1
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Tachibana R, Abe S, Marugami M, Yamagami A, Akema R, Ohashi T, Nishida K, Nosaki S, Miyakawa T, Tanokura M, Kim JM, Seki M, Inaba T, Matsui M, Ifuku K, Kushiro T, Asami T, Nakano T. BPG4 regulates chloroplast development and homeostasis by suppressing GLK transcription factors and involving light and brassinosteroid signaling. Nat Commun 2024; 15:370. [PMID: 38191552 PMCID: PMC10774444 DOI: 10.1038/s41467-023-44492-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 12/15/2023] [Indexed: 01/10/2024] Open
Abstract
Chloroplast development adapts to the environment for performing suitable photosynthesis. Brassinosteroids (BRs), plant steroid hormones, have crucial effects on not only plant growth but also chloroplast development. However, the detailed molecular mechanisms of BR signaling in chloroplast development remain unclear. Here, we identify a regulator of chloroplast development, BPG4, involved in light and BR signaling. BPG4 interacts with GOLDEN2-LIKE (GLK) transcription factors that promote the expression of photosynthesis-associated nuclear genes (PhANGs), and suppresses their activities, thereby causing a decrease in the amounts of chlorophylls and the size of light-harvesting complexes. BPG4 expression is induced by BR deficiency and light, and is regulated by the circadian rhythm. BPG4 deficiency causes increased reactive oxygen species (ROS) generation and damage to photosynthetic activity under excessive high-light conditions. Our findings suggest that BPG4 acts as a chloroplast homeostasis factor by fine-tuning the expression of PhANGs, optimizing chloroplast development, and avoiding ROS generation.
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Affiliation(s)
- Ryo Tachibana
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Susumu Abe
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
- School of Agriculture, Meiji University, Tama-ku, Kawasaki, 214-8571, Japan
| | - Momo Marugami
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
- School of Agriculture, Meiji University, Tama-ku, Kawasaki, 214-8571, Japan
| | - Ayumi Yamagami
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Rino Akema
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takao Ohashi
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Kaisei Nishida
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Shohei Nosaki
- Faculty of Life and Environmental Sciences, Tsukuba University, 1-1-1 Tennoudai, Tsukuba-shi, 305-8572, Japan
| | - Takuya Miyakawa
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Masaru Tanokura
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Jong-Myong Kim
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
- Ac-Planta Inc., Bunkyo-ku, Tokyo, 113-0044, Japan
| | - Motoaki Seki
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
| | - Takehito Inaba
- Department of Agricultural and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki, 889-2192, Japan
| | | | - Kentaro Ifuku
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Tetsuo Kushiro
- School of Agriculture, Meiji University, Tama-ku, Kawasaki, 214-8571, Japan
| | - Tadao Asami
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takeshi Nakano
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan.
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan.
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2
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Kudo T, To TK, Kim JM. Simple and universal function of acetic acid to overcome the drought crisis. Stress Biol 2023; 3:15. [PMID: 37676400 PMCID: PMC10441936 DOI: 10.1007/s44154-023-00094-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/16/2023] [Indexed: 09/08/2023]
Abstract
Acetic acid is a simple and universal compound found in various organisms. Recently, acetic acid was found to play an essential role in conferring tolerance to water deficit stress in plants. This novel mechanism of drought stress tolerance mediated by acetic acid via networks involving phytohormones, genes, and chromatin regulation has great potential for solving the global food crisis and preventing desertification caused by global warming. We highlight the functions of acetic acid in conferring tolerance to water deficit stress.
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Affiliation(s)
| | - Taiko Kim To
- Department of Biological Sciences, The University of Tokyo, Tokyo, Japan
| | - Jong-Myong Kim
- Ac-Planta Inc, Tokyo, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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3
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Lim C, Lim B, Kil DY, Kim JM. Hepatic transcriptome profiling according to growth rate reveals acclimation in metabolic regulatory mechanisms to cyclic heat stress in broiler chickens. Poult Sci 2022; 101:102167. [PMID: 36257074 PMCID: PMC9579409 DOI: 10.1016/j.psj.2022.102167] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 07/17/2022] [Accepted: 08/24/2022] [Indexed: 11/15/2022] Open
Abstract
Climate change has numerous effects on poultry that result in welfare concerns and economic losses in agricultural industries. However, the mechanisms underlying the acclimation to heat stress in poultry have not been comprehensively defined. Therefore, identifying associated patterns of gene regulation and understanding the molecular mechanisms of acclimation to a warmer environment will provide insights into the acclimation system of broiler chickens. We profiled differentially expressed genes (DEGs) associated with differences in growth performance under heat stress conditions in the liver tissues of broilers based on RNA sequencing data. The DEGs were identified by comparison to the gene expression levels of broilers exhibiting average growth at 28 d of age (D28A) and D36A relative to those at D21A. In D36A, 507 and 312 DEGs were up- and downregulated, respectively, whereas 400 and 156 DEGs were up- and downregulated in D28A, respectively. Pathway enrichment analysis further revealed that “fatty acid degradation” and “heat shock protein expression” were upregulated in broilers exhibiting a higher growth and weight, whereas “cell cycle arrest” and “amino acid metabolism” were downregulated. Transcriptome profiling revealed that the acclimatized group supplied fat and energy from the liver to tissues through the breakdown of fatty acids. Furthermore, homeostasis was maintained via heat shock proteins and antioxidant enzymes. The characterized candidate genes and mechanisms associated with the response to heat stress might serve as a foundation for improving the ability of broilers to acclimatize under heat stress conditions.
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Affiliation(s)
- C Lim
- Department of Animal Science and Technology, Chung-Ang University, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - B Lim
- Department of Animal Science and Technology, Chung-Ang University, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - D Y Kil
- Department of Animal Science and Technology, Chung-Ang University, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - J M Kim
- Department of Animal Science and Technology, Chung-Ang University, Anseong-si, Gyeonggi-do 17546, Republic of Korea.
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4
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Vincent SA, Kim JM, Pérez-Salamó I, To TK, Torii C, Ishida J, Tanaka M, Endo TA, Bhat P, Devlin PF, Seki M, Devoto A. Jasmonates and Histone deacetylase 6 activate Arabidopsis genome-wide histone acetylation and methylation during the early acute stress response. BMC Biol 2022; 20:83. [PMID: 35399062 PMCID: PMC8996529 DOI: 10.1186/s12915-022-01273-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/07/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Jasmonates (JAs) mediate trade-off between responses to both biotic and abiotic stress and growth in plants. The Arabidopsis thaliana HISTONE DEACETYLASE 6 is part of the CORONATINE INSENSITIVE1 receptor complex, co-repressing the HDA6/COI1-dependent acetic acid-JA pathway that confers plant drought tolerance. The decrease in HDA6 binding to target DNA mirrors histone H4 acetylation (H4Ac) changes during JA-mediated drought response, and mutations in HDA6 also cause depletion in the constitutive repressive marker H3 lysine 27 trimethylation (H3K27me3). However, the genome-wide effect of HDA6 on H4Ac and much of the impact of JAs on histone modifications and chromatin remodelling remain elusive. RESULTS We performed high-throughput ChIP-Seq on the HDA6 mutant, axe1-5, and wild-type plants with or without methyl jasmonate (MeJA) treatment to assess changes in active H4ac and repressive H3K27me3 histone markers. Transcriptional regulation was investigated in parallel by microarray analysis in the same conditions. MeJA- and HDA6-dependent histone modifications on genes for specialized metabolism; linolenic acid and phenylpropanoid pathways; and abiotic and biotic stress responses were identified. H4ac and H3K27me3 enrichment also differentially affects JAs and HDA6-mediated genome integrity and gene regulatory networks, substantiating the role of HDA6 interacting with specific families of transposable elements in planta and highlighting further specificity of action as well as novel targets of HDA6 in the context of JA signalling for abiotic and biotic stress responses. CONCLUSIONS The findings demonstrate functional overlap for MeJA and HDA6 in tuning plant developmental plasticity and response to stress at the histone modification level. MeJA and HDA6, nonetheless, maintain distinct activities on histone modifications to modulate genetic variability and to allow adaptation to environmental challenges.
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Affiliation(s)
- Stacey A Vincent
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Jong-Myong Kim
- Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
- Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Present address: Ac-Planta Inc., 2-16-9 Yushima, Bunkyo-ku, Tokyo, 113-0034, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Imma Pérez-Salamó
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Taiko Kim To
- Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
- Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Present address: Department of Biological Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Chieko Torii
- Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
- Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Junko Ishida
- Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
- Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Maho Tanaka
- Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
- Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Takaho A Endo
- Bioinformatics and Systems Engineering Division, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
- Present address: Center for Integrative Medical Sciences, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
| | - Prajwal Bhat
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Paul F Devlin
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Motoaki Seki
- Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan.
- Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
| | - Alessandra Devoto
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.
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5
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Shinde KP, Lee EJ, Manawan M, Lee A, Park SY, Jo Y, Ku K, Kim JM, Park JS. Structural, magnetic, and magnetocaloric properties of R 2NiMnO 6 (R = Eu, Gd, Tb). Sci Rep 2021; 11:20206. [PMID: 34642433 PMCID: PMC8511262 DOI: 10.1038/s41598-021-99755-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/27/2021] [Indexed: 11/09/2022] Open
Abstract
The crystal structure, cryogenic magnetic properties, and magnetocaloric performance of double perovskite Eu2NiMnO6 (ENMO), Gd2NiMnO6 (GNMO), and Tb2NiMnO6 (TNMO) ceramic powder samples synthesized by solid-state method have been investigated. X-ray diffraction structural investigation reveal that all compounds crystallize in the monoclinic structure with a P21/n space group. A ferromagnetic to paramagnetic (FM-PM) second-order phase transition occurred in ENMO, GNMO, and TNMO at 143, 130, and 112 K, respectively. Maximum magnetic entropy changes and relative cooling power with a 5 T applied magnetic field are determined to be 3.2, 3.8, 3.5 J/kgK and 150, 182, 176 J/kg for the investigated samples, respectively. The change in structural, magnetic, and magnetocaloric effect attributed to the superexchange mechanism of Ni2+–O–Mn3+ and Ni2+–O–Mn4+. The various atomic sizes of Eu, Gd, and Tb affect the ratio of Mn4+/Mn3+, which is responsible for the considerable change in properties of double perovskite.
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Affiliation(s)
- K P Shinde
- Department of Materials Science and Engineering, Hanbat National University, Daejeon, 34158, South Korea
| | - E J Lee
- Department of Materials Science and Engineering, Hanbat National University, Daejeon, 34158, South Korea
| | - M Manawan
- Fakultas Teknologi Pertahanan, Universitas Pertahanan Indonesia, Bogor, 16810, Indonesia
| | - A Lee
- Center for Scientific Instrumentation, Korea Basic Science Institute, Daejeon, 34133, South Korea
| | - S-Y Park
- Center for Scientific Instrumentation, Korea Basic Science Institute, Daejeon, 34133, South Korea
| | - Y Jo
- Center for Scientific Instrumentation, Korea Basic Science Institute, Daejeon, 34133, South Korea
| | - K Ku
- Department of Materials Science and Engineering, Hanbat National University, Daejeon, 34158, South Korea
| | - J M Kim
- Department of Materials Science and Engineering, Hanbat National University, Daejeon, 34158, South Korea
| | - J S Park
- Department of Materials Science and Engineering, Hanbat National University, Daejeon, 34158, South Korea.
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6
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Yoo JH, Kim JM, Hong KP, Lee J, Hong ST. Journal of Korean Medical Science (JKMS): influential flagship medical journal in the Republic of Korea. Hong Kong Med J 2021; 27:242-243. [PMID: 34413253 DOI: 10.12809/hkmj215119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- J H Yoo
- Deputy Editor, Journal of Korean Medical Science, Korea.,Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Division of Infectious Diseases, Department of Internal Medicine, Bucheon St Mary's Hospital, Bucheon, Korea
| | - J M Kim
- Deputy Editor, Journal of Korean Medical Science, Korea.,Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - K P Hong
- Deputy Editor, Journal of Korean Medical Science, Korea.,Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J Lee
- Director of International Affairs, the Korean Academy of Medical Sciences, Korea.,Department of Radiology, Kyungpook National University Hospital, Daegu, Korea
| | - S T Hong
- Editor-in-Chief, Journal of Korean Medical Science, Korea.,Department of Tropical Medicine and Parasitology, Seoul National University College of Medicine, Seoul, Korea
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7
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Ogawa D, Suzuki Y, Yokoo T, Katoh E, Teruya M, Muramatsu M, Ma JF, Yoshida Y, Isaji S, Ogo Y, Miyao M, Kim JM, Kojima M, Takebayashi Y, Sakakibara H, Takeda S, Okada K, Mori N, Seki M, Habu Y. Acetic-acid-induced jasmonate signaling in root enhances drought avoidance in rice. Sci Rep 2021; 11:6280. [PMID: 33737547 PMCID: PMC7973560 DOI: 10.1038/s41598-021-85355-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 08/02/2018] [Accepted: 02/18/2021] [Indexed: 01/18/2023] Open
Abstract
Conferring drought resistant traits to crops is one of the major aims of current breeding programs in response to global climate changes. We previously showed that exogenous application of acetic acid to roots of various plants could induce increased survivability under subsequent drought stress conditions, but details of the metabolism of exogenously applied acetic acid, and the nature of signals induced by its application, have not been unveiled. In this study, we show that rice rapidly induces jasmonate signaling upon application of acetic acid, resulting in physiological changes similar to those seen under drought. The major metabolite of the exogenously applied acetic acid in xylem sap was determined as glutamine-a common and abundant component of xylem sap-indicating that acetic acid is not the direct agent inducing the observed physiological responses in shoots. Expression of drought-responsive genes in shoot under subsequent drought conditions was attenuated by acetic acid treatment. These data suggest that acetic acid activates root-to-shoot jasmonate signals that partially overlap with those induced by drought, thereby conferring an acclimated state on shoots prior to subsequent drought.
