1
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Kaimori JY, Kikkawa Y, Motooka D, Namba-Hamano T, Takuwa A, Okazaki A, Kobayashi K, Tanigawa A, Kotani Y, Uno Y, Yoshimi K, Hattori K, Asahina Y, Kajimoto S, Doi Y, Oka T, Sakaguchi Y, Mashimo T, Sekiguchi K, Nakaya A, Nomizu M, Isaka Y. A heterozygous LAMA5 variant may contribute to slowly progressive, vinculin-enhanced familial FSGS and pulmonary defects. JCI Insight 2022; 7:158378. [PMID: 36173685 PMCID: PMC9746903 DOI: 10.1172/jci.insight.158378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 09/20/2022] [Indexed: 01/12/2023] Open
Abstract
The LAMA5 gene encodes laminin α5, an indispensable component of glomerular basement membrane and other types of basement membrane. A homozygous pathological variant in LAMA5 is known to cause a systemic developmental syndrome including glomerulopathy. However, the roles of heterozygous LAMA5 gene variants in human renal and systemic diseases have remained unclear. We performed whole-exome sequencing analyses of a family with slowly progressive nephropathy associated with hereditary focal segmental glomerulosclerosis, and we identified what we believe to be a novel probable pathogenic variant of LAMA5, NP_005551.3:p.Val3687Met. In vitro analyses revealed cell type-dependent changes in secretion of variant laminin α5 laminin globular 4-5 (LG4-5) domain. Heterozygous and homozygous knockin mice with a corresponding variant of human LAMA5, p.Val3687Met, developed focal segmental glomerulosclerosis-like pathology with reduced laminin α5 and increased glomerular vinculin levels, which suggested that impaired cell adhesion may underlie this glomerulopathy. We also identified pulmonary defects such as bronchial deformity and alveolar dilation. Reexaminations of the family revealed phenotypes compatible with reduced laminin α5 and increased vinculin levels in affected tissues. Thus, the heterozygous p.Val3687Met variant may cause a new syndromic nephropathy with focal segmental glomerulosclerosis through possibly defective secretion of laminin α5. Enhanced vinculin may be a useful disease marker.
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Affiliation(s)
- Jun-Ya Kaimori
- Department of Inter-Organ Communication Research in Kidney Diseases and,Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, and,Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Tomoko Namba-Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ayako Takuwa
- Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Atsuko Okazaki
- Department of Genome Informatics, Osaka University Graduate School of Medicine, Osaka, Japan.,Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kaori Kobayashi
- Department of Genome Informatics, Osaka University Graduate School of Medicine, Osaka, Japan.,Medical Solutions Division, NEC Corporation, Tokyo, Japan
| | | | - Yuko Kotani
- Institute of Experimental Animal Sciences and
| | | | - Kazuto Yoshimi
- Genome Editing Research and Development (R&D) Center, Osaka University Graduate School of Medicine, Osaka, Japan.,Division of Animal Genetics, Laboratory Animal Research Center, The Institute of Medical Science
| | - Koki Hattori
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yuta Asahina
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Sachio Kajimoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yohei Doi
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tatsufumi Oka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yusuke Sakaguchi
- Department of Inter-Organ Communication Research in Kidney Diseases and,Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomoji Mashimo
- Institute of Experimental Animal Sciences and,Genome Editing Research and Development (R&D) Center, Osaka University Graduate School of Medicine, Osaka, Japan.,Division of Animal Genetics, Laboratory Animal Research Center, The Institute of Medical Science;,Division of Genome Engineering, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science
| | - Kiyotoshi Sekiguchi
- Division of Matrixome Research and Application, Institute for Protein Research; and
| | - Akihiro Nakaya
- Department of Genome Informatics, Osaka University Graduate School of Medicine, Osaka, Japan.,Laboratory of Genome Data Science, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
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2
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Gurumurthy CB, O'Brien AR, Quadros RM, Adams J, Alcaide P, Ayabe S, Ballard J, Batra SK, Beauchamp MC, Becker KA, Bernas G, Brough D, Carrillo-Salinas F, Chan W, Chen H, Dawson R, DeMambro V, D'Hont J, Dibb K, Eudy JD, Gan L, Gao J, Gonzales A, Guntur A, Guo H, Harms DW, Harrington A, Hentges KE, Humphreys N, Imai S, Ishii H, Iwama M, Jonasch E, Karolak M, Keavney B, Khin NC, Konno M, Kotani Y, Kunihiro Y, Lakshmanan I, Larochelle C, Lawrence CB, Li L, Lindner V, Liu XD, Lopez-Castejon G, Loudon A, Lowe J, Jerome-Majeweska L, Matsusaka T, Miura H, Miyasaka Y, Morpurgo B, Motyl K, Nabeshima YI, Nakade K, Nakashiba T, Nakashima K, Obata Y, Ogiwara S, Ouellet M, Oxburgh L, Piltz S, Pinz I, Ponnusamy MP, Ray D, Redder RJ, Rosen CJ, Ross N, Ruhe MT, Ryzhova L, Salvador AM, Alam SS, Sedlacek R, Sharma K, Smith C, Staes K, Starrs L, Sugiyama F, Takahashi S, Tanaka T, Trafford A, Uno Y, Vanhoutte L, Vanrockeghem F, Willis BJ, Wright CS, Yamauchi Y, Yi X, Yoshimi K, Zhang X, Zhang Y, Ohtsuka M, Das S, Garry DJ, Hochepied T, Thomas P, Parker-Thornburg J, Adamson AD, Yoshiki A, Schmouth JF, Golovko A, Thompson WR, Lloyd KCK, Wood JA, Cowan M, Mashimo T, Mizuno S, Zhu H, Kasparek P, Liaw L, Miano JM, Burgio G. Response to correspondence on "Reproducibility of CRISPR-Cas9 methods for generation of conditional mouse alleles: a multi-center evaluation". Genome Biol 2021; 22:99. [PMID: 33827648 PMCID: PMC8025318 DOI: 10.1186/s13059-021-02320-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Channabasavaiah B Gurumurthy
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE, USA. .,Developmental Neuroscience, Munroe Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Aidan R O'Brien
- Transformational Bioinformatics, Health and Biosecurity Business Unit, CSIRO, Sydney, Australia.,Department of Immunology and Infectious Disease, the John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Rolen M Quadros
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE, USA
| | - John Adams
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Pilar Alcaide
- Department of Immunology, Tufts University School of Medicine, Boston, USA
| | - Shinya Ayabe
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Johnathan Ballard
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Marie-Claude Beauchamp
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Kathleen A Becker
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Guillaume Bernas
- Transgenesis and Animal Modeling Core Facility, Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - David Brough
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, AV Hill Building, Oxford Road, Manchester, M13 9PT, UK
| | | | - Wesley Chan
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Hanying Chen
- School of Medicine, Indiana University, Indianapolis, IN, 46202, USA
| | - Ruby Dawson
- South Australian Health & Medical Research Institute and Department of Medicine, University of Adelaide, Adelaide, Australia
| | - Victoria DeMambro
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Jinke D'Hont
- Transgenic mouse core facility, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Katharine Dibb
- Unit of Cardiac Physiology, School of Medical Sciences, Manchester Academic Health Science Center, University of Manchester, Manchester, UK
| | - James D Eudy
- High-Throughput DNA Sequencing and Genotyping Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, USA
| | - Lin Gan
- University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Jing Gao
- Department of Immunology and Infectious Disease, the John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Amy Gonzales
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Anyonya Guntur
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Huiping Guo
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Donald W Harms
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE, USA
| | - Anne Harrington
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Kathryn E Hentges
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Neil Humphreys
- Transgenic Unit core facility, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Shiho Imai
- Department of Basic Medicine, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Hideshi Ishii
- Department of Medical Data Science, Osaka University Graduate School of Medicine, Suita, Japan
| | - Mizuho Iwama
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Eric Jonasch
- The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Michelle Karolak
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Bernard Keavney
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester AND Manchester Heart Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Nay-Chi Khin
- Department of Immunology and Infectious Disease, the John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Masamitsu Konno
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yuko Kotani
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yayoi Kunihiro
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Catherine Larochelle
- Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - Catherine B Lawrence
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, AV Hill Building, Oxford Road, Manchester, M13 9PT, UK
| | - Lin Li
- Children's Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Volkhard Lindner
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Xian-De Liu
- The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Gloria Lopez-Castejon
- Manchester Collaborative Centre for Inflammation Research (MCCIR), School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Andrew Loudon
- Centre for Biological Timing, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Jenna Lowe
- Department of Immunology and Infectious Disease, the John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Loydie Jerome-Majeweska
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Taiji Matsusaka
- Department of Basic Medicine, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Hiromi Miura
- Center for Matrix Biology and Medicine, Graduate School of Medicine, Tokai University, Isehara, Kanagawa, 259-1193, Japan.,Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Yoshiki Miyasaka
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Benjamin Morpurgo
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Katherine Motyl
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Yo-Ichi Nabeshima
- Laboratory of Molecular Life Science, Foundation for Biomedical Research and Innovation, Kobe, Japan
| | - Koji Nakade
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | | | - Kenichi Nakashima
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Yuichi Obata
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Sanae Ogiwara
- Department of Laboratory Animal Science, Support Center for Medical Research and Education, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Mariette Ouellet
- Transgenesis and Animal Modeling Core Facility, Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - Leif Oxburgh
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Sandra Piltz
- South Australian Health & Medical Research Institute and Department of Medicine, University of Adelaide, Adelaide, Australia
| | - Ilka Pinz
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - David Ray
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, OX37LE, UK
| | - Ronald J Redder
- High-Throughput DNA Sequencing and Genotyping Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, USA
| | - Clifford J Rosen
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Nikki Ross
- Department of Immunology and Infectious Disease, the John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Mark T Ruhe
- Mouse Biology Program, University of California, Davis, USA
| | - Larisa Ryzhova
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Ane M Salvador
- Department of Immunology, Tufts University School of Medicine, Boston, USA
| | - Sabrina Shameen Alam
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Radislav Sedlacek
- Laboratory of Transgenic Models of Diseases and Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Karan Sharma
- College of Osteopathic Medicine, Marian University, Indianapolis, IN, 46222, USA
| | - Chad Smith
- The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Katrien Staes
- Transgenic mouse core facility, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Lora Starrs
- Department of Immunology and Infectious Disease, the John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Tomohiro Tanaka
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Andrew Trafford
- Unit of Cardiac Physiology, School of Medical Sciences, Manchester Academic Health Science Center, University of Manchester, Manchester, UK
| | - Yoshihiro Uno
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Leen Vanhoutte
- Transgenic mouse core facility, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Frederique Vanrockeghem
- Transgenic mouse core facility, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | | | - Christian S Wright
- Department of Physical Therapy, School of Health and Human Sciences, Indiana University, Indianapolis, IN, 46202, USA
| | - Yuko Yamauchi
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Xin Yi
- Department of Physical Therapy, School of Health and Human Sciences, Indiana University, Indianapolis, IN, 46202, USA
| | - Kazuto Yoshimi
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Xuesong Zhang
- The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Yu Zhang
- Children's Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Masato Ohtsuka
- Center for Matrix Biology and Medicine, Graduate School of Medicine, Tokai University, Isehara, Kanagawa, 259-1193, Japan.,Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Satyabrata Das
- Lillehei Heart Institute Regenerative Medicine and Sciences Program, University of Minnesota, Minneapolis, MN, USA
| | - Daniel J Garry
- Lillehei Heart Institute Regenerative Medicine and Sciences Program, University of Minnesota, Minneapolis, MN, USA.,Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota, Minneapolis, MN, USA
| | - Tino Hochepied
- Transgenic mouse core facility, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Paul Thomas
- South Australian Health & Medical Research Institute and Department of Medicine, University of Adelaide, Adelaide, Australia
| | | | - Antony D Adamson
- Transgenic Unit core facility, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Atsushi Yoshiki
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Jean-Francois Schmouth
- Transgenesis and Animal Modeling Core Facility, Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - Andrei Golovko
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - William R Thompson
- Department of Physical Therapy, School of Health and Human Sciences, Indiana University, Indianapolis, IN, 46202, USA
| | - K C Kent Lloyd
- Mouse Biology Program, University of California, Davis, USA.,Department of Surgery, School of Medicine, University of California, Davis, Davis, USA
| | - Joshua A Wood
- Mouse Biology Program, University of California, Davis, USA
| | - Mitra Cowan
- McGill Integrated Core for Animal Modeling (MICAM), Montreal, Canada
| | - Tomoji Mashimo
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Hao Zhu
- Children's Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Petr Kasparek
- Laboratory of Transgenic Models of Diseases and Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Lucy Liaw
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Joseph M Miano
- University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Gaetan Burgio
- Department of Immunology and Infectious Disease, the John Curtin School of Medical Research, The Australian National University, Canberra, Australia.
