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Yun KY, Kim YH, Suh DS, Lee NK, Choi KU, Kim KH. Mixed endometrial stromal and smooth muscle tumor of the uterus in a postmenopausal woman: morphologic and immunohistochemical features. EUR J GYNAECOL ONCOL 2017; 38:319-322. [PMID: 29953805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Mixed endometrial stromal and smooth muscle tumor of the uterus is a rare occurrence, and it is truly challenging to diagnose or dif- ferentiate mesenchymal tumors of the uterine corpus, due to their many overlapping features. In most cases, the gross pathology of mixed endometrial stromal and smooth muscle tumor differs from that of pure endometrial stromal and pure smooth muscle tumors. A 59-year-old postmenopausal woman presented with vaginal spotting, low abdominal pain, and an uterine mass. Subsequent pelvic magnetic resonance imaging revealed a 4.0x3.8x3.4-cm sized uterine mass with enhancement. The mass showed restricted diffusion on diffusion-weighted images, and thus, was suspected to be uterine sarcoma rather than degenerative leiomyoma. Levels of tumor markers, CA 125, CA 19-9, and SCC, were within their normal ranges. The patient underwent exploratory laparotomy. Morphological and immunohistochemical evaluations were performed, and a final diagnosis of mixed endometrial stromal and smooth muscle tumor of the uterus was rendered. Her postoperative course was uneventful, and aromatase inhibitor adjuvant therapy was administered.
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Gum SI, Kim YH, Jung JC, Kim IG, Lee JS, Lee KW, Park YJ. Cyclosporine A inhibits TGF-β2-induced myofibroblasts of primary cultured human pterygium fibroblasts. Biochem Biophys Res Commun 2016; 482:1148-1153. [PMID: 27919682 DOI: 10.1016/j.bbrc.2016.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 12/01/2016] [Indexed: 11/27/2022]
Abstract
Cyclosporine A (CsA), an immunomodulatory drug, and is increasingly used to treat moderate dry eye syndrome and ocular surface inflammation. However, any inhibitory effect on differentiation of fibroblasts to myofibroblasts remains unclear. Here, we show that the inhibitory effect of CsA on transforming growth factor-beta2 (TGF-β2)-induced myofibroblasts in primary cultured human pterygium fibroblasts. CsA significantly decreased mRNA and protein expression of myofibroblast-related markers including α-SMA, laminin, and fibronectin. These findings were supported by the results from immunofluorescence staining. Taken together, these results indicate the therapeutic potential of CsA against pterygium progression. Further studies are necessary to elucidate the precise intracellular signal mechanism responsible for CsA-induced downregulation of myofibroblast markers in pterygium fibroblasts.
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Affiliation(s)
- Sang Il Gum
- Cheil Eye Research Institute, Cheil Eye Hospital, 1 Ayang-ro, Dong-gu, Daegu, 701-820, Republic of Korea
| | - Yeoun-Hee Kim
- Cheil Eye Research Institute, Cheil Eye Hospital, 1 Ayang-ro, Dong-gu, Daegu, 701-820, Republic of Korea; Korean Medicine (KM)-Application Centre, Korea Institute of Oriental Medicine (KIOM), 70, Chemdan-ro, Dong-gu, Daegu, 701-300, Republic of Korea
| | - Jae-Chang Jung
- Developmental Biology Laboratory, Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Im Gyu Kim
- Cheil Eye Research Institute, Cheil Eye Hospital, 1 Ayang-ro, Dong-gu, Daegu, 701-820, Republic of Korea
| | - Jun Seok Lee
- Cheil Eye Research Institute, Cheil Eye Hospital, 1 Ayang-ro, Dong-gu, Daegu, 701-820, Republic of Korea
| | - Kyoo Won Lee
- Cheil Eye Research Institute, Cheil Eye Hospital, 1 Ayang-ro, Dong-gu, Daegu, 701-820, Republic of Korea
| | - Young Jeung Park
- Cheil Eye Research Institute, Cheil Eye Hospital, 1 Ayang-ro, Dong-gu, Daegu, 701-820, Republic of Korea.
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Herrmann HW, Kim YH, McEvoy AM, Zylstra AB, Young CS, Lopez FE, Griego JR, Fatherley VE, Oertel JA, Stoeffl W, Khater H, Hernandez JE, Carpenter A, Rubery MS, Horsfield CJ, Gales S, Leatherland A, Hilsabeck T, Kilkenny JD, Malone RM, Hares JD, Milnes J, Shmayda WT, Stoeckl C, Batha SH. Next generation gamma-ray Cherenkov detectors for the National Ignition Facility. Rev Sci Instrum 2016; 87:11E732. [PMID: 27910331 DOI: 10.1063/1.4962059] [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] [Indexed: 06/06/2023]
Abstract
The newest generation of Gas Cherenkov Detector (GCD-3) employed in Inertial Confinement Fusion experiments at the Omega Laser Facility has provided improved performance over previous generations. Comparison of reaction histories measured using two different deuterium-tritium fusion products, namely gamma rays using GCD and neutrons using Neutron Temporal Diagnostic (NTD), have provided added credibility to both techniques. GCD-3 is now being brought to the National Ignition Facility (NIF) to supplement the existing Gamma Reaction History (GRH-6m) located 6 m from target chamber center (TCC). Initially it will be located in a reentrant well located 3.9 m from TCC. Data from GCD-3 will inform the design of a heavily-shielded "Super" GCD to be located as close as 20 cm from TCC. It will also provide a test-bed for faster optical detectors, potentially lowering the temporal resolution from the current ∼100 ps state-of-the-art photomultiplier tubes (PMT) to ∼10 ps Pulse Dilation PMT technology currently under development.
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Affiliation(s)
- H W Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Y H Kim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A M McEvoy
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A B Zylstra
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C S Young
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - F E Lopez
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J R Griego
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - V E Fatherley
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J A Oertel
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - W Stoeffl
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H Khater
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J E Hernandez
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Carpenter
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M S Rubery
- Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom
| | - C J Horsfield
- Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom
| | - S Gales
- Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom
| | - A Leatherland
- Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom
| | - T Hilsabeck
- General Atomics, San Diego, California 92186, USA
| | - J D Kilkenny
- General Atomics, San Diego, California 92186, USA
| | - R M Malone
- National Security Technologies, LLC, Los Alamos, New Mexico 87544, USA
| | - J D Hares
- Kentech Instruments LTD, Wallingford, United Kingdom
| | - J Milnes
- Photeck LTD, St Leonards on Sea, United Kingdom
| | - W T Shmayda
- Laboratory for Laser Energetics, Rochester, New York 14623, USA
| | - C Stoeckl
- Laboratory for Laser Energetics, Rochester, New York 14623, USA
| | - S H Batha
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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104
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Abstract
Odontoblasts form dentin at the outermost surface of tooth pulp. An increasing level of evidence in recent years, along with their locational advantage, implicates odontoblasts as a secondary role as sensory or immune cells. Extracellular adenosine triphosphate (ATP) is a well-characterized signaling molecule in the neuronal and immune systems, and its potential involvement in interodontoblast communications was recently demonstrated. In an effort to elaborate the ATP-mediated signaling pathway in odontoblasts, the current study performed single-cell reverse transcription polymerase chain reaction (RT-PCR) and immunofluorescent detection to investigate the expression of ATP receptors related to calcium signal in odontoblasts from incisal teeth of 8- to 10-wk-old rats, and demonstrated an in vitro response to ATP application via calcium imaging experiments. While whole tissue RT-PCR analysis detected P2Y2, P2Y4, and all 7 subtypes (P2X1 to P2X7) in tooth pulp, single-cell RT-PCR analysis of acutely isolated rat odontoblasts revealed P2Y2, P2Y4, P2X2, P2X4, P2X6, and P2X7 expression in only a subset (23% to 47%) of cells tested, with no evidence for P2X1, P2X3, and P2X5 expression. An increase of intracellular Ca2+ concentration in response to 100μM ATP, which was repeated after pretreatment of thapsigargin or under the Ca2+-free condition, suggested function of both ionotropic and metabotropic ATP receptors in odontoblasts. The enhancement of ATP-induced calcium response by ivermectin and inhibition by 5-(3-bromophenyl)-1,3-dihydro-2H-benzofuro[3,2-e]-1,4-diazepin-2-one (5-BDBD) confirmed a functional P2X4 subtype in odontoblasts. Positive calcium response to 2',3'-O-(benzoyl-4-benzoyl)-ATP (BzATP) and negative response to α,β-methylene ATP suggested P2X2, P2X4, and P2X7 as functional subunits in rat odontoblasts. Single-cell RT-PCR analysis of the cells with confirmed calcium response and immunofluorescent detection further corroborated the expression of P2X4 and P2X7 in odontoblasts. Overall, this study demonstrated heterogeneous expression of calcium-related ATP receptor subtypes in subsets of individual odontoblasts, suggesting extracellular ATP as a potential signal mediator for odontoblastic functions.
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Affiliation(s)
- B M Lee
- 1 Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - H Jo
- 1 Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - G Park
- 1 Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Y H Kim
- 1 Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - C K Park
- 2 Department of Physiology, Graduate School of Medicine, Gachon University, Incheon, Republic of Korea
| | - S J Jung
- 3 Department of Physiology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - G Chung
- 1 Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - S B Oh
- 1 Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
- 4 Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea
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105
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Shin S, Kim YH, Kim SH, Lee SO, Kwon HW, Choi JY, Han DJ. Incidence and differential characteristics of culture-negative fever following pancreas transplantation with anti-thymocyte globulin induction. Transpl Infect Dis 2016; 18:681-689. [PMID: 27389917 DOI: 10.1111/tid.12572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 02/06/2016] [Accepted: 04/17/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Limited data are available on the incidence and characteristics of culture-negative fever following pancreas transplantation (PTx) with anti-thymocyte globulin (ATG) induction. Our study aims to better define the features of culture-negative fever, so it can be delineated from infectious fever, hopefully helping clinicians to guide antibiotic therapy in this high-risk patient population. METHODS We performed a retrospective cohort study of postoperative fever among 198 consecutive patients undergoing PTx at our center between August 1, 2004 and December 31, 2014. Fever was classified as culture-negative if there was neither a positive culture nor a documented clinical diagnosis of infection. RESULTS Fever was identified in 113 patients; 66 were deemed to be infectious, 39 were culture-negative, and 8 were indeterminate. High body mass index of recipient (odds ratio 1.87, 95% confidence interval: 1.15-3.03, P = 0.011) was a significant factor associated with culture-negative fever in multivariate analysis. No patients with culture-negative fever were diagnosed with infiltrates or effusion on chest radiography. In addition, an increase in white blood cell count, C-reactive protein, and serum amylase was less prominent in culture-negative fever. Culture-negative fever developed most frequently at postoperative 7 or 14 days, showing a biphasic curve. CONCLUSION Culture-negative fever develops in a substantial proportion of patients early after PTx. The awareness of the possibility and clinical features of post-transplant culture-negative fever might help clinicians to guide antibiotic therapy in this high-risk patient population, especially following ATG induction and early steroid withdrawal.
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Affiliation(s)
- S Shin
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Y H Kim
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S-H Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S-O Lee
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H W Kwon
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Y Choi
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D J Han
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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106
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Choi HY, Choi S, Kim YH, Lim HS. Population Pharmacokinetic and Pharmacodynamic Modeling Analysis of GCC-4401C, a Novel Direct Factor Xa Inhibitor, in Healthy Volunteers. CPT Pharmacometrics Syst Pharmacol 2016; 5:532-543. [PMID: 27511836 PMCID: PMC5080649 DOI: 10.1002/psp4.12103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 06/06/2016] [Accepted: 07/07/2016] [Indexed: 01/02/2023]
Abstract
GCC‐4401C, an orally active direct factor Xa inhibitor that is similar to rivaroxaban, is currently under development for venous thromboembolic disease (VTE). The purpose of this study was to characterize the pharmacokinetics (PKs) and pharmacodynamics (PDs) of GCC‐4401C by population modeling analysis and to predict proper dosage regimens compared to rivaroxaban using data from two phase I clinical studies. Plasma GCC‐4401C concentrations over time were best described by a two‐compartment linear model and body weight was associated with central volume of distribution. Relevant PD markers generally changed in a dose‐dependent manner and were described well with sigmoid, simple maximum effect, or linear models. GCC‐4401C was absorbed more rapidly than rivaroxaban. Comparisons based on simulations of PD marker changes over time suggest that 20 mg and 40 mg of GCC‐4401C administered under fasted status are comparable to 10 mg and 20 mg of rivaroxaban under fed status.