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Affiliation(s)
- Daisuke Ogawa
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan.,Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, 305-8517, Japan
| | - Yuya Suzuki
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Takayuki Yokoo
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Etsuko Katoh
- Advanced Analysis Center, National Agriculture and Food Research Organization, Tsukuba, 305-8517, Japan
| | - Miyu Teruya
- Biotechnology Research Center, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Masayuki Muramatsu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Kurashiki, 710-0046, Japan
| | - Yuri Yoshida
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Shunsaku Isaji
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Yuko Ogo
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, 305-8517, Japan
| | - Mitsue Miyao
- Graduate School of Agricultural Science, Tohoku University, Sendai, 980-8572, Japan
| | - Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan.,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Mikiko Kojima
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Yumiko Takebayashi
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Hitoshi Sakakibara
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan.,Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Shin Takeda
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan.,Bioscience and Biotechnology Center, Nagoya University, Nagoya, 464-8601, Japan
| | - Kazunori Okada
- Biotechnology Research Center, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Naoki Mori
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan.,Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, Wako, 351-0198, Japan
| | - Yoshiki Habu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan. .,Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, 305-8577, Japan.
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8
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Rhu J, Choi GS, Kwon CHD, Kim JM, Joh JW. Learning curve of laparoscopic living donor right hepatectomy. Br J Surg 2019; 107:278-288. [DOI: 10.1002/bjs.11350] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/07/2019] [Accepted: 08/05/2019] [Indexed: 12/28/2022]
Abstract
Abstract
Background
The feasibility and learning curve of laparoscopic living donor right hepatectomy was assessed.
Methods
Donors who underwent right hepatectomy performed by a single surgeon were reviewed. Comparisons between open and laparoscopy regarding operative outcomes, including number of bile duct openings in the graft, were performed using propensity score matching.
Results
From 2014 to 2018, 103 and 96 donors underwent laparoscopic and open living donor right hepatectomy respectively, of whom 64 donors from each group were matched. Mean(s.d.) duration of operation (252·2(41·9) versus 304·4(66·5) min; P < 0·001) and median duration of hospital stay (8 versus 10 days; P = 0·002) were shorter in the laparoscopy group. There was no difference in complication rates of donors (P = 0·298) or recipients (P = 0·394) between the two groups. Total time for laparoscopy decreased linearly (R2 = 0·407, β = –0·914, P = 0·001), with the decrease starting after approximately 50 procedures when cases were divided into four quartiles (2nd versus 3rd quartile, P = 0·001; 3rd versus 4th quartile, P = 0·023). Although grafts with bile duct openings were more abundant in the laparoscopy group (P = 0·022), no difference was found in the last two quartiles (P = 0·207).
Conclusion
Laparoscopic living donor right hepatectomy is feasible and an experience of approximately 50 cases may surpass the learning curve.
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Affiliation(s)
- J Rhu
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - G-S Choi
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - C H D Kwon
- Department of General Surgery, Digestive Disease and Surgery Institute, Lerner College of Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - J M Kim
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J-W Joh
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
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9
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Kurita K, Sakamoto Y, Naruse S, Matsunaga TM, Arata H, Higashiyama T, Habu Y, Utsumi Y, Utsumi C, Tanaka M, Takahashi S, Kim JM, Seki M, Sakamoto T, Matsunaga S. Intracellular localization of histone deacetylase HDA6 in plants. J Plant Res 2019; 132:629-640. [PMID: 31338715 DOI: 10.1007/s10265-019-01124-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 07/03/2019] [Indexed: 05/26/2023]
Abstract
Histone modification is an important epigenetic mechanism in eukaryotes. Histone acetyltransferase and deacetylase regulate histone acetylation levels antagonistically, leading to dynamic control of chromatin structure. One of the histone deacetylases, HDA6, is involved in gene silencing in the heterochromatin regions, chromocenter formation, and metabolic adaptation under drought stress. Although HDA6 plays an important role in chromatin control and response to drought stress, its intracellular localization has not been observed in detail. In this paper, we generated transformants expressing HDA6-GFP in the model plant, Arabidopsis thaliana, and the crops, rice, and cassava. We observed the localization of the fusion protein and showed that HDA6-GFP was expressed in the whole root and localized at the nucleus in Arabidopsis, rice, and cassava. Remarkably, HDA6-GFP clearly formed speckles that were actively colocalized with chromocenters in Arabidopsis root meristem. In contrast, such speckles were unlikely to be formed in rice or cassava. Because AtHDA6 directly binds to the acetate synthesis genes, which function in drought tolerance, we performed live imaging analyses to examine the cellular dynamics of pH in roots and the subnuclear dynamics of AtHDA6 responding to acetic acid treatment. The number of HDA6 speckles increased during drought stress, suggesting a role in contributing to drought stress tolerance.
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Affiliation(s)
- Kazuki Kurita
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Yuki Sakamoto
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Sota Naruse
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Tomoko M Matsunaga
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Hideyuki Arata
- Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
| | - Tetsuya Higashiyama
- Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8602, Japan
| | - Yoshiki Habu
- Plant Physiology Research Unit, Division of Plant and Microbial Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Yoshinori Utsumi
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Chikako Utsumi
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Satoshi Takahashi
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
- Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Takuya Sakamoto
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Sachihiro Matsunaga
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.
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Lee JS, Choi SJ, Kim L, Park IS, Han JY, Kim JM, Chu YC. ALK-positive anaplastic large cell lymphoma with a monomorphic small-cell pattern masquerading as inflammatory gastric lesions. Malays J Pathol 2019; 41:213-222. [PMID: 31427559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Anaplastic lymphoma kinase-positive (ALK+) anaplastic large cell lymphoma (ALCL) with a non-common pattern can be diagnostic challenging. Pathologists can be unavoidably and unintentionally blind to non-descript tumor cells in a lymphohistiocytic- (LH) or small-cell (SC)-pattern. We report a case of primary systemic ALK+ ALCL with a SC pattern that presented as secondary gastric lesions with a mixed LH and SC pattern that was masqueraded as inflammatory lesions. CASE REPORT A 34-year-old woman with intractable epigastric pain was referred to have repeated endoscopy with biopsy. She was found to multiple gastric erosions and nodules that were diagnosed as inflammatory lesions both endoscopically and histologically. Meanwhile, she developed an acute onset of severe back pain associated with a pathologic compression fracture in the T3 thoracic vertebral body. Imaging studies disclosed a disseminated systemic disease involving abdominopelvic lymph nodes and cervical and thoracic vertebral bodies. The needle biopsy of the pelvic lymph node disclosed diffuse proliferation of monomorphic small round cells that were diffusely positive for CD30 and ALK. A diagnosis of ALK+ ALCL with a monomorphic SC pattern was rendered. DISCUSSION A retrospective review of the gastric biopsies with the aid of immunohistochemistry enabled us to recognise the presence of lymphomatous infiltrates with a mixed LH and SC pattern in every piece of gastric biopsies that were repeatedly misdiagnosed as inflammatory lesions. This case illustrates a significant diagnostic pitfall of the LH- and SC-patterns in ALK+ ALCL, in which the tumour cells featuring lymphoid, plasmacytoid or histiocytoid appearance can be masqueraded as inflammatory cells.
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Affiliation(s)
- J S Lee
- Inha University College of Medicine, Inha University Hospital, Department of Pathology, Incheon, Republic of Korea.
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11
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Lee KH, Han SH, Yong D, Paik HC, Lee JG, Kim MS, Joo DJ, Choi JS, Kim SI, Kim YS, Park MS, Kim SY, Yoon YN, Kang S, Jeong SJ, Choi JY, Song YG, Kim JM. Acquisition of Carbapenemase-Producing Enterobacteriaceae in Solid Organ Transplantation Recipients. Transplant Proc 2019; 50:3748-3755. [PMID: 30577266 DOI: 10.1016/j.transproceed.2018.01.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 11/14/2017] [Accepted: 01/23/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Carbapenemase-producing Enterobacteriaceae (CPE) can lead to life-threatening outcomes with rapid spread of the carbapenemase gene in solid organ transplantation (SOT) recipients because of limitations of available antibiotics. We examined the characteristics and importance of CPE acquisition in SOT recipients with large numbers of CPE isolates. METHODS Between November 2015 and October 2016, 584 CPE isolates were found in 37 recipients and verified by carbapenemase gene multiplex polymerase chain reaction (PCR). One hundred recipients with at least 2 negative results in carbapenemase PCR for stool surveillance and no CPE isolates in clinical samples were retrospectively included. RESULTS Most CPE isolates were Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae (546, 93.5%). The most frequent transplantation organ was lung (43.3%), and the most common sample with CPE isolates other than stool was respiratory tract (22.6%). The median time between SOT and first CPE acquisition was 7 days. All-cause mortality was significantly higher in recipients with CPE than in those without CPE (24.3% vs 10.0%; P = .03). In multivariate regression analysis, stool colonization of vancomycin-resistant Enterococci and/or Clostridium difficile during 30 days before SOT (odds ratio [OR], 3.28; 95% CI, 1.24-8.68; P = .02), lung transplantation (OR, 4.50; 95% CI, 1.19-17.03; P = .03), and intensive care unit stay ≥2 weeks (OR, 6.21; 95% CI, 1.72-22.45; P = .005) were associated with acquisition of CPE. CONCLUSIONS Early posttransplantation CPE acquisition may affect the clinical outcome of SOT recipients. Careful screening for CPE during the early posttransplantation period would be meaningful in recipients with risk factors.
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Affiliation(s)
- K H Lee
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S H Han
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - D Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - H C Paik
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J G Lee
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - D J Joo
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J S Choi
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S I Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Park
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Y Kim
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y N Yoon
- Department of Cardiothoracic Surgery, Cardiovascular Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Kang
- Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S J Jeong
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Choi
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y G Song
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J M Kim
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Hwang MH, Cho KH, Jeong KJ, Park YY, Kim JM, Yu SL, Park CG, Mills GB, Lee HY. Correction: RCP induces Slug expression and cancer cell invasion by stabilizing β1 integrin. Oncogene 2019; 38:3970-3971. [PMID: 30679788 DOI: 10.1038/s41388-019-0678-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Following the publication of this article the authors noted that images were inadvertently duplicated in Fig. 1b. The corrected Fig. 1 can be found in the associated Correction. The conclusions of this paper are not affected. The authors sincerely apologize for this error. This error has not been corrected in the HTML or PDF of the original Article.
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Affiliation(s)
- M H Hwang
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea.,Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - K H Cho
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - K J Jeong
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Y-Y Park
- Asan Institute for Life Sciences, Asan Medical Center, Department of Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - J M Kim
- Cancer Research Institute, Regional Cancer Center and Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon, Korea
| | - S-L Yu
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - C G Park
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - G B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - H Y Lee
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea.
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Lee JS, Kim JM, Kim KS, Choi GS, Joh JW, Lee SK. Predictors of incisional hernia in adult liver transplant recipients. Hernia 2018; 23:61-65. [PMID: 30406851 DOI: 10.1007/s10029-018-1845-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/29/2018] [Indexed: 01/14/2023]
Abstract
PURPOSE Incisional hernia is a complication following abdominal operation. Patients undergoing liver transplantation have a high risk of developing incisional hernia because of immunosuppression. The purpose of this study was to evaluate incisional hernia after liver transplantation and to identify risk factors for hernia formation in those patients. METHODS We retrospectively reviewed 1044 adult patients with more than 2 years of follow-up in patients who underwent liver transplantation from January 2000 to December 2015. RESULTS Incisional hernia was identified in 79 patients with more than 2 years of follow-up. The overall incisional hernia rate was 7.6%. The mean age and body mass index (BMI) of the patients with incisional hernia were 55 ± 9 years and 25.3 ± 3.7 kg/m2, respectively. No significant differences in gender, diagnosis, diabetes, Child-Pugh score, model for end-stage liver disease (MELD) score, donor type, hepatorenal syndrome, varix bleeding, ascites, hepatic encephalopathy, ventilator use, spontaneous bacterial peritonitis (SBP), or bile leakage were found between patients who did and did not develop incisional hernia. Patients with acute rejection before hernia development were more to have herniated patients hernia (p < 0.05). CONCLUSION Age greater than 55 years and high BMI were significant risk factors. We identified risk factors for the development of incisional hernia. Based on these risk factors, attention should be paid to incisional hernia in older and obese patients.