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3
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Oka Y, Hamada M, Nakazawa Y, Muramatsu H, Okuno Y, Higasa K, Shimada M, Takeshima H, Hanada K, Hirano T, Kawakita T, Sakaguchi H, Ichimura T, Ozono S, Yuge K, Watanabe Y, Kotani Y, Yamane M, Kasugai Y, Tanaka M, Suganami T, Nakada S, Mitsutake N, Hara Y, Kato K, Mizuno S, Miyake N, Kawai Y, Tokunaga K, Nagasaki M, Kito S, Isoyama K, Onodera M, Kaneko H, Matsumoto N, Matsuda F, Matsuo K, Takahashi Y, Mashimo T, Kojima S, Ogi T. Digenic mutations in ALDH2 and ADH5 impair formaldehyde clearance and cause a multisystem disorder, AMeD syndrome. Sci Adv 2020; 6:6/51/eabd7197. [PMID: 33355142 DOI: 10.1126/sciadv.abd7197] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Rs671 in the aldehyde dehydrogenase 2 gene (ALDH2) is the cause of Asian alcohol flushing response after drinking. ALDH2 detoxifies endogenous aldehydes, which are the major source of DNA damage repaired by the Fanconi anemia pathway. Here, we show that the rs671 defective allele in combination with mutations in the alcohol dehydrogenase 5 gene, which encodes formaldehyde dehydrogenase (ADH5FDH ), causes a previously unidentified disorder, AMeD (aplastic anemia, mental retardation, and dwarfism) syndrome. Cellular studies revealed that a decrease in the formaldehyde tolerance underlies a loss of differentiation and proliferation capacity of hematopoietic stem cells. Moreover, Adh5-/-Aldh2 E506K/E506K double-deficient mice recapitulated key clinical features of AMeDS, showing short life span, dwarfism, and hematopoietic failure. Collectively, our results suggest that the combined deficiency of formaldehyde clearance mechanisms leads to the complex clinical features due to overload of formaldehyde-induced DNA damage, thereby saturation of DNA repair processes.
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Affiliation(s)
- Yasuyoshi Oka
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Motoharu Hamada
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuka Nakazawa
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yusuke Okuno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koichiro Higasa
- Department of Genome Analysis, Institute of Biomedical Science, Kansai Medical University, Osaka, Japan
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mayuko Shimada
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Honoka Takeshima
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- School of Medicine, Nagoya University, Nagoya, Japan
| | - Katsuhiro Hanada
- Clinical Engineering Research Center, Faculty of Medicine, Oita University, Yufu, Japan
| | - Taichi Hirano
- Department of Hematology, National Hospital Organization, Kumamoto Medical Center, Kumamoto, Japan
| | - Toshiro Kawakita
- Department of Hematology, National Hospital Organization, Kumamoto Medical Center, Kumamoto, Japan
| | - Hirotoshi Sakaguchi
- Department of Hematology and Oncology, Children Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - Takuya Ichimura
- Department of Pediatrics, Graduate School of Medicine, Yamaguchi University, Ube, Japan
| | - Shuichi Ozono
- Department of Pediatrics and Child Health, School of Medicine, Kurume University, Kurume, Japan
| | - Kotaro Yuge
- Department of Pediatrics and Child Health, School of Medicine, Kurume University, Kurume, Japan
| | - Yoriko Watanabe
- Department of Pediatrics and Child Health, School of Medicine, Kurume University, Kurume, Japan
| | - Yuko Kotani
- Institute of Experimental Animal Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
- Genome Editing Research and Development (R&D) Center, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Mutsumi Yamane
- Center for Animal Research and Education, Nagoya University, Nagoya, Japan
| | - Yumiko Kasugai
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Miyako Tanaka
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takayoshi Suganami
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinichiro Nakada
- Department of Bioregulation and Cellular Response, Graduate School of Medicine, Osaka University, Osaka, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, Osaka, Japan
| | - Norisato Mitsutake
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Yuichiro Hara
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kohji Kato
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Seiji Mizuno
- Department of Pediatrics, Aichi Developmental Disability Center, Kasugai, Japan
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yosuke Kawai
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Katsushi Tokunaga
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masao Nagasaki
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Human Biosciences Unit for the Top Global Course Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan
| | - Seiji Kito
- Center for Animal Research and Education, Nagoya University, Nagoya, Japan
| | - Keiichi Isoyama
- Department of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Masafumi Onodera
- Division of Immunology, National Center for Child Health and Development, Tokyo, Japan
| | - Hideo Kaneko
- Department of Clinical Research, National Hospital Organization, Nagara Medical Center, Gifu, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
- Department of Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoji Mashimo
- Institute of Experimental Animal Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
- Genome Editing Research and Development (R&D) Center, Graduate School of Medicine, Osaka University, Osaka, Japan
- Division of Animal Genetics, Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Seiji Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoo Ogi
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan.
- Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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4
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Nakazawa Y, Hara Y, Oka Y, Komine O, van den Heuvel D, Guo C, Daigaku Y, Isono M, He Y, Shimada M, Kato K, Jia N, Hashimoto S, Kotani Y, Miyoshi Y, Tanaka M, Sobue A, Mitsutake N, Suganami T, Masuda A, Ohno K, Nakada S, Mashimo T, Yamanaka K, Luijsterburg MS, Ogi T. Ubiquitination of DNA Damage-Stalled RNAPII Promotes Transcription-Coupled Repair. Cell 2020; 180:1228-1244.e24. [PMID: 32142649 DOI: 10.1016/j.cell.2020.02.010] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [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: 07/22/2019] [Revised: 12/16/2019] [Accepted: 02/04/2020] [Indexed: 02/06/2023]
Abstract
Transcription-coupled nucleotide excision repair (TC-NER) is initiated by the stalling of elongating RNA polymerase II (RNAPIIo) at DNA lesions. The ubiquitination of RNAPIIo in response to DNA damage is an evolutionarily conserved event, but its function in mammals is unknown. Here, we identified a single DNA damage-induced ubiquitination site in RNAPII at RPB1-K1268, which regulates transcription recovery and DNA damage resistance. Mechanistically, RPB1-K1268 ubiquitination stimulates the association of the core-TFIIH complex with stalled RNAPIIo through a transfer mechanism that also involves UVSSA-K414 ubiquitination. We developed a strand-specific ChIP-seq method, which revealed RPB1-K1268 ubiquitination is important for repair and the resolution of transcriptional bottlenecks at DNA lesions. Finally, RPB1-K1268R knockin mice displayed a short life-span, premature aging, and neurodegeneration. Our results reveal RNAPII ubiquitination provides a two-tier protection mechanism by activating TC-NER and, in parallel, the processing of DNA damage-stalled RNAPIIo, which together prevent prolonged transcription arrest and protect against neurodegeneration.
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Affiliation(s)
- Yuka Nakazawa
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuichiro Hara
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuyoshi Oka
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Okiru Komine
- Department of Neuroscience and Pathobiology, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Neuroscience and Pathobiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Diana van den Heuvel
- Department of Human Genetics, Leiden University Medical Center (LUMC), Leiden, the Netherlands
| | - Chaowan Guo
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasukazu Daigaku
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan; Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Mayu Isono
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuxi He
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mayuko Shimada
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kana Kato
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nan Jia
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoru Hashimoto
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuko Kotani
- Institute of Experimental Animal Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan; Genome Editing Research and Development (R&D) Center, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuka Miyoshi
- Department of Neuroscience and Pathobiology, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Neuroscience and Pathobiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Miyako Tanaka
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akira Sobue
- Department of Neuroscience and Pathobiology, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Neuroscience and Pathobiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Norisato Mitsutake
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Takayoshi Suganami
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akio Masuda
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kinji Ohno
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinichiro Nakada
- Department of Bioregulation and Cellular Response, Graduate School of Medicine, Osaka University, Osaka, Japan; Institute for Advanced Co-Creation Studies, Osaka University, Osaka, Japan
| | - Tomoji Mashimo
- Institute of Experimental Animal Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan; Genome Editing Research and Development (R&D) Center, Graduate School of Medicine, Osaka University, Osaka, Japan; Division of Animal Genetics, Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Koji Yamanaka
- Department of Neuroscience and Pathobiology, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Neuroscience and Pathobiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Martijn S Luijsterburg
- Department of Human Genetics, Leiden University Medical Center (LUMC), Leiden, the Netherlands
| | - Tomoo Ogi
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan; Department of Human Genetics and Molecular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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5
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Kadowaki S, Yamazaki S, Kotani Y, Tsuji T, Sakoda N, Kobayashi Y, Horio N, Goto T, Muraoka G, Ozawa S, Suezawa T, Kuroko Y, Tateishi A, Shimizu S, Kasahara S. P1833The c-fos mRNA expression reveals persistent myocardial stretch in the right ventricle during asphyxiated cardiac arrest. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Donation after circulatory death (DCD) heart transplantation has been debated over the past decades because of the shortage of donor. The right ventricular dysfunction is one of the remaining problems for clinical implication of DCD heart transplantation. DCD hearts suffering from the volume overload have a potential to aggravate the right ventricular dysfunction after heart transplantation. The c-fos mRNA is one of the “immediate” response genes to mechanical stresses, such as myocardial cell stretch, without neural and humoral factors. In this study, we assessed myocardial stretch during asphyxiated cardiac arrest using c-fos mRNA expression.