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Affiliation(s)
- H Y Choi
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Ulsan University College of Medicine, Republic of Korea
| | - S Choi
- Research Center, Green Cross Corporation, Yongin, Republic of Korea
| | - Y H Kim
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Ulsan University College of Medicine, Republic of Korea
| | - H S Lim
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Ulsan University College of Medicine, Republic of Korea.
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107
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Choi JY, Jung JH, Kwon H, Shin S, Kim YH, Han DJ. Pancreas Transplantation From Living Donors: A Single Center Experience of 20 Cases. Am J Transplant 2016; 16:2413-20. [PMID: 26833623 DOI: 10.1111/ajt.13738] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/01/2016] [Accepted: 01/19/2016] [Indexed: 01/25/2023]
Abstract
Living donor pancreas transplantation (LDPT) has several advantages over deceased donor pancreas transplantation (DDPT), including better HLA matching, shorter ischemic time, and shorter waiting time. It remains an attractive option for diabetes mellitus (DM) patients with end stage renal disease. We reviewed 20 cases of LDPT performed in Asan Medical Center between October 1992 and March 2015. Six cases (30%) were pancreas transplantation alone (PTA), and the rest (70%) were simultaneous pancreas and kidney transplantation (SPK). Relations of donor and recipient were parents in 7 (35%), siblings in 6 (30%), spouse in 6 (30%), and cousin in 1 (5%). Graft survival in SPK at 1, 3, 5, and 10 years was 91.7%, 83.3%, 83.3%, and 83.3%, respectively, and that in PTA recipients was 50%, 33.3%, 16.7%, and 16.7%, respectively (p = 0.005). Causes of graft failure in SPK were thrombosis (one case), and rejection (one case), whereas those in PTA were noncompliance (two cases), thrombosis (one case), reflux pancreatitis (one case), and chronic rejection (one case). In terms of pancreas exocrine drainage, two grafts (25%) maintained their function in bladder drainage, while all grafts maintained in enteric drainage p < 0.05). Seven (35%) donors experienced minor pancreatic juice leakage and one underwent reoperation due to postoperative hematoma. Most donors maintained normoglycemia and normal renal function. However, two donors developed DM (at 1 and 90 months postdonation), and were treated with oral hypoglycemic agents. Graft survival in PTA recipients was poorer than in SPK due to poor compliance and bladder drainage-related problems. The surgical and metabolic complication rates of donors can be minimized by applying strict donor criteria. Therefore, LDPT with enteric drainage is an acceptable treatment for SPK.
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Affiliation(s)
- J Y Choi
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - J H Jung
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - H Kwon
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - S Shin
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Y H Kim
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - D J Han
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
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108
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Zylstra AB, Herrmann HW, Johnson MG, Kim YH, Frenje JA, Hale G, Li CK, Rubery M, Paris M, Bacher A, Brune CR, Forrest C, Glebov VY, Janezic R, McNabb D, Nikroo A, Pino J, Sangster TC, Séguin FH, Seka W, Sio H, Stoeckl C, Petrasso RD. Using Inertial Fusion Implosions to Measure the T+^{3}He Fusion Cross Section at Nucleosynthesis-Relevant Energies. Phys Rev Lett 2016; 117:035002. [PMID: 27472118 DOI: 10.1103/physrevlett.117.035002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Indexed: 06/06/2023]
Abstract
Light nuclei were created during big-bang nucleosynthesis (BBN). Standard BBN theory, using rates inferred from accelerator-beam data, cannot explain high levels of ^{6}Li in low-metallicity stars. Using high-energy-density plasmas we measure the T(^{3}He,γ)^{6}Li reaction rate, a candidate for anomalously high ^{6}Li production; we find that the rate is too low to explain the observations, and different than values used in common BBN models. This is the first data directly relevant to BBN, and also the first use of laboratory plasmas, at comparable conditions to astrophysical systems, to address a problem in nuclear astrophysics.
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Affiliation(s)
- A B Zylstra
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - H W Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Gatu Johnson
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y H Kim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J A Frenje
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Hale
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C K Li
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Rubery
- Plasma Physics Department, AWE plc, Reading RG7 4PR, United Kingdom
| | - M Paris
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A Bacher
- Indiana University, Bloomington, Indiana 47405, USA
| | - C R Brune
- Ohio University, Athens, Ohio 45701, USA
| | - C Forrest
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - V Yu Glebov
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - R Janezic
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - D McNabb
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Nikroo
- General Atomics, San Diego, California 92186, USA
| | - J Pino
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - T C Sangster
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - F H Séguin
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W Seka
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - H Sio
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Stoeckl
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - R D Petrasso
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Abstract
The sphincteric function of the larynx, essential to lower airway protection, is most efficiently achieved through strong reflex adduction by both vocal cords. We hypothesize that central facilitation is an essential component of a bilateral adductor reflex and that its disturbance could result in weakened sphincteric closure. Six adult 50-kg pigs underwent evoked response laryngeal electromyography under 0.5 to 1.0 minimal alveolar concentration (MAC) isoflurane anesthesia. The internal branch of the superior laryngeal nerve was stimulated through bipolar platinum-iridium electrodes, and recording electrodes were positioned in the ipsilateral and contralateral thyroarytenoid muscles. Consistent threshold responses were obtained ipsilaterally from 0.5 to 1.0 MAC anesthesia. However, the contralateral reflex responses approached 0% in successive trials as anesthetic levels approached 1.0 MAC. Alteration of central facilitation by deepening anesthesia abolishes the crossed adductor reflex, predisposing to a weakened glottic closure response. A precise understanding of this effect may improve the prevention of aspiration in patients emerging from prolonged sedation or under heavy psychotropic control.
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Affiliation(s)
- C T Sasaki
- Department of Surgery, Yale University School of Medicine, New Haven, Connecticut 06520-8041, USA
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110
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Kim YH, Hwang KT, Kim JT, Kim SW. What is the ideal interval between dressing changes during negative pressure wound therapy for open traumatic fractures? J Wound Care 2016; 24:536, 538-40, 542. [PMID: 26551646 DOI: 10.12968/jowc.2015.24.11.536] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Negative pressure wound therapy (NPWT) is effective in infection control during treatment of severe open fractures. However frequent dressing changes during NPWT are costly and cause patient discomfort. If the interval between dressing changes could be extended, these problems would be reduced. In this article we compare the outcomes of open IIIB fractures with 3-day versus 7-day intervals between dressing changes. METHOD Patients who sustained Gustilo IIIB open fractures were included. All underwent conventional orthopaedic fixation with delayed latissimus dorsi flap coverage. Group 1 had 3-day intervals between dressing changes and group 2 had 7-day intervals. The final outcomes in the two groups were analysed. RESULTS There were 38 patients in group 1 and 34 patients in group 2. Although the period between admission and final operation was similar in the two groups, the mean number of NPWT changes was 4.54 in 3 day in group 1 and 1.95 in group 2 (p<0.001). This led to a difference in NPWT-related costs; $341.26 in group 1 and $237.49 in group 2 (p<0.001). There was no difference in the frequency of complications such as infection or non-union of fractures. CONCLUSION NPWT is useful treatment option for open fractures, to bridge between initial debridement and final microsurgical tissue transfer. Considering patient comfort, the costs related to the NPWT, and the final flap results, a 7-day interval between changes of the NPWT is acceptable.
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Affiliation(s)
- Y H Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Hanyang University, Seoul, Korea
| | - K T Hwang
- Department of Orthopedic Surgery, College of Medicine, Hanyang University, Seoul, Korea
| | - J T Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Hanyang University, Seoul, Korea
| | - S W Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul National University Hospital, Seoul, Korea
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111
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Kim KH, Hosseindoust A, Ingale SL, Lee SH, Noh HS, Choi YH, Jeon SM, Kim YH, Chae BJ. Effects of Gestational Housing on Reproductive Performance and Behavior of Sows with Different Backfat Thickness. Asian-Australas J Anim Sci 2016; 29:142-8. [PMID: 26732338 PMCID: PMC4698681 DOI: 10.5713/ajas.14.0973] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 02/03/2015] [Accepted: 09/01/2015] [Indexed: 11/27/2022]
Abstract
The present study investigated the effects of back-fat thickness at d 107 of gestation and housing types during gestation on reproductive performance and behavior of sows. A total of 64 crossbred sows (Landrace×Yorkshire) in their 3 to 4 parities were allotted to one of four treatments (n = 16) over two consecutive parities. During each parity, sows were assigned to two gestational housing types (stall or group housing) and two level of back-fat thickness (<20 or ≥20) at d 107 of gestation. Gestating sows were transferred from gestational crates to stalls or pens (group housing) 5 weeks before farrowing. All sows were moved to farrowing crates on d 109 of gestation. At weaning, back-fat thickness changes were lesser (p<0.05) in sows having back-fat thickness <20 mm than that of sows with ≥20 mm back-fat thickness at 107 d of gestation. Group housed sows had greater (p<0.05) feed intake and shorter (p<0.05) weaning-to-estrus interval than that of sows in stalls. At weaning, back-fat thickness changes were lesser (p<0.05) in group housed sows than that of sows in stalls. The number of piglets at weaning, growth rate and average daily gain were greater (p<0.05) in group housed sows than that of sows in stalls. During gestation, walking duration was more (p<0.05) in group housed sows. Group housed sows had lesser (p<0.05) farrowing duration and greater (p<0.05) eating time than that of sows in stalls. Result obtained in present study indicated that sows with ≥20 mm back-fat thickness at 107 days had better reproductive performance. Additionally, group housing of sows during last five week of gestation improved the performance and behavior and reproductive efficiency of sows.
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Affiliation(s)
- K H Kim
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - A Hosseindoust
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - S L Ingale
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - S H Lee
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - H S Noh
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - Y H Choi
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - S M Jeon
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - Y H Kim
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
| | - B J Chae
- Department of Animal Resources Development, Swine Science Division, National Institute of Animal Science, RDA, Cheonan, 31000, Korea
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112
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Lee ES, Jeong SJ, Kim YH, Jeon CJ. Transplantation of Neuro2a Cells into the Developing Postnatal Mouse Eye. Acta Histochem Cytochem 2015; 48:205-14. [PMID: 26855453 PMCID: PMC4731853 DOI: 10.1267/ahc.15027] [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: 07/31/2015] [Accepted: 10/26/2015] [Indexed: 11/22/2022] Open
Abstract
The present study aimed to investigate the influence of the host retinal microenvironment on cell migration and differentiation using Neuro2a (N2a) cells transduced with green fluorescent protein. N2a cells were transplanted into the vitreous cavities of developing mouse eyes (C57BL/6) on postnatal days 1, 5, and 10 (P1, 5, and 10). To analyze the effects of the host microenvironment on neural differentiation of N2a cells in vitro, cells were treated with a conditioned medium (CM) collected from retinal cells cultured at each developmental stage. We observed that numerous cells transplanted into P5 mice eyes migrated into all layers of the host retina, and the presence of processes indicated morphological differentiation. Some transplanted N2a cells expressed several neural markers. However, cells transplanted into the P1 and 10 mice eyes only proliferated within the vitreous cavity. Neurite length increased in N2a cells treated with CM collected from the cultured retinal cells from P5 and 10 mice, while western blotting revealed that the levels of proteins related to neural differentiation were not significantly altered in N2a cells treated with CM. We show that the migration and differentiation capacities of transplanted cells were differentially influenced by the microenvironment of the retinal postnatal ontogeny.
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Affiliation(s)
- Eun-Shil Lee
- Department of Biology, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, and Brain Science and Engineering Institute, Kyungpook National University
| | - Se-Jin Jeong
- Department of Biology, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, and Brain Science and Engineering Institute, Kyungpook National University
| | | | - Chang-Jin Jeon
- Department of Biology, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, and Brain Science and Engineering Institute, Kyungpook National University
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113
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Seo JH, Lee KN, Park SH, Choi CW, Kim BS, Shin SW, Kim YH, Kim JS. Retinoic Acid as a Radiosensitizer on the Head and Neck Squamous Cell Carcinoma Cell Lines. Cancer Res Treat 2015; 33:335-42. [PMID: 26680805 DOI: 10.4143/crt.2001.33.4.335] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
PURPOSE Retinoic acid is a substance that has previously been reported to increase radiosensitivity, but at concentrations likely to inhibit cell growth or to induce celluar differentiation. We choose head and neck cancer cell lines to investigate the role of retinoic acid as a radiosensitizer and to elucidate the mechanism through the changes in the expression of retinoid receptors and squamous cell differentiation marker. MATERIALS AND METHODS Three cell lines (PCI-50, SqCC/ Y1 and UMSCC-11B) were used. 7-AAD staining for apoptosis and Western blot analysis for RAR-alpha, beta, gamma, RXR-alpha, beta, gamma and involucrin were performed after various treatments (control, beta-all-trans-retinoic acid (t-RA) only (10 6 M), radiation only (3 Gy), radiation with t-RA). RESULTS The synergistic radiosensitivity effect of t-RA was seen only radioresistant UMSCC-11B cell line. Expression of RAR-beta was induced by t-RA in maily UMSCC- 11B cell line. RAR-alpha,gamma, and RXR-alpha, beta, gamma expression were not changed in all cell lines tested. Expression of involucrin was inhibited by t-RA in PCI-50 cell line but other two cell lines were not changed by t-RA treatment. CONCLUSION We found that only radioresistant cell line (UMSCC-11B) showed synergistic radiosensitivity effect by t-RA and this mechanism may be through RAR-beta expression induction.