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Affiliation(s)
- J S Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - J M Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea.
| | - K S Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - G-S Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - J-W Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - S-K Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
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14
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Kim W, Kim HO, Cho JH, Kim JM, Chung HM. 4064Effects of chronic kidney disease on clinical outcomes in patients with peripheral artery disease undergoing endovascular treatment: analysis from the K-VIS ELLA registry. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.4064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- W Kim
- Kyung Hee University Hospital, Seoul, Korea Republic of
| | - H O Kim
- Kyung Hee University Hospital, Seoul, Korea Republic of
| | - J H Cho
- Saint Carollo Hospital, Suncheon, Korea Republic of
| | - J M Kim
- Saint Carollo Hospital, Suncheon, Korea Republic of
| | - H M Chung
- Kyung Hee University Hospital, Seoul, Korea Republic of
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15
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Kim W, Kim JM, Cho JH, Kim HO, Woo JS, Chung HM. P6400Circadian distribution of acute myocardial infarction in different age groups: sinusoidal function analyses. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- W Kim
- Kyung Hee University Hospital, Seoul, Korea Republic of
| | - J M Kim
- Saint Carollo Hospital, Suncheon, Korea Republic of
| | - J H Cho
- Saint Carollo Hospital, Suncheon, Korea Republic of
| | - H O Kim
- Kyung Hee University Hospital, Seoul, Korea Republic of
| | - J S Woo
- Kyung Hee University Hospital, Seoul, Korea Republic of
| | - H M Chung
- Kyung Hee University Hospital, Seoul, Korea Republic of
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Rhu J, Choi GS, Kim JM, Kwon CHD, Kim SJ, Joh JW. Laparoscopic right posterior sectionectomy versus laparoscopic right hemihepatectomy for hepatocellular carcinoma in posterior segments: Propensity Score Matching Analysis. Scand J Surg 2018; 108:23-29. [PMID: 29973107 DOI: 10.1177/1457496918783720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIMS: This study was designed to analyze the feasibility of laparoscopic right posterior sectionectomy compared to laparoscopic right hemihepatectomy in patients with hepatocellular carcinoma located in the posterior segments. MATERIAL AND METHODS: The study included patients who underwent either laparoscopic right posterior sectionectomy or laparoscopic right hemihepatectomy for hepatocellular carcinoma located in segment 6 or 7 from January 2009 to December 2016 at Samsung Medical Center. After 1:1 propensity score matching, patient baseline characteristics and operative and postoperative outcomes were compared between the two groups. Disease-free survival and overall survival were compared using Kaplan-Meier log-rank test. RESULTS: Among 61 patients with laparoscopic right posterior sectionectomy and 37 patients with laparoscopic right hemihepatectomy, 30 patients from each group were analyzed after propensity score matching. After matching, baseline characteristics of the two groups were similar including tumor size (3.4 ± 1.2 cm in laparoscopic right posterior sectionectomy vs 3.7 ± 2.1 cm in laparoscopic right hemihepatectomy, P = 0.483); differences were significant before matching (3.1 ± 1.3 cm in laparoscopic right posterior sectionectomy vs 4.3 ± 2.7 cm in laparoscopic right hemihepatectomy, P = 0.035). No significant differences were observed in operative and postoperative data except for free margin size (1.04 ± 0.71 cm in laparoscopic right posterior sectionectomy vs 2.95 ± 1.75 cm in laparoscopic right hemihepatectomy, P < 0.001). Disease-free survival (5-year survival: 38.0% in laparoscopic right posterior sectionectomy vs 47.0% in laparoscopic right hemihepatectomy, P = 0.510) and overall survival (5-year survival: 92.7% in laparoscopic right posterior sectionectomy vs 89.6% in laparoscopic right hemihepatectomy, P = 0.593) did not differ between the groups based on Kaplan-Meier log-rank test. CONCLUSION: For hepatocellular carcinoma in the posterior segments, laparoscopic right posterior sectionectomy was feasible compared to laparoscopic right hemihepatectomy when performed by experienced laparoscopic surgeons.
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Affiliation(s)
- J Rhu
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - G S Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J M Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - C H D Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S J Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J-W Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Kim JM, Choi S, Lee SW, Park K. Voltage-dependent Ca 2+ channels promote branching morphogenesis of salivary glands by patterning differential growth. Sci Rep 2018; 8:7566. [PMID: 29765108 PMCID: PMC5954160 DOI: 10.1038/s41598-018-25957-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 11/20/2017] [Accepted: 04/30/2018] [Indexed: 11/30/2022] Open
Abstract
Branching morphogenesis is a crucial part of early developmental processes in diverse organs, but the detailed mechanism of this morphogenic event remains to be elucidated. Here we introduce an unknown mechanism leading to branching morphogenesis using mouse embryonic organotypic cultures with time-lapse live imaging. We found spatially expressed L-type voltage-dependent Ca2+ channels (VDCCs) in the peripheral layers of developing epithelial buds and identified the VDCCs as a core signaling mediator for patterning branching architecture. In this process, differential growth in peripheral layers by VDCC-induced ERK activity promoted cleft formation through an epithelial buckling-folding mechanism. Our findings reveal an unexpected role of VDCCs in developmental processes, and address a fundamental question regarding the initial process of branching morphogenesis.
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Affiliation(s)
- J M Kim
- Department of Dentistry, CHA Bundang Medical Center, CHA University, Seongnam, 13496, South Korea
| | - S Choi
- Department of Physiology, School of Dentistry, Seoul National University and Dental Research Institute, Seoul, 03080, South Korea
| | - S W Lee
- Department of Physiology, School of Dentistry, Seoul National University and Dental Research Institute, Seoul, 03080, South Korea
| | - K Park
- Department of Physiology, School of Dentistry, Seoul National University and Dental Research Institute, Seoul, 03080, South Korea.
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18
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Jo MJ, Kumar H, Joshi HP, Choi H, Ko WK, Kim JM, Hwang SSS, Park SY, Sohn S, Bello AB, Kim KT, Lee SH, Zeng X, Han I. Oral Administration of α-Asarone Promotes Functional Recovery in Rats With Spinal Cord Injury. Front Pharmacol 2018; 9:445. [PMID: 29867457 PMCID: PMC5949368 DOI: 10.3389/fphar.2018.00445] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 04/17/2018] [Indexed: 11/13/2022] Open
Abstract
α-asarone, a bioactive compound found in Acorus plant species, has been shown to exhibit neuroprotective, anti-oxidative, anti-inflammatory, and cognitive-enhancing effects. However, the effects of α-asarone on spinal cord injury (SCI) have not yet been elucidated. The present study investigated the effects of α-asarone on the mRNA of pro-inflammatory cytokines, macrophage polarization toward an anti-inflammatory M2 phenotype, and angiogenesis in rats with compressive SCI. α-Asarone was orally administered (10 mg/kg) once per day for 14 days following moderate static compression SCI. Compared to controls, α-asarone treatment significantly improved locomotor score, prevented neuroinflammation, and facilitated angiogenesis in the spinal cord at 14 days after SCI. Furthermore, α-asarone significantly reduced the TNF-α, IL-1β, IL-6, monocyte chemoattractant protein 1 (MCP-1), macrophage inflammatory protein 2 (MIP-2), and inducible nitric oxide synthase (iNOS) levels but increased the IL-4, IL-10, and arginase 1 levels at 24 h after SCI. At 7 and 14 days after SCI, immunohistochemistry showed reduced reactive gliosis and neuroinflammation and an increased expression of M2 macrophage markers and angiogenesis. The results suggest that the inhibition of pro-inflammatory cytokines, macrophage polarization toward an anti-inflammatory M2 phenotype, and angiogenesis by α-asarone may be some of the mechanisms underlying the α-asarone-mediated neuroprotective effects on an injured spinal cord.
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Affiliation(s)
- Min-Jae Jo
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Hemant Kumar
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Hari P Joshi
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Hyemin Choi
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Wan-Kyu Ko
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - J M Kim
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Sean S S Hwang
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Song Y Park
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Seil Sohn
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
| | - Alvin B Bello
- Department of Biomedical Science, CHA University, Seongnam-si, South Korea
| | - Kyoung-Tae Kim
- Department of Neurosurgery, Kyungpook National University Hospital, Daegu, South Korea
| | - Soo-Hong Lee
- Department of Biomedical Science, CHA University, Seongnam-si, South Korea
| | - Xiang Zeng
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Inbo Han
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si, South Korea
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Min JH, Kang TW, Cha DI, Song KD, Lee MW, Rhim H, Sinn DH, Kim JM, Sohn I. Radiofrequency ablation versus surgical resection for multiple HCCs meeting the Milan criteria: propensity score analyses of 10-year therapeutic outcomes. Clin Radiol 2018; 73:676.e15-676.e24. [PMID: 29709236 DOI: 10.1016/j.crad.2018.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 07/25/2017] [Accepted: 02/13/2018] [Indexed: 02/06/2023]
Abstract
AIM To assess the long-term therapeutic outcomes of radiofrequency ablation (RFA) versus surgical resection (SR) as a first-line treatment for patients meeting the Milan criteria with multiple hepatocellular carcinomas (HCCs). MATERIALS AND METHODS This retrospective study was approved by the institutional review board and the requirement for informed consent was waived. Between January 2004 and December 2009, among 3,441 patients with treatment-naive HCCs, 88 patients meeting the Milan criteria with multiple HCCs (Barcelona Clinic Liver Cancer [BCLC] A stage) who underwent either RFA (n=62) or SR (n=26) were included. Recurrence-free survival (RFS) and overall survival (OS) rates were compared by using propensity score matching. In addition, multivariate analysis was performed for assess the prognostic factor. RESULTS Matching yielded 20 matched pairs of patients. In the two matched groups, the RFS rates were 30% and 30% at 5- and 10-years, respectively, in the RFA group and 60% and 48.6% in the SR group (p=0.054). The corresponding OS rates were 63.3% and 46.1% in the RFA group and 100% and 73.6% in the SR group, respectively (p=0.061). In multivariate analysis, treatment type was independently associated with RFS (hazard ratio [HR]=0.51; p=0.043) whereas it was not a statistically significant factor for OS (HR=0.50; p=0.088). CONCLUSION In patients meeting the Milan criteria with multiple HCCs (BCLC A stage), SR may provide better RFS compared to RFA.
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Affiliation(s)
- J H Min
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - T W Kang
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - D I Cha
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - K D Song
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - M W Lee
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H Rhim
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D H Sinn
- Division of Hepatology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J M Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - I Sohn
- Biostatistics and Clinical Epidemiology Center, Samsung Biomedical Research Institute, Seoul, Republic of Korea
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Moon HH, Kim TS, Song S, Shin M, Chung YJ, Lee S, Choi GS, Kim JM, Kwon CHD, Lee SK, Joh J. Early Vs Late Liver Retransplantation: Different Characteristics and Prognostic Factors. Transplant Proc 2018; 50:2668-2674. [PMID: 30401374 DOI: 10.1016/j.transproceed.2018.03.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 01/20/2018] [Accepted: 03/06/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND East Asia is a known endemic area for hepatitis B, and living donor liver transplantation is mainly performed. Liver retransplantation (ReLT) is expected to become an increasing problem because of a shortage of organs. This study aimed to compare early and late ReLT with consideration of specific circumstances and disease background of East Asians. METHODS Between October 1996 and January 2015, 51 patients underwent ReLT; we performed a retrospective analysis of data obtained from medical records of the patients. Clinical characteristics, indication, causes of death, survival rate, and prognostic factors were investigated. RESULT The survival rate for early ReLT (n = 18) was 51.5% and that for late ReLT (n = 33) was 50.1% at 1 year postoperatively. Continuous venovenous hemodialysis and the use of mechanical ventilators were more frequent, and pre-retransplant intensive care unit stay and prothrombin time was longer in early ReLT than in late ReLT. Operation time was longer and the amount of intraoperative blood loss was greater in late ReLT than in early ReLT. Multivariate analysis showed that a higher C-reactive protein level increased mortality in early ReLT (P = .045), whereas a higher total bilirubin level increased the risk of death in late ReLT (P = .03). CONCLUSION Patients with early ReLT are likely to be sicker pre-retransplantation and require adequate treatment of the pretransplant infectious disease. On the other hand, late ReLT is likely to be technically more difficult and should be decided before the total bilirubin level increases substantially.