Purpose
The purpose of this study is to reveal the impact of right ventricular volume overload during asphyxiated cardiac arrest.
Methods
Male Wistar rats (8 weeks of age, n=18) were anesthetized with paralyzed ventilation. The trachea was dissected and ligated to initiate asphyxiation. Hearts were harvested at 3 time points: 0, 15 and 30 minutes after termination of the ventilation. Free walls of right and left ventricle were sectioned and immersed in RNA stabilization solution as soon as possible. Total RNA was extracted from these tissues using a guanidine thiocyanate-phenol-chloroform method and cDNA was synthesized using a reverse transcriptase. Next, we measured the quantified expression level by using the droplet digital PCR method with a probe and primers for c-fos gene. Expression of c-fos level was divided by extracted TATA binding protein (TBP) level as a control marker, the ratio of c-fos and TBP was used in analysis.
Results
In the left ventricle, the expression of c-fos rapidly increased by 15 minutes (0.81±0.24 (c-fos/TBP), p<0.05 by one-way ANOVA followed by the Dunnett's test) compared to at 0 minutes (0.21±0.06), but the expression level recovered to the baseline level at 30 minutes after termination of the ventilation (0.19±0.03). On the other hand, in the right ventricle, the c-fos expression was gradually elevated and peaked at 30 minutes (0.88±0.20, p<0.05 by the Dunnett's test) compared to at 0 minutes (0.22±0.05).
Conclusion
These results suggest that the volume overload to the right ventricle during asphyxiated cardiac arrest prolongs compared to that to the left ventricle, which may cause the right ventricular dysfunction after DCD heart transplantation.
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Affiliation(s)
| | - S Yamazaki
- National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Y Kotani
- Okayama University, Okayama, Japan
| | - T Tsuji
- Okayama University, Okayama, Japan
| | - N Sakoda
- Okayama University, Okayama, Japan
| | | | - N Horio
- Okayama University, Okayama, Japan
| | - T Goto
- Okayama University, Okayama, Japan
| | | | - S Ozawa
- Okayama University, Okayama, Japan
| | | | - Y Kuroko
- Okayama University, Okayama, Japan
| | | | - S Shimizu
- National Cerebral and Cardiovascular Center, Osaka, Japan
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6
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Gurumurthy CB, O'Brien AR, Quadros RM, Adams J, Alcaide P, Ayabe S, Ballard J, Batra SK, Beauchamp MC, Becker KA, Bernas G, Brough D, Carrillo-Salinas F, Chan W, Chen H, Dawson R, DeMambro V, D'Hont J, Dibb KM, Eudy JD, Gan L, Gao J, Gonzales A, Guntur AR, Guo H, Harms DW, Harrington A, Hentges KE, Humphreys N, Imai S, Ishii H, Iwama M, Jonasch E, Karolak M, Keavney B, Khin NC, Konno M, Kotani Y, Kunihiro Y, Lakshmanan I, Larochelle C, Lawrence CB, Li L, Lindner V, Liu XD, Lopez-Castejon G, Loudon A, Lowe J, Jerome-Majewska LA, Matsusaka T, Miura H, Miyasaka Y, Morpurgo B, Motyl K, Nabeshima YI, Nakade K, Nakashiba T, Nakashima K, Obata Y, Ogiwara S, Ouellet M, Oxburgh L, Piltz S, Pinz I, Ponnusamy MP, Ray D, Redder RJ, Rosen CJ, Ross N, Ruhe MT, Ryzhova L, Salvador AM, Alam SS, Sedlacek R, Sharma K, Smith C, Staes K, Starrs L, Sugiyama F, Takahashi S, Tanaka T, Trafford AW, Uno Y, Vanhoutte L, Vanrockeghem F, Willis BJ, Wright CS, Yamauchi Y, Yi X, Yoshimi K, Zhang X, Zhang Y, Ohtsuka M, Das S, Garry DJ, Hochepied T, Thomas P, Parker-Thornburg J, Adamson AD, Yoshiki A, Schmouth JF, Golovko A, Thompson WR, Lloyd KCK, Wood JA, Cowan M, Mashimo T, Mizuno S, Zhu H, Kasparek P, Liaw L, Miano JM, Burgio G. Reproducibility of CRISPR-Cas9 methods for generation of conditional mouse alleles: a multi-center evaluation. Genome Biol 2019; 20:171. [PMID: 31446895 PMCID: PMC6709553 DOI: 10.1186/s13059-019-1776-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [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: 04/01/2019] [Accepted: 07/27/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND CRISPR-Cas9 gene-editing technology has facilitated the generation of knockout mice, providing an alternative to cumbersome and time-consuming traditional embryonic stem cell-based methods. An earlier study reported up to 16% efficiency in generating conditional knockout (cKO or floxed) alleles by microinjection of 2 single guide RNAs (sgRNA) and 2 single-stranded oligonucleotides as donors (referred herein as "two-donor floxing" method). RESULTS We re-evaluate the two-donor method from a consortium of 20 laboratories across the world. The dataset constitutes 56 genetic loci, 17,887 zygotes, and 1718 live-born mice, of which only 15 (0.87%) mice contain cKO alleles. We subject the dataset to statistical analyses and a machine learning algorithm, which reveals that none of the factors analyzed was predictive for the success of this method. We test some of the newer methods that use one-donor DNA on 18 loci for which the two-donor approach failed to produce cKO alleles. We find that the one-donor methods are 10- to 20-fold more efficient than the two-donor approach. CONCLUSION We propose that the two-donor method lacks efficiency because it relies on two simultaneous recombination events in cis, an outcome that is dwarfed by pervasive accompanying undesired editing events. The methods that use one-donor DNA are fairly efficient as they rely on only one recombination event, and the probability of correct insertion of the donor cassette without unanticipated mutational events is much higher. Therefore, one-donor methods offer higher efficiencies for the routine generation of cKO animal models.
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Affiliation(s)
- Channabasavaiah B Gurumurthy
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE, USA.
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Aidan R O'Brien
- Transformational Bioinformatics, Health and Biosecurity Business Unit, CSIRO, North Ryde, Australia
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, the Australian National University, Canberra, Australia
| | - Rolen M Quadros
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE, USA
| | - John Adams
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Pilar Alcaide
- Department of Immunology, Tufts University School of Medicine, Boston, USA
| | - Shinya Ayabe
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Johnathan Ballard
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Marie-Claude Beauchamp
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Kathleen A Becker
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Guillaume Bernas
- Transgenesis and Animal Modeling Core Facility, Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - David Brough
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, AV Hill Building, Oxford Road, Manchester, M13 9PT, UK
| | | | - Wesley Chan
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Hanying Chen
- School of Medicine, Indiana University, Indianapolis, IN, 46202, USA
| | - Ruby Dawson
- South Australian Health & Medical Research Institute and Department of Medicine, University of Adelaide, Adelaide, Australia
| | - Victoria DeMambro
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Jinke D'Hont
- Transgenic Mouse Core Facility, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Katharine M Dibb
- Unit of Cardiac Physiology, School of Medical Sciences, Manchester Academic Health Science Center, University of Manchester, Manchester, UK
| | - James D Eudy
- High-Throughput DNA Sequencing and Genotyping Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, USA
| | - Lin Gan
- University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Jing Gao
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, the Australian National University, Canberra, Australia
| | - Amy Gonzales
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Anyonya R Guntur
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Huiping Guo
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Donald W Harms
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE, USA
| | - Anne Harrington
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Kathryn E Hentges
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Neil Humphreys
- Transgenic Unit Core Facility, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Shiho Imai
- Department of Basic Medicine, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Hideshi Ishii
- Department of Medical Data Science, Osaka University Graduate School of Medicine, Suita, Japan
| | - Mizuho Iwama
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Eric Jonasch
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michelle Karolak
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Bernard Keavney
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester and Manchester Heart Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Nay-Chi Khin
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, the Australian National University, Canberra, Australia
| | - Masamitsu Konno
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yuko Kotani
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yayoi Kunihiro
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Catherine Larochelle
- Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - Catherine B Lawrence
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, AV Hill Building, Oxford Road, Manchester, M13 9PT, UK
| | - Lin Li
- Children's Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Volkhard Lindner
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Xian-De Liu
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gloria Lopez-Castejon
- Manchester Collaborative Centre for Inflammation Research (MCCIR), School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Andrew Loudon
- Centre for Biological Timing, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Jenna Lowe
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, the Australian National University, Canberra, Australia
| | - Loydie A Jerome-Majewska
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Taiji Matsusaka
- Department of Basic Medicine, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Hiromi Miura
- Center for Matrix Biology and Medicine, Graduate School of Medicine, Tokai University, Isehara, Kanagawa, 259-1193, Japan
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Yoshiki Miyasaka
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Benjamin Morpurgo
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - Katherine Motyl
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Yo-Ichi Nabeshima
- Laboratory of Molecular Life Science, Foundation for Biomedical Research and Innovation, Kobe, Japan
| | - Koji Nakade
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | | | - Kenichi Nakashima
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Yuichi Obata
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Sanae Ogiwara
- Department of Laboratory Animal Science, Support Center for Medical Research and Education, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Mariette Ouellet
- Transgenesis and Animal Modeling Core Facility, Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - Leif Oxburgh
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
- Basic and Clinical Research, The Rogosin Institute, New York, USA
| | - Sandra Piltz
- South Australian Health & Medical Research Institute and Department of Medicine, University of Adelaide, Adelaide, Australia
| | - Ilka Pinz
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - David Ray
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, OX37LE, UK
| | - Ronald J Redder
- High-Throughput DNA Sequencing and Genotyping Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, USA
| | - Clifford J Rosen
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Nikki Ross
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, the Australian National University, Canberra, Australia
| | - Mark T Ruhe
- Mouse Biology Program, University of California, Davis, USA
| | - Larisa Ryzhova
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Ane M Salvador
- Department of Immunology, Tufts University School of Medicine, Boston, USA
| | - Sabrina Shameen Alam
- Departments of Anatomy and Cell Biology, Human Genetics and Pediatrics, Research Institute McGill University Health Center (RI-MUHC), Montreal, Canada
| | - Radislav Sedlacek
- Laboratory of Transgenic Models of Diseases and Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Karan Sharma
- College of Osteopathic Medicine, Marian University, Indianapolis, IN, 46222, USA
| | - Chad Smith
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Katrien Staes
- Transgenic Mouse Core Facility, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Lora Starrs
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, the Australian National University, Canberra, Australia
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Tomohiro Tanaka
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Andrew W Trafford
- Unit of Cardiac Physiology, School of Medical Sciences, Manchester Academic Health Science Center, University of Manchester, Manchester, UK
| | - Yoshihiro Uno
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Leen Vanhoutte
- Transgenic Mouse Core Facility, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Frederique Vanrockeghem
- Transgenic Mouse Core Facility, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | | | - Christian S Wright
- School of Health and Human Sciences, Department of Physical Therapy, Indiana University, Indianapolis, IN, 46202, USA
| | - Yuko Yamauchi
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Xin Yi
- School of Health and Human Sciences, Department of Physical Therapy, Indiana University, Indianapolis, IN, 46202, USA
| | - Kazuto Yoshimi
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Xuesong Zhang
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yu Zhang
- Children's Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Masato Ohtsuka
- Center for Matrix Biology and Medicine, Graduate School of Medicine, Tokai University, Isehara, Kanagawa, 259-1193, Japan
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, 143, Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Satyabrata Das
- Lillehei Heart Institute Regenerative Medicine and Sciences Program, University of Minnesota, Minneapolis, MN, USA
| | - Daniel J Garry
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota, Minneapolis, MN, USA
- Department of Surgery, School of Medicine, University of California, Davis, Davis, USA
| | - Tino Hochepied
- Transgenic Mouse Core Facility, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Paul Thomas
- South Australian Health & Medical Research Institute and Department of Medicine, University of Adelaide, Adelaide, Australia
| | | | - Antony D Adamson
- Transgenic Unit Core Facility, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Atsushi Yoshiki
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Jean-Francois Schmouth
- Transgenesis and Animal Modeling Core Facility, Centre de Recherche du Centre Hospitalier Universitaire de Montreal (CRCHUM), Montreal, Canada
| | - Andrei Golovko
- Texas A&M Institute for Genomic Medicine (TIGM), Texas A&M University, College Station, TX, 77843, USA
| | - William R Thompson
- School of Health and Human Sciences, Department of Physical Therapy, Indiana University, Indianapolis, IN, 46202, USA
| | - K C Kent Lloyd
- Mouse Biology Program, University of California, Davis, USA
- Department of Surgery, School of Medicine, University of California, Davis, Davis, USA
| | - Joshua A Wood
- Mouse Biology Program, University of California, Davis, USA
| | - Mitra Cowan
- McGill Integrated Core for Animal Modeling (MICAM), Montreal, Canada
| | - Tomoji Mashimo
- The Institute of Experimental Animal Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Hao Zhu
- Children's Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Petr Kasparek
- Laboratory of Transgenic Models of Diseases and Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Lucy Liaw
- Maine Medical Center Research Institute (MMCRI), Scarborough, ME, USA
| | - Joseph M Miano
- University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Gaetan Burgio
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, the Australian National University, Canberra, Australia.