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114
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Seon HJ, Kim YI, Lim SC, Kim YH, Kwon YS. Clinical significance of residual lesions in chest computed tomography after anti-tuberculosis treatment. Int J Tuberc Lung Dis 2015; 18:341-6. [PMID: 24670573 DOI: 10.5588/ijtld.13.0565] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To evaluate the clinical significance of residual lesions in chest computed tomography (CT) findings at the end of anti-tuberculosis treatment. METHODS We retrospectively reviewed 66 newly diagnosed patients with pulmonary tuberculosis (PTB) who were proven bacteriologically and/or histologically between March 2009 and December 2011. All patients were treated with standard short-course chemotherapy. Chest CT scans were performed before and after treatment. We assessed the residual lesions according to the response to treatment: possible active, equivocal and no active lesions. RESULTS The most common CT finding before anti-tuberculosis treatment was bronchogenic spreading inflammation, such as the tree-in-bud appearance. After completion of anti-tuberculosis treatment, regression of the initial parenchymal findings was found in all types of PTB lesions except consolidations. According to the treatment response, 33 (50%) patients had possible active lesions, 5 (8%) had equivocal lesions and 28 (42%) had no active lesions. However, no lesions progressed during a median follow-up of 15 months (interquartile range 10-21 months) after treatment completion, and no patient relapsed during this period. CONCLUSIONS If initial parenchymal lesions regressed after sufficient TB treatment, residual lesions were not suggestive of persistent activity or the possibility of early relapse of PTB.
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Affiliation(s)
- H J Seon
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Y I Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - S C Lim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Y H Kim
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Y S Kwon
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
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Choi BH, Cho HK, Jung JH, Choi JY, Shin S, Kim YH, Han DJ. How to reduce lethal infectious complications in ABO-incompatible kidney transplantation. Transplant Proc 2015; 47:653-9. [PMID: 25891705 DOI: 10.1016/j.transproceed.2014.11.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 11/12/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND ABO-incompatible organ transplants are good options for expanding the living donor pool; however, the necessary pre-conditioning to remove ABO antibodies before surgery can evoke critical infectious complications after surgery. METHODS Between February 2009 and July 2013, we performed ABO-incompatible kidney transplantation on 182 patients. We analyzed the first 85 patients for post-operative infectious complications in a cross-sectional cohort of patients (group 1, n = 85) who had received an ABO-incompatible kidney transplant and, in light of the results, amended the pre-conditioning (lower dose of rituximab, selective use of calcineurin inhibitors, anti-metabolite reduction, and prophylactic strategy) given to a prospective cohort (group 2, n = 97). RESULTS The characteristics of the two groups did not differ significantly. Infectious complications decreased significantly in group 2, including cytomegalovirus (anti-genemia 64.7% vs 27.8%, P < .001) and BK viremia (35.2% vs 18.6%, P = .008). The acute rejection rate and death-censored graft survival were similar in both groups. Notably, with the modified protocol, there were no deaths (8.2% vs 0.0%, P = .03). CONCLUSIONS Pre-conditioning for ABO-incompatible kidney transplantation is a prerequisite for successful outcome; its drawbacks can be limited with the use of a modified immunosuppressive strategy. If immunosuppression is modified according to host conditions, ABO-incompatible kidney transplantation can be performed safely with a successful graft outcome.
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Affiliation(s)
- B-H Choi
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - H K Cho
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - J H Jung
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - J Y Choi
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S Shin
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Y H Kim
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - D J Han
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
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Shin JS, Kim JM, Kim JS, Min BH, Kim YH, Kim HJ, Jang JY, Yoon IH, Kang HJ, Kim J, Hwang ES, Lim DG, Lee WW, Ha J, Jung KC, Park SH, Kim SJ, Park CG. Long-term control of diabetes in immunosuppressed nonhuman primates (NHP) by the transplantation of adult porcine islets. Am J Transplant 2015; 15:2837-50. [PMID: 26096041 DOI: 10.1111/ajt.13345] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 04/02/2015] [Accepted: 04/04/2015] [Indexed: 01/25/2023]
Abstract
Pig islets are an alternative source for islet transplantation to treat type 1 diabetes (T1D), but reproducible curative potential in the pig-to-nonhuman primate (NHP) model has not been demonstrated. Here, we report that pig islet grafts survived and maintained normoglycemia for >6 months in four of five consecutive immunosuppressed NHPs. Pig islets were isolated from designated pathogen-free (DPF) miniature pigs and infused intraportally into streptozotocin-induced diabetic rhesus monkeys under pretreatment with cobra venom factor (CVF), anti-thymocyte globulin (ATG) induction and maintenance with anti-CD154 monoclonal antibody and low-dose sirolimus. Ex vivo expanded autologous regulatory T cells were adoptively transferred in three recipients. Blood glucose levels were promptly normalized in all five monkeys and normoglycemia (90-110 mg/dL) was maintained for >6 months in four cases, the longest currently up to 603 days. Intravenous glucose tolerance tests during the follow-up period showed excellent glucose disposal capacity and porcine C-peptide responses. Adoptive transfer of autologous regulatory T cells was likely to be associated with more stable and durable normoglycemia. Importantly, the recipients showed no serious adverse effects. Taken together, our results confirm the clinical feasibility of pig islet transplantation to treat T1D patients without the need for excessive immunosuppressive therapy.
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Affiliation(s)
- J S Shin
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J M Kim
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J S Kim
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - B H Min
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea
| | - Y H Kim
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
| | - H J Kim
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - J Y Jang
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea
| | - I H Yoon
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
| | - H J Kang
- Department of Laboratory Medicine, Hallym University College of Medicine, Anyang, Korea
| | - J Kim
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
| | - E S Hwang
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
| | - D G Lim
- National Medical Centre, Seoul, Korea
| | - W W Lee
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - J Ha
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - K C Jung
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - S H Park
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - S J Kim
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Myong-Ji Hospital, Koyang-si, Kyeonggi-do, Korea
| | - C G Park
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea.,Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Korea
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117
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Watanabe YX, Kim YH, Jeong SC, Hirayama Y, Imai N, Ishiyama H, Jung HS, Miyatake H, Choi S, Song JS, Clement E, de France G, Navin A, Rejmund M, Schmitt C, Pollarolo G, Corradi L, Fioretto E, Montanari D, Niikura M, Suzuki D, Nishibata H, Takatsu J. Pathway for the Production of Neutron-Rich Isotopes around the N=126 Shell Closure. Phys Rev Lett 2015; 115:172503. [PMID: 26551108 DOI: 10.1103/physrevlett.115.172503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Indexed: 06/05/2023]
Abstract
Absolute cross sections for isotopically identified products formed in multinucleon transfer in the (136)Xe+(198)Pt system at ∼8 MeV/nucleon are reported. The isotopic distributions obtained using a large acceptance spectrometer demonstrated the production of the "hard-to-reach" neutron-rich isotopes for Z<78 around the N=126 shell closure far from stability. The main contribution to the formation of these exotic nuclei is shown to arise in collisions with a small kinetic energy dissipation. The present experimental finding corroborates for the first time recent predictions that multinucleon transfer reactions would be the optimum method to populate and characterize neutron-rich isotopes around N=126 which are crucial for understanding both astrophysically relevant processes and the evolution of "magic" numbers far from stability.
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Affiliation(s)
- Y X Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y H Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
- Institute for Nuclear and Particle Astrophysics, Seoul National University, Seoul 08826, Korea
| | - S C Jeong
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y Hirayama
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - N Imai
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Ishiyama
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H S Jung
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Miyatake
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - S Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
- Institute for Nuclear and Particle Astrophysics, Seoul National University, Seoul 08826, Korea
| | - J S Song
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
- Institute for Nuclear and Particle Astrophysics, Seoul National University, Seoul 08826, Korea
- Institute for Basic Science, Daejeon 34047, Korea
| | - E Clement
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - G de France
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - A Navin
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - M Rejmund
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - C Schmitt
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - G Pollarolo
- Dipartimento di Fisica Teorica, Università di Torino, and Istituto Nazionale di Fisica Nucleare, I-10125 Torino, Italy
| | - L Corradi
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - E Fioretto
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - D Montanari
- Dipartimento di Fisica, Università di Padova, and Istituto Nazionale di Fisica Nucleare, I-35131 Padova, Italy
| | - M Niikura
- Institut de Physique Nucléaire (IPN), IN2P3-CNRS, F-91406 Orsay Cedex, France
| | - D Suzuki
- Institut de Physique Nucléaire (IPN), IN2P3-CNRS, F-91406 Orsay Cedex, France
| | - H Nishibata
- Department of Physics, Osaka University, Osaka 560-0043, Japan
| | - J Takatsu
- Department of Physics, Osaka University, Osaka 560-0043, Japan
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118
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Park SJ, Oh SH, Kang MS, Kim TH, Kang SW, Yoon YC, Kim YH. Reuse of a previously transplanted kidney from a deceased donor using Luminex virtual crossmatching: a case report. Transplant Proc 2015; 46:2083-5. [PMID: 25131112 DOI: 10.1016/j.transproceed.2014.06.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Kidney transplantation is the most desired modality of renal replacement therapy for patients with end-stage renal disease (ESRD). We have attempted to expand the organ donor pool through several methods, including the use of expanded donor criteria. Although previously transplanted kidneys are rarely reused, they can be suitable for transplantation into patients in need. We report a case of successful reuse of a previously transplanted kidney from a deceased donor by means of Luminex virtual crossmatching with the first donor and actual crossmatching with the second donor.
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Affiliation(s)
- S J Park
- Organ Transplantation Center, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea; Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - S H Oh
- Department of Laboratory Medicine, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - M S Kang
- Department of Pathology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - T H Kim
- Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - S W Kang
- Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - Y C Yoon
- Organ Transplantation Center, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea; Department of Cardiovascular Surgery, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - Y H Kim
- Organ Transplantation Center, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea; Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea.
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119
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Lee EY, Choi EJ, Kim JA, Hwang YL, Kim CD, Lee MH, Roh SS, Kim YH, Han I, Kang S. Malva verticillata seed extracts upregulate the Wnt pathway in human dermal papilla cells. Int J Cosmet Sci 2015; 38:148-54. [PMID: 26249736 DOI: 10.1111/ics.12268] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 07/28/2015] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Mesenchymal-epithelial interactions are important in controlling hair growth and the hair cycle. The β-catenin pathway of dermal papilla cells (DPCs) plays a pivotal role in morphogenesis and normal regeneration of hair follicles. Deletion of β-catenin in the dermal papilla reduces proliferation of the hair follicle progenitor cells that generate the hair shaft and induces an early onset of the catagen phase. In this study, a modulator of the Wnt/β-catenin activity was studied in oriental herb extracts on cultured human DPCs. METHODS The effect of Malva verticillata (M. verticillata) seeds on human DPCs was investigated by a Wnt/β-catenin reporter activity assay system (β-catenin-TCF/LEF reporter gene) and cell proliferation analysis. The synthesis of the factors related to hair growth and cycling was measured at both the mRNA and the protein level by semi-quantitative PCR and Western blot analysis, respectively. RESULTS An extract from M. verticillata seeds increased Wnt reporter activity in a concentration-dependent manner and also led to increased β-catenin levels in cultured human DPCs. Myristoleic acid, identified as an effective compound of M. verticillata seeds, stimulated the proliferation of DPCs in a dose-dependent manner and increased transcription levels of the downstream targets: IGF-1, KGF, VEGF and HGF. Myristoleic acid also enhanced the phosphorylation of MAPKs (Akt and p38). CONCLUSION Overall, the data suggest that this extract of M. verticillata seeds could be a good candidate for treating hair loss by modulating the Wnt/β-catenin pathway in DPCs.