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Affiliation(s)
- H H Moon
- Department of Surgery, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan, Korea
| | - T-S Kim
- Department of Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - S Song
- Department of Surgery, Dankuk University Hospital, Dankuk University School of Medicine, Daejeon, Korea
| | - M Shin
- Department of Surgery, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Y J Chung
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - G S Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J M Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - C H D Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S-K Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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21
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Ryu JM, Yu J, Nam SJ, Kim I, Lee JE, Lee SK, Kim JM, Choi HJ, Kim SW. Abstract P1-07-25: Differences among young breast cancer patients based on subtype: A study from the Korean Breast Cancer Society – Running head: Do breast cancers in 20s have worse prognosis than 30s? Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p1-07-25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose Numerous studies demonstrated that breast cancer in young women (BCY) has unfavorable prognostic features and unfavorable subtype. However, there were few studies to evaluate the effect on the prognosis of breast cancer according to the subtype disparities by age especially BCY. We analyzed breast cancer mortality stratified tumor subtype according to age among the patients with less than 50 year-old. Patients and Methods Data obtained from the Korean Breast Cancer Society Registry (KBCSR), patients diagnosed with invasive breast cancer were retrospectively between 2003 and 2010. We excluded patients with male breast cancer, underwent neoadjuvant chemotherapy, distant metastasis or inflammatory breast cancer at presentation, and other histopathology except invasive ductal or invasive lobular carcinoma. We also excluded patients with lack of immunohistochemistry data and short-term follow-up duration (<12 months). Results We identified 37,865 patients, and excluded by study protocol. Among those, 30,793 patients with breast cancer for eligible for analysis, 793 (2.6%) were 20-29 years and 8,926 (28.8%) were 30-39 years of age. Median follow-up duration was 84 months. Mean age was 42.4 years old. Younger patients with breast cancer were more likely to have advanced stage, higher nuclear grade, present lymphovascular invasion, and more likely to be unfavorable subtype such as triple negative breast cancer (TNBC)
Table 1. Baseline Characteristics Age at Presentation 20-29, N(%)30-39, N(%)40-49, N(%)P-valueOverall793 (2.6)8,133 (26.4)21,867 (71.0) Pathologic stage <.0001I295 (37.2)2,928 (36.0)9,288 (42.5) II373 (47.0)3,644 (44.8)9,078 (41.5) III119 (15.0)1,442 (17.7)3,211 (14.7) Family history <.0001Yes81 (10.2)674 (8.3)1,391 (6.4) No712 (89.8)7,459 (91.7)20,476 (93.6) Nuclear grade <.0001Low85 (10.2)941 (11.6)3,824 (17.5) Intermediate288 (36.3)3,340 (41.1)9,688 (44.3) High331 (41.7)3,165 (38.9)6,650 (30.4) LVI <.0001Yes249 (31.4)2,840 (34.9)6,711 (30.7) No433 (54.6)4,367 (53.7)13,005 (59.5) Subtype <.0001Luminal A314 (39.6)3,529 (43.4)11,716 (53.6) Luminal B190 (24.0)1,895 (23.3)4,775 (21.8) Her-252 (6.6)724 (8.9)1,723 (7.9) TNBC237 (29.8)1,895 (24.4)3,653 (16.7) HER-2, human epidermal growth factor-2; TNBC, triple negative breast cancer
. Patients with younger age group showed worse prognosis than patients with older age patients. In multivariate analysis for overall survival, as patients were younger group, hazard ratio was increased, and the patients with TNBC showed higher HR than HER-2, Luminal B, and Luminal A subtype (P< .0001, P< .0001, P< .0001, and P< .0001, respectively). Stratified by subtype, luminal subtype showed significant worse prognosis as the age group was younger, while as, Her-2 and TNBC subtype showed no significantly difference by the age group. Conclusion Patients with 20s breast cancer showed unfavorable characteristics and worse prognosis than 30s and older aged group. Stratified by tumor subtype, breast cancer in 20s with luminal subtype showed worse prognosis, while as HER-2 and TNBC showed no significantly different compare to breast cancer in 30s.
Citation Format: Ryu JM, Yu J, Nam SJ, Kim I, Lee JE, Lee SK, Kim JM, Choi HJ, Kim SW. Differences among young breast cancer patients based on subtype: A study from the Korean Breast Cancer Society – Running head: Do breast cancers in 20s have worse prognosis than 30s? [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-07-25.
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Affiliation(s)
- JM Ryu
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J Yu
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - SJ Nam
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - I Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - JE Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - SK Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - JM Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - HJ Choi
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - SW Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Kim TS, Kim JM, Kwon CHD, Kim SJ, Joh JW, Lee SK. Prognostic Factors Predicting Poor Outcome in Living-Donor Liver Transplantation for Fulminant Hepatic Failure. Transplant Proc 2018; 49:1118-1122. [PMID: 28583539 DOI: 10.1016/j.transproceed.2017.03.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Living-donor liver transplantation (LDLT) has been accepted as feasible treatment for fulminant hepatic failure (FHF), although it has generated several debatable issues. In this study, we investigated the prognostic factors predicting fatal outcome after LDLT for FHF. METHODS From April 1999 to April 2011, 60 patients underwent LT for acute liver failure, including 42 patients for FHF at Samsung Medical Center, Seoul, Korea. Among 42 patients, 30 patients underwent LDLT for FHF, and the database of these patients was analyzed retrospectively to investigate the prognostic factors after LDLT for FHF. RESULTS Among 30 patients, 7 patients (23%) died during the in-hospital period within 6 months, and 23 patients (77%) survived until recently. In univariate analyses, donor age (>35 years), graft volume (GV)/standard liver volume (SLV) (<50%), cold ischemic time (>120 minutes), hepatic encephalopathy (grade IV), hepato-renal syndrome (HRS), and history of ventilator care were associated with fatal outcome after LDLT for FHF. In multivariate analyses, HRS, GV/SLV (<50%), and donor age (>35 years) were significantly associated with fatal outcome. Although the statistical significance was not shown in this analysis (P = .059), hepatic encephalopathy grade IV also appears to be a risk factor predicting fatal outcome. CONCLUSIONS The survival of patients with FHF undergoing LDLT was comparable to that in published data. In this study, HRS, GV/SLV <50%, and donor age >35 years are the independent poor prognostic factors.
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Affiliation(s)
- T-S Kim
- Department of Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - J M Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - C H D Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S J Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J-W Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - S-K Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Ueda M, Matsui A, Tanaka M, Nakamura T, Abe T, Sako K, Sasaki T, Kim JM, Ito A, Nishino N, Shimada H, Yoshida M, Seki M. The Distinct Roles of Class I and II RPD3-Like Histone Deacetylases in Salinity Stress Response. Plant Physiol 2017; 175:1760-1773. [PMID: 29018096 PMCID: PMC5717743 DOI: 10.1104/pp.17.01332] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/06/2017] [Indexed: 05/06/2023]
Abstract
Histone acetylation is an essential process in the epigenetic regulation of diverse biological processes, including environmental stress responses in plants. Previously, our research group identified a histone deacetylase (HDAC) inhibitor (HDI) that confers salt tolerance in Arabidopsis (Arabidopsis thaliana). In this study, we demonstrate that class I HDAC (HDA19) and class II HDACs (HDA5/14/15/18) control responses to salt stress through different pathways. The screening of 12 different selective HDIs indicated that seven newly reported HDIs enhance salt tolerance. Genetic analysis, based on a pharmacological study, identified which HDACs function in salinity stress tolerance. In the wild-type Columbia-0 background, hda19 plants exhibit tolerance to high-salinity stress, while hda5/14/15/18 plants exhibit hypersensitivity to salt stress. Transcriptome analysis revealed that the effect of HDA19 deficiency on the response to salinity stress is distinct from that of HDA5/14/15/18 deficiencies. In hda19 plants, the expression levels of stress tolerance-related genes, late embryogenesis abundant proteins that prevent protein aggregation and positive regulators such as ABI5 and NAC019 in abscisic acid signaling, were induced strongly relative to the wild type. Neither of these elements was up-regulated in the hda5/14/15/18 plants. The mutagenesis of HDA19 by genome editing in the hda5/14/15/18 plants enhanced salt tolerance, suggesting that suppression of HDA19 masks the phenotype caused by the suppression of class II HDACs in the salinity stress response. Collectively, our results demonstrate that HDIs that inhibit class I HDACs allow the rescue of plants from salinity stress regardless of their selectivity, and they provide insight into the hierarchal regulation of environmental stress responses through HDAC isoforms.
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Affiliation(s)
- Minoru Ueda
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
| | - Akihiro Matsui
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
| | - Tomoe Nakamura
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo 125-8585, Japan
| | - Takahiro Abe
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa 244-0813, Japan
| | - Kaori Sako
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
| | - Taku Sasaki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
| | - Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
| | - Akihiro Ito
- Chemical Genomics Research Group, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Norikazu Nishino
- Chemical Genomics Research Group, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Hiroaki Shimada
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo 125-8585, Japan
| | - Minoru Yoshida
- Chemical Genomics Research Group, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa 244-0813, Japan
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Kim JH, Son YD, Kim JM, Kim HK, Kim YB, Lee C, Oh CH. Interregional correlations of glucose metabolism between the basal ganglia and different cortical areas: an ultra-high resolution PET/MRI fusion study using 18F-FDG. ACTA ACUST UNITED AC 2017; 51:e6724. [PMID: 29160415 PMCID: PMC5685063 DOI: 10.1590/1414-431x20176724] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 09/12/2017] [Indexed: 11/29/2022]
Abstract
Basal ganglia have complex functional connections with the cerebral cortex and are involved in motor control, executive functions of the forebrain, such as the planning of movement, and cognitive behaviors based on their connections. The aim of this study was to provide detailed functional correlation patterns between the basal ganglia and cerebral cortex by conducting an interregional correlation analysis of the 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) data based on precise structural information. Fifteen participants were scanned with 7-Tesla magnetic resonance imaging (MRI) and high resolution research tomography (HRRT)-PET fusion system using 18F-FDG. For detailed interregional correlation analysis, 24 subregions of the basal ganglia including pre-commissural dorsal caudate, post-commissural caudate, pre-commissural dorsal putamen, post-commissural putamen, internal globus pallidus, and external globus pallidus and 80 cerebral regions were selected as regions of interest on the MRI image and their glucose metabolism were calculated from the PET images. Pearson's product-moment correlation analysis was conducted for the interregional correlation analysis of the basal ganglia. Functional correlation patterns between the basal ganglia and cerebral cortex were not only consistent with the findings of previous studies, but also showed new functional correlation between the dorsal striatum (i.e., caudate nucleus and putamen) and insula. In this study, we established the detailed basal ganglia subregional functional correlation patterns using 18F-FDG PET/MRI fusion imaging. Our methods and results could potentially be an important resource for investigating basal ganglia dysfunction as well as for conducting functional studies in the context of movement and psychiatric disorders.