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7
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Tobiume T, Kotani Y, Takaya H, Nakai H, Tsuji I, Suzuki A, Mandai M. Determinant factors of postoperative recurrence of endometriosis: difference between endometrioma and pain. Eur J Obstet Gynecol Reprod Biol 2016; 205:54-9. [PMID: 27566223 DOI: 10.1016/j.ejogrb.2016.07.516] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/21/2016] [Accepted: 07/27/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Although the postoperative use of hormonal treatment for endometriosis is recommended in the European Society of Human Reproduction and Embryology guidelines to prevent the recurrence of endometriosis-associated dysmenorrhoea, hormonal treatment may not be necessary for all patients who undergo surgical treatment for endometriosis. The aim of this study was to clarify the determinant factors that predict the recurrence of endometriosis after surgery in order to develop personalized hormonal treatment recommendations. Factors associated with the recurrence of endometrioma and pain were investigated independently to identify the likelihood of recurrence in each individual patient. STUDY DESIGN Between 2008 and 2013, 352 patients underwent surgery and were diagnosed with endometriosis based on pathological findings at the study hospital. Among these patients, 191 experienced a recurrence of endometrioma in the absence of pre- or postoperative hormonal treatment. Various clinical factors such as pre-operative pain, intra-operative findings and postoperative improvement of pain were compared between patients who experienced recurrence after surgery and those who did not. RESULTS The cumulative 5-year recurrence rate of endometrioma was 28.7% among the 191 patients who did not undergo pre- or postoperative hormonal treatment. Significant differences were detected in maximum tumour diameter, revised American Society for Reproductive Medicine score (r-ASRM score), operative time and operative blood loss between patients in the recurrent endometrioma group and the non-recurrent endometrioma group; only the r-ASRM score was significantly correlated with recurrence of endometrioma in the multivariate analysis. The cumulative 5-year rate of persistent/recurrent pain was 33.4%. There were significant differences in the postoperative improvement of pain between the persistent/recurrent pain group and the non-recurrent pain group according to the univariate and multivariate analyses. CONCLUSION This study suggests that the risk factors for recurrence of endometrioma differ from the risk factors for recurrence of pain. The use of postoperative hormonal treatment should be considered based on the dominant risk factors and needs of each patient.
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Affiliation(s)
- T Tobiume
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan.
| | - Y Kotani
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - H Takaya
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - H Nakai
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - I Tsuji
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - A Suzuki
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - M Mandai
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan.
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8
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Fukatsu H, Nohara K, Kotani Y, Tanaka N, Matsuno K, Sakai T. Endoscopic evaluation of food bolus formation and its relationship with the number of chewing cycles. J Oral Rehabil 2015; 42:580-7. [PMID: 25777749 DOI: 10.1111/joor.12290] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 02/14/2015] [Indexed: 11/29/2022]
Abstract
It is known that solid food is transported to the pharynx actively in parallel to it being crushed by chewing and mixed with saliva in the oral cavity. Therefore, food bolus formation should be considered to take place from the oral cavity to the pharynx. In previous studies, the chewed food was evaluated after the food had been removed from the oral cavity. However, it has been pointed out that spitting food out of the oral cavity interferes with natural food bolus formation. Therefore, we observed food boluses immediately before swallowing using an endoscope to establish a method to evaluate the food bolus-forming function, and simultaneously performed endoscopic evaluation of food bolus formation and its relationship with the number of chewing cycles. The subject was inserted the endoscope nasally and instructed to eat two coloured samples of boiled rice simultaneously in two ingestion conditions ('as usual' and 'chewing well'). The condition of the food bolus was graded into three categories for each item of grinding, mixing and aggregation and scored 2, 1 and 0. The score of aggregation was high under both ingestion conditions. The scores of grinding and mixing tended to be higher in subjects with a high number of chewing cycles, and the score of aggregation was high regardless of the number of chewing cycles. It was suggested that food has to be aggregated, even though the number of chewing cycles is low and the food is not ground or mixed for a food bolus to reach the swallowing threshold.
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Affiliation(s)
- H Fukatsu
- Division for Oral and Facial Disorders, Osaka University Dental Hospital, Osaka, Japan
| | - K Nohara
- Division for Oral and Facial Disorders, Osaka University Dental Hospital, Osaka, Japan
| | - Y Kotani
- Division for Oral and Facial Disorders, Osaka University Dental Hospital, Osaka, Japan
| | - N Tanaka
- Division for Oral and Facial Disorders, Osaka University Dental Hospital, Osaka, Japan
| | - K Matsuno
- Division for Oral and Facial Disorders, Osaka University Dental Hospital, Osaka, Japan
| | - T Sakai
- Division of Functional Oral Neuroscience, Osaka University, Osaka University Graduate School of Dentistry, Osaka, Japan
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9
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Tajima M, Kotani Y, Kurosawa T, Miyasaka M. Pitfalls in mouse norovirus (MNV) detection in fecal samples using RT-PCR, and construction of new MNV-specific primers. Exp Anim 2013; 62:127-35. [PMID: 23615307 DOI: 10.1538/expanim.62.127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The murine norovirus (MNV), which belongs to the Caliciviridae family, is prevalent in laboratory mice. Since this virus affects macrophages and dendritic cells, infected mice are not suitable for immunological investigations, making it important to detect MNV infections accurately. When we tested RNA extracts derived from mouse feces for MNV detection using nested RT-PCR with a set of MNV-specific primers reported by Goto et al. (Exp. Anim. 58: 135-140, 2009), we found that these primers amplified not only an MNV-specific signal but also amplified a relatively weak signal with a size almost identical to that of the specific signal. Analysis of the nucleotide sequence of this amplified signal revealed that it was at least 98% identical to the exophosphatase gene of a commensal bacterium, Bacteroides vulgatus. Subsequent analysis showed that the signal amplified with a pair of nested primers was from DNA derived from B. vulgatus, which is sometimes present in SPF laboratory mouse feces, and the nested primers used were both partly homologous with the B. vulgatus nucleotide sequence. We thus designed a new set of nested RT-PCR primers that was not cross-reactive with the B. vulgatus genome. PCR products amplified by the newly designed primers were at least 89.3% identical to the MNV RNA polymerase gene in all cases. Our findings demonstrated that the primer set we designed was suitable for detecting an MNV-specific signal without cross-reacting with B. vulgatus DNA in mouse feces.
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Affiliation(s)
- Masaru Tajima
- The Institute of Experimental Animal Sciences, Faculty of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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10
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Abstract
Disuse atrophy of swallowing-related organs due to an excessive decrease in swallowing frequency is suspected to occur in patients with poor oral intake, especially elderly people. However, swallowing frequency in daily life has not previously been examined in the elderly. This study examined swallowing frequency in elderly people and compared these findings to those in a younger population and differences in the degree of activity in daily life. (i) We compared swallowing frequency in 20 elderly people (82·0 ± 8·3 year) and 15 healthy young people (26·5 ± 3·5 year). (ii) 20 elderly people were divided into two groups according to the degree of activity in daily life: a semi-bedridden group and bedridden group; the swallowing frequency was compared between these groups. (i) The swallowing frequency in the elderly people was 2-19 times per hour and the mean was 9·4 ± 4·9, and that in the healthy young people was 16-76 times per hour and the mean was 40·7 ± 19·5. Swallowing frequency in elderly people was significantly lower than that in young healthy people (P < 0·0001). (ii) The swallowing frequency in bedridden group was 2-11 times per hour and the mean was 6·8 ± 3·3, and that in semi-bedridden group was 3-19 times per hour and the mean was 11·9 ± 5·1. Swallowing frequency in bedridden group was significantly lower than that in semi-bedridden group (P < 0·05). These results indicate that in daily life, elderly people tend to swallow less frequently than young people. In addition, swallowing frequency was lower in elderly subjects with a low degree of activity in daily life.