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Affiliation(s)
- E Y Lee
- Department of Biotechnology, CHA University, Seongnam, Korea
| | - E-J Choi
- Department of Biotechnology, CHA University, Seongnam, Korea
| | - J A Kim
- College of Pharmacy, Kyungpook National University, Daegu, Korea
| | | | - C-D Kim
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - M H Lee
- OBM Laboratory, Daejeon, Korea
| | - S S Roh
- OBM Laboratory, Daejeon, Korea
| | - Y H Kim
- College of Pharmacy, Chungnam National University, Daejeon, Korea
| | - I Han
- Department of Neurosurgery, CHA University, CHA Bundang Medical Center, Seongnam, Korea
| | - S Kang
- Department of Biotechnology, CHA University, Seongnam, Korea
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120
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Lee SW, Kim HJ, Yoo KH, Park YB, Park JY, Jung JY, Moon JY, Byun MK, Kim SW, Kim YH. Long-acting anticholinergic agents in patients with uncontrolled asthma: a systematic review and meta-analysis. Int J Tuberc Lung Dis 2015; 18:1421-30. [PMID: 25517806 DOI: 10.5588/ijtld.14.0275] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING A novel effective treatment is necessary for severe asthma. OBJECTIVE To review clinical trials examining the role of tiotropium in patients with poorly controlled asthma despite inhaled corticosteroid use with or without long-acting β₂-agonists. DESIGN A computerised search of electronic databases (Medline, EMBASE and Cochrane Central Register) was performed. Randomised controlled trials of at least a 4-week treatment duration with findings published in English were included. RESULTS Five studies involving 1635 patients were analysed. Compared with a placebo or a double dose of inhaled corticosteroids, the addition of tiotropium increased mean trough and peak forced expiratory volume in 1 second by 97 ml (95%CI 71-122) and 103 ml (95%CI 42-163), respectively. The mean differences in morning peak expiratory flow were 19.2 l/min (95%CI 11.8-26.6). Tiotropium also reduced the risk of severe acute exacerbation (OR 0.73, 95%CI 0.56-0.96) and improved Asthma Quality-of-Life Questionnaire score significantly by 0.10 (95%CI 0.04-0.16). There were no differences in serious adverse events. CONCLUSION The addition of tiotropium may be beneficial for patients with poorly controlled asthma, although exacerbation or safety issues should be clarified in long-term trials before its wide use in asthma.
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Affiliation(s)
- S W Lee
- Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H J Kim
- Institute for Evidence-based Medicine, Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - K H Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea
| | - Y B Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - J-Y Park
- Department of Pulmonology and Critical Care Medicine, Won Kwang University Sanbon Hospital, Sanbon, Korea
| | - J Y Jung
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University, College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - M K Byun
- Division of Pulmonology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S W Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Ewha Medical Center and Ewha Medical Research Institute, Ewha Womans University, School of Medicine, Mokdong Hospital, Seoul, Korea
| | - Y H Kim
- Department of Pulmonary and Critical Care Medicine, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea
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Ratanasuwan W, Kim YH, Sah BK, Suwanagool S, Kim DR, Anekthananon A, Lopez AL, Techasathit W, Grahek SL, Clemens JD, Wierzba TF. Peru-15 (Choleragarde(®)), a live attenuated oral cholera vaccine, is safe and immunogenic in human immunodeficiency virus (HIV)-seropositive adults in Thailand. Vaccine 2015; 33:4820-6. [PMID: 26241948 DOI: 10.1016/j.vaccine.2015.07.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 07/21/2015] [Accepted: 07/23/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Many areas with endemic and epidemic cholera report significant levels of HIV transmission. According to the World Health Organization (WHO), over 95% of reported cholera cases occur in Africa, which also accounts for nearly 70% of people living with HIV/AIDS globally. Peru-15, a promising single dose live attenuated oral cholera vaccine (LA-OCV), was previously found to be safe and immunogenic in cholera endemic areas. However, no data on the vaccine's safety among HIV-seropositive adults had been collected. METHODS This study was a double-blinded, individually randomized, placebo-controlled trial enrolling HIV-seropositive adults, 18-45 years of age, conducted in Bangkok, Thailand, to assess the safety of Peru-15 in a HIV-seropositive cohort. RESULTS 32 HIV infected subjects were randomized to receive either a single oral dose of the Peru-15 vaccine with a buffer or a placebo (buffer only). No serious adverse events were reported during the follow-up period in either group. The geometric mean fold (GMF) rise in V. cholerae O1 El Tor specific antibody titers between baseline and 7 days after dosing was 32.0 (p<0.001) in the vaccine group compared to 1.6 (p<0.14) in the placebo group. Among the 16 vaccinees,14 vaccinees (87.5%) had seroconversion compared to 1 of 16 placebo recipients (6.3%). V. cholerae was isolated from the stool of one vaccinee, and found to be genetically identical to the Peru-15 vaccine strain. There were no significant changes in HIV viral load or CD4 T-cell counts between vaccine and placebo groups. CONCLUSION Peru-15 was shown to be safe and immunogenic in HIV-seropositive Thai adults.
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Affiliation(s)
- W Ratanasuwan
- Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Y H Kim
- International Vaccine Institute, Seoul, Republic of Korea.
| | - B K Sah
- International Vaccine Institute, Seoul, Republic of Korea
| | - S Suwanagool
- Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - D R Kim
- International Vaccine Institute, Seoul, Republic of Korea
| | | | - A L Lopez
- University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - W Techasathit
- Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - S L Grahek
- The George Washington University School of Medicine and Health Sciences, Washington, DC, United States; Sabin Vaccine Institute, Washington, DC, United States
| | - J D Clemens
- International Center for Diarrheal Disease Research, Dhaka, Bangladesh
| | - T F Wierzba
- International Vaccine Institute, Seoul, Republic of Korea
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Kim JH, Kim EJ, Kim YH, Kim YI, Lee SH, Jung JC, Lee KW, Park YJ. In Vivo Effects of Preservative-free and Preserved Prostaglandin Analogs: Mouse Ocular Surface Study. Korean J Ophthalmol 2015; 29:270-9. [PMID: 26240512 PMCID: PMC4520871 DOI: 10.3341/kjo.2015.29.4.270] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 07/18/2014] [Accepted: 01/02/2015] [Indexed: 11/29/2022] Open
Abstract
Purpose Chronic use of topical hypotensive agents induces several side effects caused by preservatives. The purpose of this study was to evaluate the effects of prostaglandin analogs with varying concentrations of benzalkonium chloride (BAC), preservative-free (PF), and alternative preservatives on mouse corneal tissue. Methods Thirty-five, 8- to 10-week-old female C57BL/6 mice (five mice for each group) were used for this study. To the control group, we applied normal saline, and to each drug-treated group we applied 0.02% BAC, bimatoprost 0.01% (with BAC 0.02%), latanoprost 0.005% (with BAC 0.02%), travoprost 0.004% (with 0.001% polyquad) or tafluprost 0.0015% with/without 0.001% BAC, once a day (9 p.m.) for 4 weeks. Corneal fluorescein staining was evaluated in all groups. After harvest, the corneal tissues were embedded in paraffin and then Hematoxylin-Eosin stain was performed for histopathological examination. Immunofluorescence staining was done against TNF-α, IL-6, HLA DR, pJNK, and pAkt. Results In corneal fluorescein staining, severe punctate epithelial keratitis was seen in the groups of 0.02% BAC, 0.02% BAC containing bimatoprost 0.01% and latanoprost 0.005%. The surface desquamation, irregular surface, loss of cell borders, anisocytosis and stromal shrinkage were observed in the groups of BAC-containing eye drops. Moreover, the groups treated with BAC-containing eye drops have high inflammatory markers, significantly decreased cell viability-related signal, pAkt, and higher apoptosis-inducing signal, pJNK, than the control group. On the other hand, travoprost 0.004% and PF tafluprost 0.0015% have less cellular morphologic changes, lower inflammation, and higher cellular viability than BAC-containing formulations. Conclusions Corneal damage, increased inflammation and apoptosis and low cell viability were observed in BAC-containing groups. PF or alternatively preserved glaucoma medications seem to be a reasonable and viable alternative to those preserved with BAC.
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Affiliation(s)
- Jee Hyun Kim
- Cheil Eye Research Institute, Cheil Eye Hospital, Daegu, Korea
| | - Eun Joo Kim
- Cheil Eye Research Institute, Cheil Eye Hospital, Daegu, Korea
| | - Yeoun-Hee Kim
- Cheil Eye Research Institute, Cheil Eye Hospital, Daegu, Korea
| | - Yong Il Kim
- Cheil Eye Research Institute, Cheil Eye Hospital, Daegu, Korea
| | - Se-Hyung Lee
- Developmental Biology Laboratory, Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| | - Jae-Chang Jung
- Developmental Biology Laboratory, Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| | - Kyoo Won Lee
- Cheil Eye Research Institute, Cheil Eye Hospital, Daegu, Korea
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Lee KH, Kim YH, Sung YJ, Oh MK. The Patient State Index is well balanced for propofol sedation. Hippokratia 2015; 19:235-238. [PMID: 27418783 PMCID: PMC4938471] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND The SEDLine™ monitor derived patient state index (PSI) is used to follow the depth of sedation. The demand for propofol sedation by anesthesiologists or non-anesthesiologists is increasing, and there are only a few studies addressing the relationship between PSI and propofol sedation. We aimed to investigate the ability of PSI index to identify the correct level of sedation of our patients during induction to anesthesia with target-controlled infusions of propofol. METHODS Twenty patients were enrolled in this study. The target effect site concentration of propofol was set at 1.5 μg/ml followed by increments of 0.5 μg/ml every five minutes. The PSI values and Modified Observer's Assessment of Alertness/Sedation (MOAA/S) scale were recorded every twenty-five seconds during the infusion of propofol. Patients were considered losing verbal responsiveness at MOAA/S scale ≤ 2. Also, blood pressure, heart rate, and oxygen saturation were recorded every five minutes. RESULTS The PSI values corresponding to the sedation of various depths (MOAA/S scales) and alertness with verbal response were significantly different (p <0.001). We observed a good correlation of the PSI values to the decreasing MOAA/S scale (r =0.87667). CONCLUSIONS The PSI index is well correlated with MOAA/S scale and effectively distinguishes the level of sedation during propofol infusion. Hippokratia 2015; 19 (3): 235-238.
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Affiliation(s)
- K H Lee
- Department of Anesthesiology and Pain Medicine of Haeundae Paik Hospital, Busan, Korea
| | - Y H Kim
- Department of Anesthesiology and Pain Medicine of Haeundae Paik Hospital, Busan, Korea
| | - Y J Sung
- Department of Anesthesiology and Pain Medicine of Haeundae Paik Hospital, Busan, Korea
| | - M K Oh
- Clinical Trial Center of Busan Paik Hospital, Busan, Korea
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Yoo KD, An JN, Kim CT, Cho JH, Kim CD, Park SK, Chae DW, Oh YK, Lim CS, Kim YS, Kim YH, Lee JP. Clinical outcomes in Asian elderly kidney transplant recipients: a multicenter cohort study. Transplant Proc 2015; 47:600-7. [PMID: 25891695 DOI: 10.1016/j.transproceed.2015.01.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 01/28/2015] [Indexed: 11/18/2022]
Abstract
BACKGROUND The kidney transplantation rate in elderly patients is increasing rapidly. However, the clinical outcomes of kidney transplantation in elderly patients have not yet been thoroughly evaluated. METHODS This multicenter cohort study included adult kidney transplant recipients (KTRs) admitted to five major tertiary hospitals in Korea between 1997 and 2012. A total of 3,565 adult participants were enrolled. Patient survival, allograft survival, and biopsy-proven acute rejection (BPAR) of 242 elderly recipients (≥ 60 years) were assessed and compared with those of a younger population. RESULTS Patients were divided into five groups according to age at time of transplantation. The proportion of elderly patients was 6.7 % (mean age, 63.1 ± 2.7 years; n = 242). The numbers of male patients (69.4%), those with diabetes mellitus history (36.3%), and those with pretransplantation ischemic heart disease history (17.7%) were significantly higher in the elderly group than in the younger age groups. Elderly patients were more likely to receive a cadaveric kidney, and overall mortality rates were significantly higher in the elderly patients (1-year survival 93.3%, 5-year survival 91.3%). However, death-censored allograft survival rate and BPAR were not affected by patient age (P = .104 and .501, respectively). Among the elderly, BPAR and female donors were independent risk factors for allograft loss. CONCLUSION The overall survival rate of the elderly KTRs was significantly lower than that of younger KTRs. However, the death-censored allograft survival rate did not differ between groups. Kidney transplantation should not be stagnated especially in elderly patients with end-stage renal disease.