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Affiliation(s)
- J H Kim
- Research Institute for Advanced Industrial Technology, College of Science and Technology, Korea University, Sejong, South Korea
| | - Y D Son
- Department of Biomedical Engineering, College of Health Science, Gachon University, Incheon, South Korea
| | - J M Kim
- Department of Electronics and Information Engineering, College of Science and Technology, Korea University, Sejong, South Korea
| | - H K Kim
- Department of Biomedical Engineering, College of Health Science, Gachon University, Incheon, South Korea
| | - Y B Kim
- Department of Neurosurgery, Gachon University Gil Medical Center, Gachon University School of Medicine, Incheon, South Korea
| | - C Lee
- Bioimaging Research Team, Korea Basic Science Institute, Cheongju, South Korea
| | - C H Oh
- Department of Electronics and Information Engineering, College of Science and Technology, Korea University, Sejong, South Korea
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Judd A, Zangerle R, Touloumi G, Warszawski J, Meyer L, Dabis F, Mary Krause M, Ghosn J, Leport C, Wittkop L, Reiss P, Wit F, Prins M, Bucher H, Gibb D, Fätkenheuer G, Julia DA, Obel N, Thorne C, Mocroft A, Kirk O, Stephan C, Pérez-Hoyos S, Hamouda O, Bartmeyer B, Chkhartishvili N, Noguera-Julian A, Antinori A, d’Arminio Monforte A, Brockmeyer N, Prieto L, Rojo Conejo P, Soriano-Arandes A, Battegay M, Kouyos R, Mussini C, Tookey P, Casabona J, Miró JM, Castagna A, Konopnick D, Goetghebuer T, Sönnerborg A, Quiros-Roldan E, Sabin C, Teira R, Garrido M, Haerry D, de Wit S, Miró JM, Costagliola D, d’Arminio-Monforte A, Castagna A, del Amo J, Mocroft A, Raben D, Chêne G, Judd A, Pablo Rojo C, Barger D, Schwimmer C, Termote M, Wittkop L, Campbell M, Frederiksen CM, Friis-Møller N, Kjaer J, Raben D, Salbøl Brandt R, Berenguer J, Bohlius J, Bouteloup V, Bucher H, Cozzi-Lepri A, Dabis F, d’Arminio Monforte A, Davies MA, del Amo J, Dorrucci M, Dunn D, Egger M, Furrer H, Grabar S, Guiguet M, Judd A, Kirk O, Lambotte O, Leroy V, Lodi S, Matheron S, Meyer L, Miro JM, Mocroft A, Monge S, Nakagawa F, Paredes R, Phillips A, Puoti M, Rohner E, Schomaker M, Smit C, Sterne J, Thiebaut R, Thorne C, Torti C, van der Valk M, Wittkop L, Tanser F, Vinikoor M, Macete E, Wood R, Stinson K, Garone D, Fatti G, Giddy J, Malisita K, Eley B, Fritz C, Hobbins M, Kamenova K, Fox M, Prozesky H, Technau K, Sawry S, Benson CA, Bosch RJ, Kirk GD, Boswell S, Mayer KH, Grasso C, Hogg RS, Richard Harrigan P, Montaner JSG, Yip B, Zhu J, Salters K, Gabler K, Buchacz K, Brooks JT, Gebo KA, Moore RD, Moore RD, Rodriguez B, Horberg MA, Silverberg MJ, Thorne JE, Rabkin C, Margolick JB, Jacobson LP, D’Souza G, Klein MB, Rourke SB, Rachlis AR, Cupido P, Hunter-Mellado RF, Mayor AM, John Gill M, Deeks SG, Martin JN, Patel P, Brooks JT, Saag MS, Mugavero MJ, Willig J, Eron JJ, Napravnik S, Kitahata MM, Crane HM, Drozd DR, Sterling TR, Haas D, Rebeiro P, Turner M, Bebawy S, Rogers B, Justice AC, Dubrow R, Fiellin D, Gange SJ, Anastos K, Moore RD, Saag MS, Gange SJ, Kitahata MM, Althoff KN, Horberg MA, Klein MB, McKaig RG, Freeman AM, Moore RD, Freeman AM, Lent C, Kitahata MM, Van Rompaey SE, Crane HM, Drozd DR, Morton L, McReynolds J, Lober WB, Gange SJ, Althoff KN, Abraham AG, Lau B, Zhang J, Jing J, Modur S, Wong C, Hogan B, Desir F, Liu B, You B, Cahn P, Cesar C, Fink V, Sued O, Dell’Isola E, Perez H, Valiente J, Yamamoto C, Grinsztejn B, Veloso V, Luz P, de Boni R, Cardoso Wagner S, Friedman R, Moreira R, Pinto J, Ferreira F, Maia M, Célia de Menezes Succi R, Maria Machado D, de Fátima Barbosa Gouvêa A, Wolff M, Cortes C, Fernanda Rodriguez M, Allendes G, William Pape J, Rouzier V, Marcelin A, Perodin C, Tulio Luque M, Padgett D, Sierra Madero J, Crabtree Ramirez B, Belaunzaran P, Caro Vega Y, Gotuzzo E, Mejia F, Carriquiry G, McGowan CC, Shepherd BE, Sterling T, Jayathilake K, Person AK, Rebeiro PF, Giganti M, Castilho J, Duda SN, Maruri F, Vansell H, Ly PS, Khol V, Zhang FJ, Zhao HX, Han N, Lee MP, Li PCK, Lam W, Chan YT, Kumarasamy N, Saghayam S, Ezhilarasi C, Pujari S, Joshi K, Gaikwad S, Chitalikar A, Merati TP, Wirawan DN, Yuliana F, Yunihastuti E, Imran D, Widhani A, Tanuma J, Oka S, Nishijima T, Na S, Choi JY, Kim JM, Sim BLH, Gani YM, David R, Kamarulzaman A, Syed Omar SF, Ponnampalavanar S, Azwa I, Ditangco R, Uy E, Bantique R, Wong WW, Ku WW, Wu PC, Ng OT, Lim PL, Lee LS, Ohnmar PS, Avihingsanon A, Gatechompol S, Phanuphak P, Phadungphon C, Kiertiburanakul S, Sungkanuparph S, Chumla L, Sanmeema N, Chaiwarith R, Sirisanthana T, Kotarathititum W, Praparattanapan J, Kantipong P, Kambua P, Ratanasuwan W, Sriondee R, Nguyen KV, Bui HV, Nguyen DTH, Nguyen DT, Cuong DD, An NV, Luan NT, Sohn AH, Ross JL, Petersen B, Cooper DA, Law MG, Jiamsakul A, Boettiger DC, Ellis D, Bloch M, Agrawal S, Vincent T, Allen D, Smith D, Rankin A, Baker D, Templeton DJ, O’Connor CC, Thackeray O, Jackson E, McCallum K, Ryder N, Sweeney G, Cooper D, Carr A, Macrae K, Hesse K, Finlayson R, Gupta S, Langton-Lockton J, Shakeshaft J, Brown K, Idle S, Arvela N, Varma R, Lu H, Couldwell D, Eswarappa S, Smith DE, Furner V, Smith D, Cabrera G, Fernando S, Cogle A, Lawrence C, Mulhall B, Boyd M, Law M, Petoumenos K, Puhr R, Huang R, Han A, Gunathilake M, Payne R, O’Sullivan M, Croydon A, Russell D, Cashman C, Roberts C, Sowden D, Taing K, Marshall P, Orth D, Youds D, Rowling D, Latch N, Warzywoda E, Dickson B, Donohue W, Moore R, Edwards S, Boyd S, Roth NJ, Lau H, Read T, Silvers J, Zeng W, Hoy J, Watson K, Bryant M, Price S, Woolley I, Giles M, Korman T, Williams J, Nolan D, Allen A, Guelfi G, Mills G, Wharry C, Raymond N, Bargh K, Templeton D, Giles M, Brown K, Hoy J. Comparison of Kaposi Sarcoma Risk in Human Immunodeficiency Virus-Positive Adults Across 5 Continents: A Multiregional Multicohort Study. Clin Infect Dis 2017; 65:1316-1326. [PMID: 28531260 PMCID: PMC5850623 DOI: 10.1093/cid/cix480] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 05/19/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND We compared Kaposi sarcoma (KS) risk in adults who started antiretroviral therapy (ART) across the Asia-Pacific, South Africa, Europe, Latin, and North America. METHODS We included cohort data of human immunodeficiency virus (HIV)-positive adults who started ART after 1995 within the framework of 2 large collaborations of observational HIV cohorts. We present incidence rates and adjusted hazard ratios (aHRs). RESULTS We included 208140 patients from 57 countries. Over a period of 1066572 person-years, 2046 KS cases were diagnosed. KS incidence rates per 100000 person-years were 52 in the Asia-Pacific and ranged between 180 and 280 in the other regions. KS risk was 5 times higher in South African women (aHR, 4.56; 95% confidence intervals [CI], 2.73-7.62) than in their European counterparts, and 2 times higher in South African men (2.21; 1.34-3.63). In Europe, Latin, and North America KS risk was 6 times higher in men who have sex with men (aHR, 5.95; 95% CI, 5.09-6.96) than in women. Comparing patients with current CD4 cell counts ≥700 cells/µL with those whose counts were <50 cells/µL, the KS risk was halved in South Africa (aHR, 0.53; 95% CI, .17-1.63) but reduced by ≥95% in other regions. CONCLUSIONS Despite important ART-related declines in KS incidence, men and women in South Africa and men who have sex with men remain at increased KS risk, likely due to high human herpesvirus 8 coinfection rates. Early ART initiation and maintenance of high CD4 cell counts are essential to further reducing KS incidence worldwide, but additional measures might be needed, especially in Southern Africa.
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Kamiya M, Higashio SY, Isomoto A, Kim JM, Seki M, Miyashima S, Nakajima K. Control of root cap maturation and cell detachment by BEARSKIN transcription factors in Arabidopsis. Development 2017; 143:4063-4072. [PMID: 27803060 DOI: 10.1242/dev.142331] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 09/19/2016] [Indexed: 01/29/2023]
Abstract
The root cap supports root growth by protecting the root meristem, sensing gravity and interacting with the rhizosphere through metabolite secretion and cell dispersal. Sustained root cap functions therefore rely on balanced proliferation of proximal stem cells and regulated detachment of distal mature cells. Although the gene regulatory network that governs stem cell activity in the root cap has been extensively studied in Arabidopsis, the mechanisms by which root cap cells mature and detach from the root tip are poorly understood. We performed a detailed expression analysis of three regulators of root cap differentiation, SOMBRERO, BEARSKIN1 and BEARSKIN2, and identified their downstream genes. Our results indicate that expression of BEARSKIN1 and BEARSKIN2 is associated with cell positioning on the root surface. We identified a glycosyl hydrolase 28 (GH28) family polygalacturonase (PG) gene as a direct target of BEARSKIN1. Overexpression and loss-of-function analyses demonstrated that the protein encoded by this PG gene facilitates cell detachment. We thus revealed a molecular link between the key regulators of root cap differentiation and the cellular events underlying root cap-specific functions.
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Affiliation(s)
- Masako Kamiya
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Shin-Ya Higashio
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Atsushi Isomoto
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Jong-Myong Kim
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Motoaki Seki
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Shunsuke Miyashima
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Keiji Nakajima
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
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Matsui A, Iida K, Tanaka M, Yamaguchi K, Mizuhashi K, Kim JM, Takahashi S, Kobayashi N, Shigenobu S, Shinozaki K, Seki M. Novel Stress-Inducible Antisense RNAs of Protein-Coding Loci Are Synthesized by RNA-Dependent RNA Polymerase. Plant Physiol 2017; 175:457-472. [PMID: 28710133 PMCID: PMC5580770 DOI: 10.1104/pp.17.00787] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 07/12/2017] [Indexed: 05/03/2023]
Abstract
Our previous study identified approximately 6,000 abiotic stress-responsive noncoding transcripts existing on the antisense strand of protein-coding genes and implied that a type of antisense RNA was synthesized from a sense RNA template by RNA-dependent RNA polymerase (RDR). Expression analyses revealed that the expression of novel abiotic stress-induced antisense RNA on 1,136 gene loci was reduced in the rdr1/2/6 mutants. RNase protection indicated that the RD29A antisense RNA and other RDR1/2/6-dependent antisense RNAs are involved in the formation of dsRNA. The accumulation of stress-inducible antisense RNA was decreased and increased in dcp5 and xrn4, respectively, but not changed in dcl2/3/4, nrpd1a and nrpd1b RNA-seq analyses revealed that the majority of the RDR1/2/6-dependent antisense RNA loci did not overlap with RDR1/2/6-dependent 20-30 nt RNA loci. Additionally, rdr1/2/6 mutants decreased the degradation rate of the sense RNA and exhibited arrested root growth during the recovery stage following a drought stress, whereas dcl2/3/4 mutants did not. Collectively, these results indicate that RDRs have stress-inducible antisense RNA synthesis activity and a novel biological function that is different from the known endogenous small RNA pathways from protein-coding genes. These data reveal a novel mechanism of RNA regulation during abiotic stress response that involves complex RNA degradation pathways.
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Affiliation(s)
- Akihiro Matsui
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Kei Iida
- Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Katsushi Yamaguchi
- NIBB Core Research Facilities, National Institute for Basic Biology, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Kayoko Mizuhashi
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Satoshi Takahashi
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Norio Kobayashi
- Computational Engineering Applications Unit, Advanced Center for Computing and Communication, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Shuji Shigenobu
- NIBB Core Research Facilities, National Institute for Basic Biology, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Kazuo Shinozaki
- Gene Discovery Research Group, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka-cho, Totsuka-ku, Yokohama, Kanagawa 244-0813, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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28
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Kim YG, Song JB, Kim JC, Kim JM, Yoo BH, Yun SB, Hwang DY, Lee HG. Note: Progress on the use of MgB 2 superconducting joint technique for the development of MgB 2 magnets for magnetic resonance imaging (MRI). Rev Sci Instrum 2017; 88:086105. [PMID: 28863663 DOI: 10.1063/1.4997257] [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: 06/07/2023]
Abstract
This note presents a superconducting joint technique for the development of MgB2 magnetic resonance imaging (MRI) magnets. The MgB2 superconducting joint was fabricated by a powder processing method using Mg and B powders to establish a wire-bulk-wire connection. The joint resistance measured using a field-decay method was <10-14 Ω, demonstrating that the proposed joint technique could be employed for developing "next-generation" MgB2 MRI magnets operating in the persistent current mode.
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Affiliation(s)
- Y G Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
| | - J B Song
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
| | - J C Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
| | - J M Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
| | - B H Yoo
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
| | - S B Yun
- Kiswire Advanced Technology Co., Ltd., Daejeon 34026, South Korea
| | - D Y Hwang
- Kiswire Advanced Technology Co., Ltd., Daejeon 34026, South Korea
| | - H G Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
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Kim JM, To TK, Matsui A, Tanoi K, Kobayashi NI, Matsuda F, Habu Y, Ogawa D, Sakamoto T, Matsunaga S, Bashir K, Rasheed S, Ando M, Takeda H, Kawaura K, Kusano M, Fukushima A, Takaho A E, Kuromori T, Ishida J, Morosawa T, Tanaka M, Torii C, Takebayashi Y, Sakakibara H, Ogihara Y, Saito K, Shinozaki K, Devoto A, Seki M. Erratum: Acetate-mediated novel survival strategy against drought in plants. Nat Plants 2017; 3:17119. [PMID: 28714955 DOI: 10.1038/nplants.2017.119] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This corrects the article DOI: 10.1038/nplants.2017.97.