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Affiliation(s)
- N Tanaka
- Division of Oral and Facial Disorders, Osaka University Dental Hospital, Suita, Japan; Division of Dentistry, Shitennoji - Yawaragien Medical Center for Children with Mental and Physical Disability, Tondabayashi, Japan
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11
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Honjo O, Kotani Y, Bharucha T, Mertens L, Caldarone CA, Redington AN, Van Arsdell G. Anatomical factors determining surgical decision-making in patients with transposition of the great arteries with left ventricular outflow tract obstruction. Eur J Cardiothorac Surg 2013; 44:1085-94; discussion 1094. [DOI: 10.1093/ejcts/ezt283] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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12
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Ueda N, Nohara K, Kotani Y, Tanaka N, Okuno K, Sakai T. Effects of the bolus volume on hyoid movements in normal individuals. J Oral Rehabil 2013; 40:491-9. [DOI: 10.1111/joor.12060] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2013] [Indexed: 12/01/2022]
Affiliation(s)
- N. Ueda
- Division for Oral and Facial Disorders; Osaka University Dental Hospital; Osaka Japan
| | - K. Nohara
- Division for Oral and Facial Disorders; Osaka University Dental Hospital; Osaka Japan
| | - Y. Kotani
- Division for Oral and Facial Disorders; Osaka University Dental Hospital; Osaka Japan
| | - N. Tanaka
- Division for Oral and Facial Disorders; Osaka University Dental Hospital; Osaka Japan
| | - K. Okuno
- Division for Oral and Facial Disorders; Osaka University Dental Hospital; Osaka Japan
| | - T. Sakai
- Division of Functional Oral Neuroscience; Osaka University; Osaka University Graduate School of Dentistry; Osaka Japan
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13
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Lushaj E, Kotani Y, Osaki S, Lozonschi L, Edwards N, Kohmoto T. Improved Postoperative Clinical Outcomes after Ventricular Assist Device Implantation in Patients Older Than 60 Years of Age at the University of Wisconsin Hospital and Clinics. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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14
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Ideta S, Yoshida T, Nishi I, Fujimori A, Kotani Y, Ono K, Nakashima Y, Yamaichi S, Sasagawa T, Nakajima M, Kihou K, Tomioka Y, Lee CH, Iyo A, Eisaki H, Ito T, Uchida S, Arita R. Dependence of carrier doping on the impurity potential in transition-metal-substituted FeAs-based superconductors. Phys Rev Lett 2013; 110:107007. [PMID: 23521287 DOI: 10.1103/physrevlett.110.107007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 01/14/2013] [Indexed: 06/01/2023]
Abstract
In order to examine to what extent the rigid-band-like electron doping scenario is applicable to the transition metal-substituted Fe-based superconductors, we have performed angle-resolved photoemission spectroscopy studies of Ba(Fe(1-x)Ni(x))(2)As(2) (Ni-122) and Ba(Fe(1-x)Cu(x))(2)As(2) (Cu-122), and compared the results with Ba(Fe(1-x)Co(x))(2)As(2) (Co-122). We find that Ni 3d-derived features are formed below the Fe 3d band and that Cu 3d-derived ones further below it. The electron and hole Fermi surface (FS) volumes are found to increase and decrease with substitution, respectively, qualitatively consistent with the rigid-band model. However, the total extra electron number estimated from the FS volumes (the total electron FS volume minus the total hole FS volume) is found to decrease in going from Co-, Ni-, to Cu-122 for a fixed nominal extra electron number, that is, the number of electrons that participate in the formation of FS decreases with increasing impurity potential. We find that the Néel temperature T(N) and the critical temperature T(c) maximum are determined by the FS volumes rather than the nominal extra electron concentration or the substituted atom concentration.
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Affiliation(s)
- S Ideta
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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15
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Okazaki K, Ito Y, Ota Y, Kotani Y, Shimojima T, Kiss T, Watanabe S, Chen CT, Niitaka S, Hanaguri T, Takagi H, Chainani A, Shin S. Evidence for a cos(4φ) modulation of the superconducting energy gap of optimally doped FeTe(0.6)Se(0.4) single crystals using laser angle-resolved photoemission spectroscopy. Phys Rev Lett 2012; 109:237011. [PMID: 23368253 DOI: 10.1103/physrevlett.109.237011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Indexed: 06/01/2023]
Abstract
We study the superconducting-gap anisotropy of the Γ-centered hole Fermi surface in optimally doped FeTe(0.6)Se(0.4) (T(c)=14.5 K), using laser-excited angle-resolved photoemission spectroscopy. We observe sharp superconducting (SC) coherence peaks at T=2.5 K. In contrast to earlier angle-resolved photoemission spectroscopy studies but consistent with thermodynamic results, the momentum dependence shows a cos(4φ) modulation of the SC-gap anisotropy. The observed SC-gap anisotropy strongly indicates that the pairing interaction is not a conventional phonon-mediated isotropic one. Instead, the results suggest the importance of second-nearest-neighbor electronic interactions between the iron sites in the framework of s(±)-wave superconductivity.
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Affiliation(s)
- K Okazaki
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
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16
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Kaneda H, Kotani Y, Satouchi M, Ando M, Yamamoto N, Ichinose Y, Ohe Y, Nishio M, Hida T, Takeda K, Kudoh S, Minato K, Shibata T, Tamura T, Saijo N. A Phase III Study Comparing Amrubicin and Cisplatin (AP) with Irinotecan and Cisplatin (IP) for the Treatment of Extended-Stage Small Cell Lung Cancer (ED-SCLC): JCOG0509. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32000-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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17
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Namba Y, Hattori Y, Edagawa M, Yoshioka H, Iwasaku M, Shimada T, Satouchi M, Katagami N, Fujita S, Mori M, Imamura F, Kotani Y, Nishimura T, Morita S, Negoro S. A Phase II Study of Pemetrexed in Chemotherapy-Naive Elderly Patients with Advanced Non-Squamous Non-Small-Cell Lung Cancer: Hanshin Oncology Group 003. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32202-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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18
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Okazaki K, Ota Y, Kotani Y, Malaeb W, Ishida Y, Shimojima T, Kiss T, Watanabe S, Chen CT, Kihou K, Lee CH, Iyo A, Eisaki H, Saito T, Fukazawa H, Kohori Y, Hashimoto K, Shibauchi T, Matsuda Y, Ikeda H, Miyahara H, Arita R, Chainani A, Shin S. Octet-Line Node Structure of Superconducting Order Parameter in KFe2As2. Science 2012; 337:1314-7. [DOI: 10.1126/science.1222793] [Citation(s) in RCA: 198] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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19
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Grosse-Wortmann L, Drolet C, Dragulescu A, Kotani Y, Chaturvedi R, Lee K, Mertens L, Taylor K, La Rotta G, van Arsdell G, Redington A, Yoo S. 807 Aortopulmonary Collateral Flow Volume Impacts Early Postoperative Outcome After Fontan Completion: A Multimodality Study. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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20
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Shiota M, Kotani Y, Umemoto M, Tobiume T, Hoshiai H. Estimation of preoperative uterine weight in uterine myoma and uterine adenomyosis. Asian J Endosc Surg 2012; 5:123-5. [PMID: 22776415 DOI: 10.1111/j.1758-5910.2011.00130.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 10/19/2011] [Accepted: 12/06/2011] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Uterine myoma and uterine adenomyosis frequently occur in sexually mature women. Total hysterectomy is the treatment of choice when the symptoms are severe. To select an operative procedure from abdominal, vaginal, and laparoscopic methods, precise estimation of the preoperative uterine weight is desired. In this study, we estimated the preoperative uterine weight with preoperative images in cases of uterine myoma and uterine adenomyosis. METHODS We evaluated 403 patients with uterine myoma or uterine adenomyosis (uterus < 1000 g) between 1996 and 2010. All patients underwent a preoperative MRI and received a hysterectomy with the uterine weight recorded. Based on MR images, we measured (in centimeters) the maximum longitudinal diameter in the sagittal section (a), the maximum lateral diameter (b) and the maximum longitudinal diameter in the transverse section (c) of each uterus. A correlation coefficient was calculated between the weight of the removed uterus and the value of a × b × c for each individual uterus. Also, a regression analysis was performed between x (the value of a × b × c) and y (weight of the removed uterus). RESULTS A strong correlation was shown between the weight of the removed uterus and the value of a × b × c (r = 0.81, P < 0.01). As a result of the regression analysis, the regression equation y = 0.35x + 107 (R(2) = 0.66, P < 0.01) was obtained. CONCLUSION In this study, the estimated weight of the uterus was calculated by the formula y = 0.35x + 107 (x = a × b × c), and this could be the determining factor in choosing a surgical method for hysterectomy.
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Affiliation(s)
- M Shiota
- Department of Obstetrics and Gynecology, Kinki University Faculty of Medicine, Osakasayama, Japan.
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21
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Tanaka N, Nohara K, Okuno K, Kotani Y, Okazaki H, Matsumura M, Sakai T. Development of a swallowing frequency meter using a laryngeal microphone. J Oral Rehabil 2012; 39:411-20. [PMID: 22489845 DOI: 10.1111/j.1365-2842.2012.02293.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Disuse atrophy of swallowing-related organs is suspected when decreased swallowing frequency is seen in the elderly. However, swallowing frequency has not been examined in elderly people during daily life. We developed a swallowing frequency meter containing a laryngeal microphone that does not restrict the subject's ability to perform daily activities. In this study, the utility of the meter was assessed. Experiment 1: The ability of the meter to detect swallowing was examined. The subject was instructed to swallow saliva or foods at a voluntarily pace. During these procedures, swallowing events were simultaneously recorded by the meter, self-enumeration and videofluorography. As a result, all of the swallowing events identified by the meter coincided with the swallowing events identified by self-enumeration and videofluorography. Experiment 2: Swallowing sounds display various patterns both between and within individuals. Therefore, we examined the concordance rate between the number of swallowing events counted by the meter and that counted by self-enumeration in 15 subjects over a longer period than in experiment 1. The concordance rates calculated by two examiners between the meter and self-enumeration were 96·8 ± 4·5% and 98·9 ± 3·3% at rest and 95·2 ± 4·5% and 96·1 ± 4·1% during meals, respectively. Our findings indicate that this meter is useful for measuring the frequency of swallowing during daily situations.
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Affiliation(s)
- N Tanaka
- Division of Oral and Facial Disorders, Osaka University Dental Hospital, Osaka, Japan
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22
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Shiota M, Kotani Y, Umemoto M, Tobiume T, Hoshiai H. Incidence of complications in patients with benign gynecological diseases by BMI and level of complexity of laparoscopic surgery. Asian J Endosc Surg 2012; 5:17-20. [PMID: 22776337 DOI: 10.1111/j.1758-5910.2011.00103.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Revised: 06/25/2011] [Accepted: 07/07/2011] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Laparoscopic surgery has become a standard surgical method for benign gynecological diseases, but the technique can still be accompanied, albeit infrequently, by intraoperative or postoperative complications. It has been postulated that the frequency of complications differs according to patient body habitus or surgical challenge level. We evaluated the relationship between the complication rate at different levels of surgery and BMI in patients with benign gynecological diseases who have undergone laparoscopic surgery at our hospital. METHODS A total of 3231 patients who underwent laparoscopic surgery between 1989 and 2010 were enrolled in this study retrospectively. They were classified into four groups by surgery level (diagnostic laparoscopy or minor, major, or advanced laparoscopic surgery). At each challenge level, patients were classified into three groups based on BMI (as defined by the WHO): A group (underweight), BMI < 18.5; B group (healthy), BMI ≥ 18.5 and < 25; and C group (overweight), BMI ≥ 25. We compared the complication rates between the groups at each level of surgical challenge. RESULTS There was no difference in the complication rate between groups A, B and C at any of the surgical challenge levels. However, at the higher surgical difficulty levels, a higher incidence of overall complications was observed. CONCLUSION The complication rate differs between surgical levels, and complications can occur in any type of surgery, irrespective of the body habitus of the patient. The complication rate is higher when difficult surgical methods are employed, and extra caution is needed.