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Affiliation(s)
- K D Yoo
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - J N An
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
| | - C T Kim
- School of Public Health, Seoul National University, Seoul, Korea
| | - J H Cho
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - C D Kim
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - S K Park
- Department of Internal Medicine, Asan Medical Center and University of Ulsan College of Medicine, Seoul, Korea
| | - D W Chae
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Y K Oh
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
| | - C S Lim
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
| | - Y S Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Y H Kim
- Department of Surgery, Asan Medical Center and University of Ulsan College of Medicine, Seoul, Korea.
| | - J P Lee
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea.
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Danly CR, Day TH, Fittinghoff DN, Herrmann H, Izumi N, Kim YH, Martinez JI, Merrill FE, Schmidt DW, Simpson RA, Volegov PL, Wilde CH. Simultaneous neutron and x-ray imaging of inertial confinement fusion experiments along a single line of sight at Omega. Rev Sci Instrum 2015; 86:043503. [PMID: 25933858 DOI: 10.1063/1.4918285] [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: 02/27/2015] [Accepted: 04/04/2015] [Indexed: 06/04/2023]
Abstract
Neutron and x-ray imaging provide critical information about the geometry and hydrodynamics of inertial confinement fusion implosions. However, existing diagnostics at Omega and the National Ignition Facility (NIF) cannot produce images in both neutrons and x-rays along the same line of sight. This leads to difficulty comparing these images, which capture different parts of the plasma geometry, for the asymmetric implosions seen in present experiments. Further, even when opposing port neutron and x-ray images are available, they use different detectors and cannot provide positive information about the relative positions of the neutron and x-ray sources. A technique has been demonstrated on implosions at Omega that can capture x-ray images along the same line of sight as the neutron images. The technique is described, and data from a set of experiments are presented, along with a discussion of techniques for coregistration of the various images. It is concluded that the technique is viable and could provide valuable information if implemented on NIF in the near future.
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Affiliation(s)
- C R Danly
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - T H Day
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - D N Fittinghoff
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - N Izumi
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Y H Kim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - J I Martinez
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - F E Merrill
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - D W Schmidt
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - R A Simpson
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - P L Volegov
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - C H Wilde
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
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Abstract
We investigated the incidence of soft-tissue lesions after small head metal-on-metal total hip replacement (MoM THR). Between December 1993 and May 1999, 149 patients (195 hips) underwent primary cementless MoM THR. During the follow-up period, three patients (five THRs) died and eight patients (14 THRs) were lost to follow-up. We requested that all patients undergo CT evaluation. After exclusion of five patients (six THRs) who had undergone a revision procedure, and 22 (28 THRs) who were unwilling to take part in this study, 111 patients (142 THRs) were evaluated. There were 63 men (88 THRs) and 48 women (54 THRs) with a mean age of 45.7 years (37 to 56) at the time of surgery. The mean follow-up was 15.4 years (13 to 19). A soft-tissue lesion was defined as an abnormal peri-prosthetic collection of fluid, solid lesion or asymmetrical soft-tissue mass. At final follow-up, soft-tissue lesions were found in relation to 28 THRs (19.7%), including 25 solid and three cystic lesions. They were found in 20 men and eight women; 26 lesions were asymptomatic and two were symptomatic. The mean maximal diameter of the soft-tissue lesion was 42.3 mm (17 to 135). The relatively high rate of soft-tissue lesions observed with small head MoM THR remains a concern.
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Affiliation(s)
- K T Hwang
- Department of Orthopaedic Surgery, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
| | - Y H Kim
- Department of Orthopaedic Surgery, Hanyang University, 153 Gyungchoon-ro, Guri-si, Gyunggi-do 471-701, Korea
| | - Y S Kim
- Department of Orthopaedic Surgery, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea
| | - J A Ryu
- Department of Radiology, Hanyang University, 153 Gyungchoon-ro, Guri-si, Gyunggi-do 471-701, Korea
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Chang HS, Shin SW, Lee TH, Bae DJ, Park JS, Kim YH, Uh ST, Choi BW, Kim MK, Choi IS, Park BL, Shin HD, Park CS. Development of a genetic marker set to diagnose aspirin-exacerbated respiratory disease in a genome-wide association study. Pharmacogenomics J 2015; 15:316-21. [PMID: 25707394 DOI: 10.1038/tpj.2014.78] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 09/28/2014] [Accepted: 11/05/2014] [Indexed: 12/27/2022]
Abstract
We developed a genetic marker set of single nucleotide polymorphisms (SNPs) by summing risk scores of 14 SNPs showing a significant association with aspirin-exacerbated respiratory disease (AERD) from our previous 660 W genome-wide association data. The summed scores were higher in the AERD than in the aspirin-tolerant asthma (ATA) group (P=8.58 × 10(-37)), and were correlated with the percent decrease in forced expiratory volume in 1 s after aspirin challenge (r(2)=0.150, P=5.84 × 10(-30)). The area under the curve of the scores for AERD in the receiver operating characteristic curve was 0.821. The best cutoff value of the summed risk scores was 1.01328 (P=1.38 × 10(-32)). The sensitivity and specificity of the best scores were 64.7% and 85.0%, respectively, with 42.1% positive and 93.4% negative predictive values. The summed risk score may be used as a genetic marker with good discriminative power for distinguishing AERD from ATA.
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Affiliation(s)
- H S Chang
- Department of Medical Bioscience, Graduate School, Soonchunhyang University, Asan, Republic of Korea
| | - S W Shin
- Asthma Genome Research Center, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - T H Lee
- Department of Medical Bioscience, Graduate School, Soonchunhyang University, Asan, Republic of Korea
| | - D J Bae
- Department of Medical Bioscience, Graduate School, Soonchunhyang University, Asan, Republic of Korea
| | - J S Park
- 1] Asthma Genome Research Center, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea [2] Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Y H Kim
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - S T Uh
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - B W Choi
- Department of Internal Medicine, Chung-Ang University Yongsan Hospital, Seoul, Republic of Korea
| | - M K Kim
- Division of Internal Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - I S Choi
- Department of Allergy, Chonnam National University, Gwangju, Republic of Korea
| | - B L Park
- Department of Genetic Epidemiology, SNP Genetics Incorporation, Seoul, Republic of Korea
| | - H D Shin
- 1] Department of Genetic Epidemiology, SNP Genetics Incorporation, Seoul, Republic of Korea [2] Department of Life Science, Sogang University, Seoul, Republic of Korea
| | - C S Park
- 1] Asthma Genome Research Center, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea [2] Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
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Jung KH, Kang SH, Kang MK, Kim S, Kim HK, Kim YH, Ho Lee G, Shim GB, Jung JC, Chang Y, Kim TJ. Synthesis and Structure-Activity Relationships of Gadolinium Complexes of DO3A-Benzothiazole Conjugates as Potential Theranostic Agents. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201403123] [Citation(s) in RCA: 3] [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: 11/08/2022]
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Kim SS, Jang HJ, Oh MY, Eom DW, Kang KS, Kim YJ, Lee JH, Ham JY, Choi SY, Wee YM, Kim YH, Han DJ. Ginsenoside Rg3 enhances islet cell function and attenuates apoptosis in mouse islets. Transplant Proc 2015; 46:1150-5. [PMID: 24815149 DOI: 10.1016/j.transproceed.2013.12.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 12/01/2013] [Accepted: 12/11/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND The transplantation of isolated islets is thought to be an attractive approach for curative treatment of diabetes mellitus. Panax ginseng has been used in oriental countries for its pharmacologic effects, such as antidiabetic and antiinflammatory activities. 20(S)-ginsenoside Rg3 (Rg3), an active ingredient of ginseng saponins, has been reported to enhance insulin secretion-stimulating and antiapoptotic activities in pancreatic beta cells. We performed this study to examine the hypothesis that preoperative Rg3 administration can enhance islet cell function and antiapoptosis before islet transplantation. METHODS Balb/c mice were randomly divided into 2 groups according to the administration of Rg3 after islet isolation. Mouse islets were cultured in medium supplemented with or without Rg3. In vitro, islet viability and function were assessed. After treatment of islets with a cytokine cocktail (tumor necrosis factor α, interferon-γ, and interleukin-1β), cell viability, function, and apoptosis were assessed. RESULTS Cell viability was similar between the 2 groups. Islets cultured in medium supplemented with Rg3 showed 2.3-fold higher glucose-induced insulin secretion than islets cultured in medium without Rg3. After treatment with a cytokine cocktail, glucose-induced insulin release, total insulin content of islets, and apoptosis were significantly improved in Rg3-treated islets compared with cytokine-treated islets. Cytokine-treated islets produced significantly higher levels of nitric oxide (NO) than islets treated with Rg3. CONCLUSIONS These results suggest that preoperative Rg3 administration enhanced islet function before islet transplantation and attenuated both cytokine-induced damage associated with NO production and apoptosis. Rg3 administration might be a prospective management to enhanced islet function and ameliorate early inflammation after transplantation.
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Affiliation(s)
- S S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - H J Jang
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea.
| | - M Y Oh
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - D W Eom
- Department of Pathology, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - K S Kang
- College of Korean Medicine, Gachon University, Seongnam, South Korea
| | - Y J Kim
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - J H Lee
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - J Y Ham
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - S Y Choi
- Asan Medical Center, Seoul, South Korea
| | - Y M Wee
- Asan Medical Center, Seoul, South Korea
| | - Y H Kim
- Asan Medical Center, Seoul, South Korea
| | - D J Han
- Asan Medical Center, Seoul, South Korea
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Kang J, Park HM, Kim YW, Kim YH, Varghese S, Seok HK, Kim YG, Kim SH. Control of mesenchymal stem cell phenotype and differentiation depending on cell adhesion mechanism. Eur Cell Mater 2014; 28:387-403. [PMID: 25422949 DOI: 10.22203/ecm.v028a27] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Control of cell-matrix adhesion has become an important issue in the regulation of stem cell function. In this study, a maltose-binding protein (MBP)-linked basic fibroblast growth factor (FGF2)-immobilised polystyrene surface (PS-MBP-FGF2) was applied as an artificial matrix to regulate integrin-mediated signalling. We sought to characterise human mesenchymal-stem cell (hMSC) behaviour in response to two different mechanisms of cell adhesion; (i) FGF2-heparan sulphate proteoglycan (HSPG)-mediated adhesion vs. (ii) fibronectin (FN)-integrin-mediated adhesion. Heparin inhibited hMSC adhesion to PS-MBP-FGF2 but not to FN-coated surface. The phosphorylation of focal adhesion kinase, cytoskeletal re-organisation, and cell proliferation were restricted in hMSCs adhering to PS-MBP-FGF2 compared to FN-coated surface. Expression of MSC markers, such as CD105, CD90 and CD166, decreased in hMSCs expanded on PS-MBP-FGF2 compared to expression in cells expanded on FN-coated surface. hMSCs that were expanded on FN-coated surface differentiated into osteogenic and adipogenic cells more readily than those that were expanded on PS-MBP-FGF2. Furthermore, we characterised the N-linked glycan structures of hMSCs depending on the cell adhesion mechanism using mass spectrometry (MS)-based quantitative techniques. MS analysis revealed that 2,3-sialylated glycans, a potential marker of stem cell function, were more abundant on hMSCs expanded on FN-coated surface than on those expanded on PS-MBP-FGF2. Thus, the differentiation potential of hMSCs is controlled by the type of adhesion substrate that might provide an idea for the design of biomaterials to control stem cell fate. Elucidation of the glycan structure on the cell membrane may help characterise hMSC function.
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Affiliation(s)
- J Kang
- Center for Biomaterials, Medical Engineering Institute, Korea Institute of Science and Technology, Seoul 136-79, Republic of
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Jo YJ, Kim YH, Jo YH, Seong JG, Chang SY, Van Tyne CJ, Lee WH. Microporous Ti implant compact coated with hydroxyapatite produced by electro-discharge-sintering and electrostatic-spray-deposition. J Nanosci Nanotechnol 2014; 14:8439-8444. [PMID: 25958542 DOI: 10.1166/jnn.2014.9933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A single pulse of 1.5 kJ/0.7 g of atomized spherical Ti powder from 300 μF capacitor was applied to produce the porous-surfaced Ti implant compact by electro-discharge-sintering (EDS). A solid core surrounded by porous layer was self-consolidated by a discharge in the middle of the compact in 122 μsec. Average pore size, porosity, and compressive yield strength of EDS Ti compact were estimated to be about 68.2 μm, 25.5%, and 266.4 MPa, respectively. Coatings with hydroxyapatite (HAp) on the Ti compact were conducted by electrostatic-spray-deposition (ESD) method. As-deposited HAp coating was in the form of porous structure and consisted of HAp particles which were uniformly distributed on the Ti porous structure. By heat-treatment at 700 degrees C, HAp particles were agglomerated each other and melted to form a highly smooth and homogeneous HAp thin film consisted of equiaxed nano-scaled grains. Porous-surfaced Ti implant compacts coated with highly crystalline apatite phase were successfully obtained by using the EDS and ESD techniques.
