of ancillary features in combination with major features for determining the probability of HCC.
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Affiliation(s)
- A Ko
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - H J Park
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea.
| | - E S Lee
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - S B Park
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - Y K Kim
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-Y Choi
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - S Ahn
- Department of Mathematics, Ajou University, Suwon, Republic of Korea
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Kim G, Ahn S, Hwang JH, Lee JC, Kim J. High PD-L1 expression is associated with treatment response to pembrolizumab in patients with advanced biliary tract cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ahn S, Lee S, Cho J, Kim J. Evaluation of Fiducial Tracking Availability According to Fiducial Distribution in Radiosurgery. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wolf C, Langer C, Montes F, Pereira J, Ong WJ, Poxon-Pearson T, Ahn S, Ayoub S, Baumann T, Bazin D, Bender PC, Brown BA, Browne J, Crawford H, Cyburt RH, Deleeuw E, Elman B, Fiebiger S, Gade A, Gastis P, Lipschutz S, Longfellow B, Meisel Z, Nunes FM, Perdikakis G, Reifarth R, Richter WA, Schatz H, Schmidt K, Schmitt J, Sullivan C, Titus R, Weisshaar D, Woods PJ, Zamora JC, Zegers RGT. Constraining the Neutron Star Compactness: Extraction of the ^{23}Al(p,γ) Reaction Rate for the rp Process. Phys Rev Lett 2019; 122:232701. [PMID: 31298878 DOI: 10.1103/physrevlett.122.232701] [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: 01/28/2019] [Revised: 04/10/2019] [Indexed: 06/10/2023]
Abstract
The ^{23}Al(p,γ)^{24}Si reaction is among the most important reactions driving the energy generation in type-I x-ray bursts. However, the present reaction-rate uncertainty limits constraints on neutron star properties that can be achieved with burst model-observation comparisons. Here, we present a novel technique for constraining this important reaction by combining the GRETINA array with the neutron detector LENDA coupled to the S800 spectrograph at the National Superconducting Cyclotron Laboratory. The ^{23}Al(d,n) reaction was used to populate the astrophysically important states in ^{24}Si. This enables a measurement in complete kinematics for extracting all relevant inputs necessary to calculate the reaction rate. For the first time, a predicted close-lying doublet of a 2_{2}^{+} and (4_{1}^{+},0_{2}^{+}) state in ^{24}Si was disentangled, finally resolving conflicting results from two previous measurements. Moreover, it was possible to extract spectroscopic factors using GRETINA and LENDA simultaneously. This new technique may be used to constrain other important reaction rates for various astrophysical scenarios.
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Affiliation(s)
- C Wolf
- Institute for Applied Physics, Goethe University, 60438 Frankfurt am Main, Germany
| | - C Langer
- Institute for Applied Physics, Goethe University, 60438 Frankfurt am Main, Germany
| | - F Montes
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Pereira
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - W-J Ong
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - T Poxon-Pearson
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Ahn
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Ayoub
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - T Baumann
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Bazin
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - P C Bender
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - B A Brown
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Browne
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - H Crawford
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R H Cyburt
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - E Deleeuw
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Elman
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Fiebiger
- Institute for Applied Physics, Goethe University, 60438 Frankfurt am Main, Germany
| | - A Gade
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - P Gastis
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Central Michigan University, Mount Pleasant, Michigan 48859, USA
| | - S Lipschutz
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Longfellow
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - Z Meisel
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Institute of Nuclear & Particle Physics, Department of Physics & Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - F M Nunes
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - G Perdikakis
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Central Michigan University, Mount Pleasant, Michigan 48859, USA
| | - R Reifarth
- Institute for Applied Physics, Goethe University, 60438 Frankfurt am Main, Germany
| | - W A Richter
- Department of Physics, University of Stellenbosch, Matieland 7602, South Africa
- iThemba LABS, P.O. Box 722, Somerset West 7129, South Africa
| | - H Schatz
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - K Schmidt
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Schmitt
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Sullivan
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - R Titus
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Weisshaar
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - P J Woods
- University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - J C Zamora
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - R G T Zegers
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
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Lee E, Kim H, Ahn S, Lee W, Kim H, Chun S, Min W. Performance evaluation of a novel automated chemiluminescence immunoassay for the concentration of everolimus and sirolimus. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.1581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yen T, Beavis A, Stone R, Wethington S, Carr C, Son J, Chambers LM, Ricci S, Burkett W, Richardson D, Staley A, Ahn S, Gehrig P, Torres D, Dowdy S, Sullivan M, Modesitt S, Watson C, Secord A, Veade A, Havrilesky L, Loreen A, Griffin K, Jackson A, Fader A. Early-stage endometrial cancer with lymphovascular space invasion: Chemotherapy improves progression free survival and reduces distant metastases. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.675] [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: 10/26/2022]
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Park S, Choi J, Kim Y, Yoon J, Ahn S, Choi W. EP-1682 Fetal dose from head and neck tomotherapy versus 3D conformal radiotherapy. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32102-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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