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30
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Kim JM, To TK, Matsui A, Tanoi K, Kobayashi NI, Matsuda F, Habu Y, Ogawa D, Sakamoto T, Matsunaga S, Bashir K, Rasheed S, Ando M, Takeda H, Kawaura K, Kusano M, Fukushima A, Endo TA, Kuromori T, Ishida J, Morosawa T, Tanaka M, Torii C, Takebayashi Y, Sakakibara H, Ogihara Y, Saito K, Shinozaki K, Devoto A, Seki M. Acetate-mediated novel survival strategy against drought in plants. Nat Plants 2017; 3:17097. [PMID: 28650429 DOI: 10.1038/nplants.2017.97] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 05/25/2017] [Indexed: 05/19/2023]
Abstract
Water deficit caused by global climate changes seriously endangers the survival of organisms and crop productivity, and increases environmental deterioration1,2. Plants' resistance to drought involves global reprogramming of transcription, cellular metabolism, hormone signalling and chromatin modification3-8. However, how these regulatory responses are coordinated via the various pathways, and the underlying mechanisms, are largely unknown. Herein, we report an essential drought-responsive network in which plants trigger a dynamic metabolic flux conversion from glycolysis into acetate synthesis to stimulate the jasmonate (JA) signalling pathway to confer drought tolerance. In Arabidopsis, the ON/OFF switching of this whole network is directly dependent on histone deacetylase HDA6. In addition, exogenous acetic acid promotes de novo JA synthesis and enrichment of histone H4 acetylation, which influences the priming of the JA signalling pathway for plant drought tolerance. This novel acetate function is evolutionarily conserved as a survival strategy against environmental changes in plants. Furthermore, the external application of acetic acid successfully enhanced the drought tolerance in Arabidopsis, rapeseed, maize, rice and wheat plants. Our findings highlight a radically new survival strategy that exploits an epigenetic switch of metabolic flux conversion and hormone signalling by which plants adapt to drought.
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Affiliation(s)
- Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Taiko Kim To
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akihiro Matsui
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Keitaro Tanoi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Natsuko I Kobayashi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Fumio Matsuda
- Metabolic Engineering Laboratory, Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5, Yamadaoka, Suita, Osaka 565-0871, Japan
- Metabolomics Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yoshiki Habu
- Plant Physiology Research Unit, Division of Plant and Microbial Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Daisuke Ogawa
- Breeding Strategies Research Unit, Division of Basic Research, Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Takuya Sakamoto
- Department of Applied Biological Science, Graduate School of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Sachihiro Matsunaga
- Department of Applied Biological Science, Graduate School of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Khurram Bashir
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Sultana Rasheed
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Marina Ando
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Hiroko Takeda
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Kanako Kawaura
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Miyako Kusano
- Metabolomics Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Atsushi Fukushima
- Metabolome Informatics Research Team, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Takaho A Endo
- Laboratory for Integrative Genomics, RIKEN Centre for Integrative Medical Sciences, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Takashi Kuromori
- Gene Discovery Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Junko Ishida
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Taeko Morosawa
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Chieko Torii
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yumiko Takebayashi
- Plant Productivity System Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Hitoshi Sakakibara
- Plant Productivity System Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yasunari Ogihara
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
| | - Kazuki Saito
- Metabolomics Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kazuo Shinozaki
- Gene Discovery Research Group, RIKEN CSRS, 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Alessandra Devoto
- School of Biological Sciences, Plant Molecular Sciences, Centre for Systems and Synthetic Biology, Royal Holloway University of London, Egham TW20 0EX, UK
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Centre for Sustainable Resource Science (CSRS), 1-7-22 Suehiro, Tsurumi, Yokohama 230-0045, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
- Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, Totsuka, Yokohama 244-0813, Japan
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Lee JS, Kim JM, Seok J, Kim BJ. Correlation between socio-economic status and atopic dermatitis in Korean adults: the Korea national health and nutrition examination survey (2007-2014). J Eur Acad Dermatol Venereol 2017; 31:1509-1515. [PMID: 28516452 DOI: 10.1111/jdv.14343] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 04/19/2017] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Atopic dermatitis (AD) is one of the most common allergic diseases. Its prevalence has been increasing in recent decades. Socio-economic status is well-known risk factor of allergic diseases. OBJECTIVE This study was performed to investigate the relationship between socio-economic status and AD in Korean adults. METHODS Data were acquired from 47 351 men and women, ≥19 years of age who participated in the Korea National Health and Nutrition Examination Surveys (KNHANES) conducted from 2007 to 2014. The presence of AD was based on self-reported physician diagnosis of AD in the Health Interview Surveys. RESULTS The prevalence of AD was 3.1%, which decreased with increasing age. In univariate analysis, adults with AD were prone to be female, younger, never-married, well educated, lower household members, and urban dwelling (all P < 0.01). Monthly family income and smoking status were not associated with the presence of AD. The prevalence of hypertension, diabetes mellitus and asthma was higher in AD subjects (all P < 0.01), while obesity was not associated with adult AD. After adjusting for confounders, logistic regression analysis showed female sex (adjusted odds ratio [aOR]: 1.483, 95% CI: 1.268-1.734), age (P < 0.01), marital status (Single: aOR: 1.307, 95% CI: 1.012-1.690; Never-married: aOR: 1.938, 95% CI: 1.513-2.482), urban residence (aOR: 1.281, 95% CI: 1.045-1.569) and asthma (aOR: 1.788, 95% CI: 1.416-2.258) were associated with higher prevalence of AD (all P < 0.01). CONCLUSION Female sex, age, marital status, urban residence, and the presence of asthma are important risk factors of the prevalence of AD in Korean adults.
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Affiliation(s)
- J S Lee
- Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - J M Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - J Seok
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Han MH, Ryu JI, Kim CH, Kim JM, Cheong JH, Bak KH, Chun HJ. Influence of systemic bone mineral density on atlantoaxial subluxation in patients with rheumatoid arthritis. Osteoporos Int 2017; 28:1931-1938. [PMID: 28255666 DOI: 10.1007/s00198-017-3972-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 01/02/2017] [Accepted: 02/14/2017] [Indexed: 11/29/2022]
Abstract
UNLABELLED Osteopenia and osteoporosis were independent predictive factors for higher atlantoaxial subluxation occurrence in patients with lower body mass index. Our findings suggest that patients with rheumatoid arthritis with osteopenia or osteoporosis, particularly those with lower body mass index (BMI), should be screened regularly to determine the status of their cervical spines. INTRODUCTION Cervical spine involvement in rheumatoid arthritis (RA) patients may cause serious adverse effects on quality of life and overall health. This study aimed to evaluate the association between atlantodental interval (ADI), atlantoaxial subluxation (AAS), and systemic bone mineral density (BMD) based on BMI variations among established patients with RA. METHODS The ADI was transformed to the natural log scale to normalize distributions for all analyses. Multivariable linear regression analyses were used to identify independent predictive factors for ADI based on each BMD classification. Multivariate Cox regression analyses were also performed to identify independent predictive factors for the risk of AAS, which were classified by tertile groups of BMI. RESULTS A total of 1220 patients with RA who had undergone at least one or more cervical radiography and BMD assessments were identified and enrolled. We found that the association between BMD and ADI (β, -0.029; 95% CI, -0.059 to 0.002; p = 0.070) fell short of achieving statistical significance. However, the ADI showed a 3.6% decrease per 1 BMI increase in the osteoporosis group (β, -0.036; 95% CI, -0.061 to -0.011; p = 0.004). The osteopenia and osteoporosis groups showed about a 1.5-fold and a 1.8-fold increased risk of AAS occurrence among the first tertile of the BMI group. CONCLUSIONS Our study showed a possible association between lower BMD and AAS occurrence in patients with RA with lower BMI. Further studies are needed to confirm our findings.
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Affiliation(s)
- M H Han
- Department of Neurosurgery, Hanyang University Guri Hospital, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 471-701, South Korea
| | - J I Ryu
- Department of Neurosurgery, Hanyang University Guri Hospital, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 471-701, South Korea.
| | - C H Kim
- Department of Neurosurgery, Hanyang University Guri Hospital, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 471-701, South Korea
| | - J M Kim
- Department of Neurosurgery, Hanyang University Guri Hospital, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 471-701, South Korea
| | - J H Cheong
- Department of Neurosurgery, Hanyang University Guri Hospital, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 471-701, South Korea
| | - K H Bak
- Department of Neurosurgery, Hanyang University Medical Center, 222-1, Wangsimni-ro, Seongdong-gu, Seoul, 133-792, South Korea
| | - H J Chun
- Department of Neurosurgery, Hanyang University Medical Center, 222-1, Wangsimni-ro, Seongdong-gu, Seoul, 133-792, South Korea
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Abstract
Under hypotonic conditions, the regulatory volume decrease (RVD) is essential to maintain physiological homeostasis and functions in diverse biological systems. Intracellular Ca2+ has been reported as an important mediator of this response, but the underlying Ca2+ mechanism responsible for RVD is still controversial. Here we investigate the role of Ca2+ in the RVD response using live-cell imaging, microspectrofluorimetry, and a patch-clamp technique. A typical RVD was observed in submandibular gland acinar cells after swelling in a hypotonic solution, whereas intracellular Ca2+ chelation completely inhibited the RVD response. The incidence and magnitude of the Ca2+ transient were proportional to the degree of hypotonicity of the extracellular medium, and there was a close relationship between intracellular Ca2+ concentration and the volumetric changes of the cells. Notably, this response was mediated by Ca2+-induced Ca2+ release, which is triggered by Ca2+ influx via stretch-activated TRPM7 channels. Furthermore, we detected the generation of Cl- currents in the swelling acinar cells upon hypotonic stress, and the current profile matched that of the Ca2+-activated Cl- currents. A specific inhibitor of Cl- currents also inhibited the RVD response. In conclusion, an intracellular Ca2+ increase in response to osmotically induced cell swelling plays a critical role in RVD in salivary gland acinar cells.
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Affiliation(s)
- J M Kim
- 1 Department of Physiology, College of Dentistry, Seoul National University, & Dental Research Institute, Seoul, Korea
| | - S Choi
- 1 Department of Physiology, College of Dentistry, Seoul National University, & Dental Research Institute, Seoul, Korea
| | - K Park
- 1 Department of Physiology, College of Dentistry, Seoul National University, & Dental Research Institute, Seoul, Korea
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Ryu S, Park S, Lee JH, Kim YR, Na HS, Lim HS, Choi HY, Hwang IY, Lee JG, Park ZW, Oh WY, Kim JM, Choi SE. A Study on CYP2C19 and CYP2D6 Polymorphic Effects on Pharmacokinetics and Pharmacodynamics of Amitriptyline in Healthy Koreans. Clin Transl Sci 2017; 10:93-101. [PMID: 28296334 PMCID: PMC5355968 DOI: 10.1111/cts.12451] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 01/13/2017] [Indexed: 12/16/2022] Open
Abstract
We performed a double-blinded, genotype-based stratification study to explore the pharmacokinetics and pharmacodynamics of amitriptyline according to CYP2C19 and CYP2D6 genotype in Korean subjects. Twenty-four healthy adults were grouped by genotype of CYP2C19 and CYP2D6. After a single dose of 25 mg of amitriptyline, blood samples were collected and anticholinergic effects were measured. The extent of N-demethylation of amitriptyline significantly decreased in subjects carrying two nonfunctional alleles of CYP2C19. The extent of hydroxylation of amitriptyline or nortriptyline was significantly reduced in subjects carrying two CYP2D6 decreased functional alleles compared with those with no or one decreased functional allele. The overall metabolic pathway of amitriptyline was more likely to be dominated by CYP2C19 than CYP2D6. The gene variations of CYP2C19 and CYP2D6 did not change the pharmacodynamic effect. The findings of this study will provide useful information on individualized drug treatment with amitriptyline considering both CYP2D6 and CYP2C19 gene variations.
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Affiliation(s)
- S Ryu
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - S Park
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - J H Lee
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - Y R Kim
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - H S Na
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - H S Lim
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Republic of Korea
| | - H Y Choi
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Republic of Korea
| | - I Y Hwang
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - J G Lee
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - Z W Park
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - W Y Oh
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - J M Kim
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - S E Choi
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
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Abstract
Abstract
HOX genes are transcription factors that play important roles in body patterning and cell fate specification during normal development. Among of these, HOXB5, is involved in a variety of developmental processes, particularly during the enteric nervous system (ENS) development, and thus, abnormalities in HOXB5 function during embryo stages lead to Hirschsprung's disease. Importantly, many HOX genes, including HOXB5, are expressed not only during embryogenesis but also in adults and are dysregulated in various cancers. In a previous study, we found aberrant overexpression of HOXB5 in breast cancer tissues and cell lines and demonstrated that HOXB5 is important in the regulation of cell proliferation in breast cancer cells. Also, HOXB5 induces invasive potential through epithelial-mesenchymal transition (EMT). The relationship between HOXB5 and phenotypic changes in MCF7 breast cancer cells has been studied, however, HOXB5 functions as a transcription factor and its involvement in signaling pathways remain unclear. In this study, we selected putative downstream target genes of HOXB5, such as interleukin (IL)-6, Snail2 and epidermal growth factor receptor (EGFR) by PCR array analysis. These genes have been reported to be involved in cacner progression, which is characterised by increased growth speed and invasiveness of the tumor cells. Here, we discovered that HOXB5 transcriptionally upregulates the promoter activity of these genes. Chromatin immunoprecipitation (ChIP) analysis to confirm direct binding of HOXB5 to the promoter region is now ongoing. Since we found that HOXB5 induces EGFR protein expression and SRC phosphorylation, we will further investigate signaling pathway components to understand the underlying molecular mechanisms of HOXB5 action in breast cancer.