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Herrmann HW, Kim YH, Young CS, Fatherley VE, Lopez FE, Oertel JA, Malone RM, Rubery MS, Horsfield CJ, Stoeffl W, Zylstra AB, Shmayda WT, Batha SH. Extended performance gas Cherenkov detector for gamma-ray detection in high-energy density experiments. Rev Sci Instrum 2014; 85:11E124. [PMID: 25430303 DOI: 10.1063/1.4892553] [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] [Indexed: 06/04/2023]
Abstract
A new Gas Cherenkov Detector (GCD) with low-energy threshold and high sensitivity, currently known as Super GCD (or GCD-3 at OMEGA), is being developed for use at the OMEGA Laser Facility and the National Ignition Facility (NIF). Super GCD is designed to be pressurized to ≤400 psi (absolute) and uses all metal seals to allow the use of fluorinated gases inside the target chamber. This will allow the gamma energy threshold to be run as low at 1.8 MeV with 400 psi (absolute) of C2F6, opening up a new portion of the gamma ray spectrum. Super GCD operating at 20 cm from TCC will be ∼400 × more efficient at detecting DT fusion gammas at 16.7 MeV than the Gamma Reaction History diagnostic at NIF (GRH-6m) when operated at their minimum thresholds.
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Affiliation(s)
- H W Herrmann
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Y H Kim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C S Young
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - V E Fatherley
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - F E Lopez
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J A Oertel
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R M Malone
- National Security Technologies, LLC, Los Alamos, New Mexico 87544, USA
| | - M S Rubery
- Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom
| | - C J Horsfield
- Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom
| | - W Stoeffl
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A B Zylstra
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W T Shmayda
- Laboratory for Laser Energetics, Rochester, New York 14623, USA
| | - S H Batha
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Affiliation(s)
- D J Park
- Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
| | - Y H Kim
- Seoul National University, Seoul, South Korea
| | - E J Kim
- Graduate School of Public Health, Seoul National University, Seoul, South Korea
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134
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Maderich V, Jung KT, Bezhenar R, de With G, Qiao F, Casacuberta N, Masque P, Kim YH. Dispersion and fate of ⁹⁰Sr in the Northwestern Pacific and adjacent seas: global fallout and the Fukushima Dai-ichi accident. Sci Total Environ 2014; 494-495:261-271. [PMID: 25058893 DOI: 10.1016/j.scitotenv.2014.06.136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 06/28/2014] [Accepted: 06/28/2014] [Indexed: 06/03/2023]
Abstract
The 3D compartment model POSEIDON-R was applied to the Northwestern Pacific and adjacent seas to simulate the transport and fate of (90)Sr in the period 1945-2010 and to perform a radiological assessment on the releases of (90)Sr due to the Fukushima Dai-ichi nuclear accident for the period 2011-2040. The contamination due to runoff of (90)Sr from terrestrial surfaces was taken into account using a generic predictive model. A dynamical food-chain model describes the transfer of (90)Sr to phytoplankton, zooplankton, molluscs, crustaceans, piscivorous and non-piscivorous fishes. Results of the simulations were compared with observation data on (90)Sr for the period 1955-2010 and the budget of (90)Sr activity was estimated. It was found that in the East China Sea and Yellow Sea the riverine influx was 1.5% of the ocean influx and it was important only locally. Calculated concentrations of (90)Sr in water, bottom sediment and marine organisms before and after the Fukushima Dai-ichi accident are in good agreement with available experimental measurements. The concentration of (90)Sr in seawater would return to the background levels within one year after leakages were stopped. The model predicts that the concentration of (90)Sr in fish after the Fukushima Dai-ichi accident shall return to the background concentrations only 2 years later due to the delay of the transfer throughout the food web and specific accumulation of (90)Sr. The contribution of (90)Sr to the maximal dose rate due to the FDNPP accident was three orders of magnitude less than that due to (137)Cs, and thus well below the maximum effective dose limits for the public.
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Affiliation(s)
- V Maderich
- Institute of Mathematical Machine and System Problems, Glushkov av., 42, Kiev 03187, Ukraine.
| | - K T Jung
- Korea Institute of Ocean Science and Technology, 787, Haean-ro, Ansan 426-744, Republic of Korea.
| | - R Bezhenar
- Ukrainian Center of Water and Environmental Projects, Glushkov av., 42, Kiev 03187, Ukraine.
| | - G de With
- NRG, Utrechtseweg 310, 6800 ES Arnhem, The Netherlands.
| | - F Qiao
- First Institute of Oceanography, 6 Xianxialing Road, Qingdao 266061, China.
| | - N Casacuberta
- Laboratory of Ion Beam Physics, ETH-Zurich, Schafmattstrasse 20, 8093 Zurich, Switzerland.
| | - P Masque
- Institut de Ciència i Tecnologia Ambientals & Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
| | - Y H Kim
- Korea Institute of Ocean Science and Technology, 787, Haean-ro, Ansan 426-744, Republic of Korea.
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135
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Shon JH, Kim N, Park SJ, Oh MK, Kim EY, Lee SH, Kim YH, Shin JG. Effect of renal impairment and haemodialysis on the pharmacokinetics of gemigliptin (LC15-0444). Diabetes Obes Metab 2014; 16:1028-31. [PMID: 24641348 DOI: 10.1111/dom.12292] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/13/2014] [Accepted: 03/08/2014] [Indexed: 12/19/2022]
Abstract
This study evaluated the effects of renal impairment (RI) and haemodialysis (HD) on the pharmacokinetics of gemigliptin, a novel dipeptidyl peptidase-4 (DPP-4) inhibitor. After a 100 mg administration to subjects with normal renal function (n = 23) or RI (n = 24), plasma, urine or dialysate samples were analysed. Control subjects were matched to patients based on age, gender and body mass index. Patients with mild, moderate, severe RI and end-stage renal disease (ESRD) showed 1.20, 2.04, 1.50 and 1.66-fold (1.10, 1.49, 1.22 and 1.21-fold) increase of mean area under the time-plasma concentration curve from 0 to infinity (AUCinf) [maximum plasma concentration (Cmax)] of gemigliptin, respectively. Pharmacokinetics of gemigliptin was comparable between HD and non-HD periods in ESRD patients. Less than 4% of the dose was removed by 4 h HD. RI appeared to have modest effect on the gemigliptin disposition. No dose adjustment in patients with RI is proposed on the basis of exposure-response relationship. Impact of HD on the removal of gemigliptin was negligible.
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Affiliation(s)
- J H Shon
- Department of Pharmacology, Inje University College of Medicine, Busan, South Korea; Department of Clinical Pharmacology and Clinical Trial Center, Busan Paik Hospital, Busan, South Korea
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Abe K, Hieda K, Hiraide K, Hirano S, Kishimoto Y, Ichimura K, Kobayashi K, Moriyama S, Nakagawa K, Nakahata M, Ogawa H, Oka N, Sekiya H, Shinozaki A, Suzuki Y, Takeda A, Takachio O, Umemoto D, Yamashita M, Yang BS, Tasaka S, Liu J, Martens K, Hosokawa K, Miuchi K, Murata A, Onishi Y, Otsuka Y, Takeuchi Y, Kim YH, Lee KB, Lee MK, Lee JS, Fukuda Y, Itow Y, Masuda K, Takiya H, Uchida H, Kim NY, Kim YD, Kusaba F, Nishijima K, Fujii K, Murayama I, Nakamura S. Search for bosonic superweakly interacting massive dark matter particles with the XMASS-I detector. Phys Rev Lett 2014; 113:121301. [PMID: 25279618 DOI: 10.1103/physrevlett.113.121301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Indexed: 06/03/2023]
Abstract
Bosonic superweakly interacting massive particles (super-WIMPs) are a candidate for warm dark matter. With the absorption of such a boson by a xenon atom, these dark matter candidates would deposit an energy equivalent to their rest mass in the detector. This is the first direct detection experiment exploring the vector super-WIMPs in the mass range between 40 and 120 keV. With the use of 165.9 day of data, no significant excess above background was observed in the fiducial mass of 41 kg. The present limit for the vector super-WIMPs excludes the possibility that such particles constitute all of dark matter. The absence of a signal also provides the most stringent direct constraint on the coupling constant of pseudoscalar super-WIMPs to electrons. The unprecedented sensitivity was achieved exploiting the low background at a level 10(-4) kg-1 keVee-1 day-1 in the detector.
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Affiliation(s)
- K Abe
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Hieda
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - K Hiraide
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Hirano
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - Y Kishimoto
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Ichimura
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Kobayashi
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Moriyama
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Nakagawa
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - M Nakahata
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - H Ogawa
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - N Oka
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - H Sekiya
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - A Shinozaki
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - Y Suzuki
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - A Takeda
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - O Takachio
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - D Umemoto
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - M Yamashita
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - B S Yang
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Tasaka
- Information and Multimedia Center, Gifu University, Gifu 501-1193, Japan
| | - J Liu
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Martens
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Hosokawa
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - K Miuchi
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - A Murata
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Onishi
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Otsuka
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Takeuchi
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan and Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y H Kim
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - K B Lee
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - M K Lee
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - J S Lee
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - Y Fukuda
- Department of Physics, Miyagi University of Education, Sendai, Miyagi 980-0845, Japan
| | - Y Itow
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan and Kobayashi-Masukawa Institute for the Origin of Particles and the Universe, Nagoya University, Furu-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - K Masuda
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - H Takiya
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - H Uchida
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - N Y Kim
- Department of Physics, Sejong University, Seoul 143-747, South Korea
| | - Y D Kim
- Department of Physics, Sejong University, Seoul 143-747, South Korea
| | - F Kusaba
- Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - K Nishijima
- Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - K Fujii
- Department of Physics, Faculty of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - I Murayama
- Department of Physics, Faculty of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - S Nakamura
- Department of Physics, Faculty of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
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Dummer R, Duvic M, Scarisbrick J, Olsen EA, Rozati S, Eggmann N, Goldinger SM, Hutchinson K, Geskin L, Illidge TM, Giuliano E, Elder J, Kim YH. Final results of a multicenter phase II study of the purine nucleoside phosphorylase (PNP) inhibitor forodesine in patients with advanced cutaneous T-cell lymphomas (CTCL) (Mycosis fungoides and Sézary syndrome). Ann Oncol 2014; 25:1807-1812. [PMID: 24948692 DOI: 10.1093/annonc/mdu231] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [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: 08/08/2023] Open
Abstract
BACKGROUND Forodesine is a potent inhibitor of purine nucleoside phosphorylase (PNP) that leads to intracellular accumulation of deoxyguanosine triphosphate (dGTP) in T and B cells, resulting in apoptosis. Forodesine has demonstrated impressive antitumor activity in early phase clinical trials in cutaneous T-cell lymphoma (CTCL). PATIENTS AND METHODS In this phase II study, patients with CTCL who had already failed three or more systemic therapies were recruited. We investigated the response rate, safety and tolerability of oral forodesine treatment in subjects with cutaneous manifestations of CTCL, stages IB, IIA, IIB, III and IVA. The safety population encompassing all stages was used for analysis of accountability, demographics and safety. The efficacy population differed from the safety population by exclusion of stage IB and IIA patients. RESULTS All 144 patients had performance status 0-2. The median duration of CTCL from diagnosis was 53 months (5-516 months). The median number of pretreatments was 4 (range: 3-15). No complete remissions were observed. In the efficacy group of patients, 11% achieved partial remission and 50% had stable disease. The median time to response was 56 days and the median duration of response was 191 days. A total of 96% of all treated patients reported one or more adverse events (AEs) and 33% reported a serious AE. The majority of AEs were classified as mild or moderate in severity. The most commonly reported AEs (>10%) were peripheral edema, fatigue, insomnia, pruritus, diarrhea, headache and nausea. Overall eight patients died during the study: five due to sepsis and infections, one due to a second malignancy (esophageal cancer), one due to disease progression and one due to liver failure. CONCLUSION Oral forodesine at a dose of 200 mg daily is feasible and shows partial efficacy in this highly selected CTCL population and some durable responses.