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Affiliation(s)
- M Shiota
- Department of Obstetrics and Gynecology, Kinki University Faculty of Medicine, Osaka, Japan.
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23
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Shiota M, Kotani Y, Umemoto M, Tobiume T, Shimaoka M, Hoshiai H. Total abdominal hysterectomy versus laparoscopically-assisted vaginal hysterectomy versus total vaginal hysterectomy. Asian J Endosc Surg 2011; 4:161-5. [PMID: 22776300 DOI: 10.1111/j.1758-5910.2011.00104.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
INTRODUCTION While total abdominal hysterectomy (TAH) and total vaginal hysterectomy (TVH) are conventional procedures, we have actively introduced laparoscopically-assisted vaginal hysterectomy (LAVH) since its advent. This study was the first attempt to retrospectively compare the surgical results, including invasiveness, among the three methods of performing a hysterectomy. METHODS The subjects included 1181 patients who underwent total hysterectomies (TAH, n=465; LAVH, n=629; TVH, n=87) due to uterine fibroids or uterine adenomyosis at our hospital between January 1995 and December 2009. The mean age, parity, weight of the removed uterus, operative time, blood loss, rates of intra- and post-operative complications, length of post-operative hospital stay, leukocyte count, and CRP and hemoglobin levels were compared. RESULTS The operative time was significantly longer in the LAVH group than the other two groups. Blood loss was significantly greater in the TAH group than the LAVH and TVA groups. The rates of intra- and post-operative complications were significantly higher in the TAH group than the LAVH group. The CRP level and leukocyte count were significantly lower in the LAVH group than the TAH and TVH groups. CONCLUSION LAVH can be applied to nulligravidas or patients with relatively large uteri and it is proved less invasive than TAH and TVH in this study. We recommend active application of LAVH.
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Affiliation(s)
- M Shiota
- Department of Obstetrics and Gynecology, Kinki University Faculty of Medicine, Osaka, Japan.
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Fehrenbach Prell E, Murray M, Proebstle A, Kotani Y, Johnson M, Lozonschi L, Edwards N, Kohmoto T. 655 A New Bowel Management Strategy Reduces Gastrointestinal Complications and Improves Patient Outcomes after Ventricular Assist Device Implantation. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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25
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Yamamoto M, Kobayashi K, Ishikawa Y, Nakata K, Funada Y, Kotani Y, Masuda A, Takai T, Azuma T, Yoshida M, Nishimura Y. The inhibitory effects of intravenous administration of rabbit immunoglobulin G on airway inflammation are dependent upon Fcγ receptor IIb on CD11c(+) dendritic cells in a murine model. Clin Exp Immunol 2010; 162:315-24. [PMID: 20819092 DOI: 10.1111/j.1365-2249.2010.04243.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Immunoglobulins (Igs) play important immunomodulatory effects on allergic asthma. Among these, IgG has been reported to regulate allergic inflammation in previous studies about immunotherapy and intravenous immunoglobulin therapy. In this study, to examine the immunomodulatory mechanisms of IgG and FcRs we evaluated the effects of intravenous (i.v.) rabbit IgG administration (IVIgG) on allergic airway inflammation and lung antigen-presenting cells (APCs) in a murine model of ovalbumin (OVA) sensitization and challenge. In OVA-challenged mice, IVIgG attenuated airway eosinophilia, airway hyperresponsiveness and goblet cell hyperplasia and also inhibited the local T helper type (Th) 2 cytokine levels. Additionally, IVIgG attenuated the proliferation of OVA-specific CD4(+) T cells transplanted into OVA-challenged mice. Ex vivo co-culture with OVA-specific CD4(+) cells and lung CD11c(+) APCs from mice with IVIgG revealed the attenuated transcription level of Th2 cytokines, suggesting an inhibitory effect of IVIgG on CD11c(+) APCs to induce Th2 response. Next, to analyse the effects on Fcγ receptor IIb and dendritic cells (DCs), asthmatic features in Fcγ receptor IIb-deficient mice were analysed. IVIgG failed to attenuate airway eosinophilia, airway inflammation and goblet cell hyperplasia. However, the lacking effects of IVIgG on airway eosinophilia in Fcγ receptor IIb deficiency were restored by i.v. transplantation of wild-type bone marrow-derived CD11c(+) DCs. These results demonstrate that IVIgG attenuates asthmatic features and the function of lung CD11c(+) DCs via Fcγ receptor IIb in allergic airway inflammation. Targeting Fc portions of IgG and Fcγ receptor IIb on CD11c(+) DCs in allergic asthma is a promising therapeutic strategy.
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Affiliation(s)
- M Yamamoto
- Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
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26
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Abstract
It has been reported that the levator veli palatini muscles of speakers with velopharyngeal incompetence tend to demonstrate muscle fatigue during speech. This study examined whether a speech aid prosthesis might reduce levator muscle fatigue in such speakers. Eight individuals with post-surgical cleft palates, and who wore a speech aid prosthesis, were studied. Each person was asked to pronounce the syllable [pu] more than 50 times. Mean power frequency (MPF) of one syllable was obtained from electromyographic data from the levator muscle. The MPF regression line was calculated during the course of syllable repetition. The absolute values of the slopes of the regression lines with the prosthesis were significantly smaller than those without the prosthesis. It was shown that the prosthesis reduced the decrease in MPF during speech. These results suggested that speech aid prostheses reduce levator muscle fatigue during speech in persons with velopharyngeal incompetence.
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Affiliation(s)
- K Nohara
- Division for Oral and Facial Disorders, Osaka University Dental Hospital, 1-8 Yamada-oka, Suita-city, Osaka, 565-0871, Japan.
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27
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Ito M, Sudo H, Abumi K, Kotani Y, Takahata M, Fujita M, Minami A. Minimally invasive surgical treatment for tuberculous spondylodiscitis. ACTA ACUST UNITED AC 2010; 52:250-3. [PMID: 20077368 DOI: 10.1055/s-0029-1220685] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The authors report the cases of 3 patients with tuberculous spondylodiscitis. All patients suffered from severe back or low back pain. Posterolateral endoscopic debridement and irrigation were performed followed by retention of a drainage tube at the affected sites. Additional puncture and drainage were conducted at the same time when extensive cold abscesses were identified around the paravertebral muscle. All patients experienced immediate pain relief postoperatively. This technique is effective for rapid pain relief and in obtaining neurological resolution for patients in the early stages of tuberculous spondylodiscitis and may also be a good method for preventing further vertebral collapse and kyphotic spinal deformity such as Gibbus vertebrae.
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Affiliation(s)
- M Ito
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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28
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Umemoto M, Shiota M, Tobiume T, Shimaoka M, Kotani Y, Hoshiai H. Complication of Gynecologycal Endoscopic Surgery – A Retrospective Analysis of More Than 3000 Cases. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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Ohgami Y, Kotani Y, Yoshihiro T, Tsukamoto T, Inoue Y. The contralateral effect of auditory and visual stimuli on the event-related potential: an fMRI study. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71294-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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30
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Kotani Y, Ohgami Y, Yoshihiro T, Tsukamoto T, Inoue Y, Aihara Y. The Functional Difference between the Right Insula and the Right Operculum preceding Feedback Stimuli about Task Performance. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)72132-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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31
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Satouchi M, Kotani Y, Katakami N, Shimada T, Urata Y, Yoshimura S, Funada Y, Hata A, Ando M, Negoro S. Randomized phase II study of two different schedules of gemcitabine and oral TS-1 in chemo-naïve patients with advanced non-small cell lung cancer (NSCLC). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.8103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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32
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Osaki S, Ishino K, Kotani Y, Honjo O, Suezawa T, Kohmoto T, Sano S. 116: Circulatory Load during Hypoxia Impairs Post-Transplant Myocardial Functional Recovery in Donation after Cardiac Death. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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33
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Abstract
An eosinophilic substance (ES) is usually observed in the mouse nasal septum and increases in volume with aging. It has been described as amyloid in textbooks and one report. However, it has been described as "not amyloid" in other reports because there was a negative reaction to Congo red. In this study, the ES was investigated histopathologically and electron microscopically to determine whether it was amyloid or not. The ES was only observed at the interstitium of clear HE-stained nasal glands in the septum, in which 2 kinds of glands were present (dark and clear stained by HE). The volume of the ES was small in young mice and large in older ones. Neither nasal gland degeneration nor inflammation resulted, even if a large amount of the ES was observed. The ES reacted negatively to Congo red but was strongly positive to periodic acid-Schiff reaction with prior diastase treatment. In the electron microscope observation, the ES consisted of amorphous material and collagen, but no nonbranching fibrils. Similar amorphous material was also observed in the nasal gland epithelial cells and was connected to the material in the rough endoplasmic reticulum. The above-mentioned findings indicated that the ES was not amyloid and suggested the ES might consist of not only collagen but also complex carbohydrate, which was produced by the nasal gland epithelial cells.
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Affiliation(s)
- T Doi
- Mitsubishi Chemical Safety Institute Ltd., Sunayama 14, kamisu-shi, Ibaraki, 314-0255 Japan.
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34
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Kotani Y, Morimoto N, Oida Y, Tamura Y, Tamura S, Inoue T, Shimazawa M, Yoshimura S, Iwama T, Hara H. Prevention of in vitro and in vivo acute ischemic neuronal damage by (2S)-1-(4-amino-2,3,5-trimethylphenoxy)-3-{4-[4-(4-fluorobenzyl) phenyl]-1-piperazinyl}-2-propanol dimethanesulfonate (SUN N8075), a novel neuroprotective agent with antioxidant properties. Neuroscience 2007; 149:779-88. [PMID: 17945433 DOI: 10.1016/j.neuroscience.2007.08.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2007] [Revised: 07/31/2007] [Accepted: 08/13/2007] [Indexed: 11/25/2022]
Abstract
(2S)-1-(4-Amino-2,3,5-trimethylphenoxy)-3-{4-[4-(4-fluorobenzyl) phenyl]-1-piperazinyl}-2-propanol dimethanesulfonate (SUN N8075) is a novel antioxidant with neuroprotective properties. We examined whether SUN N8075 inhibited the neuronal damage resulting from permanent focal cerebral ischemia, and examined its neuroprotective properties in vivo and in vitro mechanism. Focal cerebral ischemia was induced by permanent middle cerebral artery occlusion in mice, and the resulting infarction, brain swelling, and neurological deficits were evaluated after 24 h or 72 h. Brain damage was assessed histochemically using terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) staining and antibody recognizing 4-hydroxynonenal histidine adduct (4-HNE). In the in vitro study, we examined the effects of SUN N8075 on 1) lipid peroxidation in mouse brain homogenates and 2) cell viability and caspase-3 protease activity under a hypoxic insult or FeSO(4) in rat cultured cerebrocortical neurons. SUN N8075 administered either 10 min before or at 1 h after the occlusion reduced both infarction size and neurological deficits. SUN N8075 reduced brain swelling when administered 10 min before, 1 h, or 3 h after occlusion. Furthermore, only pretreatment (administered 10 min before) decreased infarct volume and brain swelling at 72 h after middle cerebral artery occlusion. SUN N8075 reduced the number of TUNEL-positive cells and decreased the level of oxidative damage, as assessed by immunopositive staining to 4-HNE. SUN N8075 inhibited lipid peroxidation, leakage of lactate dehydrogenase, caspase-3 activation induced by in vitro hypoxia, and the neuronal damage induced by in vitro FeSO(4) exposure. These findings indicate that SUN N8075 has neuroprotective effects against acute ischemic neuronal damage in mice and may prove promising as a therapeutic drug for stroke.