Citation Format: Kim JM, Lee J-Y, Kim MH. The role and regulation mechanism of HOXB5 in human breaset cancer cells [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P5-05-05.
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Affiliation(s)
- JM Kim
- Yonsei University College of Medicine, Seoul, Korea
| | - J-Y Lee
- Yonsei University College of Medicine, Seoul, Korea
| | - MH Kim
- Yonsei University College of Medicine, Seoul, Korea
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Kim MJ, Kim TH, Park Y, Lee HH, Kim JM, Lim H, Hwang SY. A study of the dietary intakes by the pre-pregnancy body mass index in pregnant women. CLIN EXP OBSTET GYN 2017; 44:27-29. [PMID: 29714861] [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
The authors analyzed the difference in weight gain and nutrition, according to the BMI before pregnancy. They divided 91 subjects into BMI group I (normal weight) and BMI group 2 (overweight) before pregnancy. In general, the BMI before pregnancy did not influence weight gain but, in the BMI group 2, the intakes of all of cholesterol, total fatty acids, vitamin B 12, iron, and copper were significantly higher. Neither group exhibited sufficient intake of vitamin B 1, vitamin B2, niacin, vitamin B6, folic acid, calcium, magnesium, iron, or zinc. Pre-pregnancy weight management and nutrition during pregnancy is very important.
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Kim TH, Lee HH, Kim JM. Efficacy of computed tomography for the diagnosis of postpartum hemorrhage. CLIN EXP OBSTET GYN 2017; 44:244-246. [PMID: 29746031] [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
The authors evaluated the diagnosis of the cause of post-partum haemorrhage (PPH) by computed tomography (CT). They retrospectively transferred 15 patients with PPH from local clinics between January 2010 and December 2011. CT revealed diverse causes. Only two cases had no additional finding on CT. They found deep tearing extending to the lower uterine segment and uterine artery in two cases, whereas five cases were an arteriovenous malformation, and one case was a uterine pseudoaneurysm.
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Choi YI, Jakhongir M, Choi SJ, Kim L, Park IS, Han JY, Kim JM, Chu YC. High-quality cell block preparation from scraping of conventional cytology slide: a technical report on a modified cytoscrape cell block technique. Malays J Pathol 2016; 38:295-304. [PMID: 28028300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND Immunocytochemistry (ICC) on formalin-fixed paraffin embedded cell blocks is an ancillary tool commonly recruited for differential diagnoses of fine needle aspiration cytology (FNAC) samples. However, the quality of conventional cell blocks in terms of adequate cellularity and evenness of distribution of cytologic material is not always satisfactory for ICC. We introduce a modified agarose-based cytoscrape cell block (CCB) technique that can be effectively used for the preparation of cell blocks from scrapings of conventional FNAC slides. METHODS A decoverslipped FNAC slide was mounted with a small amount of water. The cytological material was scraped off the slide into a tissue mold by scraping with a cell scraper. The cytoscrape material was pelleted by centrifugation and pre-embedded in ultra-low gelling temperature agarose and then re-embedded in conventional agarose. The final agarose gel disk was processed and embedded in paraffin. RESULTS The quality of the ICC on the CCB sections was identical to that of the immunohistochemical stains on histological sections. By scrapping and harvesting the entirety of the cytological material off the cytology slide into a compact agarose cell button, we could avoid the risk of losing diagnostic material during the CCB preparation. CONCLUSION This modified CCB technique enables concentration and focusing of minute material while maintaining the entire amount of the cytoscrape material on the viewing spot of the CCB sections. We believe this technique can be effectively used to improve the level of confidence in diagnosis of FNAC especially when the FNAC slides are the only sample available.
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Affiliation(s)
- Y I Choi
- Inha University Hospital, Department of Pathology, 27, Inhang-ro, Jung-gu, Incheon, 22332, Rep. of Korea.
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Yang MY, Kim JM, Kim GW, Mun JH, Song M, Ko HC, Kim BS, Kim HS, Kim MB. The clinical and histopathological characteristics of early-onset basal cell carcinoma in Asians. J Eur Acad Dermatol Venereol 2016; 31:75-80. [PMID: 27357061 DOI: 10.1111/jdv.13793] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 05/02/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Basal cell carcinoma (BCC) is by far the most common cancer in white populations. In addition, recent reports have demonstrated an increasing incidence of BCC in Korea. We have observed a significant number of early-onset BCC cases in which the disease occurred in patients younger than 50 years. OBJECTIVE To investigate the clinicopathological characteristics of early-onset BCC in an Asian population, specifically in Koreans. METHODS One hundred and five patients with early-onset BCC were enrolled from a total of 1047 BCC patients who underwent surgery between January 1997 and December 2014 (942 patients over the age of 50 years were designated as the control group). RESULTS Early-onset BCC accounted for 10.03% of all 1047 cases and the incidence over time displayed an incremental trend. The early-onset group displayed similar results as the control group, with a predominance of female BCC patients and the majority of tumours displaying the following characteristics: small in size, occurring in sun-exposed areas and belonging to the noduloulcerative clinical subtype and nodular histopathological subtype. In comparison with a previous study in a Western population, the incidence of the disease in non-exposed areas of the body, as well as the proportion of tumours of the superficial histological subtype, were lower in Asian patients. CONCLUSION Although the clinicopathological characteristics of BCC are well-known, these characteristics have not been determined for early-onset BCC in an Asian population. Therefore, this study is the first report on early-onset BCC in Asians, specifically in a Korean patient group.
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Affiliation(s)
- M Y Yang
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - J M Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - G W Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - J H Mun
- Department of Dermatology, School of Medicine, Seoul National University, Seoul, Korea
| | - M Song
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - H C Ko
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - B S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - H S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - M B Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
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Abstract
The emergence of programmed death-ligand 1 (PD-L1)/programmed death-1 (PD-1)-targeted therapy has demonstrated the importance of the PD-L1 : PD-1 interaction in inhibiting anticancer T-cell immunity in multiple human cancers, generating durable responses and extended overall survival. However, not all patients treated with PD-L1/PD-1-targeted therapy experience tumor shrinkage, durable responses, or prolonged survival. To extend such benefits to more cancer patients, it is necessary to understand why some patients experience primary or secondary immune escape, in which the immune response is incapable of eradicating all cancer cells. Understanding immune escape from PD-L1/PD-1-targeted therapy will be important to the development of rational immune-combination therapy and predictive diagnostics and to the identification of novel immune targets. Factors that likely relate to immune escape include the lack of strong cancer antigens or epitopes recognized by T cells, minimal activation of cancer-specific T cells, poor infiltration of T cells into tumors, downregulation of the major histocompatibility complex on cancer cells, and immunosuppressive factors and cells in the tumor microenvironment. Precisely identifying and understanding these mechanisms of immune escape in individual cancer patients will allow for personalized cancer immunotherapy, in which monotherapy and combination immunotherapy are chosen based on the presence of specific immune biology. This approach may enable treatment with immunotherapy without inducing immune escape, resulting in a larger proportion of patients obtaining clinical benefit.
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Affiliation(s)
- J M Kim
- Genentech, South San Francisco
| | - D S Chen
- Genentech, South San Francisco Stanford Medical Oncology, Stanford University School of Medicine, Stanford, USA
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Sako K, Kim JM, Matsui A, Nakamura K, Tanaka M, Kobayashi M, Saito K, Nishino N, Kusano M, Taji T, Yoshida M, Seki M. Ky-2, a Histone Deacetylase Inhibitor, Enhances High-Salinity Stress Tolerance in Arabidopsis thaliana. Plant Cell Physiol 2016; 57:776-83. [PMID: 26657894 DOI: 10.1093/pcp/pcv199] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 08/14/2015] [Accepted: 12/05/2015] [Indexed: 05/20/2023]
Abstract
Adaptation to environmental stress requires genome-wide changes in gene expression. Histone modifications are involved in gene regulation, but the role of histone modifications under environmental stress is not well understood. To reveal the relationship between histone modification and environmental stress, we assessed the effects of inhibitors of histone modification enzymes during salinity stress. Treatment with Ky-2, a histone deacetylase inhibitor, enhanced high-salinity stress tolerance in Arabidopsis. We confirmed that Ky-2 possessed inhibition activity towards histone deacetylases by immunoblot analysis. To investigate how Ky-2 improved salt stress tolerance, we performed transcriptome and metabolome analysis. These data showed that the expression of salt-responsive genes and salt stress-related metabolites were increased by Ky-2 treatment under salinity stress. A mutant deficient in AtSOS1(Arabidopis thaliana SALT OVERLY SENSITIVE 1), which encodes an Na(+)/H(+)antiporter and was among the up-regulated genes, lost the salinity stress tolerance conferred by Ky-2. We confirmed that acetylation of histone H4 at AtSOS1 was increased by Ky-2 treatment. Moreover, Ky-2 treatment decreased the intracellular Na(+)accumulation under salinity stress, suggesting that enhancement of SOS1-dependent Na(+)efflux contributes to increased high-salinity stress tolerance caused by Ky-2 treatment.
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Affiliation(s)
- Kaori Sako
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan
| | - Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan
| | - Akihiro Matsui
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan
| | - Kotaro Nakamura
- Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502 Japan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan
| | - Makoto Kobayashi
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan
| | - Kazuki Saito
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8522 Japan
| | - Norikazu Nishino
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, 808-0196 Japan
| | - Miyako Kusano
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572 Japan
| | - Teruaki Taji
- Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502 Japan
| | - Minoru Yoshida
- Chemical Genomics Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198 Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045 Japan Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka-cho, Totsuka-ku, Yokohama, Kanagawa, 244-0813 Japan Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012 Japan
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Osborn CY, Mayberry LS, Kim JM. Medication adherence may be more important than other behaviours for optimizing glycaemic control among low-income adults. J Clin Pharm Ther 2016; 41:256-9. [PMID: 26939721 DOI: 10.1111/jcpt.12360] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 11/30/2022]
Abstract
WHAT IS KNOWN Patients with type 2 diabetes mellitus (T2DM) are required to perform multiple self-care behaviours to achieve and maintain optimal glycaemic control (HbA1c), which prevents complications and premature mortality. Patients with T2DM and low socioeconomic status (SES) are more likely to have suboptimal HbA1c, often due to being less adherent to recommended self-care activities than their higher-SES counterparts. OBJECTIVE Although studies support performing certain diabetes self-care behaviours for optimizing glycaemic control, there is limited research on the relative importance of each behaviour for this purpose. Identifying what behaviours are most important for HbA1c among low-SES patients with T2DM would be particularly useful for informing policy and intervention efforts for this high-risk group. METHODS In a cross-sectional study of 314 adults with T2DM and low SES, we used the Summary of Diabetes Self-Care Activities to assess self-care behaviours and multivariate models to test which behaviours were associated with lower HbA1c. RESULTS AND DISCUSSION Only medication adherence was significantly associated with lower HbA1c after adjusting for the other self-care behaviours (β = -0·14, P = 0·028) and further adjusting for demographic and diabetes characteristics (β = -0·16, P = 0·024). WHAT IS NEW Medication adherence may be the most important self-care behaviour for glycaemic control among adults with T2DM and low SES. CONCLUSION Focused efforts to improve medication adherence among low-SES patient populations may improve glycaemic control.
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Affiliation(s)
- C Y Osborn
- Vanderbilt University Medical Center, Nashville, TN, USA
| | - L S Mayberry
- Vanderbilt University Medical Center, Nashville, TN, USA
| | - J M Kim
- Texas A&M Health Science Center, Bryan, TX, USA
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Koehler SM, Guerra SM, Kim JM, Sakamoto S, Lovy AJ, Hausman MR. Outcome of arthroscopic reduction association of the scapholunate joint. J Hand Surg Eur Vol 2016; 41:48-55. [PMID: 25827144 DOI: 10.1177/1753193415577335] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 01/05/2015] [Indexed: 02/03/2023]
Abstract
This study evaluates the arthroscopic reduction association scapholunate technique and outcomes. A total of 18 patients with chronic scapholunate instability with mean follow-up of 36 months were reviewed. Postoperatively, the mean visual analogue score was 2.5 and the mean DASH score was 8. The grip strength was 27 kg on the operative side compared with 32 kg on the uninjured side. The mean wrist flexion was 46° and extension was 56°. Seven patients had complications. Six patients had scapholunate joint widening, one had windshield-wipering of the screws with loss of reduction, and two demonstrated progression of scapholunate advanced collapse deformity. Four patients underwent revision surgeries: two revision arthroscopic reduction association scapholunates and two proximal row carpectomies. A preoperative scapholunate gap of greater than 5 mm and the presence of scapholunate advanced collapse Grade I were both predictive of a complication or revision surgery. Patients with a scapholunate gap of greater than 5 mm or scapholunate advanced collapse had statistically higher complications rates.Level of Evidence IV.