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Affiliation(s)
- R Dummer
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.
| | - M Duvic
- Department of Dermatology, MD Anderson Cancer Center, Houston, USA
| | - J Scarisbrick
- Department Dermatology, Hospital Birmingham, Birmingham, UK
| | - E A Olsen
- Department of Dermatology, Duke University Medical Center, Durham, USA
| | - S Rozati
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - N Eggmann
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - S M Goldinger
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | | | - L Geskin
- Department of Dermatology, University of Pittsburgh, Pittsburgh, USA
| | - T M Illidge
- School of Cancer and Imaging Sciences, University of Manchester, Manchester, UK
| | - E Giuliano
- Clinical Development, BioCryst Pharmaceuticals, Inc., Durham
| | - J Elder
- Statistics, PharPoint Research, Inc., Chapel Hill
| | - Y H Kim
- Clinical Research, Stanford Cancer Center, Stanford, USA
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138
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Kang EJ, Jung H, Woo OH, Park KH, Woo SU, Yang DS, Kim AR, Lee JB, Kim YH, Kim JS, Seo JH. Association of aldehyde dehydrogenase 1 expression and biologically aggressive features in breast cancer. Neoplasma 2014; 61:352-62. [PMID: 24824938 DOI: 10.4149/neo_2014_045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED Aldehyde dehydrogenase 1 (ALDH1) has been regarded as a breast cancer stem cell marker. Several studies have reported that ALDH1 expression is associated with poor prognosis in breast cancer. We aimed, therefore, to determine the prognostic value of ALDH1 expression and its association with several biomarkers in breast cancer tissue using immunohistochemistry. Furthermore, we investigated the characteristics of and differences between cellular and stromal expression of ALDH1. We performed tissue microarray (TMA) analysis of 425 breast cancer tissue samples collected during surgery. Immunohistochemical staining was then performed to measure the expression of ALDH1 and other breast cancer biomarkers. Statistical analysis of the relationship between ALDH1 expression and clinicopathologic characteristics was performed for 390 TMA samples. We found that ALDH1 was expressed in 71 cases (18.2%) in the tumor cells and/or stroma. Of these cases, 38 (9.7%) showed ALDH1 expression in tumor cells and 38 (9.7%) showed ALDH1 expression in the stroma. ALDH1 expression was significantly associated with markers of a poor prognosis, such as young age, estrogen receptor negativity, progesterone receptor negativity, a high histological grade, and a high Ki-67 index. However, ALDH1 expression was not associated with p53, transforming growth factor-beta, Gli-1, YKL-40, or sonic hedgehog expression status. With regard to the expression site, the clinical characteristics did not differ between cases of cellular expression and those of stromal expression. However, ALDH1 expression in tumor cells was correlated with hormone receptor status, histological grade, molecular subtype, epidermal growth factor receptor expression status, and cytokeratin 5/6 expression status while stromal expression of ALDH1 was only correlated with hormone receptor status. Overall, these findings suggest that ALDH1 expression in tumor tissue is associated with a biologically aggressive phenotype. KEYWORDS ALDH1, biologically aggressive, breast cancer.
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139
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Lim SY, Kim YH, Kim CH, Cho MK, Kim JW, Kang WD, Kim SM, Cho HY, Ahn KY, Lee KH, Song TB. The effect of a Foley catheter balloon on cervical ripening. J OBSTET GYNAECOL 2014; 33:830-8. [PMID: 24219725 DOI: 10.3109/01443615.2013.831043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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]
Abstract
The Foley catheter balloon may affect cervical ripening through changes in biochemical mediators by immunoassay and immunohistochemistry, when it is used for pre-induction cervical ripening. The aim of the study was to evaluate the changes in the biochemical mediators from the extra-amniotic space and immunohistochemistry in ripened cervical tissue after the insertion of a Foley catheter balloon (FCB) for pre-induction cervical ripening. A total of 18 pregnant women with a Bishop's score < 6, who were undergoing labour induction, were evaluated in this prospective study. The FCB was irrigated with 10 ml of phosphate buffered saline and the irrigant was collected 0, 2, 4 and 8 h after placement of the FCB or until spontaneous expulsion of the FCB occurred. Irrigant specimens were also collected from 10 spontaneous labouring (SL) women in the active phase of labour. The levels of interleukin (IL)-6, IL-8, matrix metalloproteinase (MMP)-8 and NO were measured. Cervical specimens were obtained from 12 women, including four undergoing induction; four SL and four non-pregnant (NP) women. Immunohistochemical staining was performed to localise hyaluronic acid synthase (HAS)-1, IL-6, IL-8, MMP-8, endothelial nitric oxide synthase (eNOS) and inducible NOS (iNOS). Results showed that the levels of IL-6, IL-8, and MMP-8 significantly increased over time in FCB group (p < 0.01). In the immunohistochemical analysis of cervical tissues, immunoreactivity of HAS-1 in the after FCB group was stronger than any of the other groups. The protein expressions of IL-6, IL-8, MMP-8, eNOS and iNOS were more prominent in the after FCB and SL groups than in the NP and the before FCB groups. iNOS was only observed in the after FCB and SL groups. It was concluded that FCB may affect cervical ripening through changes in biochemical mediators by immunoassay and immunohistochemistry, when it is used for pre-induction cervical ripening.
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Affiliation(s)
- S Y Lim
- Department of Obstetrics and Gynecology, Gachon University Gil Medical Center , Incheon
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140
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Abstract
BACKGROUND A number of obesity studies have been focused on identifying the relationships between socioeconomic status and physical activity involvement. In behavioral medicine, the limited data are available on obese people's physical activity and its related psychological predictors based on psychological theories. PURPOSE To identify the differences in physical activity and its related motivational attributes among normal weight, overweight, and obese adolescents and to find the effect of body mass index (BMI) and the Self-Determination Theory (SDT) constructs in predicting physical activity. METHOD One thousand seventy-one students ranging from seventh to ninth grades were randomly selected from three junior high schools in Seoul (359 normal weight students, 468 overweight students, and 244 obese students). A Korean version of Behavioral Regulation in Exercise Questionnaire-2 and Leisure Time Exercise Questionnaire were applied to measure the participants' motivational attributes and physical activity. RESULTS Overweight and obese adolescents showed higher scores on amotivation and externally motivated regulations for physical activity than their normal weight counterparts. Internal regulation was more significant for physical activity in normal weight adolescent. However, there was no difference in physical activity among the three groups. Additionally, the findings identified that BMI and the SDT constructs were significant to explain physical activity. CONCLUSION This study offers fundamental knowledge in gaining a clearer understanding of the types of motivation most likely to contribute to the initiation and promotion of physical activity in overweight and obese adolescents.
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Affiliation(s)
- J Hwang
- Department of Physical Education, Seoul National University, Shinlim-dong, Kwanak-gu, Seoul, South Korea.
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141
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Dreischarf M, Zander T, Shirazi-Adl A, Puttlitz CM, Adam CJ, Chen CS, Goel VK, Kiapour A, Kim YH, Labus KM, Little JP, Park WM, Wang YH, Wilke HJ, Rohlmann A, Schmidt H. Comparison of eight published static finite element models of the intact lumbar spine: predictive power of models improves when combined together. J Biomech 2014; 47:1757-66. [PMID: 24767702 DOI: 10.1016/j.jbiomech.2014.04.002] [Citation(s) in RCA: 225] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/01/2014] [Accepted: 04/01/2014] [Indexed: 10/25/2022]
Abstract
Finite element (FE) model studies have made important contributions to our understanding of functional biomechanics of the lumbar spine. However, if a model is used to answer clinical and biomechanical questions over a certain population, their inherently large inter-subject variability has to be considered. Current FE model studies, however, generally account only for a single distinct spinal geometry with one set of material properties. This raises questions concerning their predictive power, their range of results and on their agreement with in vitro and in vivo values. Eight well-established FE models of the lumbar spine (L1-5) of different research centers around the globe were subjected to pure and combined loading modes and compared to in vitro and in vivo measurements for intervertebral rotations, disc pressures and facet joint forces. Under pure moment loading, the predicted L1-5 rotations of almost all models fell within the reported in vitro ranges, and their median values differed on average by only 2° for flexion-extension, 1° for lateral bending and 5° for axial rotation. Predicted median facet joint forces and disc pressures were also in good agreement with published median in vitro values. However, the ranges of predictions were larger and exceeded those reported in vitro, especially for the facet joint forces. For all combined loading modes, except for flexion, predicted median segmental intervertebral rotations and disc pressures were in good agreement with measured in vivo values. In light of high inter-subject variability, the generalization of results of a single model to a population remains a concern. This study demonstrated that the pooled median of individual model results, similar to a probabilistic approach, can be used as an improved predictive tool in order to estimate the response of the lumbar spine.
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Affiliation(s)
- M Dreischarf
- Julius Wolff Institute, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.
| | - T Zander
- Julius Wolff Institute, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - A Shirazi-Adl
- Division of Applied Mechanics, Department of Mechanical Engineering, École Polytechnique, Montréal, Quebec, Canada
| | - C M Puttlitz
- Orthopaedic Bioengineering Research Laboratory, Colorado State University, USA
| | - C J Adam
- Paediatric Spine Research Group, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - C S Chen
- Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan
| | - V K Goel
- Departments of Bioengineering and Orthopaedic Surgery, Colleges of Engineering and Medicine, University of Toledo, USA
| | - A Kiapour
- Departments of Bioengineering and Orthopaedic Surgery, Colleges of Engineering and Medicine, University of Toledo, USA
| | - Y H Kim
- Department of Mechanical Engineering, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - K M Labus
- Orthopaedic Bioengineering Research Laboratory, Colorado State University, USA
| | - J P Little
- Paediatric Spine Research Group, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - W M Park
- Department of Mechanical Engineering, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Y H Wang
- Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan
| | - H J Wilke
- Institute of Orthopaedic Research and Biomechanics, Ulm, Germany
| | - A Rohlmann
- Julius Wolff Institute, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - H Schmidt
- Julius Wolff Institute, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; Institute of Orthopaedic Research and Biomechanics, Ulm, Germany
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142
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Nam S, Chang HR, Kim KT, Kook MC, Hong D, Kwon CH, Jung HR, Park HS, Powis G, Liang H, Park T, Kim YH. PATHOME: an algorithm for accurately detecting differentially expressed subpathways. Oncogene 2014; 33:4941-51. [PMID: 24681952 PMCID: PMC4182295 DOI: 10.1038/onc.2014.80] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [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: 09/24/2013] [Revised: 02/11/2014] [Accepted: 02/14/2014] [Indexed: 12/18/2022]
Abstract
The translation of high-throughput gene expression data into biologically meaningful information remains a bottleneck. We developed a novel computational algorithm, PATHOME, for detecting differentially expressed biological pathways. This algorithm employs straightforward statistical tests to evaluate the significance of differential expression patterns along subpathways. Applying it to gene expression data sets of gastric cancer (GC), we compared its performance with those of other leading programs. Based on a literature-driven reference set, PATHOME showed greater consistency in identifying known cancer-related pathways. For the WNT pathway uniquely identified by PATHOME, we validated its involvement in gastric carcinogenesis through experimental perturbation of both cell lines and animal models. We identified HNF4α-WNT5A regulation in the cross-talk between the AMPK metabolic pathway and the WNT signaling pathway, and further identified WNT5A as a potential therapeutic target for GC. We have demonstrated PATHOME to be a powerful tool, with improved sensitivity for identifying disease-related dysregulated pathways.
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Affiliation(s)
- S Nam
- Cancer Genomics Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - H R Chang
- New Experimental Therapeutics Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - K-T Kim
- Molecular Epidemiology Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - M-C Kook
- Department of Pathology, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - D Hong
- Cancer Genomics Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - C H Kwon
- Cancer Genomics Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - H R Jung
- New Experimental Therapeutics Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - H S Park
- New Experimental Therapeutics Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
| | - G Powis
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
| | - H Liang
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - T Park
- Department of Statistics, Seoul National University, Kwanak-gu Seoul, Republic of Korea
| | - Y H Kim
- New Experimental Therapeutics Branch, National Cancer Center of Korea, Goyang-si Gyeonggi-do, Republic of Korea
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143
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Park SW, Lee EH, Lee EJ, Kim HJ, Bae DJ, Han S, Kim D, Jang AS, Uh ST, Kim YH, Erle DJ, Park CS. Apolipoprotein A1 potentiates lipoxin A4 synthesis and recovery of allergen-induced disrupted tight junctions in the airway epithelium. Clin Exp Allergy 2014; 43:914-27. [PMID: 23889245 DOI: 10.1111/cea.12143] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 04/21/2013] [Accepted: 04/29/2013] [Indexed: 01/01/2023]
Abstract
BACKGROUND Asthma is characterized by chronic airway inflammation triggered by various allergens in the environment. Defects in the bronchial epithelial interface with the external environment are the hallmark of asthma. Apolipoprotein A-1 (ApoA1) or ApoA1 mimetics have demonstrated anti-inflammatory activity and preventive effects in mouse models. OBJECTIVE We investigated airway levels of ApoA1 in asthmatics and the possible role of ApoA1 in protection of the bronchial epithelium and in resolution of inflammation in cellular and animal models of asthma. METHODS ApoA1 levels were measured in bronchoalveolar lavage fluid (BALF) from asthmatics and healthy controls. With treatment of ApoA1, mouse model of house dust mite (HDM)-driven asthma and cultured primary bronchial epithelial cells obtained from asthmatics were examined. Tight junction (TJ) expression in the bronchial epithelial cells was assessed by using confocal microscopy and immunoblot. RESULTS Asthmatics showed significantly lower ApoA1 levels in bronchoalveolar lavage fluid than did healthy controls. Local ApoA1 treatment significantly decreased lung IL-25, IL-33, and thymic stromal lymphopoietin levels in HDM-challenged mice and inhibited allergen-induced production of these cytokines in cultured primary bronchial epithelial cells. ApoA1 promoted recovery of disrupted TJ proteins zonula occludens-1 and occludin in cultured primary bronchial epithelium obtained from asthmatics. ApoA1-induced increases in the TJ proteins were dependent on increased production of lipoxin A4 (LX A4). CONCLUSIONS AND CLINICAL RELEVANCE ApoA1 enhances resolution of allergen-induced airway inflammation through promoting recovery of damaged TJs in the bronchial epithelium. ApoA1 could be a therapeutic strategy in chronic airway inflammatory diseases that are associated with a defective epithelial barrier, including asthma.