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Affiliation(s)
- Y Kotani
- Department of Biofunctional Evaluation, Molecular Pharmacology, Gifu Pharmaceutical University, 5-6-1 Mitahora-higashi, Gifu 502-8585, Japan
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35
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Satouchi M, Negoro S, Funada Y, Urata Y, Shimada T, Yoshimura S, Kotani Y, Sakuma T, Watanabe H, Adachi S, Takada Y, Yatabe Y, Mitsudomi T. Predictive factors associated with prolonged survival in patients with advanced non-small-cell lung cancer (NSCLC) treated with gefitinib. Br J Cancer 2007; 96:1191-6. [PMID: 17387341 PMCID: PMC2360147 DOI: 10.1038/sj.bjc.6603710] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [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] [Indexed: 02/07/2023] Open
Abstract
This study aimed to identify predictive factors associated with prognostic benefits of gefitinib. A total of 221 Japanese patients who received gefitinib (250 mg day(-1)) were examined retrospectively and potential predictive factors analysed. Overall response rate (ORR) was 24.4% and median survival time (MST) was 8.0 months. In a log-rank test, survival was significantly better in females, patients with adenocarcinoma, never-smokers, favourable performance status (PS) and patients with epidermal growth factor receptor (EGFR) mutation. The lower the smoking exposure (Brinkman Index (BI)=cigarettes per day x years smoked), the better the MST (BI 0: 14.5 months, BI <500: 9.5 months, BI 500 to <1000: 6.9 months, BI > or =1000: 4.0 months). Positive-EGFR mutation status and PS 0-1 were independent predictors of favourable prognosis by multivariate analysis. Prognosis was significantly different according to EGFR mutation status (with the same smoking status), but not according to smoking status (with the same EGFR mutation status). EGFR mutation status is the most important independent predictor of survival benefit with gefitinib treatment. Although differences in prognosis were observed according to relative smoking status and smoking exposure, the results suggested that smoking is not a direct predictor of prognosis, yet is a surrogate marker of EGFR mutation status.
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Affiliation(s)
- M Satouchi
- Hyogo Medical Center for Adults, Respiratory Medicine, Akashi, Japan.
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36
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Osaki S, Ishino K, Kotani Y, Honjo O, Suezawa T, Kanki K, Kohmoto T, Sano S. Preservation of non-heart-beating cardiac donor using isolated myocardal perfusion: The importance of initial controlled reperfusion. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.12.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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37
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Abstract
Cell-surface oxytocinase inactivates oxytocin and regulates oxytocin stimulation. We reported that oxytocinase in human endometrial epithelial cells was secreted from the cell membrane in the mid-secretory phase and disappeared from the cell surface. On the other hand, the production in human endometrium of prostaglandins, which play important roles in the reproductive process, has been reported to be upregulated by oxytocin. We investigated whether progesterone affects cell-surface oxytocinase and oxytocin-induced prostaglandin E2 (PGE2) production in vitro. Progesterone induced secretion of oxytocinase into the culture medium, which resulted in a decrease in cell-surface oxytocinase. Production of PGE2 was increased slightly by oxytocin without progesterone, and significantly with progesterone. The inhibition of oxytocinase activity by amastatin had a similar effect to the loss of cell-surface oxytocinase caused by progesterone. It is therefore likely that the cell-surface oxytocinase of endometrial epithelial cells modified by progesterone plays an important role in the function of the human endometrium through PGE2.
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Affiliation(s)
- Y Kotani
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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38
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Tsujino K, Hirota S, Yoden E, Fujii O, Kotani Y, Kado T, Adachi S, Takada Y. Radiation pneumonitis following accelerated hyperfractionated concurrent chemoradiation for small cell lung cancer-DVH analysis in comparison with conventionally fractionated chemoradiation. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Suda K, Hagiwara H, Kotani Y, Kato K, Sasaki M, Izawa T, Komabayashi T. Effect of exercise training on ANP receptors. Res Commun Mol Pathol Pharmacol 2002; 108:227-35. [PMID: 11913714] [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: 02/24/2023]
Abstract
To clarify whether exercise-training affects ANP function, we trained male Wistar rats by treadmill running for nine weeks and measured ANP receptor number and affinity in the kidney, lung and adrenal. We also measured guanylate cyclase activity, by which second messenger cGMP accumulates. The number of adrenal ANP receptor significantly increased after exercise-training. There was no significant difference of affinity for all the organs examined between the training group and the control group. Guanylate cyclase activity tended to decrease in the kidney in the training group. A significant difference was found when the samples were stimulated by C-type natriuretic peptide (CNP). There was no significant difference in guanylate cyclase activity in the lung and adrenal. These findings are consistent with the exercise-induced hypervolemia, but not with the anti-hypertensive role of exercise-training.
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Affiliation(s)
- K Suda
- Department of Human System Science, Tokyo Institute of Technology, Japan.
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40
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Usui Y, Sasaki T, Kimura K, Tanaka N, Kotani Y, Saisho S, Takabatake D, Nomura S. Gasless endoscopic thyroid and parathyroid surgery using a new retractor. Surg Today 2002; 31:939-41. [PMID: 11759896 DOI: 10.1007/s005950170041] [Citation(s) in RCA: 23] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Endoscopic thyroid and parathyroid surgery have now become feasible procedures, but the working space provided by the gasless technique is more limited than that of the CO2 insufflation technique. Gasless endoscopic surgery was performed in 20 patients with thyroid or parathyroid tumors. A newly designed retractor was used. Gasless endoscopic surgery was performed in all patients without conversion to conventional techniques. The recurrent laryngeal nerve was visualized and preserved in all patients. No recurrent nerve palsy was noted. The new retractor created a sufficient working space, and our results demonstrated the feasibility of this technique.
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Affiliation(s)
- Y Usui
- Department of Surgery, National Okayama Medical Center, Japan
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41
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Shimamoto N, Kotani Y, Shono Y, Kadoya K, Abumi K, Kaneda K, Minami A. Biomechanical evaluation of anterior spinal instrumentation systems for scoliosis: in vitro fatigue simulation. Spine (Phila Pa 1976) 2001; 26:2701-8. [PMID: 11740358 DOI: 10.1097/00007632-200112150-00013] [Citation(s) in RCA: 30] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A biomechanical study was designed to assess the bone-screw interface fixation strength among five anterior spinal instrumentation systems for scoliosis before and after a fatigue simulation. OBJECTIVES The objectives of the current study were twofold: 1) evaluate the static (initial) strength at the bone-screw interface and 2) evaluate dynamic (post fatigue) strength of the bone-screw interface after a fatigue simulation to investigate a possible mechanism for postoperative loss of correction. SUMMARY OF BACKGROUND DATA Although the recent advancement of anterior instrumentation for scoliosis has permitted shorter fusion segments and improved surgical correction, the loss of correction over the instrumented segments still has been reported in one-rod systems. Little is known about the mechanism for loss of correction. METHODS Twenty-five fresh-frozen calf spines (T6-L6) were used. A total of five instrumentation systems included the following: Anterior ISOLA (ISOLA), Bad Wildungen Metz (BWM), Texas Scottish Rite Hospital system (TSRH), Cotrel-Dubousset Hoph (CDH), and Kaneda Anterior Scoliosis System (KASS). Screw pullout and rotational tests in the sagittal plane using a single vertebra were performed to investigate bone-screw interface fixation strength before and after a fatigue simulation. To simulate cyclic loading that the spine could undergo in vivo, a fatigue simulation using compressive-flexion loading up to 24,000 cycles was carried out. RESULTS Mean maximum tensile pullout force decreased in the following order: KASS > CDH > BWM > TSRH > ISOLA (F = 29.91, P < 0.0001). KASS blunt tip screw was 26% stronger in pullout force than KASS sharp tip screw (P < 0.05). The one-rod system demonstrated a positive correlation between pullout force and both bone mineral density and screw insertional torque. For fatigue analysis the rotational strength at the most cephalad and caudal segments significantly decreased after a fatigue simulation in the one-rod system (P < 0.05). The two-rod system showed no significant decrease after a fatigue simulation. CONCLUSIONS Simulating the cyclic loading to the construct, screw loosening at the bone-screw interface was produced in the one-rod system. This screw loosening may elucidate one mechanism for loss of correction in the one-rod system. The two-rod system may have the potential to minimize the risk of loss of correction.
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Affiliation(s)
- N Shimamoto
- Department of Orthopaedic Surgery, Hokkaido Graduate University School of Medicine, Sapporo, Japan.
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42
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Hozumi A, Nishimura Y, Nishiuma T, Kotani Y, Yokoyama M. Induction of MMP-9 in normal human bronchial epithelial cells by TNF-alpha via NF-kappa B-mediated pathway. Am J Physiol Lung Cell Mol Physiol 2001; 281:L1444-52. [PMID: 11704541 DOI: 10.1152/ajplung.2001.281.6.l1444] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this study, we determined whether the proinflammatory cytokines tumor necrosis factor (TNF)-alpha and interleukin-1 beta contribute to the regulation of matrix metalloproteinase (MMP)-9 in human bronchial epithelial cells and whether the induction of MMP-9 is regulated by the transcription factor nuclear factor (NF)-kappa B. We demonstrated that TNF-alpha induced MMP-9 at both the protein and mRNA levels in human bronchial epithelial cells and that interleukin-1 beta did not. In contrast, induction of the tissue inhibitor of metalloproteinase-1 by TNF-alpha was less than that of interleukin-1 beta. Increased expression of MMP-9 and NF-kappa B activation induced by TNF-alpha were inhibited by pyrrolidine dithiocarbamate and N-acetyl-L-cysteine but were not inhibited by curcumin. These results suggest that TNF-alpha induces the expression of MMP-9 in human bronchial epithelial cells and that this induction is mediated via the NF-kappa B-mediated pathway.