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Affiliation(s)
- S M Koehler
- Department of Orthopaedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | - S M Guerra
- Department of Orthopaedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | - J M Kim
- Department of Orthopaedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | - S Sakamoto
- Department of Orthopaedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | - A J Lovy
- Department of Orthopaedic Surgery, Mount Sinai Hospital, New York, NY, USA
| | - M R Hausman
- Department of Orthopaedic Surgery, Mount Sinai Hospital, New York, NY, USA
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Kim JM, Kwon CHD, Joh JW, Han SB, Sinn DH, Choi GS, Kang ES, Lee JH, Kim GS, Lee SK. Case-matched comparison of ABO-incompatible and ABO-compatible living donor liver transplantation. Br J Surg 2015; 103:276-83. [PMID: 26695115 DOI: 10.1002/bjs.10048] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 06/29/2015] [Accepted: 10/07/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND ABO-incompatible (ABO-I) living donor liver transplantation (LDLT) has a high success rate. There are few detailed comparisons regarding biliary complications, infective complications and patient survival between ABO-compatible (ABO-C) and ABO-I LDLT. The aim was to compare the outcomes of ABO-I LDLT with those of ABO-C LDLT using the matched-pairs method. METHODS Patients who underwent ABO-I LDLT procedures between 2010 and 2013 were studied. They were matched for significant variables with patients who had ABO-C LDLT (1:2 matching). RESULTS Forty-seven ABO-I LDLT procedures were included. Ninety-four patients who had ABO-C LDLT were selected as a comparator group. The incidence of cytomegalovirus, bacterial and fungal infections during the first 3 months was similar after ABO-I LDLT and ABO-C LDLT (85 versus 76 per cent, 28 versus 37 per cent, and 13 versus 20 per cent, respectively). Antibody-mediated rejection occurred after two procedures within 2 weeks of transplantation, but liver function improved with plasma exchange in both patients. There were no differences in the rate of acute rejection and biliary complications between ABO-I and ABO-C groups (P = 0.478 and P = 0.511 respectively). Three patients who had ABO-I LDLT developed diffuse intrahepatic biliary complications and progressed to graft failure. The 1-, 2- and 3-year patient survival rates after ABO-I LDLT and ABO-C LDLT were 89 versus 87 per cent, 85 versus 83 per cent, and 85 versus 79 per cent, respectively. CONCLUSION The short-term outcomes of ABO-I LDLT were comparable to those of ABO-C LDLT in this study. ABO-I LDLT is an effective and safe transplant option with the potential to expand the pool of live donors.
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Affiliation(s)
- J M Kim
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - C H D Kwon
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J-W Joh
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S B Han
- Department of Anaesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Sinn
- Division of Gastroenterology, Department of Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - G-S Choi
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - E-S Kang
- Department of Laboratory Medicine and Genetics, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J H Lee
- Division of Gastroenterology, Department of Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - G S Kim
- Department of Anaesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S-K Lee
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
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Lee JH, Subhadra B, Son YJ, Kim DH, Park HS, Kim JM, Koo SH, Oh MH, Kim HJ, Choi CH. Phylogenetic group distributions, virulence factors and antimicrobial resistance properties of uropathogenic Escherichia coli strains isolated from patients with urinary tract infections in South Korea. Lett Appl Microbiol 2015; 62:84-90. [PMID: 26518617 DOI: 10.1111/lam.12517] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [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: 07/21/2015] [Revised: 10/07/2015] [Accepted: 10/25/2015] [Indexed: 12/21/2022]
Abstract
UNLABELLED Urinary tract infections (UTIs) are one of the most common diseases by which humans seek medical help and are caused mainly by uropathogenic Escherichia coli (UPEC). Studying the virulence and antibiotic resistance of UPEC with respect to various phylogenetic groups is of utmost importance in developing new therapeutic agents. Thus, in this study, we analysed the virulence factors, antibiotic resistance and phylogenetic groups among various UPEC isolates from children with UTIs. The phylogenetic analysis revealed that majority of the strains responsible for UTIs belonged to the phylogenetic groups B2 and D. Of the 58 E. coli isolates, 79·31% belonged to group B2, 15·51% to group D, 3·44% to group A and 1·72% to B1. Simultaneously, the number of virulence factors and antibiotic resistance exhibited were also significantly high in groups B2 and D compared to other groups. Among the isolates, 44·8% were multidrug resistant and of that 73% belonged to the phylogenetic group B2, indicating the compatibility of antibiotic resistance and certain strains carrying virulence factor genes. The antibiotic resistance profiling of UPEC strains elucidates that the antimicrobial agents such as chloramphenicol, cefoxitin, cefepime, ceftazidime might still be used in the therapy for treating UTIs. SIGNIFICANCE AND IMPACT OF THE STUDY As the antibiotic resistance pattern of uropathogenic Escherichia coli varies depending on different geographical regions, the antibiotic resistance pattern from this study will help the physicians to effectively administer antibiotic therapy for urinary tract infections. In addition, the frequency of virulence factors and antibiotic resistance genes among various phylogenic groups could be effectively used to draw new targets for uropathogenic Escherichia coli antibiotic-independent therapies. The study emphasizes need of public awareness on multidrug resistance and for more prudent use of antimicrobials.
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Affiliation(s)
- J H Lee
- Department of Pediatrics, Chungnam National University Hospital, Daejeon, Korea
| | - B Subhadra
- Department of Microbiology, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Y-J Son
- Department of Microbiology, College of Medicine, Chungnam National University, Daejeon, Korea
| | - D H Kim
- Department of Microbiology, College of Medicine, Chungnam National University, Daejeon, Korea
| | - H S Park
- Department of Microbiology, College of Medicine, Chungnam National University, Daejeon, Korea
| | - J M Kim
- Department of Pediatrics, Chungnam National University Hospital, Daejeon, Korea
| | - S H Koo
- Department of Laboratory Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - M H Oh
- Department of Nanobiomedical Science, Dankook University, Cheonan, Korea
| | - H-J Kim
- Department of Microbiology, College of Medicine, Chungnam National University, Daejeon, Korea
| | - C H Choi
- Department of Microbiology, College of Medicine, Chungnam National University, Daejeon, Korea
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Kim JM, Ren D, Reverter A, Roura E. A regulatory gene network related to the porcine umami taste receptor (TAS1R1/TAS1R3). Anim Genet 2015; 47:114-9. [PMID: 26554867 DOI: 10.1111/age.12374] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2015] [Indexed: 11/28/2022]
Abstract
Taste perception plays an important role in the mediation of food choices in mammals. The first porcine taste receptor genes identified, sequenced and characterized, TAS1R1 and TAS1R3, were related to the dimeric receptor for umami taste. However, little is known about their regulatory network. The objective of this study was to unfold the genetic network involved in porcine umami taste perception. We performed a meta-analysis of 20 gene expression studies spanning 480 porcine microarray chips and screened 328 taste-related genes by selective mining steps among the available 12,320 genes. A porcine umami taste-specific regulatory network was constructed based on the normalized coexpression data of the 328 genes across 27 tissues. From the network, we revealed the 'taste module' and identified a coexpression cluster for the umami taste according to the first connector with the TAS1R1/TAS1R3 genes. Our findings identify several taste-related regulatory genes and extend previous genetic background of porcine umami taste.
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Affiliation(s)
- J M Kim
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation Hartley Teakle 83, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - D Ren
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation Hartley Teakle 83, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - A Reverter
- CSIRO Agriculture Flagship, Queensland Bioscience Precinct, 306 Carmody Road, St Lucia, Queensland, 4067, Australia
| | - E Roura
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation Hartley Teakle 83, The University of Queensland, St Lucia, Queensland, 4072, Australia
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Kim WI, Kim JM, Kim GW, Mun JH, Song M, Kim HS, Kim BS, Kim MB, Ko HC. Subacute cutaneous lupus erythematosus induced by capecitabine: 5-FU was innocent. J Eur Acad Dermatol Venereol 2015; 30:e163-e164. [PMID: 26551520 DOI: 10.1111/jdv.13468] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- W I Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - J M Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - G W Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - J H Mun
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - M Song
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - H S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - B S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - M B Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - H C Ko
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea. .,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea. .,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea.
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48
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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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49
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Kim SW, Bae KY, Kim JM, Shin IS, Hong YJ, Ahn Y, Jeong MH, Berk M, Yoon JS. The use of statins for the treatment of depression in patients with acute coronary syndrome. Transl Psychiatry 2015; 5:e620. [PMID: 26285130 PMCID: PMC4564569 DOI: 10.1038/tp.2015.116] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 06/26/2015] [Accepted: 07/08/2015] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate the effect of statins for the treatment of depression in individuals with acute coronary syndrome (ACS). We used 1-year follow-up data of a 24-week double-blind, placebo-controlled trial of escitalopram and a naturalistic prospective observational cohort study. Of 446 participants with comorbid depressive disorders and ACS at baseline, 300 participated in a randomised escitalopram trial and the remaining 146 participated in a naturalistic observational study. The participants in the two studies were approached for a 1-year follow-up investigation. Treatment response rates, defined as a ⩾ 50% reduction in the Hamilton Depression Rating Scale (HAM-D) and Beck Depression Inventory (BDI) scores, were used as the outcome variables. In the escitalopram trial, both HAM-D and BDI response rates were highest in patients taking escitalopram and statins together and lowest in patients receiving neither medication. Logistic regression analyses revealed that statin use was significantly associated with higher response rates on both the HAM-D and BDI at 1 year, whereas no such associations were found for escitalopram. In the naturalistic observational study, the response rates at 1 year did not differ significantly by statin use. Instead, the HAM-D response rate was significantly higher in patients taking lipophilic statins than in those who did not. In conclusion, statins may be effective for the treatment of depression independent of medical status and escitalopram use, and they may potentiate the antidepressant action of serotonergic antidepressants in patients with ACS.
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Affiliation(s)
- S W Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - K Y Bae
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - J M Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea,Department of Psychiatry, Chonnam National University Medical School, 160 Baekseoro, Donggu, Gwangju 501-746, Korea. E-mail:
| | - I S Shin
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - Y J Hong
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - Y Ahn
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - M H Jeong
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - M Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Geelong, VIC, Australia,Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia
| | - J S Yoon
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
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50
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Kim JM, Park KY, Lee WJ, Byun JS, Kim JK, Park MS, Ahn SW, Shin HW. The cortical contrast accumulation from brain computed tomography after endovascular treatment predicts symptomatic hemorrhage. Eur J Neurol 2015; 22:1453-8. [PMID: 26130213 DOI: 10.1111/ene.12764] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 05/07/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE The prognostic value of contrast accumulation from non-contrast brain computed tomography taken immediately after endovascular reperfusion treatment in acute ischaemic stroke patients to predict symptomatic hemorrhage was studied. METHODS Between July 2007 and August 2014, acute anterior circulation ischaemic stroke patients who were treated by intra-arterial thrombolysis or thrombectomy were included. Contrast accumulation was defined as a high attenuation area from non-contrast brain computed tomography immediately taken after endovascular reperfusion treatment, and patients were categorized into three groups according to the presence and location of contrast: (i) negative, (ii) cortical involvement and (iii) non-cortical involvement. The rates of symptomatic hemorrhage after 24 h and functional outcome at discharge were compared between patients with and without cortical involvement. RESULTS Of 64 patients who were treated by endovascular intervention, contrast accumulation was detected in 56, including 33 patients with cortical involvement and 23 patients without cortical involvement. The cortical involvement pattern was more frequently associated with symptomatic hemorrhage (13 vs. 1 patient, P = 0.003) and with grave outcome at discharge with modified Rankin Scale 5 or 6 (14 vs. 4, P = 0.048) than the non-cortical involvement group. Multivariate logistic regression analysis including initial collateral status and occlusion site disclosed that cortical involvement pattern independently predicted symptomatic hemorrhage after endovascular treatment (odds ratio 19.0, confidence interval 1.6-227.6, P = 0.020). CONCLUSION Our study provides evidence that the cortical involvement of contrast accumulation is associated with symptomatic hemorrhage after endovascular reperfusion treatment.
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Affiliation(s)
- J M Kim
- Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Y Park
- Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - W J Lee
- Department of Neuroradiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - J S Byun
- Department of Neuroradiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - J K Kim
- Department of Neuroradiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - M S Park
- Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - S W Ahn
- Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - H W Shin
- Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
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