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Affiliation(s)
- S-W Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Gyeonggi-Do, South Korea.
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144
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Baek SJ, Nam GE, Han KD, Choi SW, Jung SW, Bok AR, Kim YH, Lee KS, Han BD, Kim DH. Sarcopenia and sarcopenic obesity and their association with dyslipidemia in Korean elderly men: the 2008-2010 Korea National Health and Nutrition Examination Survey. J Endocrinol Invest 2014; 37:247-60. [PMID: 24615361 DOI: 10.1007/s40618-013-0011-3] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Accepted: 11/17/2013] [Indexed: 12/19/2022]
Abstract
BACKGROUND Recently, aging has been shown to be associated with sarcopenic obesity (SO), of which decreased muscle mass and increased fat mass are features. Sarcopenia and obesity alone are known to be associated with abnormal lipid metabolism. However, it remains unclear whether SO has greater adverse effects on dyslipidemia than on sarcopenia or obesity alone. AIM We aimed to investigate the association between SO and dyslipidemia in elderly Koreans. SUBJECTS AND METHODS This study was based on data collected during the 2008-2010 Korea National Health and Nutrition Examination Survey. We included 1,466 men and 2,017 women aged 65 years and over. Sarcopenia was indicated in participants with height- or weight-adjusted appendicular skeletal muscle that was 1 standard deviation below the sex-specific mean for the young reference group, and obesity was defined as a body mass index ≥ 25 kg/m(2). Dyslipidemia was defined according to the National Cholesterol Education Program-Adult Treatment Panel III. RESULTS After adjusting for confounding factors, the SO group had a higher risk for dyslipidemia [odds ratio (OR) 2.82 (95 % confidence interval 1.76-4.51)] than the obese group [2.12 (1.11-4.07)] and sarcopenic group [1.46 (1.01-2.11)] (p < 0.001) only in men. Furthermore, the SO group in men had the highest OR for hypercholesterolemia, hypertriglyceridemia, hypo-high-density lipoprotein cholesterolemia, hyper-low-density lipoprotein cholesterolemia, and a high ratio of triglyceride to high-density lipoprotein cholesterol even after further adjustments. CONCLUSIONS In Korean elderly men, SO was associated with an increased risk for dyslipidemia compared with sarcopenia or obesity alone.
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Affiliation(s)
- S J Baek
- Department of Family Medicine, Korea University College of Medicine, Seoul, South Korea
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145
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Kim SH, Kim JE, Kim YH, Kang BC, Heo SB, Kim CK, Park WK. An assessment of oropharyngeal airway position using a fibreoptic bronchoscope. Anaesthesia 2014; 69:53-7. [PMID: 24320857 DOI: 10.1111/anae.12502] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2013] [Indexed: 11/28/2022]
Abstract
Selecting the appropriate oropharyngeal airway for safe and effective airway management is important in clinical practice. In this prospective observational study, we examined the position of the distal end of oropharyngeal airways using a fibreoptic bronchoscope. We enrolled 149 adults (72 men and 77 women). The correct airway size was determined by inserting four adult sizes Guedel airway (Hudson RCI; Teleflex Medical, Research Triangle, Park, NC, USA) (sizes 8, 9, 10 and 11) sequentially in anaesthetised patients. The 'best fit' airway was size 10 in 45 (62%) men, and size 9 in 58 (75%) women. However, when these airways were inserted, the distal end of the airway either touched or passed beyond the epiglottis tip in 20 (27%) men and six (8%) women, respectively. When a size-9 airway was inserted in men and a size-8 airway inserted in women, the distal ends were obstructed by the tongue in three (2%) patients. In conclusion, a size-9 airway in men and a size-8 airway in women are the most acceptable sizes for adults of average height.
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Affiliation(s)
- S H Kim
- Department of Anaesthesiology and Pain Medicine, Anaesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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146
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Mukai M, Hirayama Y, Jeong SC, Imai N, Ishiyama H, Miyatake H, Oyaizu M, Watanabe YX, Kim YH. In-gas-cell laser ion source for KEK isotope separation system. Rev Sci Instrum 2014; 85:02B906. [PMID: 24593611 DOI: 10.1063/1.4827112] [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] [Indexed: 06/03/2023]
Abstract
The KEK isotope separation system (KISS) is an element-selective isotope separator under development at RIKEN. The in-gas-cell laser ion source is a critical component of the KISS, a gas cell filled with argon gas of 50 kPa enclosed in a vacuum chamber. In the gas cell, nuclear reaction products are stopped (i.e., thermalized and neutralized) and transported by a laminar flow of argon to the ionization region just upstream of the gas outlet, and thereby an element of interest among those reaction products is selectively ionized by two-color resonant laser irradiation. Recently, we succeeded to extract laser-ionized Fe ions by injecting an energetic Fe beam into the gas cell. Recent off- and on-line test results were presented and discussed.
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Affiliation(s)
- M Mukai
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - Y Hirayama
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - S C Jeong
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - N Imai
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - H Ishiyama
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - H Miyatake
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - M Oyaizu
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - Y X Watanabe
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
| | - Y H Kim
- High Energy Accelerator Res Org. (KEK), Ibaraki 305-0801, Japan
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147
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Chung G, Im ST, Kim YH, Jung SJ, Rhyu MR, Oh SB. Activation of transient receptor potential ankyrin 1 by eugenol. Neuroscience 2013; 261:153-60. [PMID: 24384226 DOI: 10.1016/j.neuroscience.2013.12.047] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [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] [Received: 10/13/2013] [Revised: 12/14/2013] [Accepted: 12/20/2013] [Indexed: 12/29/2022]
Abstract
Eugenol is a bioactive plant extract used as an analgesic agent in dentistry. The structural similarity of eugenol to cinnamaldehyde, an active ligand for transient receptor potential ankyrin 1 (TRPA1), suggests that eugenol might produce its effect via TRPA1, in addition to TRPV1 as we reported previously. In this study, we investigated the effect of eugenol on TRPA1, by fura-2-based calcium imaging and patch clamp recording in trigeminal ganglion neurons and in a heterologous expression system. As the result, eugenol induced robust calcium responses in rat trigeminal ganglion neurons that responded to a specific TRPA1 agonist, allyl isothiocyanate (AITC), and not to capsaicin. Capsazepine, a TRPV1 antagonist failed to inhibit eugenol-induced calcium responses in AITC-responding neurons. In addition, eugenol response was observed in trigeminal ganglion neurons from TRPV1 knockout mice and human embryonic kidney 293 cell lines that express human TRPA1, which was inhibited by TRPA1-specific antagonist HC-030031. Eugenol-evoked TRPA1 single channel activity and eugenol-induced TRPA1 currents were dose-dependent with EC50 of 261.5μM. In summary, these results demonstrate that the activation of TRPA1 might account for another molecular mechanism underlying the pharmacological action of eugenol.
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Affiliation(s)
- G Chung
- Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea; Pain Cognitive Function Research Center, Seoul National University, Seoul, Republic of Korea
| | - S T Im
- Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Y H Kim
- Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea; Pain Cognitive Function Research Center, Seoul National University, Seoul, Republic of Korea
| | - S J Jung
- Pain Cognitive Function Research Center, Seoul National University, Seoul, Republic of Korea; Department of Physiology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - M-R Rhyu
- Division of Metabolism and Functionality Research, Korea Food Research Institute, Sungnam, Republic of Korea
| | - S B Oh
- Dental Research Institute and Department of Neurobiology and Physiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea; Pain Cognitive Function Research Center, Seoul National University, Seoul, Republic of Korea; Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea.
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148
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Yoo YJ, Kim YJ, Van Tuong P, Rhee JY, Kim KW, Jang WH, Kim YH, Cheong H, Lee Y. Polarization-independent dual-band perfect absorber utilizing multiple magnetic resonances. Opt Express 2013; 21:32484-32490. [PMID: 24514841 DOI: 10.1364/oe.21.032484] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We propose a dual-band metamaterial perfect absorber at microwave frequencies. Using a planar metamaterial, which consists of periodic metallic donut-shape meta-atoms at the front separated from the metallic plane at the back by a dielectric layer, we demonstrate the multi-plasmonic high-frequency perfect absorptions induced by the third-harmonic as well as the fundamental magnetic resonances. The origin of the induced multi-plasmonic perfect absorption was elucidated. It was also found that the perfect absorptions at dual peaks are persistent with varying polarization.
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149
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Kim EJ, Kim YH, Kang SH, Lee KW, Park YJ. In vitro effects of preservative-free and preserved prostaglandin analogs on primary cultured human conjunctival fibroblast cells. Korean J Ophthalmol 2013; 27:446-53. [PMID: 24311931 PMCID: PMC3849309 DOI: 10.3341/kjo.2013.27.6.446] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 05/28/2013] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Long-term use of topical medication is needed for glaucoma treatment. One of the most commonly prescribed classes of hypotensive agents are prostaglandin analogs (PGs) used as both first-line monotherapy; as well as in combination therapy with other hypotensive agents. Several side effects of eye drops can be caused by preservatives. The purpose of this study was to evaluate the effects of PGs with varying concentrations of benzalkonium chloride (BAC), alternative preservatives, or no preservatives on human conjunctival fibroblast cells. METHODS Primary human conjunctival fibroblast cells were used in these experiments. Cells were exposed to the following drugs: BAC at different concentrations, bimatoprost 0.01% (with BAC 0.02%), latanoprost 0.005% (with BAC 0.02%), tafluprost 0.0015% with/without 0.001% BAC and travoprost 0.004% (with 0.001% Polyquad) for 15 and 30 minutes. Cell cytotoxicity was evaluated by phase-contrast microscopy to monitor morphological changes of cells, Counting Kit-8 (CCK-8) assay to cell viability, and fluorescent activated cell sorting (FACS) analysis to measure apoptosis. RESULTS BAC caused cell shrinkage and detachment from the plate in a dose-dependent manner. Morphological changes were observed in cells treated with bimatoprost 0.01% and latanoprost 0.005%. However, mild cell shrinkage was noted in cells treated with tafluprost 0.0015%, while a non-toxic effect was noted with travoprost 0.004% and preservative-free tafluprost 0.0015%. CCK-8 assay and FACS analysis showed all groups had a significantly decreased cell viability and higher apoptosis rate compared with the control group. However, travoprost 0.004% and preservative-free tafluprost 0.0015% showed lower cytotoxicity and apoptosis rate than other drugs. CONCLUSIONS This in vitro study revealed that BAC-induced cytotoxicity is dose-dependent, although it is important to emphasize that the clinical significance of toxicity differences observed among the different PGs formulations has not yet been firmly established. Alternatively preserved or preservative-free glaucoma medications seem to be a reasonable and viable alternative to those preserved with BAC.
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Affiliation(s)
- Eun Joo Kim
- Cheil Eye Reserch Institute, Cheil Eye Hospital, Daegu, Korea
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150
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Kim HK, Kang MK, Jung KH, Kang SH, Kim YH, Jung JC, Lee GH, Chang Y, Kim TJ. Gadolinium Complex of DO3A-benzothiazole Aniline (BTA) Conjugate as a Theranostic Agent. J Med Chem 2013; 56:8104-11. [DOI: 10.1021/jm401206t] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | | | | | - Yeoun-Hee Kim
- Cheil Eye
Hospital, Cheil Eye Research Institute, 803-2 Sinam-1dong, Dong-gu, Daegu, 701-820, Korea
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