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Affiliation(s)
- A Hozumi
- First Department of Internal Medicine, Kobe University School of Medicine, Kobe 650-0017, Japan
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Abstract
Stimulus-preceding negativity (SPN) was recorded to investigate the effect of positive and negative emotion on the SPN preceding feedback stimuli. In the time-estimation task in which an acoustic stimulus was presented 3 s after a voluntary movement, (1) the negative valence (aversive band noise and pure tone) and (2) the positive valence (reward and no-reward) of feedback stimuli were manipulated. During noise conditions, participants received the band noise as a feedback stimulus except when their time estimations were accurate. They received a monetary reward for accurate time estimations under the reward conditions. The prefeedback SPN was larger under reward than no-reward conditions. In addition, the prefeedback SPN in the noise condition was larger compared with the pure tone condition. Our results appear to suggest that emotional anticipation is important in eliciting the prefeedback SPN.
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Affiliation(s)
- Y Kotani
- Department of Human System Science, Tokyo Institute of Technology, Japan.
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44
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Hirota S, Tsujino K, Endo M, Kotani Y, Satouchi M, Kado T, Hishikawa Y, Obayashi K, Takada Y, Kono M, Abe M. Dosimetric predictors of radiation esophagitis in patients treated for non-small-cell lung cancer with carboplatin/paclitaxel/radiotherapy. Int J Radiat Oncol Biol Phys 2001; 51:291-5. [PMID: 11567801 DOI: 10.1016/s0360-3016(01)01648-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE To establish dosimetric predictors of radiation esophagitis (RE) in patients treated with a combination of carboplatin, paclitaxel, and radiotherapy. METHODS AND MATERIALS Three-dimensional radiotherapy plans of 26 patients with non-small-cell lung cancer who received 50-60 Gy of radiotherapy concurrently with weekly administration of carboplatin (AUC 2) and paclitaxel (40-45 mg/m(2)) were reviewed in conjunction with RE. The factors analyzed included the following: percentages of organ volumes receiving >40 Gy (V40), >45 Gy (V45), >50 Gy (V50), and >55 Gy (V55); the length of esophagus (total circumference) treated with >40 Gy (LETT40), >45 Gy (LETT45), >50 Gy (LETT50), and >55 Gy (LETT55); the maximum dose in the esophagus (Dmax); and the mean dose in the esophagus (Dmean). Data were obtained on the basis of superposition algorithm. RESULTS All factors except Dmax showed statistical correlation with RE. Good correlations were shown between RE and LETT45 (rho = 0.714) and V45 (rho = 0.686). CONCLUSIONS LETT45 and V45 appear to be useful dosimetric predictors of RE. It is also suggested that Dmax does not predict RE.
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Affiliation(s)
- S Hirota
- Department of Radiology, Hyogo Medical Center for Adults, Akashi, Japan.
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45
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Iwama T, Kotani Y, Yamakawa H, Nagata I, Hashimoto N, Sakai N. Cerebral ischemic complications following intracranial bleeding in patients with moyamoya disease--three case reports. Neurol Med Chir (Tokyo) 2001; 41:450-3. [PMID: 11593973 DOI: 10.2176/nmc.41.450] [Citation(s) in RCA: 24] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Three patients with bleeding-type moyamoya disease suffered ischemic complications following their first episode of intracranial bleeding. The patients presented with intraventricular hemorrhage and suffered cerebral infarction on the 14th, 16th, and 11th days after the ictus, respectively. The clinical records revealed no obvious hypotension before progression to infarction and suggested that dehydration accelerated by the administration of hyperosmotic drugs was a contributing factor to the infarction. Two patients underwent superficial temporal artery-middle cerebral artery anastomoses in the chronic stages and have never experienced further ischemic complications. The other patient died despite receiving intensive care. Hemodynamic reserve may be severely impaired in patients with bleeding-type moyamoya disease. Adequate control of hydration is important to prevent cerebral infarction after intracranial bleeding in patients with moyamoya disease.
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Affiliation(s)
- T Iwama
- Department of Neurosurgery, Gifu University School of Medicine, Gifu
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46
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Kadoya K, Kotani Y, Abumi K, Takada T, Shimamoto N, Shikinami Y, Kadosawa T, Kaneda K. Biomechanical and morphologic evaluation of a three-dimensional fabric sheep artificial intervertebral disc: in vitro and in vivo analysis. Spine (Phila Pa 1976) 2001; 26:1562-9. [PMID: 11462087 DOI: 10.1097/00007632-200107150-00012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN We have developed a new artificial intervertebral disc consisting of triaxial three-dimensional fabric for the sheep lumbar spine. To clarify the characteristics of the new implant, a series of biomechanical tests and morphologic evaluations were conducted. OBJECTIVES To investigate the static, viscoelastic, and fatigue properties of the three-dimensional fabric disc in comparison with natural sheep disc and to evaluate their biomechanical and morphologic alteration in vivo. SUMMARY OF BACKGROUND DATA In its human dimensions the three-dimensional fabric disc revealed mechanical properties similar to a natural human disc. METHODS The disc-body units from sheep spine and the sheep three-dimensional fabric discs underwent tensile-compressive (200 N), torsional (5 Nm), and creep-recovery tests (30 minutes-30 minutes, 200 N). After fatigue loading (2 million, compressive 200 N) the biomechanical changes and the debris were investigated. For in vivo evaluation after placing in the sheep psoas muscles for 6 months, the surface of the three-dimensional fabric disc was evaluated using macroscopy and scanning electron microscopy, followed by previous biomechanical tests. RESULTS The behavior of the sheep three-dimensional fabric disc was similar to that of natural sheep disc in tensile-compressive and creep-recovery tests. In torsional testing the behavior of natural sheep disc was more rigid than that of the sheep three-dimensional fabric disc. After fatigue loading there was no biomechanical change and no debris detected. Six months after surgery no morphologic deterioration was observed nor were there changes in biomechanical parameters. CONCLUSIONS The sheep three-dimensional fabric disc exhibited biomechanical and morphologic biostability, appropriate viscoelasticity, and excellent fatigue properties. The three-dimensional fabric disc has a potential for clinical application of human intervertebral disc replacement.
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Affiliation(s)
- K Kadoya
- Department of Orthopaedic Surgery, Hokkaido University, Graduate School of Medicine, Sapporo, Japan
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Funada Y, Nishimura Y, Kamemura K, Nakajima T, Tsuchiya T, Nishiuma T, Kotani Y, Yamanaka Y, Ohnishi Y, Yokoyama M. Familial adult onset primary alveolar hypoventilation syndrome. Intern Med 2001; 40:526-31. [PMID: 11446680 DOI: 10.2169/internalmedicine.40.526] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 41-year-old man fell into type II respiratory failure after catching a cold, and became dependent on a respirator. Chest radiography showed no abnormalities and the hyperventilation test showed improved arterial blood gas findings. His sleep study showed marked nocturnal desaturation due to hypopnea and apnea with a decrease of thoracic and abdominal movement during sleep. Therefore, we diagnosed him as primary alveolar hypoventilation syndrome (PAH). Seven years previously, his 2-year elder sister had suffered from similar respiratory failure during her second pregnancy and had been diagnosed as PAH. While myopathy was suspected in both cases, attenuation of muscle strength was slight and it appeared not to be the main cause of alveolar hypoventilation. Since medication was not effective in each case, they underwent non-invasive positive pressure ventilation (NIPPV). While sustained mild hypercapnia remained during the daytime, it improved their respiratory failure. To our knowledge, this is the first study of familial adult onset PAH.
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Affiliation(s)
- Y Funada
- First Department of Internal Medicine, Kobe University School of Medicine
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Nishimura Y, Yu Y, Kotani Y, Nishiuma T, Lin S, Maeda H, Yokoyama M. Bronchial hyperresponsiveness and exhaled nitric oxide in patients with cardiac disease. Respiration 2001; 68:41-5. [PMID: 11223729 DOI: 10.1159/000050461] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Increased concentrations of exhaled nitric oxide (NO) correlate with increased airway inflammation and measurement of exhaled NO is a noninvasive method for the management of bronchial asthma. In various cardiac diseases, bronchial hyperresponsiveness is observed, as is bronchial asthma. However, there have been few studies on the relationship between exhaled NO and bronchial responsiveness in cardiac diseases. OBJECTIVE The aim of this study was to clarify the association between exhaled NO and bronchial hyperresponsiveness in patients with cardiac disease. METHODS We measured expired NO and bronchial responsiveness to inhaled methacholine in 19 patients with cardiac diseases and 17 with bronchial asthma. We divided the cardiac disease patients into two groups according to their bronchial responsiveness to inhaled methacholine: BHR(+) group consisted of 12 patients with bronchial hyperresponsiveness and BHR(-) group consisted of 7 patients without bronchial hyperresponsiveness. RESULTS The concentration of exhaled NO in the asthmatic patients was significantly higher than that in the BHR(+) and BHR(-) groups (142.0 +/- 17.0, 33.6 +/- 6.4 and 42.3 +/- 10.3 ppb, respectively, p < 0.01). There was no significant difference in exhaled NO between BHR(+) and BHR(-) groups. There were also no significant differences in the parameters of bronchial hyperresponsiveness between the cardiac BHR(+) and bronchial asthma groups. These results indicate that bronchial hyperresponsiveness in patients with cardiac diseases is not a consequence of eosinophilic inflammation or of exhaled NO. CONCLUSION We conclude that bronchial hyperresponsiveness in patients with cardiac diseases can occur independently of NO production.
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Affiliation(s)
- Y Nishimura
- First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan.
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Satouchi M, Kotani Y, Kadou T, Endo M, Ohbayashi K, Takada Y. [Refractory non-small-cell lung cancer responding to combination chemotherapy with docetaxel, gemcitabine and cisplatin]. Gan To Kagaku Ryoho 2001; 28:105-9. [PMID: 11201378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The combination of docetaxel (TXT), gemcitabine (GEM), and cisplatin (CDDP) produced a regression in a squamous cell carcinoma of the lung that had recurred after radiation therapy plus chemotherapy, and was resistant to the combination of carboplatin (CBDCA) with etoposide (ETP) or paclitaxel (TXL). The patient was a 62-year-old man with squamous cell lung cancer, which was first successfully treated by a combination of radiation therapy and chemotherapy, but showed local recurrence after 8 months. Although the recurrence was treated with CBDCA plus ETP and then TXL, the tumor continued to grow with symptomatic progression of airway stenosis. The tumor began to regress after the regimen of TXT, GEM and CDDP was started. This therapy achieved PR with symptomatic improvement. The combination of TXT, GEM and CDDP may be effective for recurrent non-small-cell lung carcinoma, even in patients that have failed to respond to more than one chemotherapy regimen.
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Affiliation(s)
- M Satouchi
- Dept. of Respiratory Medicine, Hyogo Medical Center for Adults
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Iwata Y, Kotani Y, Hoshino R, Takei N, Iyo M, Mori N. Carbamazepine augmentation of clomipramine in the treatment of refractory obsessive-compulsive disorder. J Clin Psychiatry 2000; 61:528-9. [PMID: 10937614 DOI: 10.4088/jcp.v61n0712c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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